Millimeter wave security check cabin system and security check method

Abstract

The invention discloses a millimeter wave security check cabin system and a security check method. The millimeter wave security check cabin system comprises a security check cabin, a linear array scanning unit, a mechanical scanning mechanism, a signal collecting and processing module, a control module, an imaging display module and an automatic identification module, wherein the security check cabin comprises a cabin body, an entrance and an exit; a detection area is formed in the security check cabin; the linear array scanning unit comprises a plurality of millimeter wave sources, a plurality of millimeter wave detectors and a main body; the millimeter wave sources and the millimeter wave detectors are arranged at intervals to form array structures, and the array structures are installedon the front side and the back side of the main body; the mechanical scanning mechanism can drive the linear array scanning unit to vertically move along the entrance or move between left and right along the entrance; the signal collecting and processing module is connected with the millimeter wave detectors; the control module is connected with the mechanical scanning mechanism; and the imagingdisplay module is connected with the signal collecting and processing module, the control module and the automatic identification module. The millimeter wave security check cabin system adopts a synthetic aperture imaging principle and a spare array, has a simple structure and low cost, adopts a security check cabin structure and guarantees security check fluency and the safety of security check personnel.

Description

technical field [0001] The invention relates to the technical field of security inspection, in particular to a millimeter wave security inspection cabin system and a security inspection method. 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 ...

AI Technical Summary

Problems solved by technology

However, it adopts the open space security inspection method. Once the inspected personnel are found to be hiding dangerous goods, they may use extreme means to resist, which will bring a huge security threat to the security personnel and even ordinary passengers, and it does not have the practicability of security inspection.

[0005] In addition, the patent number is 201610829046.3, titled "A Fast-Passing Millimeter-Wave Human Body Security Inspection System and Method". It is necessary 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 requirements are high, the space is large, the structure is complex, and the manufacturing cost is high; and the inclination angle of the millimeter-wave detector is very high, and a slight deviation will affect the accuracy of the detection

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