Goal Line Technology

MOHIT CHAUHANUE115059

CONTENTS

• Introduction

• What it is?

• Why we need this technology?

• Types of Goal Line technology

• Our Conclusions.

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.

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.

WHAT IT IS ?

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.

Why we need goal line technology ?

Germany vs England, FIFA WORLD CUP , 2010

Duisburg FC vs FSV Frankfurt, Bundesliga

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

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.

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.

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.

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.

Comparison between the working of HAWK-EYE & CAIROS SYSTEM

CONCLUSION

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