A target image control point layout system for UAV aerial photography surveying and mapping

Abstract

A target image control point layout system for drone aerial photography surveying and mapping, including a drone, which is equipped with a target airdrop device and a mesh target, and the mesh target includes a mesh body and a ground-fixed body, the grid body forms a plane calibration object with alternate colors, and the outer edge of the grid is equally provided with several ground-falling fixtures. A protective film of viscous mastic; the target airdrop device includes a launch mechanism and a number of launch tubes corresponding to the number of fixed bodies falling to the ground, and the launch tubes are arranged on the periphery of the grid body, including the first A through hole, one end of the first through hole communicates with the launching mechanism. By loading the target with the drone, it can overcome the complex terrain, replace the manual setting of the target in the field, and avoid the risk of distress in the field. Through unmanned aerial vehicle cluster technology and satellite positioning technology, the batch and precise layout of targets can greatly improve the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of aerial surveying of unmanned aerial vehicles, in particular to a target image control point layout system for aerial photographing surveying and mapping of unmanned aerial vehicles. Background technique [0002] UAVs are widely used in aerial surveying and mapping projects due to their advantages of light weight, convenient take-off and landing, flexible operation, low flight cost, and the ability to quickly and efficiently obtain high-resolution image data of survey areas. Aerial triangulation technology based on pos provides more accurate external orientation elements of image exposure time, which greatly improves the accuracy of aerial triangulation. However, because the UAV is equipped with a non-measurement camera, the image distortion is relatively large, and the UAV itself has poor wind resistance and unstable image attitude. Image control point measurement has become a necessary part of UAV aerial...

AI Technical Summary

Problems solved by technology

However, since the UAV is equipped with a non-measurement camera, the image distortion is relatively large, coupled with the UAV's own poor wind resistance and unstable image attitude, image control point measurement has become a necessary part of UAV aerial survey

[0003] However, in the face of complex terrain and landform restrictions in the field, such as mountainous areas and steep slopes, it is not only inefficient to deploy image control points through manual field work, but also poses personal dangers in some inaccessible places.

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