Patent ID: 8167111

Claim:
A method of calibrating the control system of a sortation conveyor, the control system having control logic for the operation of the sortation conveyor, the sortation conveyor having a plurality of shoes and a conveying surface, a sort induct sensor and a first shoe sensor, the control logic including a representation of spacial correlation between the sort induct sensor and the first shoe sensor, the method comprising the step of: a. placing the control system in calibration mode wherein calibration logic is executed; b. introducing a plurality of articles on the conveying surface upstream of the sort induct sensor and the first shoe sensor, each article of said plurality of articles having a respective leading edge; c. advancing the conveying surface so that the respective leading edge of each article is detected by said induct sensor; d. assigning one or more respective pushers to each article, having a respective first pusher; e. determining the respective distances between the respective leading edges of each article and that article's first pusher; and f. calculating a calibration value based on the respective distances which is indicative of spacial correlation between the sort induct sensor and the first shoe sensor.