The control and diagnosis networks in Maglev Train are the most important parts. In the paper, the control and diagnosis network structures are discussed, and the disadvantages of them are described and analyzed. In virtue of role automation decentralized system (RoADS), some basic ideas of RoADS are applied in new network. The structure, component parts and application of new network are proposed, designed and discussed in detail. The comparison results show that new network not only embodies some RoADS' ideas but also better meets the demands of control and diagnosis networks in Maglev Train.

The diagnosis system of Maglev Train is one of most important parts, which can obtain kinds of status messages of electric and electronic devices in vehicle to ensure the whole train safety. In this paper, diagnosis system structure and diagnosis method are analyzed and discussed in detail. The disadvantages of diagnosis system are described. In virtue of the theory of ADS, some basic ideas of ADS are applied in new diagnosis system. The structure, component parts and diagnosis method of new diagnosis system are proposed, designed and discussed in detail. The analysis results show that new diagnosis not only embodies some ADS' ideas but also better meets the demands of Maglev Train Diagnosis System.