摘要
针对在恶劣环境下无线传感器网络组成的分布式测试系统,测试数据易丢失不易管理、无线回传大量试验数据慢等问题,提出了在数据存储管理系统中设计基于NAND FLASH非易失性存储器的文件系统,对数据存储管理的方法。该方法把每次实验的多种类数据分别以文件形式存储,以文件编号及文件名区分;依据被测信号的典型特征,存储管理时提取其特征值信息作为文件头信息存储,可基于提取特征值的高效数据传输。试验表明,基于NAND FLASH非易失性存储器创建文件系统,方便有效存储管理测试数据;基于特征值提取的高效数据传输为系统无线传输慢提供了可行性方案,提高了系统整体性能。
The problems with the distributed test systems based in wireless sensor networks used in severe environrnent is that the complex test data is easy to be lost and hard to be managed,and a large amount of test data is returned slowly. To solve these problems, the data storage and management method based on NAND Flash non-volatile memory is designed. In this method, types of test data ate stored as files respectively, and the documents are distinguished by their numbers and names. Based on the typical characteristics of the measured signal, its eigenvalue is extracted to be stored as header information of the file, so the data can be transmitted efficiently. The test shows that this file system created based on NAND Flash non-volatile memory can be an effective storage and management method; the efficient data transmission based on eigenvalue extraction provides a feasible solution for slow wireless communication and improve the performance of the whole system.
出处
《探测与控制学报》
CSCD
北大核心
2010年第1期84-87,共4页
Journal of Detection & Control
基金
国家重点实验室基金项目资助(9140C12040206060C12)
