Linear array CCD spatial target posture based measuring systems and its measurement method

A space target and measurement system technology, applied in the field of photoelectric geometric quantity measurement, can solve problems such as high price, contradiction between speed and precision, and poor applicability

Inactive Publication Date: 2008-07-09
HARBIN INST OF TECH
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Problems solved by technology

At present, two methods are mainly used: one is the attitude measurement method based on laser interferometry, and the representative product is the third-generation laser tracker of API, which can realize high-precision attitude measurement of moving targets, but the cooperation target is complicated and the applicability is poor. It is not easy to achieve dynamic measurement, and i

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  • Linear array CCD spatial target posture based measuring systems and its measurement method
  • Linear array CCD spatial target posture based measuring systems and its measurement method
  • Linear array CCD spatial target posture based measuring systems and its measurement method

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[0067] The present invention will be further explained below in conjunction with the drawings:

[0068] Aiming at a cylindrical object to be measured, according to the principle of attitude measurement based on linear CCD, a typical attitude measurement device is designed as shown in Figure 4. Take the intersection of the measured object’s axis line with the two end faces and the non-circular end point on the radius of the end face of the second intersection and arrange the wavelength ranges in the visible light band as 580~595nm, 615~635nm and 515~530nm respectively. LEDs are used as PCTa7, PCTb8 and PCc9. At the initial moment, the plane determined by the three points should be parallel to the horizontal plane; 3 1DISDPTs are fixed at equal intervals at an angle of 30° according to the optical axis direction to form S3DCRDPT10; 3 1DIUS according to the optical axis The directions are fixed at equal intervals at an angle of 30° to form S3DCRPT11, which is equivalent to a combinat...

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Abstract

The invention provides an aerial target attitude measurement system based on linear CCD and a method thereof. The three-dimensional coordinates of three point cooperative targets arranged on a measured object in conformity to certain rules, carrying the attitude information thereof and corresponding to the wavelength range of optical filters arranged on reconstruction subsystems are respectively reconstructed by three three-dimensional coordinate reconstruction subsystems composed of nine selective one-dimension imaging units arranged with the optical filters, and the attitude angle of the measured target can be determined by spatial resolution. The invention also provides a special embedded system in pipeline system and with multiple parallel CPUs, and composed of the combined device, control panels of one-dimension imaging units, a main control panel, an extended LCD and a keyboard. The invention overcomes the contradiction of speed and precision when measuring the aerial target attitude with planar array image sensor as information input equipment, is easy to fulfill the real-time requirement of aerial target attitude measurement, and can be conveniently used.

Description

(1) Technical field [0001] The invention relates to the technical field of photoelectric geometric quantity measurement, in particular to a method for measuring the attitude of a space object. (2) Background technology [0002] The attitude measurement of the space target is the measurement of its attitude angle (pitch angle α, yaw angle β and roll angle γ), which can be widely used in robot research, flexible manufacturing system, precision mechanical assembly and internal attitude sensitive devices Aircraft factory inspection and other fields. At present, two methods are mainly used: one is the attitude measurement method based on laser interferometry, and the representative product is the third-generation laser tracker of API, which can realize high-precision attitude measurement of moving targets, but the cooperation target is complicated and the applicability is poor. It is not easy to achieve dynamic measurement, and it is expensive; the other is the attitude measurem...

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Application Information

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IPC IPC(8): G01B11/00G01B11/26G01B11/03
Inventor 艾莉莉袁峰丁振良
Owner HARBIN INST OF TECH
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