数字大棚自动控制系统以实现对温室大棚的监视、控制为主要功能，整合了大棚环境信息数据的实时采集和绘图统计、远程控制设备开关、远程摄像监控、短信报警等功能-Digital greenhouse automatic control system to monitor greenhouse, control as the main function, the integration of real-time acquisition and graphical statistics, remote con

QT 实时绘图 ,定时 产生随机数，根据随机数生成数据，将数据绘制成曲线(QT Curve realtime makes datas and datas can make curves)