The long-awaited 2022 Qatar World Cup is coming. The World Cup, scheduled to be held from November 20 to December 18, will be full of many "firsts". First of all, this is the first time that Arab countries have hosted the World Cup; Secondly, this is the first time that the World Cup is held in the "off-season"; Finally, this is the first time to set the distance of all venues within an hour's drive - which is absolutely good news for all fans who go to Qatar to watch the game. All of these make the Qatar World Cup a "not to be missed" event, but there is another factor that will make it more brilliant, that is, innovative technology. Football fans will not only harvest exciting game scenes, but also embrace the unique experience provided by "technology and ferocity". The new revolutionary ball and semi-automatic offside technology Qatar World Cup will introduce the "dream journey" (Al Rihla, Arabic means "journey"), which is a new revolutionary football. "Dream Chasing Journey" is equipped with Adidas suspension system, which includes an inertial measurement unit (IMU) sensor to detect serious offside events. The sensor is located in the center of the ball, and can send the ball data to the video operation room 500 times per second, so that the kick point can be detected very accurately. Technical innovation will also take place on the court. FIFA has announced that it will use semi-automatic offside technology during the Qatar World Cup. This will become a support tool for referees to help them make accurate, fast and repeatable offside decisions during the game. The new technology will install 12 tracking cameras around the stadium. Each time the ball is passed to a player in an offside position, the technology will automatically send an offside alarm to the video assistant referee (VAR). It does not require a long VAR playback to determine whether the player is offside. Although the World Cup will be held from November to December with advanced stadium cooling technology, the temperature in the Gulf region may still reach about 25 ℃ - 30 ℃. In order to reduce the temperature to 18 ℃ - 24 ℃, the stadium is equipped with cooling technology and retractable roof to provide a more comfortable environment for athletes and fans to play and watch. Seven of the eight stadiums in this World Cup have adopted advanced cooling technology to keep the stadium cool and pleasant. The only one that does not use this technology is the 974 Stadium with natural ventilation, which is due to its proximity to the coast and does not require cooling. There will be an energy center near the stadium, from which cold water will be piped to the stadium. Vents are installed around the football field and under the auditorium. During the game, cold air will be continuously pushed from the vents to the field and audience area. This system mainly uses the heat energy converted by solar energy to cool, and the cold air circulates to the entire stadium through the pipeline. This is the first time to use such technology. In addition, the unique retractable roof can significantly improve the cooling process, which means that the water and energy required by the air conditioning system will not be overburdened. In case of bad weather, the retractable roof can also be closed. Accessibility of auxiliary technology for all people to experience the event is an important factor in any event, and the World Cup is no exception. Even if