Intelligent animal husbandry monitoring method and system for large meadow

The invention discloses an intelligent animal husbandry monitoring method and system for a large meadow, and relates to the technical field of intelligent meadows, the method comprises the following steps: obtaining meadow image information of a target meadow and chip data of all livestock and poultry in the target meadow, the chip data being sent by electronic chips carried by the livestock and poultry; obtaining standard image information of all livestock and poultry in the target grassland based on the grassland image information; according to the standard image information, the daily weights of all livestock and poultry are measured and calculated; historical weights of all livestock and poultry are called from a preset weight database; calculating the body weight difference of all livestock and poultry by combining the body weight of the current day and the historical body weight; whether all the body weight differences exceed a preset difference threshold value or not is judged; if the weight difference