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Fast multi-laser scanning method

A fast-scanning, multi-laser 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: 2018-03-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings in the prior art, a multi-laser fast 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

[0027] 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.

[0028] Such as figure 1 and figure 2 As shown, taking four laser sources distributed at the vertices of a square with side length r as an example, the multi-laser fast scanning method includes the following steps:

[0029] S1. Set n laser sources respectively at the vertices of regular n-gons with side length r;

[0030] S2. Make each laser source perform omni-directional helical scanning synchronously;

[0031] S3. Det...

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Abstract

The invention discloses a fast multi-laser scanning method. The fast multi-laser scanning method includes S1, arranging n laser sources at peaks of an n-regular-polygon with the side length of r respectively; S2, allowing each laser source to perform all-dimensional spiral scanning; S3, detecting the spiral scanning radius of each laser source, continuing spiral scanning if the spiral scanning radiuses are smaller than the distances between the side lengths and the center of the n-regular-polygon, and keeping each laser source spirally scanning in respective 1 / n sector region if the spiral scanning radiuses are equal to the distances between the side lengths and the center of the n-regular-polygon; judging whether or not the laser sources scan a target according to light intensity values of laser detection of a receiving terminal, and stopping scanning if the target is scanned. By the fast multi-laser scanning method, limitation on scanning time performance improvement in simple scan modes is broken through, and higher system working efficiency is realized.

Description

technical field [0001] The invention relates to the field of laser scanning, in particular to a multi-laser rapid 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 laser s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/10
CPCG02B26/10
Inventor 杨帆何青兰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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