Abstract: A low-powered (4.5-5 V) security alarming system using infrared sensor and detector mechanism has been constructed and tested. An IR transmitter (IR diode) and a receiver (Photo transistor) have been used. The system is connected to a multidirectional buzzer/siren or any kind of sounder to alert people from any threat to make sure the property is completely protected.
Kh. Asaduzzaman, M. Nazrul Islam, M. Shahjamal and Mahbubul Hoq, 2010. Infrared Security Alarming System. Asian Journal of Information Technology, 9: 243-247.