As ten o'clock approached, the atmosphere in the entire Xinyuehu Aerospace Command and Control Hall became tense.
All personnel are staring at the big screen, waiting for the last moment to arrive. This last fourteen-minute journey will determine the success or failure of the entire project, and determine whether the investment of hundreds of millions of yuan has been wasted.
Do you not need to intervene in this descent process? Zou Xiaodong, who was sitting next to Zhang Jun, asked.
When Yu Chengwu, who was staring at the screen in the front row, heard this, he immediately leaned back on his chair and turned around to explain to Zou Xiaodong: "No need, the whole process is completed automatically by the system.
Although we have set up a series of automatic programs before, the entire lander only needs to follow the steps set by the program. However, considering some emergencies encountered during the entire descent and landing process, it needs to be relatively
Emergency measures.
Therefore, we have added an artificial intelligence system, which can perform corresponding processing based on real-time data changes during descent and landing, thereby controlling the lander to land safely and smoothly on the lunar surface."
Having said this, Yu Chengwu turned to look at the big screen, then turned around and continued: "In fact, in addition to the autonomous landing mode, we also have a manual mode, but this is only a backup for emergency use.
plan."
Everyone nodded after hearing this, and everyone looked at the big screen again. On the big screen was a real-time picture captured by the lander's external camera. In the picture, the entire lander was flying slightly over the lunar surface at a very fast speed.
, below are some large and small craters and craters, which look very desolate.
Beyond the arc-shaped horizon is the pitch-black space. Under the strong light of the moon, no starry sky can be seen, only one side is black.
Of course, our earth can be seen at the right angle, but the earth we see is the same size as the moon when we stand on the earth, but it is blue.
What this external surveillance camera captures is actually black and white images. This is mainly because black and white images do not take up credit, and more image information is saved. Therefore, basically the external surveillance cameras on each spacecraft and satellite also have specialized
What is captured by remote sensing lenses are basically black and white photos and video images, with only a small number of color images.
The reason why some of the photos and videos we see are in color is the product of post-production color correction. Of course, some are color videos and photos taken directly, such as real-time footage taken by the space station's external camera.
This is colorful.
However, the external functional camera on this detector only captures black and white images, which is enough for scientific researchers.
The reason why the video picture on the big screen is now in color is because it has been calculated and processed through the artificial intelligence system, so it can restore the picture comparable to color video and photos.
These are pictures and photos that are just for the sake of looking good, and do not mean much to scientists. Even half of the time, they are more willing to pay attention to those black and white videos and photos.
Prepare to implement power down, five, four, three, two, one, engine start.
The engine started, the lander's speed began to slow down, and relying on the gravity of the moon, the lander began to descend downward. Under the control line of the attitude engine, the attitude of the lander changed from a horizontal state to a vertical state.
Of course, it is not completely vertical, but has a downward arc or oblique angle. The lander will gradually correct its attitude as it continues to descend and decelerate, and then gradually land.
Bang bang bang bang...
There was a burst of applause in the hall, and Lin Wei and other guests who didn't know much about it immediately followed suit.
However, the applause soon fell, and these researchers continued to stare at the big screens. This moment was the most painful for them, because apart from staring at the real-time data and pictures on these big screens, they could not do anything.
They can't do anything. This should be considered the most helpless time for them. All hope is placed on the lander and the intelligent control system mounted on the lander.
The time on the big screen increases every second, the landing countdown decreases every second, and the altitude from the ground is also constantly decreasing.
Through the demonstration screen, everyone can clearly see how long the lander is from the ground at this moment.
During the landing process, the images returned by the external camera on the lander also began to become laggy. Of course, the lag time was only a minute or two, and after that, it became smooth again.
Through the external camera installed on the bottom of the lander, the lunar surface that is getting closer and closer can be seen very clearly.
The "Wangshu-2" lunar surface patrol rover has not been doing nothing these days. It has opened up a huge landing site for the entire lander on the lunar surface, and also used the patrol rover's trajectory and robotic arm to
A large landing mark was drawn in the middle of the landing field.
At this moment, in the picture returned by the external camera at the bottom of the lander, the planned large landing mark H is clearly visible. Moreover, the intelligent control system of the lander has also captured and recognized this landing mark, and began to act according to this
The landing mark begins to adjust the descent angle of the lander, thereby achieving a precise landing.
Fourteen minutes seems to be a short time, but at this moment, everyone feels that it is extremely long, as if every minute is suffering, but they are both afraid and looking forward to the arrival of the final landing moment.
At this time, Yu Chengwu, who had been staring at the big screen, suddenly leaned back in his chair, turned around, smiled at everyone and said: "When the lander descends to a height of about 100 meters from the moon, it will hover briefly.
This process lasts about two or three seconds. On the one hand, it is of course for the purpose of deceleration, and on the other hand, it is for the final identification of the landing site to determine the final landing site.
In fact, this is not only true for our lander, but also for other lunar landers. It will draw a radar picture of the lunar terrain during the hovering process, and then automatically avoid those craters and rocks.
Find a flat place to land.
Although our landing site was developed and explored by the Wangshu-2 lunar surface patrol rover, to be sure, we added this procedure to ensure that the lander can land safely."
The lander begins to hover.
When Yu Chengwu was introducing, the landing picture on the big screen suddenly stopped, and then, about two or three seconds later, the entire picture continued to change.
I saw that the picture was getting closer and closer to the lunar surface, and finally, after a burst of blur, the picture turned dark black.
