Method for line laying operation guided through image

Abstract

The invention discloses a method for line laying operation guided through an image. According to the method, a hypothetic elevation, a hypothetic spatial point, an azimuth angle and a vertical angle are adopted to reckon the theoretical imaging position of a spatial real point in an image. Through the method, a theoretical real plumb line or part of the plumb line (namely pile line or independent image point) of to-be-laid plane coordinate data is plotted in an image shot for a area for allowing a line to be laid; foresight staff hold a surveying rod to a line laying site and erect the surveying rod at a site position where the central axes of the shadow of the surveying rod in the images shot by multiple photographic devices overlaps with the independent image points in the images where the shadow of surveying rod is positioned, or overlaps with pile lines of the images where the shadow of the surveying rod is positioned, and the site position is the accurate position of the laid line on the spot.

Description

Technical field [0001] The invention relates to an image-guided setting out method, which belongs to the field of surveying and mapping, and relates to photographic surveying and mapping and surveying and mapping setting out (that is, releasing theoretical plane coordinate data to the field, both setting out and setting out points are the same meaning). Background technique [0002] Have not yet consulted the existing background technical materials of the method for setting out the wire with image guidance. Existing method of laying out wires, useful theodolite or total station to carry out fixed direction, fixed distance wire method, and the wire method of using GPS or other satellite positioning facilities to carry out, its common defect is that the release of single plane coordinate data At the beginning of the work, since the theodolite has not been used to measure and guide, or the theodolite has not been used to guide a direction and a far distance after measurement, t...

AI Technical Summary

Problems solved by technology

Existing method of laying out wires, useful theodolite or total station to carry out fixed direction, fixed distance wire method, and the wire method of using GPS or other satellite positioning facilities to carry out, its common defect is that the release of single plane coordinate data At the beginning of the work, since the theodolite has not been used to measure and guide, or the theodolite has not been used to guide a direction and a far distance after measurement, the front-view personnel generally cannot clearly know where the plane coordinate data corresponds to the real point. It takes more than one time to reach the vicinity of the corresponding real point of the plane coordinate data, and a single device can only perform a set of line setting, that is, several coordinates can only be placed one by one (only a group of front-view personnel can operate), the work efficiency is not high, and The highest accuracy of the positioning of the plane coordinate position (here is not mentioned here) is not high, especially the current satellite positioning facilities. The single plane coordinate data setting error of the line is about 1CM. For the construction line Not a precision pay-off facility

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