【摘要】 讨论“列车超速防护系统”中列车运行记录子系统的总体设计、系统结构、数据压缩方法、两个新颖电路试验结果等内容，反映子系统从设计、实现到最后试验定型过程中的新特点，体现了系统的先进性和可靠性。更多还原

【Abstract】 Recording system is a sub-system of Train Traffic Overspeed protection system.In this paper, many contents such as the overall layout of the system, the system structrue,the method of data compression, two new circuits and experiment result are discussed. The new features of the system, its advancement and reliability are exposed.更多还原