Method for improvement of operation stability of registration sensor of wheel passage to ambient temperature effect and traction current rushes and corresponding registration sensor of wheel passage

FIELD: electricity.

SUBSTANCE: sensor of wheel passage uses a circuit for registering the parameters of inductance coil, a temperature sensor and a table, the data from which change the parameters of registration circuit depending on the temperature sensor data so that changing the coil parameters from the temperature effect would not affect the result of registering the wheel pass. The registration circuit uses an autonomous master oscillator and an oscillating circuit, which includes an inductance coil. The values of frequency and amplitude of the curcuit drive current are controlled using said table, which contains current frequency and amplitude control codes that are individual for each sensor instance and which are selected in accordance with the value supplied from the temperature sensor. Wherein as the sensitive element of the temperature sensor, the resistance of the inductance coil to the direct current is used.

EFFECT: increase the stability of sensor operation when exposed to thrust current and when exposed to ambient temperature over the entire operating temperature range.

6 cl, 1 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: invention relates to railroad transport and can be used within sections equipped with controlled manual systems. In the method for determination if railroad haul equipped with controlled manual system is free from rolling-stock, simultaneously with count of wheel pairs, passing train rolling stock units are identified, expected sequences of pulses from train rolling stock units are generated and compared with corresponding pulse sequences generated by counters, according to comparison results, count errors occurring due to faulty operation of train rolling stock wheel pair axle counters, and when numbers of wheel pairs coincide it is decided that haul is free. Railroad haul controlled manual system contains two half-sets on count intervals of stations limiting a haul, where each section includes rail transducers of control track section count interval, which transducers are connected via signal shaper with input of receiver set the output of which is connected via axle counter interface unit with local communication backbone to which following equipment is connected: adjacent station interface unit, electric interlocking interface unit, radiocommunication radio channel interface unit to which RF modem, and control unit additional input of which is connected to rolling stock units identification unit, the informational port of which is connected to storage unit of traffic scheduling database.

EFFECT: higher validity of railroad haul freeness from rolling-stock determination.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport and can be used for control over train traffic in span between adjacent stations. System comprises two hardware subsets at station count sections that confine the span. Every said subset comprises rail sensors connected via signal generator with the set of receivers. The latter is connected via interface with axle counters with local communication mainline whereto connected are interface with electrical interlocking and control unit. Every said subset incorporates station GSM communication module connected via interface with station GSM communication module to local communication mainline. Every locomotive of trains covered by this system is equipped with onboard GSM communication module connected via local mainline of onboard devices with central onboard device of traffic control. Span every mid section is equipped with at least one count station including strain gage to measure wheel pressure at rails, interface, microcontroller, GSM communication module, accumulator and secondary power supply. Said strain gage is connected to accumulator and interface connected, in its turn to microcontroller. The latter is connected to GSM module control port and with secondary power supply control input, accumulator being connected to secondary power supply of intermediate counter station.

EFFECT: higher capacity of long spans.

4 cl, 1 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to systems for controlling movement of trains on railway hauls. The semi-automatic blocking system for length-limited railway hauls comprises, at the limiting railway hauls, entrance and exit traffic lights connected to electrical centralised control equipment connected to interface units. The limiting railway hauls are equipped with blocks of near and far ends of track circuits. There is also a linear circuit and a power supply line. The blocks of near ends of track circuits are connected to interface units which are connected to each other and to the block of far ends of track circuits, which is connected to the power supply line.

EFFECT: high reliability and safety of train movement.

1 dwg

FIELD: transport.

SUBSTANCE: proposed method consists in feeding the signal to track section circuit to be measured at track initial section and defining the train position by received signal variation. Extra signal of track occupancy is generated at rolling stock to be transmitted to and received at initial and final track sections to decide on location of rolling stock at track section by availability of said signal. Control system comprises track hardware transmitter unit and receiver unit. Additionally, every rolling stock comprises extra track section occupancy signal generator connected with onboard control hardware unit. Initial and final section track hardware is equipped with receiver of extra track section occupancy signal. Said receiver is connected to track, switch and signal interlocking hardware unit.

EFFECT: higher reliability.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport. Proposed device comprises crossbars and bolsters to control train bottom gage and track transducer. Besides, it comprises video recorder connected to computer marker controller, and timer connected to computer time marker controller. Aforesaid crossbars and bolsters are connected to computer while track transducer is connected to computer marker and time marker controllers. Computer is connected to dispatcher station.

EFFECT: expanded operating performances.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway remote control and ACS systems, particularly, to railway crossing traffic control devices. Proposed device comprises train approach and departure sections track circuits arranged on both side of said crossing. Every track of railway crossing incorporates transducer to clamp train mounted axle passage, secured to departure section rails. Transducer output is connected to control unit input with its power outputs connected to crossing actuator device. Besides, it comprises track transceiver with data port connected to that of control unit. Track transceiver is connected via digital radio communication line with locomotive onboard control device transceiver.

EFFECT: higher reliability and safety.

1 dwg

FIELD: transport.

SUBSTANCE: system consists of two hardware subsets mounted at counting posts of stations limiting the haul. Every said subset includes rail transducers arranged at check track section of appropriate counting section and connected via signal generator with input of receiver unit with its output connected via interface unit incorporating axle counters with local communication main line whereto connected are interface unit with electric centralisation, control unit and interface unit with interface unit incorporating long-range digital radio communication channel whereto connected is radio modem with antenna. At least, one intermediate counting station is located at every intermediate section of railway haul. Every train locomotive is equipped with transceiver of long-range and short-range digital radio communication channels. Said transceiver is connected with central onboard traffic control device.

EFFECT: higher throughput of system for long hauls.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway ACS and telemetry systems and may be used for train separation in station limit with automatic interlocking systems. Station limit is divided into block-sections equipped with rail circuits for control of their state and signal lights continuously receiving and processing data coming from advance signal section on the state of advance block section and cutting on appropriate signal light to continuously send data to rearward signal light. With no trains on station limits signal lights are de-energised, while with trains on said station limits four advance signal lights are energised. Fourth signal light generates and transmits data on occupancy of guarded block-section. Third, second and first signal lights receive and process data from advance signal light to transmit said data on guarded block-section state to signal light located rearward of signal light, and to switch on appropriate signal at signal light that is located first block-section ahead of the train.

EFFECT: higher capacity of station limit and traffic safety.

FIELD: railway transport.

SUBSTANCE: proposed device comprises two channels, i.e. one to process track transducer data and another to transmit processed data to decision-making peripheral hardware, communication cables, circuits to energise common signaling relay of leave light signals of B and A, circuits to switch on electric latch of B and A station service train pusher-staff, circuits of non-occupancy switch-off relays of B and A stations and station supervisor control boards of B and A stations.

EFFECT: increased crossing capacity.

2 dwg

FIELD: railway transport.

SUBSTANCE: proposed device comprises two track transducer data processing channel and that to transmit processed data to peripheral hardware, central control and processing unit, data I/O device, relay units of crossing guards, automatic crossing barrier control relay units, barrier OPEN/CLOSE buttons, instruction generation unit and that to generate axle pass instructions.

EFFECT: increased crossing capacity.

2 dwg

FIELD: railway transport; signaling and communication.

SUBSTANCE: invention relates to railway signaling and communication and it cat be used to check and record passing of wheelsets, bogies and vehicles in preset point of route. Proposed device contains inductive stub arranged on track and electronic unit connected to stub which includes dc pulse generator and return signals receiver-analyzer revealing signals of wheels, bogies and train units in pauses between pulses. Output of dc pulses generator is connected to inductive stub which is connected to input of receiver-analyzer of return signals.

EFFECT: improved reliability and accuracy of detection of passing and recording of wheelsets, bogies and trains.

2 dwg

Train axle counter // 2268184

FIELD: railway transport; signaling and communication; interval traffic control.

SUBSTANCE: device contains axle transmitter with two sensor and two pulse shapers. The latter are connected with axle counting unit through pulse duration correcting unit of first and second sensors. Moreover, device is provided with unit measuring time of wheel passage between two sensors of axle transmitter and controlled clock pulse frequency divider connected with said unit. Count input of frequency divider is connected clock frequency to output of axle counting unit, and output is connected with clock inputs of pulse duration correcting units with possibility of changing value of tolerable correction of pulse duration depending on speed of train in place of axle transmitter mounting. Device features increased interference immunity as transmission of interferences to input of axle counting unit caused by movement of small diameter wheels and metal parts over axle transmitter duration of pulses from which is less than duration set by actual speed of movement of normal diameter wheels over axle transmitter is excluded.

EFFECT: improved interference immunity.

2 dwg

FIELD: railway transport; traffic control.

SUBSTANCE: proposed method of train traffic control provides counting of wheelset axles when train leaves the station and enters block-section. Depending on obtained result, number and lengths of block sections are changed. The greater the number of counted wheelset axles, the smaller the number of block-sections and the greater is their length, and vice versa. Train traffic control device includes dispatch station and arrival station wheelset axle counter is installed at dispatch station. Devices of signal points of automatic block system are furnished with keys to switch on or off the system. Output of wheelset axle counter is connected with inputs of keys of automatic system signal pointed devices. Keys switch on or off automatic block system signal point devices at passage of trains in one direction.

EFFECT: increased track capacity pf block sections.

3 cl, 2 dwg

FIELD: railway transport; axle counter.

SUBSTANCE: invention relates to organization and control of traffic, namely, to track devices interacting with train by counting axles of trains. Method includes delivery of ac voltage with duration of Tc from N post devices to N track-side electronic units, independent shunting of N line circuits, coding of information transmitted from N track-side electronic units to N post devices. Alternating voltage of duration Tc is supplied from one post device to N parallel-connected track-side electronic units, and transmission of code information from N track-side electronic units to one post device is provided by alternate shunting of one line circuit of post device distributed in time and synchronized with frequency of ac voltage. Total duration of shunting of line circuit is equal to nTc where n is whole number characterizing duration of transmission of information to post device over one line circuit. Decoding of received information in post device is effected according to time intervals of line circuit shunting and is distributed among definite outputs according to information received from each of track-side electronic unit.

EFFECT: reduced cost and materials usage of axle counter, improved reliability.

3 cl, 2 dwg

FIELD: railway transport.

SUBSTANCE: invention relates to section with intensive traffic. According to proposed method, section is divided into block sections equipped with track circuits and/or axle counters to control non-occupancy of track limited by track light signals, and track light signals are operated depending on number of non-occupied block sections ahead and use is made of devices to reveal failures. Counters of axles are installed at boundaries of section which control non-occupancy of section, and stations limiting the section are equipped by semiautomatic interlocks and danger signal switch-on devices on pass through track light signals to stop noncontrolled train. In case of false occupation of one of several block sections, change of direction is provided by readings of axle counters which control the section, and in case of closing of automatic interlock at failure, semiautomatic interlocks are used.

EFFECT: improved safety of traffic.

FIELD: railway transport; traffic control.

SUBSTANCE: invention relates to organization and control of traffic, namely, to track devices interacting with train and providing indication of presence of train on track section. According to proposed method, simultaneously with operation of track circuit, number of axles of train is counted by first track device when train gets on beginning of track section, and number of train axles is counted when train gets on end of section by second track device. If data received from first and second track devices as to number of counted axles are equal, after clearing of track section, second relay is energized and track circuit operation is checked, and it malfunctioning or failure of track circuit is revealed, third track relay is energized by contacts of second track relay and contacts of third track relay provide required relationships between switch points and station signals. Track circuit is monitored uninterruptedly. Proposed device contains electric interlocking system, dc voltage source and track circuit, data transmitting bus, analyzer, second, third and fourth relays and axle counting system.

EFFECT: improved reliability of device to reveal nonoccupancy of track section.

3 cl, 1 dwg

FIELD: railway transport.

SUBSTANCE: invention relates to organization and control of traffic on railway, namely, to methods and device recording and locating vehicle or train. Proposed method includes measuring output voltage of first rail pickup at no wheel over pickup and at presence of wheel, measuring values of voltages and getting of output signal stating the fact of wheel passing over first rail pickup. Wirth wheel passing over first rail pickup, moment of appearing of extreme value of output voltage is determined, output voltage of second rail pickup is measured and is compared with first preset threshold voltage range and thus fact of wheel passing along section of track is revealed. Device contains N rail pickups, amplitude detector, switches, comparators, threshold voltage levels setters and comparing device.

EFFECT: improved reliability of device owing to prevention of putting out of false output signals or omission of detection of vehicle axles.

3 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to organisation and control over railroad traffic, in particular, to the track device interacting with the train and exercising control over the rolling stock on the track. The method comprises the transmission of data on the number of axles from the i-th and (i+1)-th rail pickups to the (i+1)-th comparator, comparison and, if the data on the number axles of the of rolling stock that passed the i-th and (i+1)-th rail pickups coincide, the generation of a signal indicating an open-track state in the section from the i-th to the (i+1)-th rail pickup. Given any failures in operation of afore mentioned pickups or comparators, the data on the number of axles from the i-th and (i+2)-th rail pickups are transmitted to the (i+2)-th comparator that will output the open-tract state signal.

EFFECT: ruling out false occupancy influence on device operation.

1 dwg

FIELD: transportation.

SUBSTANCE: rail track circuit for block section occupancy monitoring consists of cable loop sensor (CLS) for pass monitoring and/or wheel pairs counting and/or rail rolling equipment units counting. This sensor represents cable communication system laid between rails of railroad in subgrade formation. Rail track circuit makes possible to determine train position in block and sends signals to stoplight, centralisation and blocking units. Rail track circuit has branched structure of several sensors located in subgrade of inter-rail space. One part of sensors is intended for rolling equipment wheel pairs pass monitoring and/or rail rolling equipment units counting; other sensors are intended for rolling equipment movement direction determination. Cable loop sensor consists of industrial multicore cable, accommodated between rails in subgrade of railroad line. It has receiver and transmitter for signals generated during interaction of rolling equipment metal bodies with electromagnetic field created by cable. The sensor comprises decoder and analyser for received signals, power supply which represents direct current impulse generator.

EFFECT: reliability enhancement.

11 dwg

FIELD: transportation.

SUBSTANCE: branched cable loop rail circuit comprises system of closely-located cable loop sensors for rail block-sections occupancy monitoring. Cable loop sensors are located on surface or inside railroad subgrade at certain depth. They are placed between railroad sleepers and fall outside the limits of railroad by certain value. Cable loop length is determined by vehicle base. Each cable loop is accommodated along railroad between end ports without intersection with the neighbouring one. Currents flowing in these loops create electromagnetic fields of opposite direction. Cable loops quantity corresponds to number and configuration of isolated from each other branched rail lines. Ends of cable loop enter line box, cores of cable ends in terminal board are connected in a certain manner with certain number of coils.

EFFECT: lowering of power consumption.

13 dwg

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