基于CAN总线的道岔表示电压采集器设计

Design of Railway Switch Indication Voltage Collector Based on CAN Bus

针对传统铁路道岔表示电压检测方案存在的不足,设计了一款基于CAN总线的道岔表示电压采集器。基于ARM微处理器技术,根据道岔表示电压信号的采集与计算,给出了系统的硬件设计、软件设计及系统实现方案,并在-25~70℃范围内进行实验验证和讨论。结果表明：该采集器具有精度高、体积小、易于安装和功耗低等特点,能满足铁路现场监测应用需求,具有一定的实际应用价值和推广意义。

Aimed at the deficiency exists in traditional measurement of railway switch indication voltage, design railway switch indication voltage collector based on CAN bus. Based on ARM microprocessor technology, according to the collection and calculation of railway switch indication voltage signal, explicated the design of hardware and software, and the implementation of the system, and experimented and discussed in range of -25～70 ℃. The results show that the collector has the features of high accuracy, small size, easy installation and low power consumption, and can meet the needs of railway field monitoring applications, and has certain actual application value and popularization significance.