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A Multi-laser Rapid 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: 2019-07-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • 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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  • A Multi-laser Rapid Scanning Method

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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 multi-laser fast scanning method, which comprises the following steps: S1, respectively setting n laser sources at the vertices of a regular n-gon with side length r; S2, making each laser source carry out omnidirectional Helical scanning; S3, detect the helical scanning radius of each laser source, if it is less than the distance from the side length to the center of the regular n-gon, continue the helical scan; if it reaches the distance from the side length to the center of the regular n-gon, keep each Each laser source scans spirally in its respective 1 / n fan-shaped area; judge whether the laser source scans the target according to the light intensity value detected by the laser at the receiving end, and if it scans the target, the scan ends. The invention solves the limitation of scanning time performance improvement in the single-point scanning mode, so that the system has higher working efficiency.

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 Patents(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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