One of the limitations of this system is that in order to read bar codes from the bottom of the belt, laser or camera arrays are placed below the gap between two sections of conveyor belt. Camera systems are replacing lasers due to their greater ability to read damaged or folded tags. In-line arrays are built into the baggage conveyor system and use a 360-degree array of lasers or cameras to read the bar code tags from multiple angles because baggage and the orientation of the bar code tag can shift as the bag travels through the conveyor belt system. There are two ways that bar code baggage tags are read: hand held scanners, and in-line arrays. This printed strip is then attached to the luggage at check-in, allowing automated sorting of the bags by bar code readers. These bag tags are printed using a thermal or barcode printer on an adhesive thermal paper stock. These tags became obsolete because they offered little security and were easy to replicate.Ĭurrent bag tags include a bar code using the Interleaved 2 of 5 symbology. Baggage tag number (composed of the two-letter airline code and six digits).Prior to the 1990s, airline bag tags consisted of a paper tag attached with a string. This agreement also established limit of liability on checked baggage. The Warsaw Convention of 1929, specifically Article Four, established the criteria for issuing a baggage check or luggage ticket. These are designed not to detach as easily as older tags during transport. Īt some point, reinforced paper tags were introduced. The lower half of the ticket was given to the passenger, while the upper half, with a hole at the top, was inserted into a brass sleeve and then attached to the baggage by a strap. The ticket showed the issuing station, the destination, and a consecutive number for reference. The first "separable coupon ticket" was patented by John Michael Lyons of Moncton, New Brunswick on June 5, 1882. Bag tag for a 1972 flight to Unalaska Airport on Reeve Aleutian Airways Invention
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