Abstract:For the large use of feed in livestock breeding industry currently, the large tonnage weighing sensor with high price is not very accurate, and the installation is not convenient, so a livestock feeding amount detection system is designed and developed. The system collects multi-point height values, indirectly calculate quantity volume by using the height values, for density imbalance of feed material tower, different heights corresponding feed material density factor is estimated through three-dimensional curve fitting, and then use the volume multiplied by the density to calculate real time feeding amount, verified by practical, the system error detection quantity is less than 3%.