Based Rfid Wireless Communication Systems, Anti-collision Algorithm Design And Research

RFID (Radio Frequency Identification, RFID) technology, as the basic of a rapid, real-time, accurate acquisition and processing of the high-tech and information standardized, has been recognized as one of the top ten the most important technology of this century.This article is aimed at the DaHongshan copper mine construction projects to analysis and research the technology of Radio Frequency Identification. The DaHongshan copper mine construction projects use the Radio Frequency Identification technology to automatic identification of personnel information, collecting data on the surrounding environment, improve the number of mine construction, to provide a basis for management. This major research project in this article is in the anti-collision algorithm and reader and electronic tags. Through the card reader, RFID research, and to compare and study a variety of anti-collision algorithm, the final figures for Dahongshan copper mine project identifies the main use of hardware, operating frequency, as well as anti-collision algorithm.This article first analysis and research the RFID system for operating principles and standards, and then analysis the two parts of the Radio Frequency Identification system:the reader and electronic tags. This is also the most important radio frequency identification system, the most inevitable anti-collision algorithms have been studied for comparison, and presents a suitable anti-collision algorithms for Dahongshan copper mine construction projects to improve the project work.In the part of the article to analysis the anti-collision algorithm, first of all compare and analysis two different types of anti-collision algorithm the ALOHA algorithm and the binary arithmetic algorithms, and detailed examples of the two algorithms, as well as the improved seven kinds of algorithm variations. Secondly, on the Gen2 and Class1 these two standards in the anti-collision algorithm for analysis.Based on the top part of the electronic tag and reader analysis, as well as various anti-collision algorithm analysis. Determine the use of Nordic companies NewMsg_RF905B readers as a control core and 915MHz for the core part of the system operating frequency. And gives the B-algorithm for dynamic slot ALOHA to be the system anti-collision algorithm.Finally, this article summarizes the study and look at the prospects for future research.