On February 4, the Spring Festival, the 2022 Beijing Winter Olympic Games officially opened!
Adhering to the theme of “simplicity, safety and excellence”, this less than 200 minute opening ceremony was ethereal and romantic, realized the perfect combination of conceptual innovation and scientific and technological power, and amazed the world again. The entries related to the opening ceremony of the Winter Olympic Games quickly dominated the microblog hot search list.
Behind the idea innovation of Zhang Yimou and other creative teams is the support of dozens of innovative digital technology means such as fuel kinetic energy, screen display, artificial intelligence, 5g, cloud computing, edge computing, VR / AR and naked eye 3D. Let’s take a look at these magical and shocking digital science and technology Aesthetics.
the first low fire torch in Olympic history
space grade hydrogen energy technology low carbon and safe
The unprecedented ignition ceremony creates Olympic history. This is the first time in Olympic history to present a low-carbon and Green Torch built on the core principle of environmental protection. General director Zhang Yimou said: “the way of ignition and even the way of the torch stand is our boldest design and reform, which has not appeared in the 100 year history of the Olympic Games.”
In the 2008 Beijing Olympic Games, Chinese gymnast Li Ning “flying man in the air” lit the torch. According to the China Youth Daily, the torch lit by Li Ning consumed about 5000 cubic meters of gas an hour. In order to maintain its huge flame, the bird’s nest was equipped with a gas station to deliver fuel day and night. “Of course, the burning fire is the embodiment of human Olympic spirit, but is it environmentally friendly?” Zhang Yimou said. Therefore, the main creative team of the Beijing Winter Olympics began to think about how to reduce the flame and how to be more environmentally friendly.
The final plan is that the main torch is the last torch, which is a low fire torch. At the same time, the Beijing Winter Olympic Games used cleaner hydrogen energy as the torch fuel for the first time, which was provided by China Petroleum & Chemical Corporation(600028) Yanshan Petrochemical, and the internal combustion device was jointly designed and manufactured by Beijing 11 Institute and 101 Institute of the sixth Academy of Astronautics based on the hydrogen energy technology of liquid rocket engine. In addition, the shell of the torch adopts the carbon fiber composite material developed by China Petroleum & Chemical Corporation(600028) Sinopec Shanghai Petrochemical Company Limited(600688) , which solves the technical problem of high temperature resistance during the combustion of hydrogen fuel of the torch.
Institute 508 of the Fifth Academy of Astronautics has also used the spacecraft recovery and landing test site to build a test environment simulating the main torch, which has made an important contribution to ensuring the safety, reliability and smoothness of all links of the ignition ceremony.
After finishing the ignition, let’s talk about the snowflake main torch platform. According to BOE’s official information, the overall hardware support and software system of this unprecedented “snowflake” form of the main torch platform are independently developed and designed by BOE.
BOE introduced that the diameter of the main torch platform is 14.89 meters. It is composed of 96 small snowflakes and 6 olive branch led double-sided screens. It adopts double-sided hollow design and is embedded with more than 550000 LED light beads. Each light bead is independently controlled by a single channel of the driving chip. Through more than 500 design drawings and nearly 10 rounds of sample preparation, BOE team has developed the single pixel controllable special-shaped display product with the narrowest luminous surface in the industry, which fully presents the line feeling and delicate picture display effect of snowflakes, and successfully turns the artistic creativity of the director group into reality.
ice cube “carves” five ice rings ”
ultra high definition LED display technology
Another unforgettable picture is that the “ice cube” was slowly “carved” into glittering five rings by laser at the opening ceremony.
According to the official wechat of Leyard Optoelectronic Co.Ltd(300296) group, Leyard Optoelectronic Co.Ltd(300296) undertook the production and installation of ground screen, ice waterfall, ice cube, north-south stand screen and playback system at the opening ceremony of Beijing Winter Olympic Games. “The vision of ‘carving’ is produced by the combination of laser and ice cube 3D visual effect.” Li Jun, chairman of Leyard Optoelectronic Co.Ltd(300296) group.
The ice cube is 22 meters long, 7 meters wide and 10 meters high. It is composed of LED screens. Wuhuan itself is also an LED screen. When it appeared, the laser on the 4th floor of the grandstand shone on the ice cube to “carve” the ice cube. As the top cover of the upper part of the ice cube turns down, with the “carving” of the laser, the five rings at the bottom rise slowly, and the LED screens on the four sides of the ice cube fall slowly while playing the three-dimensional visual effect of ice slag splashing. With the perfect cooperation of the three aspects, the visual effect of the five rings being “carved” is formed.
In addition to the ice cube, there are more than 10000 square meters of ground screens and 60 meter high ice waterfalls, which are also composed of LED screens.
BOE introduced that the stage floor of the opening ceremony is the largest 8K UHD ground display system at present! BOE adopts multiple picture fusion technologies with 8K + resolution. The super large-scale optical correction algorithm can perform pixel level optical correction for each display picture, showing 100000:1 ultra-high contrast, 3840hz ultra-high refresh rate, and 29900×15096 ultra-high resolution ultra-high definition gorgeous pictures.
Ultra high definition display and communication technology make the opening ceremony a real visual feast. Black bow, the visual effect team of the opening ceremony of the Beijing Winter Olympic Games, introduced in the official wechat that the visual effect image quality at the opening ceremony reached the world’s top 16K level. On average, 100 rendering clusters were required to work for about 3 days at a time, and the amount of data in a piece was about 2T. In order to ensure the content output, its team built a “rendering farm” to meet the huge amount of rendering production.
The signal transmission behind the display is also guaranteed by space forces. According to the China Aerospace Hi-Tech Holding Group Co.Ltd(000901) group, the 12 Avenue companies of the first Academy of Astronautics are responsible for the construction of the broadcast control system behind the display. Relying on the industrial Internet platform owned by Dadao company – the long march cloud platform, tens of thousands of screens are connected, and their working conditions of temperature, humidity and voltage are monitored at all times. In case of any abnormality, it will alarm immediately.
the actor’s action perfectly matches the light effect
AI real-time large-scale motion capture technology is indispensable
When the children with peace pigeons walked into the stadium, the light spots under their feet lit up, the athletes in roller skates slid on the ground screen, and the snowflakes were erased.
The real-time “interaction” between the large LED screen laid on the ground and the actors has become a highlight of the opening ceremony of the Winter Olympics. General director Zhang Yimou once revealed that the opening ceremony of the Winter Olympic Games used an interactive technology of real-time capture of the big scene.
According to Intel’s official wechat, this “tacit cooperation” comes from a more efficient and technological means – Intel 3dat 3D athlete tracking technology, which can make the screen on the ground instantly give real-time feedback on the actor’s displacement and present artistic effects. The “Ai based real-time special effects system for large-scale performance” customized for the scene of the Winter Olympic opening ceremony based on Intel’s 3dat technology and the professional team of Beijing Film Academy is the key technology to realize the creativity of the whole program.
It is understood that Intel has deployed five edge computing systems, high-capacity optical fibers, camera recording systems and rendering systems equipped with the third-generation Intel Xeon scalable processor in the National Stadium. At the same time, the AI real-time special effect system used this time is not only used for on-site performance, but also used to assist actors in program rehearsal, and generate real-time animation according to the rehearsal results, so as to improve the naturalness and fidelity of human character animation in the video effect production of the opening ceremony.
In addition, according to science and technology daily, before the opening ceremony of the Beijing Winter Olympic Games surprised the world, the opening ceremony had been rehearsed countless times on the platform developed by the Beijing Key Laboratory of digital performance and simulation technology of Beijing University of technology. The advanced virtual simulation technology behind this is also the key technology in the hot concept of “meta universe”.
