The first is the robot restaurant. In this smart restaurant in Dongao Village, the kitchen is finished by robots. After the mechanical arm completes the cooking and wine mixing procedures, another device will deliver the dishes to the customers, which not only shows the robot technology strength of China, but also reduces the contact between people during the epidemic period, killing two birds with one stone.
The second is the unmanned train. In order to shorten the time for athletes to arrive at the competition area, the Fuxing bullet train route with a speed of 350 kilometers per hour was built. It is the first unmanned intelligent train in China, which can be reached within one hour as far as the stadium, and it also saves energy. The staff has calculated that compared with manual driving by drivers, it can save energy by 7% from Zhangjiakou to Beijing.
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 capture 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 ultra-high-speed 4K track camera system.
The fourth is the monitoring system of biological aerosol Covid-19. 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 are equipped for the event service support personnel to find and report physical abnormalities in time.
Fifth, the Winter Olympics developed a hydrogen fuel torch made of carbon fiber, which is not only light in weight, resistant to high temperature, but also can achieve "zero" emission. The world's largest transcritical direct cooling ice-making system with carbon dioxide was used in the speed skating hall, which improved the energy efficiency by more than 20%, and the temperature difference between the ice surfaces did not exceed 0.5℃, which was highly praised by the International Olympic Committee and the International Skating Federation.
The sixth is the non-inductive wearable smart device. This year's short track speed skating team used a single-lead and three-lead ECG instrument to complete high-frequency sampling through non-inductive wearable devices. ECG monitoring equipment can screen athletes' heart risks, discover risks in time, and effectively protect athletes' safety. The equipment can also arrange personalized customized 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 on the Winter Olympics of Science and Technology held by Beijing Press Center in 2022 that in this Winter Olympics, Beijing has 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, fully demonstrating the innovative power of science and technology.
Behind many black technologies in Beijing Winter Olympics, it is a concentrated display of Beijing's scientific and technological innovation achievements, and it also proves China's scientific and technological strength to the world. When we applaud the excellent performance of the athletes, we also applaud the strength and scientific and technological progress of the motherland.