Goal Line Technology Logan Mudlo Road Map What

Goal Line Technology Logan Mudlo

Road Map �What is goal line technology? �Why is it needed? �Famous occurrences of missed calls �Four different types of goal line technology �Wrap-up/Conclusion

What is goal line technology? �A method used to determine when the ball has completely crossed the goal line with the assistance of electronic devices and at the same time assisting the referee in calling a goal or not.

Why is it needed? �Disallowed goals have negatively impacted big games �It would make referee’s calls easier �It would eliminate controversial goals

Famous Occurrences � 2000 African Cup of Nations �Manchester United vs Tottenham in 2005 � 2009 Crystal Palace vs Bristol City � 2010 World Cup: England vs Germany � 2011 FA Cup: Chelsea vs Tottenham

Goal Line Technologies

Goal Minder �Founded by Harry Barnes and Dave Parden �Uses cameras that are mounted on the goal posts �Only gave visual evidence �Cheapest of the four goal line techs

Goal. Minder: Pros and Cons �Pros: �Very inexpensive �No digging up of the pitch �Cons: �Only works with visible balls �Takes up to 5 seconds

Cairos GLT System �Cairos Technologies �Uses four major components �Magnetic Field �Sensors �Receivers �Referee

Cairos: Pros and Cons �Pros: �Returns signal in 1/10 of a second �Ball doesn’t have to be visible � 99. 9% correct �Cons: �Only compatible with Adidas balls

Goal. Ref �Founded by Peter Mikelson �Very similar to the Cairos System �Uses same magnetic field sensors �Coils are added to goal frame �Creates a “light curtain” within the net �Sensors are placed between inner ball and leather

Goal. Ref: Pros and Cons �Pros: �Instant verification to referee �Ball can be hidden �Can be used with any ball �Cons: �Not great for TV

Hawk-Eye �First developed in 1999 by Paul Hawkins �Already in use during tennis and cricket matches �Uses six high speed cameras to triangulate the ball �Produces a graphical image of the flight path

Hawk-Eye: Pros and Cons �Pros: �Graphical image for TV �Cons: �Ball has to be 25% visible �High installation costs

Conclusion �Goal line tech will drastically help officials �Eliminate missed calls that affect the game �Use magnetic fields and cameras �Goal. Ref and Hawk-Eye are the two best candidates

References � "Football. " Hawk-Eye. N. p. , n. d. Web. 25 Mar. 2013. � "GLT System. " Cairos Technologies. N. p. , n. d. Web. 25 Mar. 2013. � "Goal-line Technology. " Wikipedia. Wikimedia Foundation, 24 Mar. 2013. Web. 24 Mar. 2013. � "Goalminder Technology. " Goalminder. N. p. , n. d. Web. 25 Mar. 2013. � "Hawk-Eye v Goal. Ref: The Pros and Cons of the Over-the-line Systems FIFA Are Testing. " By Martin Lipton. N. p. , n. d. Web. 25 Mar. 2013.