Terahertz imaging passenger luggage rapid security inspection system and dangerous goods detection method thereof

Abstract

The invention relates to a passenger luggage security inspection system, in particular to a terahertz imaging passenger luggage rapid security inspection system and a dangerous goods detection method of the terahertz imaging passenger luggage rapid security inspection system. Terahertz rays are focused on passenger luggage by controlling a two-dimensional transversely-moving platform through a computer, and are received by a detector after being reflected by passenger luggage and focused by a lens, terahertz signals are converted into voltage signals, and images are output through the computer after noise reduction and amplification are conducted on the voltage signals. The problems that during X-ray detection, hurts are great, formed images are not clear, luggage simultaneous detection signals interfere with one another, and a detection device is complex in structure, large in occupied area, low in detection efficiency and high in cost are solved. The terahertz imaging passenger luggage rapid security inspection system and the dangerous goods detection method are wide in application range, accurate in detection, small and exquisite in structure, and capable of simultaneously conducting security inspection on passenger luggage, and the potential safety hazards of public places are reduced on the premise of efficient security inspection.

Description

technical field [0001] The invention relates to a passenger luggage security inspection system, in particular to a terahertz imaging rapid security inspection system for passenger luggage and a method for detecting dangerous goods. Background technique [0002] The security inspection system is widely used in crowded places such as airports, subway stations, railway stations, bus stations, shopping malls, and casinos. The traditional security inspection system mostly checks passengers and luggage separately. Luggage security inspection adopts X-ray imaging technology, and the security inspection equipment used includes security inspection gates, security inspection X-ray machines, etc. Passenger security inspection usually uses hand-held metal detectors. Staff use security inspection equipment to conduct security inspections on passengers and luggage. [0003] Terahertz generally refers to electromagnetic waves with a frequency of 0.1~10THz (1THz=10-12Hz), which is in the ...

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to overcome the deficiencies of the existing security inspection technology, and provide a terahertz imaging rapid security inspection system for passenger luggage and a method for detecting dangerous goods, so as to solve the problem of large damage, unclear images formed during X-ray detection, and baggage The problems of simultaneous detection of signal interference by items, complex structure of detection equipment, large occupied area, low detection efficiency, and high cost; in order to solve the above technical problems, the present invention solves the following technical solutions:

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