一种新型列尾设备的硬件开发方案探讨

Development of New Type Train Tail Device’s Hardware

既有列尾设备是通过检测列车风管尾部风压来提醒司机判定列车的完整性,其应用存在局限性,为此提出一种新型列尾设备。在列车风管尾部风压采集的基础上,增加基于北斗卫星的位置和速度信息的实时采集,并将采集到的信息周期性上报给ATP车载设备,配合ATP车载设备完成列车完整性检查。其中风压采集和与ATP车载设备数据交互能够满足SIL4级的设计要求,保证了新型列尾设备的可靠性和可用性,提高了数据传输的安全性。

The existing train tail device is designed to detect the wind pressure at the rear of the train pipe to remind the driver of judging the integrity of the train and its application has some limitations.So,a new type train tail device is proposed.On the basis of dada acquisition of wind pressure at the rear of the train pipe,real-time data collection of the train’s position and speed by Beidou satellite is made and the collected data is reported to the ATP’s on-board equipment periodically for train integrity check.Data acquisition of wind pressure and data interaction with the ATP’s on-board equipment can meet the design requirements of SIL4,thus ensuring the reliability and availability of the new type train tail device and improving the security of data transmission.