设计了一种基于存储芯片的小型数据备份算法,并且在多款单片机系统下实现。本文介绍的小型数据备份算法使用了时间点和存储位置的映射关系,使得数据存储和查询都简洁快速,无需使用多重循环在整个芯片范围内查找存储位置和查询点,有效克服了单片机资源有限、处理速度慢的缺点。本算法在某综合气象数据采集器中得到了成功使用,从200台采集器连续运行2年的情形来看,数据的存储效果良好,数据的读取和存储方便快捷有效。

A small data backup algorithm based on memory chip is designed and implemented in many single chip microcomputer systems.The small data backup algorithm introduced in this paper uses the mapping relationship between time point and storage location, which makes data storage and query simple and fast,and does not need to use multiple cycles to find storage location and query point in the whole chip range,effectively overcoming the bottleneck of limited resources and slow processing speed of single chip microcomputer. This algorithm has been successfully used in a comprehensive meteorological data collector.From the situation of 200 collectors running continuously for two years,the data storage effect is good,and the data reading and storage are convenient,fast and effective.