1机车运行监控记录装置的发展我局自1985年起采用速度监控技术防止列车冒进信号和超速，引起全路重视，路内外很多单位相继开发研制了一些列车速度监控设备。有主电路采用逻辑电路的，也有采用计算机技术的；控制方法有点一连式，也有连续式（线路参数内存储）；速度控制模式有 A locomotive running monitoring recording device development Bureau since 1985, the use of speed monitoring technology to prevent train signals and speeding spurs, causing full attention, many units inside and outside the road have developed a number of train speed monitoring equipment. The main circuit using logic circuits, but also the use of computer technology; control method is a bit continuous, but also continuous (line parameters stored); speed control mode