Design of fire alarm system with automatic position

Among all kinds of disasters, fire is one of the most frequent and common disasters that threaten public security and social development. At present, the sensitivity of fire detector is not high, and it is difficult to evacuate and rescue the trapped people. In this paper, a fire alarm system with automatic positioning function is designed. The system adopts ZigBee technology and relies on the mobile node worn by personnel, the detector which integrates various fire signal data is used as the terminal node, ZigBee router and coordinator self-organized network are used to monitor the fire situation and personnel position in the building. Realize accurate positioning of personnel and timely warning of fire.