Ultrasonic Intruder Detection System with Short Message Service (SMS) Feedback
[1]
Joseph Abiodun Amusan, Department of Physics, University of Port Harcourt, Choba, Port Harcourt, Nigeria.
[2]
Augustine Amadi, Department of Physics Electronics Technology, Faculty of Science Laboratory Technology, University of Port Harcourt, Choba, Port Harcourt, Nigeria.
Ultrasonic intruder detection System with SMS feedback is constructed. The system is used to detect any intruder around a restricted area and send a Short Message Service (SMS) feedback to the authorized personnel or the user of the device and also to sound an alarm to alert the immediate environment. The intruder system is built using a Global System Mobile (GSM) module as a feedback system, the power supply to the system is 220V ac. This voltage is stepped down by a transformer, rectified, filtered and regulated by a dc power supply unit and the regulated voltages are sent to other part of the circuit. The intruder is detected using an ultrasonic device which serves as the input unit. The signals from the input unit are fed into the control unit. The control unit is made with an AT98C52 micro controller chip which is programmed to send voltage and current to the output unit in other to control the output devices. The output devices are buzzer and a GSM feedback system. The buzzer is to sound alarm to the surrounding while the GSM module send SMS to a phone number programmed in the micro-controller chip. The device was tested and it functioned well. The device can thus find application in banks, companies among other places where security is paramount.
Ultrasonic, Detector System, Buzzer Alarm, Micro-controller, Short Message Service
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