BTM for storing messages

Abstract

The invention provides a BTM for storing messages. The BTM processes corresponding ground transponder information to obtain transponder user messages, and transmits the transponder user messages to avehicle-mounted safety computer VC; the BTM is the BTM with a data storage function, and line data stored in the BTM is still in a message data format of a real transponder; and a ground part of a train control system corresponding to the BTM can only be equipped with a small number of ground transponders used for positioning, the BTM determines a position of a train, the time of sending the messages and corresponding message content are sent based on position judgement, and virtual ground transponders complete sending of required messages to the VC. Technical effects of the BTM are that: theground transponder messages are stored on a vehicle-mounted BTM device; the arrangement number of the ground transponders can be greatly reduced; the engineering construction cost is reduced; and signal maintenance personnel only need to maintain a vehicle-mounted BTM part, thereby reducing a great deal of maintenance and repair work on the transponder equipment, especially a line section with poor natural conditions.

Description

technical field [0001] The invention relates to the field of train control in the railway industry, in particular to a BTM device with data storage function. Background technique [0002] Transponder transmission system is currently one of the core equipment of CTCS-2, CTCS-3, and CBTC systems, and it can also be applied to any other train operation control system that requires train-ground communication and precise positioning. The transponder transmission system consists of two parts: on-board equipment and ground equipment. The ground equipment mainly includes passive transponder, active transponder and LEU; the vehicle equipment mainly includes BTM host and BTM antenna. [0003] Among them, the BTM (Balise Transmission Module) balise transmission module is mainly used to process the ground balise information, obtain the balise user message and send it to the train operation control system. The transponder is used to transmit positioning information, line parameters, tr...

AI Technical Summary

Problems solved by technology

Since every interval (such as 2 to 4 kilometers) it is necessary to find a suitable rail track of 30 meters to 40 meters to lay the passive transponder group (to meet the slope requirements, curvature requirements, and other environmental factors, such as electromagnetic field requirements, etc.) ; and the laying environment of railway lines is complex, and it is often difficult to find rail lines that meet the above requirements in the required railway line sections, resulting in the inability to lay passive transponder groups at suitable locations, or to lay enough passive transponders as required group

[0007] 2) The cost of each transponder itself is about 10,000 yuan, and the more transponders are laid, the higher the cost

[0008] 3) The transponder is laid in the center of the track, and the daily use and maintenance of the equipment requires a large amount of manpower, especially in a large number of deserts, plateaus, mountains and uninhabited areas in western China. The natural conditions are harsh, which also increases the difficulty and cost of use and maintenance

[0009] 4) The part of the BTM host and antenna used to receive transponder information is a high-power analog circuit. When the corresponding functional module fails, it cannot normally receive the message data of the transponder, especially in CTCS2 level and CBTC train control signal systems. This part of the circuit is a non-redundant part, once a failure will cause a greater impact

Since the situation of existing lines is more complex and harsh than that of high-speed rail lines, the above problems are more prominent when transponders are applied to existing lines

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