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Critical infrastructure railway signaling system is to ensure the safe operation of trains , improve transport efficiency and improve the working conditions of railway employees , their level of development has become an important symbol of the modernization of railways . With the development of China's railway transportation industry and modern electronic technology and computer technology to the development of the use of the railway signal is the direction of the intelligence and network development , from the original relay interlocking , has been widely applied to the current computer-based interlocking , and microcomputer monitoring , TDCS system , railway signaling is undergoing unprecedented change , and as an important foundation of the railway signal system equipment - signal , still uses the original relay interlocking control lighting . This paper presents a new way of thinking and programs , the use of computer technology and modern communication technology , the signal to form a network in the field can do the venue of the signal of the station network intelligent control through intelligent design of the signal system has a simple structure , easy to maintain , and be able to locate the fault alarm , self-diagnosis and the health of analysis , thereby enhancing the security of the system , maintainability and reliability , shorten the fault delay , while significantly reducing the amount of signal construction , saving cable investment . This paper analyzes the current situation and problems of China 's railway signal system , on this basis, a new the intelligent signal the ideas and methods , and then add up based on the idea of ??the overall composition of the system , and detailed introduction system design thinking principle , and the detailed design of each part of the program, including functional requirements and solutions , and key parts and technology made ??a detailed analysis and presentation , and finally the formation of a complete construction design and specification . Finally, a comparative analysis of the systems and technology .
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