BTM for storing messages

A technology of messages and message data, which is applied to signal indicators on vehicles, railway car body parts, railway signals and safety, etc., can solve problems such as complex laying environment, difficulty in finding rail lines, and harsh natural conditions, and achieve The effect of reducing maintenance and repair work, reducing engineering construction costs, and improving system reliability

Active Publication Date: 2018-11-09
BEIJING JIAODA SIGNAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 mainten...

Method used

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  • BTM for storing messages

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 All line data is stored in the car

[0032] When the train leaves the station, the driver stores the data required for the line in the on-board BTM device. All transponder message data passing by within the locomotive driving line need to be stored in the on-board BTM device. Correspondingly, data verification can be performed in a certain way to ensure data security and correctness. Specifically, the data can be checked through CRC checks, and the data version and identification can be obtained to assist in confirmation. Correspondingly, when the required line data changes, it can be updated by re-storage.

[0033] When using the message data stored in the vehicle, it is necessary to send the corresponding message to the vehicle VC at a specific time and place according to external information, that is, when the transponder is actually passed, so the vehicle part needs to check the content and time of sending the message judge.

[0034] The line data s...

Embodiment 2

[0047] Embodiment 2 Wireless communication to obtain vehicle data

[0048] If wireless communication is used to obtain BTM on-board data, that is, the message data corresponding to the locomotive driving line can be stored in the ground vehicle depot or in workstations equipped with railway signal foundations along the line, such as stations and stations. When the train leaves the warehouse or passes through the wireless coverage area of ​​the workstation such as the line station, the wireless base station equipment set in the workstation communicates with the on-board wireless unit module of the BTM. The interactive content includes the verification of the data content. If the data is inconsistent, the data validity can be arbitrated by judging the data version, or the data validity can be confirmed by the data update time, or the secret key.

[0049] In this way of data update, each workstation only needs to update the data content in the interval between this workstation an...

Embodiment 3

[0053] Embodiment 3 Use the loop line device to upload vehicle data

[0054] Another way to upload data to the BTM vehicle requires setting a ring line device that stores multiple transponder messages on the ground line. Under this scheme, the data storage link needs to be adjusted, as follows:

[0055] It is realized by building a ring line device on the line. The ring line device is stored at the exit and entrance of the station or section to store the message data required by the line where it is located.

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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...

Claims

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Application Information

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IPC IPC(8): B61L27/00B61L15/00
CPCB61L15/0072B61L27/70B61L27/40
Inventor 赵会兵牟海涛
Owner BEIJING JIAODA SIGNAL TECH
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