Paper currency safety line magnetic coding detection device and method

Abstract

The invention discloses a paper currency safety line magnetic coding detection device and a paper currency safety line magnetic coding detection method which are used for detecting the magnetic code of the safety line of a paper currency which is fed from the short edge of the paper currency. According to the paper currency safety line magnetic coding detection device, a magnetic coding detection device comprising a plurality of magnetic probes is arranged on a transfer channel; the length direction of the safety line of the paper currency is vertical to the movement direction of the paper currency; the plurality of magnetic probes are distributed from the length direction of the safety line; and the plurality of magnetic probes are arranged obliquely relative to the length direction of the safety line in a manner that the same angle is formed between each magnetic probe and the length direction of the safety line. When the safety line of the paper currency pass through the magnetic coding detecting device, the plurality of magnetic probes carry out sectional acquisition on the magnetic code of the safety line of the paper currency simultaneously; a plurality of magnetic code sections are spliced, so that the complete magnetic code of the safety line can be obtained. The above detection device is compact in structure and occupies a small space in the transfer channel; a corresponding detection area is narrow; and detection time and data processing time are short. The detection method has the advantages of few steps, high detection accuracy and high efficiency.

Description

technical field [0001] The invention relates to a detection device for magnetic coding of banknote security threads, and at the same time relates to a detection method for magnetic coding of banknote security threads, belonging to the technical field of financial equipment. Background technique [0002] Security thread is a kind of anti-counterfeiting marker often used in various securities such as banknotes. After the security thread is magnetized, it carries magnetically encoded anti-counterfeiting information. In order to obtain and detect these magnetically encoded anti-counterfeiting information, it is necessary to use a detection instrument. [0003] Most of the existing banknote processing equipment, including banknote counting machines, small sorting machines, etc., adopt the horizontal banknote feeding method of long-side banknote feeding, in which the length direction of the security line is the same as the moving direction of banknotes; An audio magnetic head is ...

AI Technical Summary

Problems solved by technology

However, using a magnetic sensor to collect the magnetic code of the banknote security thread in the above-mentioned way requires a large installation space and signal detection space inside the banknote processing equipment, which is not conducive to the design of the transmission channel for transporting banknotes

Moreover, using an audio magnetic head to collect the magnetic code of the banknote security thread, the detection time used when the security thread passes is long, and the data processing time lags, resulting in low detection efficiency for the banknote security thread

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