【作者】 刘忠庆；

【导师】 苏育挺；

【作者基本信息】 天津大学 ， 信号与信息处理， 2010， 硕士

【摘要】 本文全面介绍了GPS以及MapX技术的相关理论及背景知识,结合了GPS和MapX技术,采用了MapInfo公司生产的MapX控件以及可视化编程工具软件VC++6.0进行开发,建立了基于MapX的GPS导航系统,能够实现对导航目标的实时跟踪,并且能够使用Access数据库及DAO技术对导航目标的位置信息进行存储和管理,本文主要研究内容如下:1、使用VC++创建MapX电子地图,实现地图的一些基本功能;2、使用多线程以及MSComm控件技术,实现了计算机和GPS模块之间的串口通信;3、对GPS信息数据进行解析,得到导航目标的经纬度信息,并且应用Access数据库技术对数据进行存储以及管理;4、结合GPS技术以及MapX技术,实现导航目标的动态跟踪,在电子地图上实时显示导航目标的位置; 5、利用Access数据库技术以及MapX技术,对导航目标的行动轨迹进行存储,并且在电子地图上进行路径回显;6、实现了屏幕坐标和地理坐标之间的转化,并在此基础上,设计并实现了电子地图的鹰眼图功能;7、本系统与CMMB信号路测仪系统结合使用,实现了CMMB信号强度分布图的绘制,使用户对区域内的CMMB信号强度变化趋势一目了然。经过实地试验,证明了本系统具有较强的扩展性以及通用性,具有比较高的实用价值和社会价值。测试结果表明,此系统运行比较稳定、可靠,实现了对导航目标的位置显示和动态跟踪等基本功能。需要指出的是,本系统被用于课题组所研制的产品CMMB信号路测仪之中,并且达到了预期效果,同时也证明了本课题研究的价值以及此导航系统的实用性。更多还原

【Abstract】 This paper introduces the background knowledge and theories of GPS and MapX technology,and then establish the GPS navigation system based on MapX by using VC++6.0. It can achieve real-time tracking to the navigation target and can store and manage the locating information of the navigation target by using Access database and DAO technology. This paper includes the following:1. achieve some of the basic function of the map by using MapX electronic map which created by VC++;2. realize the serial communication between the computer and the GPS module by using multiple threads and MSComm control technology;3. get the navigation targets’latitude and longitude information by analyzing the GPS information data, and store and manage the data by using Access database technology;4. achieve dynamic tracking to the navigation target and real-time display the location of the navigation target on the electronic map by combining the GPS and MapX technology;5. store the action path of the navigation target and realize the echo path on the electronic map by using Access database and MapX technology;6. achieve the conversion between the screen coordinates and geographic coordinates, and on this basis, design and realize the Overview Map function;7. get the CMMB Signal Strength Distribution Chart by combine the system and CMMB Signal System, so that the users are clear the trends of the CMMB signal strength at a glance.Field tests proved that the system is highly scalable and versatile. It also has a high practical value and social value. Test results show that the system runs stable, reliable, achieves the real-time display of the navigation targets’position, dynamic tracks the navigation target. This system was used in the products“CMMB Signal System”in our laboratory, and it has achieved the desired results. It also proves the value of this research as well as the practicality of this navigation system.更多还原