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Millimeter wave security check system and method of flat structure

A millimeter wave, flat-panel technology, used in radio wave measurement systems, geological exploration using millimeter waves, and optical-based geological exploration, etc., can solve the requirements of millimeter wave detectors with very high inclination angles, high requirements on the length of security inspection channels, and impact on Accuracy of detection and other issues, to achieve comprehensive collection of security information, improve security efficiency, and use flexible effects

Pending Publication Date: 2020-01-17
浙江云特森科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of this method and system are also very obvious: the method of rotating scanning is time-consuming and produces uncomfortable noises. At the same time, because it is in a closed space, it brings a huge sense of insecurity to users, and the user experience is extremely poor.
Moreover, there are many parts required for the product, the structure is complex, and the manufacturing cost is high.
[0004] In addition, the patent number is 201610829046.3, and the invention patent titled "A Quick Pass Millimeter Wave Human Body Security Inspection System and Method" needs to install four sets of millimeter wave detectors and two sets of infrared detection devices at intervals and obliquely in the security inspection channel. The length of the channel is high, it takes up a lot of space, the structure is complex, and the manufacturing cost is high; and the angle of inclination of the millimeter-wave detector is very high, and a slight deviation will affect the accuracy of detection

Method used

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  • Millimeter wave security check system and method of flat structure
  • Millimeter wave security check system and method of flat structure
  • Millimeter wave security check system and method of flat structure

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0038] Such as Figure 1-4 As shown, a millimeter-wave security inspection system with a flat panel structure includes a flat panel structure 1, a mechanical scanning mechanism 2, a detection area, a linear scanning unit 3, a signal acquisition and processing module 4, a control module 5, an imaging display module 6 and an automatic identification module 7.

[0039] Wherein, the flat plate structure 1 is hollow inside, and one side of the flat plate structure 1 is permeable to millimeter waves, that is, the flat plate structure 1 is made of a material with high transmittance to millimeter waves. The line scan unit 3 is arranged in the flat structure 1, and the size and shape of the flat structure 1 can be designed according to needs. The line scan unit 3 includes multiple millimeter wave sources 31 , multiple millimeter wave detectors 32 and a main body 33 . The millimeter wave source 31 and the millimeter wave detector 32 are arranged at intervals in a sparse array structur...

Embodiment 2

[0054] This implementation is used in conjunction with Embodiment 1, and specifically discloses a millimeter-wave security inspection method with a flat structure, including the following steps:

[0055] (a) Preparatory stage: start the system, guide the persons to be inspected to stand on the metal detection board 8 of the flat structure 1, keep a fixed posture facing the flat structure 1 according to the prompts, and place the metal detection board 8 on the sole of the person to be inspected, It can make up for the inability to detect the soles of the feet through millimeter wave scanning.

[0056] In this step, the person to be inspected needs to raise his hands to expose the whole body, especially the underarm, to ensure the integrity of the inspection area.

[0057] (b) Scanning imaging: the mechanical scanning mechanism 2 in the flat structure 1 is driven by the control module 5 to move, and then the linear scanning unit 3 is driven to move up and down, and the millimete...

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Abstract

The invention discloses a millimeter wave security check system and method of a flat structure, and relates to the technical field of security check. The system comprises the flat structure, a lineararray scanning unit, a mechanical scanning mechanism, a detection area, a signal acquisition and processing module connected with a millimeter wave detector, an imaging display module connected with the signal acquisition and processing module, and an automatic identification module connected with the imaging display module; the mechanical scanning mechanism is arranged in the flat structure, is connected with the linear array scanning unit and can drive the linear array scanning unit to move up and down along the flat mechanism; the linear array scanning unit comprises a millimeter wave source, the millimeter wave detector and a main body; the millimeter wave source and the millimeter wave detector are arranged on the main body; the detection area is located in one side of the flat structure; and the main body faces the detection area with the millimeter wave source and the millimeter wave detector. According to the system and method, a synthetic aperture imaging principle and a sparse array are used, the structure is simple and the cost is low; and the flat structure is adopted, detection time is shortened, the security of a person to be detected is guaranteed and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of security inspection, in particular to a millimeter-wave security inspection system and method with a flat plate structure. Background technique [0002] With the sharp increase in the flow of people and terrorist activities in large public places, the demand for human security checks is increasing. However, at present, the security detection methods widely used in public places such as airports and stations are mainly metal detectors, ion spectrometers and X-ray detectors. Metal detectors can only detect metal objects carried by the human body. Ion spectrometers are mainly used to detect whether the human body carries explosives. X-ray detectors are mainly used to detect carry-on luggage and items, and cannot detect human bodies. Therefore, the research on new safe, reliable and fast human security inspection technology has been widely valued. Among them, millimeter wave and terahertz wave technologies ...

Claims

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Application Information

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IPC IPC(8): G01V8/00G01V8/26G01S13/88G01S13/90G01S13/00
CPCG01S13/006G01S13/887G01S13/9094G01V8/005G01V8/26G01S13/90
Inventor 熊凯穆宝忠沈海平
Owner 浙江云特森科技有限公司