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Radio-frequency identification reader/writer

A radio frequency identification and reader technology, applied in instruments, inductive record carriers, computing, etc., can solve the problems of single identification frequency and low intelligence of readers, and achieve the effect of enhancing flexibility and realizing localization.

Inactive Publication Date: 2007-08-08
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The invention provides a radio frequency identification reader, which aims to solve the problems of single recognition frequency and low degree of intelligence of the existing reader

Method used

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Embodiment Construction

[0025] As shown in FIG. 1 , in order to enhance the information processing capability of the system, the present invention adopts a dual-core system architecture of microprocessor + digital signal processor. The microprocessor uses Intel PXA255 embedded CPU as the core of information processing, and uses TI company's TMS320VC5416 digital signal processor for real-time information processing.

[0026] The CPU is mainly responsible for data interaction with the digital signal processor and Ethernet interface, manages storage devices such as random access memory and flash memory, and realizes communication with general-purpose input and output devices and serial port expansion devices.

[0027] The CPU is connected to the flash memory and random access memory through its own storage management unit interface. A bootloader, an embedded operating system kernel, a device driver, a graphical user interface, an anti-collision calculation algorithm of a digital signal processor, and a ...

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Abstract

It's a RFID reader, a data processing device for reading and writing, aiming at resolving existing reader with single frequency less intelligent includes microprocessors, memory, programmable logic devices, I / O interface, digital signal processors, analog RF, wireless communications modules and panels. RF circuit simulation includes N different band RF circuit simulation, N >= 2, natural number; the invention with frequency identification technology, software radio technology, wireless communication technology and intelligent information processing capacity together can not only realize tags of the existing electronic identification but also do the localization of information processing and accomplished distance interactive through wired or wireless.

Description

technical field [0001] The invention belongs to a data reading and writing and processing device, in particular to a multi-band radio frequency identification electronic tag reading and writing and information processing device. Background technique [0002] At present, due to the non-uniform radio frequency identification standards, different frequency band standards have emerged for various industry applications, mainly including: 13.56MHz, 915MHz, 2.4GHz and other frequency bands for future development. However, the existing RFID (Radio Frequency Identification, radio frequency identification) readers on the market mainly work on a single frequency. To read and write electronic tags with different frequencies, it is necessary to select a reader that works on the corresponding frequency. [0003] In addition, in the existing mode, the radio frequency identification reader is an isolated device, which only includes a digital signal processor and a radio frequency analog cir...

Claims

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Application Information

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IPC IPC(8): G06K7/00G06K17/00
Inventor 程文青杜旭刘威徐晶许炜余江黄建赵梦欣
Owner HUAZHONG UNIV OF SCI & TECH
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