The invention discloses a train low-speed axle counting detection system and detection method, and relates to the technical field of rail transit signals. The detection system comprises an axle counting sensor and axle counting equipment connected with the axle counting sensor, the axle counting equipment comprises a signal amplification module used for obtaining wheel signals collected by the axle counting sensor, amplifying the wheel signals, and obtaining an amplified signal, a shaping module used for overturning the negative half cycle of the amplified signal and recombining the positive half cycle of the amplified signal with the overturned negative half cycle to obtain a shaped signal, a level conversion module used for carrying out level conversion on the shaping signal to obtain two square wave signals, and a processing module used for judging that the wheel signal is valid when the width difference of the two square wave signals is within a preset range, and outputting one ofthe square wave signals to the control equipment. According to the application, the interference signals collected by the axle counting sensor can be effectively removed, the precision and reliabilityare high, and the on-site safety production operation of the train can be further ensured.
本申请公开了一种列车低速计轴检测系统及检测方法,涉及轨道交通信号技术领域,该检测系统包括计轴传感器、以及与计轴传感器连接的计轴设备,计轴设备包括:信号放大模块,其用于获取计轴传感器采集的车轮信号并进行放大,得到放大信号;整形模块,其用于将放大信号的负半周期进行翻转,并将放大信号的正半周期与翻转后的负半周期重新组合,得到整形信号;电平转换模块,其用于将整形信号进行电平转换,得到两个方波信号;处理模块,其用于当两个方波信号的宽度差在预设范围内时,判定车轮信号有效,并输出其中一个方波信号至控制设备。本申请,可有效去除计轴传感器采集的干扰信号,具有较高的精度和可靠性,进而可保证列车现场安全生产作业。
Train low-speed axle counting detection system and method
一种列车低速计轴检测系统及检测方法
2021-01-22
Patent
Electronic Resource
Chinese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
European Patent Office | 2020
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