Research of Coal Mine Safety-Production Dispatching Based on Multilayer Petri Net

Safety-production dispatching is a core of coal mine system. Traditional dispatching of coal mine is very rough and lack of theory guidance. Firstly, the paper studied the basic theory of Petri net and the principle of multilayer dispatching. According to the characteristic of coal mine safety-production, the paper gave the coal mine production dispatching model based on multilayer Petri net. In the paper, the production dispatching model had been divided into three parts of system layer, subsystem layer and information layer. Given the function and characteristic of each layer, different kinds of Petri net (such as time Petri nets, fuzzy Petri nets) were used to build the model in the paper. Based on the actual coal mine production, the paper used the model to analyze practical problems. The results have verified that the method could be used to coal mine safety-production dispatching effectively.