Method, apparatus, and system for detecting electrode plate winding gap

An apparatus for detecting an electrode plate winding gap, comprising:

• a width data receiving module, configured to acquire a first width of an anode region, a second width of a cathode region, and a third width of a protective region determined after electrode plates are cut, wherein the anode region covers a surface of a first electrode plate, and the cathode region and the protective region cover a surface of a second electrode plate;
• an image data receiving module, configured to receive sampled images that contain at least a part of edges of two sides of the first electrode plate, the second electrode plate, and a separator after winding;
• and
• a gap calculation module, configured to:
• determine a gap between the first electrode plate and the second electrode plate from the sampled images;
• and
• calculate a gap between the anode region and the cathode region as well as a gap between the anode region and the protective region according to the first width, the second width, the third width, and the gap between the first electrode plate and the second electrode plate.

A system for detecting an electrode plate winding gap, comprising:

• at least two groups of image acquisition devices, wherein the image acquisition devices are located on two sides of a winding needle, and are configured to acquire image information of edges of two sides of a to-be-detected sample formed after a first electrode plate, a second electrode plate, and a separator are wound;
• a processor communicatively connected to the image acquisition devices, wherein the processor is configured to receive the image information acquired by the image acquisition devices, and perform a method for detecting an electrode plate winding gap that comprises:
• acquiring a first width of an anode region, a second width of a cathode region, and a third width of a protective region determined after electrode plates are cut, wherein die anode region covers a surface of a first electrode plate, and the cathode region and the protective region cover a surface of a second electrode plate;
• receiving sampled images of edges of two sides of a separator, the first electrode plate, and the second electrode plate after winding;
• determining a gap between the first electrode plate and the second electrode plate from the sampled images;
• and
• calculating a gap between the anode region and the cathode region as well as a gap between the anode region and the protective region according to the first width, the second width, the third width, and the gap between the first electrode plate and the second electrode plate.