Detector for various mediums of card insertion hole of card transaction system

Abstract

The invention discloses a detector for various mediums of a card insertion hole of a card transaction system. The detector comprises a singlechip microcomputer, an infrared line detection module, a magnetic inductive reactance detection module and a human body distributed capacitance detection module, wherein the infrared line detection module, the magnetic inductive reactance detection module and the human body distributed capacitance detection module are connected with the singlechip microcomputer, the infrared line detection module comprises an infrared detection circuit and an optical detection probe, the magnetic inductive reaction detection module comprises a magnetic inductive reaction detection circuit and a magnetic detection probe, the human body distributed capacitance detection module comprises a human body distributed capacitance detection circuit and a charge detection probe, and the singlechip microcomputer is used for receiving a detection signal, performing simulation logic judgment, giving out a judgment result and sending abnormal information to an industrial personal computer if a foreign matter exists. The detector has relatively high foreign matter detection accuracy and precision, and the mis-report probability is reduced.

Description

technical field [0001] The invention relates to the technical field of detection of foreign objects in card slots, in particular to a highly anti-interference and high-precision multiple-medium detector for a card slot in a card transaction system. Background technique [0002] At present, with the development of financial trading machines and tools, criminals have also adopted high-tech card theft methods, and there are more and more card thefts. Once the card information is stolen, it will cause considerable losses to the victimized customers / banks. Therefore, customer card information is increasingly referred to a higher level of security. In order to prevent card information from being stolen, many manufacturers have installed foreign object detectors in the card slot. [0003] However, the existing foreign object detectors generally have high cost, few detection dimensions, or insufficient precision, and the probability of false positives during use is relatively high. ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to meet the requirements of low precision, passive mechanical identification, and high false positive rate of the foreign body detector in the bayonet slot, to improve the detection accuracy, reduce the maintenance cost, and improve the production efficiency, and provide an Optical, magnetic, and electrical three-element card transaction system multi-media detector for the card slot

Images