期刊论文

中文

计算机工程

1000-3428

2016

42

2

66-69,76

10.3969/j.issn.1000-3428.2016.02.012

国家科技重大专项基金资助项目（2011ZX07412-001-01）；

本校为第一机构

针对远程自动抄表系统数据采集和存储的高可靠性要求,设计一种掉电安全和资源紧凑的轻量级Flash文件系统。该文件系统采用分层、模块化和跨平台设计,方便移植到包括ARM Cortex-M系列单片机在内的各种资源紧张的MCU平台,具有较高的灵活性和通用性。为实现数据掉电安全,采用类似于日志文件系统的设计思想。将Flash空间划分为5个区域,使用若干物理页面作为管理区,记录文件系统的安全写入和擦除操作。使用Freescale MK60硬件平台和MQX操作系统对该Flash文件系统进行测试和现场验证,结果表明,该文件系统资源占用少、可靠性高,能满足远程自动抄表系统数据存储要求。

For remote Automatic Meter Reading (AMR) systems that require high reliability data storage characteristics, a power failsafe and minimal footprint lightweight Flash file system is designed. The file system uses a hierarchical, modular, and cross-platform design and has great flexibility and versatility, and can be easily ported to a variety of resources limited platforms like ARM Cortex-M Micro Control Unit (MCU). For the realization of power fail-safe, a design method similar to the journaling file system is used. The Flash space is divided into 5 regions. Numbers of physical pages are used ...