红外声控报警系统的设计

仰恩大学毕业设计（论文）AbstractThe infrared voice alarm system is composed of a central controller,infrared sensors,voice-activated sensors,alarm devices and keyboardparts.Controller using microcontroller AT89C52,infrared sensing partof the integration of infrared transmitting and receiving electro-opticalsensors TCRT5000,voice-activated sensor part of the use of electretmicrophone,speakers and light-emitting diodes as the alarm equipment.Microcontroller through the infrared sensor part and the voice-activatedsensor part of the coming changes in the signal to determine whether thereare outsiders,if sent through the speakers or the diode to the police;infrared sensors,infrared emission through the launch tube to thereceiving tube,two between elements of a connecting via infrared,whenthere are objects stand in the middle,they then pass on the changes inlevel microcontroller;Similarly,voice-activated sensor is convertedinto electrical signals into acoustic signals and then transmitted to themicrocontroller;keyboard is used to set the alarm trigger conditions.Keywords:microcontroller;assembly language;infrared sensor;voice-activated sensor;AT89C52