Performance evaluation of railway computer interlocking system based on queuing theory

Microcomputer system is a large scale computer controlling system with the high demanding of real-time performance. We present two models based on the theory of random service to analyze the real-time performance of computer interlocking system. From analysis and comparison of the two models, we proposed the method to evaluate the real-time performance of computer interlocking system and a better dispatch principle to design the software. The models were tested in forms software and got the satisfied result in practice.