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Temporary speed limit method and system

A temporary speed limit and subsystem technology, applied in the field of rail transit, can solve the problems of large link complexity and easy failure, and achieve the effect of improving safety and reducing complexity

Active Publication Date: 2022-07-19
TRAFFIC CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the interaction between TMC and OC and IVOC in the above scheme, there are technical problems of high link complexity and prone to failure

Method used

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  • Temporary speed limit method and system

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Experimental program
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Embodiment Construction

[0044] In the process of realizing the present application, the inventor found that the existing temporary rate limiting method has technical problems of large link complexity and easy failure due to the interaction between TMC, OC and IVOC.

[0045] In view of the above problems, the embodiments of the present application provide a temporary speed limit method and system, which utilizes TMC to judge the legality of the temporary speed limit information in the temporary speed limit setting command. When the temporary speed limit information is legal, the temporary speed limit information is sent to the OC. Temporary speed limit for vehicles through OC control IVOC. Since TMC no longer interacts directly with IVOC, it interacts with IVOC through OC, which reduces the complexity of the link and the failure rate of the temporary speed-limiting system, and improves the safety of the temporary speed-limiting system.

[0046] The solutions in the embodiments of the present applicat...

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Abstract

Embodiments of the present application provide a temporary speed limiting method and system, wherein the TMC interacts with the ITS and the OC. The TMC receives the temporary speed limit setting command sent by the ITS, and the temporary speed limit setting command includes the temporary speed limit information. The TMC judges the legality of the temporary speed limit information, and obtains a first judgment result. When the first judgment result indicates that the temporary speed limit information is legal, the TMC sends the temporary speed limit information to the OC, so that the OC controls the IVOC to temporarily limit the vehicle's speed based on the temporary speed limit information. With the solution in this application, since the TMC no longer interacts directly with the IVOC, it interacts with the IVOC through the OC, and the OC directly controls the IVOC, thus reducing the complexity of the link and the failure rate of the temporary speed limit system, and increasing the temporary limit. The safety of the fast system operation.

Description

technical field [0001] The present application relates to rail transit technology, in particular, to a temporary speed limit method and system. Background technique [0002] The temporary speed limit system of the Communication Based Train Control System (CBTC) includes: a Data Storage Unit (DSU), which stores and manages the temporary speed limit, and communicates with external devices to limit the speed. Speed ​​information exchange; Automatic Train Supervision (ATS) connected with DSU, which sets / cancels temporary speed limit for designated areas by manually setting speed limit information parameters; multiple zone controllers connected with DSU (Zone Controller, ZC), which obtains the temporary speed limit information issued by the DSU, and sends out a dynamic speed limit command; the automatic train protection system (Automatic Train Protection, ATP) connected with the ZC, which receives the dynamic speed limit command issued by the ZC, and according to The dynamic spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L27/20
CPCB61L27/20
Inventor 奚佳毅
Owner TRAFFIC CONTROL TECH CO LTD