Paper money safety line detection method and device

Abstract

A paper money safety line detecting device includes a magnetic detecting mechanism (1) and a control mechanism. Said magnetic detecting mechanism (1) includes a magnetic head module (11), a magnetic head (111) is arranged in the magnetic head module (11), and the magnetic head (111) is movably arranged on the direction in parallel with the extending direction of the paper money safety line. The control mechanism is connected with the magnetic detecting mechanism (1), controls the magnetic head (111) to move along the extending direction of the paper money safety line when the paper money safety line aims at the magnetic head (111), reads the magnetic data in the paper money safety line, and judges the authenticity of the paper money based on the read magnetic data. A paper money safety line detecting method comprises: controlling the magnetic head (111) to move along the extending direction of the paper money safety line when the paper money safety line aims at the magnetic head (111) and reading the magnetic data; and judging the authenticity of the paper money based on the read magnetic data. In above device and method, only narrower magnetic head (111) is needed to move along the direction of the paper money safety line and read the magnetic data.

Description

technical field [0001] The invention relates to a banknote anti-counterfeiting device, and more particularly, to a banknote security line detection method and device. Background technique [0002] The commonly used fifth edition RMB authenticity detection device is to place banknotes horizontally in the banknote detection device, and the magnetic security line of the banknotes is in the same direction as the banknotes are transported, such as figure 1 As shown, the corresponding banknote security thread detection method is as follows: banknotes are placed horizontally, and the conveying mechanism 2' transports the banknotes. When the banknotes pass through the magnetic head 3', the security thread passes through the magnetic head 3' from the beginning to the end, thereby generating a series of magnetic signals, thus, The magnetic head 3' can detect the magnetic security on the banknote from beginning to end, quantitatively interpret the magnetic data in the magnetic security...

AI Technical Summary

Problems solved by technology

[0003] However, when using this banknote security thread detection method and device, since the security threads of banknotes of different denominations have different positions on the banknotes, even the positions of the security threads of banknotes of the same denomination are not the same on the banknotes, so a wider width is required. Only the magnetic head on the surface can cover the security lines at different positions on various banknotes, resulting in higher equipment costs

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