DESIGN AND CONSTRUCTION OF AN INTRUDER DETECTOR NATIONAL DIPLOMA PROJECT REPORT
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Date
2008-10-19
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Publisher
Nuhu Bamalli Polytechnic Zaria
Abstract
This project is aimed at designing and construction of an intruder
detector to make impact or break through towards the technological advancement which serves as basis for any meaningful development. The circuit is generally an oscillator that generates an audio signal when a certain connection (wire) is broken. This circuit has an IC AN 7112
as its active component which is responsible for producing the oscillation. Other components like resistors. capacitors, switch, battery, and speaker also contribute their own quota in the design. The audio output signal is delivered to the loudspeaker. When the
connection is made. the circuit remains quite but the moment the connection is broken, a very loud audio sound is heard from the loudspeaker to alert you of what is happening. The purpose of the device is to detect the presence of an unwanted visitor who intends to smuggle into our houses, cars or valuables. It is my
sincere hope that this project will be beneficial to students in ND, N.C. E, technicians and any person who might be interested.