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Power adjustment method, device and human body security inspection device

A technology of power adjustment and human body security inspection, which is applied in the detection field, can solve problems such as human radiation hazards and affecting imaging clarity, and achieve the effect of reducing radiation hazards and ensuring clarity

Active Publication Date: 2017-01-04
SHENZHEN HUAXUN FANGZHOU OPTOELECTRONIC TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the millimeter wave is greatly affected by the humidity of the environment. If you use a smaller microwave signal strength, when the millimeter wave is attenuated, it will affect the imaging clarity. If you use a larger microwave signal strength, when the millimeter wave When subjected to a small attenuation, it will cause certain radiation hazards to the human body

Method used

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  • Power adjustment method, device and human body security inspection device
  • Power adjustment method, device and human body security inspection device
  • Power adjustment method, device and human body security inspection device

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Embodiment 1

[0029] Embodiment 1 of the present invention provides a power adjustment method, and the power adjustment method is applied to human body security inspection equipment with a millimeter wave transceiver device, or to other detection equipment with a millimeter wave transceiver device. An adjustable power attenuator is provided in the millimeter wave signal transmission link of the millimeter wave transceiver device. figure 1 It is a schematic diagram of the implementation flow of the power adjustment method in Embodiment 1 of the present invention, as shown in figure 1 As shown, the power regulation method in the first embodiment includes:

[0030] Step S101: Obtain the current humidity value obtained by detecting the humidity of the environment where the millimeter wave transceiver device is located by a preset humidity sensor;

[0031] Specifically, a humidity sensor may be provided in the environment where the millimeter-wave transceiver device is located, and the humidity...

Embodiment 2

[0043] According to the power adjustment method in the first embodiment above, the second embodiment of the present invention provides a power adjustment device, which is applied to a human body security inspection device or a detection device having a millimeter wave transceiver device. figure 2 It is a schematic diagram of the composition and structure of the power adjustment device according to Embodiment 2 of the present invention, such as figure 2 As shown, the power regulating device in this embodiment includes a humidity sensor 201, a power controller 202 and an adjustable power attenuator 203, and the power controller 202 is connected to the humidity sensor 201 and the adjustable power attenuator 203 respectively, and the adjustable power attenuator 203 is set in the millimeter wave signal transmission link of the millimeter wave transceiver device.

[0044] The humidity sensor 201 is used to detect the humidity of the environment where the millimeter wave transceive...

Embodiment 3

[0049] According to the power adjustment device in the above-mentioned embodiment 2, embodiment 3 of the present invention provides a human body security inspection device. image 3 It is a schematic diagram of the composition and structure of the human body security inspection equipment in Embodiment 2 of the present invention, as image 3 As shown, the human body security inspection equipment in this embodiment includes a power adjustment device 301 and a millimeter wave transceiver device 302. The power adjustment device 301 includes a humidity sensor 3011, a power controller 3012, and an adjustable power attenuator 3013. The power controller 3012 is connected to the humidity The sensor 3011 and the adjustable power attenuator 3013 , the adjustable power attenuator 3013 is arranged in the millimeter wave signal transmission link of the millimeter wave transceiver device 302 .

[0050] The humidity sensor 3011 is used to detect the humidity of the environment where the milli...

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Abstract

The invention relates to a power adjustment method, a power adjustment device and a human body security inspection device. The method is applied to a human body security inspection device or a detection device which is provided with a millimeter wave transmitting / receiving apparatus, a power adjustable attenuator being arranged in the millimeter wave signal transmitting link of the millimeter wave transmitting / receiving apparatus. The method includes the following steps that: a current humidity value obtained by a preset humidity sensor through detecting the humidity of an environment where the millimeter wave transmitting / receiving apparatus is located is obtained; the target power attenuation value of the power adjustable attenuator is determined based on the current humidity value, and the sum value of the target power attenuation value and a power attenuation value caused by influences of environment humidity on millimeter wave signals is a constant value; and the power adjustable attenuator is controlled to adjust the power attenuation value of the power adjustable attenuator to a value consistent with the target power attenuation value. With the power adjustment method provided by the technical schemes of the invention adopted, the definition of an imaged image can be ensured under a condition that radiation harm is small.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a power adjustment method, device and human body security inspection equipment. Background technique [0002] Millimeter wave is an electromagnetic wave with a wavelength from 1mm to 10mm, and its frequency is 30GHz to 300GHz. In practical engineering applications, the low-end frequency of millimeter wave is often reduced to 26GHz. In the electromagnetic spectrum, millimeter waves are located in the wavelength range where microwaves and far-infrared waves overlap, so they have the characteristics of both spectra. Compared with microwave, the characteristics of narrow beam and high-gain antenna are easy to realize, so that the millimeter-wave system can obtain higher spatial resolution and higher anti-interference ability; on the other hand, millimeter-wave devices are small in size and light in weight, so mmWave systems are easier to integrate. Compared with infrared and lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/20
CPCG01V8/005G01V8/20G01V3/17G01S13/89G06F17/14H01Q3/22
Inventor 陈寒江刘贝贝祁春超
Owner SHENZHEN HUAXUN FANGZHOU OPTOELECTRONIC TECH CO LTD
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