The research area covered by the thesis includes embedded system design , hardware infrastructure of embedded gis system , architecture of nand flash , error detect code / error check code and there algorithm , journal file system , gis file index , wear leveling for nand flash , file system page cache and write delay , dynamic compression in file system etc . first , the thesis first analysis the embedded gis status in quo , technology background , difficulty it facing 本文研究領(lǐng)域涉及嵌入式系統(tǒng)開發(fā)、嵌入式gis系統(tǒng)軟硬件框架、 nand芯片體系結(jié)構(gòu)、差錯檢測差錯校驗( edc ecc )算法、日志文件系統(tǒng)、文件索引、芯片擦寫平衡、文件系統(tǒng)頁面cache與延遲寫技術(shù)、文件系統(tǒng)實時壓縮等技術(shù)。