Construction of a car touch intruder alarm Department:Electrical Electronics Engineering By: francis05 Project ID: 683 Rating: (2.9) votes: 22 Price:₦3000 Get the Complete MaterialAbstractThe main objective of this project was to ensure proper security to a car being parked in a garage against theft or an intruder. The circuit uses three NE555 timers one of the NE555 was wired as a monostable oscillator and the remaining two were wired as a tone generator and amplified to obtain a maximum audible sound. However, pin 2 of the first NE555 was used as a sensor part.W hen pin 2 has contact with the human body or hand it will activate the IC1 which will also bias transistor and this transistor was wired in a way that once it is powered it will close circuit thereby passing a negative supply voltage to tone generator circuit and outputted out through a loudspeaker or buzzer. This device functions as a major security device against car-theft as stated above. It is an electronic device that is connected to the battery of the car it is being installed in and gets activated when the car engine is switched off and the car stationed at a place. The device is not seen but, it has an indicator light which shows that the alarm has been activated. When the body of the car is touched by human hand, it sends a negative signal to the device which needs a negative pulse to get activated it sends this negative from the human hand to the tone generator IC which triggers the alarm. ...Preview Download Preview +Other Electrical Electronics Engineering project topics and materials you might be interested in»The construction of a 2kva automatic voltage regulator (AVR)»Generation of Constant Power Supply from a DC Source»Design and construction of a digital clock with calendar»Construction of digital AC power controller»A remote controlled AC fan speed regulator using discrete integrated circuit»Remote controlled antenna»The construction of automatic voltage inverter and a battery charger»Design of 2.5kw automatic voltage regulation with seven segment display»Simple sensitive touch alarm»Construction of a car touch intruder alarm»Design and construction of 2KVA inverter»Design and construction of 5kva power inverter»Design and installation of 200 WATT solar power system»Design and construction of an automatic change over switch»Construction of a battery charger