基于petri网的多级管理并发信息流模型与死锁分析

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

在多级信息管理系统中,如ERP管理软件,往往存在多维并发信息流,由此引发因争夺资源而产生的系统死锁,这将严重影响系统效能.本文基于petri网建立了系统的数学模型,进而分析在并发信息流中产生死锁的关节所在,为从理论上研究系统的效能,例如,发现和排解死锁等,提供了可靠根据,有效地保证了系统的正常运行.

Usually, there is multidimensional concurrent information flow in the multilevel information management system, 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 mathematical model of the system on base of petri net was set up, then the key cause of deadlock in concurrent information flow was analysed, and the reliable basis for the study of effect of the command system in theory was provided, for example, how to find and mediate deadlock, therefore ensure the normal running of he system. The experiment analysis proves that it has important value for improving the efficiency of system.