Goal Line technology is a specialized system used in football, especially in high-level international tournaments. Goal Line is designed to help referees decide whether a ball has crossed the goal line or not. Let’s mitom Find out what Goal Line technology is through the article below.
1. Overview of Goal Line technology
What is Goal Line technology and how is it developed?
Goal Line GLT technology is a system that assists referees, determining whether a ball has completely crossed the goal line and is completely inside the goal. Thereby it helps to recognize or not recognize goals more accurately and quickly.
Before Goal Line was born, determining goals depended on the observation of the referee and assistant referees. This leads to many errors, causes controversy and affects the match results. Typical examples are Geoff Hurst’s phantom goal in the 1966 World Cup final or Frank Lampard’s goal that was not recognized in the match between England and Germany at the 2010 World Cup.
In 2010, FIFA began researching and testing systems to assist referees in determining goals. By 2012, the International Football Federation IFAB board officially allowed the use of Goal Line in Football Laws. By 2014, Goal Line was used for the first time at the 2014 World Cup, and it also contributed to correctly identifying a number of controversial goals.
Since then, Goal Line has been widely applied in major tournaments around the world such as World Cup, EURO, Champions League, Bundesliga, Serie A,… As for V League, it has not yet been applied because there are still many Related problems arise.
Goal Line technology uses a combination of specialized cameras, image analysis software and sensors in the ball depending on the system to track the position of the ball. Then accurately determine whether the ball has completely crossed the goal line and is completely inside the goal. Below are the specific steps in Goal Line’s operation process
2. Learn the operating principles of Goal Line technology
Goal Line technology has a relatively complex operating principle
About 14 specialized cameras are installed along the two horizontal lines of the stadium, 7 cameras on each side. These cameras have high resolution and high frame rate of 50fps, helping to capture detailed images of the ball’s movement.
Some Goal Line systems use sensors mounted inside the ball to more accurately track the position of the ball. This sensor can record the position of the ball at a frequency of up to 500 times per second.
Then, image analysis software, using advanced machine learning algorithms to analyze images from the camera, determines the position of the ball in each moment. The system creates a 3D model of the stadium and the position of the ball in real time.
Regarding goal determination, the system will compare the position of the ball at the moment it completely crossed the goal line with the position of the goal. If the entire ball has crossed the goal line and is completely inside the goal, Goal Line will automatically send a signal to the referee’s watch.
The referee will receive vibration signals and notifications on the wristwatch, helping them make decisions to recognize goals more quickly and accurately. Notably, the Goal Line system can determine goals within just 1 second, much faster than human response speed.
3. Some other knowledge about Goal Line technology
Goal Line is not the first technology used to assist referees in determining goals. Before it, there were several other systems tested, such as the Hawkeye system used in tennis. However, these systems are not as effective as Goal Line and are not widely adopted.
GLT system manufacturers are researching new ways to improve system accuracy and efficiency. For example, a number of systems are being developed that can track the position of the ball in 3D space with greater accuracy.
More and more technology is being used to support referees and improve the quality of matches. Some that are being researched and used include video referee assistance systems (VAR), player position tracking systems (TPS) and decision support systems (DAS).
Hopefully, after the above article, you know what Goal Line technology is? To understand more about it, you can go here mitom tv Because there are many matches where Goal Line is applied.
