(1) Disaster investigation. When a disaster occurs, drones can be used to investigate the disaster. First, we can conduct investigations flexibly regardless of the terrain and environment, especially in some urgent and dangerous disaster sites, when the investigation team can't conduct investigations, drones can conduct investigations quickly. Second, UAV reconnaissance can effectively improve the efficiency of investigation and identify the key factors of disasters and accidents in the first time, so that commanders can make correct decisions. Third, it can effectively avoid casualties, not only avoid people from entering toxic, flammable and explosive dangerous environment, but also comprehensively and carefully grasp the site situation. The fourth is to integrate the detection module for detection. For example, the combustible gas detector and toxic gas detector are integrated together to remotely detect the concentration of flammable, explosive and chemical accident sites, so as to obtain key information of dangerous parts.

(2) Monitoring and tracking. The role of drones is not limited to disaster investigation. The scene of all kinds of disasters and accidents faced by fire forces often changes rapidly. In the process of dealing with disasters and accidents, real-time monitoring and tracking by unmanned aerial vehicles can provide accurate changes in the disaster situation, which is convenient for headquarters at all levels to grasp the dynamic disaster situation in time, so as to make quick and accurate response measures and minimize losses.

(3) Auxiliary rescue. Using drones to integrate or flexibly carry key equipment can help rescue in many cases. First, voice and amplification modules are integrated to convey instructions. Using unmanned aerial vehicle (UAV) to call or convey instructions in the air can be more effective than calling or conveying instructions on the ground, especially suitable for the rescue of high-altitude and high-rise buildings, and effectively convey key instructions with UAV as the carrier. The second is to open up rescue channels for rescue. For example, in water and mountain rescue, the use environment and scope of the existing thrower have great limitations and poor accuracy. Using unmanned aerial vehicle (UAV) to assist in rope throwing or carrying key equipment (such as respirator and rescue rope) can create a new way for rescue and open up a life-saving channel, which is accurate and efficient. The third is to integrate communication equipment and use drones as communication relays. For example, in the environment where communication is blocked such as earthquakes and mountains, unmanned aerial vehicles are used to integrate signal transmission modules and act as temporary signal transfer stations, thus establishing wireless communication links in extreme environments. The fourth is to use drones for emergency mapping. Using the UAV integrated aerial survey and mapping module, all the information of the disaster accident site was collected and transmitted to the on-site headquarters, and the terrain of the disaster site was surveyed urgently, which provided strong support for rescue.

(4) Auxiliary supervision. Using aerial photography to achieve comprehensive real-time monitoring of high-rise and super-high-rise buildings, timely discover fire hazards, control the fire scene in real time, conduct building fire inspection or on-site fire image storage, connect aerial surveillance video to other security or fire monitoring systems, support large-capacity long-term image storage and retrieval, and support remote viewing and control of some functions through intelligent terminals.