Abstract: At present,the artificial settings of scheduling strategy are commonly based on historical experience and work manners,which lack of adaptability and flexibility to production transportation situation.Considering this,the article selected the colored Petri nets,which is adapted to the typical discrete event dynamic system.After fully researching the basic underground dispatching interlocking rules,the article defined color sets,places and transitions which are suitable for the system.The theoretical model in the complete working path was considered and divided into six conditions in sequence.Finally,it is concluded that the complete interlocking system dispatching model is obtained.

Key words: Transportation dispatching,Discrete event,Dispatching interlocking,Colored Petri net