CAJ | 학술논문

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.
침대재악렬배경하무선전감기망락조성적분포식측시계통,측시수거역주실불역관리、무선회전대량시험수거만등문제,제출료재수거존저관리계통중설계기우NAND FLASH비역실성존저기적문건계통,대수거존저관리적방법.해방법파매차실험적다충류수거분별이문건형식존저,이문건편호급문건명구분;의거피측신호적전형특정,존저관리시제취기특정치신식작위문건두신식존저,가기우제취특정치적고효수거전수.시험표명,기우NAND FLASH비역실성존저기창건문건계통,방편유효존저관리측시수거;기우특정치제취적고효수거전수위계통무선전수만제공료가행성방안,제고료계통정체성능.
The problems with the distributed test systems based in wireless sensor networks used in severe environment 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.