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1994年5月9～11日在合肥市召开了第七届铁路通信信号科技动态报告会。与会代表来自56个单位共120人。 会议的中心主题为“安全技术”,包括列车超速防护、现代通信、轴温检测、道口防护、电源等安全技术和设备。会议听取了国外铁路列车超速防护系统、新的列车运行控制系统CARAT、1987年的车站微机联锁设备发展的应用、高速铁路通信信号系统、最新的B—ISDN通信系统、SDH同步数字传输系统、先进的智能网AIN系统、AI秘书系统、MLM型数字线
May 1994 9 to 11 held in Hefei, the Seventh Railway communication signal technology dynamic report. Participants from a total of 56 units a total of 120 people. The central theme of the conference is “Safety Technology”, which includes safety technologies and equipment such as train speeding protection, modern communications, axle temperature detection, crossing protection and power supply. Meeting listened to the foreign railway train speeding protection system, the new train operation control system CARAT, 1987 station microcomputer interlocking equipment development applications, high-speed railway communication signal system, the latest B-ISDN communication system, SDH synchronous digital transmission system, Advanced Intelligent Network AIN system, AI secretarial system, MLM digital line