A UAV remote real-time positioning surveying and mapping display interconnected control method

Abstract

The invention discloses an unmanned aerial vehicle long-distance real-time positioning mapping display interconnection type control method, which comprises: determining the longitude, the latitude and the altitude of an unmanned aerial vehicle position, and the azimuth angle and the pitch angle of a camera; determining the altitude of a center point and the liner distance between the center point and the upright projection point of the unmanned aerial vehicle on the ground according to the linear distance between the unmanned aerial vehicle and the center point, wherein the linear distance between the unmanned aerial vehicle and the center point is determined by the laser distance measurement instrument on the unmanned aerial vehicle; determining the geographical coordinates of the center point by using a latitude and longitude calculation formula; calculating the true width and the true height of the visual field in the camera image by using a trigonometric function theorem according to the altitude of the unmanned aerial vehicle and the pitch angle, and determining the coordinates of other points by combining with the coordinates of the center point and the screen pixel resolution; and defining multiple marking points, calculating the distances between different marking points, and calculating the area of the polygon formed from the marking point by using a Heron's formula. According to the present invention, with the method, the positioning of the geographical coordinates of the any target point in the long-distance real-time video can be achieved, the altitude is determined, and the visual field area is determined.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle surveying and mapping, and specifically relates to an interconnected control method for remote real-time positioning, surveying and mapping display of an unmanned aerial vehicle. Background technique [0002] The application of drones in the field of surveying and mapping mainly uses drones to quickly obtain large-scale high-resolution images of the survey area. The spatial resolution of the acquired images ranges from cm to m, and the surveying and mapping information is fed back to the receiver on the ground. Therefore, all UAVs for surveying and mapping have high-precision digital imaging equipment with adjustable angles and wireless transceiver modules for information. It is suitable for 1:2000 or larger scale topographic map surveying and orthophoto production, and is fully capable of obtaining high-resolution remote sensing image data. After the image is acquired, use the ex...

AI Technical Summary

Problems solved by technology

[0014] 1. The current aerial survey technology is characterized by high precision and can generate different types of result files in the later stage, such as 3D models, etc., but the real-time performance is not strong. Even if the map can be generated in real time, the drone needs to fly directly above the designated location for aerial survey , it takes a certain amount of time to output the result, and the distance and area cannot be calculated immediately in the first time

[0015] And at present, the UAV defines a target point, must fly directly above the target point, and use its own GPS coordinates as the marking point of the target point, but cannot remotely determine the coordinates of any target point under the camera; The description of the target point is displayed in text on the video screen

[0016] two. At present, UAV networking applications are generally managed in a background server, or one machine is one ground station, and there is no interactive application between UAVs.

[0017] three. At present, the UAV and ground mobile device software record the event of the target point, and it is not marked according to the time axis, nor can it be associated with the location

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