基于51单片机的宿舍防火防盗系统设计与实现

摘要

In view of the larceny or fire of students' dormitory,which cannot be discovered in time,the system based on 51 single chip microcomputer,can find immediately the situation and give an alarm.The system takes STC89C51 microcontroller and sensor as major component,which use the data of smoke sensor and temperature sensor to achieve sound-light alarm,automatically ejecting smoke,temperature detection alarm and the human body detection alarm.The sensors collect data from somg detection and temperature detection,and then determine whether there is a fire by comparing with the preset threshold values.The human body infrared module can achieve whether people come into,and protect students property safety of the fire alarm.Compared with the traditional alarm system,the system has the characteristics of the alarm in time and low costcost.%针对学生宿舍时常被盗或发生火灾,而不能被及时被人发现,基于51单片机的宿舍防火防盗系统可及时发现灾情并立即报警等优点.该系统以STC89C51单片机和传感器为主要元件,同时利用烟雾传感器和温度传感器的数据实现火灾声光报警、自动排烟换气、温度监测报警以及人体监测报警功能.烟雾监测和温度监测都是通过传感器收集数据然后再与预设阈值对照从而判定是否发生火灾;利用人体红外模块实现人员是否进入,从而达到防火防盗且保护学生财产安全的目的.与传统的报警系统相比,该系统具有及时报警且低成本的特点.