Oblique three-dimensional aerial measurement data acquisition system and acquisition method and control terminal

Abstract

The invention relates to an oblique three-dimensional aerial measurement data acquisition system, which comprises a flight platform and the control terminal. The flight platform comprises a multi-rotor unmanned aerial vehicle and a single camera arranged on the multi-rotor unmanned aerial vehicle. The control terminal comprises a task area planning module for planning the flight course; and a parameter setting module for setting flight parameters of the multi-rotor unmanned aerial vehicle, the flight parameters comprising start point position, final point position, inclination angle of a nose, airplane flying height, forward overlap degree and side overlap degree. The multi-rotor unmanned aerial vehicle flies according to the planned number of flight, the flight course and the set parameters. The camera is used for collecting data in the flying process. The invention also provides a data acquisition method and the control terminal. Compared with the prior art, the brand-new flight data acquisition method is designed to adapt to a single-lens, multi-rotor and individual oblique photograph acquisition work mode; furthermore, full-automatic flight acquisition is realized, and operation process is normalized; and achievement quality is ensured and work efficiency is improved.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicle control, in particular to an acquisition system, acquisition method and control terminal for three-dimensional aerial survey data. Background technique [0002] The world is three-dimensional. With the development of computer, surveying and mapping, and geographic information technology, people are increasingly demanding to see the world from a three-dimensional perspective. The advantages of true three-dimensional digital city construction are gradually becoming prominent, and it has become the mainstream of smart city information construction all over the world. Oblique photography technology is a high-tech developed in the field of international surveying and mapping in recent years. It subverts the limitation that orthophotos can only be taken from vertical angles in the past. By carrying multiple sensors on the same flight platform, and simultaneously collecting images from five differ...

AI Technical Summary

Problems solved by technology

It is difficult to popularize and apply. It can only be used as professional equipment for professional units for industry services, and cannot be popularized to all surveying and mapping units.

[0012] (2) There are many equipments on the flight platform, the operation is complicated, professional flight control personnel are required, and the threshold of aviation technology is high

First, the flight platform is relatively large, and generally requires a large customized vehicle for transportation; second, in addition to the flight platform, there are many accessories such as ground stations, radio stations, and communication antennas, and the operation process is complicated; third, professional pilots are required Personnel operation, high technical threshold for flight operation

[0014] (3) The operation flexibility is poor, and it is greatly affected by airspace application and weather external factors

First of all, it is necessary to apply for aviation airspace, and the processing period takes at least one month, which is difficult to adapt to the small-area aviation market; secondly, the aviation site needs to survey and select an open take-off and landing site. Generally, an open and flat area with a radius of 100 meters is required at least. Time-consuming and labor-intensive; third, the minimum flight altitude is relatively high, generally above 1,000 meters, requires high transparency of the weather, and is greatly affected by external environmental factors such as weather

[0016] (4) The tilt angle of the camera is fixed, and the flight acquisition method is limited

It is often difficult to meet the high-demand aviation flight requirements in densely built areas and cultural relics protection areas.

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