Soccer Goal Line Technology
Soccer Goal Line Technology

There has been a need for goal line technology in soccer, particularly as TV replays are showing in retrospect wrong decisions by the referee. The International Football Association Board (IFAB) has laid down four criteria that they want to see in goal-line systems:

* The technology should only apply to goal-line decisions.
* The system must be 100 per cent accurate.
* The signal sent to the referee must be instantaneous.
* The signal is only communicated to the match officials.

A promising prospect has been a "smartball" loaded with an computer chip, jointly developed by German companies Cairos Technologies and the Fraunhofer Institute for Integrated Circuits, an engineering research and software development company, along with the Adidas athletic clothing and shoe company. The companies' technology uses a network of receivers around the field designed to track the ball's precise position in real time - including exactly when it has fully passed the goal line. That information would be relayed in less than a second to a watch-like device worn by the referee. However, this system has had its setbacks, and another system using, The Hawk-Eye, is being looked at.
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