Research on high-definition image acquisition method and fast image inspection equipment of highway slope based on UAV

The UAV flight plan should comprehensively consider the influence of slope environment, slope safety level, geological conditions, UAV flight conditions and other factors, so as to determine the applicable environment and conditions for rapid and fine patrol inspection and define the patrol inspection plan for different types of slopes under different safety status and other levels. Combined with the current and future project inspection requirements and inspection contents, the main contents and inspection requirements for UAV inspection to obtain high-definition images under different inspection schemes are formulated. The development of highway slope inspection equipment was carried out. According to the slope inspection requirements and inspection contents, the selection principle of UAV was determined, including camera accuracy, hovering stability, camera zoom and focusing, etc. Finally, the "Royal" mavic two zoom version produced by Dajiang company was selected as the slope inspection equipment. The UAV slope inspection equipment has been developed, and the functions of slope inspection task establishment, task execution, image shooting, uploading and downloading have been successfully realized. The standardized operation process and method of UAV patrol inspection are established.