【摘要】：射頻識別(Radio Frequency Identification,RFID)技術(shù)是一種通過無線射頻方式實現(xiàn)雙向數(shù)據(jù)通信的非接觸式自動識別技術(shù)。在RFID技術(shù)中,無源RFID以其識別速度快、數(shù)據(jù)存儲容量大和高可靠性等獨特優(yōu)勢而被廣泛應(yīng)用于物資全資可視、物流供應(yīng)鏈管理、資產(chǎn)管理、交通運輸管理、貴重商品防偽防盜、自動化工業(yè)生產(chǎn)及人員管理等領(lǐng)域。無源RFID標(biāo)簽是無源RFID系統(tǒng)的核心,低功耗低成本超大規(guī)模集成電路的迅速發(fā)展,大大降低了無源RFID標(biāo)簽的能耗要求和價格,使得無源RFID系統(tǒng)得以快速發(fā)展。隨著無源RFID系統(tǒng)的大規(guī)模應(yīng)用,人們對無源RFID標(biāo)簽性能也有了更高的要求,使得標(biāo)簽性能測試的重要性突顯出來。論文基于《GJB7377.1-2011軍用射頻識別空中接口第1部分:800/900MHz參數(shù)》這一自主RFID標(biāo)準(zhǔn),結(jié)合ISO/IEC18046-3和EPC C1G2兩大標(biāo)簽性能測試標(biāo)準(zhǔn),對標(biāo)簽性能的測試方法展開研究。從雷達(dá)散射原理出發(fā),分析了超高頻無源RFID系統(tǒng)的基本工作原理,研究了RFID系統(tǒng)中的電磁能量傳輸和反向散射調(diào)制技術(shù)。標(biāo)簽芯片作為標(biāo)簽的核心部件,其性能的優(yōu)劣直接決定了標(biāo)簽性能的高低,因此對標(biāo)簽芯片性能的測試非常有意義,論文分析了標(biāo)簽芯片對標(biāo)簽性能的影響,提出了一種新穎的標(biāo)簽芯片靈敏度測試方法。論文根據(jù)標(biāo)簽的實際應(yīng)用情況,合理提出了標(biāo)簽讀寫距離、方向性、抗干擾能力等關(guān)鍵測試項,并制定了相應(yīng)的測試方法。基于RFID協(xié)議仿真器、矢量信號發(fā)生器、實時頻譜分析儀、射頻功率計等通用儀器搭建了標(biāo)簽性能測試系統(tǒng),完成了標(biāo)簽性能的測試和分析。改進(jìn)了標(biāo)簽芯片靈敏度測試和標(biāo)簽讀寫距離測試的方法。
[Abstract]:Radio Frequency Identification (Radio Frequency Identification,RFID) technology is a non-contact automatic identification technology which realizes bidirectional data communication by radio frequency mode. In RFID technology, passive RFID has been widely used in material, supply chain management, asset management, transportation management, anti-counterfeiting and anti-theft for its unique advantages, such as fast identification, large data storage capacity and high reliability. Automation of industrial production and personnel management and other areas. Passive RFID tag is the core of passive RFID system. With the rapid development of low power and low cost VLSI, the energy requirement and price of passive RFID tag are greatly reduced, which makes the passive RFID system develop rapidly. With the large-scale application of passive RFID system, people have higher requirements for the performance of passive RFID tags, which makes the importance of tag performance testing prominent. Based on the GJB7377.1-2011 military RFID air interface part 1: 800/900MHz parameters, this paper studies the test method of tag performance based on the independent RFID standard, combining ISO/IEC18046-3 and EPC C1G2 tag performance test standards. Based on the principle of radar scattering, the basic working principle of UHF passive RFID system is analyzed, and the electromagnetic energy transfer and backscatter modulation techniques in RFID system are studied. Tag chip as the core component of tag, its performance directly determines the performance of tag, so it is very meaningful to test the performance of tag chip. This paper analyzes the impact of tag chip on label performance. A novel sensitivity testing method for tag chips is proposed. According to the actual application of label, the key test items such as reading and writing distance, directivity and anti-jamming ability are put forward, and the corresponding test methods are established. Based on RFID protocol simulator, vector signal generator, real-time spectrum analyzer, radio frequency power meter and other universal instruments, a label performance testing system is built, and the tag performance testing and analysis are completed. The methods of tag chip sensitivity test and tag read / write distance test are improved.
【學(xué)位授予單位】：國防科學(xué)技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP391.44
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本文編號：2336103