Precise measurement and control to build dream space
2021-09-20 13:19:07Source: CCTV News Client
“It is necessary to adapt to the reality of increased aerospace launch density and higher requirements, optimize the organization model, innovate measurement and control technologies and methods, and ensure that the measurement and control are accurate, reliable, and successful.”
On September 15th, President Xi Jinping visited a base of the Shaanxi Army, fully affirmed the important role that the base has played in the development of my country’s aerospace industry for a long time, and encouraged everyone to carry forward the spirit of “two bombs and one satellite” and the spirit of space measurement and control. The various tasks undertaken by the base have made greater contributions to building a world-class military and building a powerful aerospace nation.
▲On September 15, 2021, Xi Jinping inspected and investigated a certain base of the Shaanxi Army. Xi Jinping made an important speech after listening to the report on the work of the base.
At 14:57 on July 4 this year, after about 7 hours of exiting activities, the Shenzhou 12 astronaut crew worked closely together and successfully completed all the scheduled tasks during the exiting activities.
How do astronauts get in touch with the ground after exiting the capsule? This is a major test of the communication capabilities between the space station’s sky and core module and the ground monitoring and control station.
In this outing activity, the third-generation relay terminal products developed by my country have established relay links with relay satellites Tianlian-1 and Tianlian-2 to realize relay communication and ensure the communication between astronauts and the ground. The real-time smooth flow.
As the only connection between the spacecraft and the ground after the spacecraft is launched, the spacecraft measurement and control communication can realize the spacecraft’s orbit measurement, telemetry and remote control, and data transmission. It is the “lifeline” of the spacecraft.
my country’s aerospace measurement and control industry has been shouldering a lofty national mission since its birth.
From the Shenzhou spacecraft manned to ask the sky to “Chang’e” and “Jade Rabbit” to explore the moon; from the “Beidou” network operation to the rendezvous and docking to set up a space laboratory… Generations of aerospace measurement and control personnel have solved many major technical problems and created A number of major achievements that have attracted worldwide attention.
On September 17, after completing the scheduled mission, the three astronauts Nie Haisheng, Liu Boming, and Tang Hongbo who had worked and lived in the space station complex for 90 days returned to Earth on the Shenzhou XII spacecraft.
“‘Tianshan’ found the target!”
At about 13:00, the Xinjiang Kashgar Observation and Control Station, known as the “first station of aerospace observation and control”, quickly completed target acquisition and successfully implemented the telemetry data reception and uplink remote control mission of the Shenzhou 12 return capsule. Soon after, the active measurement and control teams deployed in various fields took over the measurement and control baton.
In the first command hall of the Xi’an Satellite Measurement and Control Center, technicians quickly calculated and predicted the landing point through the telemetry data of the returner from the active measurement and control unit, and accurately provided it to the land and air search and rescue units.
At 13:34, the return capsule of the Shenzhou 12 manned spacecraft successfully landed in the scheduled area of the Dongfeng landing site.
“The needs of the motherland are my choice.” This is the heartfelt words of Li Jisheng, the former chief engineer of Xi’an Satellite Measurement and Control Center and academician of the Chinese Academy of Sciences.
In the 1980s, while studying in the United States, the college invited Li Jisheng many times to stay and work, but he politely declined.
After returning to China, leaders and friends asked him how he felt outside. Li Jisheng said plainly: “I am really anxious to see the development of foreign measurement and control technology. I want to bring our technology closer to foreign countries.”
After more than 30 years, in the face of strict foreign technology blockade, Li Jisheng was determined to break through a large number of cutting-edge technologies independently and gradually realized the “triple jump” with orbit accuracy ranging from kilometer to 100 meters to ten meters.
“Aerospace science and technology is an important field of scientific and technological progress and innovation, and the achievements of aerospace science and technology are an important symbol of the national science and technology level and scientific and technological capabilities.” Xi Jinping attaches great importance to the construction of space science and technology, and encourages space workers to dare to overcome all difficulties and obstacles and climb the summit of space science and technology. , So that the Chinese people will explore space more steadily and farther, and realize their great dream of building a powerful aerospace country as soon as possible.
Human beings are small in the face of the vast universe, but the spirit of human exploration is great.
Love the party and serve the country, precise measurement and control, innovation and transcendence, and dream of space. Generations of aerospace measurement and control personnel have adhered to the aerospace measurement and control spirit, and have closely linked their personal ideals with the destiny of the motherland. They have the courage to challenge, pursue excellence, and continue to explore the mysteries of the universe. Accelerate the building of a space-powered country and make new and greater contributions.
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