数据记录仪在无人值守实验环境中的应用  

Data Recorders for Unattended Experimental Environment Application

作　　者：谢拴勤[1] 石伟[1] 张磊[1] 张震[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《计算机测量与控制》2011年第8期2016-2018,共3页Computer Measurement &Control

摘　　要：为了实现蓄电池充放电过程中自动记录参数,开发出了数据记录仪;采用多线程编程(Protothreads)技术,将数据采集、提取时间信息、存储文件、系统监控任务划分为四个独立线程;调用通用的文件系统模块FatFs,将蓄电池试验中的电压、电流、温度及时间参数数据以逗号分隔值(CSV)文件格式组成文件,通过SPI总线将记录文件存储到SD卡中;经过实际运行,记录仪运行稳定,记录参数符合要求,具有一定的推广意义。To realize recording parameters automatically duaring the battery charging and discharging process, data recorder was developed. Data collection, extracting time information, storing files, and system monitoring task was divided into four independent threads by multi--threads programming technology （Protothreads）. Then, general file system module named FatFs was called to form files with volt- age, current, temperature and time parameters in battery test as Comma Separated Value （CSV） format, and all the datas were stored in SD card through SPI bus. Practical operation shows, it works well and conforms to the requirements, also, it has certain significance for popularization.

关 键 词：数据记录仪 多线程编程 FATFS CSV格式文件 SD卡 

分 类 号：TP338.2[自动化与计算机技术—计算机系统结构]