DJI, which types of UAV aerial photography are suitable for engineering survey institutions?

Are you talking about engineering survey, surveying and mapping, three-dimensional modeling, infrared or something else? Infrared DJI has a Zen XT thermal imaging camera. Zen XT thermal imaging camera can be directly installed on the camera interfaces of "Wu" Inspire 1 and Jingwei M 100, and can take off immediately without any debugging, so that you can get into work quickly. Lightbridge provides control distance as far as 5km * and real-time images, which can be monitored in real time, and can also save image data for subsequent analysis and reporting. The intelligent flight function allows the aircraft to fly autonomously according to the settings, and you can focus on monitoring. DJI insight can also be used for modeling. There is PIX4D abroad, which cooperates with software specialized in modeling and orthophoto. As long as the sampling rate of photos taken by the plane is relatively high, the accuracy of modeling is still relatively good, and of course it depends on the complexity of modeling.