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How does RFID work? How does it actually measure?

RFID (Radio Frequency IDentification) technology is a wireless technology where special devices and chips communicate with each other. The device repeatedly emits electromagnetic pulses via antennas. When a passive chip appears nearby, it charges and sends back its identification, or other information. In the case of UHF RFID, it is even over quite a long distance (even more than 6 meters). It depends on the quality of the antennas, chips and obstacles between the antenna and the chip. Each chip has a unique EPC number.

The chips are either disposable (a chip on a paper strip, for example, placed in shoelaces or a disposable number) or reusable chips can be used that have competitors placed either on the wrist or ankle. Alternatively, it is possible to have the chips directly on the bike or in the number on the bike.

Once the chip is in the measuring zone, it sends its identification. RaceMeter records the chip identifier and time. Then it’s up to the system to know which chip (or chips) belongs to which competitor and evaluate the results. Our system can evaluate the results online – immediately after detecting the chip in the gateway. Even in the case of races that contain more than one measured section.
You can connect to the device using an Ethernet cable or wifi and view the results in a browser.