RMB safety line anti-fake detection system and detection method

Abstract

The invention provides an RMB safety line anti-fake detection system and detection method. The system comprises a magnetic head, a metal safety line detector and a magnetic sensor, wherein the metal safety line detector and the magnetic sensor are electrically connected with the magnetic head respectively; the metal safety line detector generates an alternating magnetic field through the magnetichead, the magnetic field can generate eddy current in an RMB metal safety line, the eddy current can also generate an induction alternating magnetic field to influence an original magnetic field in turn, so that a phase position of the original magnetic field changes, and nonmetal does not change, thereby being capable of detecting whether or not the material of the safety line is metal. The magnetic sensor generates the magnetic field through the magnetic head, the RMB safety line cuts a magnetic induction line to generate induction current through the magnetic head, true or false of anti-fake information of magnetic characteristics of the safety line is read through the induction current; when the material of the safety line is the metal and the anti-fake information of the magnetic characteristics is true, a detection result is output, it is judged that RMB is true, otherwise, the RMB is false. The RMB safety line anti-fake detection system and detection method have the advantages that through two approaches, the authentic identification capacity of a money detector is improved, the advanced level of the field is achieved, and the popularization and application prospects are better.

Description

technical field [0001] The invention relates to the field of electronic devices, in particular to an anti-counterfeit detection system and detection method for a RMB security thread. Background technique [0002] The 5 yuan, 10 yuan, 20 yuan, 50 yuan, and 100 yuan in circulation in my country are all buried with a metal security thread with magnetic anti-counterfeiting feature information recorded. When the ordinary currency detector is working, it reads the magnetic anti-counterfeiting feature information recorded on the security line of the RMB through its assembled magnetic head, and after being amplified by the circuit, it is sent to the central processing unit (CPU) of the currency detector for processing. The pulse width, frequency, spacing and other parameters of the pulse waveform can be used to determine the authenticity and denomination size of the RMB. However, at present, no matter whether the magnetic heads of traditional banknote detectors at home and abroad a...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a RMB security thread anti-counterfeiting detection system and detection method for the above-mentioned defects of the prior art, aiming at solving the problem that the RMB detection equipment in the prior art cannot distinguish that the material of the RMB security thread is metal It is still non-metal, and it is impossible to read the phase anti-counterfeiting features entered in the currency, which causes inconvenience to production and life.

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