Patent ID: 11878328
Assignee: JIANGSU UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 3:
4. The color sorting method for the small-grain agricultural products combining the area scanning photoelectric characteristic and the line scanning photoelectric characteristic according to claim 1, wherein in step II, a method for calibrating the corresponding relationship between the line scan signal pixel and the position of the pneumatic sorting nozzle is as follows, wherein the line scan area of the line scan positioning camera has a width of W equal to a horizontal scan area of the area scan camera, and a single line scanning comprises H pixels; a length of a total effective range of a pneumatic nozzle array is equal to that of the line scan area, a center line of an effective area of the pneumatic nozzle array is parallel to the line scan area, and a height difference between the center line and the line scan area is h2; and it is assumed that an effective pneumatic interval length of each pneumatic sorting nozzle q_j is E pixels, a number of nozzles R1 required for the pneumatic nozzle array to effectively act on the line scan area with a number of pixels of H is as follows:
first, when a remainder of H divided by E mod (H/E)=0, the number of required pneumatic sorting nozzles R1=(H/E), an effective working interval of the j-th pneumatic sorting nozzle is [(j−1)*E+1, j*E], and j∈[1, R1]; and
second, when the remainder of H divided by E mod (H/E)≠0, the number of required pneumatic sorting nozzles R1=floor (H/E)+1; when j<R1, the effective working interval of the j-th pneumatic sorting nozzle is [(j−1)*E+1, j*E]; and when j=R1, the effective working interval is [floor (H/E)*E+1, H], floor (H/E) represents an integer part of H divided by E, and j∈[1, R1].