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Integrated double-frequency card reader device

A card reader and microprocessor technology, applied in the direction of cooperating devices, instruments, computer parts, etc., can solve the problems of increasing faulty users, increasing system complexity, increasing the volume and cost of the card reader, etc. The effect of reducing size, increasing system reliability, simplifying data processing and complexity

Inactive Publication Date: 2016-01-20
YIWU SCI & TECH INST CO LTD OF ZHEJIANG UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only increases the volume and cost of the entire card reader, is not conducive to the upgrade and transformation of the existing system, but also increases the complexity of the system, which is easy to cause failure and also increases the cumbersome operation of the user.

Method used

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  • Integrated double-frequency card reader device

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] refer to figure 1 , an integrated dual-frequency card reader device, including a power supply circuit, a microprocessor circuit, a liquid crystal display circuit, an induction antenna, a read-write circuit, a JTAG interface circuit, a STM32_ISP download circuit and a Wiegand signal circuit; wherein,

[0024] The power supply circuit includes a +12V to +5V power supply circuit and a +5V to +3V power supply circuit;

[0025] Described microprocessor circuit comprises 32 processors STM32F101 based on ARM, clock signal generating circuit, reset circuit and dual-frequency card reader selection circuit, and described dual-frequency card reader selection circuit comprises jumper interface J4, J5, J6 , one end of the jumper interface J4, J5, J6 is respectively connected to the microprocessor PB12, PB13, PB14, and the other end of the jumper interface J4, J5, J6 is grou...

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Abstract

Provided is an integrated double-frequency card reader device composed of a microprocessor STM32F101 circuit, a power circuit, a liquid crystal display circuit, an induction antenna and read-write circuit, a JTAG interface circuit, a STM32_ISP download circuit, and a Wiegand signal circuit. The induction antenna and read-write circuit comprises a 13.56 read card module and a 2.4G read card module. A jumper interface J6 selects a real operation module. The microprocessor STM32F101 circuit exchanges data with an external radiofrequency application via the read card module and transmits Wiegand information to a master control board via the Wiegand circuit, and transmits corresponding display information to the liquid crystal display circuit to be displayed. The STM32_ISP download circuit and the JTAG interface circuit upgrade and debug slave computer system software. The power circuit supplies power to all parts of the card reader device. The integrated double-frequency card reader device is high in reliability and can be expanded highly efficiently.

Description

technical field [0001] The invention relates to a radio frequency card reader device integrating 13.56MHZ and 2.4GHZ dual frequency bands, especially providing dual frequency band reading and writing support for multi-band and multi-application mobile phone radio frequency applications such as mobile payment SIMpass and RF-SIM. Background technique [0002] There are three main types of traditional RF card readers for the frequency bands, one is high-frequency RF card mainly 915MHz, 2.4GHz, 5.8GHz and so on. High-frequency systems are used where long read-write distances and high read-write speeds are required. The second type is that the frequency of the intermediate frequency radio frequency card is mainly 13.56MHz. The intermediate frequency system is used for access control, consumption, public transportation and application systems that need to transmit a large amount of data; the third type is that the low frequency system is mainly used for short-distance and low-cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00
Inventor 王涌甘少聪李宏建
Owner YIWU SCI & TECH INST CO LTD OF ZHEJIANG UNIV OF TECH
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