Chris Wright reports on phys.org the new goal line technology that will by used in Brazil. It is unhackable and ‘100%’ accurate. However, the final call is still up to the referees.
World governing body FIFA awarded the contract to the German company (GoalControl) 16 months ago and there will be 14 high-speed cameras at each of the 12 World Cup stadiums to determine if an attempt on goal has crossed the line or not.
There are seven cameras trained on each goal and the cameras each take 500 pictures per second, sending a “GOAL” message to the referee’s watch if the ball is in, GoalControl chairman Bjoern Lindner explained.