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Description: RFID 开发指南，基于JAVA的RFID应用，教程-Examples of RFID read and write operations to facilitate the RFID applications based on JAVA
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Size: 323584 |
Author: vincent |
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Description: 本程式主要應用於windows mobile 行動裝置 使用visual basic編程 加上rfid通訊技術 -This program is mainly used in mobile devices, windows mobile programming using visual basic communication technology coupled with rfid
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Size: 6849536 |
Author: jacklai |
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Description: A major problem with RFID systems is that a tag might not be read, in spite of being in
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.-A major problem with RFID systems is that a tag might not be read, in spite of being in
the reader’s range, due to collisions[4]. A collision is said to have occurred when various
devices interfere with each others’ operations, or their simultaneous operations lead to
loss of data. The reading process is not efficient due to various types of collisions, which
are classified as follows :-
• Single Reader-Multiple Tags collision : Multiple tags are present to communicate
with the reader. They respond simultaneously and reader is not able to interpret
the signal.
• Single Tag-Multiple Readers collision : Single tag is in the range of two or more readers.
Tags are mainly passive entities, they do not have enough power to differentiate
between frequency range of the readers.
• Reader-Reader interference : Two or more readers within the same frequency range
interfere with each others’ operations.
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Size: 502784 |
Author: bb |
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Description: Covering both passive and active RFID, the challenges to RFID implementation
are addressed using specific industry research examples as well as common
integration issues. Key topics such as performance optimization and evaluation,
sensors, network simulation, RFID in the retail supply chain, and testing are
covered, as are applications in product lifecycle management in the automotive
and aerospace sectors, in anti-counterfeiting, and in health care.
This book brings together insights from the world’s leading research
laboratories in the field, including MIT, which developed the Electronic Product
Code (EPC) scheme that is set to become the global standard for objectidentification.
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Size: 1890304 |
Author: bb |
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Description: Radio Frequency Identification (RFID) systems have recently received a lot of attention
in supply chain applications. One of the challenges facing RFID in this application
domain is the fast identification of a large number of tags that are simultaneously present
in the reader range of an RFID reader. In this thesis, different transmission control
strategies were evaluated based on the EPCglobal Class-1 Generation-2 UHF RFID
protocol. These strategies focus on incorporating the capture effect and an accurate tag
population estimate. To facilitate the evaluation, a Java-based simulator of the MAC
layer of the above protocol was implemented.
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Size: 1302528 |
Author: HY jian |
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Description: 本文首先研究了IsO／IECl8000．6标准中A、B两类短程通讯的前向链路与返回
链路的数据编码方式，对(FMO)双相间隔编码、(PIE)脉冲间隔编码、曼切斯特码
的编解码方式和技术参数进行了深入的分析，并利用FPGA实验平台对这三种编
码的编、解码电路进行了设计和仿真。然后对UHF RFID系统的差错控制技术原理
进行了探讨，重点研究了ISo／IECl8000．6标准中采用的数据保护与校验技术，即
循环冗余校验(CRC)技术。分析了基于线性反馈移位寄存器(LFSR)实现CRC的电
路，从理论和实现两个方面对其中存在的问题提出了解决办法，设计了一种改进
型线性反馈移位寄存器电路来实现循环冗余校验。对于要求CRC运算速度高的系
统，本文利用了递归的算法设计了一种新型的并行CRC电路。最后本文提出了一
种新颖的UHF RFID系统数字基带电路，区别于一般数字基带电路的地方是：在编
解码模块和CRC模块之间加入了卷积编码和维特比译码模块。利用卷积码优良的
纠错能力，来解决UHF RFID系统在电磁干扰严重的环境中识别率低、通信速度慢
的问题，效果良好。-The first，this paper investigates the f．0rward link and retum link data encodlng
method in short range communication types A and B in ISO／IEC 1 8000-6，and deeply
analyzes encoding method and technical parameters of Bi—Phase Space(FMO)coding，
Pulse IntervaI Encoding(PIE)coding and Manchester coding．We also designed and
simulated code circuits and decode circuits of the three encoding method by FPGA
experiment platfoml． The second， We discussed the technical principle of error
control of the UHF RFID system，especially for the techn0109y of data Verification
肌d calibration，namely cyclic redundancy check that used in IS0／IEC 1 8000·6·The
circuits of CRC based on Linear Feedback Shin Register(LSFR)are analyzed行om
theonr and realization，and some means of solVing problems are put fon)Irard，then an
improved LSFR circuit to implement CRC is designed．For some require fast CRC
calculation system，we designed a noVel parallel CRC circuit by using recurslVe
fomlula．In the end，we put forw
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Size: 4366336 |
Author: HY jian |
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Description: 电子标签中间件系统是处于电子标签硬件系统和电子标签应用系统
之间的一类软件，是电子标签应用系统的核心。各大软件公司的RFID 解
决方案基本都是作为企业套件的一部分进行出售，而对于已有良好运行
的应用系统的中小企业，购买大型的企业套件，资金也是它们面临的最
大问题。本文致力于研究轻量级的、独立于架构的、能与企业已有系统
进行快速集成的电子标签中间件系统。-RFID middleware is a bridge between RFID hardware and enterprise
application system. It is the key technology of RFID application. RFID
solutions put forward by software enterprises have many advantages, but they
are sold as a part of enterprise application suite. For those small and
medium-sized enterprises who already have enterprise application systems,
the fund needed to purchase enterprise application suite is the biggest problem
they meet. This paper focuses on light-weight, easy-integrated RFID
middleware suitable for small and medium-sized enterprises
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Size: 480256 |
Author: HY jian |
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Description: 本文研究RFID中间件的事件过滤技术，主要工作：(1)综合分析了各RFID事件
过滤算法的性能，着重分析了两种具有代表性的算法并指出其不足和局限。(2)分析了
RFID中间件在实际应用中的性能要求，提出一种更适合于RFID中间件的事件过滤算
法，基于聚合转换和KDB树的事件过滤算法。(3)用仿真实验测试各算法的性能表现，
证明本文的算法提升了RFlD中间件的综合性能。-Event Filtering is the core function of RFID middleware and is hot spot in the research of
RFID middleware．Traditional Event Filtering technology rely on a variety of optimization in
the database，Can not meet the requirements of RFID middleware．the filtering technology
based Oil the memory databases is concern about in current researches，such as a variety of
filtering techniques based on the hash table，CQI，vclL R-Tree index have been proposed and
applied to the RFID middleware．Them improved the timeliness and reduce the storage space
to some extent，but t11ey emphasize unilateral performance but not overall performance
because the practical application environment of RFID middleware is not considered
III
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Size: 3192832 |
Author: HY jian |
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Description: RFID系统反碰撞算法设计与FPGA仿真-Anti-collision algorithm design
and FPGA simulation for RFID System
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Size: 382976 |
Author: xiaolei |
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Description: 超高频RFID系统的编译码模块设计UHF RFID system design-A UHF RFID system design and decoding module
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Size: 1672192 |
Author: |
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Description: RFID串口调试程序源代码，非常适合初学者-RFID serial debugger source code
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Size: 58368 |
Author: 李泉 |
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Description: 本人近期对RFID相关信息收集学习的笔记，希望对你的学习有所帮助-I have recently collected relevant information on the RFID study notes, you want help in learning
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Size: 11264 |
Author: 李伟 |
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Description: RFID 射频卡的驱动程序。实现从卡上读取内容的功能-the drive for RFID.
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Size: 7168 |
Author: ding qianghua |
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Description: distance algorithm in RFID
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Size: 1024 |
Author: SJ KIM |
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Description: 对RFID系统在MATLAB中进行仿真，并提出了方案，和重要的结果。-A simulation in MATLAB/simulink. It not only provides details about how to realize RFID system, but also shows the final result of this system.
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Size: 508928 |
Author: xu qiaoyi |
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Description: EM-18 RFID module with PIC 16F873A.
it read EM4100 card and open the door.
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Size: 510976 |
Author: hamid |
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Description: 关于rfid射频技术的实现方式的软件研究，并通过matlab进行了仿真-Theory of rfid programming，similation in matlab environment
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Size: 296960 |
Author: 陈全杰 |
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Description: msp430结合24l01无线射频 低功耗有源无线射频 RFID的首选-msp430 with 24l01 low-power radio frequency radio frequency of choice for RFID
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Size: 4096 |
Author: wangligen |
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Description: 一个RFID项目的RF方案和ADS仿真RF部分-An RFID project RF part of the program and ADS RF simulation
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Size: 168960 |
Author: hebin |
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Description: rfid 电子标签数字系统设计各模块设计仿真实现-rfid electronic card digital system design
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Size: 1275904 |
Author: lvjian |
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