个人毕业论文
随着科技的发展，传统的抄表技术已经不能满足当今物业管理的需要，无线抄表技术逐渐替代了传统的抄表技术。自动无线抄表系统采用计算机技术和通信技术来读取和处理数据。本文研究并设计了基于ZigBee技术的自动抄表系统。ZigBee是一个低成本，低功耗，组网容易的无线通信技术，是目前最适合应用于自动抄表系统的短距离无线通信技术。
Individual Thesis With the development of technology, the traditional meter reading technology can not meet the needs of today' s property management, wireless meter reading technology is increasingly replacing the traditional meter reading technology. Automatic wireless meter reading system uses computer technology and communication technology to read and process the data. This paper is designed based on ZigBee technology, automatic meter reading system. ZigBee is a low cost, low power consumption, easy wireless networking communication technology, is the most suitable for automatic meter reading system of short-range wireless communications technology. (2011-05-27, C/C++, 1158KB, 下载33次)
本文提出并研究设计了一个基于ARM和uC/OS一11的自动气象站实时多任务数据采集系统，完成了系统的硬件和软件设计。该系统以犯位高性能ARM微处理器S3C44BOX为硬件核心，扩展了10/100M以太网接口、USB2.0接口、RS232串口以及DE接口等通用接口 以嵌入式实时操系统uC/OS-II为软件平台，在ARMSDT.251环境下进行系统软件的开发。该系统充分利用了ARM微处理器高性能、低功耗、低成本的优势，发挥了uC/OS-II可移植性好、开发成本低的点，为自动气象站的数据采集提供了一个经济实用的解决方案。
In this paper, and designed a study based on the ARM and uC/OS-11 automatic weather station data acquisition in real-time multi-tasking system, the completion of the system' s hardware and software design. The system is committed S3C44BOX bit microprocessor for high-performance ARM core hardware to expand the 10/100M Ethernet interface, USB2.0 interface, RS232 serial port as well as the common interface, such as DE interface to embedded real-time systems Cao uC/OS-II for the software platform, ARMSDT.251 environment in the software development system. The system makes full use of high-performance ARM microprocessor, low power, low-cost advantages, has played a uC/OS-II portability, and the development of low-cost point for the automatic weather station data collection provides an economic practical solutions. (2009-07-21, C/C++, 1990KB, 下载63次)
此为博士论文，<无线自组织网MAC层协议关键技术的研究>文章提出了同时解决隐终端和暴露终端问题的无线自组织网MAC协议，分析了多信道协议中存在的“聋”(Deafness)问题，以及基于IEEE802.11DCF机制的多信道协议中的新的隐终端问题。并且设计了新的协议，用来同时解决多信道协议在信道预留、分配上存在的隐终端和暴露终端问题。
A novel MAC protocol is proposed,which can solve the hidden and exposed
terminal problem simultaneously.
A new deafness problem in simple multi-channel MAC protocol and a new
type of hidden terminal problem when using RTS/CTS handshake to reserve the
channel are put forward and figured out A novel mutli-channel MAC protocol is
proposed to avoid the deafness problem，hidden and exposed terminal problems simultaneously.
(2009-05-08, C/C++, 1215KB, 下载23次)
多功能低压配网无功补偿装置。该装置集多种功能为一体，具有动态无功补偿，配变监测，谐波测量和分析、计量!、通讯等功能。
low-voltage distribution network multifunctional reactive compensation devices. The installation of a multi-functional integration, dynamic reactive power compensation, distribution transformer monitoring, measurement and harmonic analysis, measurement! , communications, and other functions. (2007-06-11, C/C++, 63KB, 下载250次)