Watermelon ripeness determination using acoustic method and fuzzy logic

A non destructive classification watermelon ripeness using acoustic wave and fuzzy logic is designed in this research. The watermelon weight and propagation frequency of acoustic wave inside watermelon are defined as the input variables. Percentage of watermelon ripeness is defined as the output variable. Acoustic waves were measured by knocking and tapping with and without test base and the output sound is detected by using microphone. The fuzzy rules are designed based on interviewing human experts. Some samples are tested using this system confirmed that, fuzzy logic is able to determine watermelon ripeness. From the findings, it shows that the best model produced an accuracy of 91.38%.