Patent attributes
Shelves or other fixtures may be used to hold items at a facility. Load cells at the fixtures may be used to acquire weight data indicative of changes to the fixture as items are added or removed from the fixture. The fixtures, such as a freezer case, may include a door that when opened or closed results in air movement with respect to the shelves. This air movement may produce weight data that is erroneously indicative of a false event, such as a pick or place, even when no actual event has taken place. Weight data from load cells in the shelves may be analyzed to determine a correlation in the data from multiple shelves. If there is a high correlation in the changes to the weight data at multiple shelves, the weight data may be disregarded as being due to air movement.
