Research on standardization of vehicle terminals communication protocols in intelligent public traffic system

It is necessary to develop the relevant communication protocol standards to support the construction of intelligent public traffic system. This article first analyzes the status of communication standardization of intelligent public traffic system. Further it introduces the constitution of communication protocol system of intelligent public traffic system. It proposes communication protocol layered model and the protocol constitution content of vehicle terminals in intelligent public traffic system. The design of protocol layered model reference the ISO/OSI model, and provides the special short-range communication standards of DSRC. In the premise of meeting the current application in the field of our intelligent public traffic and considering the future development, design and determines the important index and parameters of the standard. Further it proposes system integration content based on vehicle terminals standardization of communication protocol. The standardization of communication protocol proposed by the article was applied in practice in the relevant engineering and achieved good results.