Research On Mine Personnel Location System Based On Wireless Sensor Networks

On one hand mine safety monitoring system can ensure distribution of underground materials in order.On the other hand,it also has played an important role on the safe production in the pit.In order to solve the problem of poor positioning accuracy and low communication reliability in the current undermine positioning system,the wireless sensor network is established by using the mature wireless sensor network technology to monitor the underground working environment and realize the early warning and the underground emergency.It is of great significance to personnel security.As an integral part of the underground safety monitoring system,the underground positioning system can realize real-time positioning and tracking of the location of underground workers.The main research on this thesis is as follows:1 This thesis has analyzed the characteristics of the underground positioning system,and the reference of transmission loss based on wireless sensor is established,which provides the basis for the design of positioning algorithm in the pit.2 The localization algorithm in the pit based on wireless sensor network has been studied.This thesis has used wireless sensor network to gain the location information,and the centric localization algorithm based on Kalman filter is designed to monitor real-time positioning and tracking of the location of workers in the pit.The simulation results show that the algorithm has high positioning accuracy and strong anti-interference ability to the complex environment.3 A transmission control algorithm is proposed to improve the reliability of system communication.This part is aiming at the problem of low reliability of communication which is caused by a large amount of data in positioning system.A transmission control algorithm based on RBFNN is designed to control the length of the buffer queue.The algorithm can effectively control the length of the buffer queue during the route transmission,and the data loss during data transmission is reduced.The simulation shows that the algorithm can well control on the routing queue and have a strong anti-interference ability.