What is football goal line technique?

What is football goal line technique?

Football is the most famous game in the world and this game is played in most countries of the world. However, despite being such a famous game, only 32 countries have managed to participate in the World Cup of Football. Because it is very difficult to qualify for the World Cup of this game which is held every four years.

There are many rules related to this game, which is played in a period of 90 minutes, and a few years ago, the rule of using 'goal line technology' was also added to the rules of this game.

Information about the rules related to football games

In football game, there are total 11 players in a team and this game is played between two teams. According to the rules of this game, the team that manages to score the most goals out of the two teams wins the game. However, scoring a goal is not such an easy task and the goalkeepers of both teams work hard to prevent the goal.

When the ball is hit by the striker of one team (who scores the goal), the goalkeeper of the other team tries to stop the ball with the help of his feet and hands.

According to the rules, if the football goes over the goal line, it is considered a goal. At the same time, if the goalkeeper stops the football from crossing the goal line, then it is not considered a goal.

Whether the ball has crossed the goal line or not is decided by the referee and many times the referee gives the wrong decision. Because they cannot know whether the ball has crossed the goal line or not. And in order to eliminate this dilemma of the referee, the rule of using goal line technology has been added in this game.

What is Goal Line Technology?

Goal line technology includes many types of technology and with the help of these technologies, it is found that during the playing of football, the football kicked by the striker to score a goal has succeeded in crossing the goal line i.e. the goal line. Yes or no.

Why is this technology needed?

In this game, it has been seen many times that the ball is stopped by the goalkeeper by coming near the goal line. However, it becomes difficult for the referee to find out whether the ball has been caught near the goal line by the goalkeeper or after crossing the goal line. And to deal with this problem, this technology has been included in this game.

How Does Goal Line Technology Work?

With the help of goal line technology, the referee gets the information within just one second whether the football has crossed the goal line or not.

Under the goal line technology, a watch is worn by the match officials and the referee and as soon as the ball crosses the goal line, the signal of this is received with the help of the referee's watch. After receiving this signal, the referee then gives his decision.

This technology works so fast that the signal reaches the clock within just one second of the ball reaching the goal line.

Technology used in goal line technology

When there was talk of bringing goal line technology in this game, nine types of technology were tested at that time. After which FIFA and the International Football Association Board selected two technologies out of these 9 technologies and the technologies that were selected were Hawkeye and Goalref technology.

After receiving the approval of FIFA and the International Football Association Board, Hawkeye and Goalref systems are now being used in football. However, according to the rules related to football, it is not necessary that these techniques are used in every match.

Hawk Eye

About 14 cameras are used in Hawk Eye technology and this technology was created in the year 1999. Under this technique, high speed video cameras are used and these cameras are installed on the ground. High-speed cameras track the ball and use triangulation to calculate the exact position of the ball relative to the goal line.

Triangulation i.e. triangle is a geometric technique which helps in calculating the distance and position of the ball and therefore the high speed video camera installed on the field is installed in triangulation form.

With the help of the software used in Hawk Eye technology, the ball is tracked and the direction in which it will go can also be estimated. You people must have seen many times that in a cricket match, the path of the ball is shown through graphics and the direction of the ball is detected only with the help of Hawk Eye technology.

Under Hawk Eye Technology, if the ball completely crosses the goalmouth, an encrypted signal is received within half a second through the referee's watch or earpiece. After which the referee takes his decision.

This technology has recently been introduced in this game, but in other famous games like cricket and tennis, this technology has been used for a long time.

GoalRef

In this technique, a passive electronic circuit is placed inside the ball. While a low frequency magnetic is applied to the goal mouth, which consists of three copper coils.

As soon as the ball crosses the goal line, the antennas around the goal mouth change their magnetic fields and send the data to the computer. After which the computer software determines whether the ball has crossed the line or not. If the ball has crossed the goal line, then the signal of this by the computer is received by the referee within half a second through the watch worn by him.

When was this technology used (Goal Line Technology in Premier League)

In December 2012, FIFA announced that it would introduce goal-line technology at the 2012 FIFA Club World Cup in Japan. After which Hawk-eye technology was used for the first time in Toyota Stadium. At the same time, goalref technology was used in the International Stadium Yokohama.

Added a new technique

In April 2013, FIFA announced that GoalControl, a camera-based system, would also be used during football games. After which goal control technology was used for the first time in the Confederations Cup in 2013. With the help of this technique, the information about the goal can be obtained within a few seconds and this is also a successful technique.

Goal line technology proved to be effective

Currently, goal line technology is being used in many leagues related to football matches and this technology is proving to be very effective. At this time, most of the clubs related to football have also adopted this technology. In 2016, for the first time, this technique was adopted in the final match of the UEFA Europa League, so that no wrong decisions were taken in this match, while this technique was also used in the matches of the UEFA Champions League, European Championship. has gone

According to the FIFA website, 144 stadiums have been licensed to install goal line technology and all these stadiums have adopted the Hawk Eye technology.

This technology is quite expensive.

Using goal control, hawk eye and goal ref technologies that come under goal line technology costs a lot. Due to which this technique is used only at the top level of this game.

How expensive these technologies are can be estimated from the fact that it costs about $260,000 to install goal control and Hawk Eye technology in a stadium. Due to the high cost of this technology, FIFA has not made it mandatory in its rules to use this technology in every match.

It is not necessary that the correct decision is taken by the referee every time and it has been seen many times that wrong decisions have been taken many times in many football matches due to the lack of technology. Due to which not only the image of this game but also the feelings of people have been hurt. That's why FIFA approved the goal line technology a few years ago so that no wrong decisions are taken in this game. At the same time, through goal line technology, the referees are getting a lot of help in making the right decision.