Pipelines are the primary means of the distribution of oil and gas resources. The area where the oil and gas pipeline is located has the characteristics of long distance and wide range. These areas are often complex in geography such as large reservoirs, lakes and mountains. Especially when the pipeline crosses the edge of the original forest, high altitude and snow-covered areas the traffic and communication are extremely underdeveloped and geological disasters such as mudslides and landslides along the line also often occur. Therefore, routine manual inspections in these areas are difficult to achieve.

UAV patrols the Nanjing Yangtze River Bridge in the snow to ensure traffic safetyThe Yangtze River Bridge in Nanjing is the main north-south traffic route of China.In the winter of 2018, after the Nanjing Yangtze River Bridge was closed for 27 months, it was "welcome" two snowfalls within 10 days.

Unmanned Aerial Vehicle, abbreviated as "UAV", is a non-manned aircraft operated by radio remote control equipment and independently developed program control devices or operated by the onboard computer autonomously or intermittently. Compared to ordinary pilot aircraft, UAVs are more suitable for dangerous missions. UAVs can be divided into military and civilian drones depending on the field of application.

With the wide application of microprocessors and development of drone long range video transmission technology, governments around the world have more and more needs for mapping information, data content and updating. A new type of measurement method UAV aerial photogrammetry is constantly appearing in the public.

Natural disasters usually happen suddenly. The key to disaster emergency rescue is the rapid response after happening. Timely and accurate disaster information plays a vital role in timely formulating rescue strategies and improving rescue efficiency and rescue quality.

How to effectively use high-tech means to solve forest resources surveys, forest fire prevention and other issues has become the top priority of forestry work. At present, more new technologies and new equipment have been applied in forest fire prevention in foreign countries.