系统实现对采集到数据的提取， PC上以折线图的形式实时显示、对应窗口中显示提取到实时数据、PC上自动备份采集数据的时间和数据信息。-System to achieve data extraction, PC in the form of real-time display, line graph corresponding to the window displays to extract real-time data, PC automatic backup time of data coll