The start of the World Cup in Qatar: the fastest World Cup in history
The opening ceremony of the 2022 Qatar World Cup will be held at the Gulf Stadium at 17:40 local time (22:40 Beijing time) on November 20, CTOnews.com. In this year's World Cup in Qatar, there is also a lot of technology on and off the field, many of which are used for the first time in the history of the World Cup.
According to the Science and Technology Daily, the ball used in this World Cup, Journey, is the fastest football in previous World Cups because of its light weight. According to Liang Xiaojun, general manager of Sanli Weiye (Tianjin) Sporting goods Co., Ltd., the surface of the "Journey" sphere is made of textured polyurethane spherical material named SPEEDSHELL. The sphere is composed of 20 SPEEDSHELL modules, and the triangular shape and bending design are adopted at the same time, which reduces the wind resistance coefficient of the football running in the air. In addition, through the surface embedded design details, "Journey" designers have greatly improved the stability of football flight.
At the same time, this is the first World Cup ball that uses water-based paint and water-based glue to avoid increasing the movement resistance of the ball at the stitches. In addition, the elastomer material between the spherical surface and the inner tank of the ball has also been upgraded to increase its elasticity, all in order to make the football move faster.
It is worth mentioning that Journey also uses an innovative technology system, CTR-CORE, in which a central chip is implanted inside the football, which can record football-related data at a speed of 500bpm. It also contains a motion sensor that collects high-precision football data during the World Cup and sends them to video assistant referees (VAR) to help referees make more reasonable decisions.
CTOnews.com learned that the Qatar World Cup also used semi-automatic offside recognition technology. It is understood that this technology uses 12 special cameras installed under the roof of the stadium to track the football on the field and 29 points on each player, which can be recorded 50 times per second, so as to accurately calculate their exact position in the field.
