Shenzhou – Spress https://en.spress.net Spress is a general newspaper in English which is updated 24 hours a day. Sun, 27 Jun 2021 08:40:05 +0000 en-US hourly 1 191965906 The Twelve Shenzhou astronauts showed off their extravehicular space suits, and netizens called the “space suit” too cool! https://en.spress.net/the-twelve-shenzhou-astronauts-showed-off-their-extravehicular-space-suits-and-netizens-called-the-space-suit-too-cool/ Sun, 27 Jun 2021 08:40:05 +0000 https://en.spress.net/the-twelve-shenzhou-astronauts-showed-off-their-extravehicular-space-suits-and-netizens-called-the-space-suit-too-cool/ Modern Express News (Reporter Chen Yanlin) On June 23, during the live broadcast of the Shenzhou 12 astronauts and the ground, the astronauts Liu Boming and Tang Hongbo carried out the installation and testing of the gloves of the extravehicular spacesuit. This live broadcast was very eye-opening for netizens, especially when they saw the extravehicular aviation suits with “China Red” elements, netizens all admired the cool and good-looking “space jerseys”. “I look forward to astronauts dressing up.” !” It is reported that the Shenzhou 12 astronauts will work and live in space for three months, during which they plan to carry out two outings. △Liu Boming and Tang Hongbo are referring to the manual to carry out the installation and testing of extravehicular space suit gloves Extravehicular space suits show their true appearance, a touch of “China Red” lights up space The Shenzhou 12 flight crew’s three-month work schedule in space is well-arranged, and one of the most important tasks is to get out of the cabin. Astronauts must wear extravehicular space suits for exiting activities. According to CCTV News, at 9:40 in the morning on June 20, Tang Hongbo was taking out a large blue package from the cabin, which was taken from the node cabin lens of the Tianhe core cabin at 9:40 in the morning. Space suit. With a gentle pull by Tang Hongbo, the extravehicular space suit weighing 120 kg floated into the node compartment. Afterwards, Liu Boming entered the node module and cooperated with Tang Hongbo to remove the blue wrapping cloth. The white extravehicular space suit finally revealed its true appearance. On June 23, CCTV announced the astronauts’ working images in the China Space Station. The in-cabin images showed that astronaut Nie Haisheng was using simulation software to cooperate with the console to conduct the first training of manipulator control subjects for moving out of the cabin. In the node cabin, Liu Boming and Tang Hongbo are conducting extravehicular space suit gloves installation and testing, clothing size adjustment and other work based on the manual. A reporter from Modern Express saw in the picture that this space suit was swollen and swollen, and the design incorporated “China Red” elements. The overall look was full of technological sense and very cool. Many netizens commented, expecting astronauts to put on space suits and change their clothes, letting a touch of “China Red” light up space. Astronaut Nie Haisheng said in an interview before, “The biggest change of the spacesuit this time is the increase in the time for out-of-vehicle support. In the past 4 hours or so, this time it can stay for 7-8 hours; the second is the joint modification. Now, the mobility is better. Then some other electronic devices, including cameras, are added, which may be more helpful to complete the task.” Astronaut Liu Boming pointed out that some corresponding adjustments have been made to the clothing this time, and some materials have been replaced, making it more comfortable to wear than the original. “It turns out that grasping the safety hook is very difficult when crawling outside the cabin, because most of the physical energy is consumed on it. This time I feel that it is time-saving and labor-saving than before. So it is the improvement of this clothing. Compared with Shenzhou VII, we feel that the comfort level is higher.” Interpretation: A new generation of extravehicular spacesuits has a more technological sense Compared with the previous extravehicular spacesuits, the new generation of “Flying” extravehicular spacesuits has added many new elements to the design. A reporter from Modern Express learned that the new-generation outerwear has a total of 6 layers, with functions such as radiation protection, temperature regulation and pressure regulation, as well as a complete life support system. There is only one model of the new extravehicular spacesuit, regardless of gender and size, which can be adjusted to suit the body shape of each astronaut. Under the premise of satisfying wearing comfort and saving energy, it can ensure that the astronauts carry out a series of complex operations and related load tests in an absolutely safe environment when they exit the capsule. Wen Xin, a professor at the School of Astronautics, Nanjing University of Aeronautics and Astronautics, introduced that the space environment is unpredictable and very complex. The characteristics of the extravehicular operating environment such as strong cosmic ray radiation, temperature difference of more than 300 degrees, microgravity, and high vacuum will have a direct impact on astronauts. It even threatens lives. “Without the protection of the extravehicular spacesuit, the out-of-vehicle operation cannot be achieved. Therefore, the design of the extravehicular spacesuit has a lot of considerations and requires high-tech support. Wen Xin said that space suits are divided into two types: outside and inside. The in-vehicle spacesuit is mainly used to protect the astronauts during the launch and return of the manned spacecraft. When the spacecraft loses pressure, it will automatically fill with oxygen and pressure to ensure the safety of the astronauts. The extravehicular space suit is the key equipment for exiting activities. It is a miniature manned spacecraft and personal protective equipment in space that guarantees the working ability and life safety of astronauts during exiting activities. “This time the extravehicular spacesuit is more mobile for astronauts. This detail seems small, but the actual breakthrough is still very difficult. Because if the joints are flexible, they may not be sealed enough to ensure safety. But the seal is sealed. The performance is guaranteed, but there may be no flexibility.” Wen Xin said, “The new generation of extravehicular spacesuits incorporates high-tech aerospace technology, extends the’standby time’, strengthens the life protection of astronauts, and is not only more humane, It is safe and reliable, and has a sense of science and technology. It is an important manifestation of our country’s manned spaceflight capabilities.”

]]> 27647 When the Shenzhou 12 was launched, what did the passwords such as “Dongfeng track normal” heard in the live broadcast mean? https://en.spress.net/when-the-shenzhou-12-was-launched-what-did-the-passwords-such-as-dongfeng-track-normal-heard-in-the-live-broadcast-mean/ Thu, 24 Jun 2021 03:05:05 +0000 https://en.spress.net/when-the-shenzhou-12-was-launched-what-did-the-passwords-such-as-dongfeng-track-normal-heard-in-the-live-broadcast-mean/ At 9:22 a.m. on June 17, my country used the Long March 2 F carrier rocket at the Jiuquan Satellite Launch Center to launch the Shenzhou 12 manned spacecraft with 3 astronauts into the sky, and 6.5 hours later. Successfully docked with the core cabin.

Many viewers who watched the live TV broadcast could not help but feel puzzled by the various passwords issued by the staff in the command hall. For example, about 50 seconds after the rocket took off, they heard “Dongfeng Optical USB Radar Tracking Normal” and “Telemetry Signal Normal”. So, what do they mean by USB and telemetry?

USB: Originated from the American “Apollo Moon Landing”

USB originally originated from the US space launch mission, namely the unified S-band. Space launch requires the measurement and control of rockets in flight. Manned space launch is related to the safety of astronauts, and its requirements are higher. In the early days, space launch missions used a variety of different wavebands to perform measurement and control tasks, which caused problems such as complex equipment, heavy loads and poor electromagnetic compatibility, as well as short-term shortcomings.

In the 1960s, in order to ensure the success of the Apollo manned mission to the moon, the United States proposed a system for uniformly performing measurement and control tasks in the S-band. Therefore, a unified S-band (USB) measurement and control network was established and manned on the Apollo moon. The plan was a big success, and later this kind of measurement and control network became an international standard and was promoted.

When my country implemented the 921 manned space project, it also built its own USB measurement and control system. These measurement and control networks include numerous measurement and control stations built in the country and the Yuanwang measurement and control ship deployed on the ocean to measure the flight status of rockets and spacecraft in real time. .

Telemetry: Tracking the rocket all the way

Telemetry is the translation of English Telemetry. It cannot be understood as remote control and measurement according to the Chinese meaning. This word is a combination of two Greek roots, which translates to remote measurement.

Simply put, telemetry is an automatic communication process, through which the rocket measurement data that cannot be directly accessed can be transmitted to the measurement and control station, so as to realize the measurement and monitoring of the rocket.

After the Long March 2 F rocket was launched into the air, the ground crew could not measure the various data inside the rocket, and could only use the telemetry system to transmit the data obtained by the various sensors on the rocket back to the ground for monitoring and analysis by the technicians.

After the rocket took off, the telemetry tracking was normal all the way. If the rocket had problems in flight, the telemetry data was almost the only clue.

Stable tracking is not easy From the launch of the rocket to the final announcement of the successful launch of the Shenzhou 12 manned spacecraft, from time to time the commands of “Jiuquan tracking is normal”, “Dongfeng tracking is normal”, and Weinan, Taiyuan, Tianjin, and Qingdao are tracking normal. Although these passwords are plain and unremarkable, they are the result of the efforts of countless Chinese astronauts. my country’s Aerospace USB measurement and control network has deployed a large number of measurement and control stations on the ground. These measurement and control stations are equipped with optical and radar tracking equipment to track rockets in flight in real time. In the live broadcast, you see the image of the rocket flying, which is the optical tracking picture provided by the photoelectric tracker. It is similar in principle to the automatic tracking telescope, but the performance is much more advanced. The tracking radar uses a narrow beam to track the target, and the rocket is always within a few tenths of the radar beam to be tracked stably and obtain accurate data. The optical radar tracking is normal, indicating that the optical and radar of the measurement and control station have locked the rocket stably and effectively, and the flight process is under control. Applause sent to mission critical nodes The launch mission of the Shenzhou 12 manned spacecraft involves both the tempering of the rocket and the test of the spacecraft. Careful netizens will find that there were many applauses in the flight control hall during the live broadcast. The first applause occurred when the ship’s arrows were successfully separated, the second time was when the spacecraft’s sun wing was deployed normally, and the last time was when the mission was announced successfully. Ship-arrow separation and solar wing deployment are two hurdles that must be crossed for a successful mission. Although the reliability and safety of the Long March 2 F rocket have reached 0.97 and 0.997 respectively, the manned launch must be foolproof, and no one can truly rest assured until the last moment. Seeing the success of the separation of the ship and the arrow in the live broadcast means that the rocket has retired and completed its mission. The applause is well deserved. The test of the Shenzhou series spacecraft during launch is relatively simple. The main task is to deploy the solar wing to provide power to the spacecraft. However, many international spacecraft fail to deploy the solar wing. However, the Shenzhou 12 manned spacecraft successfully deploys the solar wing. It means that the “future” of the spacecraft’s power supply system is bright, and it is naturally worthy of applause in return. After the spacecraft successfully entered the scheduled orbit, Director Zhang Zhifen of the Jiuquan Satellite Launch Center announced the successful launch of the Shenzhou 12 manned flight mission, which also raised the enthusiasm of the staff and the audience to a new climax. Affirmation and pride in my work. Text/Zhang Xuesong Original title: There are many kinds of passwords for the launch of Shenzhou 12 Source: China Aerospace News [责任编辑: ]

]]> 27184 After seeing the true background of the three astronauts on Shenzhou 12, I understood what the so-called shortcut is. https://en.spress.net/after-seeing-the-true-background-of-the-three-astronauts-on-shenzhou-12-i-understood-what-the-so-called-shortcut-is/ Wed, 23 Jun 2021 14:34:12 +0000 https://en.spress.net/after-seeing-the-true-background-of-the-three-astronauts-on-shenzhou-12-i-understood-what-the-so-called-shortcut-is/ The most exciting news during this period is probably the successful launch of the Shenzhou XII.

The three astronauts have therefore become the “hottest men in recent days.”

There are endless reports about them, and what surprised me most was the family background of the three astronauts.

Nie Haisheng, who flew into space three times, was born in a small village in Yangdang Town, Zaoyang, Hubei. His parents depended on farming to make ends meet.

Liu Boming, 55, was born in an ordinary farmer’s family in Dongsheng Village, Hongxing Township, Yi’an County, Heilongjiang.

The youngest Tang Hongbo was born in a small village in Xiangtan, Hunan. His parents are the most simple farmers.

Not only the family background, but the life experiences of the three astronauts are also strikingly similar:

All were born in the “bad family”, grew up in the countryside, and suffered a lot of life when they were young;

Overcome many difficulties and persist in studying, and go out of hometown by studying hard;

Relying on excellent physical fitness, tenacious willpower to become a pilot, and finally an astronaut.

Moreover, the three of them have never stopped reading. Now Nie Haisheng has a doctorate degree with the rank of major general; Liu Boming has a master’s degree with the rank of major general; and Tang Hongbo has a master’s degree with the rank of major general. What is a good way out for ordinary children? I think the three astronauts gave the answer with their own life experiences. Reading is the only shortcut for most ordinary people to “counterattack.” 01About life Yan Yan: In the eyes of many people, perfectionism is a compliment. The perfectionist tendency also has positive value. For example, pursuing high standards, paying attention to details, being serious and responsible, and striving for perfection. These positive values ​​can increase the probability of success, but in fact, perfectionists will not be easier to succeed. The reason is that perfectionism requires a price and has many negative effects. These negative influences offset and exceed the positive value, which will reduce the probability of success of the perfectionist. For example, perfectionists often procrastinate due to anxiety about making mistakes and failures, and are unable to start something, let alone succeed. Yan Yan: Information and intelligence are messengers of money. How much you can get depends on how much you can know. Yan Yan: People with different cognitions see different worlds. 02About self Yan Yan: Modesty can make people feel awe. Only with awe, perfection will truly understand: part of the success achieved is due to ability and hard work, but a greater part is due to luck. Yan Yan: As Einstein said: “Not every thing that can be calculated is meaningful, and not every meaningful thing can be calculated.” Learn to live at your own pace. Gain true comfort and freedom. Yan Yan: Psychologist Schwartz has a “Swartz thesis”, saying: All bad things can truly become unfortunate events only when we think they are bad. In many cases, things are not that bad, and they think they are bad, so things really get worse. 03About social Yan Yan: American comedian Bill Kos once talked about the secret of his success. He said, “I don’t know the secret of success, but I can be sure that the secret of failure in life is to please everyone.” Enriching oneself is more powerful than pleasing others. Yan Yan: There is a line in “Beijing Meets Seattle”: “Even if he doesn’t take me on a yacht and eat French food, he is willing to cross three streets every morning and buy me my favorite soy milk fritters. “The true and long-lasting love is not the earth-shattering weeping, but the small details that flow in daily life. Yan Yan: The poet Gu Cheng said: “The wind is growing its leaves, and the grass is growing its seeds. If we stand and don’t speak, it will be very beautiful.” Getting along well with others is also an ability. Organizer: Yan Yan, intensive reading of the main creation, there is a limit in life, but there is no limit in knowing

]]> 27018 The youth power behind the Shenzhou 12 launch mission｜Li Xiaolin: Carry the spaceship on your shoulders and move forward https://en.spress.net/the-youth-power-behind-the-shenzhou-12-launch-mission%ef%bd%9cli-xiaolin-carry-the-spaceship-on-your-shoulders-and-move-forward/ Mon, 21 Jun 2021 12:54:11 +0000 https://en.spress.net/the-youth-power-behind-the-shenzhou-12-launch-mission%ef%bd%9cli-xiaolin-carry-the-spaceship-on-your-shoulders-and-move-forward/ At 9:22 on June 17, the Shenzhou 12 manned spacecraft launched from Jiuquan, successfully entered the scheduled orbit, and completed the deployment of the solar wing. This is another feat written by the Chinese in the history of China’s manned spaceflight, marking the Chinese space station. The construction task has once again taken a big step forward. In Jiuquan, a hot land full of merits, the Shenzhou team gathered again and again in the place where the Dongfanghong-1 satellite was raised, burying their heads and making swords for the country’s manned spaceflight industry and opening up the sky. Generations of young people hold high the relay torch of the spirit of manned spaceflight, with their hearts in Shenzhou, and building their dreams for the country. Today, “post-80s” and “post-90s” have devoted themselves to it, with aspirations, doing practical things, and walking into them, we can hear the most The full, most passionate youth story.

Carry the spaceship on your shoulders and move forward Narrator: Li Xiaolin, Comprehensive Test Engineer, Shenzhou 12, Fifth Academy of Aerospace Science and Technology Group My fate with Shenzhou spacecraft began in August 2010. After graduation, I became an aerospace engineer, mainly involved in the comprehensive testing of Shenzhou-8. At that time, it was the first prototype stage of Shenzhou 8, and then it turned to the positive prototype stage. I learned a lot of testing experience and testing methods from it. In August 2011, I participated in the Shenzhou-8 launch site mission. The mission successfully broke through the first rendezvous and docking technology, laying a solid foundation for subsequent manned rendezvous and docking. At the end of March 2021, as the captain of the youth commando team of the Shenzhou 12 mission launch site test team, I entered the Jiuquan launch site and began to perform the launch site mission. The Youth Commando Team of the Shenzhou 12 Mission Launch Site Test Team is a youth team, but it is composed of overall design, testing, and assembly teams. As a comprehensive test, we will do our best to check the health of the spacecraft, and carefully escort her into space in perfect condition until the last second before takeoff. Looking back on the days and nights that we have been struggling together, we can never forget the mutual encouragement of the two ships during the high-intensity test in parallel during the epidemic, and the unforgettable long-distance test link after opening up the “transformation of the sky”. It is even more memorable to face the challenge of twice the previous workload at the launch site. At that time, our resolute eyes, never a hero who fell from the sky, only mortals who stood up, ordinary and tough, tried hard to hold the spaceship on their shoulders and forge ahead. During the testing phase, the young commandos of the test team of the Shenzhou 12 mission launch site, we took the initiative to work overtime to complete the test tasks to ensure quality and quantity. The test time has changed from 14 days to 11 days, which has won valuable for the overall progress of the model. time. During the propellant refilling phase, we have people on duty 24 hours a day, ensuring the safety of the Shenzhou model during the refilling process. In the final stage of the 30-minute countdown to the launch, we were responsible for the withdrawal of the tower cable and the safety of the astronauts for the complete success of the model launch. In the mission of the launch site, we always adhere to the concept of “solving problems together, overcoming difficulties together, grasping margins together, and taking risks together”. We work hard in coordination and go all out to work hard at all stages of the launch site. Bravely shoulder heavy responsibilities, inspire enthusiasm for struggle, and strengthen the ideal of serving the country, contribute youth to the successful mission of the Shenzhou XII spacecraft launch site, and inject youth power into the smooth development of the space station construction task. Guangzhou Daily·Xinhuacheng reporter: Xiao Huanhuan, correspondent Chai Yue Guangzhou Daily·New Flower City Editor: Cai Lingyue

]]> 26281 “Shenzhou” enters a new era: Shenzhou 12’s GNC system is fully upgraded to help the space station construction https://en.spress.net/shenzhou-enters-a-new-era-shenzhou-12s-gnc-system-is-fully-upgraded-to-help-the-space-station-construction/ Mon, 21 Jun 2021 11:53:18 +0000 https://en.spress.net/shenzhou-enters-a-new-era-shenzhou-12s-gnc-system-is-fully-upgraded-to-help-the-space-station-construction/ At 9:22 on June 17, about 6.5 hours after being in orbit, under the autonomous control of the GNC system (guided navigation and control system) developed by the Fifth Academy of Aerospace Science and Technology Group 502, the Shenzhou 12 manned spacecraft carried 3 The astronauts completed a fully autonomous rapid rendezvous and docking with the Tianhe core module. This is the first rapid rendezvous and docking implemented by our manned spacecraft in space.
The GNC subsystem is the core subsystem of the spacecraft. It is an aspect that best reflects the level of spacecraft development. It ranges from emergency rescuers when the spacecraft is launched, to the attitude and orbit control of the spacecraft during the space flight, and windsurfing control, and then to the complete communication with the space station. Autonomous rendezvous and docking, as well as flying around, and human control operations are all guaranteed by the GNC system. Since the first flight of the Shenzhou 1 manned spacecraft GNC system in 1999, after years of evolution, the Shenzhou 12 manned spacecraft GNC system has been fully upgraded, providing strong support for my country’s space station construction.

Multi-plan and fully autonomous “rapid rendezvous and docking” Compared with the Shenzhou 11 manned spacecraft and the spacecraft in front of it, a big difference between the Shenzhou 12 manned spacecraft is the introduction of the rapid rendezvous and docking of the Tianzhou cargo spacecraft in the manned spacecraft for the first time. The full-phase and fully autonomous rendezvous and docking function of the second cargo spacecraft. It is reported that according to the functional requirement that the rapid rendezvous and docking required by the mission is less than 6.5 hours (according to the official caliber), the 502 Institute of the 5th Academy of Aerospace Science and Technology Group combined with the short-distance rendezvous and docking time setting, and designed multiple sets of plans for the long-distance autonomous rendezvous. , These are fully autonomous programs. Of course, the plan can also be personalized, that is, customize on-demand through the ground, and inform the GNC system before launch, then the system will execute the whole process autonomously. Proximity rendezvous was already a fully autonomous plan at the second step of the “three-step” strategy of China’s manned space project. However, due to the new characteristics of the space station’s multiple interfaces and the backward-facing interface when there is a cargo spacecraft docked, it is a cooperative goal for backward cooperation. The occlusion and other constraints. The third step close rendezvous On the basis of the second step, the docking point rendezvous plan, the original design state and flight mode are modified, and new flight conditions are added-the direct rendezvous plan, relative to the docking point rendezvous plan, the direct rendezvous plan It takes less time and consumes less propellant. Set a point cleverly, saving time and effort This is a point in the space near the space station. It is the soul of the short-range fully autonomous direct rendezvous program. It is the crystallization of the further improvement of my country’s space rendezvous and docking technology and orbiting technology. It is also the third step of the manned space project to achieve rapid rendezvous and docking. shortcut. In order to meet the new requirements of multiple pairs of interfaces and rapid rendezvous and docking for space station operation, the three-step strategy for manned space project 502 of the Fifth Academy of China Aerospace Science and Technology Group is based on the second step mastering automatic and manual rendezvous and docking and orbiting technologies, and the third step is In the space station phase, a new flight feature point—the midpoint of sight—is added to the rendezvous and docking mission. The mid-point aiming point is the abbreviation of “midway aiming point” for rendezvous and docking. It is the “transfer station” before the rendezvous and docking of manned spacecraft, cargo spacecraft and space station. It is located behind and below the space station. Through this point, it is the most convenient and quick to complete the connection with the space station. The rendezvous and docking of the forward, radial and backward docking interfaces has the characteristics of saving time (time) and labor (propellant consumption). The introduction of the midpoint is a manifestation of the continuous development of my country’s rendezvous and docking technology and the confidence in design and implementation. If the rendezvous and docking is likened to mountain climbing, the rearward anchoring point rendezvous method in the second step of the manned space project requires a rehearsal or rehearsal to climb several times during the formal summit. The previous summit is for the final formal summit. It is time-consuming and labor-intensive to confirm your own status and related guarantee conditions. The mid-point rendezvous method is through the “mid-point”, the match point near the top of the mountain. During the process, you can confirm the target and guarantee conditions, and dynamically adjust the climbing rhythm according to your own status until you reach the top. The time effort can save up to 40%. . Guangzhou Daily·Xinhuacheng reporter: Xiao Huanhuan, correspondent Chai Yue Guangzhou Daily·New Flower City Editor: Cai Lingyue

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