Autonomous-landing control system of unmanned aerial vehicle

The invention discloses an autonomous-landing control system of an unmanned aerial vehicle. The system includes a detection device located at the unmanned aerial vehicle, a first processor connected with the detection device and a ground identification device. On the basis of target recognition based on machine vision, the ground identification device is provided with a detection target area including a pattern recognition area and a thermal sensing recognition area. The corresponding first processor is used to determine a relative position of the unmanned aerial vehicle and the ground identification device according to a position of the detection target area recognized by the detection device, and thus recognition of the ground identification device can be carried out according to two features of a pattern image and a thermal sensing image. Operation of selecting, according to intensity of light rays, whether to recognize a pattern feature or a thermal sensing feature is supported, requirements on ambient li