Harbin Institute of Technology at Shenzhen Shenzhen 518000;
The University of British Columbia Vancower BC Canada V6T 1Z4;
Harbin Institute of Technology at Shenzhen Shenzhen 518000;
Harbin Institute of Technology at Shenzhen Shenzhen 518000;
Automation; Single Chip Microcomputer; Apple Grading; Convolutional Neural Network; Air Jets;