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British Touring Car Championship Tracks Tires
EPC Gen 2 RFID tags built into the tires' sidewalls enable the race organizer to identify which tires a team uses during a race, and allows the manufacturer, Dunlop, to track its own tires through the supply chain.
Dec 31, 2009—All race cars competing in the British Touring Car Championship (BTCC) since late 2008 have used Dunlop tires embedded with RFID tags to track the usage of those tires by the team, thereby helping track which tires, and how many, were used—without requiring the car to stop. This deployment follows an initial pilot of the system during a race in 2008.
The BTCC, a car-racing series held each year in the United Kingdom, was established in 1958. The use of tires in the race is monitored to ensure that no team takes an unfair advantage by having more or better tires than another. Until 2008, the tires were tracked using a bar-code system provided by software company Datalinx, says Melvin Fletcher, the company's director.
The RFID-based tire-tracking system was developed by a collaborative group, including The BTCC, the Goodyear Tire and Rubber Co.'s Goodyear Innovation Center in Luxembourg, Dunlop Tyres—a British firm owned by Goodyear—and Datalinx. The tags not only enable the BTCC to electronically regulate tire usage during races, they can also be used to track when the teams stop for maintenance, thereby allowing the race organizer to make information available online to the media and fans regarding the vehicles and the tires they use.
The BTCC's tire rules stipulate that each competitor must use only specific tires allocated for the practice and race sessions for each set of races, says Robert Lionetti, Goodyear Innovation Center Luxembourg's principal engineer. Otherwise, some teams that select their own tires could attain an unfair advantage over others. All competitors are allowed 16 tires per race. By tracking each individual tire, the BTCC ensures that each car utilizes the correct and allocated tires at all times, and that all competitors adhere to the tire rules.
Prior to using RFID-tagged tires, the race staff had to manually record every serial number of each tire used in every practice session and race for each car, using pen and paper or bar-code scanners. The vehicle had to be at a standstill for that data to be recorded. To make this system more efficient and eliminate any human errors, such as recording the incorrect serial number for a specific tire, the group began developing an RFID system to replace the bar-code label that was scanned by employees when the vehicle was stationary. Dunlop began embedding tags on the BTCC-destined tires, and the Goodyear Innovation Center then built and installed RFID interrogators on both sides of the lane through which the cars pass. Those readers capture each tire tag's unique ID number as the vehicle enters the pit for maintenance, thus enabling the BTCC to reduce the number of individual inspectors required to manually track the tire ID numbers.
The first trial was conducted in May 2008, at the Thruxton circuit in the United Kingdom. Datalinx, which had already provided software to the BTCC for the management of race data, integrated the technology into its race-tire-management system.
With the system, UHF EPC Gen 2 RFID tags, manufactured by Hana Microelectronics, are built into the tire's sidewall during production at the Dunlop plant. The tags have been tested, Lionetti says, to ensure they can withstand the heat and pressure of the vulcanization process—the heating of rubber to improve its elasticity. Each tag is encoded with a unique ID number that can link to other data, such as the time of the tire's manufacture and shipping, as well as the team that will use the tire once it arrives at the BTCC. The tags are first read after being manufactured, and again when they enter the warehouse, when they ship to the BTCC and when they arrive at the race organizer's facilities—all with handheld readers designed by the Goodyear Innovation Center using off-the-shelf components.
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