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A scanning method for a human body security inspection system using frequency division and space division technology

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 improve the effect of detection accuracy

Inactive Publication Date: 2014-10-22
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 to scan and detect persons to be inspected prolongs the scanning time of persons to be inspected and reduces security inspection efficiency.

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  • A scanning method for a human body security inspection system using frequency division and space division technology
  • A scanning method for a human body security inspection system using frequency division and space division technology
  • A scanning method for a human body security inspection system using frequency division and space division technology

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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 embodiments of the present invention. It should be understood that the components shown in the drawings are schematic and not restrictive, and the features are not drawn to scale. In the respective device drawings, the same reference numerals denote the same components.

[0066] Such as figure 1 and 2 As shown, the human body security inspection system for millimeter-wave active three-dimensional 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 and a second millimeter-wave transceiver 3, and a second millimeter-wave transceiver 3. 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 a second millimeter-wave...

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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 scanning method based on three-dimensional holographic imaging of millimeter-wave active high-speed cylindrical rotation scanning. Background technique [0002] The urgency of international anti-terrorism has put forward many new demands on human body security inspection. First, it is necessary to be able to realize the non-undressing three-dimensional 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. , can detect metal and non-metal items, including guns, knives, explosives, drugs, CDs, cash, liquids, chips, ceramics, etc.; third, it is necessary to reduce the impact of detection methods on human health on the basis of ensuring the above requirements ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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