Remote shielding alarm system for preventing IC card information from being stolen

Abstract

The invention relates to a remote shielding alarm system for preventing IC card information from being stolen. The system is formed by two major parts: a shielding card and a mobile phone APP software system. The shielding card is formed by a shielding signal module, a bluetooth communication module, a signal processing module and a power supply module, wherein the shielding signal module, the bluetooth communication module, the signal processing module and the power supply module are connected mutually via data signal lines; and the shielding signal module is provided with a high-frequency signal generator, a signal reception and emission antenna circuit arranged on the signal generator and a frequency-selecting circuit. The remote shielding alarm system has the following advantages: 1) the shielding distance is long: a good shielding effect can be obtained within a distance of 0-30MM of the shielding card and the IC card; and 2) the system has an alarm function: the shielding card is equipped with an LED lamp, and when lawless persons are around the IC card and carry out illegal stealing activity, the LED lamp on the system device immediately emits light and gives an alarm, and alarm signals, such as messages and the like, are sent to a mobile phone through bluetooth.

Description

technical field [0001] The invention relates to a remote shielding alarm system for preventing IC card information from being stolen, belonging to the technical field of electronic information. Background technique [0002] With the continuous development of IC card applications, especially the use of the NFC function of mobile phones, cardholder information often leaks for no reason. Card information. This illegal behavior makes cardholders deeply doubt the safety of IC cards, which seriously dampens the enthusiasm of paying with cards. [0003] In order to prevent the cardholder's information from being stolen by criminals for profit, the card sleeve is mainly made of metal materials such as aluminum foil on the market. Although this method is feasible, it is inconvenient to carry and use, and the protection effect is not good (only the card and the card sleeve Completely stacked together to work), when criminals appear around to steal information, the cardholder does no...

AI Technical Summary

Problems solved by technology

[0003] In order to prevent the cardholder's information from being stolen by criminals for profit, the card sleeve is mainly made of metal materials such as aluminum foil on the market. Although this method is feasible, it is inconvenient to carry and use, and the protection effect is not good (only the card and the card sleeve completely stacked together to work), when criminals appear around to steal information, the cardholder does not know the existence of danger, if the card is not with him, the cardholder has no way of knowing that his information has been stolen

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