RFID device based on 802.11 b

Abstract

This invention relates to a RFID device based on 802.11b including a microprocessor, a radio communication module based on 802.11b, a reset circuit, a real time clock, a crystal oscillator, a storage, a reader, a supply management. a label, a buzzer and system bus expansion, in which, said terminal integrates the CPU hardware platform, a RFID RF device and a radio communication protocol of 802.11b of the inserted operation system-uClinux and ARM structure, the reader transmits RF signals of certain frequencies by the antenna, when the label enters into the antenna working region, it generates induced current, the energy got by the label is ectivated to send its own code information to outside by a built-in emission antenna, the system receiving antenna receives carrier wave signals from the label to be transferred to the reader via an antenna regulator, which demodulates and decodes the signals and sends them to the background master system to be stored in a user data storage region and finally to be processed by 802.11b radio communication protocol to be transferred to the PC unit of the user for further analysis and process.

Description

technical field [0001] The invention belongs to the technical field of electronic data processing, in particular to a radio frequency identification device. Background technique [0002] 802.11b is a wireless communication protocol commonly used in the world. RFID (Radio Frequency Identification), or "Radio Frequency Identification Technology", is a non-contact automatic identification technology. It uses radio frequency signals and uses a non-contact method to automatically identify target objects and obtain relevant data without manual intervention. As a wireless version of the barcode, the RFID system has the advantages of waterproof, antimagnetic, high temperature resistance, long service life, large reading distance, encrypted data on the label, large storage data capacity, and free change of stored information, etc. that the barcode does not have. Work in various harsh environments. Its application will greatly reduce the cost of logistics transportation and inventor...

AI Technical Summary

Problems solved by technology

At present, there are very few enterprises with independent intellectual property rights products, the total number does not exceed 35, and the price is high, the communication cost is high, the operation is not easy, and it requires high configuration conditions and high quality requirements for users, which is not suitable for my country's national conditions.

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