摘要
为提高定位精度和系统响应速度,采用嵌入式操作系统Windows CE.net和嵌入式微处理器ARM9,开发了手持式GPS导航定位仪。系统主要包括两部分:一是在S3C2410开发板中实现了GIS功能,二是实现了GIS与GPS的集成,实现了地图数据库查询、定位导航、路径寻优、无线通信、电子地图更新等功能。应用EVC++4.0和MapX Mobile开发了嵌入式GPS移动导航系统软件,采用多线程技术,在后台异步运行地图数据库查询等程序。经过测试,基于Windows CE的嵌入式手持导航仪能准确地获取GPS数据,匹配后电子地图能准确显示位置并指示方向;定位误差和响应时间均能满足设计要求;系统能自动给出最优路径;系统的软硬件集成度较高,稳定性好。
In order to improve navigation precision and response speed, the embedded operation system Windows CE.net and embedded microprocessor ARM9 were applied to develop a portable GPS navigation instrument, in which the GIS functions were realized on S3C2410 board, and GIS was integrated with GPS to realize map database search, position navigation, routine optimization, wireless communication, electric map update and so on. EVC＋ ＋ 4.0 and MapX Mobile were used to compile embedded GPS navigation system software in which multithreading technique was adopted, i.e., map database searching program and others were asynchronously run under background. After being tested, the navigation system can correctly acquire GPS data, and electric map can accurately display position and direction; the position error and response speed satisfy design index; the system can automatically figure out optimization routine; the navigation system has high integration degree, and better stability.
出处
《中国惯性技术学报》
EI
CSCD
2007年第1期63-66,71,共5页
Journal of Chinese Inertial Technology
基金
船舶行业国防预研基金项目(02J4.16)
