货车热切是严重影响铁路运输安全的问题。为了防止热切事故的发生,全路开发并推广应用了红外线轴温定点检测系统。但是,热切问题尚未得到有效的监测和控制。为此,本文从宏观分析出发,研究了轴温从正常运转热到热轴的全过程;分析了红外线定点检测系统可靠性低的原因;在此基础上,提出了高可靠性的随机跟踪方案设想。 Eager truck is a serious problem affecting the safety of railway transport. In order to prevent the occurrence of eager accident, all the way to develop and promote the use of the infrared axis temperature fixed-point detection system. However, the eager questions have not yet been effectively monitored and controlled. Therefore, based on the macroscopical analysis, this paper studies the whole process of the shaft temperature from normal operation to the hot shaft, analyzes the reason of the low reliability of the infrared fixed-point detection system, and on the basis, proposes a highly reliable random tracking scheme Imagine.