| At present,modern mine auxiliary transport under shallow burial depth conditions in China is increasingly using trackless rubber wheeled vehicle systems.With the extension of underground mining areas and the expansion of working faces,the underground auxiliary transport network in coal mines has become more and more complex,and due to the simple functions of the traditional underground auxiliary transport scheduling system,it is difficult to meet the current production needs of coal mines.Therefore,it is important to study the scheduling strategy of underground auxiliary transport vehicles in coal mines to improve the efficiency and safety of underground vehicle transport.The thesis takes the underground auxiliary transport system of X coal mine as the research object.Through an in-depth analysis of the current situation of the underground auxiliary transport system of X coal mine,the scheduling process of underground auxiliary transport vehicles in coal mines is clarified and the scheduling strategy is determined;the underground roadway is divided into sections,the classical Petri net model of the scheduling strategy is established,and the resource occupation process of vehicles is described using graphical expressions to prove the This demonstrates the deadlock-free nature of the scheduling strategy.In order to better describe the operation of vehicles under this scheduling strategy,a hierarchical colour Petri net model of the X coal mine auxiliary transport vehicle scheduling system was established using CPN Tools,and a time cost factor was added to analyse the basic performance indicators of the scheduling system.The results show that vehicles can operate correctly and safely under this scheduling strategy,the scheduling system model has strong reusability,and the model can predict and analyse the amount of vehicle transport,the frequency of zone use and the degree of matching between the vehicle transport speed and the speed of transport task generation,providing a guarantee for the safe and efficient transport of vehicles in the underground,as well as providing a certain theoretical basis for the design,evaluation and improvement of underground transport routes It also provides a theoretical basis for the design,evaluation and improvement of underground transport routes.Finally,Anylogic simulation software was applied to establish a simulation model of the underground auxiliary transport vehicle dispatching system,and the basic functions of the dispatching system were realised.The operational efficiency and cost of underground vehicles before and after the application of the dispatching strategy were compared and analysed.The results show that the application of the scheduling strategy can reduce the time required for vehicles to complete transport tasks and reduce the number of vehicles used.In addition,by recalculating the number of vehicles equipped in X coal mine,the number of vehicles held can be reduced under the premise of ensuring normal work,achieving the objective of eliminating waste of resources. |
