Aiming at the fire safety requirements of special places such as inflammable and explosive areas, large-scale public buildings, forests, underground facilities and other special places, based on the application of red ultraviolet photoelectric technology and digital image processing technology, the research on early fire early warning and fire extinguishing system control technology is carried out, focusing on the research and product development of flame, combustible and toxic gas and smoke detection technology. The project has conquered and mastered the new fire detection technology which takes into account sensitivity and reliability, and has developed a number of medium and high speed response flame and gas detection devices and large space automatic tracking jet fire extinguishing system. The large space automatic tracking jet fire extinguishing system can detect and locate the ignition point independently and realize automatic fire extinguishing.