Earth-rock volume measuring and calculating method based on unmanned aerial vehicle inverse modeling technology

Abstract

The invention discloses an earth-rock volume measuring and calculating method based on an unmanned aerial vehicle inverse modeling technology. The earth-rock volume measuring and calculating method comprises the following steps: S1, setting a plurality of target control points in an earth-rock volume to-be-measured area; S2, cleaning the site of the to-be-detected area before data acquisition; S3, setting related parameters of the unmanned aerial vehicle based on main factors influencing the image acquisition precision of the unmanned aerial vehicle, wherein the main factors influencing the image acquisition precision of the unmanned aerial vehicle comprise an air route, a relative flight height and an overlapping degree; S4, determining the number and direction of air routes, and delimiting an aerial survey area of the unmanned aerial vehicle; S5, acquiring and outputting oblique shooting data of the unmanned aerial vehicle; S6, performing reverse modeling by using the oblique shooting data of the unmanned aerial vehicle; and S7, based on the established model, calculating the earth-rock volume.

Description

technical field [0001] The invention relates to the technical field of earth-rock volume measurement and calculation, in particular to an earth-rock volume measurement and calculation method based on unmanned aerial vehicle inverse modeling technology. Background technique [0002] Traditional methods of earthwork measurement and calculation, such as grid, scatter method, and table method, are often limited by measurement tools and terrain, and the RTK (Real-time kinematic, real-time dynamic) carrier phase difference technology introduced in recent years is also expensive due to equipment , Strong professionalism and cannot be applied to project engineering at any time. Therefore, the earth and stone measurement method in the prior art has the following disadvantages: ① depends on the manual operation of surveyors, and field surveying and mapping cannot guarantee the safety of surveying and mapping personnel; ②RTK equipment is expensive and professional, and cannot be applie...

AI Technical Summary

Problems solved by technology

[0002] Traditional methods of earthwork measurement and calculation, such as grid, scatter method, and table method, are often limited by measurement tools and terrain, and the RTK (Real-time kinematic, real-time dynamic) carrier phase difference technology introduced in recent years is also expensive due to equipment , Strong professionalism and cannot be applied to project engineering at any time

Therefore, the earth and stone measurement method in the prior art has the following disadvantages: ① depends on the manual operation of surveyors, and field surveying and mapping cannot guarantee the safety of surveying and mapping personnel; ②RTK equipment is expensive and professional, and cannot be applied to project projects at any time; ③ surveying and mapping and It takes a long time to calculate the amount of earthwork

However, there are some defects in this invention. This method does not set target control points in the area to be measured, but only designs and plans the take-off and landing positions, heights and routes of the UAV, so the accuracy of the 3D model obtained in this way is relatively low.

In this method, it is mentioned that the calculation of earthwork engineering quantity needs to be calculated manually combined with engineering drawings, and the calculation workload is complicated. At the same time, this method does not specify the data collection process of earthwork engineering quantity, the formation process of 3D model, and the crucial calculation process, so the operability is relatively low. Low

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