自动控制文献翻译——摘要：本文以铁路交通的发展历史和科学技术分类开始，介绍日本铁路控制技术，分别从电子技术，计算机技术和通信技术方面分析这项技术的特征。最后阐述这些技术在铁路控制系统中未来的发展方向。

关键字：交通控制；铁路；信号系统

1概述

在早期的铁路中没有信号系统。车站值班人员通过手势来指挥列车的通过或停车。但是人往往会发生错误而引起事故。

信号系统可以有效地防止事故的发生。在日本早期的的信号系统是列车自动停车装置。这种装置可以在收到停车信号后自动使列车制动。即使司机不理会设备的停车信号，这种位于轨道上的装置也可以自动的使列车制动。

列车自动防护被用于提高运输效率。使用应答器发送可以接受的数据报文，列车自动防护系统通过轨道传输距离下一个停车点的距离信息给列车，然后该系统通过这些信息生成列车速度检测码。

列车自动控制系统用于解决列车自动防护系统中的问题,在列车自动控制系统中，当司机做出错误操作时，安全操作程序将会被激活来实现列车的安全性能。

为了应对现代的,高效的运输需求,新的控制系统出现了，如列车管理与通信系统，基于通信的列车控制系统等等具有新的模式和附加的功能的系统。

本文将以铁路信号系统的发展为背景研究日本最新的列车控制系统，然后阐述它的......

Abstract: This paper begins with the developing history and technical classification of railway transportation, introduces the railway control system used in Japan, analyzes its technology features respectively from the aspects of electronic, computer and communication technology, and at last proposes the technical developing direction of future train control system.

Key words: traffic control，Railway，Signal System

1 Introduction

In the early days of railways, there was no signaling system. A station attendant showed the signal of go or stop by gestures. But people would make some mistakes which caused accidents.

Signaling system prevents the accidents efficiently. Early signal system in Japan was Automatic Traffic Stop (ATS) devices. This device could automatically stop the train when it received the stop signal. Even if the driver ignored the alarm of the train-borne stop device, the device on the track could stop the train automatically.

ATS-P (Automatic Train Stop Protection) was developed to raise efficiency. Using the responder to send a receive data signal, ATS-P system transmits information of the distance about the next stop to the train via the track, and then the system generates a train speed-checking pattern with these information.

ATC (Automatic Train Control) system is developed to resolve problems of ATS-P. In ATC system, safety operation procedure will be activated to guarantee the safe performance of the train when the train operator made mistakes. 

To meet the needs of the modern massive high-efficient transportation, new traffic control systems are emerging such as ATACS (Advanced Train Administration Communication System), CBTC (Communication Based Train Control), etc. With the integration of railway signal and communication technology.......