Security Packaging安全包装

We have all purchased product that the checkout clerk had to pass over a special electronic pad before they placed the item into the bag.我们都购买了产品，结帐员必须通过一个特殊的电子垫放在面前，他们的项目入包里。

Why did the clerk have to do that?为什么办事员必须这样做吗？

Chances are, they were deactivating an electronic device attached to, or hidden within, the product you purchased.机遇是，他们被关闭电子设备重视，或隐藏在，你的产品购买。

Source tagging is the process of adding a small electronic device to a product in order to deter shrinkage (theft).来源标记的过程中增加一个小型电子器件的产品，以阻止收缩（盗窃） 。 The device sets off a store alarm if it is not deactivated at the time of checkout.该装置集了商店报警如果不能停用的时候结帐。

To everyone but would-be thieves, source tagging creates a win-win-win situation: the devices allow retailers to focus on honest customers instead of worrying about shoplifters; product manufacturers are being provided more shelf space for items that are normally considered high shrink; and customers are able to handle product that is normally stowed out of sight.每个人，但将成为小偷，源标签创造一个双赢的局面：在设备允许零售商将重点放在客户而不是诚实的担忧商店扒手;产品制造商正在提供更多的货架空间的项目，通常认为是高萎缩;和客户能够处理的产品，通常是存放消失在视线之外。 The benefits so far outweigh any negatives that industry experts expect more and more product to contain these devices.这样的好处远远大于任何底片，工业专家预计，越来越多的产品包含这些设备。

But who will apply these devices?但谁将适用于这些设备？ Most retailers want the tags to be applied during the manufacturing or packaging process instead of at the retail level.大多数零售商想要的标签，以适用于在生产或包装过程而不是在零售层面。 Not only does it eliminate the possibility of employee tampering but it also makes the process of stocking shelves more efficient.它不仅消除的可能性员工篡改但它也使储存过程中更有效率的货架。

RFID Packaging Primer RFID的包装物

In the simplest terms an RFID packaging system consists of a tag (transponder) and a reader (interrogator).最简单的术语包装的RFID系统由标签（转发器）和读者（审讯） 。

The technology of RFID packaging deals with the remote collection of information stored on a tag using radio frequency communications.该技术的RFID包装处理远程收集的信息存储在标签上使用无线电频率通信。 The information stored on the tag can range from as little as an identification number, to kilo-bytes of data written to and read from the tag, to dynamic information maintained on the tag, such as temperature histories.信息存储在标签上可以从只有一个身份证号码，以千字节的数据写入和读取的标签，以保持动态信息的标签，如温度的历史。 The information from the tag/reader combination is either presented to a human operator typically using a hand-held device with a alpha-numeric display or a host computer which automatically manages the information.该信息的标签/阅读器组合是不是提交给一个人的运营商通常使用的手持设备与字母数字显示器或主机电脑自动管理的信息。

Frequency 频率

Critical performance variables in an RFID packaging system involve the range at which communication can be maintained, the size of the information space contained on the tag, the rate at which the communication with the tag can take place, the physical size of the tag, the ability of the system to “simultaneously” communication with multiple tags, and the robustness of the communication with respect to interference due to material in the path between the reader and the tag.关键业绩变数的RFID包装系统涉及的范围上的沟通才能维持，大小的信息空间上所载的标记，这一比率在这次会议上交流的标记可以进行，物理大小的标记，则能力系统“同时”通信与多个标签，并在稳健的通信方面的干扰由于材料间的路径读取器和标签。 Several factors determine the level of performance that can be achieved in these variable.有几个因素确定的性能水平，可以实现在这些变数。 The factors include the legal/regulatory emission levels allowed in the country of use, whether or not a battery is included in the tag to assist its communication back to the reader, and the frequency of the RF carrier used to transport the information between the tag and the reader.的因素包括：法律/监管的排放水平允许在该国使用，而不论是否电池已被列入标记，以协助其通讯回到读者，和频率的射频载波用来运输之间的信息标签和读者。

Over the course of decades of RFID package development, industry has evolved RFID packaging solutions that variously trade the regulatory constraints, the signal propagation characteristics of various RF carrier frequencies, and the economics of tag size and optional batteries.在过去的几十年的RFID封装的发展，工业已演变的RFID包装解决方案，不同的贸易管制的限制，信号传播特性的各种射频载波频率，而经济学的标签大小和可选的电池。 These solutions employ only a few RF frequencies around which the vast majority of RFID systems are fielded today.这些解决方案采用只有少数RF频率围绕着绝大多数的RFID系统是派出了今天。 The RF frequencies include relatively narrow bands centered at: 125/134KHz or low frequency (LF) 13.56MHz or high frequency (HF) 433/869/915MHz or ultra-high frequency (UHF) 2.45/5.8GHz or micro-wave (uW).射频频率包括相对狭窄带为中心，网址是： 125/134KHz或低频（ LF ） 13.56或高频（ HF ） 433/869/915MHz或超高频（ UHF ） 2.45/5.8GHz或微型波（威斯康星） 。

These frequency values are commonly referred to the RFID packaging technology.这些频率值通常被称为的RFID封装技术。 Thus, tags and readers combinations are described as employing LF, HF, UHF, or uW technology.因此，标签和读取器的组合被称为用人低频，高频，超高频，或威斯康星大学的技术。

Passive/Active Tags 无源/有源标签

Within any one technology there is a wide variety in tag performance reflecting semiconductor chip performance, tag antenna size and efficiency, and whether a battery is included in the tag.在任何一个技术有各种各样的标记业绩反映半导体芯片的性能，标签天线尺寸和效率，以及是否电池已被列入标记。 There are two broad classes of tags with respect to the source of energy used to power the tags: passive tags or those that receive their energy solely from the RF field supplied by the reader, or active tags that have a battery to boost the read range of the tag.有两大类的标签方面的能源用于电力的标签：无源标签或那些接受它们的能源完全由射频场提供的读者，或主动标签，有一个电池，以提高阅读范围的标记。

Read Range 读取范围

In many cases there is a sharp delineation between the read range of two classes of tags employing passive technology, those that have a relatively short read range and those that have a relatively long read range, especially at LF and HE Like many radio systems, short range RFID systems tend to be less expensive and relatively easy to design and build.在许多情况下，有一个鲜明的划定范围改为两班的标签采用无源技术，那些相对较短的阅读范围和那些相对较长的读取距离，尤其是在低频和何象许多无线电系统，短RFID系统的范围往往是费用较低，比较容易设计和建造。 Long range RFID packaging systems tend to be more expensive and difficult to build.远距离RFID的包装系统往往是较为昂贵，而且很难建立。 Typically, the range performance of RFID packagin systems is determined to a major extent by the reader, the power of the signal it radiates and the sensitivity of its receiver.通常情况下，各种性能的RFID packagin系统确定的重大程度上受到读者的力量它的信号辐射和灵敏度的接收器。

Anti-Collision 防撞

In many applications it is desirable to communicate with a tag when other similar tags are simultaneously visible to the reader.在许多应用中是可取的沟通标签时其他类似的标记，同时可见的读者。 In the case of tagging pigs, it is unlikely two pigs will need to be in the read space at the same time.对于标注猪，也不可能两个猪将需要在阅读空间同一时间举行。 In the case of library books an important design feature is the ability to read and “check-out” multiple books as the same time.在图书的一个重要设计特点是能够读取和“退房”多本书的同一时间。 The ability of the tag/reader system to talk unambiguously with one tag at a time is determined by the anti-collision algorithm used to identify each tag and establish a communication session with the tag.的能力，标签/阅读器系统，以毫不含糊地谈论同一个标签上的时间是确定的防碰撞算法用来确定每个标签和建立一个沟通会议的标记。

Tag/Reader Communication Protocols 标签/阅读器的通信协议

How information is communicated to and from the tag has historically been determined by the original designer of the semiconductor device in the tag.如何传达信息，并从标签历来是确定的原始设计的半导体器件中的标记。 These protocols vary widely in the ways the carrier is modulated, the data is encoded, read, write, verify commands are structured, how multiple tags are read without interfering with one another, and whether privacy or security services are provided.这些协议有很大差异的，承运人的方式调制，数据编码，读，写，核实命令的结构，如何多个标签是只读不干预彼此，以及是否隐私或安全提供服务。 These varying protocols have relative advantages and disadvantages, depending upon the application being considered.这些不同的协议有相对优势和劣势，根据申请正在审议中。

Standards 标准

Over time RFID manufacturers and users have typically concluded that while there are advantages to having several communication protocols from which to choose for any application, there would at each frequency be an advantage to settling on one protocol, or at most a couple of protocols, which multiple suppliers could offer chips and readers.随着时间的推移， RFID的制造商和用户通常都得出结论说，尽管有优势，有几个通讯协议可供选择的任何申请，将在每个频率的优势来解决的一个协议，或最多一对夫妇的议定书，这多个供应商可以提供芯片和阅读器。

The appearance of these standards is relatively recent and reflects the work of industry bodies including the UCC and the EAN, the International Standard Organization ISO, and national bodies like ANSI in the US Many of these standards are new or are in the process of being defined and there is considerable uncertainty what their form will ultimately be.出现的这些标准是比较近期的，反映了工作的行业机构，包括统一编码委员会和国际物品编码，国际标准化组织国际标准化组织，机构和国家机构一样的ANSI在美国的许多这些标准是新的或正在被界定有相当大的不确定性是其形式将最终。

Summary 综述

The RFID industry today represents a dynamic attempt by manufacturers and users to build and deploy solutions reflecting trade-offs between a wide range of technical, political, and regulatory constraints. RFID产业的今天是一个动态的企图制造商和用户建立和部署解决方案的反映之间的权衡了广泛的技术，政治和管理上的限制。 It is in this dynamic environment that SAMSys provides RFID readers which enable end-users, system integrators, and automatic data capture (ADC) equipment suppliers to make timely and safe decisions about how to employ RFID.正是在这个不断变化的环境， SAMSys公司提供RFID读取器，使最终用户，系统集成，自动数据采集（ ADC ）的设备供应商作出及时和安全的决定如何运用RFID技术。

For more information on the RFID packaging, please contact:欲了解更多关于RFID的包装，请联系：

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