一种新型自动气象站外接数据存储系统的设计  

Design of external data storage system for new automatic weather station

作　　者：刘艳中[1] 敖振浪[1] 

机构地区：[1]广东省大气探测技术中心,广州510080

出　　处：《电子测量技术》2015年第8期109-112,共4页Electronic Measurement Technology

摘　　要：新型自动气象站要求必须外接数据存储器以实现数据的双备份,并且要求数据以固定的文件格式存储,未到时次以时间和"-"字符填充以满足软件对文件的解读。设计了一种基于STM32F207的新型自动气象站选用MicroSD卡作为外接存储设备的整体方案,使SD卡生成的文件满足上述新型自动气象站文件格式要求,同时采取分时拷贝的方式避免了文件在初始生成过程中影响采集器正常数据采集的问题。试验结果证明在文件生成和读写过程中,采集器运行正常,采集次数未受影响,且SD卡生成文件数据与软件采集数据采样对比正确率百分百。An external memory is necessary to store data and status files for new automatic weather station.This fixed format files are filled with time and the character “-”when the time has not arrived yet.This paper introduces a solution that uses the asynchronous copy method to solve the problem that the station can not collect meteorological data normally when the SD card files are being generated.And the generated files meet the new automatic station file format.The experiment results proved that the collector works well and the collected times are not affected and the files sampling data is 100 percent right compared with the software data.

关 键 词：新型自动气象站 STM32 MICROSD卡 SPI总线 FATFS 文件系统 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]