2、相对高的数字式温度传感元件DS18B20作为温度采集器,单片机AT89C51作为主控芯片,数码管作为显示输出,实现了对温度的实时测量与恒定控制。[关键词]单片机;温度传感器;恒温;控制;报警TheDesignofRefrigeratorDoorShellShapingControlSystemBasedonSiemensWINCCElectronic Information Engineering WANG FengAbstract:ThesystemmakesuseofthesinglechipAT89C51asthetemperaturecontrollingcenter,u