摘要： 计算机控制系统中历史数据的存储和查询是一个重要的功能。文章提出使用不固 定的周期对原始信号进行采样存储，为其设计了以B树为基础的存储结构，并对其查询性能 作了分析。

关键词: 历史数据, 存储, B树

Abstract: The storing and querying of historical data is an important function in the computer control system. This paper suggests using variable cycle to sa m ple and store the original singnal. It also designs a structure based on B-tre e to store the data and analyzes the performance of querying operation.

中图分类号: 

• TP311.12