外文参考文献

1、JIU JIANG UNIVERSITY中英文文献翻译题 目RFID射频识别技术概述院系信息科学与技术学院专业计算机科学与技术姓 名武晓杰班级学号A121238O五年十二月RFID basic principleWhat is the RFIDRFID is the abbreviation for Radio Frequency Identification, called electronics label . What is the RFID technologyRFID recognition is a non-contact automatic identification tech

2、nology, rf signal through its automatic target recognition and access to relevant data, 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.Accentur

3、e laboratory's chief scientist sir alex ferguson feels RFID is a breakthrough technology: "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 r

4、ead information; third, can also read on to multiple objects, and bar code can only read one by one. In addition, store of information is also very big."What is the basic component of RFIDThe most basic RFID system consists of three parts: Tag:Tag con sists of comp onents and chips, each Tag ha

5、s only electr onic cod ing, adhere to the object for identifiering target; Reader:read (sometimes also 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 technology is w

6、hatThe basic principle of RFID technology is not complex: Label into the field, Receive radio frequency signals 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 signa(ls active

7、tag and to label or labels ) ； to read information and understanding of the decoder after the central information systems to carry out the relevant data processing.What makes retailers so highly RFIDSanford Bernstein cristiano, according to analysts estimate the retailing company, by adopting the RF

8、ID, wal-mart can save $ billion each year, mostly because of the purchase of artificial view does not need to save the 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

9、(broken by theft and supply chain was unsettled and loss of products),now a wal-mart, stealing a loss is almost 20 billion 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 tech

10、nology can help to reduce the level of 25% reduction and stock.The typical application of RFID technology is whatLogistics and supply managementManufacturing and assemblyAirline baggage handlingMail/express parcelA document tracking/library managementAnimal identity tagsMovementAccess control/electr

11、onic ticketsAutomatic charge. RoadRFID automatic recognition term explanationmicro wave: wavelength of centimeters or frequency in 1-100GHZ electromagnetic wave. radiati on freque ncy: usually microwave. electro nic tags: stored data object code ide ntificati on tag, also calledrf CARDS. passive tag

12、s: without power and internal by receiving microwave energy work. active tags: by internal batteries work labels. microwave antenna: used for launching and receive a signal. read device: Used to read the labels in electronic data. programming device:for electronic data written to the label or labels

13、 for the stored data.beam bracketing: refers to the antenna beam range of microwave irradiation range launch power. tag capacity: The label of programming can be written in the number of digits or logical.A - Biz -utomatic identification technology application case frameASN - senior freight noticeBI

14、S - commercial information systemDA - shipment notificationEAN -European articles coding EPCTM - electronic productsONS - objects name resolution servicesPML - entity markup languageUCC - unity coding committeeUML - unified modeling languageSystem composition and working principleThe most basic RFID

15、 system consists of three parts:Tag:Tagconsists of components and chips, each Tag has only electronic coding, adhere to the object for identifiering target; Reader:read (sometimes also can write) label information equipment,it canbe designed for portable or fixed; Antenn a:Tra nsmit radio freque ncy

16、 sig nals betwee n in the label and reader.Some systems have readers RS232 or RS485 interface with external computer (upper computer system) connection, and exchange data.The system of basic workflow is: reader through the antenna send certain frequencies of rf signals, when the rf card to enter the

17、 antenna working area induced current, rf cards gain 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 s

18、ignal and demodulates and decodes to the system to deal 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 and direction of movement. in the coupling between inductors and electro

19、magnetic way (), communication process (FDX, HDX, SEQ)、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 decis

20、ion of the design structures are very similar. all the 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

21、. To launch signal used to send data to rf CARDS, Receive 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.Readers of the con trol unit features in elude: c

22、om muni cate with the applicati on software, Application software and to execute the order of radio frequencies ； control and com muni cati on from the prin ciple of the lord - () ； sig nal of the decodi ng. to some specific systems are the collision, the algorithm to rf card reader, and to the tran

23、sfer of data encryption and decryption, as well as on radio frequencies and the reader's authe nticati on for an additi onal function.The rfid system is a key and dista nee of the parameters. At prese nt, the price of Iong-distance rfid system is very expensive, thus to improve their reading for

24、 distance of the method is very importa nt. In flue nce factors of dista nce and RF card reader, i ncludi ng antenna working frequency of RF output power, reader's reception sensitivity, RF card power, antenna and the resonant circuit Q value, antenna, RF card reader and the directi on of the co

25、upli ng, and RF card itself of en ergy and send in formati on en ergy etc. Most of the system of writing is read and write different, read the distance is about 40% to 80%.Theory an alysisRFIDtech nology USESradio-freque ncy mode in the reader and rf card no con tact betwee n the bidirectio nal data

26、 tran smissi on, in order to achieve target recog niti on 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 function, can handle

27、 more CARDS. Abroad, rfid technology has been widely used in industrial automation, commercial automation, transportation control, etc.RFID基本原理什么是 RFIDRFID是 Radio Frequency Identification的缩写，即射频识别，俗称电子标签。 什么是RFID技术RFID射频识别是一种非接触式的自动识别技术，它通过射频信号自动识别目标 对象并获取相关数据，识别工作无须人工干预，可工作于各种恶劣环境。RFID技术可识别高速运动物体并可

28、同时识别多个标签， 操作快捷方便。埃森哲实验室首席科学家弗格森认为 RFID是一种突破性的技术："第一，可以识 别单个的非常具体的物体，而不是像条形码那样只能识别一类物体；第二，其采用 无线电射频，可以透过外部材料读取数据，而条形码必须靠激光来读取信息；第三， 可以同时对多个物体进行识读，而条形码只能一个一个地读。此外，储存的信息量 也非常大。 "什么是RFID的基本组成部分最基本的RFID系统由三部分组成：标签：由耦合元件及芯片组成，每个标签具有唯一的电子编码，附着在物体上标 识目标对象；阅读器：读取 （有时还可以写入 ）标签信息的设备，可设计为手持式或固定式；天线：在标

29、签和读取器间传递射频信号。RFID技术的基本工作原理是什么RFID 技术的基本工作原理并不复杂：标签进入磁场后，接收解读器发出的射频信号，凭借感应电流所获得的能量发送出存储在芯片中的产品信息（Passive Ta，g 无源标签或被动标签），或者主动发送某一频率的信号（Active Tag有源标签或主动标 签）；解读器读取信息并解码后，送至中央信息系统进行有关数据处理。 是什么让零售商如此推崇 RFID据Sanford C. Bernstein公司的零售业分析师估计，通过采用RFID,沃尔玛每年可 以节省亿美元，其中大部分是因为不需要人工查看进货的条码而节省的劳动力成本。尽管另外一些分析师认为8

30、0亿美元这个数字过于乐观，但毫无疑问，RFID有助于解 决零售业两个最大的难题： 商品断货和损耗 （因盗窃和供应链被搅乱而损失的产品） 而现在单是盗窃一项，沃尔玛一年的损失就差不多有 20 亿美元，如果一家合法企业 的营业额能达到这个数字， 就可以在美国 1000家最大企业的排行榜中名列第 694位。 研究机构估计，这种RFID技术能够帮助把失窃和存货水平降低 25%。RFID技术的典型应用是什么物流和供应管理生产制造和装配航空行李处理 邮件/快运包裹处理 文档追踪 /图书馆管理 动物身份标识 运动计时 门禁控制 / 电子门票 道路自动收费RFID自动识别术语解释微 波：波长为一100厘米或频

31、率在1 100GHZ的电磁波。射频：一般指微波。 电子标签 ： 以电子数据形式存储标识物体代码的标签，也叫射频卡。 被动式电子标签： 内部无电源、靠接收微波能量工作的电子标签。 主动式电子标签： 靠内部电池供电工作的电子标签。 微波天线 ： 用于发射和接受微波信号。 读出装置 ： 用于读取电子标签内电子数据。 阅 读 器 ： 用于读取电子标签内电子数据。 编 程 器 ： 用于将电子数据写入电子标签或查阅电子标签内存储数据。 波束范围 ： 指天线发射微波的照射功率范围。标签容量 ：电子标签编程时所能写入的字节数或逻辑位数。a-Biz自动识别技术的应用案例框架ASN-高级货运通知BIS-商业信息系统DA发货通知EAN 欧洲物品编码组EPCTM产品电子码ONS-对象名解析服务PML实体标记语言UCC-统一编码委员会UML统一建模语言系统组成和工作原理最基本的RFID系统由三部分组成：1. 标签（Tag,即射频卡）：由耦合元件及芯片组成，标签含有内置天线，用于和射频天线间进行通信。2. 阅读器：读取 （在读写卡中还可以写入 ）标签信息的设备。3. 天线：在标签和读取器间传递射频