Integrated long magnetic strip sensor for paper money authentic identification and positioning method

Abstract

The invention discloses an integrated long magnetic strip sensor for paper money authentic identification and a positioning method. Two protrusions facing the same direction are fixedly arranged at the two ends of a support of the integrated long magnetic strip sensor. A long magnetic strip sensor body is arranged between the two bulges through a magnetic head plate. The magnetic head plate is connected to the support through at least two fixing columns. Moreover, the connecting line between the tops of the two projections is parallel to the bottom surface of the long magnetic stripe sensor body along the length direction. In mounting, only the top ends of the two bulges are required to be in contact with the outer rings of the two transmission shaft bearings respectively, the bottom surface of the long magnetic strip sensor body is ensured to be parallel to the side surface of the transmission bristle wheel. Therefore, the paper money is allowed to pass through the bottom surface of the long magnetic stripe sensor body in parallel, the magnetic authentic identification points on the paper money are sampled and detected, the accuracy of a reading result of magnetic induction is ensured, and the accuracy of an authentic identification result of the paper money is ensured.

Description

technical field [0001] The invention relates to the field of financial equipment, in particular to an integrated long magnetic strip sensor and a positioning method for banknote authentication. Background technique [0002] With the development of social economy, the circulation of banknotes is also increasing, resulting in more use of various financial instruments to process banknotes. But at the same time, the problem of counterfeit banknotes has also begun to appear, so there are more and more financial instruments with the ability to detect counterfeit banknotes. The previous financial equipment did not have a clear and unified technical index, but mostly adopted industry standards or enterprise standards as the design basis. Beginning in 2018, led by the People's Bank of China, with the participation of many banks and enterprises, clear performance indicators have been put forward for financial equipment, mainly reflected in improving the speed of counting money, impro...

AI Technical Summary

Problems solved by technology

If the long magnetic strip sensor is not parallel to the driving hair wheel, the banknotes driven by the driving hair wheel cannot pass through the long magnetic strip sensor in parallel, and the result of the magnetic detection will be incorrect. Accurate, even when the same banknote is facing different sides, the strength of the magnetic signal collected by the long magnetic strip sensor may be different

This will obviously lead to the failure of counterfeit identification

[0005] However, in actual installation, when the bracket is fixed to the frame of a financial machine tool, in order to adjust the distance between the long magnetic strip sensor and the rotating hair wheel, the hole used to position the long magnetic strip sensor on the frame It is a waist-shaped hole. When manually installed, the long magnetic strip sensor is prone to offset, so it is difficult to ensure that the distance between the two ends is the same as that of the rotating hair wheel, and the long magnetic strip sensor cannot be accurately positioned, so the long magnetic strip sensor cannot be guaranteed. parallel to the drive shaft

[0006] At the same time, the surface of the long magnetic strip sensor and the magnetic head plate are fixed by welding or bonding. In the process of welding or bonding, the solder or bonding material is prone to uneven distribution. The long magnetic strip sensor and the magnetic head There are often uneven spacing between the boards, so that the long magnetic strip sensor cannot be assembled flat, resulting in errors; due to the uneven thickness of the magnetic head boards in the manufacturing process, there will inevitably be unequal distance errors, In the prior art, the fixing method between the magnetic head plate and the support will cause the two errors to be superimposed on each other, and the installation error between the support and the transmission shaft will lead to long magnetic Accurate installation of bar sensors is very difficult and inefficient

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