本文選題：UHF + RFID　； 參考：《南京郵電大學(xué)》2013年碩士論文

【摘要】：射頻識(shí)別技術(shù)（RFID）作為一種無(wú)線自動(dòng)識(shí)別技術(shù)，已廣泛應(yīng)用在身份標(biāo)識(shí)、交通運(yùn)輸、制造與物流、防偽與公共安全等領(lǐng)域。其中，860-960MHz的超高頻（UHF）RFID技術(shù)以其讀寫(xiě)距離、識(shí)別速度和保密性能方面的優(yōu)勢(shì)成為實(shí)現(xiàn)物聯(lián)網(wǎng)的主要頻段。實(shí)際應(yīng)用環(huán)境的復(fù)雜多變性，對(duì)其性能提出了更高的要求。本文利用軟件無(wú)線電（SDR）將模塊化、標(biāo)準(zhǔn)化和通用化的硬件單元以總線方式連接起來(lái)構(gòu)成通用平臺(tái)，盡可能使用x86處理器和軟件系統(tǒng)來(lái)完成數(shù)字基帶部分的處理，，實(shí)現(xiàn)數(shù)據(jù)的無(wú)線傳輸功能。 本文首先闡述了軟件無(wú)線電中的關(guān)鍵技術(shù)和RFID的工作流程，介紹了其應(yīng)用和發(fā)展現(xiàn)狀。接著分析了UHF RFID標(biāo)準(zhǔn)體系，并重點(diǎn)研究EPC C1G2標(biāo)準(zhǔn)，使用Matlab/Simulink工具對(duì)其前向鏈路和反向鏈路中的調(diào)制與編碼方式進(jìn)行仿真分析。然后介紹了開(kāi)放式軟件無(wú)線電平臺(tái)的硬件部分和軟件架構(gòu)，設(shè)計(jì)收發(fā)通信過(guò)程，利用C++和Python編寫(xiě)通信模塊。將硬件平臺(tái)與x86處理器結(jié)合后，進(jìn)行系統(tǒng)聯(lián)調(diào)測(cè)試，記錄實(shí)驗(yàn)結(jié)果并分析，實(shí)現(xiàn)了頻譜檢測(cè)功能及數(shù)據(jù)的無(wú)線傳輸。 最后，本文對(duì)嵌入式操作系統(tǒng)進(jìn)行分類。在對(duì)UHF RFID數(shù)據(jù)傳輸技術(shù)深入分析的基礎(chǔ)上，在嵌入式Linux下實(shí)現(xiàn)RFID系統(tǒng)最小字庫(kù)的建立，完成界面的顯示工作，成功精簡(jiǎn)了軟件系統(tǒng)，提高了執(zhí)行速度。
[Abstract]:Radio Frequency Identification (RFID), as a wireless automatic identification technology, has been widely used in identification, transportation, manufacturing and logistics, anti-counterfeiting and public safety.UHF RFID technology with 860 ~ 960MHz has become the main frequency band to realize the Internet of things because of its advantages in reading and writing distance, recognition speed and security performance.Because of the complex variability of practical application environment, higher requirements for its performance are put forward.In this paper, the modularized, standardized and universal hardware units are connected to form a common platform by means of the software radio SDR. The x86 processor and the software system are used as far as possible to complete the processing of the digital baseband part.The wireless transmission function of data is realized.In this paper, the key technology of software radio and the working flow of RFID are introduced, and its application and development are introduced.Then, the UHF RFID standard system is analyzed, and the EPC C1G2 standard is studied emphatically. The modulation and coding methods in forward link and reverse link are simulated and analyzed by Matlab/Simulink tool.Then the hardware and software architecture of the open software radio platform are introduced. The communication process is designed and the communication module is written with C and Python.After combining the hardware platform with x86 processor, the system is combined and tested, the experimental results are recorded and analyzed, and the spectrum detection function and the wireless transmission of data are realized.Finally, this paper classifies the embedded operating system.Based on the deep analysis of UHF RFID data transmission technology, the minimum character library of RFID system is built under embedded Linux, the display of interface is completed, the software system is simplified and the execution speed is improved.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP391.44;TP368.1

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本文編號(hào)：1751348