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Smart card, smart card control method and device and equipment

A smart card and smart card chip technology, applied in the field of smart cards, can solve problems that easily affect the stability of smart card communication, and achieve the effect of improving communication accuracy and ensuring stability

Pending Publication Date: 2018-10-12
SHENZHEN EXCELSECU DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a smart card, a smart card control method, device and equipment, which can solve the technical problem in the prior art that peripheral modules easily affect the stability of smart card communication

Method used

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  • Smart card, smart card control method and device and equipment
  • Smart card, smart card control method and device and equipment
  • Smart card, smart card control method and device and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 of the present invention provides a smart card. figure 1 It is a structural block diagram of the smart card provided by Embodiment 1 of the present invention. like figure 1 As shown, the smart card in this embodiment includes: a coil 1, a power-taking module 2, a power consumption control module 3, a peripheral module 4, and a smart card chip 5;

[0046] The input terminal of the power-taking module 2 is connected to the coil 1 for converting the AC power received from the coil 1 into DC power;

[0047] The output terminal of the power-taking module 2 is connected to the peripheral module 4 through the power consumption control module 3;

[0048] The power consumption control module 3 is used to control the power consumption of the peripheral module 4;

[0049] The smart card chip 5 is connected to the coil 1. When performing non-contact communication, the smart card is placed in the radio frequency field of the card reader. The smart card chip 5 can tak...

Embodiment 2

[0067] Embodiment 2 of the present invention provides a smart card. In this embodiment, on the basis of the technical solution provided in Embodiment 1, the power consumption control is realized through a constant current diode.

[0068] figure 2 It is a schematic circuit diagram of the smart card provided by Embodiment 2 of the present invention. like figure 2 As shown, the smart card in this embodiment includes: a coil 1 , a power acquisition module, a power consumption control module, and a peripheral module 4 .

[0069] In this embodiment, the power consumption control module includes a constant current diode 301 , through which the input current of the peripheral module 4 can be controlled.

[0070] The solution in this embodiment is applicable to the situation where the input voltage is constant (the input voltage has undergone voltage stabilization conversion; or when the load current is constant, the input voltage is also constant).

[0071] Optionally, the power...

Embodiment 3

[0078] Embodiment 3 of the present invention provides a smart card. In this embodiment, on the basis of the technical solution provided in Embodiment 2, a linear voltage regulator is added to realize voltage control.

[0079] image 3 It is a schematic circuit diagram of a smart card provided by Embodiment 3 of the present invention. like image 3 As shown, the smart card in this embodiment includes: a coil 1 , a power acquisition module, a power consumption control module, and a peripheral module 4 .

[0080] In this embodiment, the power consumption control module includes a constant current diode 301 and a linear voltage regulator 304, the input end of the linear voltage regulator 304 is connected to the power-taking module, and the output end is connected to the constant current diode 301 Connection, can realize the function of stabilizing the voltage.

[0081] The linear voltage regulator 304 can adopt an LDO (low dropout regulator, low dropout linear voltage regulato...

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Abstract

The invention provides a smart card, a smart card control method and device and equipment. The smart card comprises a smart card chip, a coil, a power taking module, a power consumption control moduleand a peripheral module, wherein an input end of the power taking module is connected with the coil, and used for converting alternating current received from the coil into direct current; an outputend of the power taking module is connected with the peripheral module through the power consumption control module; and the power consumption control module is used for controlling the power consumption of the peripheral module. The smart card, smart card control method and device and the equipment provided by the invention comprise the smart card chip, the coil, the power taking module, the power consumption control module and the peripheral module. By controlling the power consumption of the peripheral module, the smart card does not interfere with a radio frequency field in the process ofcontactless communication interaction; the stability and reliability of contactless communication are ensured; and the communication accuracy of the smart card is increased.

Description

technical field [0001] The invention belongs to the technical field of smart cards, and in particular relates to a smart card, a smart card control method, device and equipment. Background technique [0002] With the continuous development of electronic technology and the continuous improvement of people's living standards, the application of smart cards is becoming more and more extensive. Smart cards can realize data transmission through contactless channels, and have the advantages of portability, high reliability, and high security. [0003] In the prior art, a smart card usually includes a smart card chip and a coil, and the smart card chip can transmit information with a card reader through the coil. In order to improve the performance of the smart card, peripheral modules can be added to the smart card according to actual needs, such as display module, input module, Bluetooth module, fingerprint module, etc., so that the smart card can realize more functions. In thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/04
CPCH02M7/04H02M1/0003
Inventor 陈柳章
Owner SHENZHEN EXCELSECU DATA TECH
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