US Patent 11182739 Carrier tracking system and method thereof

A carrier tracking system is applied to a predetermined space. Carriers with optical recognizable marks are operating in the predetermined space, in which each of the optical recognizable mark is associated with information of materials carried by the carrier. The carrier tracking system includes at least one optical capturing device and a computing unit. The at least one optical capturing device is configured to capture images of the predetermined space. The computing unit is configured to determine an optical recognized coordinate of the optical recognizable mark in the images. The computing unit converts the optical recognized coordinate to a real-space coordinate in the predetermined space. In order to locate the carrier, the computing unit further associates the real-space coordinate with the information of materials carried by the carrier.