Fuzzy logic implementation in water quality monitoring and controlling system for fishwater cultivation
Abstract
Freshwater fish cultivation is determined by the water quality of temperature and acidity, which are 26oC - 30oC and pH of 6 - 8, respectively, based on research by Balai Pengembangan Benih Ikan Air Tawar (BPBIAT)[1], and turbidity level at 128 NTU maximum[3]. In this paper, water quality, in term of temperatue, acidity and turbidity, monitoring and controlling are carried out by applying the Mamdani method of fuzzy logic to a microcontroller-based system as data acquisition which is interconnected with a computer device as a processing device. The reading error rate of the temperature sensor and acidity (pH) sensor are compared with standard measuring instruments are 0.67% and 2.48%, respectively. The results of the turbidity level test ranged from 55, as not turbid, and 300 as turbid.The test was carried out to the hatching of goldfish eggs, which the result showed that the number of hatching was 96%.
