Autonomous Community Cooperation Technology for Real-Time Transmission of Emergency Information

Wireless Sensor Network(WSN) is widely used in Emergency Management System(EMS) to assure safety in current society. When emergency happens, real-time transmission of emergency information at dynamical changing environment should be achieved. But it can not be satisfied by conventional approaches which are based on static situations and centralized management. Therefore, to solve this problem, community has been proposed. Community, is a group of wireless routers for transmitting emergency information. Emergency information´s transmission will be protected via community from interferences of information transmission outside community. Real-time property could be assured. However, if multiple emergencies appear at same time, by only community construction approach, each community will cover more area. Transmission of emergency information will use longer route. Real-time property could be influenced. Via proposed technology, each router could cooperate with each other to adjust main route construction. Thus, emergency could select appropriate main route. The evaluation results indicate the improvement of real-time property and disturbance to normal information by proposed technology.