What "black technologies" did Beijing Winter Olympics use?

With its all-black technology, the Beijing Winter Olympics has made more and more people marvel at the speed and strength of China's scientific and technological progress, and the scientific and technological elements have become a highlight. Then let's take a look at what black technologies have been used in this Winter Olympics.

The first is the robot restaurant. In this smart restaurant in Dong 'ao Village, the kitchen is completed by robots. After the mechanical arm completes the cooking and wine mixing procedures, another device delivers the dishes to the customers, which not only shows the robot technical strength of China, but also reduces the contact between people during the epidemic, killing two birds with one stone.

The second is the driverless train. In order to shorten the time for athletes to reach the competition area, the Fuxing bullet train line with a speed of 350 kilometers per hour was built. It is the first unmanned intelligent train in China, which can reach the stadium within one hour at the farthest, and it is also very energy-saving. The staff calculated that from Zhangjiakou to Beijing, compared with manual driving by drivers, it can save energy by 7%.

The third is the ultra-high-speed 4K track camera system, which makes "dirty hands" have nowhere to hide. In order to let spectators and referees watch the game more intuitively, the Beijing Winter Olympics adopted 360-degree shooting technology, which can shoot 4K ultra-high-definition pictures at a speed of 70 kilometers per hour. This system is also named "Cheetah". This system can easily keep up with the athletes' high-speed movement, and shoot the game pictures in 360 degrees without dead ends. Especially in skiing events, the live images made me really feel the black technology of the camera system of the ultra-high-speed 4K track.

Fourth, the biological aerosol COVID-19 monitoring system. This system can detect the air environment at all points in the venue in time, and the monitoring sensitivity is three times higher than that of traditional means. More than 30,000 multi-sign sensing devices have been equipped for the event service support personnel to find and report physical abnormalities in time.

Fifthly, the hydrogen fuel torch made of carbon fiber has been developed in the Winter Olympics, which is not only light in weight and resistant to high temperature, but also can achieve "zero" emission. The application of the world's largest carbon dioxide transcritical direct cooling ice-making system in the speed skating hall has improved the energy efficiency by more than 20%, and the temperature difference between the ice surfaces does not exceed 0.5℃, which has been highly praised by the International Olympic Committee and the International Skating Federation.

Sixth, non-inductive wearable smart devices. This year's short track speed skating team used single-lead and three-lead electrocardiographs to complete high-frequency sampling through non-inductive wearable devices. ECG monitoring equipment can screen athletes' heart risks, discover risks in time, and effectively ensure the safety of athletes. The equipment can also arrange personalized training plans to improve training efficiency and performance.

On February 16, Xu Qiang, director of the Beijing Municipal Science and Technology Commission, introduced at the special press conference of the 2022 Winter Olympics of Science and Technology held by Beijing Press Center that in this Winter Olympics, Beijing tested more than 200 technologies, involving more than 60 subdivided application scenarios, of which 4 technologies were launched for the first time in the world and 33 technologies were used for the first time in the Winter Olympics, which fully demonstrated the innovative power of science and technology.

Behind many black technologies of Beijing Winter Olympics is a concentrated display of Beijing's scientific and technological innovation achievements, which also proves China's scientific and technological strength to the world. While applauding the excellent performance of athletes, we also applaud the strength and scientific and technological progress of the motherland.