RU2578638C1 - Station device for controlling train movement - Google Patents

Abstract

FIELD: radio engineering and communication; transportation.

SUBSTANCE: invention relates to railway automation and telemechanics, in particular, to systems for controlling train movement. Device comprises a two-channel data transmission unit, a device for input of information from objects of systems with centralised arrangement, a radio modem, a device for communication with adjacent stations, a network switch center, which is connected to the receiver of a satellite navigation system. Additionally included are: a device for input of information from objects of systems with decentralised arrangement, a station information concentrator, an interface converter and a unit for indication of serviceability status of the station device; at that, the station information concentrator is connected via a cable line with outdistanced objects, which include interconnected between themselves outdistanced modems, programmable logic controllers and discrete input/output modules; the station information concentrator is connected via the interface converter with converter RS-232 and through Ethernet interface to the network switching center, while the indication unit is connected with CAN interface and two-channel data transmission unit. At that, the unit for communication with adjacent stations includes connected to Ethernet interface multiplexer and a router which is connected by Ethernet interface with the network switching center.

EFFECT: there is achieved expansion of functional capabilities of the device.

1 cl, 1 dwg

Description

The invention relates to the field of railway automation and telemechanics, in particular to systems for controlling the movement of trains using a radio channel, and can be used at railway stations to increase the throughput of the line.

An interval control system for train movements based on satellite navigation aids of a digital radio channel with a coordinate control method, containing electronics, indication, switching and data input units interconnected by a cable of the CAN-system interface located in the driver’s cab, the electronics unit is capable of determining the permissible speed mode and monitoring its compliance by fixing feedback signals from the driver’s vigilance knob, internal background testing of each module, as well as two-channel information processing and includes two central information processing modules, a route module, a digital radio channel module, two modules for measuring motion parameters, two external device modules, a security monitoring system and an electro-pneumatic valve amplifier, an indication unit is made with the ability to prepare the information necessary for the driver, its registration and indication, interaction with the driver through the security handle and information input buttons, the display and display of locomotive and train characteristics, current time, actual speed and their preservation during a power outage and includes a registration module, a control module and an indication module, a switching unit is configured to turn on the power of the device, make its connections with peripheral equipment, and switching links when changing the control cab of the locomotive and includes a node for generating data on the state of the control circuits of the locomotive. A packet communication unit has been introduced into the system, which is connected to an electronics unit and is designed to obtain the tail coordinate of the train ahead, and a stationary device consisting of a personal computer installed on an automated workstation connected to a radio modem, the second port of which is connected to a duplex filter connected to the antenna the radio channel and the input of the lightning arrester, the output of the navigation receiver, the input of which is connected to the antenna, and the output of the device are connected to the personal computer AWP opryazheniya - with electric interlocking systems, centralized traffic control, supervisory control, automatic locking (RU 93766, B61L 23/34, B61L 25/04 10.05.2010).

A disadvantage of the known device is the limited functional use of the radio communication channel between the station device and trains. The volume of radio exchange between station and locomotive devices is limited by the procedure for identifying a locomotive device, transmitting a command to follow a closed traffic signal, transmitting a route number when moving around a station, transmitting the tail coordinate of a train ahead and forcibly braking rolling stock with a command from a station personal computer.

The closest analogue to the claimed invention in terms of essential features and functionality is a station device for a train control system, comprising a control unit associated with devices of automatic locking and electric centralization systems, a radio modem and a satellite navigation receiver equipped with a data transmission unit consisting of two interconnected microprocessor modules, two blocks of inter-exchange data exchange, two-channel block monitoring the station objects and the switch, the first output / input of the first microprocessor module connected to the first unit of inter-office data exchange, and the first output / input of the second microprocessor module connected to the second unit of inter-office data exchange, the second output / input of the first microprocessor module connected to the first input two-channel control unit of the station objects, the second output / input of the second microprocessor module is connected to the second input / output of the two-channel control unit of the station objects, the satellite navigation receiver is connected via a switch to the inputs of the microprocessor modules, the third outputs / inputs of which are connected to the inputs / outputs of the control unit, and the fourth output / input of the first microprocessor module is connected to the radio modem (RU 2492090, B61L 23/34, 2013).

A disadvantage of the known device is the impossibility, without adjusting the equipment parameters, of obtaining information from decentralized auto-blocking objects when the station is adjoined on one side by a distillation equipped with a centralized self-locking system, such as a digital to analog block, and, on the other hand, a distillation equipped with a decentralized self-locking system, such as a numeric code auto-lock .

The technical result of the invention is to expand the functionality of the device by providing information retrieval from objects of automatic locking and electrical centralization systems having both a centralized location of equipment and a decentralized location of equipment.

The technical result of the invention is achieved by the fact that in a station device for a train control system containing a two-channel data transmission unit, an information input device from centrally located system objects, a radio modem, a communication device with neighboring stations, a network switch that is connected to a satellite navigation system receiver , according to the invention, a device for inputting information from system objects with decentralized placement, a station information hub , an interface converter and a unit for indicating the health of the station device, the station information concentrator connected via a cable line to distillation objects, which include interconnected distillation modems, programmable logic controllers and discrete input / output modules, the station information concentrator is connected via an interface converter to RS-232 interface and through the Ethernet interface with a network switch, and the unit for indicating the health of the station device is inter eysom with dual CAN data transmission unit, wherein a communication device included with the neighboring stations associated multiplexer Ethernet interface and a router, which is connected to Ethernet interface to a network switch, a multiplexer connected to a digital communication channel by a fiber optic cable with similar multiplexers of neighboring stations.

The drawing shows a station device for a train control system.

A station device for a train control system contains a two-channel data transmission unit 1, a device for inputting information from centrally located systems, a radio modem 3, a communication device 4 with neighboring stations, a network switch 5, which is connected to the receiver 6 of the satellite navigation system. A device 7 for inputting information from system objects with a decentralized location, a station information concentrator 8, an interface converter 9 and a unit 10 for indicating the health of the station device are introduced into the station device. Moreover, the station information hub 8 is connected via a cable line to the distillation objects 11, which include interconnected distillation modems 12, programmable logic controllers 13 and discrete input / output modules 14. The station information concentrator 8 is connected via an interface converter 9 with an RS-232 interface and through an Ethernet interface with a network switch 5. The station device health indication unit 10 is connected by a CAN interface to a two-channel data transmission unit 1. At the same time, a multiplexer 15 and a router 16 connected by an Ethernet interface are included in the device 4 for communication with neighboring stations, which is connected by an Ethernet interface to a network switch 5, and the multiplexer 15 is connected by a digital communication channel via a fiber-optic cable with similar multiplexers of neighboring stations.

Block 1 is a small-sized industrial computer, consisting of two independent computing nodes - “Section 1” and “Section 2”, connected by an RS232 interface. One section of block 1 is connected by the RS-422 interface to the first radio modem 3 and the other is connected by the RS-422 interface to the second radio modem 3 for data exchange with a safe locomotive integrated train complex (BLOCK) of trains located in the digital radio channel coverage area on the stretch or adjacent stations. To the first radio modem 3 are connected antenna-feeder devices directed towards one side (not shown in the drawing), and to the second radio modem 3 are antenna-feeder devices directed towards another side.

The network switch 5 is connected by an Ethernet interface with a converter 9 of the interfaces with both sections of the two-channel data transmission unit 1 and with the communication device 4 with neighboring stations.

In the relay cabinets of the distillation objects 11 (decentralized objects), programmable logic controllers 13 are installed, the discrete input / output modules 14 connected to them by the RS-485 interface and the distillation modems 12 connected by the RS-232 interface to the programmable logic controllers 13 and connected by a cable line to the station hub 8 information about the status of objects with decentralized placement.

The station information concentrator 8 is connected by an RS-232 interface with an interface converter 9, connected by an Ethernet interface with a network switch 5 and an RS-422 interface with a receiver 6 of a satellite navigation system (GPS-Global Positioning System / GLONASS).

The unit 10 for indicating the health of the station device is connected by the CAN interface to the two-channel data transmission unit 1 and is composed of two groups of relays and yellow and red light cells installed on the control panel of the station duty officer.

A station device for a train control system operates as follows:

The two-channel data transmission unit 1 performs the functions of a central processor for generating data on the train situation at the current time at the station and the adjacent hauls, one of which is equipped with a centralized automatic blocking system (DAC) and the other with a numerical code blocking. The input of information is carried out from the device 2 for inputting information from objects of systems with a centralized location and the device 7 for inputting information from objects of systems with a decentralized location.

Entering into block 1 information on the state of electric centralization and self-locking facilities having a centralized location of equipment at the electric centralization station is carried out by cyclically polling relay contacts of these systems (on the position of arrows and signals), generating and transmitting the corresponding code. Block 1 through the RS-485 interface receives the status codes of the objects of the Central Bank system on the paths of "their" part of the stage, which is adjacent to the station, and the status codes of the objects of the electrical centralization system with centralized equipment placement.

Unit 1 receives information about the objects of the digital-to-analog coder system of the “neighboring” part of the stage, which adjoins the neighboring station, from the unit installed on the neighboring station, similar to block 1, through multiplexer 15, router 16 of communication device 4 with neighboring stations and network switch 5.

Information about the status of the objects of the system of numerical code automatic blocking (for example, relays) located in relay cabinets on another stage adjacent to the station is supplied from relay contacts to discrete input / output modules 14. The modules 14 cyclically interrogate the relay contacts according to the command transmitted via the RS-485 interface from the programmable logic controllers 13, and the corresponding codes are generated, which are transmitted to the communication line. From programmable logic controllers 13 via the RS-232 interface, these codes are transmitted to the distillation modems 12 of the distillation objects 11.

The distillation modems 12 transmit information about the state of objects with decentralized placement via two signaling and signaling systems (alarm, centralization, blocking) to the station hub 8. The concentrator 8 receives information from all the distillation modems 12 and divides this information into channels for each programmable logic controller 13. Signals programmable logic controllers 13 for converting them into the format required for the central processor — the Ethernet network interface — are fed to the inputs of the interface converter 9.

Further, the information enters a network switch 5 (Ethernet network) for organizing a data exchange network between a two-channel data transmission unit 1 and an interface converter 9, a station concentrator 8 of information on the state of objects with decentralized location, distillation modems 12, programmable logic controllers 13 and input modules 14 / output.

A router 16 connected by an Ethernet interface to a network switch 5 and a multiplexer 15, which are a part of the communication device 4 with neighboring stations, provide inter-office communication via digital communication channels of the DSS (central communication station - a branch of Russian Railways). Information is transmitted through them to the station device for the train control system on the state of objects of the whole stage in the case of equipping it with a numerical code blocking and on the state of objects of the "neighboring" part of the stage in the case of equipment with its centralized automatic blocking, for example, a TsAB type.

Block 1 converts information from self-locking and electrical centralization systems and from other systems (for example, from a hardware-software complex of supervisory control) into a specific format for transmission via RS-422 interface to stationary devices of a digital radio channel - the first radio modem 3 and the second radio modem 3 and subsequent transmission to locomotive devices of the train radio channel.

From radio modems 3, block 1 receives the following messages:

- train number, train coordinate, actual speed of the train, number of the haul route, position of the controller;

- confirmation of the receipt of the condition of the stage;

- confirmation of the receipt of the status of the station facilities.

For temporary separation of data transmission channels between a station device for a train control system of one station and a similar device of a neighboring station, a satellite navigation system receiver 6 and an interface converter 9 are used, connected via a network switch 5 to both sections of a two-channel data transmission unit 1. Based on the received GPS signals, block 1 calculates the time moment for transmitting messages to the radio channel once every 3 seconds. The locomotive devices of the radio channel based on the time of receipt of messages from the radio modem 3 calculate the relative time for the transmission of their own messages in the radio channel. Thus, the synchronization of stationary and locomotive devices of the radio channel occurs cyclically with a period of 3 seconds.

The correct functioning of the station device for the train control system is controlled by the unit 10 for indicating the health of the station device controlled by relays using external commands received via the CAN line from the sections of block 1. The yellow cell of the indication of block 10 is turned on by a serial connection of the front contacts of all relays connected to the sections of block 1. The red cell of the indication of block 10 is turned on when the rear contact is closed, at least one of the relays including the yellow cell.

The data transmitted to the locomotive devices of the radio channel include the following objects:

- route No. (presence / absence of its installation and presence / absence of its use);

- block section No. (free / busy);

- the direction of movement on the way No. (reception / departure);

- indication of the input traffic light No. (red, yellow, green, etc.);

- restriction “1” on route No. (yes, no);

- restriction “2” on route No. (yes, no);

- restriction “3” on route No. (yes, no);

- restriction "1" on the block-section No. (yes, no);

- restriction "2" on the block-section No. (yes, no);

- restriction “3” on block-section No. (yes, no).

In accordance with the object “route No.”, the locomotive devices of the radio channel determine the number of free block sections ahead of the train at the station (for train routes on tracks equipped with multi-valued automatic locomotive signaling (multi-valued ALS)).

In accordance with the “block section No.” object, the device determines the number of free block sections ahead of the train on the stage (for block sections equipped with a multi-valued ALS, including for the wrong direction of movement).

The object “direction of movement on track No.” is used by devices to determine the number of free block sections ahead in the direction of the train on the train (for each train track equipped with a multi-valued ALS).

The object “indication of the input traffic light No.” is used to determine the number of free block sections ahead of the train at the station (for input traffic lights equipped with a multi-valued ALS, including when driving from the wrong track).

The object “restriction“ 1 ”on route No.” is used to determine the number of free block sections ahead of the train in the station if there is ALSN code “Zh” on the rails (for train routes on tracks equipped with a multi-valued ALS).

The object “restriction“ 2 ”on route No.” is used for timely stopping of a train before an obstacle in the event that a barrage signal is turned on at the crossing (for train routes included in sections close to level crossings for which a multi-valued ALS is provided).

The object “restriction“ 3 ”on route No.” is used to limit the permissible speed to 160 km / h with the high-speed pass through the station or moving off (for train routes for which a multi-valued ALS is provided).

The object “restriction“ 1 ”on block section No.” is used to determine the number of free block sections ahead in the direction of the train on the stretch if there is ALSN code “Zh” on the rails (the presence of the “Zh” code fixes a safe locomotive integrated complex 5) ( for block sections of tracks equipped with multi-valued ALS).

The object “restriction“ 2 ”at block section No.” is used for timely stopping of a train before an obstacle in the event that a barrage signal is turned on at the crossing (for block sections of tracks included in sections approaching level crossing equipped with a multi-valued ALS).

The object "restriction" 3 "on block section No." is used to limit the permissible speed to 160 km / h when the mode of high-speed crossing is switched off (for block sections of tracks included in sections approaching level crossings for which a multi-valued ALS is provided )

Thus, information data from signaling devices is transmitted from a station device for a train control system to locomotive devices of a train’s radio channel when it is moving along a stage equipped with one of the variants of the automatic blocking system: a centralized blocking system or a numeric code blocking.

The effectiveness of the station device for the train control system is to expand the functionality by providing information retrieval from relay objects of automatic blocking and electric centralization, having both centralized placement of equipment at the post and decentralized placement of equipment.

Claims (1)

A station device for a train control system containing a two-channel data transmission unit, a data input device from centrally located systems, a radio modem, a communication device with neighboring stations, a network switch that is connected to a satellite navigation system receiver, characterized in that a device for inputting information from objects of systems with decentralized placement, a station information concentrator, an interface converter and an indication unit the station device, and the station information hub is connected via a cable line to the distillation objects, which include interconnected distillation modems, programmable logic controllers and discrete input / output modules, the station information concentrator is connected via an interface converter to the RS-232 interface and through Ethernet interface with a network switch, and the station health indicator is connected via a CAN interface to a two-channel data transmission unit at the same time, a multiplexer and a router connected by an Ethernet interface are connected to the communication device with neighboring stations, which is connected by an Ethernet interface to a network switch, and the multiplexer is connected by a digital communication channel via a fiber-optic cable to similar multiplexers of neighboring stations.

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