基于RCM2200实现GPS定位数据的网络传输和数据处理
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
随着微电子技术和Internet的飞速发展,小型化、网络化将会成为差分GPS(DGPS)的未来发展趋势,它可以满足设备成本以及算法灵活性等多方面的要求,其中,GPS数据采集和实时传输是处理定位信息的关键技术之一。
     RCM2200是一种具有网络接入能力的嵌入式微控制器核心模块,本文根据差分GPS原理提出了一种新颖的基于RCM2200和GPS接收机的差分定位系统方案。作者完成了RCM2200与本地局域网的连接以及与GPS25LP—OEM之间的接口设计,采用Dynamic C语言编程,在RCM2200嵌入式微控制器模块上开发了一个通信控制器,根据GPS25LP—OEM的输出数据类型和格式,提取了GPS定位数据并以UDP报文的形式转发给本地局域网,在本地局域网的计算机上,采用Visual C++进行编程处理,使用户实时观察到定位所需的有用数据信息。联机调试证明,采用的方案是合理的,接收的数据是可靠的。
With the rapid development of micro-electronic technology and Internet,miniaturization and network realization will be a developmental direction of DGPS. It can meet many user requirements such as device cost and algorithm agility and so on. How to obtain and process GPS data efficiently is an important technology.
    The RabbitCore RCM2200 microprocessor module features an integrated Ethernet port and provides for network communication systems to be built easily. This paper presents a new scheme based on RCM2200 and GPS receiver with the aim to solve DGPS location problem through network. The author first completed interface design between RCM2200 and GPS25LP-OEM,and connected RCM2200 with local area network. Then a communication controller was developed on RCM2200 microprocessor module using Dynamic C language to program,which could realize receiving GPS data and transmitting these data to local area network in the form of UDP message. In local computers,the author used Visual C++ to program and presented real-time data that was useful for location to users. The result was shown that the adopted scheme was reasonable and the presented data was reliable.
引文
1、王广运,郭秉义,李洪涛.差分GPS定位技术与应用.电子工业出版社,1996
    2、洪大永.DGPS技术的研究.集美航海学院学报.1994,第12卷,第2期
    3、王齐林,陈凯.基于Internet的差分GPS定位系统建设中的若干问题.矿山测量,2002.9,第3期
    4、惠韶文.Mobile Internet系统设计.计算机系统应用.2000.9
    5、吴绪彦.基于Internet网络的差分GPS应用研究.计算机应用,2000.11,第20卷,第11期
    6、冯锡生,赵晓琳.GPS及其通信组网.中国铁道出版社,1996
    7、Elliott D. Kaplan. UNDERSTANDING GPS Principles and Applications.邱致和,王万义译.GPS原理与应用.电子工业出版社,2001
    8、Z-World Corporation. RabbitCore RCM2200 User's Manual, 2001
    9、Rabbit Semiconductor Corporation. Rabbit 2000TM Microprocessor User's Mannual, 2000
    10、Z-World Corporation. Dynamic C premier User's Manual for Rabbit Semiconductor Microprocessors (Integrated C Development System User's Mannual), 1999
    11、谢希仁.计算机网络.大连理工大学出版社,2000
    12、黄科.掌握Visual C++编程.电子工业出版社,2001
    13、陈坚,陈伟等.Visual C++网络高级编程.人民邮电出版社,2001
    14、Lapucha, D., and M. Barnes. Multi-Site Real-Time DGPS System Using Starfix Link: Operational Results, ION GPS-92, Albuquerque, NM, Sept. 16-18, 1992, pp. 581-588
    15、Loh, R., et al. The U. S. Wide-Area Augmentation System(WAAS), Navigation, Vol. 42, No. 3, 1995
    16、周兵.GPS接收机中卫星电文的获取.导航,1994,No.3
    17、张晓华,陈宏钧,孟凡伟.基于Rabbit2000的嵌入式测控技术.测控技术,2002,第21卷,第6期
    18、吕京建.嵌入式因特网技术的兴起与前景.北京英贝多嵌入式网络技术有限公司 1999
    19、游玉椿,赖步英.基于UDP通讯协议的设计.中山大学学报论从,2002.2,第22卷,第1期
    20、李方敏,叶澄清,李仁发.支持最小速率保证的UDP拥塞控制机制计算机研究与发展.计算机研究与发展,2001.8,第38卷,第3期
    21、Scrimger, R. TCP/IP Bible. 赵刚,林瑶,蓝智勇等译.TCP/IP宝典.电子工业出版社,2002
    
    
    22、杨大凯,王剑,蔡柏根.GSM短消息在GPS交通控制中的应用.电子技术应用,2002,第3期
    23、王祖林.基于车载电台的城市无线GPS数据传输网络.遥测遥控,1996.3,第17卷,第2期
    24、胡建国,成英燕,常晓涛.利用网络工程基准网点建立我国新的基于GPS的测量控制点方法与精度分析.测绘通报,2002,第10期
    25、Garmin. GPS 25/20 GPS Sensor Board Technical Specification, 1996
    26、Busse I, Deffner B, Schulzrinne H. Dynamic QoS control of multimedia application based on RTP, Computer Communication, 1996, 19(1): 49~58
    27、Rejaie R, Handley M, Estrin D. RAP: An end-to-end rate based congestion control mechanism for realtime streams in the Internet. In: Proc of IEEE INFOCOM'99. New York: IEEE Computer Society Press, 1999
    28、Gordon T, Johnston. Results and Performance of Multi-Site Reference Station Differential GPS. Proceeding of ION, 1993: 667~689
    29、卢建刚,过静珺,吴卫峰,郝彤途.如何选用嵌入式操作系统进行GPS开发.测绘通报,2002,第4期

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700