Football stadium increased camera monitoring bid farewell to the door line [Full text]

Recently, the International Football Council held a vote to consider whether to allow the introduction of "Eagle Eye" and "Goal scoring" technology in football matches. Eventually, four representatives from FIFA and four other players from England, Scotland and Wales respectively. The board of directors composed of representatives of Ireland and Ireland passed the resolution unanimously. At the same time, the International Football Council also passed a resolution allowing the use of goal judges in the future, that is, the fifth or even sixth referee. Therefore, theoretically speaking, from now on, each Football Association can independently decide whether to adopt all three or more of the above-mentioned new referee rules in the game. "Gazzetta dello Sport" immediately wrote an article to analyze the specific details of the "Eagle Eye" technology.


When it comes to "Eagle Eye" technology, fans who often watch tennis are probably no strangers to it. This technology, invented by Britain and now being co-developed by Britain and Japan, has been widely used in tennis, hockey and billiard games. Compared with the "goal referee" technology, it is better known. The core of "Eagle Eye" technology is to use the HD projection imaging system to show the exact set-point of the controversial ball with 3D technology. In the football game, "Eagle Eye" technology will be used to place 7 on each side of the goal behind the goal, a total of 14 high-definition cameras on the field. High-definition cameras will track the ball at a rate of 200 images per second, and use two computers to synthesize images into 3D projections.

After the "Eagle Eye" system has obtained the calculation result, it will send the results with visual information and vibration sensing defense to the watch receiver worn by the referee on the court through a special device within one second. It is worth mentioning that this technology is worth mentioning. In the tennis match that has been widely used "Eagle Eye" technology, the calculation result of "Eagle Eye" basically does not have any misjudgment, because the field of vision is open, the flight path of the ball In the absence of visual field disturbances, the placement of tennis balls tends to be easily tracked. However, as in the existing referee’s artificial judgment in football matches, the introduction of high technology such as “Eagle Eye” cannot guarantee 100% accuracy. Sex, but can only increase accuracy. Because on the football field, there is a high possibility that blocking factors such as defensive players, goalkeepers, and goal posts will block the camera's field of view. Studies have shown that once the ball's visible surface area is less than 25% of the footage, the “Eagle Eye” The credibility will no longer exist.

In contrast, the other "goal referee" technology that has obtained the "admission permit" from the International Football Council is not as widely known as the Hawkeye. The "goal referee" technology was jointly developed by Germany and Denmark. Its technical core is to place an intellisense wireless sensor device inside the ball and connect it to a computer terminal through an inductive magnetic field receiving device arranged around the goal line to judge whether the ball has crossed the goal line. Once the ball with the wireless sensor device passes through the goal line, it will cause an interruption of the induced magnetic field around the door line, which will start the computer's sensor transmission system. It will also pass the visual information and the vibration sensing method within one second. The result is sent to the phenotype receiver worn by the referee on the court. The "goal referee" technology has been tested in the Danish First Division and the Nuremberg Stadium in Germany.

As an emerging technology on the football field, the implementation cost of both "Eagle Eye" technology and "Goal scoring" technology is still too high. According to the calculation, each stadium needs to spend 200,000 Euros to install and renovate each technology introduced. Even if only the referee is added in the Premier League, it will add an extra cost of 1.5 million Euros. Therefore, both FIFA and UEFA have no plans to widely introduce high-tech referee technology. UEFA has stated that it will only increase the use of goal judges in matches such as the UEFA Champions League, the UEFA Europa League, the European Cup, and the youth and women’s football teams, while temporarily ignoring the use of “Eagle Eye” and “Goal scoring referee” technologies. . FIFA said that it will test high-tech referee technology. It is reported that FIFA has decided to try Hawkeye and Goal Referee at the two World Cups at the end of this year at the Japan World Cup. "technology.

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They have been tested in England and Belgium in a friendly match at Wembley Stadium and in a low-level British Cup final.