What are the high technologies of Beijing Winter Olympics?

The hi-tech of Beijing Winter Olympics is:

1. Direct cooling ice making technology and snow storage technology are adopted.

Direct cooling ice-making technology was introduced into the Capital Gymnasium, which changed the structure of the ice rink, realized rapid temperature rise and fall, and the ice surface conversion could be completed within 2 hours. At the same time, it can make "the fastest ice". With this technology, the temperature difference of ice surface can be controlled within 0.5℃, and the carbon emission is close to zero.

At the same time, the integrated design of cold and heat sources is adopted to recover refrigeration waste heat, and the energy efficiency is improved by 30%-40%. This technology was first applied to the Winter Olympics on a large scale.

2. Large vertical screen

At the opening ceremony, the most conspicuous thing in the center of the Bird's Nest is the large vertical screen, which is an LED screen nearly 60 meters high and 20 meters wide, named "Ice Waterfall". In order to ensure that the wind speed is too high in autumn and winter, the technical team overcame many difficulties and recorded more than 100-200 wind conditions, thus overcoming this technical problem.

3. Ground curtain

The display screen appearing on the ground at the opening ceremony consists of 8K ultra-high definition ground display system with an area of 10393m2 and more than 40,000 LED modules. In order to achieve perfect fusion on such a large screen and produce gorgeous colors and pictures, a number of 8K+ resolution image fusion technologies are adopted.

4. ice cube

The biggest highlight of the opening ceremony is undoubtedly the ice that broke through the ice. Its total weight is about 400 tons, and its lifting weight reaches 180 tons. Placed in a pit of 84m×42m× 10m, the lifting load is 8 times higher than that of a large lifting platform of a general theater.

5, epidemic prevention artifact temperature stickers

It looks like a band-aid, but it is actually a pocket wireless electronic thermometer with a built-in chip. The error of detecting body temperature is 0. 1-0.2℃. Through the binding of mobile APP, the real-time body temperature of Olympic-related personnel is reported to the data background remotely. The system collects temperature data every 3 seconds, and once it exceeds 37.3℃, it will automatically alarm epidemic prevention personnel.