The design and implementation of wireless sensor network monitoring and control system based on modbus/tcp

This paper introduce the design of monitoring and control system for wireless sensor network based on Modbus/Tcp and its implementation on Visual Studio 2005 platform. It communicates with gateway device and stores the data in MySql database. It also provides important work parameters history curve query function for wireless nodes and gateway which can be a reference for adjusting wireless sensor nodes work state. Manually configuring IP for Modbus server will waste a lot of time. On the other side, the network may disconnect unexpectedly in the industrial field. As a solution, this paper put forward a proposal of recovering from this kind of network fault automatically. Additionally, this paper builds a fuzzy control framework for node transmitting power based on LQI and RSSI.