摘要
设计了一种以单片机AT89S52为控制核心的小功率直流电机调速控制系统。系统的硬件部分主要包括控制电路、显示电路、电机驱动电路、输入电路、测速电路、电源电路几个主要部分组成。经制作,该系统实现了控制电机的启动、正反向转动、停止和分级调速,并通过液晶显示屏1602显示出当前电机状态。
Considering the advantages and characteristics of GSM, this paper applies GSM wireless communications technology into the home burglar alarm system. The alarm system uses a micro-controller AT89S52 as the control center and photoelectric sensor to detect. When there are intruders, the buzzer will sound as an alarm, the system can timely record the time of invasions. And because there are the introduction of GSM technology, the system can achieve real-time remote alarm.
出处
《现代工业经济和信息化》
2015年第6期67-68,共2页
Modern Industrial Economy and Informationization
