Light intensity modulation interference method and system for precisely pointing laser interference

A technology of light intensity modulation and laser beam, which is applied in the field of laser interference, can solve the problems of personal privacy, property safety and police execution of official duties, poor concealment, high cost, etc., to achieve strong concealment, small system size and reliability high effect

Active Publication Date: 2021-12-14
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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AI Technical Summary

Problems solved by technology

This has caused serious harm and challenges to personal privacy, property safety, and police execution of official duties
[0003]At present, the relevant technology of jamming cameras is also gradually developing, and there are some mature jamming devices on the market, but most of the devices include galvanometers, which leads to the large size of the devices , high cost, poor concealment

Method used

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  • Light intensity modulation interference method and system for precisely pointing laser interference
  • Light intensity modulation interference method and system for precisely pointing laser interference

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Embodiment 1

[0026] Embodiment 1: A light intensity modulation interference method for precisely pointing laser interference, as attached figure 1 As shown, it specifically includes the following steps:

[0027] a. Use a laser to emit laser light to the target camera, and the camera module takes an image after finding the spot between the target camera and the laser beam;

[0028] b. The ranging module is started to measure the distance between the laser and the target camera;

[0029] c. The data processing module receives the data returned by the camera and the ranging module, and obtains the angle deviation value and distance value between the laser module and the target camera; the laser pointing control module controls the laser to adjust the exit angle according to the angle deviation value, and the laser adjusts the zoom according to the distance value , so that the laser spot zoom is adjusted to an appropriate size to completely cover the lens of the target camera;

[0030] d. Th...

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PUM

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Abstract

The invention discloses a light intensity modulation interference method and a system for precisely pointing laser interference, and the method comprises the steps: enabling a camera module and a distance measurement module to be started to obtain the precise position of a target camera, enabling a laser pointing control module to control a laser to adjust the emergent angle according to an angle deviation value, and enabling the laser to adjust the zooming according to a distance value, and meanwhile, modulating the laser, and enabling laser beams emitted by the laser to continuously irradiate the lens of the target camera, so that the target camera is interfered. Therefore, the system has the characteristics of high interference precision, small system size, strong concealment and high reliability. In addition, the system is provided with two sets of lasers, the lasers can be switched according to the daytime environment and the night environment, invisible light is used for interference at night, and good concealment is achieved.

Description

technical field [0001] The invention relates to the technical field of laser interference, in particular to a light intensity modulation interference method and device for precisely pointing laser interference. Background technique [0002] In recent years, with the development of science and technology, the popularity of cameras has become higher and higher, which has greatly promoted social security and stability, and played a major role in protecting people's property safety. However, the rapid popularization of cameras has also brought about the problem of abuse. Some criminals can use cameras to spy on other people's privacy; cameras are placed in key positions to monitor police and other personnel. This has caused serious harm and challenges to personal privacy, property safety and police execution of official duties. [0003] At present, the relevant technologies of jamming cameras are gradually developing, and there are some mature jamming devices on the market, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232G01B21/02
CPCG01B21/02H04N23/56H04N23/69H04N23/695
Inventor 戴恩文潘卫清
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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