The concurrent information flow model and deadlock analysis based on Petri net for multilevel management

Usually, there is multidimensional concurrent information flow in the multilevel information management system (MIIVIS), such as ERP management software, this causes the fighting for resource and brings about the deadlock, this will affect the effect of system seriously. The paper sets up mathematical model of the system on base of petri net, then analyses the key cause of deadlock in concurrent information flow, and provides the reliable basis for the study of effect of the command system in theory, for example, finding and mediating deadlock, therefore ensures the normal running of the system. The experiment analysis proves that it has important value for improving the efficiency of system.