构造了满足导航要求的地图数据表示多维要素集NDIS_SET,针对嵌入式环境下计算、存储等资源有限的情况,提出了地图数据并行调度显示算法N_PDIS(navigation data parallel display),该算法根据地图显示操作进行模糊图幅预判,并通过动态图...构造了满足导航要求的地图数据表示多维要素集NDIS_SET,针对嵌入式环境下计算、存储等资源有限的情况,提出了地图数据并行调度显示算法N_PDIS(navigation data parallel display),该算法根据地图显示操作进行模糊图幅预判,并通过动态图幅调度生成两块位图,实时将其中的一块切换至屏幕,算法通过两个并行线程完成。实验结果表明,N_PDIS在显示速度和平滑性方面有明显的优势。展开更多
介绍了INS/DR/MM车辆组合导航系统以及系统的部件组成,对系统的软硬件结构进行了分析。结合目前各主流嵌入式平台的性能,利用Windows XP Embedded(XPE)嵌入式操作系统体积小和易扩展的优势,选用Windows XP Embedded作为车辆组合导航系...介绍了INS/DR/MM车辆组合导航系统以及系统的部件组成,对系统的软硬件结构进行了分析。结合目前各主流嵌入式平台的性能,利用Windows XP Embedded(XPE)嵌入式操作系统体积小和易扩展的优势,选用Windows XP Embedded作为车辆组合导航系统的开发平台。为了满足车辆导航实时、快速的要求,设计了基于模糊逻辑的地图匹配算法。经过多次实际跑车试验证明,该嵌入式车辆导航系统可以正确实时地将地图匹配后的位置信息显示在电子地图上。展开更多
Map data display is the basic information representation mode under embedded real-time navigation. After a navigation display data set （NDIS_SET） with several dimensions and corresponding mathematical description fo...Map data display is the basic information representation mode under embedded real-time navigation. After a navigation display data set （NDIS_SET） with several dimensions and corresponding mathematical description formula are designed, a series of rules and algorithms are advanced to optimize embedded navigation data and promote data index and input efficiency. A new parallel display algorithm with navigation data named N PDIS is then presented to adapt to limited embedded resources of computation and memory after a normal navigation data display algorithm named NDIS and related problems are analyzed, N_PDIS can synchronously create two preparative bitmapa by two parallel threads and switch one of them to screen automatically. Compared with NDIS, the results show that N_PDIS is more effective in improving display efficiency.展开更多
文摘构造了满足导航要求的地图数据表示多维要素集NDIS_SET,针对嵌入式环境下计算、存储等资源有限的情况,提出了地图数据并行调度显示算法N_PDIS(navigation data parallel display),该算法根据地图显示操作进行模糊图幅预判,并通过动态图幅调度生成两块位图,实时将其中的一块切换至屏幕,算法通过两个并行线程完成。实验结果表明,N_PDIS在显示速度和平滑性方面有明显的优势。
文摘介绍了INS/DR/MM车辆组合导航系统以及系统的部件组成,对系统的软硬件结构进行了分析。结合目前各主流嵌入式平台的性能,利用Windows XP Embedded(XPE)嵌入式操作系统体积小和易扩展的优势,选用Windows XP Embedded作为车辆组合导航系统的开发平台。为了满足车辆导航实时、快速的要求,设计了基于模糊逻辑的地图匹配算法。经过多次实际跑车试验证明,该嵌入式车辆导航系统可以正确实时地将地图匹配后的位置信息显示在电子地图上。
文摘Map data display is the basic information representation mode under embedded real-time navigation. After a navigation display data set （NDIS_SET） with several dimensions and corresponding mathematical description formula are designed, a series of rules and algorithms are advanced to optimize embedded navigation data and promote data index and input efficiency. A new parallel display algorithm with navigation data named N PDIS is then presented to adapt to limited embedded resources of computation and memory after a normal navigation data display algorithm named NDIS and related problems are analyzed, N_PDIS can synchronously create two preparative bitmapa by two parallel threads and switch one of them to screen automatically. Compared with NDIS, the results show that N_PDIS is more effective in improving display efficiency.
