historical database

After that we analysis the acquired datas and put the analysed datas into the performance database. We propose an aggregation method to solve the problem of mass data storage which makes the platform can not show only the real-time data but also historical data.

针对庞大的数据存储的问题，设计了数据汇聚的方式，使得平台既能显示实时数据又能对历史数据进行分析。

Research and development of historical database in SCADA system

电网监控系统（SCADA）历史数据库的研究与开发

Network security log file database is a kind of historical database.

网络安全日志数据库是一种历史数据，对它的分析具有十分重要的实际价值。

Thirdly, as the core of monitoring software, data management system is composed of configuration database, real-time database and historical database.

数据管理系统是监控软件的核心，它分为组态数据库、实时数据库和历史数据库三部分。

First, a set of HMMs are trained with historical process data to construct a database. Each HMM corresponds to a fault.

首先，使用过程历史数据训练得到各种过程故障工况对应的HMM；

Data collection for the whole process and data storage in real-time database and historical database;

全程数据采集，实时和历史数据库进行数据存储；

Users can query the database easily by the friendly user interface and the historical curve, two-dimension temperature distribution, three-dimension temperature field are served as analysis of temperature data.

系统对串口采集的温度数据构建数据库，通过良好的人机交互界面实现对数据库的查询，并通过绘制历史曲线、二维温度分布及三维温度分布场，对温度数据进行分析。

Establishment of Guangxi Mesoscale Physical Quantities Diagnostic Historical Database

中尺度物理量诊断历史资料库的建立

Comprehensive historical operational data, database data and the evaluation of the theoretical calculation of energy consumption data, at different levels to control the KPI targets set as the target value of each level.

综合历史操作数据、数据库中的评价数据以及能源消耗的理论计算数据，在不同层面设定控制KPI指标作为每个层面的目标值。

Malfunction Analysis and its Application based on Historical Database of Electronic Strap Scales in Strap-transferred Coal-burning System

基于电厂输煤电子皮带秤历史数据库的故障分析及其应用

The growth of the data quantity of the historical database influences the inquiry speed;

历史数据库数据量的增长影响查询速度；

Construction Experience Database System of Historical Projects

历史项目建设经验数据系统的研究与实现