Detection and positioning method for train water injection port

A detection and positioning method for a train water injection port, comprising:

• acquiring continuous train water injection port video images, and performing a threshold segmentation on the continuous train water injection port video images to obtain binarized train water injection port video images;
• processing the binarized train water injection port video images and matching the processed binarized train water injection port video images with a train water injection port template image;
• detecting a position of the water injection port in the processed binarized train water injection port video images and comparing the position with a pre-set position range, wherein the water injection port is located in the pre-set position range;
• and
• if the position and the pre-set position range have been matched, then transmitting a matching valid signal to a mechanical device control module to control a mechanical device to move or stop and start or stop water injection.