Ripe Stage Classification of Chausa and Banganapallle Mango Using Fractional Order Colpitts Oscillator

Mango, being a senescent stage, perishes within few days after harvest and promises its maximum nutrition only its "ripe" hours. If not properly segregated at the beginning of supply-chain as per its exact ripe stages, even a single overripe mango can spoil the entire basket. Quick and reliable assessment of mango ripe stage in a compact and affordable way is the need of the harvester to consumer. This letter presents an electronic sensor based on fractional order Colpitts oscillator (FOCO) for ripe stage detection of two different species of mango, Banganapalle and Chausa. It presents a data model that simply classify mango ripe stage based on the FOCO output. The method is intrinsic, compact, and suitable for portable device. The test results based on 256 measurement provides overall precision and recall value 0.83 (Chausa) and 0.85 (Banganapalle).