Goal Line Technology aims to accurately determine if the ball has crossed the goal line through various methods. It was introduced after controversial calls where goals were missed. Two main types are Hawk-Eye, which uses high-speed cameras to track ball movement, and the Cairos System, which embeds sensors in the ball and goal area that communicate to determine the ball's location. Both systems aim to provide instant notifications to referees of whether a goal has been scored to resolve disputes.

1. Goal Line Technology
MOHIT CHAUHAN
UE115059

2. CONTENTS
• Introduction
• What it is?
• Why we need this technology?
• Types of Goal Line technology
• Our Conclusions.

3. Introduction
• We in our group had
discussed several topics over
a period of days.
• Goal Line Technology has
been debated over the years
whether it should be
introduced into the
footballing world or not.

4. Introduction Continued….
• Over the years, there have been several
incidents were a wrong decision has been
given like Frank Lampard for England against
Germany or goalkeeper Roy Carroll for
Manchester United against Tottenham.
• And finally this year the technology was
introduced on the biggest stage of football i.e.
FIFA WORLD CUP 2014.

5. WHAT IT IS ?

6. What is Goal Line Technology?
• Goal line technology a series of methods to
accurately give a decision whether the ball crossed
the goal line or not.
• These methods will help FIFA with the disputes that
fans and players have with a goal being disallowed.

7. Why we need goal line technology ?
Germany vs England, FIFA WORLD CUP , 2010

8. Duisburg FC vs FSV Frankfurt, Bundesliga

9. Types of Goal Line Technology
The types of Goal Line Technology are:
• HAWK-EYE: TRACKING BALLS IN FLIGHT
• THE CAIROS SYSTEM– A MICROCHIP IN A MATCH BALL

10. HAWK-EYE: TRACKING BALLS IN FLIGHT
• The Hawk-Eye system , first
developed in 1999 by Dr. Paul
Hawkins
• This system makes it possible to
track the trajectory of balls in
flight with a high degree of
accuracy.
• The system is based on the
principle of triangulation using the
visual images and timing data
provided by high-speed video
cameras placed at six different
locations around the area of play.
• This ensures that the goal is
detected at times when players
are huddled together at the goal
mouth (for example, corners).
• As long as the ball is 25 percent
visible, Hawk-Eye can track it.

11. HAWK-EYE: TRACKING BALLS IN FLIGHT
• As soon as the system
detects that the ball has
crossed the goal line, it
instantaneously sends a
signal to the official’s watch.
• The watch has been
developed exclusively for
Hawk-Eye by industry
leaders Adeunis.
• It is technically possible to
also provide a “near miss”
signal to the watches so the
referee also receives a
positive confirmation that
the ball did not cross the
line in a close incident.

12. THE CAIROS SYSTEM– A MICROCHIP IN A
MATCH BALL
• The second goal-line technology under consideration is that
produced by German company Cairos Technologies AG in
collaboration with Adidas.
• The Cairos system involves embedding thin cables in the turf of
the penalty area and behind the goal line.

13. THE CAIROS SYSTEM– A MICROCHIP IN
A MATCH BALL
• The electrical current that runs through the
cables generates a magnetic field.
• A sensor suspended in the ball measures the
magnetic fields as soon as the ball comes into
contact with them and transmits data about the
ball’s location to receivers located behind the
goal that relay the data to a central computer.
• The computer then determines whether the
ball has crossed the goal line. If so, a radio
signal is transmitted to the referee’s watch
within a split second.

14. Comparison between the working of HAWK-EYE & CAIROS SYSTEM

15. CONCLUSION
• The goal line technology proved its worth in
the FIFA WORLD CUP 2014 by correctly
detecting this goal.