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在铁路交叉处,以及铁路和公路的平交道口,常常由于调度失灵或管理不善而造成火车与火车,或者火车与汽车相撞的不幸事故。最近,苏联莫斯科运输工具研究所研制成功了一种可避免火车相撞的仪器,在交叉道口使用这种仪器可以使列车从远处获得信号,发觉交叉道口的障碍,从而及早采取措施,避免事故。这种仪器结构简单,大小为8×12cm,可随身携带。在仪器中包括:特高频发射器、两组接收器和信号处理机以及喇叭形发射天线。工作
At railway intersections, as well as at railroad and road crossings, trains and trains, or unfortunate trains and car collisions, often result from mismanagement or mismanagement. Recently, a tool developed to avoid the collision of trains was successfully developed by the Moscow Transport Research Institute of the Soviet Union. Using such instruments at intersections allows the trains to obtain signals from afar and detect barriers at intersections to take early measures to avoid accidents . This instrument has a simple structure, the size of 8 × 12cm, portable. Included in the instrument are: UHF transmitters, two sets of receivers and signal processors, and a horn-shaped transmit antenna. jobs