介绍一种简单射频识别系统设计。该设计包括阅读器、应答器和线圈3部分。由单片机控制阅读器向应答器发射无线信号，并接收应答器回送的信号，再通过分析回送信号识别物品。阅读器和应答器之间以半双工通信方式通信。 Abstract: A simple design of radio frequency IDentification system is given in this paper.The design includes reader,responder and winding.Through MCU，signals are sent to responder from reader，then corresponding signals are sent back. According to the analysis of the signals sent back，the objects can be identified.Half-duplex communication is adopted? between? reader? and? responder.
上传时间： 2013-10-11
上传用户：plsee
RFID（Radio Frequency IDentification）技术是利用射频通信实现的一种非接触式自动识别技术。拥有广阔的发展前景和巨大的市场潜力。本文介绍了RFID技术的原理、特点，深入分析了信号传输时所采取的反方向散射的调制方式，影响传输距离的因素，最后介绍了在远程RFID自动识别系统中的读写冲突和防冲突算法，更好的解决了远程RFID系统存在的冲突问题。
上传时间： 2013-10-11
上传用户：fdfadfs
提出了一种基于PIC16F877A微控制器和CC2500射频收发器芯片的低功耗、低成本RFID（Radio Frequency IDentification， 无线射频识别）局域定位系统设计方法，介绍了系统的定位工作原理、主要硬件电路模块及定位算法的设计和实现。采用基于序列号对时隙数运算的排序算法有效解决了多标签识别碰撞的问题，基于射频辐射强度（Received Signal Strength Indication， RSSI）和圆周定位算法实现了基于RFID多标签系统的平面定位。实验测试表明，这种射频定位方法能够实现一定精度下的无线局域定位的功能。
上传时间： 2013-11-06
上传用户：weareno2
The information in this specification is subject to change without notice.Use of this specification for product design requires an executed license agreement from the CompactFlashAssociation.The CompactFlash Association shall not be liable for technical or editorial errors or omissions contained herein; norfor incidental or consequential damages resulting from the furnishing, performance, or use of this material.All parts of the CompactFlash Specification are protected by copyright law and all rights are reserved. Thisdocumentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to anyelectronic medium or machine readable form without prior consent, in writing, from the CompactFlash Association.The CFA logo is a trademark of the CompactFlash Association.Product names mentioned herein are for IDentification purposes only and may be trademarks and/or registeredtrademarks of their respective companies.© 1998-99, CompactFlash Association. All rights reserved.
标签： 技术资料
上传时间： 2013-10-08
上传用户：stewart·
4. If a modified source code is distributed, the original unmodified -- source code must also be included (or a link to the Free IP web -- site). In the modified source code there must be clear -- IDentification of the modified version.
标签： source code distributed unmodified
上传时间： 2013-12-14
上传用户：qq1604324866
This module can be used to interface to the MMC card in MMC or * SPI modes. It supports a multiple card environment. The reset and * IDentification processes assume multiple cards on the bus. * In MMC mode, the card number is used as the RCA operand in the * commands.
标签： MMC interface multiple supports
上传时间： 2014-01-07
上传用户：qilin
matlab编写的一个涂胶机的仿真程序，可用于仿真和控制方法的验证，具体可参见文献"IDentification and cross-directional control of coating processes"
上传时间： 2015-08-16
上传用户：sammi
本书以4个面向来表现C++的本质：procedural（程序性的）、generic（泛型的）、object-based（个别对象的）、object-oriented（面向对象的）。本书的组织围绕着一系列逐渐繁复的程序问题，以及用以解决这些问题的语言特性。循此方式，你不只学到C++的函数和结构，也会学习到它们的设计目的和基本原理。 你可以由本书发现以下关键主题： ● Generic （泛型）编程风格和Standard Template Library(STL) ● Object-based(个别对象)编程风格和class的设计 ● Object-oriented(面向对象)编程风格和classes阶层体系的设计 ● Function template 和class template 的设计和运用 ● Exception handling(异常处理)与执行期型别鉴定（Run-Time Type IDentification）
标签： object-oriented object-based procedural generic
上传时间： 2013-12-30
上传用户：362279997
This article describes Atmel’s FingerChip technology for electronic fingerprint sensing that combines the advantages of small size, low cost, high accuracy, zero maintenance, low energy consumption and portability. This technology has applications in a wide range of fixed and portable secured devices including access control systems, cash terminals, public transport, PCs, PDAs, Smart Card readers and motor vehicles. It can be used in almost any situation where rapid, reliable and accurate IDentification or authentication of an individual is required.
标签： fingerprint FingerChip technology electronic
上传时间： 2013-12-27
上传用户：h886166
In the field of biometrics, palmprint is a novel but promising technology. Limited work has been reported on palmprint IDentification and verification, despite the importance of palmprint features. There are many unique features in a palmprint image that can be used for personal IDentification. Principal lines, wrinkles, ridges, minutiae points, singular points, and texture are regarded as useful features for palmprint representation.
标签： biometrics technology palmprint promising
上传时间： 2016-04-02
上传用户：duoshen1989
