FABRICATION OF AUTOMATIC FIRE FIGHTING ROBOT
Abstract : The fire sensor is using here to sense the fire. The fire sensor output is very low voltage so we amplified that voltage with help of differential amplifier. The object sensor senses the object and gives corresponding signals. These electrical signals are very small mill voltage signal, so it is given to amplifier circuit. The amplifier circuit is constructed with operational amplifier which acts as power amplifier. Finally the square pulse and fire sensor output is given to microcontroller. The micro controller may be ATMEL/PIC/RENESAS/ARM all are flash types reprogrammable controller. Already we have programmed in microcontroller the microcontroller run according to our objective. If any objectives related to smoke is there; the sensor detecting the smoke finds that one and gives the signal to micro controller. By which the robot movement is controlled now, the micro controller activates to the robot modal stop condition. And the same time microcontroller activates driver circuit so the solenoid valve is open for water pump. The keypad is used here to control the robot movement like as start and stop control. Similarly other robot actions are controlled. At the same time object sensor senses if the robot moves any direction means, automatically robot stop the movement and take right/left then moves on forward and again take a left/right direction. That means automatically crosses the object and move on same path.
? To address this existing problem, robotic systems have been introduced to offer possible alternative solution to fire disasters.
? This technique attempts to reduce the risk of losing human life during fire disaster.
? The purpose of this science investigatory project is to develop, design and fabricate firefighting robotic system equipped with sensitive flame sensors, avoidance mechanism, alarm and SMS capability.
? More sensors can be mounted to achieve a better performance and we can also reduce the reaction time detecting the fire source.
? The storage can be replaced with a water pipeline for extinguishing larger fire source.
? Digital image processing technique has been used with color video pictures and it could sense the flames.
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