Chinese traditional 24 solar terms are linked to count down... In the expectation of thousands of people, the 2022 Beijing Winter Olympic Games will come in the spring, and the world will go to an ice and snow adventure. The whole opening ceremony integrated nature, humanities and sports, showing the beauty of harmony with unique Chinese characteristics. Every minute is full of the general pattern of Chinese culture.
"It's not easy to popularize 8K TV in the community. The facial expressions of the characters are particularly clear." On the evening of February 4, Mr. Zhou, a resident of Beijing sanyangli community, and his neighbors watched the opening ceremony of the Beijing Winter Olympic Games through a 75 inch 8K UHD TV in the community activity center.
In order to better present this sports event, during the opening ceremony, Beijing comprehensively demonstrated the technologies and products of 8K industry in signal acquisition, live broadcasting, signal transmission and terminal display through multi-level large screen, medium screen and small screen systems.
It can be said that the full application of 8K makes it possible to "see if you want"
8K theater live broadcast, the first time in Olympic history!
It doesn't matter if you can't visit the scene in person. Last night, the National Grand Theater was crowded with ordinary community residents, representatives of athletes and coaches and representatives of employees from all walks of life. They watched the 8K ultra-high definition live broadcast of the opening ceremony of the Beijing Winter Olympics through the 800 inch super large film screen.
For the first time, the opening ceremony used China's highly reliable and low delay euht wireless broadband technology with independent intellectual property rights to display 8K UHD live wireless transmission. At the same time, the 8K experimental channel of Beijing Radio and television Winter Olympics Documentary, the first 8K UHD TV channel for end users in China, is used as the signal source, and the avs3 coding technology independently developed by China is used to open up the transmission path from Beijing Radio and television to the National Grand Theater.
As the first "double Olympic city" in history, Beijing has established a large-scale urban 8K broadcasting system in the early stage. On the opening night, 20 large 8K ultra-high definition screens and 200 large-size 8K TVs were lit up for operation, not just the opening ceremony. The Beijing Winter Olympic Games will realize the world's first large-scale application of 8K technology for live broadcast of the opening and closing ceremonies and coverage of key events.
It can be said that the "clearest" Winter Olympic Games in history can not be missed. During the event, you can go shopping in Beijing blue harbor or Han nationality square while cheering for the exciting speed skating competition; You can also sit in Migu cafe in Xidan and have a cup of fragrant latte with a beautiful flower skating competition. In addition, Beijing citizens can enjoy the broadcast of the wonderful events brought by 8K technology in public spaces such as the National Grand Theater and Fengtai Lize business district, well-known universities such as Tsinghua University, as well as communities such as urban sub centers.
The National Grand Theatre and Beijing Radio and television station also jointly launched the activity of "science and technology Winter Olympic music Beijing - 8K stage art exhibition and broadcasting". From February 1 to the closing of the winter Paralympic Games, five 8K concerts produced by both sides, including "ice and snow haoyao · cheering the Winter Olympics" and "Beijing chorus", were broadcast through the 8K UHD experimental channel of Beijing station
watch the game from zero! 8K + 5g broadcasting vehicle is indispensable
Of course, if you want to feel the fast speed of short track speed skating, or want to "plant grass" the lip color number of female skaters, you have to rely on this broadcast car to "explore the details".
A Chinese made 8K + 5g broadcasting vehicle and technical support service team have been deployed in the capital gymnasium to cooperate with China Central Radio and television to produce 8K public signals for the short track speed skating and figure skating events of the Beijing Winter Olympics for 17 consecutive days. The duration of broadcasting is about 80 hours.
What's the difference between this broadcast? Yang Jian, deputy general manager of Zoomlion Chaoqing / coordination center, told reporters that the definition of 8K is 4 times that of 4K and 16 times that of 1080p, which can bring a more real and shocking experience effect to the audience.
It is understood that the broadcast car is 17 meters long and 4.5 meters wide, and can accommodate more than 20 staff to work on the car at the same time. According to Yang Jian, the professional broadcasting vehicle independently designed and integrated by them is also the only comprehensive experimental platform for the progressive development of ultra-high definition domestic equipment in China. It is composed of video vehicle and audio vehicle, and integrates the world's most advanced broadcasting vehicle technologies such as 8K HDR, 4K HDR and ultra-high speed slow motion shooting.
Simply understood, the interior of 8K + 5g broadcasting vehicle is like a miniature mobile TV station, with a large 8K screen and several 4K screens built in. With the help of 5g technology, ultra-high definition video production and dissemination can be realized. In other words, the production of the program depends entirely on this broadcasting car, which is compressed by the staff into a high-quality video stream that can be transmitted by 5g and transmitted to the large screen through 5g.
"Especially when watching sports games, 8K screen has great advantages. At present, HDTV adopts a 25 frame system, with only 25 complete frames per second. 4K and 8K have at least 50 Complete frames per second, so the sports picture is more smooth and continuous." Yang Jian said.
It is worth mentioning that Zoomlion Chaoqing / collaboration center took the lead in breaking through the bottleneck of 8K front-end integration technology, promoting the collaborative research of short board technology and products, and forming the world's first set of more than 20 technologies and products, the country's first set and domestic substitutes. "In the past, the localization rate of Chinese broadcasting vehicles was low, while the localization rate of relevant technical products has reached 15% for the ultra-high definition broadcasting vehicles applied to the Winter Olympics this time." Yang Jian said that this kind of event broadcasting with high load and high pressure is a very good stress test and practical test for all domestic equipment participating in 8K UHD broadcasting.
The 8K live broadcast of the opening ceremony of the Beijing Winter Olympic Games is only the beginning. In the near future, it will further extend to all areas of our daily life and witness that the "once future" has actually entered our lives.
