Patent ID: 8032255

Claim:
A monitoring system for monitoring a bin level for an agricultural product, the system comprising: a bin for storing an agricultural product, the bin having an inlet and an outlet; a level sensor associated with the bin for detecting a particular reference level of the agricultural product and generating a calibration indicator; an input sensor associated with the inlet to determine an input rate of the agricultural product into the inlet of the bin; a conveyer for transporting the agricultural product through the outlet, an output sensor associated with the conveyer, the output sensor providing a status indicator that indicates whether the conveyer is in an active state or in an inactive state during one or more evaluation time windows; and a data processor for determining an output rate of the agricultural product based on the status indicator, the data processor comprising a level estimator for estimating an estimated bin level of the bin based on the input rate and an output rate, the data processor comprising a calibrator for calibrating the estimated bin level with reference to the particular reference level in response to the calibration indicator.