Design and Implementation of Intelligent Ear Tag for Dairy Cows in Farms

The cow signs monitoring system is an important part of the farm farming system. It is an important indicator point for judging the signs, diseases, estrus and milk quality of dairy cows. The existing discriminating method is to manually measure the rectal temperature, which is time-consuming and not suitable for large-scale breeding. In this paper, a smart ear tag based on WIFI is designed to measure the body signs of cows with body temperature and food intake. CC3200 is used as WIFI transmitter and processor, combined with high-precision non-contact temperature sensor TMP102 to measure the temperature of the ear, and the film pressure sensor measures the food intake, and realizes the body temperature and ear temperature difference compensation algorithm in the software. The ear tag sends the collected body temperature and food intake as a topic message to the MQTT server, and the display terminal receives the information by subscribing to the related topic message. Powered by button battery, CC3200 low power management, the life of the ear tag can reach more than two years. While saving manpower, it has improved the efficiency of dairy cow monitoring and has broad market value and application prospects.