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一、概述随着铁路提速、重载运输的发展,对机车信号提出了更高的要求。需要机车信号能提供更多、更准确的信息给机车控制系统以确保列车的运行安全。模拟信号处理由于受到本身的局限性难以满足需要,因而具有超大规模集成电路器件的数字信号处理技术应运而生。通用型机车信号不仅满足了多信息的功能,而且还能满足我国种类繁多的自动闭塞制式。它能从强干扰中可靠地自动接收国产移频18信息和4信息、UM-71信息和交流计数25Hz、50Hz、75Hz信息。通用型机车信号除具有复示地面信号显示功能外,还给监控设备提供速度等级、绝缘节、制式等信息,对列车运行起到了可靠的监督保障作用,因
First, an overview With the railway speed, heavy transport development, the locomotive signal made a higher request. Need locomotive signal can provide more and more accurate information to the locomotive control system to ensure the safe operation of the train. Due to the limitation of analog signal processing, it is difficult to meet the need, so the digital signal processing technology with VLSI device has emerged. Universal locomotive signals not only meet the multi-information functions, but also to meet our wide range of automatic blocking system. It can reliably and automatically receive domestic frequency shift 18 information and 4 information, UM-71 information and exchange count 25Hz, 50Hz, 75Hz information from strong interference. General locomotive signals in addition to complex ground signal display function, but also to the monitoring equipment to provide speed grade, insulation section, standard and other information on the train operation played a reliable supervision and protection role, because