基于单片机的室内安全报警系统设计

Design of Indoor Security Alarm System Based on Single ChipComputerAbstractWith the improvement of the quality of life and the level of technology,more and morepeople are concerned about the importance of indoor security alarm systems,especially forthe detection and alarm of home fire prevention and burglary.However,traditional indoorsecurity alarm systems generally use manual collection and inspection.In this way,theefficiency of this method is extremely low,time-consuming and laborious,and the existinghuman factors will cause the inaccuracy of the data.The indoor security alarm systemadopting single-chip technology and GSM communication technology solves the problems oflow efficiency and low accuracy of the traditional manual detection method,and makes thesecurity detection more intelligent.The design of the indoor security alarm system based onthe single-chip microcomputer also came into being.This system uses STC89C52 single-chip microcomputer as the control core,which isintended to collect the real-time smoke concentration of the indoor environment through thesmoke sensor.The pyroelectric infrared sensor detects the intruder in real time.It has firealarm and one-key alarm functions.When it is detected that the smoke concentration exceedsthe set alarm threshold or a theft is detected,the alarm mechanism can be activated,thebuzzer can sound,and the GSM module sends an alarm message to the user's mobile phone.Using single-chip technology and GSM communication technology to achieve real-timemonitoring and alarming of indoor fire prevention and theft has far-reaching significance andpractical application value for the establishment of security systems.Keywords:Indoor security alarm system;GSM communication technology;STC89C52 single chip microcomputer;pyroelectric infrared sensor