With the early anchoring of rammstein and the unexpected fall of five-star Kazan in Brazil, this World Cup in Russia became the "European Cup", and all the top four teams came from Europe. In addition to constant surprises and regrets, this World Cup has brought too many surprises and accidents to fans, and the ubiquitous black technology has naturally played an extremely important role.
VAR videos help referees-not everything.
June 20 18, 16 is regarded as a revolutionary day in the history of the World Cup. This is the first time in the history of the World Cup to use VAR and change the penalty.
The full name of VAR is video-assisted referee, which translates into video-assisted referee system. Its essence is to use video playback technology to help the referee make a correct decision, which also means that VAR itself will not make any decision, and the final decision depends on the referee on duty.
It is understood that the VAR team consists of four people, in addition to the leader VAR video assistant referee, there are three people to assist, they all perform their duties, ensuring the fairness and justice of the game to the maximum extent. There are 13 VAR referees in this World Cup in Russia.
However, VAR is not omnipotent, and there are many precautions in use. According to the regulations of FIFA, the principle of using VAR is "minimum interference, maximum profit", that is, "interrupt the game to the minimum and get the maximum profit". VAR can only intervene when it involves four situations: the ball enters the door, the red card, the red and yellow cards punish the wrong object and the penalty. In any other case, even if the referee makes a wrong judgment, VAR cannot intervene. Previously, in the match between Switzerland and Serbia, the referee Bridge still had the right to refuse to watch the VAR replay. Although FIFA has publicly punished and forcibly repatriated, the result of the match will not change.
TV star 18- butterfingers blames me.
Starting from 1970, all previous World Cup balls were provided by Adidas. The official ball used in Russia's 20 18 World Cup was named Telstar 18 (official Chinese name: TV Star), which is known as "the most round football in history".
Muslera Butterfench
The surface of Telstar 18 is composed of six leather surfaces, which are durable, waterproof and sand-proof. The grooves spliced at right angles will make the ball move nonlinearly during the flight, and will make the players on tiptoe kick out the desired arc. For the goalkeeper, the uncertainty of running route is undoubtedly a nightmare. In the quarter-finals of this World Cup, France played Uruguay, and Gleizman scored a goal from a long distance in the second half. Muslera's butterfingers is also related to using the ball in this World Cup to some extent.
According to the research of the research group, although the increase of skin smoothness improves the ball speed, the running distance of the ball is actually shorter when the falling trajectory is obviously increased; In terms of long-distance transmission, the flight distance of "Telstar 18" is about 9%- 10% shorter than that of the previous issue of "Samba Glory".
In addition to the manufacturing process, Telstar 18 also put in NFC near-field interactive chip for the first time. NFC is the abbreviation of Near Field Communication, that is, short-distance wireless communication technology, which can interact with smart phones simply, including obtaining product information of Telstar 18 and special small game challenges. At present, many smart phones also support NFC technology, especially in mobile payment.
Goal line technique-did you score? Did you miss the target?
Goal-line technology is an auxiliary football technology developed in recent years, which is mainly based on the principle of Hawkeye system or magnetic field sensor system, and can judge whether the ball crosses the goal line, so as to judge whether the goal is effective. In this World Cup, when France played against Australia, Bogba shot at the other side's crossbar. The ball fell to the ground and was confiscated by the goalkeeper. I'm afraid even the goalkeeper doesn't know whether the ball has scored or not. At this time, using the goal line technology, we can clearly see that the ball bounces off the goal line and the goal is effective. France beat Australia 2:/kloc-0:.
Smart Watch-Customization of Infield Referee
This $5,200 smart watch was customized by the referee on the court and launched by Hublot. Based on the Wear OS operating system, it has many functions related to the World Cup, such as 15 minute reminder before the start of each game, the score in the game, the name of the goal player, the information display of substitute players, and the reminder before the end of the game.
In addition, this smart watch can also be linked with the goal line technology mentioned above. Once a goal is scored, the referee will receive a reminder from the watch within 1 second.
People wall positioning spray-civilized kicking, never crossing the line.
This is the artifact that first appeared in the World Cup in Brazil in 14. It has never appeared in the world series before, and it has also been used in the World Cup in Russia this time. Its function is to spray a white line at the position where the wall needs to retreat with the sprayer during penalty kick, so as to prevent the wall from moving forward illegally and further ensure the regularity of penalty kick. The defensive end of the wall moves forward or the offensive end moves the ball, because the existence of the wall positioning spray is eliminated.
More importantly, this line will disappear after a while, and there will be no pollution to the grass and air. In addition, this kind of spray is very small, which is convenient for the referee to hang around his waist and will not affect the referee's running and law enforcement on the court.
EPTS Electronic Performance and Tracking System-Tablet PC in hand, I have it all over the world.
The main function of this technology is to record the players' data in the game, such as instant position information, moving speed, passing, tackle and shooting data, which will be transmitted to the team's tablet computer within 30 seconds at the latest, helping coaches and medical teams to fully grasp the players' technical information and physical condition, so as to make more accurate game strategies or medical help.
20 18 The semi-final of the World Cup in Russia will officially start on 1 1, and then you can pay attention to all kinds of black technologies mentioned above. Smart TV users can download Youku TV through the Dangbei market, watch the live broadcast of the World Cup semi-finals through the Dangbei movie search, and enjoy the epic moment of the 20 18 World Cup in Russia!