Training method of water depth data identification model, and water depth data identification method and device

The invention discloses a training method of a water depth data recognition model, and a water depth data recognition method and device. The training method comprises the steps that digits in a preset digit set are combined based on data attributes of water depth values in a sample grid chart, a plurality of digit sequences are obtained, and each digit sequence represents one water depth value; based on a preset template image, the character parameters of the water depth values in the sample grid chart and the target digital sequence, generating a candidate water depth value image containing the target digital sequence, the target digital sequence being any one of a plurality of digital sequences; performing fusion processing on the candidate water depth value image and the sample background image to obtain a sample water depth value image corresponding to the target digital sequence; and training a water depth data identification model based on the sample water depth value images respectively corresponding t