The Research And Development Of Safety Computer In Communications Based Train Control

The result message of safety computer system in CBTC is very important to the safe running of train, so the security and reliability of the system is vital. In the thesis, a 2 out of 2 multiplying safety computer system with new structure is designed. The system security, reliability, availability and the system realization methods are studied deeply, and the sketch of hardware and software is given in detail. The software realization methods of 2 out of 2 technology are rought forward. And communication mode among all the modules is discussed,and its realization methods are given. At the last of this paper, we have analysed the system by diynamic fault tree analysis and get the faut probability of the system. The thesis is a deveopment of safety computer in railway signal equipment and has profound value of praxis. It also supplies a theory base of the safety and reliability in the 2 out of 2 multiplying safety computer system.