On the evening of February 20, with the extinction of the main Olympic torch, the Beijing 2022 Winter Olympic Games came to a successful conclusion. At this games, the Chinese sports delegation won 15 medals and achieved the best result in the history of China's participation in the Winter Olympics.
The Winter Olympics once again amazed the world with the power of science and technology and innovative ideas. In line with the opening ceremony, the closing ceremony is still full of science and technology. With the support of fuel kinetic energy, led, artificial intelligence, 5g, cloud computing, edge computing, VR, AR, naked eye 3D and other cutting-edge technologies, the opening and closing ceremony of the Winter Olympic Games presented a magnificent, ethereal and romantic audio-visual feast.
Behind the amazing opening and closing ceremonies and wonderful and fierce competitions, there are ubiquitous cutting-edge technologies. It is reported that a total of 212 technologies have been applied in the Beijing Winter Olympics, involving more than 60 subdivided application scenarios. Among them, 4 technologies are launched for the first time in the world and 33 technologies are used for the first time in the Winter Olympics, fully demonstrating the innovative power of science and technology.
cutting edge technology to create Chinese romance
At the closing ceremony, AR Chinese knot made an amazing appearance. Countless red ribbons flew to the bird's nest from all directions, decorating the snowflake torch platform hanging in the venue into a huge red Chinese knot. "Chinese knot" is generated by digital AR technology and forms a simulated visual effect with ultra-high precision, just like a huge physical device hanging over the bird's nest.
Source: China Central Television Network
It is reported that the design of Chinese knot has absorbed many Chinese elements, including cloisonne, blue and white porcelain, silk, red ribbon, snow glaze and rime. The design of "snowflake torch platform" makes full use of visual effect programming and digital visualization to realize that the snowflake torch platform is easy to change every second.
According to the microblog of Xinhua news agency, the director expressed the solemn ceremony with the six "ones" of "one song, a group of people, a handful of willow branches, a beam of light, a piece of shade and going to the future together". In this program, a group of beams produced by "true laser" technology form towering trees, which pass through the snowflake torch station to the sky, representing the most sincere feelings of mankind, farewell, remembrance, memory and expectation.
dream five ring linkage
the world's largest Ultra HD led 3D stage
At the closing ceremony, along with the melody of "me and you", the five dreamy rings of the 2008 Beijing Summer Olympic Games rose slowly, intersected with the snowflake torch platform, and connected the 2008 Beijing Summer Olympic Games and the 2022 Beijing Winter Olympic Games. They commemorated the "double Olympic moment" in an innovative way. The time and space were wrong and unforgettable. Netizens said that they were "poked" in their dreams of 2008.
Source: China Central Television Network
According to the official wechat of China Aerospace Hi-Tech Holding Group Co.Ltd(000901) group, like the ice and snow five rings at the opening ceremony of the Winter Olympic Games, the dream five rings are also built by Aerospace Hi-Tech Holding Group Co.Ltd(000901) group, which is the "mini version" of the five rings in 2008.
The five rings have a width of 18 meters, a height of 11.75 meters and a single ring diameter of 5 meters, which is much smaller than the dream five rings with a width of 36 meters, a height of 16.5 meters and a single ring diameter of 10 meters in 2008. It consists of 21000 LED light beads, which are like sparkling stars in the night. In addition, compared with 2008, its exhibition time is greatly extended and can support more than 60 minutes of performance.
In the fancy skills of the opening and closing ceremony of the Winter Olympic Games, the LED large screen is indispensable. According to the special press conference on the 2022 Beijing Information Center Science and technology Winter Olympics, the super large 8K ground screen in the center of the bird's nest is composed of more than 40000 LED modules with an area of 10552 square meters. The 1200 square meter 8K LED screen erected above it constitutes the world's largest ultra-high definition LED three-dimensional stage at present.
According to public information, the above ground screen is jointly manufactured by listed companies Leyard Optoelectronic Co.Ltd(300296) , BOE and Unilumin Group Co.Ltd(300232) , Leyard Optoelectronic Co.Ltd(300296) provides more than 7000 square meters (the central part of the ground screen), and BOE and Unilumin Group Co.Ltd(300232) provide about 4500 square meters (the semi arc parts on both sides of the ground screen).
The screen integrates the intelligent broadcast control system to present ultra-high-resolution video materials on all modules every minute. It not only perfectly shows various image effects, but also subverts the traditional stage performance mode by combining digital technology, artificial intelligence action capture and virtual reality enhancement technology. In the "snowflake" program of the opening ceremony, the children held the model of peace dove and stepped on snowflakes. Snowflakes flowed with their feet, making the audience truly feel the surprise brought by science and technology to art.
General director Zhang Yimou introduced that this link cooperates with "tacit understanding", which is all realized by AI motion capture technology.
More specifically, according to Intel's official wechat, this "tacit understanding" is based on 3dat 3D athlete tracking technology running on the third generation Intel Xeon extensible processor and the "Ai based real-time special effects system for large-scale performance" customized for the opening ceremony scene, so that actors can present perfect artistic effects without accurate rehearsal.
for the first time in the history of the Winter Olympics, Ultra HD 8K broadcasting
This winter Olympic Games has set a new record in broadcasting, technology, content production and other aspects. It is the most watched Winter Olympic Games so far. Ultra high definition signal, cloud broadcasting and other technologies have brought a very live viewing experience.
In the past, the "bullet time" special effect, which can only be seen in the film, was applied in the Beijing Winter Olympic Games. Through dozens of cameras to capture the athletes' actions 360 degrees in an all-round way, as well as intelligent algorithm synthesis and modeling, the audience can play back from multiple angles and in an all-round way. This special effect is inseparable from the stable 5g signal.
In addition, for the first time in the history of the Winter Olympic Games, the opening and closing ceremonies are broadcast live through 8K signal. 8K broadcasting adopts the highest TV broadcasting technical standard in the world, and the bandwidth of 8K signal is 32 times that of HD signal.
Sumavision Technologies Co.Ltd(300079) said that the signals collected by the 8K relay car of this winter Olympic Games were broadcast on channel 8K of China Central Television, and the company provided 8K codec products for coding and broadcasting of 8K channel programs.
With the advantages of high speed, low delay and large bandwidth, 5g has become the "protagonist" of the "science and technology Winter Olympics".
China United Network Communications Limited(600050) said that the company actively combined edge computing, 5g cloud broadcasting and other technologies to realize the real-time transmission of high-definition video images inside and outside the stadium.
At the same time, China United Network Communications Limited(600050) has opened 33 international transmission circuits for OBS (Olympic Broadcasting Company) to transmit the highlights of the Winter Olympic Games to the global audience, which are used to carry the international transmission of the broadcasting signals of the Winter Olympic events.
At the closing ceremony, as the lights of the "snowflake platform" gradually went out from the outside to the inside, the "flying" of the main torch of the Winter Olympic Games installed in the center of the "snowflake" also went out. The "flying" combustion device of the main torch is designed and manufactured by Aerospace Hi-Tech Holding Group Co.Ltd(000901) group. It uses green, environmental friendly and good combustibility hydrogen as fuel, realizing zero carbon emission of the torch in the history of the Winter Olympic Games.
In addition to the "black technology" presented at the opening and closing ceremony of the Winter Olympic Games, the "sense of science and technology" is fully reflected in the venue construction and Event Guarantee of the Winter Olympic Games. The "outdoor snow project site windbreak network technology" used by Yunding Ski Park has installed the Beidou micro base station positioning system in "xueruyi", realizing indoor sub meter accurate positioning for the first time.
