The first gold medal at the Beijing Winter Olympics was born in cross-country skiing. On the sidelines, a pair of electronic "hawkeye" is silently watching everything that happens on the field. The cross-country skiing referee assistance system jointly developed by capital sports institute and Hanlang Technology helps referees accurately adjudicate the whole process of the game.
Cross-country skiing is a "marathon" in winter sports, due to the long track route, complex terrain, long race time, fast speed and other characteristics, it is difficult for referees to quickly and accurately identify the technical fouls of athletes during the competition with the naked eye, and often have to watch the video after the game to make a decision to make a referee decision. The cross-country ski referee assistance system solves this problem and improves the efficiency and accuracy of the penalty work.
Sun Gang, chief expert of sports artificial intelligence research at the Capital Institute of Physical Education, introduced that the referee assistance system combines the precise positioning function of Beidou with the characteristics of 5G high-speed transmission, and "deploys and controls" in the areas where athletes are prone to foul behavior, so as to prejudge in advance, accurately capture and upload in real time. This method of "grasping the present" effectively ensures the fairness and efficiency of cross-country ski referees.
"Although cross-country skiing is an individual sport, it happens from time to time when multiple athletes pass through a point at the same time, especially on narrower tracks, which can easily cause obstacles." Blocking, he said, has both instrumental and deliberate blocking. At this time, the electronic "Eagle Eye" will conduct a three-hundred-and-sixty-degree all-round monitoring here, and the foul behavior will be reported immediately.
In addition, in the competition, it is illegal for athletes to climb hills with the action of "pedaling ice left and right". However, in most cases, the referee cannot make a decision immediately, and the video capture function of the referee assistance system is required to make the first accurate judgment of the game.
According to reports, the service system based on the precise positioning function of Beidou is also used in many aspects of the competition. "Cross-country skiing referee assistance systems are just one of them, along with the athlete scientific training service system, the staff snow track and danger zone identification system, the environmental monitoring and decision-making system." Sun Gang said that this means that in addition to capturing referees, the system also has a variety of applications such as auxiliary athletes' standardized movements, environmental monitoring, and safety and security of field staff.