CAJ | 학술논문

对基于Flash的3G智能卡文件系统的研究与设计,引用了数据库日志技术和掉电保护机制,保证了智能卡文件系统可靠性,数据的一致性和完整性;按字节静态分配存储空间、合理有效地回收与重用碎片空间,提高了存储空间的利用率;平均磨损和页面映射技术的使用延长了Flash的使用寿命;有效的存储设计提高了数据检索的速度,从而提高了智能卡的整体性能.测试证实了该文件系统设计适合3G EVDO卡.
대기우Flash적3G지능잡문건계통적연구여설계,인용료수거고일지기술화도전보호궤제,보증료지능잡문건계통가고성,수거적일치성화완정성;안자절정태분배존저공간、합리유효지회수여중용쇄편공간,제고료존저공간적이용솔;평균마손화혈면영사기술적사용연장료Flash적사용수명;유효적존저설계제고료수거검색적속도,종이제고료지능잡적정체성능.측시증실료해문건계통설계괄합3G EVDO잡.
Research and design of three generation file system for smart card on flash memory were made,introducing log technology and power consistency and integrality. Memory space was assigned according to byte. Mechanisms of valid space collection and reuse improve the using rate of memory space. Technology of wear leveling and page mapped prolong the flash storage life-span,and the design of efficiency memory management improves the rate of data retrieval. Consequently,the whole performance of smart card is strengthened. The simulation makes sure the file system fit 3G EVDO card.