Magnetic imaging method and device

A magnetic imaging and image technology, applied in the field of magnetic imaging methods and devices, can solve the problems of poor identification accuracy, high probability of misjudgment and misjudgment, and achieve the effect of improving accuracy and reducing the probability of misjudgment and misjudgment

Inactive Publication Date: 2015-02-11
BEIJING JIAYUE TONGLEJI ELECTRONICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This method of identifying the authenticity of banknotes has a high probability of misjudgment and misjudgment, resulting in poor identification accuracy.

Method used

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  • Magnetic imaging method and device
  • Magnetic imaging method and device
  • Magnetic imaging method and device

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Embodiment Construction

[0042] In order for those skilled in the art to better understand the technical solution of the present invention, the magnetic imaging method and device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0043] The magnetic imaging device described in the following embodiments is used to detect the detected medium (such as banknotes or checks, etc.), so as to distinguish the authenticity of the detected medium. Magnetic marks of different shapes and sizes are set at different positions in the detected medium, and the magnetic marks include strong magnetic marks, weak magnetic marks, or only one of the two. The magnetic imaging device is to intuitively obtain the position of the magnetic mark in the detected medium through the magnetic signal of the magnetic mark, and set the shape and size of the magnetic mark.

[0044] figure 1 It is a functional block diagram of a magnetic imaging device according to an embodi...

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Abstract

The invention provides a magnetic imaging method used for obtaining a magnetic image of a detected medium in which magnetic identifications are arranged. The method includes the following steps: providing a magnetic sensor with a plurality of output channels; using the magnetic sensor to scan the detected medium so as to obtain output voltage signals output by the plurality of output channels at each time; and according to the voltage signals, obtaining the magnetic image of the detected medium. The magnetic imaging method is capable of reducing a probability of error erroneous judgment and misjudgment so that the authenticity identification precision is improved. The invention also provides a magnetic imaging device.

Description

technical field [0001] The invention belongs to the field of precision measurement, and in particular relates to a magnetic imaging method and device. Background technique [0002] At present, the anti-counterfeiting technologies applied to banknotes mainly include anti-counterfeiting technologies such as magnetism, fluorescence, watermark, letterpress, etc. Banknote detectors distinguish the authenticity of banknotes through corresponding detection principles for different anti-counterfeiting technologies. However, in recent years, the simulation ability of criminals has been continuously improved, forcing the anti-counterfeiting technology to be continuously updated, and at the same time, higher requirements are placed on the ability to distinguish counterfeit money. [0003] For magnetic anti-counterfeiting technology, the traditional method is to set magnetic anti-counterfeiting marks on certain positions of banknotes. The banknote detector can identify the authenticity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20G07D7/04
Inventor 姚明高时启猛刘乐杰
Owner BEIJING JIAYUE TONGLEJI ELECTRONICS
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