By producing low magnetic fields around the goals, GoalRef
creates the radio equiva- lent of a light curtain. As soon as
the ball has wholly crossed the goal line between the posts,
a change in the magnetic field is detected. A goal alert is
then instantaneously transmitted to the game officials using
an encrypted radio signal, with a message displayed on their
wristwatches. The system uses a very small and compact
electronic device embedded in the ball manufactured by
Select (Denmark). Fraunhofer IIS has developed the GoalRef
technology in cooperation with the Danish company and
is currently working towards commercialization. „Products
based on the GoalRef technology have enormous potential