 |
|
|
When the runner reaches the finish and charges through the gate this signals the moment for the technology to move into top gear: the chip in the start number has a memory function and is coupled with a coil made up of several turns of wire. The transponder – otherwise referred to as the bibchip – is logged by the gate and transmits its data.
When a bibchip enters this field voltage enters the bibchip coil. This is rectified – inductively coupled – and is used to supply energy for the chip. This explains why the bibchip doesn’t require a battery.
As this transmission requires very little energy, ranges of up to 1.50 metres are possible guaranteeing 100% accuracy of measurement. bibchip sets the gates at a distance of 1.25 metres as the athletes cross the finish line at high speed and this allows up to 800 athletes a minute to cross the finish line. Another key reason for selecting this distance is to ensure the permitted level of radiation emitted to humans remains significantly below the permitted thresholds.
As the area of the antenna is crucial for the bibchip's range it is important to avoid bending or folding the bibchip.
|
|
Contact
