- Plan 1: owner + pet only
the owner can only have an ID card, and his pet can also be the only one.
but as soon as the pet changes, such as transfer, gift, or get lost.
this makes it difficult to track that the pet after the change is the same as the pet before the change. - Plan 2: image recognition
is similar to face recognition, but the current technology is not enough, and most pets are too similar to recognize.are there other options? DNA? It"s not very realistic, is it?