Location:
Search - rfid data
Search list
Description: Abstract：This article elaborats the RFID system，multianalysised the concrete function of RFID middleware，and proposed a kind of
RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively，
RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively，
Platform: |
Size: 161982 |
Author: 周 |
Hits:
Description: RFID数据控制接口，主要功能：数据存储，时钟，卡信息存储，LED显示,带有地址编码，可拖挂多台控制器-RFID data interface and control key functions : data storage, clocks, card storage, LED display, with address coding, multi-controller Trailer
Platform: |
Size: 5120 |
Author: 郎济东 |
Hits:
Description: 关于RFID卡从串口读入数据，在Pocket PC上显示-on RFID Card Reading from the serial data into the Pocket PC show
Platform: |
Size: 58368 |
Author: sunwei |
Hits:
Description: 这是一个rfid读卡器程序，通过spi方式读取卡的数据并控制，实现了寻卡，校验，读卡，写卡，加密等操作。 -rfid reader procedure for the adoption of spi way to read the card data and control. realized the card searching and testing, reader, write cards, encryption and other operations.
Platform: |
Size: 50176 |
Author: 罗小兵 |
Hits:
Description: managing rfid data，介绍rfid data 相关方面知识-managing rfid data, introduction rfid data related knowledge
Platform: |
Size: 141312 |
Author: joey39 |
Hits:
Description: RFID温度签的源码，用于冷链物流行业的制冷车的温度控制，此程序为相关温度数据的读写之用。-RFID temperature of the source code to sign for the cold-chain logistics industry refrigeration truck temperature control, this procedure is related to the temperature data used to read and write.
Platform: |
Size: 304128 |
Author: youwell |
Hits:
Description: Abstract：This article elaborats the RFID system，multianalysised the concrete function of RFID middleware，and proposed a kind of
RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively，
RFID data transmission design model with news transmission mechanism，for realizing data transmission more effectively， -Abstract: This article elaborats the RFID system, multianalysised the concrete function of RFID middleware, and proposed a kind of RFID data transmission design model with news transmission mechanism, for realizing data transmission more effectively, RFID data transmission design model with news transmission mechanism, for realizing data transmission more effectively,
Platform: |
Size: 161792 |
Author: 周 |
Hits:
Description: 利用射频卡读写基站U2270B实现对EM4100卡的读取控制。系统会自动对曼彻斯特编码进行解调，并对接收到的数据检验。同时系统会自动检测是否有射频卡存在。而且会实时监控系统运行的状态，并会提示各种读卡错误的信息。显示采用12864液晶，没有附上液晶源码。-The use of radio frequency card reader U2270B realize base stations on the EM4100 card reader control. The system will automatically Manchester code demodulator and the received data verification. At the same time, the system will automatically detect whether there has RF card. But also real-time monitoring of system operation status, and will prompt all kinds of readers the wrong message. 12864 LCD display used, there is no source attached LCD.
Platform: |
Size: 3072 |
Author: chb |
Hits:
Description: RFID资料，可以系统了解RFID的信息，非常适合初学者-RFID data, RFID can be systematic understanding of the information, very suitable for beginners
Platform: |
Size: 142336 |
Author: hktk |
Hits:
Description: RFID打印机程序 可以实现条码的打印和写入数据-RFID printers can achieve barcode printing and writing data
Platform: |
Size: 4964352 |
Author: 杜鸿野 |
Hits:
Description: 射频识别技术[Radio Frequency Identification，RFID]是自动识别技术的一种，近几年发展非常迅速。射频识别技术的工作方式是利用射频方式进行非接触双向通信，以达到识别目标对象并交换数据。-RFID [Radio Frequency Identification, RFID] is an automatic identification technology, developed rapidly in recent years. Radio frequency identification technology, working methods are conducted using non-contact radio frequency two-way communication, so as to achieve the target audience identification and exchange of data.
Platform: |
Size: 1147904 |
Author: 胡利建 |
Hits:
Description: Radio Frequency Identification [RFID]
systems have become popular for
automated identification and supply chain
applications. This article describes the
technical fundamentals of RFID systems
and the associated standards. Specifically,
we address the security and privacy aspects
of this relatively new and heterogeneous
radio technology. We discuss the related
security requirements, the threats and the
implemented mechanisms. Then the current
security and privacy proposals and their
enhancements are presented. Finally we
discuss the role of this technology in
Ubiquitous Computing-The automated identification of objects
with electromagnetic fields is the major
purpose of the RFID [Radio Frequency
Identification] technology. An RFID system
basically consists of transponders [tags],
readers [scanners] and application systems
for further processing of the acquired data.
There is a large variety of different RFID
systems: they may use low, high or ultra
high frequencies, the transponder may emit
only a fixed identifier or possess
significant memory and processing
capabilities. Transponders may incorporate
no security features at all or realise
effective security protocols similar to
smartcards. Most transponders are
passively powered by the radio field
emitted by the reader but there are also
active tags with a separate power supply.
The transponder design is also little
uniform: there are e.g. tiny tags with a size
of several millimetres, very thin “smart
labels” or standard ID-1 cards
Platform: |
Size: 357376 |
Author: 胡利建 |
Hits:
Description: RFID 读卡器设计原理图与PCB图，难得的设计资料图-RFID reader design and PCB schematic diagram, the design data for rare
Platform: |
Size: 313344 |
Author: 45465 |
Hits:
Description: FRID的案例及其方案。RFID射频识别、电子标签，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同时识别多个标签，操作快捷方便。-FRID case and its programs. RFID radio frequency identification, electronic label, non-contact automatic identification technology, radio frequency signal through the automatic recognition of the target audience and get the relevant data, there is no need to identify the work of human intervention can work in a variety of adverse circumstances. RFID technology can identify the high-speed movement of objects and at the same time to identify a number of labels, fast and convenient operation.
Platform: |
Size: 18883584 |
Author: jiajiajava |
Hits:
Description: 电子标签防碰撞是RFID 系统中一个关键问题。在射频识别系统中．当阅读器作用范围内有多个标签同时向阅读器发送数据时，会产生冲突，必须采用一种防碰撞算法解决这种冲突。在分析典型的二进制及动态二进制防碰撞算法基础上，采用了一种新的防碰撞算法。经实验证明，该算法能有效解决射频识别系统中多目标识别的防碰撞问题。-Tag anti-collision RFID system is a key issue. In the radio frequency identification systems. When the reader within the framework of the role of multiple tags simultaneously send data to the reader, it will create conflict, you must use a anti-collision algorithm to solve such conflicts. In the analysis of a typical binary and dynamic anti-collision algorithm based on the binary, using a new anti-collision algorithm. The experiments show that the algorithm can effectively solve the radio frequency identification system, multi-target recognition of the anti-collision problem.
Platform: |
Size: 181248 |
Author: 吴晓彦 |
Hits:
Description: the rfid tag reader program, for verifing card and operating with data
Platform: |
Size: 22528 |
Author: gotcha |
Hits:
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.
Platform: |
Size: 502784 |
Author: bb |
Hits:
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
Platform: |
Size: 4366336 |
Author: HY jian |
Hits:
Description: 无线射频技术RFID资料汇总，包涵各个领域的的无线收发，RFID资料-Radio Frequency Identification Technology RFID data summary it covers all areas of the wireless transceiver, RFID data
Platform: |
Size: 116736 |
Author: 韦远鹏 |
Hits:
Description: RFID Data Processing with a Data Stream Query Language
Platform: |
Size: 534528 |
Author: 阿东 |
Hits: