月度归档 2024年9月20日

　　At 01:56 on March 30, 2018, Xichang Satellite Launch Center, the Long March 3B carrier rocket successfully launched the 30th and 31st Beidou navigation satellites in the "one arrow and two stars" way, which is also the seventh and eighth networking satellites of our country’s Beidou-3.

　　Recently, Yang Changfeng, the chief designer of the Beidou satellite navigation system, revealed in an interview with the upstream news · Chongqing Morning Post reporter that 18 Beidou satellites will be launched this year, and services will be provided to countries along the "Belt and Road Initiative" by the end of the year; by 2020, a world-class Beidou system will be built; in 2035, a Beidou system will be built with the Beidou system as the core, and a national Beidou integrated positioning and navigation timing (PNT) system that seamlessly covers multiple means of integration, high precision, safety and reliability, and all things are interconnected and intelligent. By then, space-time information services will penetrate into every corner of our lives, and Beidou will be everywhere and always present.

　　technical blockade

　　An atomic clock with a 3 million-year error of one second

　　In the Gulf War, the precision strike performance of GPS-equipped weapons shocked the world, and our country made a major decision in 1994 to develop its own satellite navigation system, named "Beidou".

　　However, the development process was not smooth.

　　In 2005, there was a problem with the atomic clock of the Beidou-2 under construction. The high-precision time reference technology is the core technology of the satellite navigation system, which directly determines the navigation and positioning accuracy of the system and plays a decisive role in the success or failure of the entire project.

　　"In the early days of development, the technology was limited at that time, so we wanted to import it from abroad, but we didn’t expect foreign countries to block our technology, which became the biggest bottleneck in the construction of the Beidou satellite navigation system at that time." Yang Changfeng said that because of this, Beidou people have strengthened their belief in self-reliance.

　　"After this incident, we came to a consensus that the core and key technologies must be broken through by ourselves and cannot be controlled by others. At that time, our Beidou people said something like this, there were atomic bombs in the 1960s and 1970s, and we Beidou people must have our own atomic clock."

　　After that, the Beidou people set a goal for themselves to develop an atomic clock with an error of only 10 to the power of -12. In layman’s terms, this atomic clock would only have an error of one second every 100,000 years.

　　To this end, Beidou established three teams to carry out research and development at the same time, and to advance simultaneously in the fields of basic theory, materials, engineering, etc. In this way, in just two years, Beidou overcame the biggest technical obstacle, the atomic clock.

　　Not only that, the atomic clock now used on the Beidou-3 has been improved to an accuracy of 1 second error every 3 million years, which fully meets the positioning accuracy requirements of our country and the service life of the satellite.

　　Speaking of this, Yang Changfeng was extremely proud, "This kind of ability is forced out. To this extent, we scientific and technological personnel rely on this kind of ability. Whether it is called backbone or hard work, we finally took it down."

　　Yang Changfeng said that the current Beidou satellite positioning system’s high-precision location-based service system has reached the dynamic sub-meter level, centimeter level, and post-processing millimeter level.

　　Key three days

　　Holding the transponder like holding your own child

　　After breaking through the technical difficulties of the atomic clock, the Beidou people faced another challenge.

　　When our country began to develop the Beidou satellite navigation system, the United States and Russia had occupied the most suitable frequency band for satellite navigation, and Beidou had no frequency available. The premise of navigation satellites is to have legal orbital positions and frequency resources, which are precious resources that countries must compete for.

　　"With the help of China and the European Union, the ITU has maximally squeezed out a small segment of the air navigation frequency band for the common use of satellite navigation in various countries. This small segment only accounts for a quarter of the golden frequency, but it is the basic requirement for building a global satellite navigation, and all countries can apply."

　　On April 18, 2000, China’s Beidou and the European Union’s Galileo system were successfully applied for simultaneously.

　　According to the rules of the ITU, the orbital position and frequency resources are not permanent, and the valid period is only 7 years. The country that successfully applies must successfully launch the navigation satellite within the valid period to be considered to have successfully occupied this space "land".

　　This track and frequency resource was snatched by Yang Changfeng leading the Beidou in the last battle.

　　"That is to say, on April 18, 2007, we did not receive the signal and automatically withdrew from the position of’space land ‘." According to the original deployment, our country would not launch the first Beidou navigation satellite until the end of 2007. "If we follow the original plan, the orbital position and frequency resources we finally applied for will expire."

　　In order to maintain this orbital position and frequency, the Beidou people worked around the clock, and the satellite entered the final launch phase in early April 2007.

　　"At that time, the satellites were all on the launch tower, and suddenly there was an abnormality in the transponder."

　　Yang Changfeng explained that the transponder is used to connect the sky and the ground. "With this transponder, we will know whether the signal in the sky is connected to the signal in the ground."

　　"At that time, the signal of the transponder was unstable, sometimes good and sometimes bad. In order to ensure access to frequency resources, this signal was necessary." Yang Changfeng said that this signal was very critical. "There were only three days left for us at that time. In order to be foolproof, we decided to repair the transponder."

　　So they climbed the tower, switched on the rocket, peeled off the satellite, took out the faulty transponder, and immediately rushed from Xichang to Chengdu, starting from scratch, to re-test the transponder. During the transportation of the transponder from Xichang to Chengdu, the Beidou people held the transponder tightly like their own children.

　　During his three days in Chengdu, Yang Changfeng confessed, "To be honest, my mood is tense, heavy, and the pressure is also very high. I basically didn’t sleep for 72 hours."

　　After the transponder was repaired, it was sent back to Xichang. At 4:11 on April 14, the first satellite of Beidou-2 was launched from Xichang.

　　At 20:00 on April 17, the first set of satellite signals was sent, "At that time, we were in the playground and set up a table with more than a dozen receivers. When we received the signal at the same time, everyone in the playground cheered and jumped. I was so happy that I cried, really unconsciously."

　　Yang Changfeng said that he didn’t think much about it at that time, "I just think we finally got this signal, and the road to our Beidou development has been opened."

　　At this point, there are less than 4 hours left until the limited time.

　　Beidou is not far

　　Opened a life passage for the rescue of Wenchuan disaster area

　　Beidou seems far away from us, but it is actually very close.

　　During the 2008 Wenchuan earthquake, when communications, electricity, and transportation were all destroyed, and the disaster area lost all contact with the outside world, Beidou used its unique short message function to report the situation in the disaster area in real time to the command center in text, opening a life channel for rescue.

　　There are also shared bicycles that everyone is familiar with. Beidou’s precise positioning can help shared bicycles park. "If it exceeds a certain distance beyond the parking range, it will automatically prompt." Yang Changfeng said.

　　The transportation department has used Beidou to form a vehicle supervision system to monitor and monitor some dangerous goods transporters, long-distance buses, and tourist buses in real time. Compared with the original period, the accident rate and casualty rate have dropped by 50%.

　　The Beidou satellite navigation system, whose positioning is accurate to the sub-meter and centimeter level, is installed on the mobile phone to solve the confusion of finding the way for "road idiots"; it can detect the shaking of buildings in strong winds, and can help monitor some natural disasters; the herdsmen on the grassland use Beidou to supervise the flock and graze… As Yang Changfeng said, "Beidou is omnipotent and omnipresent. I’m afraid you didn’t expect it, and you can’t do it, so you dare to think about it, and it will be useful if you think about it."

　　quotation

　　○ "There were atomic bombs in the 1960s and 1970s, and we Beidou people must have our own atomic clock."

　　○ "This kind of ability is forced out. To this extent, we scientific and technological personnel rely on this kind of ability. Whether it is called backbone or hard work, we finally took it down."

　　○ "At that time, we set up a table in the playground, and there were more than a dozen receivers. When we received the signal at the same time, all the people in the playground cheered and jumped. I was so happy that tears welled up in my eyes."

　　○ "Big Dipper is omnipotent and omnipresent. I’m afraid you didn’t expect it and couldn’t do it, so I thought boldly, and it will be useful if you think of it."

　　dialogue

　　With Beidou navigation, will you get lost in Chongqing?

　　Chongqing Morning News:It is said that Chongqing is a 5D magic city, and navigation must be lost. Will Beidou navigation get lost in Chongqing?

　　Yang Changfeng:When I recorded the "Let’s Talk" program on CCTV last year, I saw the magic of Chongqing. At that time, an audience member said that she was a road idiot and could not tell the direction at all, so she talked about the Xizhimen overpass in Beijing, "the first of the labyrinth". Later, Xiao Sa directly took out the Huangjuewan overpass in Chongqing. I heard that there are 5 floors above the ground, with a total of 15 ramps.

　　Now our Beidou satellite navigation system has achieved high-precision navigation, which can be accurate to decimeters, centimeters, roadbed navigation, and lane-level navigation. As long as the map is updated in a timely manner, the Beidou satellite navigation system can allow you to better experience the "magic" of Chongqing.

　　Chongqing Morning News:Which floor are we on, can Beidou also locate it accurately?

　　Yang Changfeng:In 2035, when we form the National Beidou Comprehensive PNT (Positioning Navigation Timing) system, we will be able to achieve seamless connectivity between indoor, outdoor, sky, ground, and sea. Of course, you will be able to locate your location on which floor you are on.

　　Chongqing Morning News:I heard that there are a lot of young people in Beidou Engineering Construction?

　　Yang Changfeng:The majority of our Beidou construction team are doctoral students, basically around 30 years old. Now the post-90s generation is also slowly growing up, especially our Beidou No. 3 project, which relies on these young people to support it. The new generation of Chinese youth will continue to play an important role in the construction of the Beidou system after a period of tempering.

　　In order to encourage more young people to learn about Beidou and China’s aerospace industry from an early age, we also held a youth activity competition on Beidou and held lectures on popular science knowledge.

　　Beidou Calendar

　　The three stages of the Beidou project

　　Since October 2000, the Beidou program has successfully launched more than 30 Beidou satellites in three phases.

　　From October to December 2000, the Beidou-1 system was successfully completed and four satellites were launched.

　　From 2007 to the end of 2012, the Beidou-2 system was completed to provide services to the Asia-Pacific region. "Beidou-2" is not a simple extension of "Beidou-1". It solves the technical problems of the "Beidou-1" system and provides a full range of global navigation and positioning services by sea, land and air.

　　From 2017 to around 2020, the Beidou global system will be completed to provide services globally.

1905 movie network news On the occasion of the 25th anniversary of Hong Kong’s return to China, the 12th Beijing International Film Festival specially invited the image ambassador of the Hong Kong International Film Festival to serve as the publicity and promotion ambassador of this year’s Beijing Film Festival, becoming the double ambassador of the two annual film festivals!

Looking back, in fact, Guo Fucheng has a long history with the Beijing International Film Festival, and his films have been screened at the Beijing Film Festival many times. For example, in the 11th Beijing International Film Festival, he co-starred with the chairperson of the international jury of last year’s "Temple of Heaven Award"; the 10th Beijing Film Festival Screening Films; the 9th Beijing Film Festival Screening Films; the 6th Beijing Film Festival Screening Films and the 2nd Beijing Film Festival Screening Films "B + Detective" "Favorite" and so on.

These films are of various genres, including both commercial blockbusters and literary masterpieces. Among them, Guo Fucheng’s characters are all-encompassing, from mythical big figures to small figures, from police elites to down-and-out detectives, he always has the courage to break through himself in many fields and try to create one after another charismatic movie roles for movie fans. As an all-round artist, Guo Fucheng’s pioneering spirit for the road of film is undoubtedly a model for the new generation of artists to learn. If you use his four musical masterpieces to review his screen career in the past three decades, it will definitely be wonderful.

From the art world: "I can’t finish loving you"

"I can’t stop loving you, I can love you every day, every month, every year, forever."

The four "Four Heavenly Kings" are known to generations born across half a century. However, there is a little trivia that many people may not know: Guo Fucheng, a member of the "Four Heavenly Kings", is actually the latest to debut. Although as early as 1984, Guo Fucheng became an artist in the TVB dance training class, during which he not only shot MVs, but also danced at variety shows, he has always been unknown. Guo Fucheng, who is now a household name, experienced a long career in TV dramas when he transferred to the wireless artist training class in 1987.

It was not until 1990 that Kwok Fu-cheng shot a car advertisement in Taiwan that it became an instant hit. His four-and-six-point hairstyle in the advertisement was imitated by young men and women today. Because of the popularity of this advertisement, he himself successfully launched his first Mandarin album "I Can’t Love You Enough". I believe there is no need to repeat how popular the title song of the album and the iconic dance in the MV are. After several years of silence, he finally took advantage of the wind. In 1991, Kwok Fu-cheng took advantage of the opportunity to launch two Mandarin albums and won the "Gold Award for Most Promising Newcomer" of the top ten Chinese hit songs of RTHK. In 1992, Kwok Fu-cheng developed in Hong Kong as a singer, came from behind, and jumped to the "Four Heavenly Kings", and really started his 30-year "moving" art career.

Superstar Metamorphosis: "Wild City"

"If you love what I love the most, if I am crazy and wild in my heart."

Singing and acting well is the golden rule of Hong Kong’s art scene, and it is also a touchstone for artists’ popularity. After Kwok Fu-cheng has built up his strength in the music world for a long time and soared into the sky to become the Four Heavenly Kings, movie contracts have also followed.

In 1991, Kwok Fu-cheng was invited to appear in the star-studded version of the public welfare film "Night Banquet of the Rich", which was filmed for the mainland flood fundraiser. The film had more than 200 stars participating in the performance, and the opposite scenes were regarded by the industry as the handover ceremony of the two generations of comedy kings. It is worth mentioning that Kwok Fu-cheng has not officially returned to the Hong Kong entertainment industry at this time, and he was invited to perform, which shows his high popularity that cannot be ignored. In the same year, another film performed by Kwok Fu-cheng brought him the first nomination for the Hong Kong Film Awards, which also opened his entanglement with the Academy Awards for more than 20 years.

In the early 1990s, the core of Guo Fucheng’s career was mainly in singing. Movies were mostly commercial comedies, leaving him as a dynamic youth idol on the screen. Until the late 1990s, the release of the film made a milestone change in the public’s impression of Guo Fucheng. Adapted from the popular comic of the same name, as the first martial arts film to use computer special effects to create action scenes, "The Wind and Clouds" became the Hong Kong box office champion that year with its 41.53 million Hong Kong dollars. This also allowed Guo Fucheng to complete the transformation from a youth idol to a film superstar with great commercial appeal while harvesting the most representative works of the 1990s.

Since then, with the halo of a box office superstar, Guo Fucheng has officially entered the era of co-productions.

Love is Inextinguishable: "The Call of Love"

"Who calls me softly, awaken the fire of love in my heart."

Since the director entered the mainland market in 2000, Guo Fucheng’s film works have been frequently screened in the mainland. The more and more film works are performed, and Guo Fucheng’s study of performance has become more and more diligent.

The love for movies is an unquenchable fire in Guo Fucheng’s heart, which makes him fully committed and go all out every time he interprets a character. The consistent practice over the years has also opened Guo Fucheng’s harvest season in life. In 2005 and 2006, Guo Fucheng won the Best Actor Award in an important film festival for two consecutive years for his film and film, starting the starting point of the award campaign.

After 14 years, with "Three Forks" re-nominated for the Hong Kong Film Awards performance award, Guo Fucheng has completed the transformation from supporting actor to leading actor. It seems plain but can amaze the world with a single brilliant feat, starting from "Three Forks", Guo Fucheng with "Father and Son" and "Crime and Punishment" has made a super record of four Best Actor Awards for five years.

Starlight doesn’t ask the traveler, and the hard work pays off. In 2016, Guo Fucheng finally succeeded in winning his own Best Actor trophy at the Academy Awards. At that time, the candidates competing with him in the same class should not be underestimated. They are three-time Academy Award winners and two-time Academy Award winners. Although they have only won one male partner, they have also accumulated ten nominations. However, this also makes Guo Fucheng’s long-awaited Best Actor trophy even more rich in gold.

As a filmmaker who has always loved movies, the Golden Statue Actor will not be the end of Guo Fucheng. In 2019 and 2020, Guo Fucheng was nominated for the Best Actor at the Academy Awards again for "Mai Passerby".

As time goes by, Kwok Fu-cheng has become a face that cannot be ignored in Hong Kong movies, from the dynamic king of the year.　

Breaking the Game: "Strong"

"The strong man is you, you can fly to the sky and escape the earth."

Looking at Guo Fucheng’s works in recent years, it is not difficult to find that he is still making self-breakthroughs. In addition to the box office blockbusters such as the "Cold War" series, the "Journey to the West" series, and "Unparalleled", Guo Fucheng has many different attempts. In Yao Shuhua’s director, he is a descendant of Shanxi merchants; in the director’s "Favorite", he plays a young man from a village; in the director’s "Taoist Monk Down the Mountain", he has become an expert from outside the world.

In addition to the role, in terms of director cooperation, Guo Fucheng is also open to invitations. Among the cooperative directors, there are both such Hong Kong New Wave seniors, such as, and other mainstay forces, as well as new directors such as Lu Jianqing, Liang Lemin, Zhou Xianyang, and Huang Qingxun. Guo Fucheng not only has a broad performance route, but also helps young directors complete their works as a superstar.

Although the most attention of the market is still the traditional commercial type of police and gangster films in Hong Kong, the police and gangster films starring Kwok Fu-cheng are slightly different. "B + Detective" and "C + Detective" directed by Peng Shun are a mix of horror and suspense elements, "Chills" series focuses on the power game of the police high-level, "Peerless" is like a puzzle movie… Kwok Fu-cheng never seems to mind using himself as a test subject. He always strives to explore the different aspects of today’s Hong Kong police and gangster films, stimulate the vitality of this type of film in the new era, and lead the audience into the treacherous black and white world to explore good and evil.

Guo Fucheng is always full of vitality. In the music world, he specializes in dynamic dance music and is known as the "King of Asian Dance". His dance skills have been unparalleled for 30 years. In the film industry, he has won the best actor award in many film festivals and film awards. He has worked tirelessly along the way and moved forward, gradually cultivating from an idol student to a powerful acting school. And his always-youthful, fashionable appearance and restrained and calm interior also coincide with the film festival image created by the Beijing International Film Festival.

This summer, the 12th Beijing International Film Festival will join hands with Guo Fucheng with love to create double excitement. Let’s follow the pace and welcome the grand launch of this film festival together!