Study On Transportation Path Optimization And Environmental Monitoring System Of Underground Electric Locomotive In Coal Mine

There are many and miscellaneous auxiliary transportation tasks in the underground coal mine.As the main means of auxiliary transportation,electric locomotive plays an important role in the transportation process.For most coal mines,there is a lack of reasonable planning of the transportation path in the transportation process of underground electric locomotives.Under the existing manual dispatching mode,the transportation path of electric locomotives is disorderly and the transportation efficiency is not high.Moreover,the cable monitoring range of the environmental monitoring system for electric locomotive transportation roadway is small,the cost of communication wiring and maintenance is high,and the scalability and flexibility are poor.In some areas,the cable cannot be laid,and the signal blind area is easy to occur.Therefore,in view of the above problems,this paper studies the intelligent transformation of the target mine.The first is to optimize the existing electric locomotive transportation path.The second is to optimize the communication environment of the electric locomotive transportation roadway,and change the wired communication to wireless communication to provide support for intelligent transformation.The main contents of this paper are as follows:1)The path optimization of underground electric locomotive transportation section in the target mine auxiliary transportation system is studied.The electric locomotive transportation scheduling problem is proposed,and the underground electric locomotive transportation scheduling model is constructed on the basis of the classical transportation scheduling model.The ant colony algorithm is used to solve the optimization problem of electric locomotive transportation scheduling path and the solving process and steps are given.Using Py Charm simulation,the optimal path of the underground electric locomotive transportation task in the demonstration mining area is 49 % shorter than the original path.The influence of important parameters of ant colony algorithm on the shortest path of electric locomotive transportation is analyzed,and the optimal range of parameters in this case is obtained.2)Locomotive transport roadway environmental monitoring system design.Analyze the requirements of the environmental monitoring system of the underground electric locomotive transportation roadway,and design the system architecture and the functions that the system needs to implement.Through comparative analysis of broadband and narrowband wireless communication technology,comprehensive advantages and disadvantages of wireless narrowband communication technology is suitable for underground electric locomotive transport roadway environmental monitoring.By comparing three kinds of wireless narrowband communication technology,comprehensive advantages and disadvantages of ZigBee is more suitable for underground electric locomotive transport roadway environment monitoring.According to the performance characteristics of ZigBee technology,the feasibility of monitoring system in underground environment is analyzed.3)Research on ZigBee network performance simulation.Based on ZigBee technology,the ZigBee communication architecture in coal mine is constructed.The link interference between wireless sensors is introduced and classified from the communication architecture,and the wireless signal propagation loss model is introduced.Using wireless communication simulation software,three different network topologies are simulated and analyzed.The results show that under the same parameter conditions,the tree network topology has moderate performance parameters and is more suitable for ZigBee communication architecture in coal mine.The interference generated by mobile nodes is simulated and analyzed by wireless communication simulation software.The results show that adding mobile nodes has a great influence on the performance parameters of the entire ZigBee network and the performance parameters of each subnet.Changing the speed of mobile nodes has little effect on network performance.Increasing the number of mobile nodes increases the performance of the whole network.The movement of mobile nodes on curved paths degrades the performance of the entire network.4)The monitoring system hardware and software design.In the aspect of hardware,microprocessor module,sensor module,ZigBee wireless communication module and power module are designed respectively.Two different interfaces of ZigBee to Ethernet and ZigBee to RS-232 / 485 / 422 are designed.The software uses C language programming to design ZigBee coordinator node,routing node and terminal node program.Finally,the monitoring system test test,from point to point communication test,tree network topology networking and PC software design and environmental monitoring test,respectively,to verify the feasibility of the monitoring system.In this paper,through the combination of theoretical analysis,simulation research and test test,the shortest path of electric locomotive transportation task is studied,and the optimal value range of ant colony algorithm parameters is obtained.The ZigBee technology is used to design the environmental monitoring system of underground electric locomotive transportation roadway through simulation and test,which provides a practical reference for the auxiliary transportation of electric locomotive in coal mine.Figure [61] Table [14] Reference [83]...