本文選題：射頻識(shí)別　切入點(diǎn)：ISO/IEC　出處：《電子科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：作為一種高效率的自動(dòng)識(shí)別與數(shù)據(jù)采集技術(shù),射頻識(shí)別技術(shù)近幾年在國(guó)內(nèi)外飛速發(fā)展,其應(yīng)用范圍也在逐漸擴(kuò)大,各種RFID應(yīng)用產(chǎn)品產(chǎn)量正如雨后春筍般爆發(fā)式增長(zhǎng)。在這樣的應(yīng)用背景下,對(duì)RFID技術(shù)的研究已然成為當(dāng)今的熱點(diǎn),而由于UHF頻段的RFID讀寫器具有讀寫速度快、讀取距離遠(yuǎn)、可讀多標(biāo)簽等優(yōu)點(diǎn),使其適合相當(dāng)多的應(yīng)用場(chǎng)景,因此在此頻段的RFID技術(shù)的研究更是重中之重。但是,我國(guó)RFID產(chǎn)業(yè)的發(fā)展總體上相對(duì)落后于世界先進(jìn)水平,尤其是在UHF頻段的研究由于其技術(shù)較為復(fù)雜而導(dǎo)致我國(guó)在該頻段的技術(shù)發(fā)展較為滯后。因此,設(shè)計(jì)一款具有自主知識(shí)產(chǎn)權(quán)的UHF RFID讀寫器會(huì)對(duì)我國(guó)RFID技術(shù)的發(fā)展起到一定的推動(dòng)作用。本文的主要內(nèi)容是利用FPGA設(shè)計(jì)并實(shí)現(xiàn)基于ISO/IEC18000-6C協(xié)議的UHF RFID讀寫器數(shù)字基帶系統(tǒng)。為此,本文主要進(jìn)行了以下幾項(xiàng)工作:首先,對(duì)當(dāng)前RFID技術(shù)的發(fā)展歷程和趨勢(shì)進(jìn)行了簡(jiǎn)要介紹,介紹了當(dāng)前幾種主流的RFID標(biāo)準(zhǔn),并對(duì)ISO/IEC 18000-6C協(xié)議進(jìn)行了詳細(xì)介紹,從物理層的編碼解碼技術(shù)、調(diào)制解調(diào)技術(shù),到標(biāo)簽識(shí)別層的閱讀器命令和標(biāo)簽的狀態(tài),再到各種防碰撞技術(shù)的原理。然后,在分析了讀寫器系統(tǒng)的整體架構(gòu),并確定了讀寫器的設(shè)計(jì)技術(shù)指標(biāo)的基礎(chǔ)上,詳細(xì)介紹讀寫器數(shù)字基帶系統(tǒng)的設(shè)計(jì)過(guò)程,包括發(fā)送鏈路、接收鏈路和控制模塊的設(shè)計(jì),其中發(fā)送鏈路包括PIE編碼、升余弦滾降濾波、希爾伯特濾波以及校驗(yàn)部分,接收鏈路包括信道濾波、Miller/FM0解碼、解校驗(yàn)等部分。讀寫器軟件設(shè)計(jì)主要介紹了協(xié)議處理模塊和底層代碼的設(shè)計(jì)。接著在第四章介紹了系統(tǒng)關(guān)鍵模塊的具體電路實(shí)現(xiàn),并對(duì)各模塊功能進(jìn)行了modelsim仿真驗(yàn)證。并且介紹了讀寫器軟件的實(shí)現(xiàn)。之后在FPGA上實(shí)現(xiàn)了UHF讀寫器數(shù)字基帶系統(tǒng)。最后,對(duì)讀寫器系統(tǒng)進(jìn)行了測(cè)試,將各模塊測(cè)試結(jié)果與仿真結(jié)果進(jìn)行對(duì)比和分析,經(jīng)過(guò)實(shí)際的測(cè)試和分析,讀寫器基帶系統(tǒng)各模塊和系統(tǒng)的整體功能得到了驗(yàn)證。
[Abstract]:As a highly efficient automatic identification and data acquisition technology, RFID technology has developed rapidly in recent years at home and abroad, and its application scope is also gradually expanding. The output of all kinds of RFID applications is exploding. Under such application background, the research on RFID technology has become a hot spot nowadays, and because of the fast reading and writing speed and long reading distance of RFID reader in UHF band, The advantages of readable multi-label make it suitable for quite a lot of application scenarios, so the research of RFID technology in this frequency band is the most important. However, the development of RFID industry in our country generally lags behind the advanced level of the world, in general, the development of RFID industry in our country lags behind the advanced level of the world on the whole. Especially in the UHF frequency band, because of the complexity of the technology, the development of the technology in this frequency band in China is lagging behind. The design of a UHF RFID reader with independent intellectual property rights will promote the development of RFID technology in China. The main content of this paper is to design and implement the UHF RFID reader digital baseband system based on ISO/IEC18000-6C protocol. The main work of this paper is as follows: firstly, the development course and trend of current RFID technology are briefly introduced, several mainstream RFID standards are introduced, and the ISO/IEC 18000-6C protocol is introduced in detail. From the physical layer of coding and decoding technology, modulation and demodulation technology, to the tag recognition layer of the reader command and the status of the label, and then to the principles of various anti-collision technologies. Then, in the analysis of the overall structure of the reader system, The design process of the reader digital baseband system is introduced in detail, including the design of the transmission link, the receiving link and the control module, in which the transmission link includes PIE coding. Raised cosine roll down filter, Hilbert filter and check part, receive link includes channel filter / Miller / FM 0 decoding, The software design of the reader mainly introduces the protocol processing module and the design of the underlying code. Then, in chapter 4th, it introduces the specific circuit implementation of the key modules of the system. The functions of each module are verified by modelsim simulation, and the realization of the reader software is introduced. Then, the digital baseband system of UHF reader is implemented on FPGA. Finally, the reader system is tested. The test results of each module and the simulation results are compared and analyzed. Through the actual test and analysis, the whole function of each module and system of the reader baseband system is verified.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP391.44;TP311.52

【共引文獻(xiàn)】

相關(guān)期刊論文 前6條

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本文編號(hào)：1563432