Temporary Train Speed ​​Limit Method Based on Ad Hoc Network

Abstract

The invention discloses a temporary train speed limit method based on an ad hoc network. The method is as follows: the railway is divided into multiple sections, and a plurality of wireless nodes and a data gathering point are laid in each section, and the train operation control center Designate relevant nodes as speed-limiting nodes through data aggregation points. When the train passes the target section, the train response device sends out a train arrival signal, and all normal working nodes in the target section will receive this signal. When the train passes the location of each node, the train response device collects the speed limit information sent by the speed limit node and transmits this information to the train master control device to control the running speed of the train. Compared with the prior art, the present invention utilizes the self-organizing network method to realize the rapid issuance of speed limit commands, accurately configure the speed limit information, reduce the workload of manual inspection, and report road condition information to the control center accurately and in time. Improve train safety.

Description

technical field [0001] The invention relates to the field of railway train operation safety, in particular to a temporary train speed limiting method based on an ad hoc network. Background technique [0002] In order to ensure the safety of train operation, speed limit operation is often required during train running. At present, my country's railway management department has two ways to limit the speed of trains: inherent speed limit and temporary speed limit. For the inherent speed limit of the road section, the speed limit can be realized by pre-setting the vehicle-mounted operation monitoring device (LKJ device), which reduces the influence of human factors and improves driving safety; when an emergency or temporary construction along the railway line requires temporary When the speed is limited, the driving information of the on-board LKJ device cannot be updated in time, and the method of informing the driver of the speed limit by placing a temporary speed limit sign ...

AI Technical Summary

Problems solved by technology

[0004] Yet the above-mentioned two kinds of technical schemes of temporary speed limit also have the following deficiencies: 1. During temporary speed limit, temporary speed limit device or radio frequency card need to be artificially laid along the railway line, and this mode is relatively slow for the response of sudden accident, has The problem that the temporary speed limit device or radio frequency card cannot be arranged in time causes the speed limit information to be read in time, thus endangering driving safety; 2. After the temporary speed limit device or radio frequency card is laid, it is necessary to check its working condition frequently to prevent temporary The speed limit device or radio frequency card is damaged or stolen, which increases the workload of manual inspection, and may fail to find that the temporary speed limit device or radio frequency card is damaged or lost due to personnel negligence, so that the speed limit information is generated during the temporary speed limit Read failure, prone to safety accidents;

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