DESIGN AND CONSTRUCTION OF A MICROCONTROLLER BASED SECURITY SYSTEM WITH INTRUDER POSITION DISPLAY

DESIGN AND CONSTRUCTION OF A MICROCONTROLLER BASED SECURITY SYSTEM WITH INTRUDER POSITION DISPLAY

Abstract

During the invention of security system alarms, in the early 80s technology of system shadow which involves lighten and sensing of objects was at that age found during their experiments using a special material know as light dependent resistor which its family lies in the resistance serials. The development of technology in the world today has yielded many design purposes to inventors depending in the requirements of their design. The growth of theft around the world has led to the inventions of different security system; from their came in the new technology know as intruder alarm security system. The intruder alarm security system alert is an electronic device which is use in different places in sensing intruders from the point of intrusion when installed in different points. When this device is powered, all the whole points of intrusion are then activated and are set for sensing. When the system is now active for work, if an intrusion occurs from any point in the device the display unit will display the point of intrusion and the system will setup an alarm till the person in charge reset the system. This circuit is constituted with different electronic components first is the programmable microcontroller(AT89s52) which is programmed for processing purposes, LDR which sense light and shadow when intruded, led illuminating device that lighten the light dependent resistor, the buzzer alarm, the LCD display that displays the position of the intruder, etc. this circuit has many application in homes, offices, factory protective areas, company restricted zones, in military zones, in residential areas etc. Theft detectors are also application of this device and are applied depending on the demand

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