RU2817647C1 - Device for centralized automatic blocking with continuous rail circuits of tone frequency - Google Patents

Abstract

FIELD: rail vehicles.

SUBSTANCE: invention relates to means of centralized automatic blocking with continuous rail circuits of tone frequency for interval control of movement of trains both on hauls and at stations, at routes with switched on mode of automatic passage of trains. Device contains in each semi-set of automatic blocking signal box equipment unit (1) of signal generators of rail circuits, connected through transmitting cores of cable line (2) to transmitting ends of rail circuits of rail line (3) of its block section, and rail circuit signal receivers unit (4), block section rail circuit successive occupation control unit (5), unit (6) for monitoring successive release of rail circuits of the block section, blocking relay unit (7), signal relay unit (8), coding signals selection unit (9), coding signal generator unit (10), code signal switching unit (11), long-range radio communication transceiver (12) with connected to it coordinate unlocking and reconfiguration unit (13), unit (15) for generating radio messages installed in the head part of electric train (14), to which satellite navigation unit (16) is connected, providing determination of current coordinate during movement of electric train along block sections of rail line with blocked or falsely occupied track circuits. Device is also equipped with unit (17) for digital simulation of the correct occupation of rail circuits and unit (18) for generating an inviting signal.

EFFECT: wider field of application of the device is achieved.

1 cl, 1 dwg

Description

The invention relates to signaling, centralization and blocking devices in railway transport and can be used in devices for interval control of train movement both on stages and at stations, on routes with the automatic train passage mode (automatic control mode) enabled.

A device for monitoring the passage of trains along a stretch is known, in which the floor equipment includes track circuits consisting of rail threads with transmitting and receiving equipment connected to them, implemented on the basis of tone track circuit equipment, generators of code signals for automatic locomotive signaling (ALS) and passing traffic lights with object controllers connected to them, the automatic locomotive signaling contains an inductive receiver of automatic locomotive signaling code signals, fixed outside the locomotive, and a locomotive traffic light, fixed in the driver's cabin, the central control device is implemented on the basis of the MPTs-EL microprocessor signaling system installed at the station and contains a central processor with a software module installed in its internal memory, which provides the ability to detect false occupancy of a track circuit and determine the type of occupancy; the central control device is connected to object controllers and to transmitting and receiving equipment implemented on the basis of tone rail circuit equipment, including generators ALS code signals, which are connected to the rail threads, passing traffic lights are connected to object controllers, an inductive receiver of automatic locomotive signaling code signals is connected to a locomotive traffic light (RU2775025, B61L 23/16, 06/27/22).

The known device has a number of disadvantages. In particular, registration of false occupancy on a stretch occurs when the rail circuit (RC) is occupied without registering the departure of a train from a station to a stretch; accordingly, dispatch of a train from a station by order in the event of a malfunction of station devices leads to the appearance of false occupancy on a stretch and to the lack of ALS coding in a falsely occupied DC, to the appearance of more permissive coding of the ALS to the occupied DC, regardless of the subsequent movement along the route of the mobile unit sent according to the order. If the first stage RC, included in the 1st removal section, is falsely occupied, it is impossible to ensure the reduction in intervals of passing trains, as declared in the invention, since setting the departure route requires the free state of this section. Excluding a protective section for a falsely occupied RC shortens the interval, however, a falsely occupied RC can be occupied by a train sent by order or in case of malfunctions in the MPC; accordingly, the ALS coding can be more permissive than according to the signaling schedule for the section.

A device is known for transmitting control commands of automatic locomotive signaling to the track circuits of a centralized automatic blocking system, containing a control block of signals for the interaction of components of an interval control system, the first output-input of which is connected through the first CAN interface to the input-output of the automated workstation of the station duty officer, and the second output - the input is connected through the second CAN interface to the block of logical reconfiguration of rail circuits and to the first input-output of the transceiver of signals for monitoring the rail line and automatic locomotive signaling, the second input-output of which is connected to the rail line, the temporary switching unit of the device for generating code signals for automatic locomotive signaling , the input-output of which is connected through the second CAN interface to the third output-output of the control unit of signals for the interaction of components of the interval control system (RU2644049, B61L 23/16, 02/07/18).

In the known device, coding the track circuit to the falsely occupied and the most falsely occupied RC with ALS codes corresponding to the train situation ahead or the train situation at the time of the malfunction may be ineffective in case of malfunctions associated with breaks in cable lines, rail threads, and short circuits.

As a prototype, a device for centralized automatic blocking with continuous voice-frequency rail circuits was adopted, containing in each semi-set of post-automatic blocking equipment a block of signal generators for voice-frequency rail circuits connected through the transmitting cores of the cable line to the transmitting ends of the rail circuits of the rail line of its block section, and a block receivers of voice-frequency rail circuit signals connected through the receiving cable line wires to the receiving ends of the rail circuits of the rail line of their block section, the outputs of the block of voice-frequency rail circuit signal receivers are connected to the inputs of the control unit for the sequential occupation of the block-section rail circuits, the sequential release control unit rail circuits of the block section, a blocking relay block and a signal relay block, the output of which is connected to the first input of the coding signal selection block, the second input of which is connected to the output of the coding signal generator block, and the output is connected to the input of the coding signal switching block, the outputs of which are connected to transmitting and receiving conductors of the cable line, the output of the control unit for the sequential release of track circuits is connected to the second input of the blocking relay block, the output of which is connected to the second input of the signal relay block, the long-distance radio communication transceiver and the coordinate unlocking and reconfiguration block connected to it, the additional output of which is connected to input for controlling the configuration of the blocking relay block, while the transceiver is connected via a long-distance radio channel to a radio message generation unit installed in the head part of the electric train, to which a satellite navigation unit is connected, which ensures the determination of the current coordinate when the electric train moves along block sections of the rail line with blocked or false occupied by rail circuits (RU2693992, B61L 23/16, 07/08/19).

The disadvantage of the known device is the limited scope of application due to the fact that information about permission for a train to pass a falsely occupied or blocked track circuit can only be transmitted via a radio channel. Therefore, this information is not delivered to trains that are not equipped with a radio channel.

The technical result of the invention is to expand the scope of application of the device.

The technical result is achieved by the fact that a device for centralized automatic blocking with continuous voice-frequency rail circuits, containing in each semi-set of automatic blocking station equipment a block of voice-frequency rail circuit signal generators connected through the transmitting cores of the cable line to the transmitting ends of the rail circuits of the rail line of its block section, and a block of receivers of signals from voice-frequency rail circuits connected through the receiving wires of the cable line to the receiving ends of the rail circuits of the rail line of its block section, the outputs of the block of receivers of signals from voice-frequency rail circuits are connected to the inputs of the control unit for the sequential occupation of rail circuits of the block section, the control unit sequential release of the rail circuits of the block section, the blocking relay block and the signal relay block, the output of which is connected to the first input of the encoding signal selection block, the second input of which is connected to the output of the encoding signal generator block, and the output is connected to the first input of the encoding signal switching block, the first and the second outputs of which are connected respectively to the transmitting and receiving conductors of the cable line, the output of the control unit for the sequential release of track circuits is connected to the second input of the blocking relay block, the first output of which is connected to the second input of the signal relay block, a long-distance radio transceiver with a coordinate unlocking block connected to it and reconfiguration, the additional output of which is connected to the configuration control input of the blocking relay block, while the transceiver is connected via a long-distance radio channel to a radio message generation unit installed in the head part of the electric train, to which a satellite navigation unit is connected, ensuring the determination of the current coordinate when the electric train moves along the block - sections of the rail line with blocked or falsely occupied track circuits, according to the invention, are equipped with a digital modeling block for the correct occupancy of track circuits and a block for generating an invitation signal, the input of which is connected to the first output of the digital modeling block for the correct occupancy of track circuits, the second output of which is connected to the second input of the block switching on code signals, the third input of which is connected to the output of the invitation signal generation block, while the first input of the digital modeling block of the correct occupancy of the track circuits is connected to the second output of the blocking relay block, and its second input is connected to the output of the block of voice frequency track circuit signal receivers.

The drawing shows a functional diagram of a device for centralized automatic blocking with continuous voice-frequency track circuits.

A device for centralized automatic blocking with continuous voice-frequency rail circuits contains in each semi-set of automatic blocking station equipment a block 1 of voice-frequency rail circuit signal generators connected through the transmitting cores of the cable line 2 to the transmitting ends of the rail circuits of the rail line 3 of its block section, and a block 4 of receivers signals of voice-frequency rail circuits connected through the receiving cores of cable line 2 to the receiving ends of the rail circuits of rail line 3 of its block section, the outputs of the block 4 receivers of voice-frequency rail circuit signals are connected to the inputs of block 5 for monitoring the sequential occupation of rail circuits of the block section, block 6 control of the sequential release of the rail circuits of the block section, block 7 blocking relays and block 8 signal relays, the output of which is connected to the first input of the encoding signal selection block 9, the second input of which is connected to the output of the encoding signal generator block 10, and the output is connected to the first input block 11 for switching on code signals, the first and second outputs of which are connected respectively to the transmitting and receiving conductors of cable line 2, the output of block 6 for monitoring the sequential release of track circuits is connected to the second input of block 7 blocking relays, the first output of which is connected to the second input of block 8 signal relays , long-distance radio communication transceiver 12 with a coordinate unlocking and reconfiguration block 13 connected to it, the additional output of which is connected to the configuration control input of the blocking relay block 7, while the transceiver 12 is connected via a long-distance radio channel to a radio message generation block 15 installed in the head part of the electric train 14 , to which a satellite navigation unit 16 is connected, which ensures the determination of the current coordinate when an electric train moves along block sections of a rail line with blocked or falsely occupied rail circuits, the device is equipped with a digital modeling block 17 for the correct occupancy of rail circuits and a block 18 for generating an invitation signal, the input of which is connected with the first output of block 17 for digital modeling of the correct occupancy of track circuits, the second output of which is connected to the second input of block 11 for switching on code signals, the third input of which is connected to the output of block 18 for generating an invitation signal, while the first input of block 17 of digital modeling of the correct occupancy of track circuits is connected with the second output of block 7 blocking relays, and its second input is connected to the output of block 4 of signal receivers for voice-frequency track circuits.

A device for centralized automatic blocking with continuous voice-frequency track circuits operates as follows.

Receiver block 4 monitors the state of the rail circuits of that part of the section that is assigned to a given station. Block 4 of signal receivers of these voice-frequency rail circuits acts on the corresponding block 8 of signal relays, which ensures the selection of the required readings of the traffic light and ALS code signals. In addition, block 4 of receivers influences block 7 of blocking relays, block 5 for monitoring the sequential occupation of rail circuits and block 6 for monitoring the sequential release of rail circuits of the block section of the corresponding part of the section.

Block 11 for switching on code signals to track circuits, at the command of block 9 for selecting voice-frequency rail circuit coding signals, supplies coding signals ALSN and/or ALS-EN to the rails of a busy rail circuit. Code signals ALSN and/or ALS-EN are fed into the rails along the existing transmitting and receiving cores of cable line 2.

Blocking relay block 7 and blocking relay block 6 for monitoring the sequential release of track circuits of the block section are involved in the closing and opening of the distillation devices.

When a train enters any block section, block 7 blocking relays influence block 8 signal relays of this block section, excluding the opening of the traffic light enclosing this block section, and ensuring the selection of an enabling code signal for the previous block section (closure block area).

The block section is opened automatically with the participation of block 6 for monitoring the sequential release of the rail circuits of this block section and the protective section. An additional condition for opening a block section, checked by blocking relay block 7, is to check that the block section next in the direction of travel is fenced with a traffic light with a red light, and the rail circuits of the protective section behind the traffic light are free of rolling stock. A violation of the sequence of releasing the track circuits of a block section, which may be, for example, a consequence of the loss of a shunt when the block section or protective section is actually occupied, can cause a blocking state of the track circuit of the block section. In this case, the block section does not open and the permitting signal at the traffic light does not turn on. The blocking state of the track circuit of a block section can also occur when the equipment malfunctions, when the power is turned off and then back on, the influence of other electromagnetic interference, or when a malfunction occurs in the device.

To open a block section and remove the blocking state of the track circuit of a block section, the device provides a procedure for artificially opening block sections. The artificial opening of block sections is carried out instructively by the person on duty at the departure station or automatically by unit 13 of coordinate unblocking and reconfiguration.

False occupancy of the track circuit can occur in the absence of trains due to a malfunction of the guard or floor equipment of the track circuit. In this case, travel along the falsely occupied rail circuit is carried out by the first electric train, according to the instructions, at a speed of 20 km/h. After the electric train has passed the section, data from block 6 for monitoring the sequential release of the rail circuits of this block section and the protective section and from block 4 of receivers enters block 13 of coordinate unlocking and reconfiguration.

The coordinate unlocking and reconfiguration block 13 implements a number of logical functions consisting in analyzing the output data from the blocking relay block 7, the block 5 for monitoring the sequence of track circuits and the long-distance radio transceiver 12.

If a blockage of the track circuit under the electric train occurs, at the output of the coordinate unblocking and reconfiguration block 13, after the block section is released according to the data on the coordinates of the train from the transceiver 12, a signal is generated to unblock the block section.

When an electric train approaches a blocked or falsely occupied rail circuit of a block section, it is allowed to enter this block section at a speed of 20 km/h and ready to stop. After the block section is released according to the data on the coordinates of the train from the transceiver 12, at the output of the coordinate unblocking and reconfiguration block 13, a signal is generated about the unblocking of the block section, if it was blocked, or a signal about the reconfiguration of the track circuit, if it was and remains falsely occupied by data from block 5 for monitoring the sequence of occupancy of track circuits. The reconfigured track circuit is released when there is a signal about its reconfiguration from block 13. The occupation and release of this track circuit occurs further according to data from the transceiver 12 and according to data about neighboring track circuits from blocks 5 and 6, until the reconfiguration is turned off, after the track circuit is released according to data from block 5.

The digital modeling block 17 of the correct occupancy of the track circuits for determining the correct occupancy of the track circuits has at its input from the receiver block 4 data on the state of the track circuits of the entire stretch and station. Block 17, in addition to blocking relay block 7, analyzes for each track circuit the state of the nearest neighboring rail circuits and, when sequential occupancy of rail circuits is detected, in the direction of the established direction of movement on a stretch or at a station on a route in automatic control mode, it generates a sign of correct occupancy of the rail circuit. Thus, when the last station rail circuit is occupied, regardless of the presence of a departure route at the station, when the first stage rail circuit is occupied, block 17 determines its occupation as correct and not false. At the same time, by enabling ALS coding, the safety of train traffic increases. If the station rail circuit was free when the distillation rail circuit was occupied, then its state remains false. When block 17 detects the correct occupancy of the track circuit, the movement of a mobile unit in an unspecified direction of movement, when it approaches a traffic light with a prohibitory indication or an oncoming train, block 17 transmits codes ALSN KZH and ALS-EN number 10 to the block for switching on code signals 11. The codes are supplied from the generator block 1 generators in front of the intended train head, followed by switching off after 10 seconds to automatically brake the train.

If there is a falsely occupied track circuit on a stretch or at a station on a route, in the automatic control mode, the ALS-EN invitation signal code and the ALSN KZh code are turned on on this track circuit. When a track circuit is occupied, in front of a falsely occupied rail circuit, the ALS-EN coding of the invitation signal and ALSN KZH is additionally turned on on the track circuit in front of the falsely occupied rail circuit.

ALS signals from different generators are synchronized with each other using a special high-speed data bus. By turning on the invitation signal ALS-EN and ALSN KZh, in the track circuit up to the falsely occupied and on the falsely occupied rail circuit itself, the following goals are achieved: reducing the interval between trains, increasing the speed of the section. The invitation signal ALS-EN, not in front of the invitation traffic light, signals the driver about approaching a falsely occupied rail circuit and about following this section itself and is a signal for special vigilance and readiness to stop, as well as a signal for readiness to report on the integrity of the rail track, for subsequent enable reconfiguration.

These functions are performed by the unit 18 for generating the invitation signal and the unit 9 for selecting the encoding signal, interacting with each other.

When the departure route is in automatic control mode, false occupancy at the first removal section will be coded in the same way as a falsely occupied track circuit in the middle of the section.

In the absence of a departure route, it is allowed to set the departure route for the stretch in automatic control mode, when the first removal section is occupied, when the first and second sections approaching the exit traffic light are free, or after the train has completely stopped, in front of the exit traffic light. This is done to eliminate cases of emergency braking when there is a sudden change in the train situation ahead when the “x13” section is occupied, that is, the section that removes the traffic light from a red signal indication to a cross-type signal indication for the normal opening of a traffic light.

The above description of the operation of the device shows that, in comparison with the prototype, traffic safety is improved for trains not equipped with a radio channel, which ultimately expands the scope of application of the device.

Claims (1)

A device for centralized automatic blocking with continuous voice-frequency rail circuits, containing in each semi-set of automatic blocking station equipment a block of voice-frequency rail circuit signal generators connected through the transmitting cores of the cable line to the transmitting ends of the rail circuits of the rail line of its block section, and a block of rail circuit signal receivers voice frequency connected through the receiving conductors of the cable line to the receiving ends of the rail circuits of the rail line of their block section, the outputs of the block of signal receivers of the voice frequency rail circuits are connected to the inputs of the block for monitoring the sequential occupation of the rail circuits of the block section, the control block for the sequential release of the rail circuits of the block - section, a blocking relay block and a signal relay block, the output of which is connected to the first input of the coding signal selection block, the second input of which is connected to the output of the coding signal generator block, and the output is connected to the first input of the coding signal switching block, the first and second outputs of which are connected respectively with the transmitting and receiving conductors of the cable line, the output of the control unit for the sequential release of track circuits is connected to the second input of the blocking relay unit, the first output of which is connected to the second input of the signal relay unit, a long-distance radio communication transceiver with a coordinate unlocking and reconfiguration unit connected to it, the additional output of which connected to the configuration control input of the blocking relay block, while the transceiver is connected via a long-distance radio channel to a radio message generation unit installed in the head part of the electric train, to which a satellite navigation unit is connected, which ensures the determination of the current coordinate when the electric train moves along block sections of the rail line with blocked or falsely occupied track circuits, characterized in that it is equipped with a digital modeling block for the correct occupancy of track circuits and a block for generating an invitation signal, the input of which is connected to the first output of the digital modeling block for the correct occupancy of track circuits, the second output of which is connected to the second input of the block for switching on code signals , the third input of which is connected to the output of the invitation signal generation block, while the first input of the block for digital modeling of the correct occupancy of track circuits is connected to the second output of the blocking relay block, and its second input is connected to the output of the block of signal receivers for voice-frequency track circuits.