Dynamic pick wall/put wall

A method of monitoring retrieval and/or placement of items from storage locations and a position of a repositionable divider provided at a shelf within a storage facility having a workflow control system comprising a computer, the repositionable divider positioned as to provide a divider between two storage locations of the shelf, said method comprising:

• providing, at the control system, an initial position of the repositionable divider relative to the shelf;
• moving the repositionable divider from its initial position at the shelf to a different position along the shelf;
• measuring the different position of the repositionable divider with a sensor array that is disposed at the shelf and in communication with the control system, wherein the sensor array is configured as an elongate strip extending along the shelf and having integrated therewith a plurality of time of flight (ToF) sensors and a plurality of lights extending along said strip and in communication with the control system, and wherein said ToF sensors are adapted to measure a position of the repositionable divider;
• determining with the control system that the repositionable divider has been moved based on information received from the sensor array;
• associating with the control system selected ones of said lights with each of said storage locations based on the determined position of the repositionable divider whereby the lights are configured for indicating which said storage location items are to be retrieved from or placed at;
• and
• determining when an item has been retrieved from or put to a storage location based on information received from the sensor array.

A method of monitoring widths of storage locations of a shelf of a dynamic storage wall by determining a position of a repositionable divider of the shelf and representing a width of each storage location with a lamp strip mounted adjacent the shelf, said method comprising:

• providing a default map of each storage location along the shelf;
• illuminating corresponding lights on the lamp strip adjacent each storage location to indicate the default map of storage locations to an operator, each storage location delineated with a different light pattern;
• monitoring the storage wall with a time of flight (ToF) sensor array;
• determining if the divider has been moved along the shelf to a new position with the time of flight (ToF) sensor array;
• if it is determined that the divider has been moved, determining the new position of the moved divider by measuring, with the ToF sensor array, a distance from a known location to the new position of the moved divider;
• updating the map of storage locations based on the new position of the moved divider;
• and
• illuminating corresponding lights on the lamp strip adjacent each storage location to indicate the updated width of storage locations to an operator, each storage location delineated by with a different light pattern.