Research On CPN Modeling Of High Speed Maglev's Switch

ABSTRACT:The Maglev is an efficient land transport vehicle which running at a speed up to400-500km/h. Safe and reliable train operation control system should be adopt to ensure train safety, efficient operation. The switch function of high speed Maglev is an critical function of Maglev train operation control system and the efficiency of high speed Maglev's operation and safety has largely depends on the efficiency of switch. As there's hardly any research about the Maglev's switch function, so it's important to model the switch function of Maglev and analyze the key factors which determine the efficiency of it.Firstly, the structure and operation principle of high speed Maglev's train operation control system which mainly includes the discrete operation control system, vehicle on board operation control system was introduced. Then, the process and function of Maglev's switch was designed, of which include the DSC function module, safety velocity compute module,stop point step in module etc, Also, the principle of petri net and the CPN model method and the using of CPN in the rail transportation control system area were introduced.In the base of above research, the CPN model of high speed Maglev's switch function's,38GHZ's radio communication channel, Max velocity curve, the session between train and DCS, step in function were modeled. Finally, the verification method of high speed Maglev switch function's CPN model of was introduced, then the key factors which determine the efficiency of maglev's switch function were researched, include the failure of38GHZ radio communication channel, DSC transfer efficiency, and train speed.Also, the distribution of high speed Maglev's switch timed consuming was researched.