Order fulfillment operator tracker

An order fulfillment workstation comprising:

• a plurality of receptacles in spaced arrangement, each receptacle defining an order fulfillment location at which an item may be picked from or put to;
• an optical device configured to capture image data at said workstation proximate said plurality of receptacles;
• an indicia coupled to an operator at said workstation, wherein said optical device is configured to visually recognize said indicia;
• and
• an order fulfillment control system in communication with said optical device and configured to receive image data from said optical device,
• said control system operable to determine a location of said indicia relative to said workstation based at least partially on the image data received from said optical device, and operable to verify whether an operator has completed an assigned pick or put operation at an assigned order fulfillment location based at least partially on the determined location of said indicia as the operator performs the pick or put operation.

A method for monitoring a location of one object in relation to another object with a position monitoring system to update a coordinate database, said method comprising:

• capturing image data of an indicia located on a first object with an optical device of the position monitoring system, the optical device disposed at a second object that is spaced apart from the first object, the optical device and second object each having a known location;
• transmitting the image data captured with the optical device to a control system;
• receiving the image data at the control system;
• determining, with the control system, a location of the first object relative to the location of the second object based on the image data received at the control system;
• and
• updating a database of location coordinates with the determined location of the first object.

A position monitoring system comprising:

• a first object disposed in an automated warehouse;
• a visible indicia disposed on said first object;
• an optical device disposed in the warehouse at a known location that is spaced apart from said first object, said optical device configured to capture image data of said indicia;
• and
• a control system in communication with said optical device and configured to receive image data from said optical device, said control system operable to determine a location of said indicia relative to the known location of said optical device based on the image data received at said control system.