A method and system for automatic redundancy switching of ground electronic units in a railway train control system
By introducing an N+1 redundancy automatic switching system into the railway train control system, the problem of long operation time caused by manual switching after the failure of the siding LEU equipment has been solved. Automatic switching is realized when the main LEU equipment fails, which improves the automatic switching of the train control system, improves the train operation efficiency, and solves the problem of train operation efficiency in the existing technology.
CN116476898BActive Publication Date: 2025-12-02CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
Patent Information
- Application Number
- CN202310528293.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2043-05-10
Smart Images
Figure CN116476898B_ABST
Abstract
This invention belongs to the field of railway signaling technology and discloses a method and system for automatic redundancy switching of ground electronic units in a railway train control system. The method involves setting up a switching logic controller, which includes a main control chip, a power supply module, a LEU front channel switching module, and a LEU rear channel switching module. The LEU front channel switching module is connected between the train control center and the LEU, and the LEU rear channel switching module is connected between the LEU and the active transponder. The main control chip is connected between the LEU front channel switching module and the LEU rear channel switching module. The power supply module is connected to the LEU front channel switching module, the LEU rear channel switching module, and the main control chip. The communication status between the train control center and the LEU is periodically queried. If the status packet of the primary LEU is not obtained within a preset time, the primary LEU is determined to be faulty. When the primary LEU fails, the LEUi-QHJ is demagnetized and falls, causing the front contact of the LEUi-QHJ to disconnect. This invention solves the problem that after an LEU failure, maintenance personnel need to manually replace the backup LEU, resulting in a long operation time.
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Citation Information
Patent Citations
N+1 redundant hot standby method for ground electronic unit of railway train control system
CN116424398A
Ground electronic unit equipment
CN212500433U