RU2583397C1 - System for interval control of train traffic on railway hauls - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to devices for signalling, centralising and blocking on railway transport and can be used in systems for traffic control on station limits. System comprises haul ternary interlocking device with rail circuits of block sections, track hardware units, post electric interlocking device. On each locomotive involved in transportation process span there is onboard control device, unit of locomotive continuous automatic cab signalling, receiver, radio modem, display for displaying information and wireless modem control microprocessor unit are installed. Wireless modem control microprocessor unit includes timers-counters, read-only memory module and module of random-access memory.

EFFECT: simplified design.

1 cl, 1 dwg

Description

The invention relates to devices for signaling, centralization and blocking in railway transport and can be used in systems for interval regulation of train traffic on sections, mainly in block sections, the track infrastructure of which allows the movement of passenger trains at speeds above 160 km / h

A well-known system of interval regulation of train traffic on the stages, containing three-digit self-locking (AB) devices with rail circuits connected to fasting devices for electrical centralization (EC) of stations limiting the stage, and a control center, which is connected via line trunk communication with fasting stations for EC, this, the control center for controlling the long-distance digital radio channel is connected to the on-board control devices of the locomotives of trains involved in the control room phenomenon, in each of which the onboard control device connected with the onboard satellite navigation receivers (RU 2387563, B61L 27/00, 27.04.2010).

In the known system of interval regulation of train movement on stages, safe speeds and intervals between simultaneously following trains on stages are automatically supported by locomotive on-board control devices together with AB devices. On each of the locomotives, the on-board control unit continuously calculates the current location coordinates and the speed of the train, taking into account the auto-driving program. Taking into account information about the length of the train and its speed, as well as the length of the block section along the route, the on-board device periodically calculates the predicted time of release of the next block section and transmits this data via a digital communication radio channel to the control center. Based on the received data, the calculated time for changing the yellow light to the green light at the second traffic light in the direction of the train is transmitted to the control center based on the received data.

However, the known system contains a large number of expensive long-range digital radio communication equipment, including intermediate relaying devices for long haul distances, and control from one dispatch center in the event of a malfunction of the center equipment or communication lines with it can lead to termination of traffic control on the entire haul.

The closest technical solution, selected as a prototype, is an interval control system for the movement of high-speed trains on the train, containing blocks of track equipment of automatic locomotive signaling of continuous operation installed on block sections of the train and connected by a communication line on the locomotive of each train involved in transportation process on the stage, the on-board control unit includes a block of locomotive equipment of an automatic locomotive signal of continuous operation, at each block section, the inputs of the track equipment block of automatic continuous locomotive signaling are connected to the outputs of three-digit auto-blocking devices installed on the block section with continuous traffic lights and rail chains, and the output to the rail line of the block section, at the beginning of each block - a transceiving device with a low-power transmitter is installed, the input / output of which is connected through the interface unit to the output / input of the track unit of the automatic locomotive As a continuous signaling system, an on-board transceiver device with a low-power transmitter and an on-board interface module are additionally installed on train locomotives, the first port of which is connected to the output / input of the on-board transceiver device, the second port is connected to the output / input of the on-board control device, and the output is connected to the display input the driver, while the transceiver devices of sequentially located block sections and the airborne transceiver device are made with the possibility of self-org of a digital radio communication network of the frequency range ISM or GSM, while the system also includes stations for limiting the haul, stations of electrical centralization, the inputs / outputs of which are connected via the communication channel to the corresponding outputs / inputs of the blocks of track equipment of continuous automatic locomotive signaling (RU 2511748 , B61L 23/16, 04/10/14).

This system has a high fault tolerance due to the decentralized location of the equipment on the stage and has increased information content due to the use of an additional information channel about the freedom of more than three block sections of the stage. This allows you to increase the throughput and efficiency of high-speed trains on the stretch at a relatively low cost for the equipment of block sections of the track.

The disadvantage of this system is its comparative technical complexity, due to the presence of transceiver equipment of a low-power digital radio channel as part of the track equipment of signal points on the stage.

The technical result of the invention is to simplify, while maintaining its effectiveness in controlling the movement of high-speed trains on the stages.

The technical result is achieved by the fact that in the system for the interval control of train traffic on the stages, containing on the way the device has a three-digit auto-blocking with rail chains of block sections, the track equipment blocks of which are connected by a communication line and with station devices for electrical centralization of stations that limit the stage, on the locomotive of each train involved in the transportation process on the stage, a block of locomotive equipment of continuous locomotive signaling and a short-wave and / or ultra-short-wave frequency radio modem, the first port of which is connected to the first port of the on-board control device, the second port of which is connected to the information display display port, according to the invention, the second port of the radio modem is connected to the first port of the microprocessor control unit of the radio modem, having the function of a temporary local mobile radio network node with a topology of the MESH type, the second port of the microprocessor unit connected to the port of the satellite navigation signal receiver unit, while the microprocessor unit includes first and second timer counters, a permanent memory module, in which the coordinates of the boundaries and the corresponding numbers of virtual sections of all the haul lines are recorded, and a random access memory module for addresses and data received from nodes of the local mobile radio network with a topology of the MESH type, which includes the radio modem, while the coordinator of the local mobile radio network is the radio modem of the locomotive of the first of the group trains, the coordinate of the current position of which is closer than that of other locomotives to the end of the haul.

The drawing shows a diagram of the proposed system for interval regulation of the movement of trains on the hauls.

The system for interval regulation of train traffic on the hauls comprises, on the path of each haul, a three-digit self-locking device with rail chains of block sections 1 and traffic lights 2, the track equipment blocks 3 of which are connected by a communication line and with guard devices 4 of the electrical centralization of stations that limit the haul, on the locomotive 5 of each train involved in the transportation process on the stage, the unit 7 of the locomotive equipment is automatically included in the onboard control device 6 a continuous locomotive signaling system and a short-wave and / or ultra-short-wave radio frequency modem 8, the first port of which is connected to the first port of the on-board control device 6, the second port of which is connected to the display port 9 of the information display, the second port of the radio modem 8 is connected to the first port of the microprocessor unit 10 controlling a radio modem having the function of a temporary local mobile radio network node with a topology of the MESH type, the second port of the microprocessor unit 10 is connected to the port OKA 11 is a receiver of satellite navigation signals, while the microprocessor unit 10 includes the first 12 and second 13 counting timers, a read-only memory module 14, in which the coordinates of the boundaries and the corresponding numbers of virtual sections of all the haul lines are recorded, and a RAM module 15 for addresses and data received from nodes of the local mobile radio network with a topology of the MESH type, which includes the radio modem 8, while the coordinator of the local mobile radio network is the radio modem 8 of the locomotive 5 of the first of the train group , The coordinate of the current location that is closer position than other locomotives by the end of haul.

The system for interval regulation of train traffic on the stretches works as follows.

When auto-locking, traffic lights 2 are the main means of regulation, and to improve traffic safety, the automatic-locking systems are supplemented by ALSN devices that provide information on the free or busy state of three block sections 1 closest to the train in the driver’s cab. This limits the speed of passenger trains traveling to 160 km / h to traffic lights 2 with green light, including when the track infrastructure of block section 1 behind this traffic light 2 allows movement at a higher speed. In cases where, in addition to the ALSN information of a numerical code, it is possible to transmit information on the free state and permissible speeds to locomotives 5 of high-speed passenger trains, according to the condition of the track infrastructure of more than three block sections 1, the speed can be increased by gradations 10-20 km / h for each additional block section. This is possible if there are multi-valued ALSNs on locomotives 5 and on the way to serviceable devices. In the absence of such devices or their failures, the proposed system additionally provides the possibility of traffic lights going under the green light at a speed of more than 160 km / h due to the fact that the on-board control devices 6 of locomotives 5, when they approach the next traffic light 2, receive the necessary information about the possibility of movement under the green light of traffic light 2 at a speed of more than 160 km / h through on-board radio modems 8.

That is, if a large number of block sections 1 is free with permissible speeds, for example, up to 290 km / h, the speed of the train with each subsequent block section 1, if necessary, can gradually increase to 290 km / h, until speed limit information is received .

The system alternates the cycles of the formation of temporary local mobile communication networks between the radio modems 8 of the locomotives 5 located on the haul and the cycles of the exchange of information between these radio modems 8 about the parameters of the current movement plans of the locomotives 5 for mutual coordination of these movement plans in the onboard control devices 6. For this, in the on-board control devices 6, the first 12 and second 13 timer counters work. The first timer counter 12 is synchronized from the satellite navigation receiver 11, and the second timer counter 13 is synchronized from the first timer counter 12. The first timer counter 12 generates alternating cycles for the formation of temporary local mobile communication networks between the radio modems 8. And the second timer counter 13 sets the time intervals of a certain duration and considers their current number within the cycles of assigning numbers to nodes of the mobile radio network. Using the time interval number, the microprocessor unit 10 for controlling the radio modem 8 of the radio network coordinator determines the number of the current virtual section of the haul track on which the locomotive 5 is located. To do this, it compares data on the current coordinate from block 11 of the satellite navigation signal receiver and data on the coordinates of the boundaries of the virtual section with a number equal to the number of the current time interval in the second timer-counter 13 with data from the module 14 of the permanent memory, in which the coordinates of the face are recorded virtual regions. After that, the radio modem 8 of the corresponding locomotive 5 and the network node that will correspond to it receive a number equal to the number of this virtual section for connection to the temporary local mobile radio network in the next cycle of the system. In the next cycle of the system’s work, temporary local mobile communication networks are formed between the radio modems of 8 locomotives 5. Their formation begins in the order of the position on the path of the given direction of trains, counting from the last occupied virtual leg at the end of the leg. The corresponding radio modem 8 of the locomotive 5 occupying this virtual section transmits a broadcast request to be the coordinator of the first, counting from the end of the haul, temporary local mobile communication network.

This radio modem 8 receives responses from the radio modems 8 of the locomotives 5 located in the area of stable radio communication with it, on the carrier radio frequency KB and / or VHF radio frequency band. These radio modems 8, the coordinator radio modem 8, includes in the first tier of its self-organizing temporary local mobile radio communication network. Each of the radio modems coordinator 8 connected to the coordinator network then relays the request of the radio modems 8 of the locomotives 5 located in the area of unstable radio communication with the coordinator, but stable radio communication with them, and so on, until all radio modems 8 that can be connected to the temporary local mobile radio network are connected. Such a local mobile radio communication network is itself organized according to the MESH type topology using the numbering of its nodes in the order corresponding to the numbers of the virtual sections of the haul path occupied by locomotives 5. The process of forming a second local mobile radio communication network begins after a predetermined time interval sufficient to form the first radio network that the radio modem 8 of the locomotive 5, having a coordinate closer to the end of the haul, than the other radio modems 8 with which he is trying to contact, finds itself not connected united to the network of the first coordinator. Then he, like the first coordinator, becomes the second coordinator and similarly forms the second local mobile radio communication network. And so on, until the timer-counter completes the 12th cycle of the formation of local mobile radio communication networks on the stage. As a result, on the stage, in the cycle of formation of local mobile communication networks, one or more of one such local mobile communication networks can be formed. In the process of radio exchange, radio modem 8, which has become the coordinator of its local radio network, transmits data packets along routes that require a minimum number of transitions between network nodes or alternative routes with a large number of transitions, but with more reliable data delivery. The reliability of data delivery is determined during the reception of data packets by radio modems 8 by calculating the intensity of information bit distortion (BERR) by the microprocessor unit 10. If his BERR exceeds the established norm, the corresponding radio modem 8 requests the coordinator to retransmit data on the alternative route. Since the minimum communication distance of the radio modems 8 to each other in the VHF band is 5-10 km, more than one local mobile radio communication network on a haul can be formed only on long hauls and with a very low density of trains on all haul haul in the next cycle of formation of local mobile communication networks. The formation of several local mobile communication networks on line 1 does not interfere with the effectiveness of train control, since trains of the same direction and paths related to different local mobile communication networks are so remote from each other that their movement, even high-speed, is independent. For efficient interval control of train movements and speeding up radio exchange, the network coordinator delivers detailed information about traffic plans, usually for two trains following the same direction and along one lane, only after each train that has current or planned restrictions in the near future at the maximum speed of its movement and at a distance of following the next train from the group less than 10 km. At the same time, to improve traffic safety, all trains of the group receive warnings from oncoming trains, and trains on other railway lines about dangers ahead in the direction of travel, if there are such warnings. These can be warnings about the danger of a head-on collision or the dangers associated with violation of the approximate size, presence of foreign objects on the tracks, vehicles, people and animals, foliage, damage to the railway, etc.

Registration of addresses of all radio modems 8 in the local mobile communication network is carried out by a microprocessor unit 10, which controls the radio modem 8 of the radio network coordinator. It stores the addresses in the RAM module 15. The data of the nodes of the local mobile radio network enters the memory of the microprocessor unit 10 at the same time as the nodes are connected to the mobile radio network. The microprocessor unit 10, which controls the radio modem 8 of the radio network coordinator, writes to the RAM block 15 data packets with the current movement plan of the corresponding trains of its group following its train along the same path and warnings about obstacles from other trains of the group. Each such block 10 performs the role of a mobile coordinated control center for each group of trains integrated by its local mobile communication network. This allows the onboard control devices 6 of the locomotive 5 trains of the group to consistently optimize their traffic plans as if they are controlled from a single mobile dispatch control center. This control scheme has greater survivability compared to a fully centralized control on each stage from the stationary center of the dispatch control used in known technical solutions.

In the process of forming the structure of the MESH network, the coordinator microprocessor unit 10, together with the formation of its local radio network, performs the functions of priority messaging. At the same time, it takes into account the priorities associated with the specifics of controlling the movement of its group of trains. For example, it, first of all, forms the ways of transmitting to other trains (the nearest two or more following each train having a speed limit plan) the information necessary for coordinated control of their movement. Also, the microprocessor unit 10 of the coordinator generates and transmits hazard warnings to the locomotives 5 that are closest in coordinate to the place of this danger, providing additional reliability in the delivery of this information, for example, by duplicating the transmission paths of information responsible for the safety of train traffic.

The minimum information about the plan of movement of one train may contain the direction of the train, the current speed and the coordinate of its locomotive 5, the indications of traffic lights 3 in front of the lying block sections 1 and information on the constant and temporary speed limits on these block sections 1. The extended information may additionally include the length of the train composition or the current coordinate of the location of the last train car, if the train is equipped with a tail carriage unit with its own satellite navigator and integrity control device and train composition, etc. Before the locomotive 5 of the first train in the group leaves this stage, the microprocessor unit 10, controlling its radio modem 8, transfers the functions of the coordinator of the mobile radio network to control the radio modem 8 of the locomotive 5 of the next train if stable radio communication is maintained between the radio modems 8 of these trains . This simplifies and speeds up the process of reconfiguring this mobile radio network in the next cycle of forming temporary local mobile communication networks.

The inventive system has a higher survivability, reliability and security due to the decentralized location of communication equipment and due to the lack of this equipment on the way. At the same time, it has functionality similar to a centralized traffic control system and is especially effective for long hauls of high-speed lines, with a relatively low density of trains along one of the haul routes.

Claims (1)

A system for interval regulation of train movement on the stages, containing on the way the three-digit auto-blocking device with rail chains of block sections, the track equipment blocks of which are connected by a communication line and with electrical centralization devices of stations limiting the stage on the locomotive of each train involved in the transportation process on the stage, the on-board control unit includes a block of locomotive equipment for automatic continuous locomotive signaling and a short-wave and / or ultra-short-wave frequency range radio modem, the first port of which is connected to the first port of the on-board control device, the second port of which is connected to the information display display port, characterized in that the second port of the radio modem is connected to the first port of the microprocessor control unit of the radio modem having function of a temporary local mobile radio network node with a topology of the MESH type, the second port of the microprocessor unit is connected to the port of the signal receiver unit with navigation, with the microprocessor unit including the first and second timers, counters, a permanent memory module that records the coordinates of the boundaries and the corresponding numbers of virtual sections of all haul lines, and a random access memory module for addresses and data received from local mobile nodes a radio network with a topology of the MESH type, which includes a radio modem, while the coordinator of the local mobile radio network is the radio modem of the locomotive of the first train group, the coordinate of the current position which is closer than the other locomotives by the end of haul.