Automatic Sterilized Drinking Water System for Chickens Using Fuzzy Logic

Automatic sterilized drinking water system is designed to provide adequate supply of sterilized drinking water for chickens. The water is sterilized using a UV lamp to ensure the water is not contaminated with Salmonella bacteria which is then distributed to chickens automatically with fuzzy method. UV lamp irradiation was carried out for 18.627 minutes with a lamp intensity of 0.0136 mW/cm
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to obtain the highest dose of Salmonella bacteria needed for 15.2 mWsec/cm
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. The use of ultrasonic sensor HC-SR04 for reading the water level in tank and both water tube and then the readings are processed by the system to determine the work output. Fuzzy system is done by providing input water level on UV tank of 6 cm, Tube A of 5 cm, and Tube B of 4 cm, which then produces defuzzification results for output Valve Inlet of 4.40, Valve A of 5.60, and Valve B of 5.60. At several times of deffuzification, these values are then collected to be used as the ON/OFF determining value of the output with the ON determinant value is Z* lower than 4.5 and OFF is Z* greater than 6.5. System accuracy testing is also carried out by collecting the total error percentage from fuzzy testing, rule testing, and UV duration testing, then deviated by 100% in order to obtain a system accuracy of 94.944%.