In recent years, with the development and application of the geographic information industry, remote sensing, as the front end of the geographic information industry, has also received much attention. Traditional geospatial data acquisition methods are facing the challenges of modern technology and equipment. Advances in remote sensing technology, especially the large number of high-resolution satellite imagery applications and the development of aerial remote sensing, have injected fresh blood into the data acquisition methods. The advantages of satellite remote sensing images need not be repeated, and they have been welcomed by the masses as a supplement to vector maps. However, as a professional geographic information application, its insufficient data acquisition ability, poor current situation, and slow return visits are its flaws. Compared with satellite remote sensing, traditional large aircraft aerial photography is more flexible and the image quality is higher, but the process of aircraft leasing, airport management, and airspace application is too complicated, and the requirements for clouds are relatively high. At the same time, with the development of communication technology, sensors, and other technologies, surveying and mapping drones have emerged as a low-cost, high-precision, easy-to-use remote sensing image acquisition equipment, and have been used in traditional surveying and mapping, digital city construction, geographical conditions Good results have been achieved in monitoring and emergency response. UAV mapping Since the 1980s, unmanned aerial vehicles have been used in surveying and mapping projects abroad. Before the global positioning system was opened to civilian use, unmanned aerial vehicles could only perform aerial photography operations through simple remote control operations. There are many types of drones, including drones and airboats. Airboats have been around for more than 200 years and have been transformed from hot air balloons. Initially, airboats were mainly used for military strikes and later used for high-altitude reconnaissance. As a low-cost, convenient-to-operate aircraft, many surveying and mapping units have some new-type surveying and mapping airboats. But the shortcomings of the airboat are very obvious: it takes a long time to prepare for take-off because a large amount of helium needs to be injected before the flight; too much time is wasted due to the need to overcome the air resistance during take-off and landing; It is difficult to run stably in harsh conditions. Compared with empty boats, surveying and mapping drones are also less expensive and highly operable. They can take off and land anytime, anywhere, do not require much preparation time, and can adapt to different terrain and weather conditions. An excellent means of aerial photography, and has become more and more popular in surveying and mapping units.
