Method of displaying price tag information, apparatus, and shelf system

A price tag generating apparatus, comprising:

• a processor;
• and
• a memory configured to store instructions executable by the processor, wherein
• wherein a shelf system to which the price tag generating apparatus belongs further comprises a shelf and at least one display screen arranged on the shelf, and when executing the instructions, the processor is caused to:
• acquire an image of a commodity placed on the shelf;
• determine price tag related information based on the image of the commodity, wherein the price tag related information comprises price tag information of the commodity placed on the shelf;
• and
• send the price tag related information to a target display screen, wherein the target display screen is a display screen for displaying the price tag information in the at least one display screen, and the price tag related information is configured to allow the target display screen to display the price tag information;
• wherein
• the price tag related information further comprises display position information, and a linear coordinate system is established along a length direction of a placement board where the commodity is placed, the display position information comprises a length of the price tag information in the linear coordinate system, and a starting coordinate for displaying the price tag information in the linear coordinate system;
• and
• determining the price tag related information based on the image of the commodity comprises:
• determining the display position information based on a position calculation formula when an overlapping range between an arrangement range of the commodity and an arrangement range of the target display screen is within the arrangement range of the target display screen, wherein the position calculation formula is:
• L=Xm+(X−K)/2,
• wherein L is the starting coordinate for displaying the price tag information in the linear coordinate system, Xm≤L<Xn, Xm is a starting coordinate of the overlapping range in the linear coordinate system, Xn is an ending coordinate of the overlapping range in the linear coordinate system, K is the length of the price tag information in the linear coordinate system, and X is a length of the overlapping range in the linear coordinate system.