Method for measuring attitude of target space with parallel line features

A technology of space attitude and measurement method, applied in the field of optical measurement, can solve the problems of complex measurement instruments, complicated measurement steps, and expensive equipment.

Inactive Publication Date: 2018-08-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI +2
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing measurement methods must set cooperative mark points on the straight line, the measurement steps are complic

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  • Method for measuring attitude of target space with parallel line features
  • Method for measuring attitude of target space with parallel line features
  • Method for measuring attitude of target space with parallel line features

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Embodiment Construction

[0068] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0069] The method of the present invention is a universal three-dimensional attitude measurement method, which relates to the measurement of the three-dimensional attitude (pitch angle, roll angle and azimuth angle) of the target space with the characteristics of parallel lines, such as steel beams, sleepers, and installations with parallel edges. Accessories, cubic structural parts, or the measurement of the target space posture that can be marked with parallel lines on the surface, etc.

[0070] The present invention is as follows to the step of the target space attitude measurement method with parallel line feature:

[0071] like Figure 5 As shown, in the method of the present invention, the camera 1 and the single-line laser 2 are installed. When applied to different scenes, the baseline length between the two can be adjus...

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Abstract

The invention relates to a method for measuring the attitude of a target space with parallel line features. Existing measuring methods have the problems of arrangement of cooperative marking points ona straight line, complicated measuring steps, complex measuring instrument and expensive device. The method comprises the following steps: 1) establishing a measurement system; 2) calibrating a linelaser plane equation; 3) calculating the spatial direction vector of a straight line of the line laser irradiated onto the surface of an object to be measured; 4) calculating the expression of a target space of the parallel line features pointing in a camera coordinate system; and 5) solving the attitude angle and the azimuth angle by the rotation transformation of the coordinate system. The method can directly use the parallel line features of the surface of the measured target object without arranging the cooperative marking points on the target, and allows the three-dimensional attitude information of the measured target object in the space to be obtained without an expensive three-dimensional coordinate measuring instrument, so the method has the advantages of convenience in arranginga measuring system, low cost, and simple measuring steps.

Description

technical field [0001] The invention relates to the technical field of optical measurement, in particular to a method for measuring the spatial attitude of an object with parallel line characteristics. Background technique [0002] In the field of precision measurement, intelligent automatic assembly, and attitude angle measurement, it often involves the measurement of the spatial attitude of the object to be measured, such as the installation direction error measurement of steel beams in construction engineering, and the assembly error detection of strip structural parts in precision instrument assembly (such as motion guide rail), cube base attitude measurement, etc. For the attitude detection of this kind of target space with the characteristics of parallel straight lines, two mark points are usually set on the two parallel straight lines respectively, and space coordinate measuring instruments are used, such as binocular measurement system, three-coordinate measuring ins...

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Application Information

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IPC IPC(8): G01C11/02G01C11/32
CPCG01C11/02G01C11/32
Inventor 郝冲王海吴易明朱帆
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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