WO2019125197A1 - Procédé et système de contrôle automatique de conducteur à contact de moyen de transport électrique - Google Patents

Procédé et système de contrôle automatique de conducteur à contact de moyen de transport électrique Download PDF

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Publication number
WO2019125197A1
WO2019125197A1 PCT/RU2017/000949 RU2017000949W WO2019125197A1 WO 2019125197 A1 WO2019125197 A1 WO 2019125197A1 RU 2017000949 W RU2017000949 W RU 2017000949W WO 2019125197 A1 WO2019125197 A1 WO 2019125197A1
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WO
WIPO (PCT)
Prior art keywords
antenna
temperature
force
contact wire
sensors
Prior art date
Application number
PCT/RU2017/000949
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English (en)
Russian (ru)
Inventor
Александр Васильевич СОРОКИН
Василий Олегович КИСЛИЦЫН
Владимир Анатольевич КАЛИНИН
Original Assignee
Научно-Технический Центр "Радиотехнических Устройств И Систем" С Ограниченной Ответственностью
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Научно-Технический Центр "Радиотехнических Устройств И Систем" С Ограниченной Ответственностью filed Critical Научно-Технический Центр "Радиотехнических Устройств И Систем" С Ограниченной Ответственностью
Priority to EA202091163A priority Critical patent/EA202091163A1/ru
Priority to PCT/RU2017/000949 priority patent/WO2019125197A1/fr
Priority to RU2020119146A priority patent/RU2750823C1/ru
Publication of WO2019125197A1 publication Critical patent/WO2019125197A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/12—Trolley lines; Accessories therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/24—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of the velocity of propagation of sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
    • G01K11/265—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies using surface acoustic wave [SAW]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G01L1/162—Measuring force or stress, in general using properties of piezoelectric devices using piezoelectric resonators
    • G01L1/165—Measuring force or stress, in general using properties of piezoelectric devices using piezoelectric resonators with acoustic surface waves
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers

Definitions

  • the invention relates to the field of radio engineering and remote control of contact connections of current-carrying parts and can be used for remote monitoring of railway infrastructure in monitoring compensating devices and providing remote monitoring of breaks, sagging and accelerated wear of the contact cable "KP" and current collectors.
  • High-speed train traffic imposes strict requirements on the facilities and devices of the railway transport infrastructure, in particular, on the contact network, on the mechanical strength, geometric parameters and technical condition of the elements of which the safety and uninterrupted train traffic depend.
  • the prior art known control system parameters of the contact network of the railway (see [1] the RF patent for utility model N ° 68977, IPC W60M1 / 12, publ. 10.12.2007), containing the sensor of the suspension height of the contact wire, the sensor position of the contact wire in plan, ambient air temperature sensor, power source, signal acquisition and transmission unit, control panel, device for determining the position of the contact wire in plan with position sensors of the contact wire placed in it, sensors for interfering with the current collection process and block ohm collecting and transmitting information, the input unit of voice comments, the output of which is connected to one of the inputs of the signal processing unit, and the output of the contact wire suspension height sensor is connected to one of the inputs of the device for collecting and transmitting information to determine the position of the contact wire in the plan, and the source
  • the power supply of the monitoring system is made with an integrated optical channel and contains an AC voltage to DC converter, a DC voltage converter of the onboard network of the railcar to AC ix high frequency transformer with a magnetic circuit formed of
  • the disadvantages of the system include the presence of power sources of sensitive elements, the lack of resistance to external climatic influences of the system components.
  • the reliability of the system here depends on the transformer, whose device is vulnerable to damage in severe climatic conditions of operation.
  • a device for measuring and recording wear of a contact wire is known (see [2] RF patent NS2120866, IPC ⁇ 60 ⁇ 1 / 12, ⁇ 60 ⁇ 1 / 13, B60L3 / 12, publ. 10/27/1998), containing a linear light source longer than the maximum possible distance between the extreme positions of the zigzag of the contact wire and the reflector placed on the roof of the laboratory car, while the light source is optically connected via a contact wire to the optoelectronic head containing the lens and the integral multi-element photo-receiving ruler.
  • the output of the optoelectronic head is connected to the input of the electronic unit of primary information processing, the output of which is connected to the computer.
  • the device measures the wear, height of suspension and zigzag of the contact wire and allows to increase the accuracy, speed, simplify the design and increase the reliability in operation and configuration.
  • the disadvantages of the system include the high probability of obtaining unreliable information by obtaining data from cameras in conditions of poor visibility and severe climatic conditions of operation. Also disadvantages of the known control systems of the state of the contact network with the help of laboratory cars are that these measurements are periodic, and it is not possible to monitor the stress-strain state of the elements of the contact network.
  • a device for monitoring wear and zigzag of the contact wire of an electrical network of railway transport contains a sensor, a photodetector associated with a flexible sensor fiber cable, memory unit, recorder.
  • the sensor contains a high-frequency generator, a meter based on inductors, a signal processing unit of the meter, an analog-to-digital converter and a LED.
  • the disadvantages of the device include the connection of the sensor and photodetector fiber optic cable.
  • the presence of a high-frequency generator at the sensor indicates the need to use power sources.
  • the use of fiber to transmit information from the sensor to the photodetector significantly increases the complexity of the use of such a device in railway transport.
  • the disadvantages of the known solution include the need to use power sources, greater complexity in installation and configuration in railway transport, the lack of control over the temperature of the contact wire. .
  • a known system of diagnostics and remote monitoring (SDUM) of the railway contact network (see [5] is the RF patent N ° 2631891, IPC ⁇ 60 ⁇ 1 / 12, publ. September 28, 2017), including anchored, contact wires, cable and load compensating devices containing located along the contact network on all its length measuring devices connected to stationary information collection and transmission units along the contact network that are connected via wired and / or wireless communication with an intermediate information hub SDUM located at a node station connected via wired and / or wireless communication with a single information hub on the state of the elements of the contact network of the railway, while the measuring devices are made in the form of sensors measuring the tension force of the cables and wire in the contact network located on the sections of the carrying cable and the contact wire directly behind the rollers of the load compensating units and / or above the garlands of the cargo compensating devices and / or on the middle anchoring cables, each measuring device is connected via wire to the nearby information collection and transmission unit , each of which contains an independent power source, a microprocessor device for the primary
  • the disadvantages of the system are the availability of power sources, the lack of temperature control of the contact wire, high labor intensity during installation.
  • the closest analogue is the method and system of diagnostics and remote monitoring of the railway contact network (see [6] RF patent NS2444449, IPC ⁇ 60 ⁇ 1 / 12, publ.10.03.2012) collecting information on the status of the elements of the contact network, transmitting the collected information and subsequent assessment the technical condition of the elements of the contact network, and the collection and transmission of information about the state of the elements of the contact network is carried out by means of collecting and transmitting information SDUM, stationary placed along the contact network along its entire length, while Acoustic and vibration characteristics, characteristics of changes in the magnetic field, temperature of the contact network elements, measured values are transmitted through the radio channel to the intermediate information hubs located at the nodal stations along the entire length of the contact network, which collect and analyze information from the sensors.
  • the system of diagnostics and remote monitoring of the railway contact network includes consoles placed on anchor supports of a contact network, a carrier cable, strings, a contact wire, load compensating devices of a carrying cable and a contact wire and contains sensors for parameters of the technical condition of the contact network elements, and on sections of the carrying cable and contact wires located directly behind the rollers of the blocks of cargo-compensating devices and / or over the garlands of goods load compensating devices that are placed on the anchor supports of the catenary network, along the entire length of the catenary network, information collection and transmission units are fixed; each information collection and transmission unit contains a set of sensors for the technical status of the catenary elements, including vibro-acoustic sensors and vibrodiagnostics of catenary elements , magnetic field sensor and temperature sensor, as well as an independent power source, microprocessor device for the primary analog-digital image processing information from the sensors of the block, a radio communication device
  • the disadvantages of the method and system include the availability of power sources that require maintenance (replacement), limited resistance to external influencing factors (negative operating temperatures), the complexity of the information collection and transmission unit and its high cost, high labor consumption in railway transport, the lack of control the tension of the contact wire.
  • the known technical solution does not allow promptly estimating the tension force of the wires and cords of the contact network.
  • the objective of the invention is the provision of operational, autonomous, wireless monitoring of the contact wire of the contact network of railway transport to prevent and timely prevent breaks, sagging and accelerated wear of the contact wire "KP" and contact connections in a wide range of influencing factors.
  • the problem is solved by polling the reading device of temperature sensors and the tension force of the contact wire over the air. Information from passive sensors allows you to quickly analyze the dynamics of changes in the state of the contact wire. The obtained information is transmitted to mobile diagnostic systems or automated user management systems.
  • the technical result is the prevention of emergency situations due to the ability to predict the achievement of specified control values of the state of wires and cables for issuing appropriate commands to take the necessary measures.
  • a device for reading temperature information generates and sends a query signal to the temperature sensor being polled, while the incoming query signal goes to the antenna of the opposite-pin temperature sensor converter, which converts the electromagnetic survey signal into a surface acoustic wave propagating along the surface the piezoelectric substrate of the temperature sensor, partially reflected from the starting, intermediate and final reflecting structure, and returns to the counter-pin converter, where it is converted back into an electromagnetic signal in the form of delayed reflected pulses returning to the device for reading temperature information using a transceiver antenna;
  • a device for reading information about the tension force of the contact wire generates and sends an interrogation signal to the interrogated force sensor, which is
  • the technical result is also achieved due to the system of automatic control of the contact wire of the electric transport placed on the reinforced concrete support, to which the supporting cable is attached, the compensator unit suspended on the cable by means of rollers, the contact wire, due to temperature sensors and tension force of the contact wire, a device for reading information temperature and tension force of the contact wire from the sensors, ultrasonic receiver with antenna and radiator with antenna, while temperature sensors are made in de wireless RF passive temperature sensors with an external slot antenna mounted on the contact wire, and the force sensors tensioning the contact wire are in the form of wireless radio frequency passive sensors of force, installed with the help of fasteners in the gap cable in places between the anchor bracket with a rod and suspension insulators, as well as in the gap cable of the compensator unit.
  • Wireless radio frequency passive temperature sensors are acoustoelectronic passive radio frequency sensors on surface acoustic waves, containing a sensitive element in the form of a piezoelectric substrate, on the surface of which there is an interdigital transducer connected to the antenna, and at least three reflecting structures sequentially arranged along the surface of the piezoelectric substrate, and the antenna of the interdigital transducer is connected to an external slot antenna.
  • Wireless radio-frequency passive force sensors are made in the form of a force-measuring washer clamped by a fastening mechanism when the cable is tensioned between stainless steel metal washers, and the force-measuring washer contains a keyway, into which two resonators on surface acoustic waves are connected using high-frequency cables to transceiver antennas.
  • Each surface acoustic wave resonator is a piezoelectric plate on which an interdigital transducer with an antenna containing a set of electrodes as well as reflectors are located, while the antenna of the interdigital transducer is connected to a transceiver antenna using a high-frequency wire.
  • Two stainless steel metal washers pressed in the collar washer are pressed to the load plate.
  • Reflective structures are made in the form of starting, intermediate and final reflecting structures.
  • Figure 1 System for automatic control of the contact wire of electric transport (general view with a temperature sensor).
  • FIG. 2 is a view A of FIG. one.
  • Fig.Z System of automatic control of the contact wire of electric transport (general view with force sensor).
  • FIG. 4 is a view In in FIG. 3
  • Fig.9 Diagram of the resonator.
  • Figure 10 Structural block diagram of a temperature sensor reader.
  • the system for monitoring the state of the contact wire should evaluate the dynamics of the process of changing the state of the contact wire based on information from the temperature sensors of the contact wire and the sensors of the tension force of cables and contact wires, which makes it possible for the user to predict the achievement of reference values states of wires and cables for issuing appropriate possible commands to take the necessary measures (preventive heating of the contact wire or smelting deposits).
  • the claimed solution is used to monitor the temperature and tension of the contact wire.
  • FIGS 1 and 3 show the installation diagram of the system components, allowing to realize automatic wireless monitoring of the catenary network and forecast the status of the catenary wire.
  • Wireless RF passive temperature sensor (3) is fixed on the contact wire (2).
  • a device for reading temperature information from a temperature sensor (1) is installed on a reinforced concrete support (4) together with an ultrasonic receiver (13) and an ultrasonic emitter (14).
  • Also on the reinforced concrete support (4) is fixed a device for reading information about the tension force of the contact wire (2) from the passive force sensor (11).
  • Passive force sensors (11), using a fastening mechanism (12) are installed in the gap of the carrying cable (8) between the suspension insulator (6) and the anchor bracket (7), as well as in the gap of the cable (10) of the compensator block (9).
  • FIG. 5 shows the construction of a passive temperature sensor.
  • the sensing element (16) on the surface acoustic waves contains within itself a piezoelectric substrate (26), on which is located a counter-pin converter (22) connected to the antenna (21), as well as sequentially located: the starting reflecting structure (23), the intermediate reflecting structure ( 24), the final reflecting structure (25) (Fig. 6).
  • the antenna (21) inside the sensing element (16) is connected to its output contacts (17), which in turn are connected to a slot antenna (18).
  • a slot antenna (18), a sensing element (16), a base (20), a gasket (19), a plate (27) are connected, as shown in FIG. 5, with the help of bolts with nuts (15) so that the contact wire (2) is clamped.
  • FIG. 7-9 shows the design of a wireless radio frequency passive force sensor (11), which is a force-measuring washer (31) clamped by a fastening mechanism (30).
  • a fastening mechanism (30) Two metal washers made of stainless steel (29) are pushed onto the load-bearing washer (31) and are inserted into the washer with the shoulder (39).
  • the fastening mechanism (30) is installed in the cable gap (8), secured with fasteners (28).
  • two surface acoustic wave (SAW) resonators (32) with high-frequency cables (41) attached to the transceiver antennas (33) are installed.
  • SAW surface acoustic wave
  • Each resonator (32) is a piezoelectric plate (34), on which an interdigital transducer (37) with an antenna (38) is located, containing a set of electrodes (36), as well as reflectors (35).
  • Antenna (38) in its the queue is connected to the transceiver antenna (33) using a high-frequency cable (41).
  • FIG. 10 shows a block diagram of a device used for reading temperature sensors.
  • the reader contains a transceiver antenna (44) connected to a receive and transmit separation unit (43), which in turn is connected to a linear frequency modulated (chirp) signal generator (42).
  • the chirp generator (42) is connected to the mixer (45), the mixer (45) is connected to the filter (46), and the filter is connected to the analog-to-digital converter (ADC) (47) connected to the signal processor (48) connected to the converter unit interfaces (49), having connectors for connecting an external information consumer.
  • ADC analog-to-digital converter
  • a temperature sensor reader further comprises an ultrasonic emitter with an antenna (14) connected to a generator (50), a control permitting signal from the signal processor (48), and an ultrasonic receiver with an antenna (13) connected to an amplifier (51), the signal from which in the signal processor and is transmitted further to the users (operators) through the interface converter block (49).
  • FIG. 11 shows a force sensor reader comprising a transceiver antenna (54) connected to a transmit and receive separation unit (53), which in turn is connected to a linear frequency modulated (chirp) signal generator (52).
  • the chirp generator (52) is connected to the mixer (55), the mixer (55) is connected to the filter (56), and the filter is connected to the analog-to-digital converter (ADC) (57) connected to the signal processor (58) connected to the block of the interface converter (59), having a connector for connecting an external information consumer (operator).
  • ADC analog-to-digital converter
  • a device for reading temperature information from temperature sensors (1) generates a polling signal transmitted via a radio channel using a transceiver antenna (44), which comes to the polled temperature sensor (3) installed on the contact wire (2).
  • the incoming interrogation signal is fed to the slot antenna (18) and then to the antenna (21) of the opposite-pin converter (IDT) (22), which converts the electromagnetic interrogation signal into a surface acoustic wave propagating along the surface of the piezoelectric substrate of the temperature sensor (26), on which reflecting structures (23) - (25) are sequentially arranged.
  • IDT opposite-pin converter
  • the acoustic wave is partially reflected from each structure (23) - (25) and returns to the IDT (22), where it is converted back into an electromagnetic signal in the form of delayed reflected pulses returning to the reading device of temperature sensors (1) using a transceiver antenna ( 44). Temperature change of contact
  • AND wires leads to a change in the delay time between pulses reflected from the structures, which is proportional to the change in the temperature of the contact wire.
  • the received reflected pulses arrive at the transceiver antenna (44).
  • the received signal enters the receive and transmit separation unit (43) switched to the receive mode and then the signal goes to the mixer unit (45), to which the chirp generator (42) is also connected.
  • the mixer module of the received and transmitted signal a signal is obtained at the resonant frequency, which passes through the filter (46) to the analog-to-digital converter (ADC) (47), where it is digitized and fed to the signal processor (48), processing the received signal and calculating temperature value.
  • ADC analog-to-digital converter
  • a generator (50) controlled by a signal processor (48) and connected to an ultrasonic emitter (14), continuously generates a interrogation ultrasonic signal sent to the suspension unit of the compensator (9).
  • the reflected signal arrives at the ultrasonic receiver with the antenna (13) and then through the amplifier to the signal processor, in which the distance from the reading device to the compensator unit is calculated.
  • a change in the distance from the ultrasonic emitter to the outboard block of the compensator indicates a change in the tension of the cable (10), and therefore a change in the tension of the contact wire (2).
  • the obtained information from the temperature sensor (3) and the change in distance from the ultrasonic emitter to the compensator suspension unit also allows forecasting cable breaks and warning the operator by transmitting information through the interface converter unit (49) to all external information consumers (operators).
  • a device for reading information on the tension force of the contact wire (5) generates an interrogation signal transmitted via a radio channel using a transceiver antenna (54), which arrives at the interrogated force sensor (11), which is a load plate (31) containing two resonators (32) in the keyway undercut (40), each of the resonators is a piezoelectric plate (34) on the surface of which is the transducer (37) with an antenna (38) containing electrodes (36).
  • the frequency of the cavities on the surfactant is determined by the distance between the electrodes (36).
  • the interrogation signal from the device for reading information about the tension force of the contact wire is fed through a transceiver antenna (33) connected with a high-frequency cable (41) to the resonators to the antenna (38) of the resonator (32), connected to the IDP (37).
  • the interrogation signal is converted by an IDT from an electromagnetic to an acoustic surface wave propagating along the piezoelectric plate (34). Encountering heterogeneity on its way in the form of electrodes (36), the wave is reflected back into the IDT with the antenna.
  • the resonant frequency is determined by the distance between the IDT electrodes (37).
  • the deformation of the washer (31) leads to a deformation of the piezoelectric plate of the resonator (34) and to a change in the distance between the electrodes of the opposite-pin converter (36), which in turn changes the resonant frequency.
  • This change is proportional to the deformation forces applied to the washer (31) and is fixed in the reader for the force sensor (5).
  • the tension of the cable (8) leads to squeezing of the fastening mechanism (30), which indicates tension.
  • the received reflected pulses arrive at the transceiver antenna (54).
  • the received signal enters the receive and transmit separation unit (53) switched to the receive mode and then the signal goes to the mixer unit (55), to which the chirp generator (52) is also connected.
  • a signal is obtained at the resonant frequency, which passes through the filter (56) to the analog-to-digital converter
  • ADC Analog to Digital
  • the reader (5) transmits information about the critical values of the cable tension, and predicts the cable break (8).
  • a force sensor installed at the cable tension points of the compensator unit (10) and the cable between the anchor bracket (7) and the suspension insulator (6) measures the cable tension force.
  • the cable itself is tensioned or weakened by the tension or weakening of the contact cable (2).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne les lignes d'alimentation électriques en contact avec des collecteurs de courant de véhicules. Ce procédé de contrôle automatique de conducteur à contact de moyen de transport électrique consiste à former et envoyer un signal d'interrogation, en fonction de données reçues depuis des capteurs de force et de température d'un dispositif pour lire les informations de température et de force de tension du conducteur à contact, et traiter les informations reçues et les transmettre à un opérateur. On génère en outre un signal d'interrogation ultrasonore que l'on envoie avec un émetteur ultrasonore vers une unité de suspension de compensateurs et qui revient vers un récepteur ultrasonore. L'invention concerne également un système de contrôle automatique de conducteur à contact qui comprend des capteurs de température et de force de tension, des dispositifs de lecture d'informations sur la température et la force de tension, et un émetteur et un récepteur ultrasonores. Les capteurs de température et de force se présentent sous forme de capteurs passifs radiofréquence sans fil. Le résultat technique consiste en l'évitement de situations de panne sur le réseau de contact.
PCT/RU2017/000949 2017-12-19 2017-12-19 Procédé et système de contrôle automatique de conducteur à contact de moyen de transport électrique WO2019125197A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EA202091163A EA202091163A1 (ru) 2017-12-19 2017-12-19 Способ и система автоматического контроля контактного провода электротранспорта
PCT/RU2017/000949 WO2019125197A1 (fr) 2017-12-19 2017-12-19 Procédé et système de contrôle automatique de conducteur à contact de moyen de transport électrique
RU2020119146A RU2750823C1 (ru) 2017-12-19 2017-12-19 Способ и система автоматического контроля контактного провода электротранспорта

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2017/000949 WO2019125197A1 (fr) 2017-12-19 2017-12-19 Procédé et système de contrôle automatique de conducteur à contact de moyen de transport électrique

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CN115390076A (zh) * 2022-08-29 2022-11-25 北京太格时代自动化系统设备有限公司 重载铁路隧道多棘轮补偿装置ab值在线监测装置及方法

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CN114459659A (zh) * 2022-02-09 2022-05-10 陕西路易德路桥技术有限公司 列车接触网承力索电缆张力监测装置
CN114459659B (zh) * 2022-02-09 2024-01-30 陕西路易德路桥技术有限公司 列车接触网承力索电缆张力监测装置
CN115390076A (zh) * 2022-08-29 2022-11-25 北京太格时代自动化系统设备有限公司 重载铁路隧道多棘轮补偿装置ab值在线监测装置及方法

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