Windows CE下GPS导航设备的启动速度的优化

Optimizing the Startup Speed of GPS Navigation Device Based on Windows CE Systems

基于Windows CE的GPS导航设备,由于系统的采用的FAT文件系统自身的缺陷,导致启动速度缓慢。经过深入分析Nand Flash驱动程序,FAT文件系统以及导航地图数据的特点,提出了一种优化导航设备启动速度的方法,该方法分为两个步骤,第一步将地图文件转换为可下载的bin文件格式;第二步通过EBOOT下载该bin文件。目前该方法已经应用到导航设备中,实测表明,该方法可以显著的提高导航设备的启动速度。

The startup speed of GPS navigation device is slow due to the drawbacks of FAT file system.A method of accelerating the startup speed is introduced according to deep analysis of Nand Flash driver,FAT file system and navigation data.The method is composed of two phases： translating map file into binary format file in the first phase;downloading the binary file through EBOOT in the second phase.The method has been already used in navigation device presently,and can accelerate the startup speed evidently.