Comprehensive detection method of ccd combined total station
A comprehensive detection and total station technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of high cost, trouble, and tediousness, and achieve the effect of saving expenses
Active Publication Date: 2018-12-14
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology
[0002] So far, instrument calibration has to go to a strict calibration field for calibration, and both the calibration of the CCD lens and the calibration of the total station are relatively complicated and cumbersome, and it is difficult to achieve the calibration only through the existing calibration field. Calibration of combined instruments
If the combined instrument is not strictly calibrated, the measured data information will be meaningless, which will cause a lot of trouble and inconvenience to the actual measurement process:
[0003] ① When measuring the target to be measured, only through total station measurement or CCD lens photogrammetry, part of the measurement can be realized, and it is difficult to realize simple and fast target measurement;
[0004] ② General instrument calibration must be done in a strict large-scale calibration field, which is both troublesome and expensive;
[0005] ③The relative position relationship between the center of the CCD lens and the center of the total station is not clear, it is difficult to establish a certain relationship between the measured data information, and the measured data is meaningless
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Embodiment Construction
[0018] Aiming at the comprehensive detection of combined instruments, the present invention has greatly improved and innovated in terms of theoretical ideas and operating procedures, and provides a technical method for rapid comprehensive detection of CCD combined total stations, specifically:
[0019] (1) if figure 1 As shown, make a square target with a side length of 20cm×20cm, wherein there is a crosshair in the target surface, its intersection point is the feature point O, and the four corner points of the target are feature points 1, 2, 3, and 4 in a clockwise direction;
[0020] (2) Randomly select a measuring point, assuming that the coordinates of the measuring point are (0, 0, 0), place and level the CCD combined total station on this measuring point, first adjust the horizontal brake, and then turn the total station vertically Brake, keep the vertical angle at 90°, aim at the square target, wherein the characteristic point O of the square target is just at the cente...
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The invention discloses a comprehensive detection technology of CCD combined total station instrument. The technology is as below: preparing a simple square target with side length of 20cm*20cm to substitute a strict calibration field; placing and leveling instrument at arbitrary false station; first conducting normal case photography with a CCD lens on the square target and parsing the relative object space coordinates (Xi ', Yi', Zi') of the 4 feature points on the target; then directly measuring the relative coordinates (Xi, Yi, Zi) of each feature point on the square target by using a total station; and resolving the object space coordinates of feature points obtained by the total station and the image to obtain coordinates of feature points, and resolving the coordinate displacement (ex, ey, ez) and the amount of rotation angle (epsilon x, epsilon y, epsilon z) of the center of CCD lens relative to the center of the total station, so as to obtain the attitude offset parameters of the center of the CCD lens relative to the center of the total station.
Description
1. Technical field [0001] The invention relates to a comprehensive detection method of a combined instrument, in particular to a comprehensive detection method of a CCD combined total station. 2. Technical background [0002] So far, instrument calibration has to go to a strict calibration field for calibration, and both the calibration of the CCD lens and the calibration of the total station are relatively complicated and cumbersome, and it is difficult to achieve the calibration only through the existing calibration field. Calibration of combined instruments. If the combined instrument is not strictly calibrated, the measured data information will be meaningless, which will cause a lot of trouble and inconvenience to the actual measurement process: [0003] ① When measuring the target object to be measured, only through total station measurement or CCD lens photogrammetry, part of the measurement can be realized, and it is difficult to realize simple and fast target objec...
Claims
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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 冯仲科杨立岩冯泽民刘金成邱梓轩黄晓东
Owner BEIJING FORESTRY UNIVERSITY