一、铁路通信在铁路现代化中的地位归纳起来是一句话:“铁路要现代化,必须首先通信现代化”。因为铁路现代化需解决四个运输关键问题;安全、正点、迅速和经济。这就必须有现代化的信号、通信和计算机,其中通信是基础,通过它实现一个铁路运营管理的综合自动化整体。如目前日本国铁实 First, the status of railway communications in the modernization of the railway is summed up in one sentence: “To modernize the railway, communications must first be modernized.” Because the railway modernization needs to solve four key transport problems; safety, punctuality, speediness and economy. This necessitates the modernization of signals, communications and computers, of which communication is the basis through which an integrated and integrated automation of railway operations and management can be achieved. As the current Japanese iron real