Community Intrusion Detection and Pre-warning System Based on Wireless Mesh Network

A community intrusion detection and pre-warning system based on wireless mesh network is presented in this paper. This system is composed of ARM (advanced RISC Machines) data acquisition nodes, wireless mesh network and control centre. The flame, smog and infrared signal of human can be detected by ARM nodes, and video and audio signal is collected and transmitted to control centre by wireless mesh network when any of those situation happened. The control centre stores information to special area and gives alarm signal to monitors. The ARM data acquisition nodes use embedded system use its centre control unit and transmit signal by wireless transmission module which can connected to ARM9 and send video and audio signal. The system can establish network automatically by using the advantage of multi-hop communication of mesh network. Redundancy node can be placed on important area to make sure reliability and resist destroy.