Patent attributes
Shelves or other fixtures may be used to support 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 load cells may occasionally fail to provide accurate information. Described are techniques for comparing the data from a first sensor with data from other sensors to determine if the first sensor has failed. A linear regression may be performed using the data from the other sensors, and the results compared with the output from the first sensor. If the difference exceeds a threshold amount, an error in the first sensor may be determined. Once determined, other actions may be taken, such as generating a repair ticket to fix the first sensor, disregarding weight from that sensor, and so forth.
