historical trend display的意思|示意

In the WebAccess configuration software, there are some functions have been designed, such as the real-time trend, the historical trend, group display, working menu, alarm management and report.

在网际组态软件中，设计了以下一些功能，如实时趋势、历史趋势、显示群组、工作画面、报警记录、报警摘要和值班、日、月报表等。

It generally includes data acquisition and control information transfer, historical data recording and trend display, warning recording and event processing, report generation and printing.

它一般由如下几个部分组成：数据采集与控制信息发送、历史数据记录与趋势显示、报警记录及事件处理、报表生成和打印等。