High precision visual guidance laser tracking method

A laser tracking and vision-guided technology, applied in the field of laser tracking, can solve problems such as lack and expansion of application limitations, achieve large-scale and high-precision tracking, overcome area scanning and search for targets

Inactive Publication Date: 2017-10-20
TONGJI UNIV
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Problems solved by technology

However, due to the lack of spatial location information of the target, t

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  • High precision visual guidance laser tracking method

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Embodiment 1

[0054] The invention provides a high-precision vision-guided laser tracking method, which can realize accurate and real-time tracking of three-dimensional dynamic and static targets within a relatively large space range. During the movement of the space target, the target image is collected in real time by the binocular vision measurement system, and the spatial position information of the target is calculated based on the principle of binocular vision measurement; for the spatial position information of the target, an appropriate reverse algorithm is used to efficiently solve the Corresponding to the rotation angle of the rotating double prism; and then quickly control the rotation of the rotating double prism system to the specified rotation angle position, the laser beam can be deflected to point to the position of the space target, ensuring high precision and real-time tracking of the space target.

[0055] see figure 1 , the purpose of the present invention is achieved by...

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Abstract

The invention relates to a high precision visual guidance laser tracking method which is realized by a laser tracking device. The laser tracking device consists of a binocular vision measuring system, a rotating double prism system and a laser emitter. The binocular vision measuring system is composed of a first camera, a second camera and a tripod for fixing the position. The rotating double prism system comprises a first rotating prism, a second rotating prism, a supporting structure and a driving device. The laser emitter is used to emit a laser beam. The method of the invention fully combines the advantage that the binocular vision measuring system can carry out three-dimensional measurement in a wide range and the characteristic that the rotating double prism system can realize high precision tracking, and ensures that the laser beam is guided by the binocular vision measurement information quickly and accurately to track a dynamic or static 3D target. In addition, the method can be extended to other areas such as laser vibration measurement, laser welding, laser cutting, laser engraving, laser drilling and surface treatment.

Description

technical field [0001] The invention relates to laser tracking technology, in particular to a high-precision vision-guided laser tracking method combining a laser tracking system and a binocular vision measurement system. Background technique [0002] Laser tracking technology is widely used in the adjustment of beam pointing and imaging boresight, such as inter-satellite laser communication, infrared countermeasures, laser Doppler vibration measurement, biomedical imaging and complex structure processing and many other fields. Among them, the realization of three-dimensional dynamic and static targets Tracking has become an important aspect of the application of laser tracking technology, and relevant research and application have been carried out at home and abroad. [0003] Several typical 3D target tracking methods are given in the following prior art. [0004] The prior technology (Wang Weiguo et al., "Satellite Tracking Strategy for Three-axis Turntable", "Optical Pre...

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Application Information

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IPC IPC(8): G01S17/66
CPCG01S17/66
Inventor 李安虎刘兴盛
Owner TONGJI UNIV
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