Abstract

A light detection and ranging receiving system, comprises a plurality of lenses, an aperture and a detector. A vertex curvature of a lens farthest from the detector is positive. Lenses on left and right sides of the aperture are asymmetric relative to the aperture. An instantaneous field of view angle gradually increases from a central field of view of the light detection and ranging receiving system to an edge field of view, and a negative distortion also gradually increases.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

A light detection and ranging system comprises a transmitting system, a receiving system, a scanning system, a data processing system and a control unit. The instantaneous field of view angle of the receiving system is non-uniform.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
• G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles

Abstract

A silicon-carbon composite negative electrode material containing a lithium-rich long-chain composite salt, comprises a silicon-carbon composite material slurry and a lithium-rich long-chain composite salt. Each silicon-carbon composite material particle comprises an element-doped silicon-containing nanoparticle, a first carbon-based covering layer and a second carbon-based covering layer. The element-doped silicon-containing nanoparticle is a core, the first carbon-based covering layer is coated on a surface of the element-doped silicon-containing nanoparticle, the second carbon-based covering layer is coated on the first carbon-based covering layer. The lithium-rich long-chain composite salt comprises a plurality of composite ion bridging structures. A method for preparing the silicon-carbon composite negative electrode material containing a lithium-rich long-chain composite salt is further provided.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

A powder supply system for supplying powders by a transmission structure includes a first stock bin, a driven member, a driving medium, and a second stock bin. The first stock bin includes an outlet, the driven member is arranged at the outlet, and the driven member includes a powder holding area configured for receiving the powders discharged from the outlet. The outlet is arranged opposite to an inlet of the second stock bin, the second stock bin can drive the driving medium to contact the driven member when moving to a discharge range corresponding to the outlet, and the driven member can discharge the powders in the powder holding area into the second stock bin by the driving medium driving the driven member. A three-dimensional printer is also disclosed.

IPC Classes  ?

• B22F 12/52 - Hoppers
• B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
• B22F 12/57 - Metering means
• B22F 12/63 - Rollers
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A machine learning method includes: processing a first global image and a first local image by a first augmentation pipeline to generate a first augmentation global image and a first augmentation local image; processing the first global image by a second augmentation pipeline to generate a second augmentation global image; processing the first augmentation global image to generate a first global representation vector; processing the second augmentation global image and the first augmentation local image to generate a second global representation vector and a first local representation vector; comparing the first and second global representation vectors to generate a global loss function; comparing the first global representation vector and the first local representation vector to generate a mixed loss function; and adjusting the second encoder according to the global loss function and the mixed loss function.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation
• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting

Abstract

A spatial light modulation unit includes a first electrode, a second electrode and a super-aligned carbon nanotube-paraffin composite structure. The first electrode is spaced apart and insulated from the first electrode. The super-aligned carbon nanotube-paraffin composite structure is electrically connected to the first electrode and the second electrode. The super-aligned carbon nanotube-paraffin composite structure includes a super-aligned carbon nanotube structure and a paraffin layer overlapped with each other.

IPC Classes  ?

• G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour
• G02F 1/169 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on orientable non-spherical particles having a common optical characteristic, e.g. suspended particles of reflective metal flakes

Abstract

This application provides a powder laying mechanism, an additive manufacturing equipment, and a powder laying method. Wherein, the powder laying mechanism comprises a stock bin, a powder feeding roller, a driving member and one or more powder pressing rollers. The stock bin is provided with a powder outlet. The powder feeding roller is provided at the powder outlet. The driving member is connected with the powder feeding roller and configured to drive the powder feeding roller to rotate. One of the powder pressing rollers is connected to the powder feeding roller through one transmission assembly, and the powder pressing roller is rotatable under a drive of the powder feeding roller.

IPC Classes  ?

• B29C 64/218 - Rollers
• B29C 64/241 - Driving means for rotary motion
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A LIDAR system comprises a chaotic signal generating device, a signal transmitting device and a signal processing system sequentially coupled in series. The chaotic signal generating device is configured to generate a chaotic signal and comprises a feedback device and a laser generator configured to generate a laser signal. The feedback device is configured to receive the laser signal, generate the chaotic signal and a feedback signal according to a laser signal, and transmit the adjusted feedback signal to the laser generator. The signal transmitting device is configured to receive the chaotic signal, so as to generate a reference signal and detection signal, wherein the detection signal is transformed into a reflected signal after being reflected by an obstacle. The signal processing system is configured to receive the reference signal and the reflected signal, so as to determine a delay time by using a frequency domain phase modulation algorithm.

IPC Classes  ?

• G01S 17/26 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals
• G01S 7/484 - Transmitters
• G01S 7/487 - Extracting wanted echo signals
• G01S 17/42 - Simultaneous measurement of distance and other coordinates
• H01L 31/107 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier working in avalanche mode, e.g. avalanche photodiode
• H02M 1/084 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system

Abstract

A device interaction method for achieving a portable display device to interact with a vehicle as a in-vehicle display screen comprises: detecting whether the vehicle is accessed to the portable display device, obtaining a current connection position of the vehicle connected with the portable display device, obtaining a vehicle operation authority matched with the current connection position, receiving a vehicle operation request, and determining whether to interact with the vehicle in accordance with the vehicle operation request based on the vehicle operation authority matched with the current connection position. The portable display device and a non-transitory storage medium are also disclosed.

IPC Classes  ?

• G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• G06F 3/14 - Digital output to display device
• B60K 35/10 - Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• B60K 35/80 - Arrangements for controlling instruments

Abstract

A display control device comprises a support arm, a control panel, and a signal transmission circuit board. A first end of the support arm is configured to install the main control screen. A second end of the support arm is extended in a direction away from a front surface of the main control screen, and the control panel is arranged on the second end of the support arm. The control panel is configured to output a trigger signal. The signal transmission circuit board is configured to transmit the trigger signal to a host of the vehicle, the signal transmission circuit board is further configured to receive a display signal and transmit the display signal to the control panel, the display signal is configured to control the control panel to display corresponding vehicle status information. A display equipment and a vehicle are also provided.

IPC Classes  ?

• B60K 37/02 - Arrangement of instruments
• B60K 37/04 - Arrangement of fittings on dashboard

Abstract

A monitor holder is provided, comprising a connecting component, a base and an absorbing component, the connecting component is connected to the vehicle monitor, the base is provided with a first groove, the connecting component is arranged in the first groove, the first groove is provided with a space configured for the connecting component to slide, the base is connected to the vehicle body; the absorbing component is arranged between the connecting component and the base, the connecting component and the base are abutted against the absorbing component, the connecting component is wrapped around the base when the absorbing component is deformed. A vehicle monitor device is also provided.

IPC Classes  ?

• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
• G01D 11/30 - Supports specially adapted for an instrumentSupports specially adapted for a set of instruments

Abstract

A method for preparing a lithium-ion battery is provided. The method comprises: S1, providing a positive electrode sheet and two composite solid electrolyte membranes, and applying the positive electrode sheet between the two composite solid electrolyte membranes to form a positive electrode composite structure; S2, providing a negative electrode sheet and two composite solid electrolyte membranes, applying the negative electrode sheet between the two composite solid electrolyte membranes to form a negative electrode composite structure; S3, stacking at least one positive electrode composite structure and at least one negative electrode composite structure to form a battery preform; and, S4, pressing the battery preform, and the composite solid electrolyte membranes in the battery preform is trimmed, shaped and fixed to obtain the lithium-ion battery.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/0562 - Solid materials
• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes

Abstract

A lithium-ion battery comprises a positive electrode sheet, a composite solid electrolyte membrane and a negative electrode sheet stacked with other in that sequence. The composite solid electrolyte membrane is a continuous membrane structure and comprises a first part of composite solid electrolyte membrane and a second part of composite solid electrolyte membrane. The first part of composite solid electrolyte membrane is stacked and parallel with the at least one positive electrode sheet and the at least one negative electrode sheet. The second part of composite solid electrolyte membrane is located on a side surface of the lithium-ion battery.

IPC Classes  ?

• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
• H01M 50/426 - Fluorocarbon polymers
• H01M 50/431 - Inorganic material

Abstract

A light-emitting device array includes a first light-emitting device, a second light-emitting device, and a third light-emitting device. A first beam shaping structure of the first light-emitting device is configured to convert light emitted by a first light-emitting structure of first light-emitting device into first structured light. A second beam shaping structure of the second light-emitting device is configured to convert light emitted by a second light-emitting structure of second light-emitting device into second structured light. Speckle patterns and spatial distributions of the first structured light and the second structured light on a projection plane are the same. A third beam shaping structure of the third light-emitting device is configured to convert light emitted by a third light-emitting structure of third light-emitting device into third structured light.

IPC Classes  ?

• G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements
• H01S 5/00 - Semiconductor lasers

Abstract

This disclosure provides a powder compaction assembly, a powder laying mechanism, and an additive manufacturing equipment. The powder compaction assembly includes a mounting frame, a powder compaction roller, a scraper, and a rotary member. The mounting frame is rotatably disposed in the mounting frame. The scraper is connected to the mounting frame along an adjusting direction removable. The adjusting direction and the molding surface are perpendicular or intersecting. The scraper is separable from the powder compaction roller. The rotary member is connected to the mounting frame rotationally and fitted with the scraper. The rotary member is configured to rotate relative to the mounting frame and drive the scraper to move along the adjusting direction, and adjust distance between the scraper and the molding surface along the adjusting direction.

IPC Classes  ?

• B29C 64/218 - Rollers
• B22F 12/63 - Rollers
• B22F 12/67 - Blades
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/214 - Doctor blades
• B29C 64/321 - Feeding
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

An optical detection system includes a first optical transmitter module, a first optical receiver module, a second optical receiver module, and a second optical transmitter module. The first optical transmitter module is configured to emit detection light. A first light transmitter of the first optical transmitter module includes a photonic crystal surface emitting laser. A first metasurface of the first optical transmitter module is located above the first light transmitter. The second optical receiver module is configured to receive first communication light. The second communication light has information of signal light and information in first communication light. A second light transmitter of the second optical transmitter module includes a photonic crystal surface emitting laser. A second metasurface of the second optical transmitter module is located above the second light transmitter.

IPC Classes  ?

• H04B 10/69 - Electrical arrangements in the receiver

Abstract

A trajectory prediction apparatus is configured to execute the following operations. A reference path line is selected from multiple path lines of a scene based on multiple first trajectory coordinates of an object, wherein the first trajectory coordinates and the path lines correspond to a first coordinate system. The first trajectory coordinates of the first coordinate system are transformed into multiple second trajectory coordinates corresponding to a second coordinate system, wherein the second trajectory coordinates indicate relationships of the object corresponding to the reference path line. A predicted trajectory of the object is generated based on the second trajectory coordinates by using a prediction model.

IPC Classes  ?

• G01C 21/36 - Input/output arrangements for on-board computers

Abstract

A method of manufacturing a semiconductor device is provided, including: forming a first conductive type lightly doped region in the epitaxial layer; forming a first conductive type heavily doped region and a second conductive type heavily doped region in the epitaxial layer on the first conductive type lightly doped region, in which the neighboring first conductive type heavily doped regions are spaced apart by the second conductive type heavily doped region; disposing the mask on the second conductive type heavily doped region; disposing a spacer on a sidewall of the mask; doping a first conductive type dopant in the first conductive type lightly doped region to form an anti-breakdown region; removing the mask and forming a trench extending into the second conductive type heavily doped region, first conductive type lightly doped region and the epitaxial layer; and removing the spacer.

IPC Classes  ?

• H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
• H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
• H01L 21/266 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation using masks
• H01L 29/66 - Types of semiconductor device
• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

Abstract

A vehicle control device for shell sharing between control modules comprises a first control module and a second control module. The first control module comprises a plurality of first connectors, a first circuit board, and a first controller arranged in a second area of the first circuit board. The second control module comprises a plurality of second connectors, a second circuit board, and a second controller arranged in the fourth area of the second circuit board. By setting the size of the first circuit board and the second circuit board to be consistent, the number and type of the first connectors and the second connectors to be consistent, and the second area of the second circuit board corresponding to the first area of the first circuit board is set, the shell structure of the first control module and the second control module can be shared. A vehicle is also provided.

IPC Classes  ?

• B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
• H05K 5/00 - Casings, cabinets or drawers for electric apparatus
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

A method for vehicle motion forecasting includes the following steps. A lane graph structure is generated according to a raw map data. Multiple occupancy flow graphs which are homogeneous to data format of the lane graph structure are established according to trajectory data of a plurality of vehicles in multiple consecutive frames and the lane graph structure. Multiple temporal edges between the occupancy flow graphs are established according to the trajectory data of the vehicles in the consecutive frames to construct a temporal occupancy flow graph. Feature aggregation is performed on the temporal occupancy flow graph to generate multiple updated node features, and a motion forecasting of an ego-vehicle is generated according to the updated node features.

IPC Classes  ?

• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
• G01C 21/00 - NavigationNavigational instruments not provided for in groups

Abstract

An electrically modulated light source comprises a carbon nanotube-graphene composite film structure, a first electrode and a second electrode. The carbon nanotube-graphene composite film structure comprises a carbon nanotube layer and a graphene layer stacked with each other. The first electrode and the second electrode electrically coupled with nanotube-graphene composite film structure. The first electrode and the second electrode are configured to apply a voltage to the carbon nanotube-graphene composite film structure.

IPC Classes  ?

• G01J 3/10 - Arrangements of light sources specially adapted for spectrometry or colorimetry
• G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

Abstract

A method of manufacturing a semiconductor device includes forming an epitaxial layer on a substrate, forming a hard mask on the epitaxial layer, in which the hard mask includes a first portion and a second portion, with a gap therebetween, performing an oxidation process to form an oxide layer on a surface of the hard mask, forming a source region in the epitaxial layer through the gap of the hard mask, forming a well region in the epitaxial layer using the second portion of the hard mask as a mask, forming a sacrificial layer on the source region and the well region, removing the second portion of the hard mask, forming a JFET region in the epitaxial layer using the sacrificial layer as a mask, forming a dielectric layer on the JFET region, removing the sacrificial layer and forming a gate structure adjacent the dielectric layer.

IPC Classes  ?

• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
• H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
• H01L 29/66 - Types of semiconductor device

Abstract

A method of forming a semiconductor device includes forming an epitaxial layer on a substrate, forming a hard mask layer on the epitaxial layer, forming a JFET region in the epitaxial layer by using the hard mask layer and removing the hard mask layer, forming a staircase-shaped hard mask stack on the JFET region, forming a well region in the epitaxial layer by using the staircase-shaped hard mask stack, in which a bottom of the JFET region is lower than a bottom of the well region and the bottom of the well region is in contact with the JFET region and a drift region of the epitaxial layer simultaneously, forming a source region in the well region, removing the staircase-shaped hard mask stack, and forming a gate structure on the JFET region.

IPC Classes  ?

• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
• H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
• H01L 29/66 - Types of semiconductor device

Abstract

A backlight assembly is provided, comprising a backboard, one or more light sources, a diffuser plate, and one or more supporting assembly. The light sources are arranged on the backboard. The diffuser plate is arranged on the light-emitting side of the light source. The supporting assembly is arranged between the backboard and the diffuser plate. The supporting assembly comprises a supporting base and an elastic support. The supporting base connects with the backboard, one end of the elastic support is connected with the supporting base, another end of the elastic support supports the diffuser plate. The elastic support defines on a plurality of dimming grooves, the plurality of dimming grooves reflects at least a part of light emitted by the light source to the diffusion plate.

IPC Classes  ?

• G02F 1/13357 - Illuminating devices

Abstract

A scene encoding generating apparatus is configured to execute the following operations. The scene encoding generating apparatus generates a local coordinate system based on a position and a movement state corresponding to each of a plurality of obstacles in a time point. The scene encoding generating apparatus transforms the position and the movement state corresponding to each of the obstacles to the corresponding local coordinate system to generate a local position and a local movement state. The scene encoding generating apparatus generates an obstacle tensor corresponding to the obstacles based on the local positions and the local movement states corresponding to the obstacles, wherein the obstacle tensor is corresponding to the time point. The scene encoding generating apparatus inputs the obstacle tensor into a scene encoder to generate a scene encoding, wherein the scene encoding is configured to be inputted into a decoder to generate a trajectory prediction.

IPC Classes  ?

• G06T 9/00 - Image coding
• G06T 7/20 - Analysis of motion
• G06T 7/70 - Determining position or orientation of objects or cameras

Abstract

A display control device comprises a rotation controller, and a drive circuit. The rotation controller is configured to control the drive circuit to output a first drive signal to drive the display screen to convert to landscape when receiving the first rotation signal, and control the drive circuit to output a second drive signal to drive the display screen to convert to portrait when receiving the second rotation signal. The rotation controller is further configured to control the drive circuit according to the vehicle status signal to drive the display screen to a corresponding position, and control the drive circuit to suspend working when the vehicle is in a driving state. The rotation controller can control the drive circuit according to different vehicle status signals, so as to drive the display screen to rotate to the appropriate position following the vehicle status, thus improving the driver's comfort and safety.

IPC Classes  ?

• B60K 35/00 - Instruments specially adapted for vehiclesArrangement of instruments in or on vehicles

Abstract

This disclosure provides a method of manufacturing an electrode sheet of a lithium-ion liquid battery. An electrode powder is formed from an active material by a dry mixing process. A current collecting metal sheet is disposed in a mold. The electrode powder is introduced into a cavity of the mold on opposite sides of the current collecting metal sheet. A thermal compression process using the mold is performed to form a first and a second electrode layer from the electrode powder, where the two electrode layers are respectively attached to a first and a second surface of the current collecting metal sheet. When a positive electrode sheet is manufactured, densities of the electrode layers are in a range of 1.6 g/cm3 to 3.4 g/cm3. When a negative electrode sheet is manufactured, densities of the electrode layers are in a range of 1.2 g/cm3 to 2.1 g/cm3.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/66 - Selection of materials
• H01M 4/70 - Carriers or collectors characterised by shape or form
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

An electric vehicle power system, comprises: an electric motor, configured to provide power to an electric vehicle; a main converter coupled with the electric motor, and being a DC-to-AC converter or a DC-to-DC converter; a main battery pack electrically connected to the main converter through a first DC-DC converter; and a fixed battery electrically connected to the main converter through a second DC-DC converter.

IPC Classes  ?

• B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
• B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
• B60L 58/20 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
• B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries

Abstract

A body control device comprises a first circuit board, a plurality of first connectors, a communication control circuit, a second circuit board, a plurality of second connectors and a body control circuit. A size of the second circuit board is consistent with a size of the first circuit board. The communication control circuit is arranged on the first area of the first circuit board. The body control circuit is arranged on the second area of the second circuit board. The body control device can realize shell sharing of the communication control circuit and the body control circuit by setting the second circuit board and the first circuit board the same size and the communication control circuit and the body control circuit the same place. A vehicle is also provided.

IPC Classes  ?

• H05K 5/00 - Casings, cabinets or drawers for electric apparatus
• H05K 1/02 - Printed circuits Details
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details

Abstract

A method for preparing a hole transport layer of a perovskite solar cell, comprises S11, providing a conductive substrate; and S12: doping silver, gallium, selenium and sulfur with each other on the conductive substrate to obtain a hole transport layer. The present disclosure further provides a hole transport layer of a perovskite solar cell and a perovskite solar cell.

IPC Classes  ?

• H10K 30/86 - Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers
• H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
• H10K 101/30 - Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values

Abstract

A method for identifying traffic sign is provided. The method obtains an original image of a traffic sign, and performs an image enhancing processing on the original image to form an enhanced image. The method performs a first conversion on the original image and the enhanced image to together form a first matrix of image data, and identifies a position of the traffic sign accordingly. The method further masks the original image and the enhanced image respectively to form a first identified region of the original image and a second identified region of the enhanced image accordingly. The method further performs a second conversion on the first identified region and the second identified region to together form a second matrix of the identified region of the image data, and identifies passage instruction information of the traffic sign accordingly. An electronic device and a non-transitory storage medium are also disclosed.

IPC Classes  ?

• G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
• G06T 7/11 - Region-based segmentation
• G06T 7/174 - SegmentationEdge detection involving the use of two or more images
• G06T 7/194 - SegmentationEdge detection involving foreground-background segmentation
• G06T 7/70 - Determining position or orientation of objects or cameras
• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
• G06V 20/60 - Type of objects

Abstract

A method of manufacturing a semiconductor device includes providing a substrate, in which the substrate is SiC base. The substrate, from bottom to top, sequentially includes an N-type heavy doping base layer, an N-type light doping layer, a P-well region, and an N-type heavy doping layer. The substrate is etched by using a patterned mask to form a gate trench and a channel region defined by the gate trench. The channel region is shielded by the patterned mask. An ion implant is performed to the gate trench such that a shielding implant layer is formed on the bottom of the gate trench. An oxidation process is performed to the gate trench thereby forming a gate oxide layer. The oxidation rate at the bottom of the gate trench is faster than the oxidation rate at the sidewall of the gate trench. A semiconductor device is also provided.

IPC Classes  ?

• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
• H01L 21/266 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation using masks
• H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
• H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
• H01L 29/66 - Types of semiconductor device

Abstract

A device control method implementing to blindly operate an electronic device through a border, comprises determining a control function corresponding to a first border area of the electronic device in response to the first border area receiving a first touch operation, outputting a prompt tone corresponding to the control function, obtaining operation information of the first touch operation, and performing a control task of the control function based on the operation information. The electronic device and a computer storage medium are also provided.

IPC Classes  ?

• G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• G06F 3/042 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
• G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A composite electrolyte membrane, comprises: a lithium salt compound, a polymer material, a solid electrolyte, and a plasticizer. The polymer material comprises polyvinylidene fluoride and polymethyl methacrylate. The present disclosure further discloses a lithium-sulfur battery using the composite electrolyte membrane. A method for preparing the composite electrolyte membrane is further provided.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• H01M 10/052 - Li-accumulators

Abstract

A semiconductor with 3D flash memory storing cells giving an extended life time includes a stack structure in each storing cell, a receiving space crossing through the stack structure, a blocking layer, at least one floating gate layer, and a channel layer. The stack structure includes at least one control gate layer, at least two dielectric layers, and at least one erasing layer. The receiving space comprises a first receiving portion communicating with several second receiving portions. The first receiving portion crosses through the stack structure and the second receiving portions are coplanar with the control gate layer. The blocking layer insulates the floating gate layer from the control gate layers. The erasing layer and floating gate layer form a passageway for electrons when data erasure is required in the semiconductor. A method for fabricating the semiconductor is also disclosed.

IPC Classes  ?

• H10B 41/27 - Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels the channels comprising vertical portions, e.g. U-shaped channels
• H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
• H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
• H01L 29/66 - Types of semiconductor device
• H01L 29/788 - Field-effect transistors with field effect produced by an insulated gate with floating gate

Abstract

A virtual scene generation method applied to an electronic device is provided. The electronic device identifies object prediction information of each real object in each of real scene images. A first virtual image corresponding to each real scene image is obtained according to the object prediction information of each real object. A second virtual image and a texture difference image corresponding to each real scene image are generated. A target image corresponding to each real scene image is generated according to the second virtual image and the texture difference image corresponding to each real scene image. Once a virtual scene generation model is generated based on the real scene images, the first virtual image, the second virtual image, the target image corresponding to each real scene image, a virtual scene corresponding to an image is obtained using the virtual scene generation model and the virtual scene simulator.

IPC Classes  ?

• G06T 15/04 - Texture mapping
• G06T 7/20 - Analysis of motion
• G06T 7/50 - Depth or shape recovery
• G06T 7/70 - Determining position or orientation of objects or cameras
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
• G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]Salient regional features
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects

Abstract

A method for detecting obstacles implemented in an electronic device includes obtaining detection point data from at least one sensor, the detection point data comprising a first position coordinate of each of a plurality of detection points; transforming the first position coordinate of each of the plurality of detection points to a second position coordinate of each of the plurality of detection points relative to an ego vehicle; determining at least one target object according to a plurality of second position coordinates; calculating target object data of the at least one target object according to a second position coordinate of each of the plurality of detection points relative to the ego vehicle; tracking the at least one target object according to the target object data.

IPC Classes  ?

• G06T 7/20 - Analysis of motion
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

A floated button and a vehicle screen assembly are provided. The vehicle screen assembly includes a display and the floated button. The floated button includes an adapter board electrically connect to a controller and a power source of the vehicle screen assembly through signal cables; a fixed base includes a receiving space, the adapter board is received in the receiving space, and the fixed base is connected to a rotation motor holder of the vehicle screen assembly; a button supporter arranged on the fixed base; and a button module arranged on the button supporter and floated on a side of the display. The button module includes a plurality of buttons arranged along a broadside extending direction. The buttons are electrically connected to the adapter board, and each of the buttons is configured to transmit corresponding button data to the controller through the adapter board when the button is triggered.

IPC Classes  ?

• G06F 3/02 - Input arrangements using manually operated switches, e.g. using keyboards or dials
• G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• G06F 3/147 - Digital output to display device using display panels

Abstract

A method of forming a solid-state electrolyte powder includes the following steps. A zirconium compound layer is formed on an inner surface of a container. A precursor mixture is placed on the zirconium compound layer. The precursor mixture includes a first salt group and a second salt group. The first salt group includes zirconium source compound, lanthanum source compound, aluminum source compound, titanium source compound, tantalum source compound, or combinations thereof. The second salt group includes lithium source compound. An aerobic sintering process is performed to form the solid-state electrolyte powder.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• C01G 25/00 - Compounds of zirconium

Abstract

A head-mounted device comprises a main body, a monitor-base, at least one monitor, and a sensor. The main body is mounted on a head. The monitor moves with the monitor-base. The sensor is mounted on the main body or the monitor-base and used for detecting a state of the head. A visual field is defined as a maximum area seen by eyes of the user, and an area of the virtual image is smaller than the visual field. The at least one monitor is movable by moving the monitor-base relative to the main body according to the state of the head, detected by the sensor, to adjust a relative angle of the monitor to the eyes such that a relative position of the virtual image in the visual field is adjusted, to ensure that the user sees the virtual image. An augmented reality device is also disclosed.

IPC Classes  ?

• G02B 27/01 - Head-up displays
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A driving assistance algorithm testing method applied to an electronic device is provided. In the method, the electronic device obtains a driving assistance algorithm to be tested of a vehicle and multiple specification parameters and models a virtual scene on a simulator according to the preset parameters and generates an initial image according to the virtual scene. The electronic device obtains a target image corresponding to the driving assistance algorithm by converting the initial image according to a preset sensor conversion algorithm and the specification parameters, and generates a target vehicle control instruction according to the driving assistance algorithm, the target image, a vehicle control conversion algorithm, and the specification parameters, and scores the driving assistance algorithm by executing the target vehicle control instruction in the virtual scene of the simulator. The method can improve a verification accuracy of the driving assistance algorithm.

IPC Classes  ?

• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
• B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself

Abstract

A gateway security circuit for isolating an internal vehicle domain and an external vehicle domain comprises a first communication interface, a second communication interface, and a communication module. The communication module comprises an intranet domain controller electrically connected with the first communication interface and an external domain controller electrically connected with the second communication interface. The intranet domain controller is configured to communicate with the in-vehicle communication system of a vehicle, and the external domain controller is configured to communicate with the out-of-vehicle communication system of the vehicle. intranet domain controller and the external domain controller respectively control the data transmission with the in-vehicle communication system and the out-vehicle communication system, realizing the isolation of the intranet domain controller and the external domain controller, avoiding the cross transmission of data, reducing the risk of vehicle intrusion. A gateway security device and the vehicle are also provided.

IPC Classes  ?

• G07C 5/00 - Registering or indicating the working of vehicles
• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

Abstract

A method for identifying images of any kind of object, applied in an electronic device, obtains images to be classified, and obtains classification models and target models. Image segmentation on the images is carried out and target images are obtained; target images are input into each of the input layers and target feature maps are generated; target values according to size of each target feature map are generated; a convolution operation on the target feature maps generates feature values and a target vector of each target model is generated according to average pooling layers, feature values, and target values. The target vector is input into classification layers of a target model and label categories and probability values of categories obtained, enabling classification of images according to the label categories and the probability values of categories.

IPC Classes  ?

• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
• G06V 10/32 - Normalisation of the pattern dimensions
• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations

Abstract

A method of identifying traffic signs is provided. The method obtains an image of a travel in front of vehicle during a travel of the vehicle. Where the image of the travel comprises one or more traffic lanes and one or more traffic signs. The method processes the image of the travel to obtain an image of a first lane where the vehicle is in. The method obtains an image of a traffic sign corresponding to the image of the first lane from the image of the travel according to the image of the first lane. The method outputs one or more control signals to a driving system of the vehicle according to content of the image of the traffic sign corresponding to the image of the first lane. A related vehicle and a non-transitory storage medium are provided.

IPC Classes  ?

• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
• B60W 30/14 - Cruise control
• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

Abstract

A method for identifying traffic signs is provided. The method obtains an image of a travel in front of vehicle. The method obtains an image of a first sign from the image of the travel and corresponding to a traffic lane where the vehicle current is, and obtains an image of a second sign from the image of the travel, associated with the image of the first sign, and on an image of a traffic sign according to the image of the first sign. The method determines an image of an association sign to be an image of an indicating sign on the traffic sign where the second sign is, and outputs a control signal to a driving system of the vehicle according to content of the image of the association sign. A related vehicle and a non-transitory storage medium are provided.

IPC Classes  ?

• B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

Abstract

A model determination apparatus is configured to execute the following operations. Multiple candidate models are validated based on first adversarial validation data to generate a first accuracy corresponding to each of the candidate models, wherein the first adversarial validation data is generated by a first adversarial attack adjustment performed on validation data based on an initial model. A second adversarial attack adjustment is performed on the validation data based on each of the candidate models to generate a plurality of second adversarial validation data corresponding to each of the candidate models respectively. The candidate models are validated based on the corresponding second adversarial validation data to generate a second accuracy corresponding to each of the candidate models. At least one output model is selected from the candidate models based on the first accuracy and the second accuracy corresponding to each of the candidate models.

IPC Classes  ?

• G06F 21/55 - Detecting local intrusion or implementing counter-measures

Abstract

A vehicle behavior control method implementing functions of not affecting a driving safety of a vehicle through a pedal, comprises acquiring a pedal duration of the pedal, determining a custom instruction matched with the pedal duration of the pedal, and controlling the vehicle to perform a vehicle behavior corresponding to the custom instruction. A vehicle behavior control system and a vehicle computer are also provided.

IPC Classes  ?

• B60W 30/18 - Propelling the vehicle

Abstract

A method for identifying depths of images is provided. In the method, the computer device obtains point clouds of a road scene and a spatial coordinate value of each point in the point clouds. An initial depth image is obtained by inputting the first image into a preset depth identification network. A projected depth value and a projected coordinate value are obtained by converting the spatial coordinate value, and a target depth value is calculated. An initial projection image is generated based on the target depth value and a second image. A loss value is calculated according to the first image, the initial projection image and the second image, and a pre-trained image identification model is obtained by adjusting the preset depth identification network. By performing the method, measurement unit information of depth information of images can be determined.

IPC Classes  ?

• G06T 7/55 - Depth or shape recovery from multiple images
• G06T 3/4046 - Scaling of whole images or parts thereof, e.g. expanding or contracting using neural networks
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

A lane line labeling method applied to an electronic device is provided. In the method, the electronic device acquires a target image corresponding to a target lane. Motion trajectory points of a target vehicle driving on the target lane are obtained. The electronic device determines projected pixel coordinates of the motion trajectory points on the target image, and determines target pixel coordinates corresponding to target lane lines on the target lane based on the projected pixel coordinates. Once target camera coordinates corresponding to the target pixel coordinates are obtained, the electronic device labels the target lane lines according to the target camera coordinates.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations

Abstract

A semiconductor device includes a substrate, a plurality of epitaxial structures and a plurality of gate structures. The substrate includes a plurality of recesses and a plurality of convex portions. Each of the convex portions is located between the two adjacent recesses, in which each of a sidewall of the recesses includes at least two concave portions. Each of the concave portions includes a first inclined plane and an adjacent second inclined plane. The second inclined plane of one of the concave portions is adjacent to a first inclined plane of another one of the concave portions, such that the sidewall has a zig-zag shape. The epitaxial structures are located in the recesses of the substrate respectively. The gate structures are located on the convex portions of the substrate respectively.

IPC Classes  ?

• H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching
• H01L 21/3065 - Plasma etchingReactive-ion etching
• H01L 29/66 - Types of semiconductor device

Abstract

A semiconductor device includes a substrate, a plurality of first epitaxial structures, a second epitaxial structure and a plurality of gate structures. The substrate includes a STI, a plurality of first recesses, a plurality of convex portions and a second recess adjacent to the STI. One of the convex portions is located between the second recess and the first recess that is closest to the STI, and each of the other convex portions is located between the two adjacent first recesses, in which the second recess is deeper than the first recesses. The first epitaxial structures are located in the first recesses of the substrate respectively. The second epitaxial structure is located in the second recess, in which a volume of the second epitaxial structure is greater than a volume of the first epitaxial structure. The gate structures are located on the convex portions of the substrate respectively.

IPC Classes  ?

• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
• H01L 21/762 - Dielectric regions

Abstract

An adapter is configured to connect to a connector. The adapter includes a first housing and an electrical connector. The first housing is defined a first accommodating groove and a through hole communicating with each other. The electrical connector includes an electrical connecting portion, a supporting portion, and an elastic portion. The supporting portion connects the electrical connecting portion to the elastic portion. The supporting portion is accommodated in the through hole, and the electrical connecting portion extends through the first housing; the elastic portion extends from the supporting portion toward the first accommodating groove; the elastic portion is configured to be bent relative to the supporting portion, and the elastic portion is configured to electrically connect to a terminal. The present disclosure provides a connector and an opto-electric transmission assembly.

IPC Classes  ?

• G02B 6/42 - Coupling light guides with opto-electronic elements
• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
• H01B 11/22 - Cables including at least one electrical conductor together with optical fibres

Goods & Services

integrated circuit modules; semiconductor devices; integrated circuits; electronic chips; circuit boards; semiconductors; semiconductor apparatus; resistors; transistors; capacitors; transmitters of electronic signals; transceivers; radio transceivers; antennas; signal convertors; antenna filters; power amplifiers; amplifier tuners; signal tuners; electronic tuners; sensors; vibration detectors; computer software; computer firmware; computer hardware; components for electric circuits. assembly of products for others; providing information relating to material treatment; processing of semiconductor wafers; custom manufacture of semiconductor wafers; etching; custom manufacture of semiconductor circuits; custom manufacture of semiconductor components, devices and circuits. technological consultancy; technological research; research and development services; research and development of new products for others; scientific research; computer software research; telecommunications technology consultancy; engineering services relating to the design of communications systems; platform as a service (PaaS); creating and maintaining websites; computer software design; computer technology consultancy; design of integrated circuits; design services; inspection of goods for quality control; design services relating to computer hardware and to computer programmes; technical consultancy in relation to the production of semiconductors; research in the area of semiconductor processing technology.

Goods & Services

integrated circuit modules; semiconductor devices; integrated circuits; electronic chips; circuit boards; semiconductors; semiconductor apparatus; resistors; transistors; capacitors; transmitters of electronic signals; transceivers; radio transceivers; antennas; signal convertors; antenna filters; power amplifiers; amplifier tuners; signal tuners; electronic tuners; sensors; vibration detectors; computer software; computer firmware; computer hardware; components for electric circuits. assembly of products for others; providing information relating to material treatment; processing of semiconductor wafers; custom manufacture of semiconductor wafers; etching; custom manufacture of semiconductor circuits; custom manufacture of semiconductor components, devices and circuits. technological consultancy; technological research; research and development services; research and development of new products for others; scientific research; computer software research; telecommunications technology consultancy; engineering services relating to the design of communications systems; platform as a service (PaaS); creating and maintaining websites; computer software design; computer technology consultancy; design of integrated circuits; design services; inspection of goods for quality control; design services relating to computer hardware and to computer programmes; technical consultancy in relation to the production of semiconductors; research in the area of semiconductor processing technology.

Abstract

An obstacle identification method applied to a vehicle-mounted device is provided. The method includes collecting radar information and original image information. Fused image information is obtained by fusing the radar information with the original image information. Obstacle point cloud and non-obstacle point cloud are obtained from the fused image information, and the non-obstacle point cloud is filtered out from the fused image information. Once at least one radar point cloud group is obtained by grouping the obstacle point cloud, an obstacle corresponding to each group of the at least one radar point cloud group can be identified.

IPC Classes  ?

• G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
• G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
• G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles
• G06T 7/10 - SegmentationEdge detection
• G06T 7/70 - Determining position or orientation of objects or cameras
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

Abstract

A method for controlling vehicles, an electronic device and a storage medium are provided. In the method, a license plate image of a target vehicle in front of a vehicle to be controlled and point cloud data of the target vehicle through a radar are acquired. The license plate image is identified to obtain initial vehicle data of the target vehicle. Target vehicle data of the target vehicle is calculated based on preset ranges, vehicle data of the vehicle to be controlled, the point cloud data and the initial vehicle data. In response that the target vehicle data meets preset conditions, the vehicle data of the vehicle to be controlled is adjusted according to the target vehicle data. The method can improve an accuracy of vehicle detection and a driving safety.

IPC Classes  ?

• B60W 30/16 - Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
• G08G 1/017 - Detecting movement of traffic to be counted or controlled identifying vehicles

Abstract

A ground plane fitting method applied to a vehicle-mounted device is provided. In the method, the vehicle-mounted device acquires a plurality of point clouds of a scene front of a vehicle along a traveling direction and a target image and determines a set of ground point clouds corresponding to the target image according to the plurality of point clouds and the target image. The vehicle-mounted device further obtains multiple ground normal vectors by correcting multiple normal vectors of multiple cameras using to acquire the target images; and fits the ground plane in the traveling direction of the vehicle according to the set of ground point clouds and the obtained ground normal vectors to obtain a fitted ground plane. The method can improve an accuracy of the obtained ground normal vector, thereby effectively improving the accuracy of fitting the ground plane and assisting the safe of the self-driving vehicle.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• B60W 40/10 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to vehicle motion

Abstract

A laser radar device includes a light source module, a collimating module, an optical phase-controlled array, a processing module, and a receiving module. The collimating module collimates the laser beam emitted by the light source module. The optical phase-controlled array deflects the collimated laser beam and reflects the deflected laser beam for making the reflected laser beam to illuminate at a target object. The receiving module receives the laser beam reflected by the target object and converts the received laser beam into electric signals. The processing module calculate a distance between the laser radar device and the target object based on the received electric signals. An accuracy of calculating the distance between the laser radar device and the target object is improved.

IPC Classes  ?

• H01S 5/062 - Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 7/4915 - Time delay measurement, e.g. operational details for pixel componentsPhase measurement
• G01S 17/32 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
• H01S 5/042 - Electrical excitation
• G01S 7/499 - Details of systems according to groups , , of systems according to group using polarisation effects

Abstract

A method for detecting vehicle deviation, an electronic device and a storage medium are provided. In the method, a first foreground image is acquired, a first corrected image is obtained by performing a distortion correction on the first foreground image and an aerial view is obtained. Based on the aerial view, a distribution map of non-zero pixel points is generated. An initial position of a left lane line and an initial position of a right lane line in the aerial view are determined. A first curve corresponding to the left lane line and a second curve corresponding to the right lane line are fitted. It can be determined whether the vehicle deviates from any lane line according to a distance between the vehicle and any lane line. The method can effectively detect lane lines, and improve an accuracy of identifying lane line detection.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06T 3/00 - Geometric image transformations in the plane of the image
• G06T 7/12 - Edge-based segmentation
• G06T 7/194 - SegmentationEdge detection involving foreground-background segmentation
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration

Abstract

A pre-connector is configured to detachably fix to an optical fiber group. The pre-connector includes a shell assembly and a limiting member. The shell assembly is configured to accommodate one end of the optical fiber group. The limiting member is clamped in the shell assembly and is configured to press against the optical fiber group to fix the optical fiber group to the shell assembly. The present disclosure further provides a connector including the pre-connector.

IPC Classes  ?

• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

An on-board projection system that can adjust a display brightness of a projection image according to an interior environment of a vehicle comprises a vehicle terminal, a projection component, a vehicle entertainment system, a display component, and a sensing component. The vehicle terminal is communicated with the projection component, the vehicle entertainment system is communicated with the vehicle terminal and is further electrically connected to the projection component, the projection component is electrically connected to the display component. The display component is configured to display a projection image of the vehicle entertainment system, the sensing component is arranged on a side of the display component for detecting an interior environment of the vehicle. The projection component adjusts a display brightness of the projection image according to a detection result of the interior environment. The vehicle is also provided.

IPC Classes  ?

• G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
• B60K 37/02 - Arrangement of instruments

Abstract

A lane line recognition method applied to an electronic device is provided. In the method, the electronic device converts a first foreground image into a bird's-eye view (BEV) image and determines the initial positions of the left lane line and the right lane line of the BEV image and fits a first curve and a second curve after a first sliding window slid each time and fits a third curve and a fourth curve after a second sliding window slid each time. The electronic device recognizes the left lane line according to the second curve and the right lane line according to the fourth curve. The method improves accuracy for recognizing lane lines of a road when a vehicle is moving on the road.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06T 5/00 - Image enhancement or restoration

Abstract

A lane line detection method applied to a vehicle-mounted device is provided. In the method, the vehicle-mounted device converts a foreground image into a bird's-eye view (BEV) image, sets a peak of a horizontal histogram of the BEV image as a starting point for moving the sliding window, and generate a main lane line by fitting multiple non-zero pixels of the horizontal sliding window. The vehicle-mounted device calculates a confidence coefficient of each horizontal sliding window; and sets a previous one before the preset number of continuous horizontal sliding windows as a previous horizontal sliding window and determines an end point of the main lane line according to the previous horizontal sliding window when the confidence coefficients of preset number of continuous horizontal sliding windows are less than a predetermined threshold. The method improves accuracy of identifying lane lines.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06T 7/70 - Determining position or orientation of objects or cameras
• G06V 10/28 - Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns

Abstract

A recommendation method applied to an electronic device is provided. In the method, the electronic device determines an expected number of passengers getting off a compartment of a vehicle at each station. Based on a real-time number of passengers carried in the compartment and an expected number of passengers getting off the compartment, the electronic device can determine a remaining carrying space of the compartment and a recommended number of waiting passengers.

IPC Classes  ?

• G06Q 50/30 - Transportation; Communications

Abstract

A robot includes a limit device and an energy storehouse, the limiting device may lock or loosen a battery opened in the energy storehouse, the limiting device includes a first connecting member, a transmission rod, and a second connecting member. The first connecting member includes a first main body portion and two first connecting elements arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod includes a first end and a second end arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member includes two indexing buckles arranged at intervals, each of the indexing buckles includes a first limiting groove and a second limiting groove.

IPC Classes  ?

• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
• E05D 3/18 - Hinges with pins with two or more pins with sliding pins or guides
• F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Abstract

A method for recognizing human body area in image, an electronic device and a storage medium are provided. In the method, a human body area corresponding to a person in an image is recognized and the human body area is divided into a plurality of target areas according to a height of the human body area and a preset height ratio. A plurality of widths corresponding to the plurality of the target areas are acquired, and a first target width change relationship is determined. When the first target width change relationship does not match a preset standard width change relationship, the human body area is determined to be incomplete. The method can improve an accuracy of a human body area in an image recognition.

IPC Classes  ?

• G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestriansBody parts, e.g. hands
• G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
• G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
• G06V 10/776 - ValidationPerformance evaluation

Abstract

A lane line recognition method applied to an electronic device is provided. In the method, the electronic device obtains a target image comprising lane lines, and converts the target image into an aerial view of the lane lines. Once a left lane line curve and a right lane line curve are obtained by performing a curve fitting on the lane lines according to pixel points of the aerial view, the electronic device determines whether a recognition of the lane lines is accurate according to the left lane line curve and the right lane line curve.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06V 10/776 - ValidationPerformance evaluation

Abstract

An organic-inorganic composite electrolyte comprises a plurality of metal cations, a plurality of organic polymer groups, a plurality of negatively charged ion groups and a plurality of salt anions. At least part of the plurality of metal cations is combined with the plurality of organic polymer groups, the plurality of negatively charged ion groups and the plurality of salt anions via covalent bonds.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
• H01M 10/052 - Li-accumulators
• H01M 10/0567 - Liquid materials characterised by the additives
• H01M 10/0568 - Liquid materials characterised by the solutes

Abstract

An electronic device, applicable to a V2X system is disclosed. The electronic device includes a wireless transceiver and a processor. The wireless transceiver is configured to receive a first collective perception message from another device of the V2X system. The processor is coupled to the wireless transceiver, and the processor is configured to operate the following operations: determining whether to generate a second collective perception message according to the first collective perception message according to a first angle of the electronic device and a second angle of another device of the first collective perception message; and sending the second collective perception message to several surrounding devices surrounding the electronic device through the wireless transceiver.

IPC Classes  ?

• H04B 1/3822 - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

A method for segmenting roads in images implemented in an electronic device includes obtaining a road image; obtaining a plurality of regions of interest based on the road image; generating a splicing region based on the plurality of regions of interest; and inputting the splicing region into a pre-trained road segmentation model, and obtaining a road segmentation image and a segmentation result in the road segmentation image.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation
• G06T 5/20 - Image enhancement or restoration using local operators
• G06T 7/12 - Edge-based segmentation

Abstract

A crowding degree estimation method applied to an electronic device is provided. In the method, the electronic device determines a remaining carrying space of a carriage according to an image viewed from a top of an interior of the carriage, and determines a recommended remaining number of people that can be carried according to the remaining carrying space, the number of people already in the carriage, and a maximum number of people that can be carried of the carriage. The electronic device determines the crowding degree according to the recommended remaining number of people. The method can determine the crowding degree of each carriage of a public transportation and recommend passengers with less crowded carriages to save passengers' waiting time.

IPC Classes  ?

• G06V 20/52 - Surveillance or monitoring of activities, e.g. for recognising suspicious objects
• G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions

Abstract

The present disclosure relates to a field of intelligent driving technology field, and provides a method for recognizing anomalous lane line and an electronic device obtaining lane line recognition results of lane line images. The method includes: determining lane lines in the lane line images according to the lane line recognition results; determining one of the lane lines having a length greater than a first length threshold and having a straight line from the lane lines as the first lane line; masking the first lane line and determining mark points of the first lane; determining marking lines according to the mark points and the first lane line; dividing each of the lane line images according to the marking lines and obtaining a lane spacing area; and determining the lane lines in the lane spacing area of the lane line recognition results as abnormal lane lines.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06T 7/70 - Determining position or orientation of objects or cameras

Abstract

A method of determining a congestion degree of a compartment applied to an electronic device is provided. The electronic device determines a remaining carrying space of the compartment according to a binarized passenger distribution image of the compartment. A predicted remaining number of passengers that can be carried in the compartment is determined according to the remaining carrying space. The electronic device determines a recommended remaining number of passengers that can be carried in the compartment based on a number of passengers currently in the compartment, the predicted remaining number of passengers, and a maximum number of passengers that can be carried in the compartment. The electronic device can determine the degree of congestion of the compartment according to the recommended remaining number of passengers that can be carried in the compartment and the maximum number of passengers that can be carried in the compartment.

IPC Classes  ?

• G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
• G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]Salient regional features
• G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries
• G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestriansBody parts, e.g. hands

Abstract

A method for detecting lane lines, applied in an electronic device, includes: obtaining road images, and obtaining a splice area by performing an image processing on the road images; inputting the splice area into a preset trained lane line detection model and obtaining lane line detection images; and obtaining transformed images and lane line detection results of the transformed images by performing an image transformation on the lane line detection images. The application is able to improve an accuracy of detecting lane lines.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

Abstract

A driving route planning method applied to an electronic device is provided. The method includes acquiring an image when a vehicle is driving. Target route information is obtained by inputting the image into a target route planning model. Once a first embedding vector of the target route information is extracted, a driving route corresponding to a driving style is obtained by inputting the first embedding vector into a target driving style model.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance
• G01C 21/36 - Input/output arrangements for on-board computers
• G06N 3/08 - Learning methods

Abstract

The present application provides a silicon-carbon composite material. The silicon-carbon composite material comprises a plurality particles. Each of the plurality of particles comprises a silicon nanoparticle; a first carbon layer wrapping a surface of the silicon nanoparticle; a second carbon layer wrapping the first carbon layer; and an elastic layer wrapping the second carbon layer. The silicon nanoparticle comprises a silicon matrix and at least one doping element located in the silicon matrix. Methods for preparing the silicon-carbon composite material and for preparing a silicon-carbon composite slurry are further provided.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

Abstract

An independent graphics card system comprises an expansion motherboard, a system power supply, at least one expansion graphics card and a fan assembly. The system power supply is electrically connected to the expansion motherboard. The at least one expansion graphics card is plugged into the expansion motherboard through an adapter card. The at least one expansion graphics card is parallel with the expansion motherboard. The fan assembly dissipates heat of the at least one expansion graphics card.

IPC Classes  ?

• G06F 1/18 - Packaging or power distribution
• G06F 1/20 - Cooling means
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

An image recognition method applied to an electronic device is provided. The method includes obtaining a recognition region and a plurality of test regions. A plurality of first prediction results is obtained by predicting each of the plurality of test regions using a first recognition model. A prediction accuracy rate is calculated. A plurality of target regions is obtained from the plurality of test regions, and a second recognition model is obtained by adjusting the first recognition model based on the prediction accuracy rate and the plurality of target regions. An initial feature matrix is obtained by inputting the recognition region in the second recognition model. A target vector is generated according to a target feature matrix and an initial weight matrix; and a recognition result of the image to be recognized is obtained by inputting the target vector into the second recognition model.

IPC Classes  ?

• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06T 7/10 - SegmentationEdge detection
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components

Abstract

An image classification method applied to an electronic device is provided. The method includes obtaining prediction results of a plurality of test images. A plurality of target images is determined according to the prediction results, and a prediction accuracy rate of a first classification model is calculated based on the plurality of target images. A second classification model is obtained according to the plurality of target images. An initial feature matrix is obtained using the second classification model. An input feature matrix is obtained by performing a dimension raising process on an initial feature matrix. Once a target weight matrix is obtained based on an initial weight matrix, and a target vector is generated according to the target weight matrix and the input feature matrix, a classification result of an image to be classified is obtained by inputting the target vector into a classification layer.

IPC Classes  ?

• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries
• G06V 10/762 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using clustering, e.g. of similar faces in social networks
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks

Abstract

An electrostatic eliminating device comprises an electrostatic input terminal, an electrostatic absorption circuit, an electrostatic output terminal. The electrostatic absorption circuit is configured to absorb static electricity accessed to the input end of the electrostatic absorption circuit. The electrostatic input terminal is connected with the door handle, and the electrostatic output terminal is connected with the door handle or the human body to form a circuit, so that the electrostatic ab sorption circuit can absorb the incoming electrostatic charges to avoid the concentration of electrostatic charges on the door handle, which may cause the user to feel electric shock when touching the door handle.

IPC Classes  ?

• B60R 16/06 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for carrying-off electrostatic charges

Abstract

A method for detecting workpiece based on homogeneous multi-core architecture is illustrate. The method comprises: obtaining detecting images of detecting workpieces; identifying detecting areas of the detecting workpieces in the detecting images; dividing the preset rotation angle to obtain the rotation accuracy and initial rotation angles; based on each of the initial rotation angles, rotating the detecting areas to obtain a rotation area of each of the initial rotation angles; calculating similarity values between each of the rotation areas and a preset qualified area, and determining a largest similarity value as the target similarity value; and when the rotation accuracy is greater than or equal to a preset accuracy, identifying whether the detecting workpiece is a qualified workpiece according to the target similarity value and a preset similarity threshold.

IPC Classes  ?

• G05B 19/402 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position

Abstract

A package structure includes a bonding substrate, an integrated circuit, and a heat sink metal. The integrated circuit includes an active region facing the bonding substrate. The heat sink metal is located between the bonding substrate and the active region of the integrated circuit. The heat sink metal is electrically insulated with the integrated circuit.

IPC Classes  ?

• H01L 23/367 - Cooling facilitated by shape of device
• H01L 23/00 - Details of semiconductor or other solid state devices

Abstract

A method for collision warning implemented in an electronic device includes fusing obtained radar information and image information; recognizing at least one obstacle in a traveling direction of a vehicle according to the fused radar information and image information; determining motion parameters of the at least one obstacle and the vehicle according to the radar information and the image information; and calculating a collision time between the vehicle and the at least one obstacle according to the motion parameters, and issuing a collision warning.

IPC Classes  ?

• G08G 1/16 - Anti-collision systems
• G01S 7/40 - Means for monitoring or calibrating
• G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
• G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles
• G06T 7/20 - Analysis of motion
• G06T 7/579 - Depth or shape recovery from multiple images from motion
• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads

Abstract

A head-mounted device comprises a main body, a monitor-base, a monitor, and an adjusting component. The main body is mounted on a user's head. The monitor moves with the monitor-base. An eyes-monitor distance is defined between the user's eyes and the monitor. A visual range is defined by a range seen by the user's eyes through the monitor. The adjusting component is configured for pulling or pushing the monitor-base towards the user's eyes to prevent the eyes-monitor distance from increasing and to prevent the visual range from decreasing. When the user wears a pair of glasses between the user's eyes and the monitor, and the glasses block the monitor causing the eyes-monitor distance to be larger than a preset distance, the adjusting component pulls or pushes the monitor-base until the monitor contacts the glasses, to prevent the eyes-monitor distance from increasing. An augmented reality device is also disclosed.

IPC Classes  ?

• G06F 1/16 - Constructional details or arrangements

Abstract

A graphene heating chip includes a substrate, an insulating layer, a graphene film, and a plurality of electrodes. The substrate has two opposite a first surface and a second surface, and the substrate defines a through hole. The insulating layer is suspended on the substrate. The insulating layer covering the through hole and not in direct contact with the first surface is defined as a window, and a plurality of grooves are formed on the window. The graphene film covers the window, and the graphene film includes a first graphene film portion and a second graphene film portion, and the first graphene film portion and the second graphene film portion are spaced apart from each other. The plurality of electrodes are located on the surface of the insulating layer away from the substrate. The present application also provides a method for making the graphene heating chip.

IPC Classes  ?

• H05B 3/14 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
• H05B 3/03 - Electrodes

Abstract

A graphene heating chip includes a substrate, an insulating layer, a graphene film, and a plurality of electrodes. The substrate has two opposite a first surface and a second surface, and the substrate defines a through hole. The insulating layer is suspended on the substrate. The insulating layer covering the through hole and not in direct contact with the first surface is defined as a window, and a plurality of grooves are formed on the window. The graphene film covers the window, and the graphene film includes a first graphene film portion and a second graphene film portion, and the first graphene film portion and the second graphene film portion are spaced apart from each other. The plurality of electrodes are located on the surface of the insulating layer away from the substrate. The present application also provides a method for calibrating a temperature of the graphene heating chip.

IPC Classes  ?

• G01K 15/00 - Testing or calibrating of thermometers
• G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
• H05B 3/03 - Electrodes
• H05B 3/14 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic

Abstract

A magnetically-isolated wireless charging assembly enabling temporary attachment by magnetism to a device requiring charge by induction includes a housing defining an accommodating space, a plurality of magnetic members disposed within the accommodating space, a wireless charging receiver covering the plurality of magnetic members, and a wireless charging receiver. The wireless charging receiver is disposed on a side of the magnetic shielding member facing the plurality of magnetic members and the magnetic shielding member prevents the magnetic field of the magnetic members extending through or beyond the shielding member.

IPC Classes  ?

• H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
• H01F 27/36 - Electric or magnetic shields or screens
• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Abstract

A distance measurement method is provided and includes: in response to a distance detection instruction, determining a first position where a pupil of a user is located. An included angle between the pupil and an electronic device is determined based on the first position and a second position where the electronic device is located. Once a first distance between the pupil and the electronic device is determined, a second distance between a waveguide sheet in a pair of smart glasses worn by the user and the pupil is calculated according to the included angle and the first distance.

IPC Classes  ?

• G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
• G02B 27/01 - Head-up displays
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

Abstract

A semiconductor device includes a substrate, an epitaxial layer, a well region, a source region, a base region, a first JFET region, a second JFET region, a gate dielectric layer and a gate layer. The epitaxial layer is at a side of the substrate. The well region is in the epitaxial layer. The source region is in the well region. The base region is in the well region and adjacent to the source region. The first JFET region is adjacent to the well region. The second JFET region is in the first JFET region. A doping concentration of the second JFET region is higher than a doping concentration of the first JFET region. The gate dielectric layer is at a side of the epitaxial layer away from the substrate. The gate layer is at a side of the gate dielectric layer away from the epitaxial layer.

IPC Classes  ?

• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
• H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
• H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
• H01L 29/66 - Types of semiconductor device

Abstract

A method for detecting image sizes using a computer device is provided. In the method, the computer device obtains a pre-trained image processing model and an input image, establishes a stack according to a number of network layers of the pre-trained image processing model. Output feature maps are obtained by processing the input image using the pre-trained image processing model. Image sizes of the output feature maps are detected. The image sizes are written into the stack in sequence, and the network layers deleted iteratively in an order from large to small according to an execution sequence of the network layers of the pre-trained image processing model until the stack is full. By performing the method, output sizes of the input image can be obtained, and a detection efficiency of image sizes can be improved.

IPC Classes  ?

• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06T 1/60 - Memory management
• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
• G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding

Abstract

A machine learning method includes: distinguishing foregrounds and backgrounds of a first image to generate a first mask image; cropping the first image to generate second and third images; cropping the first mask image to generate second and third mask images, wherein a position of the second mask image and a position of the third mask image correspond to a position of the second image and a position of the third image, respectively; generating a first feature vector group of the second image and a second feature vector group of the third image by a model; generating a first matrix according to the first and second feature vector groups; generating a second matrix according to the second and third mask images; generating a function according to the first and second matrices; and adjusting the model according to the function.

IPC Classes  ?

• G06T 7/194 - SegmentationEdge detection involving foreground-background segmentation
• G06T 7/11 - Region-based segmentation

Abstract

A mouse device is disclosed. The mouse device is coupled to a computer device. The mouse device includes a first button, a second button, and a processor. The processor is configured to generate at least one signal according to a first state of the first button and a second state of the second button at the same time, and the processor is configured to transmit the at least one signal to the computer device, so that the computer device performs one of a copy operation and a cut operation according to the at least one signal.

IPC Classes  ?

• G06F 3/04812 - Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
• G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
• G06F 3/04842 - Selection of displayed objects or displayed text elements

Abstract

The present application provides a method of preparing lithium-friendly colloid paint. The method comprises functionalizing a carbon nanotube material to obtain a plurality of carbon nanotubes with functional groups; dispersing the of carbon nanotube material with functional groups in a solution containing nitrogen molecules to from the dispersion liquid to obtain a carbon nanotube precursor; heat-treating the carbon nanotube precursors to obtain a plurality of nitrogen-doped carbon nanotubes; dispersing the plurality of nitrogen-doped carbon nanotubes in an organic solvent, and adding a dispersant obtain a nitrogen-doped carbon nanotube solution precursor; and providing a polymer material colloid and a lithium salt, and uniformly mixing the nitrogen-doped carbon nanotube solution precursor, the lithium salt and the polymer material colloid.

IPC Classes  ?

• C09D 5/02 - Emulsion paints
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers

Abstract

A display device includes a first substrate, a plurality of light-emitting diodes, a first wavelength conversion layer and a metasurface. The light-emitting diodes are arranged on the first substrate, in which the light-emitting diodes emit a first color light, and the light-emitting diodes includes a first light-emitting diode, a second light-emitting diode and a third light-emitting diode. The first wavelength conversion layer is on the first light-emitting diode, and configured to convert the first color light emitted from the first light-emitting diode into a second color light, in which the second color light is different from the first color light. The metasurface is above the first wavelength conversion layer, and configured to reflect the first color light and pass the second color light.

IPC Classes  ?

• H01L 33/50 - Wavelength conversion elements
• H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

Abstract

The present disclosure provides a bolometer including a substrate, a reflecting mirror on the substrate, and a temperature sensing unit above the reflecting mirror. The temperature sensing unit includes a first insulating layer, a thermistor on the first insulating layer, a second insulating layer on the thermistor, an electrode layer in the second insulating layer and right above the thermistor, and a metal meta-surface in the second insulating layer and right above the electrode layer. The electrode layer includes a plurality of electrodes separated from each other. A projection region of the metal meta-surface on the thermistor is equal to or larger than the thermistor.

IPC Classes  ?

• G01J 5/08 - Optical arrangements
• G01J 5/02 - Constructional details
• G01J 5/0813 - Planar mirrorsParallel phase plates
• G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices

Abstract

An optical assembly and projection device using the same. The optical assembly configured for converting light defined by a light path. A color wheel includes at least two color circles, the at least two color circles are arranged concentrically and each includes a plurality of color zones. A first drive assembly connect to the color wheel, the first drive assembly is configured for driving the color wheel to rotate, and the plurality of color zones of each of the at least two color circles are illuminated by the light in the light path. A second drive assembly connect to the first drive assembly, the second drive assembly is configured for driving the color wheel in a first direction, and each of the at least two color circles is illuminated a light beam defined by the light path, the first direction intersects with a directional extension of the light path.

IPC Classes  ?

• H04N 9/31 - Projection devices for colour picture display