Rotary door type radar imaging security detector

Abstract

The invention discloses a revolving door radar imaging security inspection device, which includes a radar imaging security inspection system, and the radar imaging security inspection system includes a computer, a network port analysis module, an FPGA control processing module, a first driving branch, and a second driving branch , a signal generator, a transmitting antenna, a receiving antenna, a signal processing device, a signal acquisition device and an A / D converter; the first driving branch and the second driving branch are respectively provided with a first input end, a second input end, a second An output terminal and a second output terminal; the signal processing device is provided with a first input terminal, a second input terminal, a first output terminal and a second output terminal; the signal acquisition device is provided with a first input terminal, a second input terminal, a second input terminal An output terminal and a second output terminal. The invention utilizes the characteristics of low radiation in the millimeter wave frequency band and the ability to penetrate clothing, which is not only suitable for human body security inspection, but also can detect weapons hidden under clothing.

Description

technical field [0001] The invention relates to a security inspection instrument, in particular to a revolving door radar imaging security inspection instrument. Background technique [0002] In recent years, with the continuous occurrence of terrorist violence, mass incidents and the use of high-tech explosive devices, the international security situation has become more severe. In my country, public security detection is an important means to prevent various terrorist attacks in a targeted manner. , has gradually received high attention from the government and all walks of life. Today, the rapid development of civil aviation, high-speed rail, and subways across the country has greatly driven the demand for public security inspections, making the industry enter a new stage of development. The development of security inspection technology is inseparable from major international terrorist attacks. It can be said that terrorist attacks have changed people's lives to a certain e...

AI Technical Summary

Problems solved by technology

[0003] At present, the security inspection in public places is divided into two parts: baggage inspection and human safety inspection. X-ray imaging is the main method for luggage inspection. The main body of inspection is packages, luggage, coats, shoes, etc. carried by people. The dangerous goods are hidden in it, and the human body security check is mainly realized through the body search of the security check personnel or the close-up inspection with a small metal detector. This method is not only time-consuming but also violates the privacy of the inspected personnel. Contact human body security inspection equipment, because it can only judge the presence or absence of metal and cannot give more detailed information on suspicious items, resulting in a high false alarm rate, can no longer meet the current needs, and the market needs to be more comprehensive, more humane, and faster Effective means of human body security inspection. In recent years, governments of various countries have vigorously carried out technology and product research and development in the field of new human body security inspection.

[0004] At present, human body imaging technologies are mainly X-ray fluoroscopy imaging and X-ray backscatter imaging. X-ray fluoroscopy imaging is not suitable for general inspection of the public. X-ray backscatter imaging can realize rapid Effectively check out contraband and dangerous goods hidden under clothing, including metal / non-metal knives, plastics, ceramics, liquids, explosives, drugs, etc. The main disadvantage is the generation of X-ray radiation, which will absorb a certain amount of X-ray radiation during human security inspection X-ray radiation

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