The application provides a kind of
grain moisture content detection method, device,
combine harvester, equipment and medium, the method comprises: collecting the temperature of the environment where grain is located, the relative
dielectric constant and bulk weight of grain in a preset period;Based on temperature, relative
dielectric constant and bulk weight,
train through
grain moisture content detection model, obtain the
moisture content of grain in a preset period;Through the
grain moisture content detection model, periodically detect the
moisture content of grain.The grain
moisture content detection method provided by the application uses a nonlinear method of multiple influencing factors to regress and predict data, by considering multiple influencing factors, the fitting regression accuracy of the grain moisture content detection model is improved, and the moisture content of grain is periodically detected through the grain moisture content detection model, the moisture content of grain is stably detected for a long time, and the reliability is high, so as to improve the accuracy of grain moisture content detection as a whole.