Design and Implementation of VARMIT Control System in Food Storage Facility

Food storage facility have gained plenty of importance over a decades, due to the damages created by the rodents to the food stored in food storage facility unit, billions of people do not have an access sufficient and hygienic food which in turn affects the agricultural and economic growth of the country, hence to overcome these problems a model is designed that incorporates three main techniques to drive away the rodents from food storage unit or agricultural fields. The first technique is using an ultrasonic transmitter which continuously produces frequencies such at 40 kHz to distress the rodents (i.e., rats). The second technique has a voice playback system which generates sounds of cats, snakes etc., at regular intervals of time to frighten the rodents. The last technique is, with the help of a pair of passive infrared sensor (PIR) placed in and around the cage to detect the movement of the rodents. If a movement is detected by the PIR sensor 2 then the rodents is trapped inside the cage by closing the door automatically and simultaneously this information is sent to the monitoring unit and to the person in charge of food storage facility via GSM which displays the message “RODENT TRAPPED� in LCD and an alarm is triggered.