Not long ago, the graduate students of Shenzhou 16 crew astronaut Gui Haichao came to the broadcast site of a program and shouted to Teacher Gui: Even if the teacher "goes to the sky", the students in the research group are actively promoting their own research work, please rest assured!
Then again, how can you get a tutor who is 400 kilometers away from the ground to help you read the paper?
How to communicate the thesis with the supervisor of "heaven"?
Telephone communication
Cold knowledge: If the tutor is empty on the space station and wants to guide the student, he can also call the student directly to urge the paper! It is recommended that the mobile phone should not be muted, otherwise -
In addition, students can also go to the secret room of the Chinese Astronaut Scientific Research and Training Center or the Beijing Aerospace Flight Control Center, and communicate with the tutor by voice according to the tutor's schedule, and the content of the call will basically not be heard by the ground staff, so students do not have to be too stressed!
Two-way video
It's better to hear the sound than to meet, in the secret conversation, online face-to-face communication can also be arranged! During the weekday break, astronauts can learn about news events happening on the ground through the screen in the core module, in addition to video connection with the ground. Through video communication, students can ask the "heavenly" tutor face-to-face, and it feels that there is not much difference from when they are on the ground!
File transfer
If you want to ask the "heavenly" tutor to help guide the paper, you also need to submit the relevant questions to the space station first. The content must be approved before going up, and the text, pictures and even videos must be inserted into the "attachment" through the ground staff to the tutor, and the tutor can directly view it with a tablet or laptop after receiving it, so as to achieve "paperless teaching" SO EASY!
To sum up, the tutor wants to guide the student's paper on the space station, and the distance is really not a problem!
How does the technology of Tiandi Chat advance?
In 2003, Yang Liwei took off on the Shenzhou 5 manned spacecraft, Chinese entered space for the first time. During this period, he made several heaven-earth calls with the ground control station, but due to the limitations of ground measurement and control, each time there was a strict time window. At that time, the communication technology of heaven and earth was just beginning, the bandwidth was very low, Yang Liwei could only hear the sound of the ground, and could not see the picture; The ground personnel saw that Yang Liwei's picture quality was not very clear, and he was often "stuck".
Yang Liwei, who carried out the Shenzhou 5 manned mission, had a dialogue with his relatives
At the time of Shenzhou 9, the mainland space and earth communication technology was further improved, and two-way visual communication was realized. Thanks to the improved bandwidth, the images became clearer, and the real-time scenes of the three astronauts in the capsule were clearly displayed on the ground communication system screen.
Real-time picture of the Shenzhou-9 astronaut crew in orbit
By the time Shenzhou 10, the Skylink relay satellite system has achieved three-star networking, and the call time between heaven and earth is longer. Thanks to this, the first "space lesson" was perfectly staged, and the 40-minute course was clear and coherent. At that time, Bluetooth communication technology was used, and on the basis of point-to-point propagation, the communication between three astronauts and between astronauts and the ground was realized.
The Shenzhou 10 crew astronauts are teaching space to students on the ground
In 2016, on Tiangong-2, astronauts have been able to communicate with the ground almost at any time, send and receive emails, and communicate with relatives and friends with audio and video. Among them, the voice transmission adopts the international advanced encoding and decoding scheme, breaking through the bottleneck of the previous only grasping the basic life tone, and realizing high-quality voice communication in the extreme physical environment of space.
The Shenzhou 11 astronaut crew entered the Tiangong-2 space laboratory
Today, with the development of China's manned spaceflight industry, the project has steadily entered the era of space stations. Not only has it become a reality to communicate with astronauts at any time, but it can also realize two-way transmission of voice and video images. Our measurement and control communication network can not only meet the needs of high-definition transmission of image quality, but also ensure that the images of multiple astronauts on the space station from "multiple perspectives" are transmitted back to the ground in real time and clearly. Not only the astronauts' exit and space station activities are clearly visible, but also a vivid "space lecture" can be "just said".
Shenzhou 13 astronauts are working and living on the space station
Unexpectedly, the tutor of "heaven" can also check the research progress of students at any time!
The paper is on the line, cherish this relationship!
Source: China Youth Daily