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Multiple-laser cooperation scanning method

A multi-laser and laser source technology, applied in the field of laser scanning, can solve problems such as the limitation of system capture time performance improvement, and achieve the effects of good capture probability performance, high work efficiency, and high capture probability

Active Publication Date: 2018-05-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Claims
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Problems solved by technology

[0004] Aiming at the above-mentioned shortcomings in the prior art, a multi-laser cooperative scanning method provided by the present invention solves the problem of the limitation of system capture time performance improvement in the single-point scanning mode

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Embodiment Construction

[0038] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0039] Such as figure 1 As shown, the method for multi-laser cooperative scanning comprises the following steps:

[0040] S1. Set n laser sources respectively at the vertices of a regular n-gon with a side length of r, and set a laser source at the center of the regular n-gon;

[0041] S2, making the laser source positioned at the center of the regular n-gon perform omni-directional scanning of the n-gon; making the laser ...

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Abstract

The invention discloses a multiple-laser cooperation scanning method. The method comprises the following steps of S1, arranging n laser sources at peak positions of an n-regular polygon whose side lengths are r, and arranging one laser source at a center position of the n-regular polygon; S2, making the laser source located at the center position of the n-regular polygon carry out omnibearing rotation n polygon scanning; and making the laser sources located at the peak positions of the n-regular polygon carry out continuous scanning in an area delimited by a periphery of the n-regular polygon;and S3, determining and stopping scanning of the laser source located at the center position; and according to a light intensity value detected by a receiving end laser, determining whether the lasersource scans a target and stopping scanning. In the invention, one laser source is used to scan an internal area of the n-regular polygon, and the n laser sources are used to carry out cooperation scanning in the periphery of the n-regular polygon so that a dead angle is not left during scanning; simultaneously, a high capturing probability is guaranteed; a limitation of system capturing time performance improvement in a single-point scanning mode is overcome; and the system possesses high working efficiency.

Description

technical field [0001] The invention relates to the field of laser scanning, in particular to a multi-laser cooperative scanning method. Background technique [0002] There are six existing laser scanning methods: the first one is Lissajous scanning, the scanning curve is a sinusoidal function with delay in time domain and frequency domain, the disadvantage of this method is that there is a missing scanning area, and it is difficult to implement; The second is progressive linear scanning, which is a way for the laser to scan line by line in sequence. The disadvantage of this method is that the scanning time is long and the efficiency is not high; the third is rose scanning, which uses sinusoidal scanning. The trajectory of the AM signal generated based on the wave is generated according to the rose equation. The general rose equation is an eight-petal rose. The central processing unit has a heavy burden; the fourth type of involute helical scanning, which is formed by the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/10
Inventor 杨帆何青兰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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