Last night, the 2022 Beijing Winter Olympics came to an end, and the Chinese team also achieved the best results in history in this winter Olympics, ending with 9 gold, 4 Silver and 2 bronze. I believe that for many viewers, the shock of the opening ceremony seems to be still in front of them. At 20 o'clock last night, the bird's nest continued to shine. General director Zhang Yimou once again showed Chinese romance and double Olympic feelings at the closing ceremony of about 100 minutes through rich scientific and technological means and artistic interpretation. It forms a narrative mode in the same vein with the opening ceremony. By continuing the story of a snowflake, it presents a simple and aesthetic show of the integration of ceremony and performance, ending the Beijing Winter Olympic Games. According to Zhang Yimou, more than 2000 athletes broke the record last night and participated in the final Carnival of the Winter Olympics. In terms of aesthetic tone, the main creative team boldly used "Chinese red" to collide with "ice and snow blue", and integrated Chinese traditional cultural symbols such as lanterns and Chinese knots into the ceremony as performance elements. Sha Xiaolan, director of Fengshang culture at the closing ceremony of the Beijing Winter Olympic Games, said that in 2008, 80% of the whole bird's nest used imported equipment, 100% of the audio equipment was imported equipment, and 100% of Chinese products by 2022, all of which were made in China. All lamps and LED products are made in China, and all interactive images are created by Chinese artists. Through their works, local experts and artists broadcast their cultural confidence to the whole world through China's highlight moment, winning the admiration of the whole world. In just 16 days, it not only showed the valiant bearing and Olympic spirit of the Olympic athletes, but also the elements of science and technology. Since the opening ceremony comprehensively applied various scientific and technological achievements such as artificial intelligence, 5g, naked eye 3D and cloud computing, emerging technologies such as artificial intelligence, 8K + 5g broadcasting, digital twin, intelligent robot, assisted driving and virtual digital man have taken the lead to escort the Winter Olympic Games. (Gu Ailing's helmet, space-time freeze frame, so many black technologies are hidden in the Winter Olympics) Finally, on the occasion of extinguishing the Olympic flame, the closing ceremony "crossed" back to the 2008 Olympic Games to pay tribute to the "double Olympic city" in a dream linkage way, which has also become one of the biggest highlights of the whole closing ceremony. 1、 Snowflakes and lanterns are passed on, and AR Chinese knot is amazing The first opening program of the closing ceremony is "lighting up", which continues the "story of a snowflake" of the opening ceremony and tells the theme of "one world, one family". A large snowflake fell slowly from above the bird's nest, and a group of children played in the ice and snow with snowflake lanterns with warm yellow lights. Each lantern carries the fire of the Beijing Winter Olympics. Although the light is small, it can light up the world in the hearts of children. Every snowflake also represents the participation of every Olympic athlete. The little fire in the snowflake lantern is inherited forever, flashing, warming the world and illuminating the future. At the opening and closing ceremony of this winter Olympic Games, the construction area of the whole ground stage system is about 21000 square meters, and a 10522 square meter super large ground display screen is composed of more than 40000 screens. As the performance display system and performance stage of the opening ceremony, the ground display system carries more than 60% of the performance creativity of the opening ceremony. It is the largest LED three-dimensional stage in the world. Its actual resolution is 14880 × 7248, close to 4 8K, can perfectly present the naked eye 3D effect. At the children's feet, a huge emblem of the Beijing Winter Olympic Games gradually took shape, with light and shadow flashing. With the emblem lit up, the world instantly became colorful. After the ceremony of raising the national flag and playing the national anthem, 12 crystal clear ice carts were driven into the stadium. These ice carts adopted the shape of the Chinese zodiac. The children boarded the ice truck and made ice marks on the ice. Then, countless red ribbons flew into the bird's nest from all directions, decorating the snowflake torch platform into a huge red Chinese knot. The giant Chinese knot is generated by digital AR (augmented reality) technology. AR can show virtual objects that do not exist in the real world and form realistic visual effects with ultra-high precision. It looks like there is a huge entity Chinese knot hanging in the sky. It is reported that the design of Chinese knot has absorbed many Chinese elements, including cloisonne, blue and white porcelain, silk, red ribbon, snow glaze and rime. The sliding traces of the ice skates in the venue also changed gradually, forming a larger Chinese knot symbolizing auspiciousness and unity. This is a craft full of Chinese philosophy. Each ribbon can be tied independently, and many different ribbons can also be woven together. After weaving, they often share with each other, just like the construction of human community and the international family of harmonious cooperation, which needs the joint construction of all people. In a world connected by Chinese knots, 91 delegation flags and athletes entered the venue. Everyone waved, jumped, held hands and danced in circles with the rhythm of live music. 2、 Breaking willows to send off, creating dazzling "towering trees" with real laser technology After the award ceremony and the thank-you ceremony for volunteers, the Beijing Winter Olympic Games bid farewell to friends from all over the world with the unique oriental cultural charm of "folding willows". Welcome guests at the opening ceremony and send them off at the closing ceremony. This is China's romance to the world! With the classic song "farewell", 80 dancers walked slowly into the entrance. With the footsteps of the dancers, a picture of weeping willows gradually appeared. More people hold willow branches and gather from all directions to the center. We hope that all athletes, coaches and spectators who come to Beijing will bring this willow branch and take away the friendship of the Chinese people. In the center of the site, countless green beams pass through the snowflake torch platform and reach the sky to form a big tree composed of beams. The commemorative moment is the fixed link of the closing ceremony of each winter Olympic Games. The beam of light reaching the sky represents all the simplest and most sincere emotions of mankind - farewell, remembrance, remembrance and expectation. This light and shadow feast adopted the "true laser" display technology developed by Hangzhou Zhongke aurora. This technology takes three primary color laser as the light source. It is the only display technology that can fully realize the latest international standard of bt.2020, which also reflects that the laser display technology developed by China has leapt to the "first echelon" in the world. Zhang Yimou said: "we especially turn the light into green, which means life, hope and growth. We don't have much sadness, but more a deep Memorial." Spring is coming, the earth is green, and the world is full of vitality. The friendship of the Chinese people for parting and the voice of peace and friendship were passed along with the willow branches. The meaning of peace and the heart of friendship thrive in the spring breeze and green. Then, it recorded many moving moments of the Winter Olympics, "2022, there are us!" The short film begins to play. This short film takes you back to the moving and tender moments during the Beijing Winter Olympic Games. After the short film is the ceremony of raising the Greek national flag and playing the Greek national anthem, followed by the lowering of the Olympic flag and singing the Olympic anthem, and then the handover of the Olympic flag. The National Anthem of Italy, the host of the next Winter Olympic Games, is played and the national flag is raised. At the beginning of the Italian show, a globe was pushed into the field and rolled on the ice. The ice surface continues to crack. Under the light of the snowflake torch platform, the ice surface presents the Chinese and English "combination of two cities · cohesion and brilliance", which is the performance theme of Italy. Traveling through time and space, I came to Italy. Two young people from Milan and Cortina danpezo ran all the way, and all kinds of scenes flashed each other. Finally, they all reached the highest point, one reached the roof platform and the other climbed to the top of the snow mountain. Two young people met in Beijing. They danced together, organically integrating city and mountains, human and nature, future and sustainability. The screen images under the dancers' feet are constantly changing, one is the city map, the other is the mountains and lakes, implying the harmonious dialogue between the two different regions. The music began to change and the drums strengthened. The two young dancers drove the fragments around them to rotate, forming the character shapes of winter sports. The ground on the scene turned into a snowfield, and the snow dispersed. The emblem of the 2026 Winter Olympic Games appeared. In 2026, the 25th Winter Olympic Games will be co hosted by Milan and Cortina Dan Pezo. Harmony and harmony are the main line of the eight minute performance in Italy. The short film once again brings us to Milan. The Italian people especially use Chinese to express their welcome to the Winter Olympics and people everywhere. 3、 The five rings of stars meet with the snowflake torch station, and the fireworks of "one family in the world" bloom in the night sky Finally, it's time to leave. Cai Qi, chairman of the Beijing Winter Olympic Organizing Committee, and Bach, President of the International Olympic Committee, delivered speeches and declared the 2022 Beijing Winter Olympic Games closed. Bach commented that the Olympic village of this winter Olympic Games is unique, the venues are amazing, and the organization work is excellent. This is a truly unparalleled Winter Olympic Games. Welcome China to become a big country in ice and snow sports, and congratulate China. Outside the pavilion, beside the ancient road, the grass is green... The soundtrack of farewell rings again. In the venue, the flags of all delegations are surrounded by stars, forming a five ring. The five Olympic rings were built by the aerospace science and technology group, the implementation unit of technical support for the opening and closing ceremonies of the current Winter Olympic Games and the winter Paralympic Games. They are the "mini version" of the fantastic five rings unveiled at the opening ceremony of the 2008 Beijing Olympic Games. The five rings that rose last night are 18 meters wide, 11.75 meters high, and the diameter of a single ring is 5 meters. They are composed of 21000 LED light beads. Because they are like sparkling stars, they are called "star five rings" by the staff. "Star five rings" adopts the aerospace "double redundancy" concept, and two sets of battery systems are used as the power supply to supply power to the two LED modules a and B in the five rings respectively. One party makes an error and the other is replaced immediately to ensure the smooth performance. At the same time, in order to reflect the "simplicity" concept of this winter Olympic Games, two groups of four batteries are "inherited" from the five ice and snow rings at the opening ceremony. In addition, compared with 2008, the display time of the new five rings is also greatly extended, which can support more than 60 minutes of performance. The theme song "me and you" of the 2008 Beijing Summer Olympic Games sounded, the dreamy five rings rose and the snowflake torch platform fell slowly. When the dreamy five rings meet the snowflake torch station, at this moment, time and space are intertwined. From 2008 to 2022, Beijing has become the first "double Olympic city" in the world. The dreamy five rings hang high in the venue, and the live music has also become the theme song "snowflake" at the opening and closing ceremony of this winter Olympic Games. In the children's chorus, the fire of the Beijing Winter Olympic Games is slowly extinguished. The main torch of the Winter Olympic Games also quietly contains scientific and technological elements, which is under the overall responsibility of Aerospace Science and technology group. Its outer ribbon, inner ribbon and combustion system are printed by Hart 3D using 3D technology, and then assembled after post polishing. Aerospace Science and technology group, Harbin Institute of technology and Hart 3D jointly tackled key problems, tested a variety of 3D printing materials, optimized the internal structure of the torch, verified and improved the printing process system, and finally successfully prepared a hydrogen torch and its combustion system that fully met the requirements, so as to ensure the combustion reliability of the main torch. The main torch uses hydrogen with green environmental protection and good flammability as fuel, realizing zero carbon emission of the torch in the history of the Winter Olympic Games. It has been burning over the bird's nest from the opening ceremony to the closing ceremony. It is reported that the main torch is specially designed for the "extinguishment" link at the closing ceremony,