目前,铁路线路作业通信联系多数沿用七、八十年代的产品(有线单工对讲电话),功能单一,均无法实现远程指挥故障处理、设备抢修,无信号开放、列车接近预报功能,不利于行车及劳动安全的控制。随着列车速度、密度的不断提高,新技术、新设备的不断投入使用,现场急需故障处理远程指挥 At present, most of railway line homework communications are based on the products of the 1970s and 1980s (wired simplex intercom) and have single function. None of them can handle remote command troubleshooting, equipment repair, no signal open, and the train is close to the forecast function, which is not good for Driving and labor safety control. With the continuous increase of train speed and density, new technologies and new equipment are continuously put into use, and on-site urgent troubleshooting is required