本文關(guān)鍵詞： 射頻識(shí)別 UHF RFID 讀寫器 分立元件 FPG　出處：《鄭州大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：射頻識(shí)別技術(shù)是近年興起的采用非接觸方式通信的，通過天線耦合信號(hào)的一種自動(dòng)識(shí)別技術(shù)。該技術(shù)利用射頻信號(hào)的空間耦合特性，并通過所傳遞的信息達(dá)到識(shí)別目的，從而實(shí)現(xiàn)無接觸信息傳遞。從基本原理來說，在低頻段，射頻識(shí)別技術(shù)是基于變壓器耦合模型的（初級(jí)與次級(jí)之間的能量傳遞及信號(hào)傳遞），在高頻段，射頻識(shí)別技術(shù)是基于雷達(dá)探測(cè)目標(biāo)的空間耦合模型（雷達(dá)發(fā)射電磁波信號(hào)，碰到目標(biāo)后攜帶目標(biāo)信息返回雷達(dá)接收機(jī)）。 UHF頻段RFID系統(tǒng)識(shí)別距離遠(yuǎn)、讀寫速度快、卡片成本低、標(biāo)簽尺寸小等很多優(yōu)點(diǎn)，適合未來停車場(chǎng)管理、物資物流、供應(yīng)鏈領(lǐng)域的應(yīng)用，從而可以為未來實(shí)現(xiàn)"物聯(lián)網(wǎng)"工程提供了一種可能的方式。因此，UHF超高頻RFID系統(tǒng)的發(fā)展成為當(dāng)今RFID系統(tǒng)發(fā)展的一個(gè)重點(diǎn)。 本文所設(shè)計(jì)的分立式高頻UHF讀寫器，是基于EPC Gen2和ISO18000-6C協(xié)議標(biāo)準(zhǔn)實(shí)現(xiàn)。讀寫器通過發(fā)送射頻能量，同時(shí)對(duì)回波進(jìn)行檢測(cè)，實(shí)現(xiàn)對(duì)非接觸標(biāo)簽的讀寫操作。其中，，由無線標(biāo)簽返回給讀寫器的信息發(fā)送方式采用FM0編解碼的通信格式實(shí)現(xiàn)。 超高頻RFID識(shí)別技術(shù)是一個(gè)蓬勃發(fā)展的，一個(gè)新的技術(shù)應(yīng)用，它不僅借助于微波技術(shù)和電磁學(xué)理論，還包含通信原理知識(shí)以及半導(dǎo)體集成電路技術(shù)，是一個(gè)綜合多學(xué)科的技術(shù)。因此，對(duì)UHF RFID技術(shù)的認(rèn)識(shí)和應(yīng)用研究具有深遠(yuǎn)的理論意義。 目前在我國，UHF射頻識(shí)別技術(shù)還正在發(fā)展階段，尤其是在UHF頻段的讀寫器技術(shù)上，我們國家還沒有形成真正的核心技術(shù)。但是，無源RFID技術(shù)在未來物聯(lián)網(wǎng)技術(shù)中的地位可能非常重要，可是，我們的研究水平與國外的水平差距很大。 在仔細(xì)研究UHF超高頻射頻識(shí)別技術(shù)的基本原理、相關(guān)標(biāo)準(zhǔn)，發(fā)展歷程、發(fā)展現(xiàn)狀的基礎(chǔ)上，本文做了以下工作： 1．介紹了UHF射頻識(shí)別技術(shù)的相關(guān)知識(shí)； 2．描述了項(xiàng)目的開發(fā)流程，完成UHF RFID讀寫器系統(tǒng)方案； 3．詳細(xì)介紹了分立UHF無源RFID讀寫器的組成； 4．完成了相關(guān)讀寫器的原理圖設(shè)計(jì)以及PCB設(shè)計(jì)； 5.描述了讀寫器的軟件架構(gòu)和工作原理。
[Abstract]:Radio frequency identification (RFID) technology is a kind of automatic identification technology which uses non-contact communication and coupled signals by antenna in recent years. This technology utilizes the spatial coupling characteristics of radio frequency signals. And through the transmission of information to achieve the purpose of identification, so as to achieve contactless information transmission. From the basic principle, in the low frequency band. Radio Frequency Identification (RFID) technology is based on transformer coupling models (primary and secondary energy transfer and signal transfer) at high frequencies. Radio frequency identification (RFID) technology is based on the spatial coupling model of radar detection target (radar transmits electromagnetic wave signal and carries the target information back to the radar receiver after coming into contact with the target. UHF band RFID system has many advantages, such as long recognition distance, fast reading and writing speed, low card cost, small label size and so on. It is suitable for the future application of parking lot management, material logistics and supply chain. Therefore, the development of UHF UHF UHF RFID system has become an important point in the development of RFID system. The discrete high frequency UHF reader designed in this paper is based on the standard of EPC Gen2 and ISO18000-6C protocol. The reader transmits RF energy. At the same time, the echo is detected to read and write the non-contact tag, in which the information sent back by the wireless tag to the reader is implemented in the FM0 codec communication format. UHF RFID recognition technology is a booming, a new technology application, not only with the help of microwave technology and electromagnetics theory, but also includes the knowledge of communication principle and semiconductor integrated circuit technology. Therefore, the understanding and application of UHF RFID technology has profound theoretical significance. At present in our country UHF RFID technology is still in the development stage, especially in the UHF band reader technology, our country has not formed a real core technology. Passive RFID technology may play an important role in the future Internet of things technology, but our research level is far from that of foreign countries. On the basis of studying the basic principle, related standards, development course and current situation of UHF UHF RFID technology, this paper has done the following work: 1. The related knowledge of UHF RFID technology is introduced. 2. The development process of the project is described, and the system scheme of UHF RFID reader is completed. 3. The composition of discrete UHF passive RFID reader is introduced in detail. 4. The schematic design and PCB design of the related reader are completed. 5. The software architecture and working principle of the reader are described.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP391.44

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相關(guān)期刊論文 前1條

1 張崇,于曉琳,劉建平;單片2.4GHz無線收發(fā)一體芯片nRF2401及其應(yīng)用[J];國外電子元器件;2004年06期

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