Tab image acquisition device, system, and method

A tab image acquisition device, comprising an image acquisition apparatus, wherein the image acquisition apparatus comprises:

• a first mounting plate, movable in a first direction;
• a second mounting plate, movable in a second direction, wherein the second direction intersects with the first direction;
• a camera assembly, installed on the second mounting plate;
• and
• a prism module, installed on the first mounting plate,
• wherein the first mounting plate is movable in the first direction by a first driving mechanism, and the second mounting plate is movable in the second direction by a second driving mechanism, and the second driving mechanism is mounted on the first mounting plate;
• wherein the prism module has a reflective surface, and the reflective surface is configured to change an angle of an incident light beam on a tab whose image is to be acquired, so that the incident light beam enters the camera assembly;
• and
• wherein the prism module comprises:
• a telescopic cylinder, installed on the first mounting plate, wherein a telescoping direction of the telescopic cylinder is a third direction, and the third direction intersects with both the first direction and the second direction;
• and
• a prism body, installed on the telescopic cylinder, wherein the reflective surface is provided on the prism body.