基于51单片机红外迎宾及人数检测报警系统

AbstractInfrared doorbells are now commonly used at shop doors to greetcustomers.It can make a difference according to the situation of customers inand out.This paper mainly studies the application of infrared inductiontechnology in our daily life,namely the induction doorbell.Through thestudy of it,learn the principle of infrared proximity switch,circuit design andproduction process and the application of common components.Designresearch results show that the circuit design of this paper can achieveexpected,when people enter the speakers immediately send greetings,whileleaving suggest different greeting,increased the clock and DS18B20temperature detection,real-time can view the current time and temperature,and when the store too,through SIM800C modules to store the informationfeedback to the manager.Key words:infrared proximity switchWT588 voice moduleinfraredinduction doorbell