In view of the increased fire hazards, the fires in the places of high-rise buildings and crowded have caused work burdens on firefighters due to various factors, resulting in failure to rescue in time in recent years, this paper studies the four-rotor fire-extinguishing system for fire-fighting air-ground synchronous monitoring. The system is divided into two parts: the air-ground communication positioning navigation system based on STM32 core processor and the fire detection and fire-extinguishing system based on STC89C51 core processor, the two parts realize the functions of four-rotor obstacle avoidance navigation, information positioning, ZigBee wireless communication, fire detection, and fire extinguishing device startup. The design of this system makes the fire hazard greatly reduced, achieves real-time communication and positioning navigation more smooth, it's applicable to urban community high-rise building security, large-scale shopping mall fire, forest orchard fire and other natural disaster fire facilities.
