摘要
铁路信号计算机联锁系统是一个有着高可靠性、故障安全性和实时性要求的安全关键系统。本单位自行设计研制了一个满足这种高可靠性、故障安全性和实时性要求的容错计算机联锁系统SWJTUII。计算机联锁系统SWJTUII,硬件结构上,采用SIEMENS公司PLC作为主要控制部件,双机热备冗余结构,能实现无扰动的故障切换;联锁软件采用Petri网模型化,面向对象方法设计,Step7STL语言实现;通过仿真软件模拟列车运行来对系统进行仿真测试并取得良好效果。该系统已开发完成并投入应用。
The railway signaling computer-based interlocking system is a safety-critical system that requires high reliability, safety and real-time performance. We have designed and developed SWJTU-II, a fault-tolerant computer-based interlocking system that meets the requirements of high reliability, safety and real-time performance. The hardware of SWJTU-II adopts SIEMENS-produced PLC as the main control components, adopts the redundancy stand-by structure and can finish fault-switching without disturbance. The interlocking software of SWJTU-II is modeled by Petri nets, designed by the object-oriented method and coded by the Step 7 STL program language. The simulation software is used to simulate the train moving process and the system is proved good in operation. The SWJTV-II system has been put into wide application.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2005年第3期118-123,共6页
Journal of the China Railway Society
