Metal safety detection door

A security door and metal technology, which is applied in the direction of sound wave re-radiation, measuring devices, instruments, etc., can solve the problems of low metal detection accuracy, difficulty in properly grasping system detection sensitivity, and easy missed detection of metal objects, etc.

Inactive Publication Date: 2015-05-27
湖南上东智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this metal security door has the following disadvantages: 1), the detection accuracy of metal is low, and the detection sensitivity of the system is difficult to properly grasp. If the system sensitivity is too low, it is easy to miss small metal objects; if the system sensitivity is too high , then false alarms will be generated for small-sized metals such as metal zippers and buttons on human clothes; 2) The positioning accuracy of metals is low, and only the approximate location information of hidden metal objects can be given, and the size of the object cannot be sensed. and shape, it is common to detect metal objects but pass them normally, or to detect false alarms when metal objects normally worn on the body are detected, resulting in a decrease in security inspection efficiency

Method used

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Experimental program
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Effect test

Embodiment 1

[0021] As shown in the figure, a metal security inspection door proposed by the present invention includes two side door frames 1 and a mobile detection board 2. The mobile detection board 2 is provided with a probe array composed of a plurality of telescopic metal probes 4. The mobile detection board 2 A driving mechanism 3 for driving the movement detection plate 2 to move toward the inner side of the side door frame 1 is provided.

[0022] The telescopic metal probe 4 includes a fixed cabin 41 and a movable cabin 42 coaxially sleeved on the outer surface of the fixed cabin 41. The fixed cabin 41 is provided with a photoelectric detection circuit (not shown) and a metal detection circuit (not shown). The head of the cabin 42 is provided with a metal detection coil 421 connected to the metal detection circuit, the photoelectric detection circuit is connected with a light emitting diode (not shown) and a photodiode (not shown), and the side of the fixed cabin 41 is provided wit...

Embodiment 2

[0029] The structure of the security gate provided by this embodiment is the same as that of Embodiment 1. The difference is that the telescopic probe array adopts a non-uniform array structure, and the probe array can be arranged according to the wearing conditions of the person. The size and arrangement density of the probes are no longer uniform. The situation is arranged flexibly. For the parts of the back and lower limbs of the human body that generally do not have zippers or buttons, larger probes can be used to obtain thicker detection information; Dense probes to obtain finer detection information. In this way, the detection accuracy and system complexity can be balanced, and the system cost can be reduced. In this specific embodiment, the probe arrays set on the first mobile detection board and the second mobile detection board adopt a non-uniform array structure, specifically: the first mobile detection board is equipped with telescopic metal probes with a large det...

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PUM

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Abstract

The invention discloses a metal safety detection door. The metal safety detection door comprises two side door frames. The metal safety detection door is characterized in that a movable detection board is arranged on at least one of the side door frames; the movable detection board is provided with a movable driving mechanism, a probe array consisting of a plurality of telescopic metal probes is arranged on the movable detection board, and the probe array is electrically connected with a data acquisition system and an imaging system. The metal safety detection door has the advantages that the probe array consisting of a plurality of telescopic metal probes obtains accurate metal detection information and probe displacement information, so that the accurate positioning of human bodies carrying metal and the three-dimensional display of metal forms are realized, and wrong alarms are reduced.

Description

technical field [0001] The invention relates to the field of security inspection, in particular to a metal security inspection door. Background technique [0002] With the rapid development of economy and society, the current population mobility in our country has been greatly enhanced. In order to maintain public safety, standard channel-type security gates have been installed in most public places such as airports, railway stations, bus stations, theaters, stadiums, and subway entrances. Used to check hidden metal objects on the human body. In addition, enterprises that produce precious metals are also equipped with metal security doors to protect the property safety of enterprises. [0003] At present, the widely used metal security door mainly adopts the method of multi-position independent detection. The door panels on both sides are composed of transmitting coils, detection coils and zeroing coils. According to the principle of ergonomics, the door body is divided int...

Claims

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Application Information

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IPC IPC(8): G01V3/10
Inventor 张瑞华张巧文
Owner 湖南上东智能科技有限公司
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