A series of tests have been made to validate the property of
the automated strawberry grading system. Through the tests, the
accuracy and real-time of the gradation algorithm compiled in the
present study are validated, and the precision and the success rate
of the mechanical parts are tested and analyzed. The “Tongziyihao”
strawberries used in the test were picked up in Changping, Beijing.
3.1. Strawberry size gradation test
According to Eq. (3), (50) strawberries were tested; the error
between the actual size and the measured size is within 5%
(Table 1), which proves that Eq. (3) is viable.