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Through type metal detecting system

A metal detection and channel technology, which is applied in the field of metal detection systems, can solve the problem of uneven distribution of the detection magnetic field, the inability to accurately distinguish between multiple small metal objects and larger metals, and the inability to distinguish small non-ferromagnetic metal substances from electromagnetic interference And other issues

Inactive Publication Date: 2010-08-18
郭有军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of the uneven distribution of the magnetic field detected by the pass-through metal detector in the prior art, the present invention provides a pass-through metal detection system that detects a uniform distribution of the magnetic field
In addition, the present invention further solves the technical problems that the pass-through metal detector in the prior art cannot accurately distinguish multiple small metal objects from larger metals, cannot distinguish small non-ferromagnetic metal substances, and has poor anti-electromagnetic interference ability.

Method used

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  • Through type metal detecting system
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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Please refer to FIG. 1 and FIG. 2 , which are respectively a system block diagram and a schematic block diagram of an embodiment of the through-type metal detection system of the present invention. The pass-through metal detection system includes a central processing unit I1, a signal processing circuit I5 whose output end is connected to the input end of the central processing unit I1, a programmable logic processor I2 whose input end is connected to the output end of the central processing unit I1, and whose input end is connected to the output end of the central processing unit I1. The output end of the programmable logic processor I2 is connected to the oscillation circuit I3, and the coil group I4 is connected to the output end of the oscillation circuit I3. In addition, the detection system also includes a display module to provide multi-...

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Abstract

The invention relates to a passing through type metal probe system that includes signal process circuit, CPU, oscillating circuit and coil assembly that includes emitting coil and receiving coil. The invention could equally probe magnetic field and has good anti electromagnetic interference ability. It could determine the approximate location of the metal object.

Description

【Technical field】 [0001] The invention relates to a metal detection system, in particular to an intelligent through-type metal detection system. 【Background technique】 [0002] The main function of the pass-through metal detection system is to accurately detect hidden prohibited metal objects (such as firearms and knives carried by individuals). In recent years, pass-through metal detection systems have been widely used in airports, schools, courts, gymnasiums, railway stations, passenger stations and other public places. During security inspections, pass-through metal detection systems have become necessary equipment. [0003] For the detection of prohibited metal objects, the operation of the existing pass-through detection system has at least four defects: first, in the pass-through detection system, the original detection magnetic field generated by the transmitting-receiving coil has a working blind spot. When carrying prohibited metal objects through these blind spots...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/11
Inventor 郭有军
Owner 郭有军