Engineering investigation method combining laser radar and oblique photography

Abstract

The invention provides an engineering investigation method combining a laser radar and oblique photography. The method comprises the following steps: selecting two opposite sides of the target building as a starting point and an ending point respectively; providing an unmanned aerial vehicle carrying a laser scanner and an oblique photography camera, enabling the unmanned aerial vehicle to fly from a starting point to an end point along at least two different preset airlines, obtaining laser point cloud data and oblique image data through the laser scanner, and then performing processing to generate a three-dimensional live-action model. The technical scheme of the invention is adopted; high-quality and high-precision fine investigation on the target building is realized; the field workload is greatly reduced, the investigation period is shortened, the laser scanner and the oblique photography camera are both carried on the unmanned aerial vehicle for use, the unmanned aerial vehicle can work in severe environments and dangerous areas, the safety of engineering surveying and mapping personnel is protected, and the labor intensity of the engineering surveying and mapping personnel is relieved.

Description

technical field [0001] The invention relates to the technical field of engineering survey, in particular to an engineering survey method combining laser radar and oblique photography. Background technique [0002] In engineering survey and design, in order to optimize the route plan, select the bridge type, locate the piers and abutments, arrange the geological boreholes and design the entrance and exit of the tunnel, etc., it is necessary to carry out fine survey work on some projects. In engineering reconnaissance, not only high-precision surveying and mapping of engineering topographic maps and sections is required, but also manual interpretation of engineering topography, landform, lithology, etc., to identify dangerous rocks and falling rocks. Therefore, to complete engineering investigation, not only quantitative measurement, but also qualitative interpretation is required. At present, engineering surveys usually use GPS-RTK, total station and other technologies to co...

AI Technical Summary

Problems solved by technology

At present, engineering surveys usually use GPS-RTK, total station and other technologies to complete manual field surveying and identification. Although the methods are mature and reliable, they are time-consuming and labor-intensive, especially in difficult and dangerous engineering environments. The quality of the survey brings great hidden dangers