Research And Implementation Of Shijiazhuang Metro Wireless Communication Dispatching System Based On TETRA

This paper is based on the land cluster wireless systems (TETRA) of the zhuangwireless communication of scheduling system research and implementation. SystemUSES CASSIDIAN (European space agency) advanced TETRA technology, based onEADSTETRA Tes system (TETRAeonnectivityserver) interface platform.This paper in domestic and abroad subway wireless communication schedulingsystem based on the analysis of the relevant information, according to the specificconditions of shijiazhuang metro design and implement shijiazhuang subway wirelesscommunication scheduling system. This paper first studied the topology of thenetwork, compares the advantages and disadvantages of various structure, the paperproposes the ring from the network structure of the scheme, to ensure safety andstability of the transmission; Second in order to improve the reliability of the system,the system adopts core network elements of redundancy backup technology and safetyof dispatching plan; In addition, switch technology strikes area research, design theshijiazhuang wireless communication scheduling system the handoff type andparameters; The last of the system analysis and design and give a specificimplementation, through the simulation validation test the rationality of the design ofthe system.CASSIDIAN for third party development application provides TETRAenvironment verification testing to end users have brought many benefits. Owing tothe actual project before installation test each subsystem and TETRA business ofintegration, will greatly shorten the project execution time, and at the same time,improve the quality of the whole system.