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| 面向CPS的节点文件系统 | |
| 引用本文： | 杜晓舟,张宇皓,乔建忠,林树宽.面向CPS的节点文件系统[J].北京邮电大学学报,2014,37(5):100-104. |
| 作者姓名： | 杜晓舟 张宇皓 乔建忠 林树宽 |
| 作者单位： | 1. 东北大学 信息科学与工程学院, 沈阳 110819; 2. 趋势科技中国研发中心, 南京 210012; 3. 总参通信工程设计研究院, 沈阳 110005 |
| 基金项目： | 国家自然科学基金资助项目(61272177) |
| 摘 要： | 针对信息物理融合系统(CPS)的时间关键性和节点二级存储的必要性,在深入研究闪存文件系统和传感节点存储系统的基础上,提出一种级联日志策略和虚拟扇区映射技术相结合的方法来保证数据操作的可预测性,并优化文件架构和数据操作来提高文件系统效率. 仿真测试表明,系统的顺序输入/输出(I/O)性能与随机I/O性能稳定,且代码映像较小,便于部署在存储资源有限的节点系统上. |
| 关 键 词： | 信息物理融合系统 节点操作系统 文件系统 虚拟扇区映射 级联日志 |
| 收稿时间： | 2014-01-21 |
The File System of CPS Oriented Node Operating System |
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| DU Xiao-zhou,ZHANG Yu-hao,QIAO Jian-zhong,LIN Shu-kuan.The File System of CPS Oriented Node Operating System[J].Journal of Beijing University of Posts and Telecommunications,2014,37(5):100-104. | |
| Authors: | DU Xiao-zhou ZHANG Yu-hao QIAO Jian-zhong LIN Shu-kuan |
| Affiliation: | 1. Department of Information Science and Engineering, Northeastern University, Shenyang 110819, China; 2. Trend Micro China Development Center, Nanjing 210012, China; 3. Communication Engineering Design and Research Institute, the General Staff of People's Liberation Army, Shenyang 110005, China |
| Abstract: | Considering the characteristics of predictability for cyber physical systems (CPS) and the requirement of secondary storage for node systems, a research was carried for the existing flash file and sensor node file systems. A new node file system for CPS was designed, adopting virtual sector mapping technology and cascading page log strategy to ensure predictability, and also optimizing the file structures and data operations to improve efficiency. Experiments on the flash simulator show that the system has stable performances of sequence input/output (I/O) and random I/O. And the system image keeps small that means it is suitable to deploy on resource-limited nodes. |
| Keywords: | cyber physical systems node operating system file system virtual sector mapping cascading log |
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