The Beijing Winter Olympics is not only a sports event that has attracted worldwide attention, but also a window to observe China's scientific and technological innovation. Whether it is venue facilities, spectators watching the game, or epidemic prevention means, intelligent catering, many new technologies made a stunning appearance at the Beijing Winter Olympics, and the Winter Olympics of science and technology demonstrated "Chinese wisdom" and "Chinese power", let us feel the charm of science and technology empowering the Winter Olympics together!
>> create the "fastest ice" with near-zero carbon emissions
The picture shows the athletes training in the "ice ribbon". Photo by Wu Wei, Xinhua News Agency
From the beginning of the speed skating event of the Beijing Winter Olympics to the 13th, the "Ice Ribbon" held a total of 8 events, except for the speed skating women's 500 meters event did not create a new record, and the winning results of each other event broke the Olympic record. The ice ribbon has broken the Olympic record, what secret is hidden in the "fastest ice"?
The builders of the "Ice Ribbon" innovatively adopted the carbon dioxide transcritical direct cold ice system, making the "Ice Ribbon" the first speed skating hall in the history of the Olympic Games to use this technology. Carbon dioxide transcritical direct cold ice making technology is one of the most advanced, environmentally friendly and efficient ice making technologies in winter sports venues. Its application can not only provide a highly balanced ice surface for the Winter Olympic Games, but also make the carbon emissions of the National Speed Skating Hall close to zero. The temperature difference between the overall ice surface of the ice ribbon does not exceed 0.5 degrees Celsius, which means that the hardness of the entire ice surface track is the same, which is very conducive to athletes to skate well.
The "Ice Ribbon" is full of innovative scientific and technological elements, which will bring new surprises to the Winter Olympics. Thumbs up!
>> "Water Cube" magically incarnated as "Ice Cube"
The National Aquatics Center in the Snow "Ice Cube" (taken on February 13). Photo by Xinhua News Agency reporter Huang Xiaobang
With the advancement of the event, the Winter Olympic venues also ushered in a "highlight moment". The curling arena is in full swing, and at the feet of the Olympic athletes, another miracle is quietly born - the "Water Cube" of the National Aquatics Center magically incarnates into the "Ice Cube", and the application of water ice conversion technology is magical.
The application of prefabricated rapid disassembly and leveling dynamic monitoring technology, within 20 days to complete the "water to ice" site conversion, to achieve ice surface millimeter-level high-precision measurement. It is the world's first quick-accessible water ice conversion venue and an intelligent Olympic venue.
>> windproof network "net" contains scientific and technological elements
Athletes participating in the Beijing Winter Olympics snowboarding U-shaped track skills competition at the Genting Ski Park on February 6 are fully prepared. The windproof wall in the venue can effectively reduce the interference of high winds on athletes and ensure the normal operation of the event. Hebei Daily reporter Zhang Hao photographed
At The Zhangjiakou Genting Ski Park, a windproof system has been installed to keep athletes as little as possible from wind interference when competing. This set of windproof device has a good light transmission performance, but also has a strong tensile performance, 1 meter width of the windproof cloth can withstand 1.2 tons of pressure, which makes its wind speed performance is particularly good, 10 meters per second of high wind, after its blocking, the wind speed is reduced to 3.5 meters per second.
>> the world's largest variable-angle diagonal elevator
As China's first Winter Olympic ski jumping site that meets international standards, the difference between the top of "Snow Ruyi" and the ground is more than 160 meters. On the side of "Snow Ruyi", the ramp elevator with the angle of operation changes with the mountain trend has been put into use. This ramp elevator is specially designed and produced for the special shape and event use of "Snow Ruyi", and is currently the fastest ramp ramp elevator in the world, with a total length of 259 meters and a speed of up to 2.5 meters per second, which can help skiers pass up and down between the lower part of "Snow Ruyi" and the top athlete departure area.
>> ice and snow equipment is very good
Winter Olympics competition uniforms should achieve four types of product innovation in sports clothing, protective materials and equipment, low temperature resistant support materials and skills of sports clothing.
In view of the comprehensive drag reduction problem of the competition uniform of the racing project, the winter competition clothing project team collected and tested the basic performance of more than 150 kinds of fabrics around the world, and finally independently developed the anti-drag fabric, designed the drag reduction structure, and tailored the "suit" for each athlete.
In order to ensure speed while using clothing performance to avoid athlete injuries during competitions, individual solutions have been designed for different projects. For example, on the short track speed skating race suit, the use of a new type of high-elastic anti-cutting fabric, the one-way anti-cutting upgrade to two-way, on the basis of maintaining elasticity, the anti-cutting performance is improved by 20% to 30%, providing athletes with all-round protection.
>> new technologies to improve the viewing experience
From preparation to holding, many firsts of scientific and technological achievements have not only amazed foreign athletes and media personalities, but also benefited the off-site audiences with the dividends of innovation.
"Movie-quality effects like 'Bullet Time' in The Matrix are coming!" On overseas social media sites, the blogger's "Crooked Fruit look at China" happily shared by many netizens: arbitrary perspective switching, free zoom, pause at any time, freeze-motion rotation, slow motion surrounding... Holding a 5G mobile phone, clicking on the application, the moment your finger touches the screen, you can realize the free viewing of any perspective.
With 4K multi-track broadcast-grade image synchronous acquisition coding and picture synthesis technology as the core, the free-view technology can shoot around different center points, presenting a three-dimensional effect of the object's 360-degree surround perspective, and the off-site audience can break through the traditional fixed viewing angle restrictions, and can also "immersively" cheer for the Winter Olympic athletes at home.
Not only that, the whole process of intelligent digital human sign language generation service, convenient for the hearing impaired to watch the event report, 8K screen combined with 5.1 channel surround sound, so that the "cloud" spectators get a more immersive sensory experience.
>> the high technology behind the torch
The main torch at the opening ceremony of the Beijing 2022 Winter Olympics (photo taken on February 4). Photo by Xinhua News Agency reporter Yang Lei
On February 4, an opening ceremony that amazed the world ignited people's passions and dreams. When the two torchbearers ran with their torches to the center of the "Bird's Nest", the whole place fell silent. The torch is gently inserted into the pedestal and presented to the world in an "unexpected" way. The "snowflakes" held up the blooming flames and danced in the air, and the atmosphere of the opening ceremony reached a climax in an instant.
This is the first time in the history of the Olympic Games that the micro-fire torch was designed with low-carbon green environmental protection as the core principle. The main torch's biggest innovations are the micro-fire design, video display and the complete structure over the nest made up of a complex attitude control system, which is unique in Olympic history.
The micro-fire design with green energy hydrogen as fuel can achieve hydrogen consumption of less than 2 cubic meters per hour.
>> "intelligent epidemic prevention personnel" to complete 8 inspection links in 1 second
The disinfection robot is working. Image source: Xinhua News Agency
In the context of the new crown epidemic, epidemic prevention can be said to be the most important link. The mainland of the Winter Olympics has adopted a large number of "black technology" epidemic prevention equipment.
"Intelligent epidemic prevention personnel" can complete 8 inspection links such as identity identification and intelligent temperature measurement in one second, quickly judge the health status of relevant personnel, maximize the efficiency of information verification, and achieve safe, convenient and fast passage. The robot comes with its own perception device, which can quickly identify the identity of the person, quickly judge its health status, and the display screen will present information such as ID photos, nucleic acid testing, vaccination, etc., and give status prompts such as "no abnormality". This series of actions can be completed in just one second, and can also ensure that the accuracy of human temperature detection is within 0.2 °C.
Secondly, the Bucos atomization disinfection robot, which is applied to the disinfection work of the Winter Olympic venues, adopts the method of chemical disinfection, which can fill 16 liters of disinfectant water at a time, and spray the liquefied aerosol into the air through the four-way sprinkler on the head, and the disinfection area can reach 36 square meters in one minute. The disinfection area of a single robot can cover more than 1000 square meters, and the battery life is 4-5 hours. It is reported that the disinfection robot only needs to add disinfectant in advance every day, and at the set time, it can start the killing task.
>> smart restaurant, food "falling from the sky"
This is the interior view of the media restaurant of the main media center of the Beijing Winter Olympics taken on January 10. Photo by Xinhua News Agency reporter He Changshan
When traditional food meets high technology, what kind of spark will collide? The biggest feature of the smart restaurant is that there is no chef to stir-fry, no waiter to deliver food, the whole process is automated cooking and transmission. The food is stir-fried in a wok, wait for ten or twenty minutes, and the fragrant delicacy will come out of the pan. The dishes and spices are automatically distributed in proportion, poured into the wok in turn, stir-fried up and down, and after frying, they are put on a dinner plate. Through the automatic lifting equipment, the dinner plate is sent to the cloud rail above, and then accurately positioned by the intelligent car of the cloud rail system, and the dinner plate will "fall from the sky" and be sent to the corresponding table.
What "black technology" is hidden in >> minibuses?
On the afternoon of February 12, a black minibus at the east gate of the Zhangjiakou Media Reception Station became the focus of attention of many media reporters. The black minibus, named Etech Smart Hydrogen Autonomous Driving Cabin, is responsible for providing a life transportation ferry for the staff and volunteers of the Winter Olympic Organizing Committee. This square cabin integrates many technologies such as automatic control, architecture, artificial intelligence, visual computing, etc., and is a mobile-as-a-service unmanned vehicle platform + intelligent mobile space that combines electrification, hydrogenization, vehicle networking and autonomous driving technology.
There is no driver on the car, no steering wheel, no brake accelerator pedal, completely dependent on automatic control by the machine (only set up safety officers, convenient for manual intervention in emergencies), but can be independently positioned during the driving process, automatically planning the driving route to follow the trail; can automatically determine the state of traffic lights in front, at the best speed of green waves through the intersection, if the fire truck, ambulance and other special vehicles, as well as pedestrians through the zebra crossing, but also automatically stop to give way or slow down to avoid It can also prompt the safety distance with the car in front of you in real time, and automatically issue a safety warning when the car is too close; you turn with the bend, and automatically issue a turn warning and slow down when turning. During the experience, the reporter felt that the vehicle drove smoothly throughout the process, and the station could be automatically stopped, and the direct dialogue between man and machine could be realized through the voice summoning function.
>> "100-meter- " and "minute-level" meteorological systems
The Beijing Winter Olympics is the first time in the history of the Winter Olympics that it has been held in the continental monsoon climate zone, and the requirements for meteorological service guarantee are very strict. Most of the snow competition venues are in mountainous areas with complex terrain, which are prone to natural phenomena such as rain, snow and fog, which reduce the visibility of the field. To this end, researchers for the first time used millimeter wave cloud radar in the Winter Olympic Games. Millimeter wave cloud measurement radar is currently the most effective equipment to achieve cloud fine detection. Since 2014, it has been on the yanqing and Zhangjiakou competition areas, it analyzes the cloud's moisture content, spatial location, shape, size and other information, real-time monitoring of low cloud, fog and other low visibility weather, providing early warning.
From ice and snow venues to sports equipment, from transportation to epidemic prevention and control, the Beijing Winter Olympics have integrated too much high technology to praise the builders of the Winter Olympics!
(Synthesized from Hebei News Network, Xinhua News Agency, Science and Technology Daily, Beijing Daily client, etc., editor Zheng Xiaojuan)
Source: Hebei News Network Synthesis