Research of Routing Protocol for Support Pressure Monitor in Mine Base on WSN

According to the advantages and disadvantages of LEACH and PEGASIS, we propose a LEACH-P protocol which cluster head is a improved and connected into a chain protocol. This protocol first choose cluster head in the wireless sensor networks and make all nodes into clusters. Then it top-down traversals cluster head and finds a link connection which optimizes cluster head election and inter-cluster communication. It is more adapted to the pressure monitoring system of downhole hydraulic support. NS2 simulation show that the improved protocol can extend the network life cycle and have a good real-time.