The Research And Application Of Wireless Sensor Networks Technology On Mine Security Monitoring

Nowadays,in order to satisfy the need of more and more energy,the yield of mine has beening inceasing.However, the high yield led the mine security problem to be more serious.Monitoring the work circumstance in mine had to be paid more attention.With the development of the sensing technology, the wireless communication technology and the embedded board technology,the wireless sensor networks equipped with the low-energy consumed and complex function device can be used widely.And its advantages can totally satisfy the requirement of security monitoring in mine.This thesis specificly discussed the key technology of wireless sensor network, analysed the feature of mine circumstance,and research some technologies which are fit with the requirement of this particular surroundings and can be used in this security monitoring system.This thesis introduced the basic structure and feature of wireless sensor networks, and analysed its key technology that was suit to the particular area in mine.It also optimized the topology structure of wireless sensor network and deployment method on particular monitoring area in mine which can satisfy both the coverage and the communication of this network by least nodes.Besides, it proposed the topology control method with 'self-healing' based on 'virtual force',because some nodes in network might be out of energy or broken which can led the blind area in monitoring. All algorithms above-mentioned were simulated to prove its improvement by the softwore of Matlab.Finally,it designed the network based on ZigBee protocol,and some algorithms were achieved on the wireless sensor network which was built on CC2430 moduler board.