Scanning method for human body security check system utilizing frequency division and space division

A technology of human body security inspection and scanning method, which is applied in the direction of using re-radiation, radio wave measurement system, radio wave reflection/re-radiation, etc. It can solve the problems of reducing security inspection efficiency and prolonging the scanning time of persons to be inspected, so as to improve security inspection efficiency 、Avoid radiation interference and shorten security inspection time

Inactive Publication Date: 2012-03-28
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0009] However, the existing security inspection systems are all single-switch antenna arrays. Using a single switch array antenna t...

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  • Scanning method for human body security check system utilizing frequency division and space division
  • Scanning method for human body security check system utilizing frequency division and space division
  • Scanning method for human body security check system utilizing frequency division and space division

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Embodiment Construction

[0065] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and with the help of the embodiments of the present invention. It is to be understood that the various elements shown in the figures are schematic and not restrictive and that the various features are not drawn to scale. In each device drawing, the same reference numerals denote the same components.

[0066] like figure 1 and 2 As shown, the human body security inspection system for millimeter wave active 3D holographic imaging of the present invention includes a cylindrical main body frame 1, a control computer 13, a control device 4, a first millimeter wave transceiver 2, a second millimeter wave transceiver 3, and a third millimeter wave transceiver. A first millimeter-wave switch antenna array 7 connected to a millimeter-wave transceiver 2, a second millimeter-wave switch antenna array 8 connected to the second millimeter-wave transceiver ...

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Abstract

The present invention discloses a scanning method combing a human body security check system with frequency division and space division to avoid opposite radiation interference. During scanning, the operating frequency of a detection signal provided by a first millimeter wave transceiver is different with that of a detection signal provided by a second millimeter wave transceiver at the same moment; and in addition, during scanning, the detection altitude of an antenna unit in a first millimeter wave switching antenna array is different with that of an antenna unit in a second first millimeter wave switching antenna array at any moment. The method avoids the opposite radiation interference in switching antenna arrays on both sides of a millimeter wave active three-dimensional holographic imaging human body security check system, so as to improve the level of imaging definition.

Description

technical field [0001] The invention relates to a human body security inspection system. More specifically, the present invention relates to a human body security inspection system and a scanning method based on three-dimensional holographic imaging of millimeter wave active high-speed cylindrical rotation scanning. Background technique [0002] The urgency of the international anti-terrorism form has put forward new requirements for human body security inspection. First, it is necessary to realize non-stripping 3D holographic imaging detection of objects covered by human clothing, so as to improve the efficiency of identifying suspicious objects; second, it is necessary to expand detection capabilities. , capable of detecting metal and non-metal items, including guns, knives, explosives, drugs, CDs, cash, liquids, chips, ceramics, etc.; hazard. [0003] The existing technical means that can be used for human body security inspection include: metal detection, X-ray imaging...

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Application Information

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IPC IPC(8): G01V9/00G01S13/89G01S7/02
Inventor 年丰温鑫张冰方维海王暖让杨于杰冯克明
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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