一种Holtek单片机的烟雾报警系统设计

Design of a Smoke Alarm System Based on Holtek Microcontroller

阐述一种以Holtek单片机为控制核心的设计。系统采用三端集成稳压器组成的电源电路系统、光电式烟雾传感系统、声光报警系统等构造的烟雾报警系统。给出的关键部分电路图和系统主程序的流程图,可以实现烟雾浓度检测、声音报警和光闪报警功能。系统具有检测灵敏、性能稳定等特点。

This paper expounds a design with Holtek microcontroller as the control core.The system adopts a power circuit system composed of a three terminal integrated voltage regulator,a photoelectric smoke sensing system,and a sound and light alarm system to construct a smoke alarm system.The key circuit diagram and system main program flowchart provided by it can achieve smoke concentration detection,sound alarm,and flashing alarm functions.The system has the characteristics of sensitive detection and stable performance.