Patent ID: 11908127
Assignee: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The IoT system of claim 1, wherein the management platform is further configured to:
take image data at an upstream of the production line in the adjacent second image data as upstream image data, and image data at a downstream of the production line in the adjacent second image data as downstream image data;
obtain edge data in the upstream image data as upper edge data, and obtain the edge data in the downstream image data as lower edge data; filter out an edge that does not exist in the upper edge data from the lower edge data as a difference edge; and
select, from the downstream image data, a pixel whose a pixel value difference with pixel value of the upstream image data is greater than a preset value as a preselected pixel, and filter out, from the preselected pixel, a pixel related to the difference edge to form the first image difference data; wherein the pixel related to the difference edge refers to the pixel located within a closed difference edge or between the difference edge and a graphic boundary.