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Ultrahigh-frequency RFID (Radio Frequency Identification Device) reader chip

A reader, ultra-high frequency technology, applied in the field of non-contact information identification system

Inactive Publication Date: 2012-05-09
成都雷电微力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing RFID readers are large in size, complex in structure, low in integration, and high in power consumption; using traditional mediation solutions, the signal amplification gain is fixed and cannot adapt to echo signals of different signal strengths; it uses analog filtering technology, Poor anti-interference ability

Method used

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  • Ultrahigh-frequency RFID (Radio Frequency Identification Device) reader chip
  • Ultrahigh-frequency RFID (Radio Frequency Identification Device) reader chip
  • Ultrahigh-frequency RFID (Radio Frequency Identification Device) reader chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] as attached figure 1 In the UHF RFID reader / writer chip of the present invention shown, the RFID reader / writer chip 101 mainly includes a micro-processing unit (MCU) 106, a radio frequency transceiver module 103, and a modulation and demodulation module 102. The radio frequency transceiver module 103 The modulation and demodulation module 102 is connected to a micro-processing unit (MCU) 106, and the micro-processing unit (MCU) 106 is also connected to a flash memory (fash memory), a high-speed cache (SRAM), a reset control circuit (Reset control), Watchdog timer circuit (WDT), timer (Timers), universal asynchronous receiver / transmitter device (UART), serial peripheral interface circuit (SPI), port controller (Port controller), serial bus (I2C), interrupt The controller (Interupt controller) and the power manager (power management) connection. The radio frequency transceiver module 103 is respectively provided with a transmitting port and a receiving port, the transmi...

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PUM

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Abstract

The invention relates to a non-contact information recognition system, in particular to an ultrahigh-frequency RFID (Radio Frequency Identification Device) reader chip working at a frequency of 840-960. The ultrahigh-frequency RFID reader chip mainly comprises an MCU (Microprocessor Control Unit), a radio frequency transceiving module and a modulation-demodulation module, wherein the radio frequency transceiving module is connected with the MCU through the modulation-demodulation module and the MCU is connected with a flash memory, a caching SRAM (Static Random Access Memory), a reset control circuit, a WDT (Watch Dog Timer) circuit, timers, a UART (Universal Asynchronous Receiver / Transmitter), an SPI (Serial Peripheral Interface) circuit, a port controller, a serial bus I2C (Integrated 2 Circuit), an interrupt controller and a power management device through a data bus. The chip provided by the invention has the advantages of small volume, high integration level and strong adaptability and anti-interference ability.

Description

technical field [0001] The invention relates to a non-contact information identification system, in particular to an ultra-high frequency RFID reader chip working at 840-960. Background technique [0002] Radio frequency identification technology is an automatic identification technology that uses radio frequency to conduct non-contact two-way communication to achieve the purpose of identification and exchange data. According to the electromagnetic wave frequency band used, the technology can be divided into three categories: low frequency, high frequency, and ultrahigh frequency. Among them, ultrahigh frequency technology has the advantages of long recognition distance, fast recognition speed, high-speed moving target recognition and large data capacity. [0003] The UHF RFID system mainly includes two parts: the RFID reader and the RFID tag: the RFID reader modulates the baseband signal to be transmitted onto the carrier, sends it to the RFID tag, and then continuously t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K17/00
Inventor 陈亚平关亮中
Owner 成都雷电微力科技股份有限公司
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