Target layout device and layout method for photogrammetry on the top of ancient buildings

Abstract

The invention discloses a target layout device and method for photogrammetry on the top of a historic building. The device comprises an overhanging pipe, an exhausting pipe in the overhanging pipe is communicated with a sucking pump through an exhaust hole, a sucking disc communicated with the exhausting pipe is installed at the front end of the overhanging pipe, and a target for photogrammetry is adsorbed on the sucking disc; a touch type switch is installed at outer side of the front end of the overhanging pipe simultaneously, and a telescopic trigger rod in the touch type switch is parallel to the overhanging pipe and extends to the outer side of the sucking disc. The target layout method comprises the following steps: firstly, installing the overhanging pipe on an unmanned aerial vehicle through an installing frame, and communicating the exhaust hole at the root of the exhausting pipe with the sucking pump on the unmanned aerial vehicle; adhering the frontage of the target to the sucking disc, switching on a power source of the sucking pump so as to fix the target on the sucking disc, and uncovering a sticker on a sponge double-faced adhesive tape on the back of the target to expose a viscous surface; and enabling the unmanned aerial vehicle to take off to gradually approach to a correct position on the historic building and adhering the target to the building, and repeating the process until the layout of multiple and various targets is finished.

Description

technical field [0001] The invention relates to the comprehensive application technical fields of digitization of architectural heritage, surveying and mapping, measurement, and image processing. Background technique [0002] 1. Ancient building measurement technology [0003] (1) Overview of ancient building surveying and mapping requirements and surveying equipment development: [0004] Most of the blueprints used in the construction of ancient buildings have been lost, so the surveying and mapping of ancient buildings has become one of the primary tasks for the protection of ancient buildings. At present, the surveying and mapping of ancient buildings has developed to the stage of digitalization. Ground three-dimensional laser scanning and low-altitude photogrammetry replace rulers as the two most mainstream means of obtaining high-density data. Ground laser scanning is limited by the low angle of ground operations, and the data obtained on the upper half and top of anc...

AI Technical Summary

Problems solved by technology

[0017] Placing a color card near the root of the wall is the most important mode of color calibration, but because different parts and components on the facade of ancient buildings are under different lighting conditions, the color card erected at the root of the wall can only be used to calibrate the nearby walls color, and cannot accurately correct bucket arches under the eaves in a dark environment, or the surface of a pitched roof

[0018] The correction effect of the color card placed on the ground is limited, but the layout of the color card at a high place also faces difficulties such as personnel climbing and equipment lifting, so it is rarely implemented at present

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