我单位有一无人值守的机房位于一高山山顶上，上山的路是600多级的台阶。因通信需要，有时要开关某些机器设备，操作上虽然简单，但要工作人员花10多分钟爬一趟山，不仅辛苦，而且拖延了时间。为解决此问题，本人利用89C2051单片机，设计了一遥控开关，在山下机房便可对山顶上的设备进行开关机-My unit is an unattended computer room is located in a mountain top of the hill, the road up the mountain is more than 600 steps. Due to their communication needs, sometimes you want to switch certain machinery and equipment operation, although simple, but the staff spent more than 10 minutes to climb a trip to Mountain not only difficult, but also delay the time. To solve this problem, I use 89C2051 microcontroller design of a remote control switch, can switch on the top of the hill on the equipment room at the foot of the mountain