Abrégé

The present invention relates to a system and method for passive optical monitoring of the concentration of multiple gases and/or multiple parameters at multiple points for obtaining and monitoring the methane concentration in offshore platforms and onshore structures, and also in the fields of mining, landfills and other industrial sectors. The system consists in the sending, by a remote fibre optic unit, of a frequency-modulated light pulse (intra-pulse modulation) that is optically selected and directed at optical splitters and delay lines for various measurement points of interest, giving rise to multiple signals that interact with the methane gas in reflective sensors, that is, sensors that reflect light, returning to the remote unit a time signal from N point sensors, which is detected by a single optical receiver and the time signals of which are analysed individually by calculating the fast Fourier transform (FFT). The FFT signal thus obtained contains an amplitude A0 at the zero frequency or DC component, f0, an amplitude A1 at the same modulation frequency as the laser, f1, and an amplitude A2 at twice the original laser frequency, f2 = 2 x f1. In this way, the system makes it possible to obtain the concentrations (C) from the N sensors on the basis of the amplitudes A0, A1 and A2, by calculating the mean (M) between log(A2/A0) and log(A2/A1), that is, M = ½ × [log(A2/A0) + log(A2/A1)], and a calibration curve, where M is invariant with respect to the optical loss of the fibre optic links and depends solely on the concentration.

Classes IPC  ?

• G01M 3/38 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation de la lumière
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes

Abrégé

The present invention relates to an electric energy grid monitoring system comprising a plurality of optical fiber Bragg grating sensors (FBG) (005; 007; 011; 019; 021) arranged at points of interest in the electric energy grid to monitor parameters of interest of the electric grid, and an interrogator (001) for sending a light signal to the optical FBG sensors (005; 007; 011; 019; 021) and collecting the return light. In this configuration, variations in the wavelength of the return light from each of the optical FBG sensors (005; 007; 011; 019; 021) correspond to variations in the parameters of interest of the electric energy grid. The proposed system further comprises at least one primary optical fiber cable (003) to convey the light signal from the interrogator (001), and an optical fiber splitter (029) connected to the primary optical fiber cable (003) to split the light signal from the interrogator (001) to a plurality of secondary optical fiber cables (028). Each of the secondary optical fiber cables (028) is connected to one of the plurality of FBG sensors (005; 007; 011; 019; 021) to convey the light signal from the interrogator (001) to the plurality of optical FBG sensors (005; 007; 011; 019; 021).

Classes IPC  ?

• G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
• G01K 11/3206 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant des changements dans la transmittance, la diffusion ou la luminescence dans les fibres optiques en des endroits distincts de la fibre, p. ex. utilisant la diffusion de Bragg
• G01R 15/24 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs modulateurs de lumière

Abrégé

The present utility model relates to an arrangement in a passive adapter device for current sensors, the device comprising: a core case comprising two components, wherein each component houses a magnetic core and each component comprises a concavity to form a passage allowing the core case to be arranged around an electric conductor when the case is in the closed position; and an optical case attached to the side of the core case and accommodating, next to the magnetic cores, an optical fiber sensor (Fiber Bragg Grating or FBG) that can be connected to an optical fiber cable and attached to a magnetostrictive element.

Classes IPC  ?

• G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
• G01K 11/12 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant le changement de couleur, de translucidité ou de réflectance
• G01R 19/03 - Mesure des valeurs efficaces, c.-à-d. des valeurs moyennes quadratiques utilisant des thermoconvertisseurs

Abrégé

The present invention relates to optical sensor cable arrangements in underground power distribution lines, comprising at least one housing structure (15), a plurality of electric conductors (13) inside the at least one housing structure (15) and at least one optical FBG sensor cable (1) inside the at least one housing structure (15), wherein the optical FBG sensor cable (1) is designed for monitoring at least one parameter from among the temperature or the acoustic vibrations of the plurality of electric conductors (13). Each sensor cable arrangement is such that the optical FBG sensor cable (1) is disposed parallel to and outside the plurality of electric conductors (13).

Classes IPC  ?

• H02G 9/06 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau dans des tubes ou conduits souterrainsLeurs tubes ou conduits
• G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
• G01K 11/3206 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant des changements dans la transmittance, la diffusion ou la luminescence dans les fibres optiques en des endroits distincts de la fibre, p. ex. utilisant la diffusion de Bragg
• G01R 15/24 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs modulateurs de lumière

Abrégé

The present invention describes a novel method for compensating chromatic dispersion in band-limited digital signals applied to optical-fibre communication systems with long-distance, high-symbol-rate connections, that are subject to distortion caused by the propagation of communication signals and require compensation of the dispersion, that is intended to reduce the complexity of the chromatic dispersion compensation, taking advantage of the particular shape of the second-order dispersion filter.

Classes IPC  ?

• H04B 10/2513 - Dispositions spécifiques à la transmission par fibres pour réduire ou éliminer la distorsion ou la dispersion due à la dispersion chromatique

Abrégé

A new modular battery model for a temperature management and monitoring system, which has a physical mechanical array of lithium-ion cells for use in individual battery management systems (BMSs), offering an integrated heat/electrical power management solution for electrical mobility, applied in the field of smart batteries for supplying a defined charge for a specified period of time, with management and monitoring of temperature, being capable of providing power to an electrical system of up to 48V with adjustable capacity, measuring the voltage at the terminals of each component cell, identifying the under- and overvoltage conditions, measuring the current between the cells and identifying excess current and short-circuit conditions in the system, and further monitoring the temperature in the cells, identifying conditions of too low and too high a temperature and detecting defects in the monitoring of the internal temperature of the battery, being able therewith to form arrays of up to 14 cells, focusing on the individual charge of each cell.

Classes IPC  ?

• G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
• H01M 10/60 - Chauffage ou refroidissementCommande de la température
• H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte

Abrégé

Bluetooth Bluetooth electronic beacons (beaconsBluetooth electronic beacons (beacons) and other applications such as mobile devices requiring tuned signals or gain/performance variations.

Classes IPC  ?

• H01Q 1/38 - Forme structurale pour éléments rayonnants, p. ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant

Abrégé

The present invention describes a closed-loop electronic control method for regulating the power of a direct current bus and at the same time controlling the switching of energy conversion power semiconductors in a model-based predictive control system (MBPC) for use in actuating electric motors. This regulation is based on a predictive control strategy and is performed by applying phasor modulation technology, which acts directly upon the actuation of the circuit that controls the frequency and magnitude of the voltage source connected to the electric machine. This method allows coupling the inverter to an energy source, such as a battery or an electrical grid, without requiring a CC/CC converter, with improved efficiency and less fluctuation of the bus voltage.

Abrégé

Applications based on voice processing, which detect spoofing attacks in voice signals, using the phase information of the signal in the frequency domain. The invention applies principally to systems using voice-based biometrics, with the aim of preventing a signal already used as entry into the system, in lists or in acknowledgements of the user, from being reused, even if said signal undergoes alterations or only a part thereof is reutilized. The invention is capable of detecting a broad range of attacks, focusing on replay, when a sound component (partial or complete, with or without alterations) already used by the legitimate user is re-submitted by another user on the system. An alternative embodiment of the invention further extends fraud detection to cases of distortion in the sound duration scale.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06F 17/15 - Calcul de fonction de corrélation
• G10L 17/20 - Transformations de motifs ou opérations ayant pout but d’augmenter la robustesse du système, p. ex. contre le bruit du canal ou les différentes conditions de fonctionnement

Abrégé

A cabinet for mounting electric energy meters for centralised measurement comprises a box (2) in the shape of a cube with rounded corners and having at one end a flat edge (3); a front cover (4) that fits into the flat edge (3) of the box (2) with a safety lock (5) and is attached by means of top hinges (6); a double fastening strap (8) arranged on the rear side of the box (2) that forms the cabinet (1) for fastening the cabinet (1) to a post or another outer structure; fastening devices (12) for mounting electric energy meters (9) and the cabinet monitor (10), an internal clamp (11) for preventing illicit removal of the electric energy meters (9) and cabinet monitor (10); an optical bus bar (13) and optical LEDs (14) for identifying each electric energy meter (9) suitably mounted in the cabinet (1); a cable inlet (7) for the input terminal (17) that comprises a cover (18) with a clamp (19) and a cable outlet (20) from the cabinet (1); phase blades (15) and neutral blades (16).

Classes IPC  ?

• G01D 11/24 - Boîtiers
• G01R 1/04 - BoîtiersOrganes de supportAgencements des bornes

Abrégé

A modulated monophasic, biphasic and triphasic electric energy electronic meter comprises a cabinet having a regular geometric shape for housing the electric energy measurement components inside same. The cabinet having a knife blade-like fitting (3f) for connection to the line of the electric energy provider; terminals (4d) for connecting the load to the consumer; and an optical transmitter arranged on the rear portion for allowing the meter to be automatically identified by panels or cabinets equipped with optical receivers.

Classes IPC  ?

• H02B 1/03 - Tableaux, panneaux, pupitresParties constitutives ou accessoires pour compteurs d'énergie
• H02B 1/30 - Enveloppes du type armoireParties constitutives ou accessoires
• H02B 1/40 - Coffrets murauxParties constitutives ou accessoires

Abrégé

This invention relates to a device that links a digital electricity meter to a remote usage display such that there is no possibility of operational error and, in 100% of cases, a meter with remote display is installed in which the logical association between the meter and the display can be correctly implemented.

Classes IPC  ?

• G01R 21/133 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance en utilisant des techniques numériques

Abrégé

Electronic electricity meter with integrated digital-certification mechanism for secure communication, comprising current sensors 1(a), voltage sensors (b), electronic circuit (c) for conditioning the current signals and voltage signals in the electrical levels required by the processing unit (d), processing unit (d) able to continuously sample the current signals and voltage signals provided by the circuit (c) and that reflect, using a known ratio, the real value of the current and voltage delivered to the meter connection terminals, the processing unit (d) calculates the active and passive through energy and determines the energy values to be counted, and a communication unit (e), linked to the processing unit (d), which uses a digital data protocol and a physical interface to communicate with the world outside the meter, and a processing unit with digital certification functions (f) located between the processing unit (d) and the communication unit (e), in which the processing unit with digital verification functions (UPFCD) is intended to encrypt and sign all of the data made available, using the data protocol of the communication unit (e), to the outside world, such that the electronic relationship with the meter in terms of data communication is governed by the use of the digital certification technique natively and non-separably.

Classes IPC  ?

• G08C 17/02 - Dispositions pour transmettre des signaux caractérisées par l'utilisation d'une voie électrique sans fil utilisant une voie radio
• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
• H04L 9/14 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité utilisant plusieurs clés ou algorithmes

Produits et services

Computer software for managing, operating, administering, developing, testing, modeling, repairing and tracking communications networks destined for telecommunications [, electric, governmental and financial sectors ]; computer software for customer care, billing, workforce management, outside plant management, switch management, optical supervision, optical simulation, IP access management, remote supervision, and equipment supervision, for use in telecommunications, electric, governmental and financial sectors