Goal-line technology will be introduced into the Premier League midway through the 2012-2013 season as it now has been approved by the International Football Association Board in Zurich. The next game that will be using it is at the December’s Fifa Club World Cup and if successful, at the 2013 Confederations Cup and of corse the 2014 World Cup. The people who are involved in the Premier League said they wanted it to be implemented as soon as possible. There will be two systems, one called Hawk-Eye and another GoalRef. Hawk-Eye’s system works by using 6 cameras, focusing on each goal, to track the ball on the pitch. The system then uses a “triangulation” method to pinpoint the balls precise location. If it crosses the goal-line an encrypted radio message is sent to the referee’s wristwatch to indicate a goal has been scored. The whole process takes less than a second to complete to keep in line with Fifa’s requirements. The second system called GoalRef uses a microchip planted inside the ball, and uses a low magnetic wave around the goal. The system then detects any change in the magnetic field on or behind the goal-line to determine whether a goal has been scored or not. This system also takes less than a second to keep within Fifa’s requirements.
To me it does seem quite a lot of effort that’s gone in, just to know whether or not the ball has passed the line. I’m sure the camera angle that you sometimes get shown would be good enough but I guess it’s all about the quickness, and less timewasting even though the game is full of it.
One comment I read was how it’s not clear on what kind of graphical representation of the technology will be shown. I do think this is quite necessary because the fans are going to want to see proof so a level of trust can be built on the technology.