The present application relates to an identifiable optical cable, comprising a plurality of optical units. Each optical unit comprises a plurality of optical fibers. Among all of the optical fibers contained in each optical unit, one optical fiber is a main identification optical fiber, and the other optical fibers are auxiliary identification optical fibers. Gratings are inscribed on the main identification optical fibers. The grating wavelengths of the main identification optical fibers in the optical units are different. According to the present application, an optical fiber can be quickly and accurately identified.
The present application relates to the technical field of optical communications, and relates to a method and system for determining a decision threshold for multiple asynchronous wavelength label signals. The method comprises: upon receipt of a target wavelength label signal obtained by performing alternating positive and negative coding, carrying out demodulation processing on the target wavelength label signal so as to obtain a signal power value corresponding to each bit in the target wavelength label signal; on the basis of the signal power value, performing iterative calculation to obtain an average signal power value and a noise power value which correspond to each bit; and on the basis of the average signal power value and the noise power value, calculating a decision threshold corresponding to each bit. According to the present application, by means of alternating positive and negative coding, the probabilities of transmitting bit 0 and transmitting bit 1 within a unit time each are stabilized at a level of 50%, so that the influence of a non-random signal on a decision threshold is reduced, and thus the decision threshold obtained is suitable for decision-making of a dynamic random signal and a static non-random signal; high-precision adaptive adjustment of the decision threshold is realized by means of an iteration method, and the influence of noise on the decision threshold is reduced.
The present invention relates to an optical distribution frame and a reversing method. The optical distribution frame comprises: a chassis, two opposite sides of which are both provided with mounting points; a support, which is detachably mounted at the mounting points on either side of the chassis; and a fiber channel tray, which is hinged to the support and, when the support is mounted at the mounting points on the different side, is reversed along with the support. After the position of the support changes, the fiber channel tray connected to the support can be reversed together, so that the support and the fiber channel tray can be switched from one side of the chassis to the opposite side, and after reversing, the chassis can be switched from one rotating direction to the other rotating direction with respect to the fiber channel tray. Therefore, by means of disassembling and reversing, one frame can meet two different use scenarios of left-handed rotation and right-handed rotation, such that there is no need to provide two frames, thus reducing stock quantity, and further saving time and cost.
A DMD optimized graded-index multimode optical fiber, comprising a fiber core layer (1), an inner cladding layer (2), a depressed cladding layer (3), and an outer cladding layer (4) which are sequentially arranged from inside to outside along the radial direction of the multimode optical fiber. Along the radial direction of the multimode optical fiber, the inner cladding layer (2) comprises a first part (20) and a second part (21) which are sequentially arranged from inside to outside, the refractive index of the first part (20) relative to pure quartz glass is linearly gradually decreased along with the increase of the radius of the multimode optical fiber, and the refractive index of the second part (21) relative to the pure quartz glass linearly gradually rises along with the increase of the radius of the multimode optical fiber. The inner cladding layer (2) is controlled in two segments, so that the refractive index profile of the inner cladding layer (2) becomes a V-shaped broken line, and the DMD at the starting position of the fiber core layer (1) of the multimode optical fiber is optimized, and the high-order mode transmission performance at the starting position of the fiber core layer (1) is improved; and additionally, the DMD, the overfilled launch effective bandwidth, and the effective bandwidth are considered at the same time, and the output ratio of high-end multimode optical fibers is increased, thereby improving the product quality.
The present invention relates to the field of network communications, and particularly relates to a reinforcement-learning-based digital twin network slicing method and apparatus. The method mainly comprises: a reinforcement learning module acquiring the current network information triple and a network slicing requirement triple from a knowledge graph; the reinforcement learning module generating at least one decision-making action for network slicing, wherein each decision-making action includes: searching for a PNF node according to a node selection probability model and the knowledge graph, and mapping a resource, which is allocated to a VNF by each PNF node according to a resource allocation model, into a resource allocation vector; the knowledge graph making a decision according to the decision-making action to obtain a decision-making result, wherein the decision-making result indicates deployment positions of a network slice VNF and a network slice PNF; and the knowledge graph performing update according to the decision-making result, and transmitting an updated network state back to the reinforcement learning module, and the reinforcement learning module issuing a network slice deployment policy. By means of the present invention, the optimal slice deployment scheme in the current network scenario can be quickly obtained in a dynamic network environment.
A low-loss anti-resonant hollow-core fiber, comprising a fiber core region (1) and a cladding region, wherein the cladding region comprises an outer cladding layer (2), a first anti-resonant layer and a second anti-resonant layer, which are sequentially arranged from outside to inside; the first anti-resonant layer comprises a plurality of first elliptical capillaries (3), which are rotationally and symmetrically distributed; the first elliptical capillaries (3) are tangential to the outer cladding layer (2); the second anti-resonance layer comprises a plurality of second elliptical capillaries (4), which are rotationally and symmetrically distributed; the second elliptical capillaries (4) are tangential to the first elliptical capillaries (3); the second elliptical capillaries (4) and the first elliptical capillaries (3) are arranged in a staggered manner; and a region surrounded by the boundaries of the first anti-resonance layer and the second anti-resonance layer is the fiber core region (1). A circular cladding tube in the hollow-core fiber is changed to an elliptical cladding tube, and the impact of a high-order mode is suppressed by means of reducing the curvature radius of the cladding tube, such that the confinement loss of a fundamental mode can be reduced. Two layers of tangential elliptical capillaries support each other, such that deformation of the elliptical capillaries during a preparation process can be avoided, thereby improving the preparation accuracy.
Disclosed in the present invention is a clock recovery method for multiple asynchronous wavelength label signals. The method comprises: performing channel separation on multiple asynchronous wavelength label signals, wherein the separated channel data is combined into a string of gap-containing channel data in a time dimension; synchronously marking the channel data with corresponding channel labels and valid signal marks; outputting three pieces of independent synchronization data; according to the inputted valid signal marks, determining whether the channel data and the channel labels are valid; if yes, reading a required state parameter of a clock phase-locked loop; and performing clock recovery processing on the channel data, and re-marking the processed channel data with valid signal marks and channel labels matched with the channel data. According to the present invention, a single clock recovery module is used to perform clock recovery on multiple asynchronous signals, so that the requirement of exponentially increasing logic resources when multiple asynchronous signals are processed using a conventional clock recovery algorithm can be avoided. The present invention also provides a corresponding clock recovery system for multiple asynchronous wavelength label signals.
The present invention relates to the field of network management and control, in particular to a method and system for cooperative management and control of protection switching of IP and optical networks. The method comprises: acquiring an initial protection configuration parameter of an IP service and a protection configuration parameter of an optical network, and setting as cooperative protection delay time the sum of the protection delay time of the optical network and the protection switching time of the optical network; determining a protection configuration parameter of the IP service, which is sent to an IP network management and control function, the protection configuration parameter of the IP service comprising the protection delay time and/or the cooperative protection delay time of the IP service; and, when a fault is detected on a source or sink node of the IP service, triggering protection switching according to the protection configuration parameter of the IP service. The present invention can ensure the priority of protection switching of an optical network when an IP service is interrupted due to a fault of the optical network, thereby reducing the number of times of invalid switching of the IP service, and avoiding network instability.
A connector (100), an adapter (200), and a connector assembly. The connector (100) comprises: a connector body (1), the connector body (1) being provided with locking grooves (11) used for locking with locking sliding blocks (202) of the adapter (200); and an outer sleeve (2), the outer sleeve (2) being sleeved on the connector body (1), the outer sleeve (2) being slidable relative to the connector body (1) in the axial direction thereof, and the outer sleeve (2) being provided with inclined surfaces (211). When the locking sliding blocks (202) are located in the locking grooves (11) and the outer sleeve (2) is pulled in the direction distant from the adapter (200), the inclined surfaces (211) drive the locking sliding blocks (202) to be separated from the locking grooves (11). Because the locking grooves (11) are formed in the connector body (1), the locking grooves (11) can match the locking sliding blocks (202) of the adapter (200), thus achieving locking, and the inclined surfaces (211) are further provided on the outer sleeve (2) of the connector (100); and when unlocking is needed, the outer sleeve (2) is pulled in the direction distant from the adapter (200), and the inclined surfaces (211) can drive the locking sliding blocks (202) to be separated from the locking grooves (11), thus achieving unlocking. Unlocking is achieved without screwing the connector (100), and the operation is relatively simple.
An adapter, a connector, and an optical fiber connection box. The adapter comprises: a connection body (1), which is provided with a first fixing portion (11) and a limit slot (12); and an outer shell (2), which is sleeved on the connection body (1), wherein a push ring (20) and an elastic member (21) are provided between the outer shell (2) and the connection body (1); when the connector is inserted into an engagement channel (10), the first fixing portion (11) deforms, and after the push ring (20) is pushed by the connector in an insertion direction to move along the limit slot (12), the first fixing portion (11) springs back and is in a snap-fit with the connector; there is a first unlocking gap between the push ring (20) and the corresponding end of the limit slot (12); and during unlocking, the first fixing portion (11) is driven by the outer shell (2) to deform and is unlocked from the connector, and at the same time, the elastic member (21) springs back to drive the push ring (20) to reset to eliminate the first unlocking gap. According to the adapter, the connector and the optical fiber connection box, compared with a screwing method, the operation difficulty during locking and unlocking is reduced, and particularly for the unlocking process, the operation is simple, quick unlocking can be achieved, and the operation is not affected even in a small installation space.
An outdoor pre-connection box, comprising: a box (1), one side of the box (1) being provided with a base (2), and the base (2) and the box (1) enclosing a sealing cavity; an adapter (3) fixedly arranged on the base (2), wherein the adapter (3) is located in the sealing cavity, and the adapter (3) is provided with a butt joint part located in the sealing cavity; and an outdoor connector (4) inserted into the sealing cavity and in butt joint with the butt joint part. Since the butt joint part of the adapter (3) used for being in butt joint with the outdoor connector (4) is located in the sealing cavity, due to the protection of the box (1), outdoor water is not prone to entering the sealing cavity, and no sealing structure is required at the butt joint position of the butt joint part and the outdoor connector, so that a sealing structure does not need to be provided, the number of or the space occupied by parts can be reduced, thereby reducing the size of the outdoor pre-connection box, and reducing space occupation.
An optical fiber connector plug (100), an adapter (200) and a connector assembly. The optical fiber connector plug comprises a plug body (110), which is of a hollow tube structure that allows an optical fiber (170) to penetrate, wherein a sliding block limiting slot (111) is provided in a side wall of the plug body (110) in a radial direction; a locking sliding block (120), which is slidably connected into the sliding block limiting slot (111), wherein an elastic arm (112) for elastically supporting the locking sliding block (120) away from the sliding block limiting slot (111) is provided on each side of the sliding block limiting slot (111); and an unlocking sliding sleeve (130), which is sleeved on an outer wall of the plug body (110) and forces the locking sliding block (120) to slide in a direction close to or away from the sliding block limiting slot (111). The elastic arms (112) for elastically supporting the locking sliding block (120) to be away from the sliding block limiting slot (111) are respectively provided on two sides of the sliding block limiting slot (111), and the elastic arms (112) cause the locking sliding block (120) to move in a direction close to or away from the sliding block limiting slot (111), such that locking of the optical fiber connector plug (100) into the optical fiber adapter (200) is achieved. The structure of an optical fiber connector is simplified, the number of parts is reduced, the product cost is reduced, and the connector assembly has a reliable locking structure and is easy to operate.
An oblique-sliding-block (3) squeezing device for sealing an optical cable splice closure, and an optical cable splice closure. The squeezing device comprises a base (1), a column (2), an oblique sliding block (3), a squeezing mechanism (4) and an operation mechanism (5), wherein the column (2) is assembled on the base (1), and is provided with an obliquely arranged track groove (20); the oblique sliding block (3) is located in the track groove (20), and is in line contact or point contact with an inner wall of the track groove (20); the squeezing mechanism (4) is sleeved on the column (2), and a placement space for holding an elastic sealing body (6) therein is formed between the squeezing mechanism (4) and the base (1); the operation mechanism (5) passes through the squeezing mechanism (4) and the track groove (20), and is in threaded connection with the oblique sliding block (3); and the operation mechanism (5) is configured to rotate so as to drive the oblique sliding block (3) to move in the track groove (20), and make the squeezing mechanism (4) on the column (2) move towards or away from the base (1). Since the oblique sliding block (3) is in line contact or point contact with the track groove (20), compared with the oblique sliding block (3) being in surface contact with the track groove (20), the resistance of the oblique sliding block (3) from the inner wall of the track groove (20) is greatly reduced, so that during operation, a small force can be applied to squeeze the elastic sealing body (6), thereby achieving sealing of the optical cable splice closure.
The application relates to an IPTV service-based VR panoramic video playback method and system. The invention comprises an IPTV service platform and an IPTV terminal; the IPTV service platform comprises IPTV content operations, IPTV service navigation, and IPTV media delivery; the IPTV terminal comprises an IPTV terminal panoramic media processing system, a display device, and an external device; the IPTV terminal panoramic media processing system comprises a browser subsystem, a streaming media subsystem, a graphics rendering subsystem, a web page presentation window module, a VR video presentation window module and a synthesis module. An IPTV application decides, according to an extended JS interface called by the IPTV service navigation, whether to start a local panoramic playback application of the IPTV terminal. When the local panoramic playback application of the IPTV terminal is started, the local application calls a playback interface, creates a 3D model, renders a decoded video image to a 3D model and, when necessary, displays a corresponding UI interface. The invention combines an IPTV service platform and an IPTV terminal capability to achieve an IPTV-supported VR panoramic multimedia service capability.
A ring-sprayed optical fiber, and an optical cable. The ring-sprayed optical fiber is a single-mode optical fiber, and comprises a natural-color optical fiber (1) and an ink-jet identifier (2), which is provided on the outer wall of the natural-color optical fiber (1), wherein the ink-jet identifier (2) comprises several ink dots (20), which are periodically distributed at intervals in the axial direction of the natural-color optical fiber (1); and an ink dot period of the ink dots (20) is Λ ≤ 350 μm or Λ ≥ 650 μm. By means of controlling the ink dot period of the ink dots (20) to be Λ ≤ 350 μm or Λ ≥ 650 μm, an additional attenuation loss caused by the presence of the ink-jet identifier (2) can be reduced, such that the occurrence of a grating effect in the ring-sprayed optical fiber can be reduced or even prevented to the greatest possible extent, thereby guaranteeing the transmission performance within a transmission wavelength range.
The present application relates to the technical field of automatic protection switching of PTN networks. Disclosed are a double-ring switching implementation method and system. The method is applied to each upper ring node, and comprises: acquiring cross-ring service protection path group information corresponding to each intersecting ring node; acquiring reachability information of each intersecting ring node sent by intersection nodes, the reachability information being used for indicating whether an intersecting ring node is reachable; determining an unreachable intersecting ring node according to the reachability information of each intersecting ring node; and performing path switching on the basis of the cross-ring service protection path group information corresponding to the unreachable intersecting ring node. The present application can implement batch switching of services having the same ring binding path, so that the cross-ring service switching time is shortened, and implementation of double-ring switching does not need refreshing of a ring binding relation table by means of an intersection node, thereby overcoming the defects of the principle of carrying out double-ring switching at an intersection node by taking a cross-ring service as an entry, and enabling the switching time to be independent of the number of ring binding service entries, achieving performance improvement by an order of magnitude.
The present invention relates to the field of service configuration management. Disclosed are a method and apparatus for dynamically switching a service. The steps of the method comprise: S1: creating a service interface layer and a hardware interface layer, setting all service configuration information in the service interface layer, and setting hardware configuration information of each piece of hardware in the hardware interface layer; and S2: in the service interface layer, performing virtualization mapping on each piece of service configuration information and all hardware capable adaptive to the service configuration information, then generating a plurality of service paths for each piece of service configuration information, and marking one of the service paths as a main path. The present invention can automatically and rapidly switch a service when hardware changes, thereby avoiding service interruption.
The present invention relates to the technical field of Ethernet, and in particular to a method and device for optimization of network latency in flexible Ethernet. The method mainly comprises: by using a basic unit transmitting end of a reference network element as a basic unit frequency and phase reference, calculating rate adjustment information according to a rate difference between a basic unit receiving end and the basic unit transmitting end of the reference network element, and transmitting the rate adjustment information to an upstream network element; adjusting a basic unit multi-frame transmitting rate of a basic unit transmitting end connected to the reference network element, until the reference network element keeps the number of received basic units consistent with the number of transmitted basic units in a preset period; a basic unit receiving end, connected to the reference network element, of a downstream network element of the reference network element caching a basic unit multi-frame data stream, adjusting position distribution of idle code blocks inserted between basic units, and then transmitting the basic unit multi-frame data stream to the downstream network element according to the number and position distribution of the idle code blocks after the adjustment. The present invention can implement phase locking and alignment of basic units of an entire fine granularity network, and achieves high adjustment speed, small cache depth and high stability.
The present invention relates to the technical field of communication, and provides an optical network fault analysis method and apparatus. The method comprises: using as a basis a network topology in which each link is respectively disconnected, establishing a plurality of fault networks; according to the established fault networks and, within the fault networks, services needing to be recovered, generating a target function, and generating one or more constraint functions for each fault network; combining the target function and the constraint function(s), and establishing a mathematical model taking as a target the minimum total number of relays and the maximum total number of recovered services; and solving the mathematical model to obtain an optimal optical network fault recovery path. The present invention incorporates relay resources from different fault networks into a calculation process, allowing resources in different fault networks to be reused, ensuring the minimum number of added relays when a service is being recovered following link disconnection, and thereby reducing network resource consumption.
The present invention relates to a digital twin architecture, a model evaluation system, and a model running method. The digital twin architecture mainly comprises a data model interaction module, a model updating module and a resource calling module, wherein the data model interaction module is used for storing data of a probability model and a simulation model into a data pool, the model updating module is used for updating the probability model and the simulation model, and the resource calling module is used for calling the probability model and the simulation model. According to the present invention, physical attributes of a digital twin model such as hierarchy and function can be established, and while researching, developing and producing a physical device, a communication device manufacturer can perform simulation modeling on the physical device, research, develop and produce the digital twin model, and guide and verify the research and development of the physical device by performing experimental or even destructive experiments on a virtual digital twin model.
A small-diameter single-mode optical fiber, comprising a germanium-doped core layer (1), a first transitional cladding layer (2), a second transitional cladding layer (3) and an outer quartz cladding layer (8), which are sequentially arranged from inside to outside in the radial direction, wherein the refractive index of the first transitional cladding layer (2) is less than that of the germanium-doped core layer (1), and is greater than that of the second transitional cladding layer (3); and the relative refractive index difference of the first transitional cladding layer (2) linearly decreases from inside to outside in the radial direction in a first polynomial form, and the relative refractive index difference of the second transitional cladding layer (3) linearly decreases from inside to outside in the radial direction in a second polynomial form. The first transitional cladding layer (2), the relative refractive index difference of which linearly decreases in the first polynomial form, and the second transitional cladding layer (3), the relative refractive index difference of which linearly decreases in the second polynomial form, are designed around the germanium-doped core layer (1), such that a waveguide structure having two smoothly transitional cladding layers is formed, and the capability of the small-diameter optical fiber resisting external disturbance is enhanced; and smooth transition between the germanium-doped core layer (1) and the outer quartz cladding layer (8) is realized, such that stress between core packages is reduced, and micro cracks in the optical fiber caused by the stress are reduced, thereby improving the long-term reliability of the optical fiber.
A multiband attenuation flattened fiber, comprising a central gradient core layer (1), a flattened core layer (2), a transition core layer (3), a flattened suppression cladding layer (4), and a quartz cladding layer (5) which are sequentially arranged from inside to outside in a radial direction. The refractive index of the central gradient core layer (1) is less than the refractive index of the flattened core layer (2), the refractive index of the flattened core layer (2) is greater than the refractive index of the transition core layer (3), and the refractive index of the transition core layer (3) is greater than the refractive index of the flattened suppression cladding layer (4); from inside to outside in the radial direction, a relative refractive index difference of the central gradient core layer (1) is increased in a first polynomial line shape, and a relative refractive index difference of the transition core layer (3) is decreased in a second polynomial line shape; the central gradient core layer (1), the flattened core layer (2) and the flattened suppression cladding layer (4) are doped with germanium, or the central gradient core layer (1) and the flattened suppression cladding layer (4) are doped with fluorine, thereby solving the problem of large multiband attenuation flatness in the related art.
The present invention relates to the field of optical communications, and in particular, to an optical interconnection method and system based on optical cells. The method mainly comprises: intra-domain FDM convergence units in each optical cellular unit encapsulate intra-domain data services into service particles according to the size of intra-domain reference service particles, and modulate the service particles to one or more intra-domain reference radio frequency bandwidths and reference carrier channels in an electric domain and an optical domain; intra-domain optical cross units perform selection and cross scheduling on optical channels in optical input and output ports of the connected intra-domain FDM convergence units, an inter-domain electric conversion unit and the interconnected intra-domain optical cross units according to intra-domain spectrum channel planning and the size of the reference carrier channels; and the inter-domain electric conversion unit performs re-encapsulation and/or communication specification conversion on the service particles scheduled by the intra-domain optical cross units, and then sends the service particles to an adjacent optical cellular unit bridge-connected by means of the inter-domain electric conversion unit. According to the present invention, the flexibility and utilization efficiency of intra-domain network resource configuration can be optimized according to service characteristics in an optical cellular unit domain.
H04B 10/516 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs - Détails du codage ou de la modulation
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p.ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
The present invention relates to a photoelectric composite connector and an adaptor. The photoelectric composite connector comprises: a body, wherein a cavity passing from front to back is provided in the body, a ferrule is mounted in the cavity, at least two terminal grooves are also provided in the body, the two terminal grooves are located on the same side of the cavity, an isolation wall is provided between the two terminal grooves, an opening is also provided in the outer surface of the body, the opening and the terminal grooves are located on the same side of the cavity, the opening communicates with the terminal grooves, and the opening passes through a front end surface of the body; and at least two conductive terminals correspondingly accommodated in the terminal grooves, respectively, wherein the conductive terminals are exposed to the opening. According to the photoelectric composite connector and the adaptor of the invention, both optical transmission and electrical transmission can be achieved by means of one connector, and the problems of complex operation and large apparatus size caused by respectively providing an optical connector and an electrical connector to achieve optical and electrical connection and transmission are solved.
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
H01R 13/631 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p.ex. moyens pour aligner ou guider, leviers, pression de gaz pour l'engagement uniquement
H01R 13/502 - Socles; Boîtiers composés de différentes pièces
An optical splitter module box and a fiber distribution box. The optical splitter module box comprises a box body, and, arranged in the box body, an optical splitter and first sealing rings. The optical splitter comprises an input end and output ends. One end of the box body is provided with first adapters, the output ends of the optical splitter being connected to the first adapters. The other end of the box body is provided with an input port, the input port being used for leading out the input end of the optical splitter. The one end of the box body is provided with first fixing positions, the first adapters being fixed to the box body by means of the first fixing positions and being sealed with the box body by means of the first sealing rings. The optical splitter module box can not only improve waterproofing, but also facilitate operation.
An optical fiber function box and an optical fiber function box module. The optical fiber function box comprises a box body; the box body has a first end; the first end comprises at least two stages; end faces of the at least two stages are respectively used for arranging adapters. The optical fiber function box helps to increase port density and reduce the volume of the box body.
The present invention relates to a network virtualization system structure and a virtualization method. A network virtualization system structure part mainly comprises a physical space, a virtual space, and an application space, wherein the physical space comprises a computational resource, a storage resource, and a transmission resource and implements fusion of the computational, storage and transmission resources, and the physical space further reports device resource state data to the virtual space; the virtual space implements virtualization of the resourced and describes same in a virtualization model so as to present the virtualization model to the application space; the virtual space, upon receiving a demand issued by the application space, further issues a demand instruction to a specific physical device or virtual device for execution; the application space obtains the virtualization model described by the virtual space and provides same for each business scene; the application space further accepts the demand, integrates the demand, and issues same to the virtual space. According to the present invention, depth fusion of the storage and transmission resources may be supported, and global optimal overall scheduling of resources is supported.
The present invention relates to a quick-connect adapter, a protection box, and a connector assembly. The adapter comprises: a clamp body, the clamp body being provided with a mating portion for mating with a connector, an insertion cavity being provided in the mating portion, and the mating portion being provided with a through slot running through the wall thereof; and a movable protrusion, fixedly provided on the clamp body. When the connector is inserted into the insertion cavity and a notch of the connector corresponds to the movable protrusion, the movable protrusion can be moved into the notch of the connector, so that the connector can be inserted into the insertion cavity; when the connector is inserted into the insertion cavity and the notch of the connector does not correspond to the movable protrusion, the movable protrusion blocks the connector from being inserted into the insertion cavity. It can be ensured that when the connector is inserted into the adapter, the connector can be aligned with the adapter and smoothly inserted into the adapter; blind insertion of the connector can be supported, thereby realizing efficient and rapid link construction.
A modular optical cable assembly and a networking topological structure. An embodiment comprises: a first main connection end (1) is provided with a plurality of first ports (10), a second main connection end (2) is provided with a plurality of second ports (20) in one-to-one correspondence with the first ports (10), and a first branch connection end (3) is provided with at least one third port (30); optical fibers (40) in an optical cable (4) are connected according to the following rules: the first ports (10) are numbered according to a set sequence, each first port (10) is connected to an optical fiber (40), the other ends of the optical fibers (40) corresponding to a plurality of first ports (10) having earliest numberings are connected one-to-one with the third port (30), and the other ends of the optical fibers (40) corresponding to the remaining first ports (10) are connected in order to the second ports (20) starting from the first second port (20). Only one material is present, optical cable (4) is not repeatedly laid on a cable laying path, the problem where the optical cable (4) needs to be replaced to build a network due to cable laying positions being disturbed is prevented, maintenance, management, and construction costs are reduced, and construction efficiency is improved.
Disclosed in the present invention are a calculation method and apparatus for searching for a cross-domain path. The calculation method comprises: searching for a first path from a single domain in which a source network element is located to a single domain in which a destination network element is located, and combining network elements and paths in single domains on the first path into a network topology; clipping the network topology according to the levels of the single domains in which the network elements in the single domains are respectively located, and the paths; after clipping is performed, combining the remaining network elements in the network topology to form a cross-domain path searching matrix from the source network element to the destination network element; and calculating the shortest path from the source network element to the destination network element in the cross-domain path searching matrix. The present invention provides a method for acquiring the shortest cross-domain path in a global topology matrix, and network elements in a network topology are clipped by means of clipping a path searching matrix, such that the problem of it not being possible to effectively obtain the shortest cross-domain path by means of single-domain routing splicing is solved, and the path searching efficiency is improved, and a single domain does not perceive a cross-domain service, thereby facilitating the management of a single-domain service and the cross-domain service.
An optical modulation apparatus and a modulation method, relating to the technical field of communications. The apparatus comprises a modulation unit and a control unit; the modulation unit comprises a beam splitter, a coupler, an MZ modulator and a monitoring optical detector that are sequentially connected in an optical path. An optical path separated by the beam splitter is provided with a phase shifter for changing the phase of an optical signal. The control unit is in signal connection with the monitoring optical detector, the phase shifter and the MZ modulator, respectively, and is used for performing low-pass filtering on a signal of the monitoring optical detector to obtain a target low-frequency signal; the control unit is also used for, according to the signal of the monitoring optical detector and the target low-frequency signal, alternately adjusting the voltage of a bias electrode of the MZ modulator and the voltage of the phase shifter, so that the target low-frequency signal is minimized. The present invention can improve the extinction ratio.
G02F 1/21 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur par interférence
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
32.
INTELLIGENT CONTROL METHOD, APPARATUS AND SYSTEM FOR OPTICAL NETWORK
The present application relates to an intelligent control method, apparatus and system for an optical network. The method comprises: a controller analyzes network survivability on the basis of whole network topology information and service connection information, obtains and issues survival data to an ASON control plane node for storage; when a network link failure occurs, a source node of a failed service in the ASON control plane node establishes rerouting connection to failed links according to the survival data, and reports a rerouting connection establishment result to the controller; and the controller updates a failed service recovery state according to the rerouting connection establishment result, performs re-optimization calculation on the failed link that fails to recover to obtain a new rerouting connection path, and sends the new rerouting connection path to the source node of the failed service so as to perform service recovery on the failed link that fails to recover. In the present invention, centralized control of the controller is combined with a distributed control technique of the ASON control plane node, so that the survivability of an optical network is effectively improved.
The present invention relates to the technical field of broadband terminal device networking, and provides a method and apparatus for managing a three/four-address router and an attach device thereof. The method involves more than one of a configuration protocol message, a network address table, an MAC table, and a network bridge address table, and comprises: obtaining the configuration protocol message, and if no same MAC address is matched in the network bridge address table according to the configuration protocol message, matching a different MAC address in the network address table according to an IP address of the configuration protocol message; if a different MAC address is matched in the network address table according to the IP address of the configuration protocol message, updating an MAC address in the configuration protocol message to a row record corresponding to the different MAC address matched in the network address table; and if the different MAC addresses matched in the network address table according to the IP address of the configuration protocol message matches a same MAC address in the MAC table, obtaining an access port corresponding to the same MAC address matched in the MAC table, so as to identify a device.
H04L 61/103 - Correspondance entre adresses de types différents à travers les couches réseau, p.ex. résolution d’adresse de la couche réseau dans la couche physique ou protocole de résolution d'adresse [ARP]
H04L 45/745 - Recherche de table d'adresses; Filtrage d'adresses
34.
CHROMATIC DISPERSION COMPENSATION METHOD AND SYSTEM FOR LIGHT INTENSITY INFORMATION OF SYNTHESISED SINGLE SIDEBAND SIGNALS
Disclosed in the present invention is a chromatic dispersion compensation method for light intensity information of synthesised single sideband signals, comprising: determining a chromatic dispersion compensation transfer function, and assigning a value to the chromatic dispersion compensation transfer function; performing inverse Fourier transform on the assigned chromatic dispersion compensation transfer function to obtain a digital filter tr(2n) with a chromatic dispersion compensation function containing 2ntap coefficients; on the basis of a preset number k of digital filter taps, implementing extraction and combination of the effective tap coefficients for the obtained digital filter tr(2n) with the chromatic dispersion compensation function in order to generate a new digital filter te(k); and performing a real-time convolution operation on the new digital filter te(k) and the input data stream of the light intensity information, and outputting a result of the real-time operation to obtain a chromatic dispersion compensated synthesised single sideband signal. The present invention greatly reduces the complexity of performing chromatic dispersion compensation on synthesised single sideband signals. Also provided in the present invention is a corresponding chromatic dispersion compensation system for light intensity information of synthesised single sideband signals.
H04B 10/2513 - Dispositions spécifiques à la transmission par fibres pour réduire ou éliminer la distorsion ou la dispersion due à la dispersion chromatique
The present invention relates to an outdoor waterproof optical fiber connector, which comprises: a main body, an optical fiber being accommodated within the main body, and the main body having a flexible locking arm; a first conversion component, the first conversion component comprising a first outer casing sleeved outside of the main body and a first directional ring used for matching with an adapter, the first directional ring being installed within the first outer casing, and the first directional ring having a first locking part that cooperates with the flexible locking arm; and a second conversion component, the second conversion component comprising a second outer casing sleeved outside of the main body and a seconding directional ring used for matching with an adapter, the second directional ring being installed within the second outer casing, and the second directional ring having a second locking part that cooperates with the flexible locking arm; cross sections of the first directional ring and the second directional ring have different shapes, and the first conversion component or the second conversion component can be sleeved on the main body in alternation, reducing early stage investigation and material management costs.
The present invention relates to a MAC address synchronization method and apparatus for an OLT device. The method mainly comprises: a stacking system completes selecting master and standby control boards, and advertises information of the master control board to all stacking devices in the stacking system in a multicast manner; the stacking devices register and subscribe to MAC address entry events to the master control board; forwarding planes of the stacking devices report, to a control pane of the master control board, MAC address entry events to be processed in batches; the control plane of the master control board performs local MAC address entry processing on said MAC address entry events according to the time sequence, and sends said MAC address entry events in a multicast manner to all the stacking devices that subscribe to the corresponding events; upon receipt of said MAC address entry events, the stacking devices perform local MAC address entry processing. The present invention can ensure the synchronization timing of a MAC address table, solves the problem in the prior art of the abnormal time sequence, can ensure the normal operation of MAC aging, and can also flexibly extend an uplink port of the system to achieve the purpose of newly adding the stacking device.
Disclosed in the present invention are an upgrade method and apparatus under mesh networking. The method comprises: after receiving a sub-route upgrade request submitted by a browser, a main route generating a temporary authentication token and a temporary port of each sub-route, and transmitting same to each sub-route; after receiving an instruction of the main route, each sub-route starting the temporary port to wait for the browser to transmit an upgrade file, and returning start success information to the main route; after receiving the start success information, the main route sending the temporary authentication token, a sub-route IP and the temporary port to the browser, and the browser transmitting the upgrade file to the corresponding sub-route; and the sub-route performing authentication on the basis of the temporary authentication token and a browser IP, and performing an upgrade on the basis of the upgrade file after the authentication succeeds. In the present invention, an upgrade file from a browser to a sub-route is directly transmitted by the browser, such that an upgrade delay is greatly reduced; and the transmission of the upgrade file is separated from that of a control command, such that a one-to-many sub-route parallel upgrade mode is realized, and the upgrade efficiency is improved.
A clamping slot (100) for wiring in a building, and a method for using same. The clamping slot (100) comprises: a base plate (1), which is configured to be fixed on a wall; and two side walls (2), the two side walls (2) being respectively connected to two opposite sides of the base plate (1), and the two side walls (2) extending, toward the same side, from joints between the two side walls (2) and the base plate (1), such that the two side walls (2) and the base plate (1) together enclose a slot channel (3) for accommodating an optical cable (5), wherein the slot channel (3) extends in the lengthwise direction of the base plate (1). An opening (4) in the lengthwise direction of the base plate (1) is further formed between the two side walls (2), and the opening (4) is used to allow the optical cable (5) to enter the slot channel (3); and at least one section of each side wall (2) is provided with a plurality of gaps (22) such that the clamping slot (100) forms a bendable portion (11), wherein the gaps (22) penetrate the side walls (2) in the width direction of the base plate (1), and the gaps (22) penetrate the side walls (2) in the height direction of the base plate (1). The clamping slot (100) can protect the optical cable (5), such that the optical cable (5) is prevented from being excessively bent, and the stress formed by the clamping slot (100) in the process of bending is reduced.
A flexible optical fiber ribbon and an optical cable. The flexible optical fiber ribbon comprises several core ribbon groups (1), wherein the core ribbon groups (1) are configured in parallel, and each core ribbon group (1) comprises three optical fiber units (2); the three optical fiber units (2) of each core ribbon group (1) are configured in parallel, the optical fiber units (2) located on two sides each comprise one optical fiber (3), and the optical fiber unit (2) located in the middle comprises at least one optical fiber (3), which is configured to be in parallel and connected; two adjacent core ribbon groups (1) and two adjacent optical fiber units (2) in each core ribbon group (1) are respectively connected by means of a plurality of first connecting portions (4), which are arranged at intervals in the lengthwise direction of the optical fibers (3); and by taking, as a reference plane (A), a plane passing through the axes of two adjacent optical fibers (3), each of the first connecting portions (4) comprises two connecting units (40) respectively located above and below the reference plane (A), and a buffer cavity (5) is formed between two adjacent optical fibers (3) and between the two connecting units (40) above and below the reference plane (A). The problem in the related art of the poor flatness of an optical fiber ribbon caused by resin being prone to being damaged when an optical fiber (3) ribbon is bent in a width direction can thus be solved.
G02B 6/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres la position relative des fibres étant la même aux deux extrémités, p.ex. pour transporter des images le faisceau de fibres ayant la forme d'une plaque
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
An optical fiber ribbon and an optical cable. The optical fiber ribbon comprises at least four optical fiber units. Each optical fiber unit comprises at least one optical fiber (1). The optical fiber units are arranged in parallel, and every two adjacent optical fiber units are connected by means of a plurality of first connecting parts (2) intermittently provided along the length direction of the optical fiber (1), so that the optical fiber units form an optical fiber ribbon as a whole. Moreover, the optical fiber ribbon has two states: in a first state, the optical fiber units are sequentially connected to form a cylinder, and a central gap of the cylinder can receive a part of each optical fiber unit; and when a part of each optical fiber unit of the cylinder moves to the central gap of the cylinder, the optical fiber ribbon switches from the first state to a second state. The present invention can solve the problem of micro-bending of optical fibers caused by the increase in the possibility that optical fibers are broken during a process of winding an optical fiber ribbon into a bundle and the deterioration of lateral pressure characteristics between optical fibers due to the fact that the adhesion between optical fibers in an optical fiber ribbon is cut off.
G02B 6/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres la position relative des fibres étant la même aux deux extrémités, p.ex. pour transporter des images le faisceau de fibres ayant la forme d'une plaque
A flexible optical fiber ribbon and an optical cable. The flexible optical fiber ribbon comprises several core ribbon groups (1), wherein the core ribbon groups (1) are configured in parallel, and each core ribbon group (1) comprises three optical fiber units (2); the three optical fiber units (2) of each core ribbon group (1) are configured in parallel, the optical fiber units (2) located on two sides each comprise one optical fiber (3), and the optical fiber unit (2) located in the middle comprises at least one optical fiber (3), which is configured to be in parallel and connected; two adjacent core ribbon groups (1) and two adjacent optical fiber units (2) in each core ribbon group (1) are respectively connected by means of a plurality of first connecting portions (4), which are arranged at intervals in the lengthwise direction of the optical fibers (3); and by taking, as a reference plane (A), a plane passing through the axes of two adjacent optical fibers (3), each of the first connecting portions (4) comprises two connecting units (40) respectively located above and below the reference plane (A), and a buffer cavity (5) is formed between two adjacent optical fibers (3) and between the two connecting units (40) above and below the reference plane (A). The problem in the related art of the poor flatness of an optical fiber ribbon caused by resin being prone to being damaged when an optical fiber (3) ribbon is bent in a width direction can thus be solved.
G02B 6/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres la position relative des fibres étant la même aux deux extrémités, p.ex. pour transporter des images le faisceau de fibres ayant la forme d'une plaque
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
An optical fiber ribbon and an optical cable. The optical fiber ribbon comprises at least four optical fiber units. Each optical fiber unit comprises at least one optical fiber (1). The optical fiber units are arranged in parallel, and every two adjacent optical fiber units are connected by means of a plurality of first connecting parts (2) intermittently provided along the length direction of the optical fiber (1), so that the optical fiber units form an optical fiber ribbon as a whole. Moreover, the optical fiber ribbon has two states: in a first state, the optical fiber units are sequentially connected to form a cylinder, and a central gap of the cylinder can receive a part of each optical fiber unit; and when a part of each optical fiber unit of the cylinder moves to the central gap of the cylinder, the optical fiber ribbon switches from the first state to a second state. The present invention can solve the problem of micro-bending of optical fibers caused by the increase in the possibility that optical fibers are broken during a process of winding an optical fiber ribbon into a bundle and the deterioration of lateral pressure characteristics between optical fibers due to the fact that the adhesion between optical fibers in an optical fiber ribbon is cut off.
G02B 6/08 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres la position relative des fibres étant la même aux deux extrémités, p.ex. pour transporter des images le faisceau de fibres ayant la forme d'une plaque
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
43.
ARTIFICIAL INTELLIGENCE MODEL ONLINE TRAINING METHOD AND SYSTEM
An artificial intelligence model online training method and system. The system comprises: a reasoning system which is a service system of an AI model application, is responsible for arrangement and reasoning operation of a model, and comprises an AI arrangement device, a service-level AI engine, and a service-level AI data pool; a terminal which is an object that the reasoning system manages and cooperates with, cooperates with a network manager to perform intelligent network operation and maintenance, and comprises a terminal-level AI engine and a terminal-level AI data pool; and a training pre-release system which is responsible for model development, model training, and model verification pre-release, and comprises a pre-release environment, AI model development, and a platform-level AI data pool. By constructing the artificial intelligence model online training method and system, real accuracy and safety can be accurately measured when an artificial intelligence model is trained; moreover, the accuracy of the model is continuously kept by means of an online training mechanism during reasoning, and the model upgrading cost is reduced.
The present disclosure relates to the technical field of packet time synchronization, and provides a packet synchronization channel failure handling method and device. The method comprises: a port in a Slave state detects a packet channel failure event; and the port is separated from a master decision domain time source information set, and performs state decision on the basis of separate slave decision domain time source information set and the master decision domain time source information set, wherein a result is a monitoring state or a master clock state. The present disclosure addresses the issue of a lack of handling schemes after the packet synchronization channel failure event, associates a synchronization OAM event with a synchronization path decision, and improves the reliability of the operation of a synchronization network.
A flexible optical fiber management system and a network access method. The system comprises: a box, the box being successively divided into, from one side to the other side: a first region (A), a connection region (6), and a second region (B). The connection region (6) is located between the first region (A) and the second region (B); the first region (A) comprises a first mounting region (3) for mounting a first optical cable assembly and a first splicing region (8) for splicing a first optical cable, and the first splicing region (8) is arranged corresponding to the first mounting region (3); the second region (B) comprises a second mounting region (4) for mounting a second optical cable; the connection region (6) is used for communicating the second optical cable with the first optical cable, wherein the connection region (6) comprises multiple working positions (61) for communicating the first optical cable with the first optical cable and multiple storage places (62) for storage. Other users who are using a network are not required to be disconnected from the network, and a first tail fiber of a user who is disconnected from the network can be stored at the storage position (62) next to the first tail fiber, such that re-provisioning of subsequent services is facilitated.
The present invention provides a method, an apparatus and a device for accessing channels across OLT slices, and a storage medium. Said method comprises: upon receipt of a multicast join request corresponding to a logical slice and sent by an ONU, forwarding the multicast join request to a plurality of content providing platforms corresponding to the logical slice; on the basis of the multicast join request, respectively operating multicast forwarding table entries of a plurality of physical slices corresponding to the plurality of content providing platforms; and upon receipt of a multicast data stream which is issued by a target content providing platform on the basis of the multicast join request, sending the multicast data stream to the ONU on the basis of the multicast forwarding table entries. By means of the present invention, when multicast data on different content providing platforms is forwarded for an ONU which subscribes to a plurality of content providing platforms under a logical slice, forwarding planes of physical slices corresponding to the different content providing platforms are multiplexed, achieving the service requirements for the same ONU to access channels of IPTV servers of different content service providers.
An optical fiber cable, comprising several optical fibers (1) and cladding layers (2). The several optical fibers (1) are passed through a mold cavity of a mold injected with a resin for the cladding layers (2) to be formed on the exterior of the optical fibers (1). The optical fiber cable also comprises a connecting section (3). The several optical fibers (1) are distributed at an interval in the linear direction, the optical fibers (1) are each cladded by the evenly-thick cladding layers (2), the cladding layers (2) of adjacent optical fibers (1) are connected by the connecting section (3), thus providing the optical fiber cable with a corrugated structure on both sides in the lengthwise direction. The thickness of the connecting section (3) is 1/3 to 1/2 of the diameter of the cladding layers (2). Moreover, the connecting section (3) and the cladding layers (2) are made of the resin of which the Young's modulus is 1 MPa to 100 MPa. The optical fiber cable is bendable in the widthwise direction by means of the flexible distension of the connecting section (3). The connecting section (3) is soft, thus allowing the optical fiber cable to be bendable in the widthwise direction without resulting in attenuation and loss, and allowing the optical fiber cable to be applicable in a narrow gap and also applicable in a small hole.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
B29C 41/30 - Façonnage par revêtement d'un moule, noyau ou autre support, c. à d. par dépôt de la matière à mouler et démoulage de l'objet formé; Appareils à cet effet pour la fabrication d'objets de longueur indéfinie en incorporant des éléments ou des couches préformées, p.ex. moulage autour d'inserts ou sur des objets à recouvrir
mnmn of the optical fiber; when the gain of each of the optical fibers is a non-positive value, or there is no optical fiber, adding optical fibers between the network elements on the i-th long chain and the network elements on the loop where the i-th long chain is located; according to the added optical fibers, switching services passing through a first network element and a second network element on the i-th long chain; when the gains of all the optical fibers are not all non-positive values, according to the gain of each of the optical fibers, switching services passing through the optical fibers between the network elements of the i-th long chain and the network elements of the loop where the i-th long chain is located; and sequentially switching services passing through the optical fibers between the network elements of each long chain and the network elements of the loop where the long chain is located, so as to complete looping optimization of access layer devices of PTN networking. The present invention can improve the looping rate, thereby improving the network security.
Disclosed in the present invention are a high-speed optical signal generating device and a control method therefor. The high-speed optical signal generating device comprises a tunable laser, a wavelength multiplier, a driver-modulator array, a baseband signal generator and a main controller; an optical output end of the tunable laser is connected to an optical input end of the wavelength multiplier, an optical output end of the wavelength multiplier is connected to an optical input end of the driver-modulator array, and an electrical input end of the driver-modulator array is connected to an output end of the baseband signal generator; and a control end of the wavelength multiplier, a control end of the driver-modulator array and a control end of the baseband signal generator are each connected to the main controller. In the present invention, a wavelength bidirectional translator is used to generate two frequency-locked wavelengths at the same time, and a number N of parallel wavelength bidirectional translators are combined to work under different driving frequencies, to realize one laser input, 2N+1 equally-spaced multi-wavelength outputs and continuous and adjustable frequency spaces and center wavelengths.
H04B 10/50 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs
H04B 10/516 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs - Détails du codage ou de la modulation
50.
OPTICAL SIGNAL SELECTION SCHEDULING APPARATUS AND METHOD
An optical signal selection scheduling apparatus and method, which relate to the technical field of optical communications. The optical signal selection scheduling apparatus comprises N input ports and M output ports, and is formed by means of stacking 2M + 1 layers of planar optical array elements layer by layer. Each layer of planar optical array elements at least has one of the functions of wave splitting, collimation, switching, wave guiding and wave combination; and functional elements of each layer of planar optical array elements are arranged in N + 1 columns, and each column includes K functional elements, which are arranged in a line and do not affect each other. The planar optical array elements have the characteristics of lightness, thinness and planarization. The element size can be greatly decreased, the system complexity can be reduced, the insertion loss and interchannel crosstalk of an optical device can be reduced, and the integration of high-dimensional wavelength selective cross devices can be realized.
A connector (1) and an optical fiber connection assembly, relating to optical fiber communications. The connector (1) comprises: a connector body (10), comprising an insertion portion (101), the insertion portion (101) being provided with a first protrusion (102) that allows engagement with a matching adapter (2); an elastic member (11), sleeved on the insertion portion (101); an unlocking ring (12), sleeved on the insertion portion (101) and capable of moving along the axial direction of the insertion portion (101), the unlocking ring (12) being used for compressing the elastic member (11) during engagement with the adapter (2) and making the elastic member (11) provide a driving force for driving the unlocking ring (12) to press against the engagement position; and a connector jacket (13), sleeved on the insertion portion (101), the connector jacket (13) being capable of moving along the axial direction of the insertion portion (101) and capable of driving the unlocking ring (12) to compress the elastic member (11) to disengage the unlocking ring (12) from the engagement position. The connector (1) can ensure strong tensile strength during engagement with the adapter (2).
A connector (1) and an optical fiber connection assembly, relating to optical fiber communications. The connector (1) comprises: a connector body (10), comprising an insertion portion (101), the insertion portion (101) being provided with a first protrusion (102) that allows engagement with a matching adapter (2); an elastic member (11), sleeved on the insertion portion (101); an unlocking ring (12), sleeved on the insertion portion (101) and capable of moving along the axial direction of the insertion portion (101), the unlocking ring (12) being used for compressing the elastic member (11) during engagement with the adapter (2) and making the elastic member (11) provide a driving force for driving the unlocking ring (12) to press against the engagement position; and a connector jacket (13), sleeved on the insertion portion (101), the connector jacket (13) being capable of moving along the axial direction of the insertion portion (101) and capable of driving the unlocking ring (12) to compress the elastic member (11) to disengage the unlocking ring (12) from the engagement position. The connector (1) can ensure strong tensile strength during engagement with the adapter (2).
The present invention provides a spectrum allocation method, apparatus and device for a routing, and a readable storage medium. The method comprises: determining a target routing according to a preset routing policy; respectively performing spectrum pre-allocation on the target routing on the basis of all feasible pre-allocation solutions, and respectively calculating spectrum adjacency coefficients of the target routing after spectrum pre-allocation; and performing spectrum allocation on the target routing according to the pre-allocation solution corresponding to the maximum spectrum adjacency coefficient. In the present invention, on the basis of an inverse proportion relationship between a spectrum adjacency coefficient and a spectrum fragment rate, the spectrum adjacency coefficient corresponding to each feasible pre-allocation solution is calculated first before performing spectrum allocation on a routing, then spectrum allocation is performed on the routing according to the pre-allocation solution corresponding to the maximum spectrum adjacency coefficient, such that the spectrum fragment rate can be effectively reduced, and thus the utilization rate of spectrum resources of the entire optical network is improved.
The present invention provides a gray release method, apparatus and device, and a readable storage medium. The method comprises: adding a gray label and an allowed calling ratio to a service description YAML file of a gray micro-service, the gray micro-service comprising a gray micro-service implemented based on a base mode and a gray micro-service implemented based on a sidecar mode; using the gray label and the allowed calling ratio as registration information to complete registration of the gray micro-service, and setting the gray micro-service to be in a non-callable state; setting a calling control strategy of the registered gray micro-service, setting the gray micro-service to be in a callable state, and releasing the gray micro-service online. By means of the present invention, unified gray release and strategy control are performed on the gray micro-service implemented based on the base mode and the gray micro-service implemented based on the sidecar mode.
The present invention relates to the technical field of home networking, and provides a network topology management system and method for home networking. In said system, a main routing device works in a routing mode, and the main routing device provides a wired and/or wireless link channel for various terminal devices and sub-routing devices inside a home network to access the home network; the sub-routing devices work in a bridging mode and establish, for a downlink sub-routing device and/or a subordinate terminal device which correspondingly complete access, a link channel with the main routing device in a wired and/or wireless manner; and the sub-routing devices further establish a dedicated management channel with the main routing device for the sub-routing devices to report information of the subordinate terminal device and/or information of the downlink sub-routing device forming an access relationship with the sub-routing devices. The present invention can present a complete and intuitive home network topology structure to users, so that the users can operate and manage devices in the network topology by means of complete topology information.
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p.ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
56.
FULLY DRY NON-METAL FLAME-RETARDANT AND FIRE-RESISTANT OPTICAL CABLE
A fully dry non-metal flame-retardant and fire-resistant optical cable, which relates to the field of optical communication cables, and which comprises an optical unit (1), an armor layer (2) and a flame-retardant layer (3). An optical fiber channel (20) is formed in the armor layer (2), and the armor layer (2) is made of a ceramic glass fiber material. The optical unit (1) is provided in the optical fiber channel (20). The flame-retardant layer (3) covers the outside of the armor layer (2). Since the optical fiber channel (20) is formed by the armor layer (2), the armor layer (2) is a fire-resistant layer closest to the optical unit (1). Moreover, since the armor layer (2) is made of a ceramic glass fiber material, when the optical cable catches on fire and burns, a ceramic coating in glass yarn and glass fibers are cured together to form a strong and dense armor layer (2) reinforced by a layer of the glass fiber, which is able to isolate all burning residue on the outer layer of the armor layer (2); and during the cooling process of the optical cable, even if the thermal expansion and contraction of the outer layer material of the armor layer (2) generate stress release, the hard armor layer (2) will not shrink under the squeezing of the outer layer material. Therefore, the optical fiber of the optical unit (1) will not be squeezed to then result in fiber breakage.
An air-blown optical fiber cable, relating to the technical field of optical fiber cable manufacturing. The air-blown optical fiber cable comprises a cable core (1), a loose tube (2), a strengthening layer (3), and an outer jacket (4). The loose tube (2) is sleeved on the cable core (1); the strengthening layer (3) is mesh-shaped and is wrapped around the loose tube (2); the outer jacket (4) is wrapped around the strengthening layer (3); at least a partial region of the outer jacket (4) forms a drag reduction structure (40); the drag reduction structure (40) comprises a plurality of protrusions (400) and a plurality of recesses (401), wherein the protrusions (400) and the recesses (401) are alternately connected to each other, and the recesses (401) extend into the mesh of the strengthening layer (3); first gaps (402) are formed between every two adjacent protrusions (400) and a recess (401) located therebetween, and second gaps (403) is formed between every two adjacent recesses (401) and a protrusion (400) located therebetween; the strengthening layer (3) extends into the second gaps (403) and is connected to the protrusions (400). The first gaps (402) do not contact a micro-tube, and merely the protrusions (400) contact the micro-tube, such that a contact area between the outer jacket (4) and the micro-tube is reduced, thus reducing the surface friction of an optical fiber cable.
Disclosed in the present invention is an automatic bias control apparatus for a direct-modulation and direct-detection optical modulator. Two independent phase controllers are provided in a Mach-Zehnder modulator and are connected in series to high-speed phase shifters in the modulator; independent phase control signals are respectively loaded on the two phase controllers to control a static phase difference between two modulation arms; moreover, a monitoring detector is present for monitoring the magnitude of output optical power. A locking effect of an automatic bias control solution for a direct-modulation and direct-detection optical modulator provided in the present invention is irrelevant to the linearity of the phase controllers, thus this solution can be adapted to conventional lithium niobate modulators and can also applicable to modulators made of a semiconductor base material, such as modulators made of a silicon-based or III-V material; the locking precision of the automatic bias control solution for a direct-modulation and direct-detection optical modulator provided in the present invention is not greatly affected by the stability of optical power of a laser and the consistency of the responsivity of a detector, thus the locking precision is high. The present invention also provides a corresponding automatic bias control method.
G02F 1/03 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des céramiques ou des cristaux électro-optiques, p.ex. produisant un effet Pockels ou un effet Kerr
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
59.
METHOD AND DEVICE FOR FLEXE LOW-SPEED SERVICE PROCESSING
The present invention relates to the field of transmission networks. Disclosed are a method and device for FlexE low-speed service processing. The method comprises: determining, on the basis of the size of minimal granularity services that need to be carried, the number of slots into which a FlexE frame needs to be divided, and dividing multiple consecutive FlexE frames as a whole into slots, thus allowing each of the divided slots to carry one of the minimal granularity services, and allowing the total number of payload code blocks of the multiple FlexE frames to be divided evenly according to the number of slots. A client service is mapped to the slots of the FlexE frames and is transmitted outwards via at least one physical channel. The method in the present invention for FlexE low-speed service processing satisfies a demand of an operator with respect to a low-speed service and prevents the wastage of a large amount of bandwidth.
H04J 3/16 - Systèmes multiplex à division de temps dans lesquels le temps attribué à chacun des canaux au cours d'un cycle de transmission est variable, p.ex. pour tenir compte de la complexité variable des signaux, pour adapter le nombre de canaux transmis
Disclosed are a smart early warning method and apparatus for optical channel performance degradation, a device, and a storage medium. The method comprises: by means of acquiring performance data of an optical channel to be monitored within a telecommunications transport network, building a key performance indicator (KPI) performance prediction model for the optical channel according to the performance data; according to the KPI performance prediction model, performing cycle trend prediction on the performance of the optical channel to obtain a performance trend prediction result; according to the performance trend prediction result, determining whether performance trend degradation occurs in the optical channel, and when performance trend degradation occurs, carrying out early warning, which enables targeted modeling on a KPI performance indicator of the optical channel of the transport network, and ensures that the model maintains relatively good prediction accuracy from start to finish during the long-term application of engineering. At the same time, predicting and analyzing the long and short-term performances and trend of the KPI performance indicator of the optical channel on the basis of the model achieves the advanced perception and automated pre-warning of the performance degradation of the optical channel.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmission; Dispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
61.
UNIVERSAL TRAINING METHOD AND SYSTEM FOR ARTIFICIAL INTELLIGENCE MODELS
A universal training method and system for artificial intelligence models, relating to the field of artificial intelligence. The method comprises: storing source code of an artificial intelligence model to be trained and sample data required for the training in a model code repository (S1); according to the gradient characteristics of the source code, matching, from a mirror image repository, a training mirror image corresponding to the artificial intelligence model (S2); according to the matched training mirror image, matching, from a compute resource cluster, a compute node corresponding to the training mirror image (S3); and starting to train the artificial intelligence model on the matching compute node, and during the training, dynamically adjusting the required compute node according to the characteristics of the artificial intelligence model to complete the training of the artificial intelligence model (S4). The described method can improve the efficiency in training artificial intelligence models and effectively reduces the training costs.
Provided are a method and apparatus for evaluating the performance of a facial recognition algorithm. The method comprises: according to a data characteristic of a real usage scenario to which each facial recognition algorithm is applicable, generating one or more groups of influence factors to be tested; screening a picture base library according to the one or more groups of influence factors to be tested so as to obtain one or more clusters of pictures to be tested; calculating a test result of each facial recognition algorithm in each cluster of pictures to be tested, and establishing an association relationship between the test result and a corresponding influence factor; and according to the test result of the one or more clusters of pictures to be tested and the corresponding influence factor, completing performance evaluation scoring of each facial recognition algorithm that is applicable to the real usage scenario. By means of the method and apparatus, the performance of different algorithms in different scenarios can be efficiently reflected, and a standardized index with a certain reference value is provided for algorithm research and development and purchasing.
Disclosed is a multi-view video view switching method, comprising: upon receiving a view switching request, a terminal checking whether there is an IDR frame within a preset duration of a local buffer content of the terminal for a current view; if so, adding a time point of the IDR frame to the view switching request, and reporting the request to a server; if there is no IDR frame within the preset duration, and the buffer content exceeds the preset duration, adding a time point after the preset duration to the view switching request, and reporting the request to the server; if there is no IDR frame within the preset duration, and the buffer content does not reach the preset duration, adding a time point at a terminal end of the buffer to the view switching request, and reporting the request to the server; and clearing the local buffer of the terminal after the time point in the view switching request reported to the server. The present invention achieves time stamp alignment for different views in multi-view video switching, such that consecutive views before and after a switch are joined in a synchronized manner. Further disclosed is a corresponding multi-view video view switching system.
H04N 21/433 - Opération de stockage de contenu, p.ex. opération de stockage en réponse à une requête de pause ou opérations de cache
H04N 21/231 - Opération de stockage de contenu, p.ex. mise en mémoire cache de films pour stockage à court terme, réplication de données sur plusieurs serveurs, ou établissement de priorité des données pour l'effacement
H04N 21/6587 - Paramètres de contrôle, p.ex. commande de lecture à vitesse variable ("trick play") ou sélection d’un point de vue
H04N 21/8547 - Création de contenu impliquant des marquages temporels pour synchroniser le contenu
64.
SYSTEM AND METHOD FOR IMPROVING UNIFORMITY OF PCVD RAW MATERIAL VAPOR DEPOSITION, AND USE THEREOF
Disclosed are a system and method for improving the uniformity of PCVD raw material vapor deposition, and a use thereof, relating to the technical field of optical fiber preform rod production. The system comprises a liner tube (2), a microwave generator (4) and a holding furnace (3) internally provided with a temperature measurement probe, wherein the holding furnace (3) is sequentially provided with a gas end area (20), a middle end area (21) and a pump end area (22) in an axial direction of the liner tube, and the preset output power of the microwave generator (4) in each area is the same. The system further comprises a PLC control unit (8) configured to determine, on the basis of the set temperature at a real-time position fed back by the temperature measurement probe, the ending position of the gas end area (20) or the starting position of the middle end area (21), the ending position of the middle end area (21) or the starting position of the pump end area (22), change the actual output power of the microwave generator (4) at the starting position of the gas end area (20) and the starting position of the pump end area (22), and keep the changed actual output power constant in the gas end area (20) and the pump end area (22). The system is easy to operate, has highly automated operations, realizes the overall deposition uniformity of a deposition section of the liner tube (2), and effectively reduces the cost of manufacturing a rod.
C03B 37/018 - Fabrication d'ébauches d'étirage de fibres ou de filaments obtenues totalement ou partiellement par des moyens chimiques par dépôt de verre sur un substrat de verre, p.ex. par dépôt chimique en phase vapeur
65.
MULTI-CHIP HEAT-DISSIPATING PACKAGING STRUCTURE AND PACKAGING METHOD
The present invention relates to the technical field of semiconductor packaging and provides a multi-chip heat-dissipating packaging structure and a packaging method. In the structure, an inverted chip is disposed at a concave bottom part of a concave pre-packaging substrate, the concave bottom part of the concave pre-packaging substrate being provided with a first set of pads, and the first set of pads being used for electrically connecting to pins of an inverted formal chip; the first set of pads transfers, by means of a concave sidewall of the concave pre-packaging substrate, electrical characteristics to an end part region of the concave sidewall so as to facilitate electrical connection between the inverted chip and the substrate when the concave pre-packaging substrate is placed upside down on a base plate; a heat-dissipating assembly is further provided on the external surface of the concave bottom part of the concave pre-packaging substrate, and the heat-dissipating assembly is coupled with the bottom part of the inverted chip and is used for dissipating heat produced when the inverted chip is in operation; a normal formal chip is disposed on the base plate, and heat dissipation is carried out by means of the base plate and a packaging cavity. The present invention achieves the efficient heat dissipation of chips and ensures the normal operation of the chips.
The present invention relates to the technical field of optical fiber communications, and disclosed are a single-fiber bidirectional OSC implementation method and device for a wavelength division system. According to the present invention, asymmetric and symmetric single-fiber bidirectional OSC functions are respectively implemented by modifying a connection mode of an OSCAD single disk, i.e., transmissions in OSC receiving and transmitting directions are performed in one fiber core, and it is ensured that the path and length of the OSC reception and transmission are identical. The OSC is used for transmitting a 1588PTP clock; because receiving and transmitting paths are in the same fiber core, it is ensured that the receiving and transmitting paths of the OSC are strictly symmetric and of equal length, so that when performing 1588 clock calculation, an error would not occur due to different optical fiber lengths. Moreover, an asymmetric wavelength division system is further provided with an automatic detection and matching apparatus, so that receiving and transmitting directions of optical paths on two sides can be automatically detected, an appropriate path can be automatically selected, and there is no need to worry about engineering problems caused by human error during use.
1212aaa, using the timestamp correction algorithm to perform time error adjustment. In the present invention, measurement is performed on the basis of a signal timestamp of a source end or a destination end, and a time delay situation is corrected, thereby reducing the influence of a static error in a time synchronization process.
The present application relates to a sintering device and a sintering method for an optical fiber preform soot body. The sintering device comprises a sintering box, a furnace core tube, a heating assembly, a lead rod, a preform feeding mechanism, a first pipe group, and a second pipe group. The furnace core tube and the heating assembly are arranged in the sintering box, the heating assembly forming a heating zone. The lead rod extends into the furnace core tube and is used to connect a preform soot body. The preform feeding mechanism is connected to the lead rod to drive the lead rod to move so that the preform soot body is heated in the heating zone. The first pipe group runs through the walls of the sintering box and the furnace core tube and communicates with an inner cavity of the furnace core tube, and comprises a first intake pipe and a first exhaust pipe. The second pipe group runs through the wall of the sintering box and communicates with an internal cavity of the sintering box, and comprises a second intake pipe and a second exhaust pipe. The present application integrates dehydroxylation, vitrification sintering, and deuteration, and can effectively eliminate a residual gas inside an optical fiber preform, reduce the amount of He used, and eliminate structural defects from the source of optical fiber preform manufacturing, thereby reducing the hydrogen sensitivity of an optical fiber.
Disclosed are an optical fiber connection head, an optical fiber adapter, and an optical fiber connection assembly, relating to the field of optical fiber communication. The optical fiber connection head comprises: an inner bushing comprising a first accommodating cavity, two ends of the inner bushing being provided with a buckle and a clamping claw, respectively; a connector comprising a butt joint part and a cable, which are connected to each other, the cable being accommodated in the first accommodating cavity, and the butt joint part being positioned outside the first accommodating cavity and being connected to the buckle in a clamped manner; a sealing plug sleeved on the cable and connected to the clamping claw in a clamped manner; and a connector jacket which is used for being sleeved on the inner bushing to squeeze the sealing plug, and can be connected to a matched optical fiber adapter. The optical fiber connection head and the optical fiber adapter in the present invention have a good sealing performance and a high universality.
The present invention relates to the technical field of network data forwarding, and disclosed are a home gateway-based service acceleration method and system. The method comprises: configuring an acceleration requirement of a service application by using a terminal device or a home gateway; the terminal device monitoring in real time the started-up, shut down, and foreground and background switching state of the service application, and sending a corresponding message to the home gateway; the home gateway determining, according to a parsed corresponding message, whether to perform or cancel acceleration; if acceleration is performed, adding a service application requiring acceleration to an acceleration queue by configuring a corresponding acceleration rule, so as to implement acceleration; and if acceleration is canceled, deleting the corresponding acceleration rule from the acceleration queue. The present invention can solve the problem in which service acceleration occupies a large quantity of CPU resources of a home gateway, improves the performance of the home gateway, improves user experience for the terminal device, has high flexibility and low usage costs, and meets actual application requirements.
A connector (1) and an optical fiber connection assembly, relating to the field of optical fiber communications, and comprising: a connector main body (10), wherein the connector main body comprises an insertion portion (101), and the opposite two sides of the insertion portion (101) are separately provided with a positioning fastener (102); a fastener assembly, wherein the fastener assembly comprises two elastic suspension arms (11) fixed at the root portion of the insertion portion (101) and located at another opposite two sides of the insertion portion (101), and along an insertion direction, each elastic suspension arm (11) is sequentially provided with an unlocking fastener (111) and a locking fastener (112) that is clamped with a matched adaptor (2); an elastic member (12) inserted into the root portion of the insertion portion (101); and an unlocking ring (13) sleeved on the insertion portion (101), wherein one end of the unlocking ring (13) abuts against the elastic member (12), the other end abuts against the positioning fastener (102), the unlocking ring (13) can move along the axial direction of the insertion portion (101), and when the unlocking ring (13) moves towards the root portion of the insertion portion (101), the two elastic suspension arms (11) can be squeezed, so that the two elastic suspension arms (11) are close to the insertion portion (101). The connector (1) is simple and convenient to operate, and can achieve the highly dense arrangement of pre-connected products.
The present invention relates to the technical field of communications. Disclosed are a path calculation method and system. The path calculation method comprises: calculating K short paths of each service and the total length of the current working paths of all services; and comparing the degree of deviation between the current working path of each service and a shortest path, releasing a resource in the shortest path from the service having a maximum degree of deviation to replace the current working path, and reallocating the current working path to the service to which the released resource belongs, so that the total length of the adjusted current working path is reduced, wherein the shortest path and the reallocated current working path both belong to the K short paths. In the present invention, in the case that resources are limited, the total length of the current working path of the service is shortened as much as possible, thereby improving the overall operation efficiency of the whole network.
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 12/733 - Sélection d’un chemin de longueur minimum ou de nombre de sauts minimum
73.
OPTICAL INTERCONNECTION COMMUNICATION METHOD AND SYSTEM
An optical interconnection communication method and system, relating to the field of high-speed optical interconnection in data centers. The method comprises: a binary bitstream signal to be transmitted being processed by a DSP and then changed to an analog electrical signal; outputting two paths of light by means of a laser, wherein one path serves as an optical carrier of an integrated dual-polarization coherent optical transmitter to modulate the analog electrical signal into a complex optical field signal, and the other path serves as local oscillation light to carry out time delay adjustment; carrying out coherent frequency mixing on the complex optical field signal and the local oscillation light by means of a polarization-independent coherent optical receiver, wherein the polarization state of the local oscillation light is controlled by means of feedback scrambling, so as to prevent the polarization state of the local oscillation light from falling in X and Y directions; and the electrical signal after the frequency mixing being processed by means of the DSP to restore the binary bitstream signal. The present invention is applicable to various types of modulation formats and various types of rates, and can also reduce the cost and the power consumption.
H04B 10/516 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p.ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p.ex. les communications quantiques Émetteurs - Détails du codage ou de la modulation
The present invention relates to the technical field of communications. Disclosed are signal receiving method and system. The signal receiving method comprises: receiving an optical signal carrying service data, and converting the optical signal into a voltage signal, wherein the transmission rate of the service data is within a limited range; performing analog-to-digital conversion on the voltage signal to obtain a sampling signal, wherein the sampling rate being greater than the upper limit of the limited range; performing equalization filtering on the sampling signal according to the transmission rate of the service data; and performing digital-to-analog conversion on the output data subjected to the equalization filtering to obtain recovered data, and outputting the recovered data to a corresponding physical medium attachment interface. According to the present invention, service data at various transmission rates can be received, and the link performance is improved.
A distal-end grounding electrode structure for use in an undersea device, relating to the field of undersea communications and the field of undersea observation, comprising an undersea photoelectric composite cable (1) connected to an undersea device, an electrode main body (2), a grounding cable (3), and a locking structure (5). The electrode main body is sleeved on the undersea photoelectric composite cable; the electrode main body is provided with an accommodating cavity; a cover plate (22) is provided on the electrode main body; the grounding cable is provided on the undersea photoelectric composite cable; the grounding cable extends into the accommodating cavity; the tail end of the grounding cable is connected to a wiring terminal (4); the grounding cable, the cover plate, and the accommodating cavity form a sealing cavity for accommodating the wiring terminal; the locking structure is provided between the undersea photoelectric composite cable and the electrode main body; the locking structure locks the undersea photoelectric composite cable and the electrode main body. The distal-end grounding electrode structure is good in sealing performance and stability, and can effectively reduce the electrochemical corrosion rate of the grounding electrode and increase the service life of an electrode.
Disclosed are a method for distributing and updating routing information in an SD-WAN network and a controller, pertaining to the fields of controllers and routing. The method comprises: upon an SD-WAN controller accessing an SD-WAN network, gathering routing information, and separately storing routing information of the entire network, routing information to be sent to an apparatus, and network-related routing information; and when a user establishes a service, the controller sending, according to a network identifier and a routing prefix, partial routing information to an associated apparatus as needed, storing a correspondence relationship between the network and the apparatus, and refreshing a mapping relationship between the routing information and the network. The method for distributing and updating routing information in an SD-WAN network in the present invention uses the SD-WAN controller as a control plane to establish a connection to an apparatus, achieves centralized apparatus management, gathers SD-WAN network routing information, and enables timely update thereof, such that apparatuses are only responsible for forwarding, thereby improving data forwarding performance.
A coating wheel, coating device, system, and method for manufacturing optical fiber ribbons. The coating wheel is used for enabling a plurality of optical fibers (8) arranged in parallel and traveling along a set path to form an optical fiber ribbon, and comprises a coating wheel body (1); the coating wheel body (1) is used for intermittently applying an adhesive resin between adjacent optical fibers (8) along the length direction of the optical fibers (8); resin storage grooves (100) are provided in the outer surface of the coating wheel body (1), and the resin storage grooves (100) are used for storing the adhesive resin; air guide channels (11) are provided in the coating wheel body (1); the air guide channels (11) are connected to the resin storage grooves (100); when the coating wheel body (1) rotates, the air guide channels (11) may be located at a first position and a second position; at the first position, the air guide channels (11) are in a negative pressure state, so that the adhesive resin is sucked into the resin storage grooves (100), and at the second position, the air guide channels (11) are in a positive pressure state so that the adhesive resin is blown out from the resin storage grooves (100) to bond the optical fibers (8), such that the transverse and longitudinal flow of the adhesive resin can be prevented during dispensing.
B05C 5/00 - Appareillages dans lesquels un liquide ou autre matériau fluide est projeté, versé ou répandu sur la surface de l'ouvrage
B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluide; Récupération de l'excès de liquide ou d'un autre matériau fluide
B05C 13/02 - Moyens pour manipuler ou tenir des objets, p.ex. des objets individuels pour des objets particuliers
B05C 9/12 - Appareillages ou installations pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par des moyens non prévus dans l'un des groupes , ou dans lesquels le moyen pour déposer le liquide ou autre matériau fluide n'est pas important pour appliquer un liquide ou autre matériau fluide et exécuter une opération auxiliaire l'opération auxiliaire étant exécutée après l'application
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
An adapter (1) and an optical fiber connection assembly, relating to the field of optical fiber communications. The adapter comprises: an adapter body (10), which comprises a connection portion (101), the connection portion (101) being provided with a connection channel (102) matching a connector and a receiving groove (103) in communication with the connection channel (102), and a fastener (17) being movably received in the receiving groove (103); an adapter sleeve (11) sleeved on the connection portion (101), the adapter sleeve (11) having a first state and a second state, when in the first state, the adapter sleeve (11) pressing against the fastener (17) so that a part of the fastener (17) extends into the connection channel (102) in such a manner that said part cannot return, and when the adapter sleeve (11) is in the second state, a relief space for the fastener (17) to exit the connection channel (102) being provided between the adapter sleeve (11) and the opening of the receiving groove (103); an inner pushing ring (12), sleeved on the connection portion (101) and located between the connection portion (101) and the adapter sleeve (11); and a driving device, comprising an adapter pull rope (13) and a first spring (14), the adapter pull rope (13) having one end connected to the adapter sleeve (11), and the first spring (14) having one end pressing against the inner pushing ring (12) and the other end pressing against the adapter sleeve (11). The invention is simple to operate during use, and can meet requirements for high-density arrangement.
Disclosed are a device and method for manufacturing a flexible optical fiber ribbon (4). The manufacturing device comprises: a plurality of spaced-coating assemblies (1) for spaced coating of a plurality of optical fibers (2), arranged to advance in parallel, with adhesive resin in the lengthwise direction thereof, wherein the spaced-coating assembly (1) comprises a coating die (11) and a feeding shaft (12) disposed in the coating die (11), the feeding shaft is in close rotational connection to the coating die, a coating hole channel (111) is provided in the coating die (11), a feeding pipeline (121) is arranged in the feeding shaft (12), and when the coating hole channel (111) is in communication with the feeding pipeline (121) after rotation, the spaced-coating assembly (1) coats the optical fibers (2) at an outlet of the coating hole channel (111) with the adhesive resin; and a ribbon-combining assembly (3) for combining the plurality of optical fibers (2) coated with the adhesive resin at intervals to form the optical fiber ribbon (4). The coating hole channel (111) and the feeding pipeline (121) are continuously switched between a communication state and a non-communication state at a high speed, such that the optical fibers (2) at the outlet of the coating hole channel (111) are quickly coated with the adhesive resin at intervals, the optical fibers (2) are prevented from being damaged, and a coating distance of the adhesive resin may be conveniently adjusted.
Disclosed are an SD-WAN-based device authentication method and system, which relate to the technical field of communications. The method comprises the following steps: an SD-WAN controller performing SSH connection with a WAN device, and the WAN device performing SSH key exchange with the SD-WAN controller according to a device authentication identifier in an authentication configuration file of the WAN device; and the SD-WAN controller acquiring the device authentication identifier and obtaining user authentication information according to the device authentication identifier, and performing SSH user authentication on the WAN device according to the user authentication information. According to the present invention, on the basis of the device authentication identifier in an authentication configuration file, each WAN device is authenticated, without being affected by each WAN device actively online, IP address change and device information independence, thereby ensuring the smooth progress of device authentication.
The present invention relates to the technical field of network management, and disclosed is a method for the fast slicing of a carrier network, comprising the following steps: S1, planning a carrier slice service, entering a slice type and service UNI node pair information, and generating a service UNI node pair information list; S2, according to the slice type, generating a tunnel layer topology in a regional topology range; S3, according to the service UNI node pair information, cyclically performing multipath pathfinding between service UNI node pairs; and S4, comprehensively calculating a virtual node and a virtual link produced by multipath calculation so as to generate a recommended slice. The purpose of the present invention is to provide a method for quickly creating carrier network slices. The automated creation of carrier network slices may be achieved, and compared with the manual creation means in the prior art, operation and maintenance efficiency is greatly improved.
Disclosed are a bi-directional optical sub-assembly (BOSA) with an anti-interference performance, and a BOB optical module. The bi-directional optical sub-assembly comprises a BOSA shell, a ROSA structure (4), and a conductor grounding structure, wherein the BOSA shell comprises a BOSA square outer casing (1), a TOSA structure (2), and a tail fiber structure (3), the TOSA structure (2) being assembled at one end of the BOSA square outer casing (1), a TOSA circuit board (20) of the TOSA structure (2) being assembled on a PCB (5), and the tail fiber structure (3) being assembled at the other end of the BOSA square outer casing (1); one end of the ROSA structure (4) is assembled at a bottom wall of the BOSA square outer casing (1), and the other end thereof is assembled on the PCB (5); and the conductor grounding structure is located on an outer side of the ROSA structure (4), and is used for guiding an induced radiation current on the BOSA shell to a ground plane of the PCB (5). The present invention solves the problem of the area of the PCB (5) being large due to the use of an external shielding cover, also avoids changing the internal structure of the BOSA, and also guarantees the anti-interference performance.
The present invention relates to the technical field of network management and control of telecommunication transmission networks, and disclosed are a virtual component-based scene-type cutover method and system. The present invention uses virtual components, and first adjusts a telecommunication service without changing the topology, and once successful, changes the topology, so as to ensure the integrity of the topology and telecommunication service and that no fragmentation will occur. Compensating transaction means are used to roll back the topology and telecom services in the case of errors in a cutover process, thereby improving rollback efficiency. Basic scenes of cutover are designed, the basic scenes are combined by means of a unified framework to achieve complex scenes, respond to diversified cutover requirements, implement the customization and diversification of user cutover scenes, and improve the scalability of the system.
An updating method and system for optical performance degradation trend prediction. The present invention relates to the field of optical communications. The method comprises the steps of: constructing a neural network for predicting an optical performance degradation trend on the basis of an original key performance index; and extracting a new key performance index from added optical performance indexes, obtaining a correlation coefficient by calculating a covariance between the new key performance index and the original key performance index, and selecting the new key performance index of which the correlation coefficient is less than or equal to an influence degree threshold as all or part of samples to update the neural network. According to the present invention, when the optical performance indexes are increased, new key performance indexes are obtained from the optical performance indexes and serve as samples to update the neural network for predicting optical performance degradation, the optical performance degradation trend is continuously perfected, and the prediction accuracy is improved.
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
WUHAN OPTICAL VALLEY INFORMATION OPTOELECTRONICS INNOVATION CENTER CO., LTD. (Chine)
Inventeur(s)
Zhu, Shichao
Cao, Quan
Abrégé
The present invention relates to the technical field of coherent optical modules. Disclosed are a method and a system for controlling IQ signal phase error, the method comprising the following steps: controlling the IQ signal phase error by adjusting the intensity coefficients of channels corresponding to I signal and Q signal, respectively. The present invention can reduce or even eliminate the quadrature angle phase error of IQ signals to improve the performance of the coherent optical communication system without providing a phase shifter or changing the original coherent optical communication system architecture.
Disclosed are a method and a system for establishing a flexible Ethernet management channel, which relate to the field of flexible Ethernet technology. In the present invention, it is determined whether a FlexE PHY bears valid client service flows, in combination with a configuration negotiation mechanism provided by a FlexE overhead: when no valid service flow is borne, a high-bandwidth management channel is created and management signaling is switched to the high-bandwidth management channel for transmission; when valid client service flows are borne, the management signaling is switched to a management channel configured by a user for transmission, and the high-bandwidth management channel is deleted. In addition, before part or all of the valid client service flows are deleted, management signaling is switched to an undeleted management channel configured by another user or an established high-bandwidth management channel for transmission; when all of the valid client service flows are deleted, a high-bandwidth management channel is recreated and management signaling is switched to the high-bandwidth management channel for transmission, thereby satisfying high-bandwidth occupation requirements of management signaling.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p.ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
H04L 12/24 - Dispositions pour la maintenance ou la gestion
87.
WDM-PON SYSTEM AND MANAGEMENT AND CONTROL METHOD THEREFOR
Disclosed are a WDM-PON system and a management and control method therefor, relating to the technical field of WDM-PON access. The WDM-PON system is applied to a 5G fronthaul service. The system comprises an OLT, an ODN, a wavelength-tunable and controllable optical module (OM), a DU, a CFM and an AAU, wherein the OM is inserted into a clamping slot of the DU; the OM is connected to the OLT; the CFM has an adjustable wavelength, and is inserted into a clamping slot of the AAU; the CFM is connected to the ODN; the OLT comprises a main control unit and an optical path management and control unit; an uplink optical signal and a downlink optical signal in the optical path management and control unit are separately transmitted and managed to realize the receiving and sending of low-speed management data in a high-speed optical signal; the main control unit and the optical path management and control unit manage and control an optical transmission unit together; and the optical transmission unit is the OM or the CFM. The present invention can realize the receiving and sending of the low-speed management data in the high-speed optical signal without affecting original high-speed data optical signal transmission, and can manage and control the CFM and the OM.
Disclosed in the present invention are an SDN architecture-based information conversion method and system, relating to the field of communication technology. In the present application, a variety of data models such as a YANG model and a flow table model are loaded by means of a mapping file, and are converted into corresponding command line scene management objects, being able to seamlessly use, under SDN architecture, a network configuration management protocol to perform configuration delivery management. In the present application, command line scene management objects are used for conversion concerning legacy devices and data models, realizing diverse flexible sets of command line scene management objects, and can support mapping between a variety of data models and different command line scene management objects, without the need for special customization with respect to a single CLI, thereby facilitating the compatibility with and support to a variety of data models for legacy devices.
Disclosed are an automatic balancing method and system for optical power of a C+L waveband, which relate to the field of optical power settings. The steps of the method comprise: collecting an actual output optical power of each wave channel; sequentially calculating, according to an ascending order of wavelengths, a difference value between an actual output optical power and a preset expected output optical power of each wave channel; and if the difference value is greater than a preset threshold, changing the actual output optical power of the wave channel by means of adjusting an incident optical power of the corresponding wave channel until the difference values between the actual output optical powers and the expected output optical power of all the wave channels are below the threshold. According to the present invention, balancing of optical power of each wavelength in the C+L waveband can be realized by means of automatically adjusting the optical power, thereby ensuring the transmission performance of a system.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmission; Dispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04Q 11/00 - Dispositifs de sélection pour systèmes multiplex
The present invention relates to the field of time synchronization, and disclosed are a timestamp jitter compensation method and system. The method is applicable to a packet that has a timestamp. The method comprises the step of: a receiving end compensates for the timestamp of a current packet according to a sending time interval between the current packet and a previous packet and a receiving time interval between the current packet and the previous packet. In the present invention, the timestamp of the current packet is compensated and corrected by means of the sending time interval and the receiving time interval of two adjacent packets. That is, delay jitter and time synchronization jitter are prevented by means of the sending time interval and receiving time interval, which not only significantly improves clock synchronization accuracy and effectively reduces the impact of link delay jitter on synchronization stability, but also does not need to take into consideration the location and clock frequency of a timestamp record, i.e. hardware does not need to be improved.
Disclosed are an intelligent plug-in running method and system based on a convergence terminal, relating to the technical field of communications. The method comprises the following steps: in response to a running instruction of an intelligent plug-in, determining the function type of a function to be executed that is required in response to the running instruction; if said function is recorded in a set-top box function library, a set-top box system executing said function to obtain a first execution instruction result, and sending same to the intelligent plug-in; if said function is recorded in a gateway function library, the set-top box system packaging said function into forwarding information, and sending same to a gateway system; and the gateway system parsing the forwarding information, executing said function to obtain a second execution instruction result, and sending same to the intelligent plug-in. According to the present invention, performance functions of two systems are distinguished in advance, so that the two systems in a convergence terminal have a clear division of work, and the respective running pressure thereof is relieved, thereby improving the respective operation efficiency thereof.
Provided are a binding-yarn-layer-free stranded optical cable and a manufacturing method therefor. The optical cable comprises a central reinforcing member (1), at least one first water-blocking yarn (2), a cable core (3), a water-blocking element (7) and an outer sheath (8), wherein the first water-blocking yarn (2) is wrapped around the outer surface of the central reinforcing member (1); the cable core (3) is arranged at the outer surface of the central reinforcing member (1), and the cable core (3) comprises m loose tubes (4) and n filler ropes (5), which are SZ stranded, m being greater than or equal to one, n being greater than or equal to zero, and the loose tubes (4) containing 1 to 48 optical fibers (6); the outer sheath (8) is arranged on the outer side of the cable core (3); and the water-blocking element (7) is arranged between the cable core (3) and the outer sheath (8). The binding-yarn-layer-free stranded optical cable has no binding yarns because a yarn binding process is omitted from the manufacturing process, thereby preventing the loose tubes from spreading and the outer diameter of the optical cable from being changed when the tension of the binding yarn is too small, and preventing the loose tubes from being flattened when the tension of the binding yarn is too large, resulting in the excessive transmission attenuation of the optical fiber.
Disclosed is a PANDA polarization maintaining optical fiber, comprising a core layer (1) and quartz cladding (2), wherein two stress regions (3), are provided in tire quartz cladding (2), and transition annular regions (4), which are concentric with the stress regions (3), are provided outside the stress regions (3); the core layer (1) comprises a germanium-doped core layer (10) and afluorine-doped core layer (11) successively arranged from the inside to the outside; the germanium-doped core layer (10) comprises a flat germanium-doped layer (100) and a gradient germanium-doped layer (101) successively arranged from the inside to the outside; the refractive index profile of the gradient germanium-doped layer (101) is of a parabolic shape, and the refractive index of the gradient germanium-doped layer (101) gradually decreases in a direction away from the flat germanium-doped layer (100). The cut-off wavelength of the polarization maintaining optical fiber is less than 830 nm.
Disclosed are an optical fiber preform and method used for fabricating an ultra-low attenuation optical fiber, and an optical fiber. The optical fiber preform comprises a core rod and a sleeve sleeved on the outside of the core rod; the core rod comprises a potassium-doped core layer and a potassium-fluorine co-doped core layer successively arranged from the inside to the outside; the sleeve comprises an inner sleeve and an outer sleeve successively arranged from the inside to the outside; the inner sleeve comprises a deep fluorine-doped layer and a shallow fluorine-doped layer successively arranged from the inside to the outside; and a gap between the core rod and the inner sleeve forms a first space. The present invention is capable of solving attenuation caused by high interface stress against an ultra-low attenuation optical fiber, and fabricating the ultra-low attenuation optical fiber.
C03B 37/014 - Fabrication d'ébauches d'étirage de fibres ou de filaments obtenues totalement ou partiellement par des moyens chimiques
C03B 37/025 - Fabrication de fibres ou de filaments de verre par étirage ou extrusion à partir de tubes, tiges, fibres ou filaments ramollis par chauffage
C03B 37/028 - Etirage de faisceaux de fibres, p.ex. pour faire des faisceaux de fibres ou des multifibres
Disclosed is a PANDA polarization maintaining optical fiber, comprising a core layer (1) and quartz cladding (2), wherein two stress regions (3), which are centrosymmetric along the core layer (1), are provided in the quartz cladding (2), and transition annular regions (4), which are concentric with the stress regions (3), are provided outside the stress regions (3); the core layer (1) comprises a germanium-doped core layer (10) and a fluorine-doped core layer (11) successively arranged from the inside to the outside; the germanium-doped core layer (10) comprises a flat germanium-doped layer (100) and a gradient germanium-doped layer (101) successively arranged from the inside to the outside; the refractive index profile of the gradient germanium-doped layer (101) is of a parabolic shape, and the refractive index of the gradient germanium-doped layer (101) gradually decreases in a direction away from the flat germanium-doped layer (100); the fluorine-doped core layer (11) comprises a quartz core layer (110), a first gradient fluorine-doped layer (111), a flat fluorine-doped layer (112) and a second gradient fluorine-doped layer (113) successively arranged from the inside to the outside; the refractive index profiles of the first gradient fluorine-doped layer (111) and the second gradient fluorine-doped layer (113) are both in the shape of a curve, and are symmetric along the refractive index profile of the flat fluorine-doped layer (112); and the refractive index of the first gradient fluorine-doped layer (111) gradually decreases in a direction away from the quartz core layer (110). The cut-off wavelength of the polarization maintaining optical fiber is less than 830 nm. The PANDA polarization maintaining optical fiber is applicable to multiple bands and has a good attenuation and a good extinction ratio.
An ultra-low attenuation large effective area single-mode optical fibre, comprising a core layer (1), a first cladding layer (2), a second cladding layer (3), a third cladding layer (4), and a fourth cladding layer (5) arranged in sequence from inside to outside; the first cladding layer (2) is fluorine-doped quartz; the second cladding layer (3), the third cladding layer (4), and the fourth cladding layer (5) are quartz; the third cladding layer (4) is provided with at least one annular microporous layer sequentially arranged from inside to outside, the annular microporous layer comprising a plurality of evenly distributed micropores (40), the circle centres of the micropores (40) in each annular microporous layer being cocircular, and the circle being concentric with the core layer (1); the core layer (1) is alkali metal-doped quartz, the core layer (1) comprising an inner core layer (10) and a transition core layer (11) arranged in sequence from inside to outside; the relative refractive index difference aa between the transition core layer (11) and the fourth cladding layer (5) satisfies bb, wherein a is the transition coefficient of the transition core layer (11), and x is the distance from any point in the transition core layer (11) to the edge of the inner core layer (10). The present single-mode optical fibre has ultra-low attenuation and a large effective area, and can implement large-mode field optical fibre transmission and reduce the non-linear effect of large capacity transmission.
Disclosed is an optical fiber connector. An optical fiber insertion core (4) is arranged at a head end of a main body (7) of a hollow structure, and a shell (8) detachably sleeves the outside of the main body (7); a push-pull component (9) is partially arranged at a tail end of the main body (7) in a sliding manner, and one end, positioned outside the main body (7), of the push-pull component (9) is used for a butt joint optical fiber (11) to be mounted; a butt joint (12) is arranged in the head end of the main body (7), the butt joint (12) comprises a base (1) and an upper cover (2), the upper cover (2) covers the base (1), and a butt joint channel is formed between the upper cover (2) and the base (1); one end of a pre-embedded optical fiber (5) is arranged in the optical fiber insertion core (4), the other end thereof is located in the butt joint channel, and the butt joint channel is used for butt joint between the pre-embedded optical fiber (5) and the butt joint optical fiber (11); and an outer tail sheath (10) is used for being in threaded connection to the main body (7), pushing the push-pull component (9) and then fixing same, and locking the upper cover (2) on the base (1), such that the butt joint optical fiber (11) is bent outside the butt joint channel. According to the optical fiber connector, the benefits of the structures of the push-pull component (9) and the outer tail sheath (10) are that not only can contamination of a cutting end face of the butt joint optical fiber (11) be avoided during butt jointing, the butt joint optical fiber (11) is bent without needing manual control.
Disclosed are a general data configuration method and system for service invocation, relating to the field of data configuration. The method comprises the steps of: defining a uniform data model for each sub-service, and establishing an iteration relationship for each sub-service required by a service to be invoked, wherein the iteration relationship comprises one initial sub-service and the remaining partner sub-services; after the configuration of one partner sub-service is completed, determining the initial sub-service according to the iteration relationship; and after the configuration of the initial sub-service is completed, if it is determined, according to the iteration relationship, that the configuration of all the remaining partner sub-services is also completed, forming service configuration information of said service. According to the present invention, a uniform data model is invoked by different services, thereby obviously simplifying a service configuration process; and according to the present invention, by means of the division of an initial sub-service, partner sub-services, and an iteration relationship therebetween, a whole service to be invoked can be configured according to the iteration relationship, regardless of any acquired sub-service of a service to be invoked.
Disclosed are a multi-core and few-mode optical fiber and a manufacture method therefor. The multi-core and few-mode optical fiber comprises a fiber body and a cladding layer (3). The fiber body comprises at least one first fiber core ( 1) and at least two second fiber cores (2), which are a determined distance away from the center of the fiber body and spaced with each other. Each of the first fiber core (1) and the second fiber core (2) comprises at least one circulating layer and a core layer arranged outside the circulating layer. Arbitrary two adjacent core layers of the first fiber core (1) and the second fiber core (2) have different refractive indexes or diameters, and at least one of the effective refractive index and the diameter of the first fiber core (1) is different from that of the second fiber core (2). The cladding layer (3) surrounds the first fiber core (1) and the second fiber core (2), and the refractive index of the cladding layer (3) is lower than that of the first fiber core (1) and the second core (2), and is higher than that of the outermost core layer of the first fiber core (1) and the second fiber core (2). The method solves the problem that the transmission signals are similar and difficult to be distinguished in a signal transmission process when the optical fiber is applied in the sensing and communication field.
ϕϕϕ(m); performing digital down-conversion for obtaining a baseband signal, then performing down-sampling; and finally performing dispersion compensation and signal recovery on the baseband signal. According to the present invention, by means of IQ modulation and direct detection, the complexity of the system is reduced, and the signal receiving sensitivity is improved.
