Temporary device for interval control of train traffic with movable block sections on section equipped with numerical code automatic block system

Abstract

FIELD: railways.SUBSTANCE: invention relates to the field of railway automation, telemechanics and communications. A temporary device for interval control of train traffic with movable block sections on a section equipped with a numerical code automatic block system comprises temporary entry signals at the boundaries of the section, sets of automatic blocking equipment with track circuits in mounting cabinets (ABTC-MC) equipment in temporary cabinets, sets of equipment for coordination and connection to the rail line, each of which is located in a track box, a temporary connecting cable between the temporary cabinets and the track boxes. In this case, each set of ABTC-MC equipment, located in a temporary cabinet, includes two control modules, modules for generating complex signals of continuous automatic cab signalling (CACS) or single-row CACS, inter-station communication, relay polling and relay control. Moreover, the set of ABTC-MC equipment, located in the first and last temporary cabinets, additionally includes a module for controlling the signals of the input traffic lights, and the set of ABTC-MC equipment, located in the last temporary cabinet and the cabinets installed between the first and last temporary cabinets, additionally includes modules for monitoring the track circuit.EFFECT: reduction in the loss of capacity of a section on a stretch during the course of track works.1 cl, 2 dwg

Description

[0001] The invention relates to the field of railway automation, telemechanics and communications and can be used to organize time-based interval control of train traffic on double-track and multi-track sections equipped with a numerical code automatic blocking system, in areas where major track repairs are being carried out with the closure of traffic on one of the tracks of the section or for the period of restoration of normal operation of existing devices as a result of their failure.

[0002] A temporary checkpoint is known, made on the basis of the equipment of the ABTC-MSh automatic block system and installed on the section of the junction with the support station limiting the section, and containing floor and post equipment, the floor equipment includes, in the area of ​​​​adjacent to the checkpoint, entrance traffic lights, track circuits of the existing on the section microprocessor automatic block ABTC-MSh with insulating joints installed in line with the entrance traffic lights, and turnouts, the turnout sections of which are equipped with track circuits of a tone frequency and coding on all routes according to the entrance traffic lights, the post equipment is installed in a transportable module and includes an Ethernet switch, power supply devices, a diagnostic terminal, hardware and software devices of the automated workstations of the electrician and the operator of the temporary checkpoint, a high-level CAN network,to which, through the appropriate gateway, the hardware and software device of the automated workstation of the temporary checkpoint operator is connected, and through the digital interface converter and the communication channel - the linear point of the centralized dispatch system at the reference station, as well as for each track a set of equipment containing modules of generators of a complex signal and control of track circuits connected to the lower-level CAN network, modules of interstation communication, modules for the control and interrogation of electromagnetic relays of the relay equipment for controlling switches and signals of input traffic lights and a central processor, connected by another input / output to the upper-level CAN network, while the inputs / outputs of the Ethernet switch are connected directly to the outputs / inputs of the power supply devices, the diagnostic terminal, the hardware and software device of the automated workstation of the electrician,through the corresponding interface converters to the CAN networks of the upper and lower levels, and by means of communication cables - to the corresponding outputs / inputs of the linear point of the dispatch control system and the hardware and software device of the automated workstation of the electrician at the reference station, another input / output of the hardware and software device of the automated workstation of the operator of the temporary checkpoint is connected via a communication channel to the hardware and software devices of the automated workstations of the operators of the ABTC-MSh automatic block system at the stations limiting the section, wherein each input traffic light additionally includes the signal indication "Cross", and the memory card of the central processors of the temporary checkpoint and the sets of the ABTC-MSh system at the stations limiting the section contains the configuration of the system and the parameters of the track circuits on the section in the operating modes of the temporary checkpoint: "Siding","Automatic control" and "Automatic blocking" (EA043176 A1, B61L 25 / 00, 2023.01.31).,

[0003] A drawback of the existing technical solution is the placement of the equipment in a special equipment concentration module, ensuring specific climatic conditions within the module. This complicates its installation and increases the deployment time of the equipment. This, in turn, precludes the use of a temporary checkpoint as an operational solution for temporary train traffic management. Furthermore, the technical solution does not provide for hardware expansion, and increasing the length of the operational section increases the module's volume and complicates its use in operational situations.

[0004] The closest analogue, selected as a prototype, is the known system of temporary interval control of train traffic on rapidly restored railway sections, containing a set of insulating joints connected on both sides, separating the ends of adjacent track circuits, universal interval control modules, each of which contains in its composition two track transformers, two devices for controlling passage signals of odd and even directions of movement, a device for setting modes, a control indication device, a device for communicating with an automatic crossing signaling system, a device for communicating with an adjacent station, a local serial interface and a device for changing the direction of movement installed separately at an adjacent station, a master transmitter-receiver and a slave receiver-transmitter of a two-way channel for telemonitoring and telecontrol with a carrier frequency of f = 125 Hz,a central control unit for the components of a universal interval control module, an autonomous power supply unit that includes a battery, a battery control unit, an internal combustion engine, a generator, a fuel tank, and a secondary power supply (RU 2732 636 C1, B61L 25 / 00, 21.09.2020),

[0005] The well-known system ensures safe intervals between trains following the same route, bidirectional movement and the necessary throughput capacity without the use of overhead and cable communication lines and power supply, until the operability of the technical means of interval control of train traffic previously used on it is restored in order to minimize interruptions in train traffic and, thereby, reduce economic losses and accelerate the restoration of railway tracks.

[0006] The disadvantage of this device is the impossibility of reducing the interval between trains passing each other and reducing the distance between stations in relation to the existing automatic blocking devices on the section.

[0007] The technical result of the proposed invention is to reduce the loss of throughput capacity of a section on a section equipped with a numerical code automatic blocking system by using interval control based on the ABTC-MSh in sections with speed restrictions during track work on the section or restoration of normal operation of existing devices as a result of their failure.

[0008] The technical result is achieved in that the temporary device for interval control of train traffic with movable block sections on a section equipped with a numerical code automatic block system contains temporary entrance signals at the boundaries of the switching section with the following indications: red, yellow with white, green with white, sets of ABTC-MSh equipment in temporary cabinets, the first of which is installed in line with the temporary entrance signal of the track post, others sequentially towards the main direction of movement on the ordinates of the signal points of the numerical code automatic block system, and the last one is installed in line with another temporary entrance signal on the other side of the track post, on the switching section between the entrance signals sets of equipment for coordination and connection to the rail line, each of which is located in a track box installed directly at the connection point, in each temporary cabinet there are also protection and coordination devices,a power supply module and electromagnetic relays for changing direction, a train approach notification relay, a block section control relay, a safety relay and an emergency relay, wherein the temporary connecting cable between the temporary cabinets and the track boxes is laid along the surface of the ballast and is made in the form of hoses made of twisted-pair cable with connectors at the ends, each set of ABTC-MSh equipment located in a temporary cabinet includes two control modules that interact directly with each other, and through a CAN network - with the modules of the ALSN or ALSN-EN complex signal generators, relay polling and relay control, wherein the set of ABTC-MSh equipment located in the first and last temporary cabinets additionally includes an interstation communication module, and the sets in other temporary cabinets - two interstation communication modules, each of them is connected to the CAN network, a set of ABTC - MSh equipment,located in the first temporary cabinet and cabinets installed between the first and last temporary cabinets additionally include track circuit monitoring modules connected to the CAN network, on a temporary block section of track, depending on its length within the framework of the operation of one set of ABTC-MSh, the number of track circuits is equal to two, four, six or eight, the power supply module is connected via an emergency relay to the power supply network of the ChKAB system operating on the section, protection and matching devices are installed at the input of the supply line to the cabinet and connected to the grounding conductor of the ChKAB relay cabinet or to the grounding conductor at each temporary cabinet, the H-OH direction change circuit is connected to the corresponding terminals of the relay cabinet of the operating ChKAB system and temporary cabinets installed at the boundaries of the switching section,in parallel to the current K-OK circuit within the boundaries of the switching section in each relay cabinet of the ChKAB signaling installation, circuits for monitoring the vacancy of temporary block sections with sequentially connected contacts of the safety relay of each temporary cabinet are connected, for connecting to the rail line the supply and relay ends of the TRC, controlled by the ABTC-MSh equipment set of the temporary cabinet and for linking with the ABTC-MSh equipment set of the next temporary cabinet, on the body of the temporary cabinet there is a connector designated as "output", to which the corresponding cable hose is connected, the second end of which is connected to the connector of the first track box installed at the insulating joint, for linking the relay ends of the TRC of the temporary cabinet with the relay ends of the TRC of the previous temporary cabinet, on its body there is a connector designated "input", to which the corresponding cable hose is connected, the second end of which is connected to the connector of the last track box of the previous block section,installed at the corresponding insulating joint, for the mutual connection of the ABTC-MSh equipment of temporary cabinets, linear circuits placed in the connecting cable are used.

[0009] The power module includes a frequency converter to power the microprocessor modules and corresponding rectifiers to power the rest of the equipment.

[0010] If there are railway crossings or transitions on the switching section, the ABTC-MSh notification relay is installed in a temporary cabinet, and in the corresponding track box for linking the coordination equipment and connecting to the rail line with the existing crossing automation devices or pedestrian walkways, a corresponding connector for connecting the cable hose with a branch to the automatic crossing signaling cabinet is installed.

[0011] The essence of the invention is explained by the drawings in Fig. 1. A two-line plan of a track post is shown, one of the embodiments of the proposed device, Fig. 2. A structural diagram of the ABTC-MSh equipment in temporary cabinets at the track post.

[0012] A temporary device for interval control of train traffic with a movable block section (VU PBU) is installed on a section equipped with a movable block section, regardless of the type of traction and rolling stock.

[0013] The VU PBU contains temporary entrance traffic lights 1 of the track post (NB1 and CHB1) at the boundaries of the switching section with the following indications: red, yellow with white, green with white, temporary cabinets 2-4 (VSh 2, VSh 3, VSh 4), VSh 2 is installed in line with the temporary entrance traffic light NB1, VSh 3 - towards the main direction of movement on the ordinate of the signal points CHKAB, and VSh 4 is installed in line with another temporary entrance traffic light CHB1 on the other side of the track post, in track boxes 5 the equipment for coordination and connection to the track line is installed at the switching section between the entrance traffic lights NB1 and CHB1, each track box 5 is installed directly at the point of connection to the track line of the equipment for coordination and connection.

[0014] Depending on the length of the connection section, the number of track circuits within the operation of one ABTC-MSh set is two, four, six, or eight. In the presented embodiment of the proposed device, the number of track circuits per block section within the operation of the ABTC-MSh set in VSh 2 is eight, and within the operation of the ABTC-MSh set in VSh 3, the number of track circuits is six.

[0015] The equipment for matching and connecting to the track circuit, located in PY 5, includes: a track transformer, a protective resistor, a circuit breaker, and protection and switching devices.

[0016] The number of PY 5 depends on the length of the block section, but must always be odd, the last one on the block section is PY 5, in which a matching transformer with the required transformation ratio is pre-installed for connection to the additional winding of the choke-transformer at the insulating joints.

[0017] Each VSh 2-4 contains protection and coordination devices, a power supply module and electromagnetic direction change relays, a train approach notification relay, a block section control relay, a safety relay, and an emergency relay (not shown in the drawing). The temporary connecting cable connecting VSh 2 - VSh 4 and PYa 5 is laid along the ballast surface and is made of twisted-pair cable hoses 6 with connectors at the ends (not shown in the drawing).

[0018] Each set of ABTC-MSh equipment in VSh 2 - VSh 4 includes two control modules 71 and 72 (MU 71 and 72), interacting directly with each other, and via a CAN network - with relay polling module 8 (MOR 8) and relay control module 9 (MUR 9).

[0019] The set of equipment ABTC-MSh in VSh 2 also includes five modules 101-105 of complex signal generators ALSN or ALSN-EN (MGKS 101-105) connected to the CAN-bus 9 and four modules 11 of track circuit control (MKRTS 111-114), the set of equipment ABTC-MSh in VSh 3 - four MGKCH 10 connected to the CAN-bus 9 1, 102 и 103 and MGKCH 105 and three MCRTs 11 1, 11 -2 and MKRTS 114, and the ABTC-MSh control kit in VSh 4 includes two MKRTS 111 and 112 connected to CAN-bus 9.

[0020] In VS 2-4, modules 12 of the ABTC-MSh interstation communication system are installed to ensure mutual coordination, in VS 2 - MISS 121, in VS 3 - MISS 122 and MISS 12 3, in Higher School 4-MISS 124.

[0021] The circuit for changing the direction of movement of the H-OH is connected to the corresponding terminals of the relay cabinet of the operating ChKAB system and in VSh 2 and VSh 4 in parallel to the operating K-OK circuit within the boundaries of the switching section.

[0022] In each relay cabinet of the ChKAB signaling installation, circuits for monitoring the vacancy of temporary block sections are connected with sequentially connected contacts of the safety relay of each VSh 2 - VSh 4.

[0023] For connection to the rail line of the supply and relay ends of the TRC, controlled by the set of equipment ABTC-MSh VSh 2 - VSh 4 and for linking with the set of equipment ABTC-MSh of the next temporary cabinet, on the body of the temporary cabinet there is a connector designated as "output" (not shown in the drawing), to which the corresponding cable hose is connected, the second end of which is connected to the connector of the first track box, installed at the insulating joint.

[0024] To connect the relay ends of the temporary cabinet's TRC with the relay ends of the previous temporary cabinet's TRC, a connector marked "input" is installed on its body, to which a corresponding cable hose is connected, the other end of which is connected to the connector of the last track box of the previous block section, installed at the corresponding insulating joint.

[0025] For interconnection of the ABTC-MSh VSh 2 - VSh 4 equipment, linear circuits placed in the connecting cable are used.

[0026] The power supply module (not shown in the drawing) of each VS 2 - VS 4 includes a frequency converter for powering the microprocessor modules and corresponding rectifiers for powering the rest of the equipment.

[0027] At the calculated section of the VU PBU activation, a temporary track post without track development is organized, limited by entrance traffic lights:

[0028] - on the even side there is traffic light ЧБ1,

[0029] - on the odd side there is traffic light NB1.

[0030] Entrance traffic lights NB1 and CHB1 of the track post are installed on the masts of the track traffic lights or on the supports of the contact network in the immediate vicinity of the operating control room of the ChKAB.

[0031] Track traffic lights inside the track post (between entrance traffic lights NB1 and CHB2) are turned off.

[0032] Temporary cabinets (VSh 2, ShV 4, and VSh 3) with ABTC-MSh equipment are installed at the section boundaries near the NB1 and ChB2 entrance signals, as well as at the ordinates of the ChKAB signaling units. Insulating joints at the block section boundaries and choke transformers for bypassing the insulating joints are retained. The connection points for the 5 matching equipment and connection to the track line are located between VSh 2 and VSh 3, as well as between VSh 3 and VSh 4, at equal distances from each other. The track section length between the connection points is selected to be between 250-350 meters. Adjacent connection sections cannot differ from each other by more than 10%.

[0033] A temporary cable line (connecting line) is laid between the VS-2 and VS-4 and the PY-6 along the ground surface (track ballast). This line is made of 6-pair twisted-pair cable with stranded copper conductors, such as the SBMWBPu 14x2x1 with connectors at the ends, 60 meters and 400 meters long.

[0034] To connect track circuit equipment to a track line, standard jumpers with a tip for a hole in the rails with a diameter of 10.2 mm are used.

[0035] ВШ2-4 ВУ ПБУ is assigned a number corresponding to the number of the ChKAB signal point near which it is installed.

[0036] The stage of connecting the VU PBU devices to the operating ChKAB includes switching the ChKAB relay cabinets to VSh 2-4, disconnecting the power supply in the ChKAB relay cabinet (removing the emergency relay in the operating cabinet and installing it in VSh 2-4), turning on the power supply to VSh 2-4, removing the Zh relay in the operating ChKAB cabinet to avoid accidental power supply to the K-OK line, crossing the traffic lights of the ChKAB signaling installations, connecting the direction change relay, the section control relay, the train approach notification relay, the Zh, Z relays, at the exit from the section, turning on the track circuits with the key in PYa 5 (similar to the local control key), connecting the cable cores of the connecting cable to the additional winding of the choke-transformers at the insulating joints with disconnecting the cable cores of the operating track circuits and turning on the input traffic lights of the NB1 / ChB1 track post.

[0037] The order of train movement on a section of the track, equipped with a temporary device for interval control of train movement with a movable block section, is carried out in accordance with the Instruction on the order of train movement on sections of railway lines on which interval control is carried out with movable block sections using ALS signals as an independent means of signaling.

[0038] The temporary device for interval control of train traffic with a movable block section operates as follows.

[0039] When trains move in the odd direction, the MOR 71 of the border VS 2 polls the contacts of the electromagnetic relays used for coordination with the current ChKAB: the relay for monitoring the set direction of train movement on the section, the relay for notifying about the approaching train, the relays Ж and З at the exit from the section and transmits this information to MU 72. MU 72 is a backup one; if MU 71 fails, MU 72 is automatically activated. Based on the polling results, MU 71 sends a command to the MUR 8 module, which activates the signal relays for opening the entrance signal NB1 for the set odd direction to the permissive indication in accordance with the vacancy of the outgoing section. The MUR 8 module, located in VS 4 on the ordinate of the entrance signal of the opposite direction ChB1, turns on the prohibiting indication on this signal - the red light (de-energizes the signal relays of the ChB1 switching control circuit).The transfer of information between VS 2 and VS 4 is carried out by means of MISS 12, the output circuits of which are connected by a mounting wire to the corresponding terminals of the connectors on the side wall of VS2 - VS 4. MISS 121 works with MISS 122 of the previous (in ascending order of the signal point number) VS 3 (the “INPUT” connector), and MISS 123 with MISS 124 with the next (in ascending order of the VS 4 number) “OUTPUT” connector.

[0040] Coding of the tone track circuits on the controlled section of the VU PBU is carried out by the MGKS modules located in the VSh 2-4 relay cabinets, which generate the ALSN and ALS-EN codes for the occupation of track circuits depending on the train situation ahead in the direction of travel.

[0041] The following signals are preset as operating frequencies of the shopping center in VSh2 - 4:

[0042] - 925 Hz, code 1 for MGKS 101 (RC No. 1);

[0043] - 825 Hz, code 2 for MGKS102 (RC No. 2 and 3);

[0044] - 725 Hz, code 3 for MGKS103 (RC No. 4 and 5);

[0045] - 625 Hz, code 4 for MGKS 104 (RC No. 6 and 7);

[0046] - 525 Hz, code 5 for MGKS 105 (RC No. 8).

[0047] In the case where not all eight track circuits are located within the block section, the last TRC always has a 525Hz signal.

[0048] The ALSN code generated by the MGKS 101-105VSH 2 module is selected based on the NB1 signal reading and sent to the approach block section track circuit. If the approach notification relay (IP) is energized, the code is not sent; if de-energized, the code is continuously sent to the ChKAB system track circuit via the power supply end of the last PYa 5 matching and track line connection equipment. When the train passes the NB1 entry signal and enters the VSH 2 controlled section, the MKRC 111 module stops receiving power from the MGKS 105 module of its track circuit, the first track circuit in the direction of travel is occupied by the train, and the MU 71VSH 2 module overrides the NB1 signal to a prohibiting indication via communication channels through the MUR 9 module. The input signal NB1 generates the code KZh from MGKS 105. The block section control relay (BSCR) is de-energized.

[0049] The VSh 4 MU 71 controls the ChB1 traffic light signal control circuit, which includes a PDK-M trackside receiver / decoder, the output relays of which are interrogated by the MOR 8 module (relays Zh, Z, etc.). Based on the state of these relays, the ALSN and ALS-EN codes are generated for the controlled section. After passing the ChB1 traffic light ordinate, the train continues to move according to the existing automatic blocking system or EC, which is used on the given section.

[0050] Movement in the even direction is carried out similarly.

[0051] Thus, the proposed temporary device for interval control of train traffic with movable block sections on a section equipped with a numerical code automatic block system makes it possible to organize the movement of trains in the mode of a movable block section with a reduced interval of passing traffic and control of traffic according to the signals of an automatic locomotive signaling system as the main means of signaling due to the use of interval control based on the ABTC-MSh on sections with speed restrictions during track work on the section or the restoration of normal operation of existing devices as a result of their failure.

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