射頻識(shí)別技術(shù)簡(jiǎn)介畢業(yè)論文外文翻譯

1、附錄 A 英文文獻(xiàn)Radio Frequency Identification Technology I ntroductionRFID is the abbreviation for Radio Frequency Identification, called electronics label .RFID recognition is a non-contact automatic identification technology, rf signal through its automatic target recognition and access to relevant data

2、, identify work without manual intervention, it can work in various environments. RFID technology can identify high-speed moving objects and can identify multiple tags, the operation is fast and convenient.Accenture laboratory's chief scientist sir alex ferguson feels RFID is a breakthrough tech

3、nology: "first, can identify a very specific objects, rather like the code that can identify class objects; second, the use of rf, can read data through external materials, and bar code must rely on laser to read information; third, can also read on to multiple objects, and bar code can only re

4、ad one by one. In addition, store of information is also very big."The basic component of RFIDThe most basic RFID system consists of three parts:Tag:Tag consists of components and chips, each Tag has only electronic coding, adhere to the object for identifying target;Reader:read (sometimes also

5、 can write) label information equipment,it can be designed for portable or fixed;Antenna: Transmit radio frequency signals between in the label and reader.The basic principle of RFID technologyThe basic principle of RFID technology is not complex: Label into the field, Receive radio frequency signal

6、s from reader collision, with all the energy stored in a chip of the product information (passive tag, there is no source label or labels), Or actively to send a frequency signals （active tag and to label or labels）；to read information and understanding of the decoder after the central information s

7、ystems tocarry out the relevant data processing.Development of RFID technologySanford Bernstein cristiano, according to analysts estimate the retailing company, by adopting the RFID, wal-mart can save $8.35 billion each year, mostly because of the purchase of artificial view does not need to save th

8、e cost of labor code. Although some analysts think $8 billion in the digital too optimistic, but undoubtedly, RFID help solve the problem: the two biggest retail commodities and loss (broken by theft and supply chain was unsettled and loss of products),now a wal-mart, stealing a loss is almost 20 bi

9、llion dollars, if a legitimate business turnover can achieve this number, can in American 1,000 enterprise's list of top first 694. Research organizations estimate, This RFID technology can help to reduce the level of 25% reduction and stock.RFID technologys typical applicationLogistics and supp

10、ly managementManufacturing and assemblyAirline baggage handlingMail/express parcelA document tracking/library managementAnimal identity tagsMovementAccess control/electronic ticketsAutomatic charge. RoadExplanation of termsmicro wave: wavelength of 0.1-100 centimeters or frequency in 1-100GHz electr

11、omagnetic wave.radiation frequency: usually microwave.electronic tags: stored data object code identification tag, also called rf CARDS.passive tags: without power and internal by receiving microwave energy work.active tags: by internal batteries work labels.micro wave antenna: used for launching an

12、d receive a signal.read device: Used to read the labels in electronic gramming device: for electronic data written to the label or labels for the stored data.beam bracketing: refers to the antenna beam range of microwave irradiation range launch power.tag capacity: The label of programming c

13、an be written in the number of digits or logical.A - Biz -automatic identification technology application case frameASN - senior freight noticeBIS - commercial information systemDA - shipment notificationEAN -European articles coding EPCTM - electronic productsONS - objects name resolution servicesP

14、ML - entity markup languageUCC - unity coding committeeUML - unified modeling languageWorking workflow of RFID systemsThe system of basic workflow is: reader through the antenna send certain frequencies of rf signals, when the rf card to enter the antenna working area induced current, rf cards gain

15、energy to be activated, rf cards will own coding information through the card built-in transmitting antenna send out, System receiving aerial from rf card from the carrier signal, the antenna of a regulator to the reader, the reader to receive a signal and demodulates and decodes to the system to de

16、al with the relevant ； the main system based on logic, determine the legality of smart cards, in different settings make the appropriate treatment and control signals control anddirection of movement. in the coupling between inductors and electromagnetic way (), communication process (FDX, HDX, SEQ)

17、、 From rf card to the reader of data transmission of the load method (modulation, reverse scattering, high time harmonics) and frequency, from the contact method transmission a fundamental difference, but all the reader in principle, and the decision of the design structures are very similar. all th

18、e reader is a simple matter of high frequency and control unit two basic module. high frequency interface includes both transmitters and receivers, its functions include: to produce high-frequency transmit power to start and provide rf card energy. To launch signal used to send data to rf CARDS, Rec

19、eive and demodulation of high frequency signals from rf CARDS. Different rfid system with some difference frequency interface design, the system frequency inductive coupling interface diagram shown.quartzoscillatormodulatoroutputstageamplifierantTXDRXDoutputamplifierband passstageChart A1 RFID syste

20、m of workflowReaders of the control unit features include: communicate with the application software, Application software and to execute the order of radio frequencies ； control and communication from the principle of the lord - ()； signal of the decoding. to some specific systems are the collision

21、, the algorithm to rf card reader, and to the transfer of data encryption and decryption, as well as on radio frequencies and the reader's authentication for an additional function.The rfid system is a key and distance of the parameters. At present, the price of long-distance rfid system is very

22、 expensive, thus to improve their reading for distanceof the method is very important. Influence factors of distance and RF card reader, including antenna working frequency of RF output power, reader's reception sensitivity, RF card power, antenna and the resonant circuit Q value, antenna, RF ca

23、rd reader and the direction of the coupling, and RF card itself of energy and send information energy etc. Most of the system of writing is read and write different, read the distance is about 40% to 80%.SummaryRFID technology USES radio-frequency mode in the reader and rf card no contact between th

24、e bidirectional data transmission, in order to achieve target recognition and data exchange. And the tradition of code, magnetic and IC card, compared with non-contact, rf card reading speed, wear, not by environmental impact, long life, easy to use and has the characteristics of anti-collision func

25、tion, can handle more CARDS. Abroad, rfid technology has been widely used in industrial automation, commercial automation, transportation control, etc.附錄 B 漢語(yǔ)翻譯射頻識(shí)別技術(shù)簡(jiǎn)介RFID 是 Radio Frequency Identification 的縮寫(xiě)，即射頻識(shí)別，俗稱(chēng)電子標(biāo)簽。RFID 射頻識(shí)別是一種非接觸式的自動(dòng)識(shí)別技術(shù)，它通過(guò)射頻信號(hào)自動(dòng)識(shí)別目標(biāo)對(duì)象并獲取相關(guān)數(shù)據(jù)，識(shí)別工作無(wú)須人工干預(yù)，可工作于各種惡劣環(huán)境。RFID 技術(shù)可

26、識(shí)別高速運(yùn)動(dòng)物體并可同時(shí)識(shí)別多個(gè)標(biāo)簽，操作快捷方便。埃森哲實(shí)驗(yàn)室首席科學(xué)家弗格森認(rèn)為 RFID 是一種突破性的技術(shù)： " 第一，可以識(shí)別單個(gè)的非常具體的物體， 而不是像條形碼那樣只能識(shí)別一類(lèi)物體； 第二，其采用無(wú)線電射頻， 可以透過(guò)外部材料讀取數(shù)據(jù)， 而條形碼必須靠激光來(lái)讀取信息；第三，可以同時(shí)對(duì)多個(gè)物體進(jìn)行識(shí)讀，而條形碼只能一個(gè)一個(gè)地讀。此外，儲(chǔ)存的信息量也非常大。 "RFID 的基本組成部分最基本的 RFID 系統(tǒng)由三部分組成：標(biāo)簽：由耦合元件及芯片組成， 每個(gè)標(biāo)簽具有唯一的電子編碼， 附著在物體上標(biāo)識(shí)目標(biāo)對(duì)象；閱讀器：讀取 (有時(shí)還可以寫(xiě)入 )標(biāo)簽信息的設(shè)備， 可設(shè)計(jì)

27、為手持式或固定式；天線：在標(biāo)簽和讀取器間傳遞射頻信號(hào)。RFID 技術(shù)的基本工作原理RFID 技術(shù)的基本工作原理并不復(fù)雜：標(biāo)簽進(jìn)入磁場(chǎng)后，接收解讀器發(fā)出的射頻信號(hào)，憑借感應(yīng)電流所獲得的能量發(fā)送出存儲(chǔ)在芯片中的產(chǎn)品信息 （ Passive Tag，無(wú)源標(biāo)簽或被動(dòng)標(biāo)簽） ，或者主動(dòng)發(fā)送某一頻率的信號(hào)（ Active Tag，有源標(biāo)簽或主動(dòng)標(biāo)簽）；解讀器讀取信息并解碼后，送至中央信息系統(tǒng)進(jìn)行有關(guān)數(shù)據(jù)處理。RFID 技術(shù)的發(fā)展據(jù) Sanford C. Bernstein 公司的零售業(yè)分析師估計(jì)，通過(guò)采用RFID，沃爾瑪每年可以節(jié)省83.5 億美元，其中大部分是因?yàn)椴恍枰斯げ榭催M(jìn)貨的條碼而節(jié)省的勞動(dòng)力成

28、本。盡管另外一些分析師認(rèn)為80 億美元這個(gè)數(shù)字過(guò)于樂(lè)觀，但毫無(wú)疑問(wèn)， RFID 有助于解決零售業(yè)兩個(gè)最大的難題：商品斷貨和損耗（因盜竊和供應(yīng)鏈被攪亂而損失的產(chǎn)品） ，而現(xiàn)在單是盜竊一項(xiàng)，沃爾瑪一年的損失就差不多有 20 億美元，如果一家合法企業(yè)的營(yíng)業(yè)額能達(dá)到這個(gè)數(shù)字， 就可以在美國(guó) 1000 家最大企業(yè)的排行榜中名列第 694 位。研究機(jī)構(gòu)估計(jì)，這種 RFID 技術(shù)能夠幫助把失竊和存貨水平降低 25%。RFID 技術(shù)的典型應(yīng)用物流和供應(yīng)管理生產(chǎn)制造和裝配航空行李處理郵件 /快運(yùn)包裹處理文檔追蹤 /圖書(shū)館管理動(dòng)物身份標(biāo)識(shí)運(yùn)動(dòng)計(jì)時(shí)門(mén)禁控制 /電子門(mén)票道路自動(dòng)收費(fèi)術(shù)語(yǔ)解釋微 波 ：波長(zhǎng)為 0.1 1

29、00 厘米或頻率在 1100GHZ 的電磁波。射 頻 ：一般指微波。電子標(biāo)簽：以電子數(shù)據(jù)形式存儲(chǔ)標(biāo)識(shí)物體代碼的標(biāo)簽，也叫射頻卡。被動(dòng)式電子標(biāo)簽：內(nèi)部無(wú)電源、靠接收微波能量工作的電子標(biāo)簽。主動(dòng)式電子標(biāo)簽：靠?jī)?nèi)部電池供電工作的電子標(biāo)簽。微波天線：用于發(fā)射和接受微波信號(hào)。讀出裝置：用于讀取電子標(biāo)簽內(nèi)電子數(shù)據(jù)。閱 讀 器 ：用于讀取電子標(biāo)簽內(nèi)電子數(shù)據(jù)。編 程 器 ：用于將電子數(shù)據(jù)寫(xiě)入電子標(biāo)簽或查閱電子標(biāo)簽內(nèi)存儲(chǔ)數(shù)據(jù)。波束范圍：指天線發(fā)射微波的照射功率范圍。標(biāo)簽容量：電子標(biāo)簽編程時(shí)所能寫(xiě)入的字節(jié)數(shù)或邏輯位數(shù)。a-Biz自動(dòng)識(shí)別技術(shù)的應(yīng)用案例框架ASN 高級(jí)貨運(yùn)通知BIS商業(yè)信息系統(tǒng)DA 發(fā)貨通知EAN 歐洲物品編碼組EPCTM產(chǎn)品電子碼ONS對(duì)象名解析服務(wù)PML 實(shí)體標(biāo)記語(yǔ)言UCC統(tǒng)一編碼委員會(huì)UML 統(tǒng)一建模語(yǔ)言RFID 系統(tǒng)的工作流程系統(tǒng)的基本工作流程是： 閱讀器通過(guò)發(fā)射天線發(fā)送一定頻率的射頻信號(hào)， 當(dāng)射頻卡進(jìn)入發(fā)射天線工作區(qū)域時(shí)產(chǎn)生感應(yīng)電流， 射頻卡獲得能量被激活； 射頻卡將自身編碼等信息通過(guò)卡內(nèi)置發(fā)