Technology: The naughty kid ruined my college entrance examination, but I turned over to nuclear fus

"Chief Engineer Lu, you also know that microsatellites need to form a dynamic network topology to realize data transmission and forwarding."

Lu Yu nodded and said, "Well, I understand.

"Okay, then I'll continue."

Lin continued:

"This requires consideration of link quality, routing strategy, resource allocation, congestion control and other issues between satellites. At the same time, microsatellites also need effective network management and security protection, and software updates. "

If there is no way to ensure efficient management, it will cause a more serious problem."

"Then poke the compatibility and coordination of satellites."

"Microsatellites must be compatible and coordinated with terrestrial and other satellite networks to enable seamless service switching and roaming. In the process of network switching, the same will receive interference problems from Mars electromagnetic radiation, thereby adding high latency to the switchover.

"If you choose a normal satellite, this trouble is easy to solve." But this time we are not using conventional satellites, but microsatellites.

"Due to the large number of microsatellites and crowded orbits, collisions with other satellites or space junk are likely to occur, resulting in damage or failure of satellites!"

"It even triggers a chain reaction and causes greater losses!"

"However, whether conventional satellites can meet our needs is a bit difficult!" If you really decide to use microsatellites, then this jamming problem must be solved to ensure that they do not collide!

Director Lin described the general problem again.

Lu Yu also instantly understood what kind of trouble they were encountering.

With the gradual development of human science and technology, the amount of space junk in space is becoming more and more large, especially the circumpolar solar system.

With the increasing frequency of space activities, near-Earth space is becoming more and more crowded.

In previous years, there were only about 5,000 artificial satellites operating in space, but spacecraft approach events have emerged one after another.

But now, with the surge in the number of satellite launches, especially with the gradual advancement of NASA's construction of a total of 42,000 satellite constellations, the issue of space traffic safety has become more prominent.

This is like having more cars on the road, and the probability of traffic accidents will definitely increase!

And the microsatellite network is not an ordinary satellite, but a satellite that needs to be deployed on a large scale, and the probability of an accident is far more than ten times the probability of ordinary satellites!

Once the satellite launch is in trouble, then Zhurong-2 will lose network information transmission, and it is likely to be lost in the dust storm of Mars!

There's another trigger, and that's the weather!

Weather phenomena in space, such as solar wind, geomagnetic storms, auroras, etc., will adversely

affect satellites in space, these phenomena will heat up the upper atmosphere, causing it to heat up and expand, making the density of the upper atmosphere increase!

As a result, the drag suffered by satellites in low orbit increases dramatically, causing them to fall into the atmosphere!

Just like last year, 40 of the 49 Starlink satellites launched by NASA were severely affected by geomagnetic storms and fell to the blue star! The current Zhurong No. 2 encounters similar problems, and it is a big trouble caused by the superposition of two triggers!

This trouble... It's tricky indeed!

"Director Lin, do you have any thoughts these days?"

Lu Yu asked slowly.

In the field of aerospace, Director Lin also has two brushes, and his ability may not be lower than his own!

"Okay, then let me talk about my own thoughts first."

Director Lin was also not polite, and said:

"I think that if we want to organize this trouble, we must ensure that none of our microsatellite networks fall, and no problems can occur with each one!"

"Chief Engineer Lu, you also know that microsatellites need to form a dynamic network topology to realize data transmission and forwarding."

"If even one of these satellites collides or destroys, it leads to a degradation of network link quality, a failure of routing policies, and confusion in resource allocation. Congestion control can also be momentarily out of balance!

"And once such a problem occurs, the possibility of problems in other satellites will be greatly increased, and it will affect the whole body!"

"Hmm."

Lu Yu said solemnly:

"This idea of yours is with me."

"It's not just about the network."

"The collision or destruction of satellites can produce a lot of debris, even microsatellites."

"These debris will continue to travel in space, colliding more with other satellites or space junk, forming more debris."

"This is the so-called Kessler phenomenon, the collision cascade effect."

"Once there is a problem with one satellite in our microsatellite network, it will turn that area of space into a dangerous garbage dump, posing a more serious threat to satellites and spacecraft in orbit!"

"So, either no insurance or full insurance!"

The two looked at each other, and at this point, Director Lin and Lu Yu reached an agreement.

"My current thinking is still around standardized management."

"Originally, I planned to communicate with the international side to see if we could cooperate, but now it seems that there is little hope, but this point will be discussed at that time."

Director Lin showed a wry smile on his face and explained: "

I originally planned to strengthen the monitoring and control of satellites, as well as the prediction and early warning of the space environment, and timely detection and handling of abnormal situations, so as to avoid or reduce satellite collisions and destruction."

"But from this perspective alone, I am afraid that there is no way to completely reduce the possibility of accidents."

"I also have some ideas, such as the use of multifunctional structural parts, so as to integrate the structure with circuits, sensors, antennas and other functions to reduce the volumetric mass of satellites."

"Or low-power chips and software algorithms can be used to achieve energy saving and intelligent management of satellites."

"Another idea is to use fault-tolerant and self-healing technology to improve the fault diagnosis and recovery of satellites. But after testing by our research group, these are not highly likely to succeed. So... I had to ask you to come and preach the Scriptures to us. Director

Lin told Lu Yu all his thoughts these days.

It is obviously impossible to reduce the probability of accidents to 0%! The universe is vast, let alone these microsatellites, even a planet as big as Blue Star may suddenly end in the next moment!

No one is sure that a microsatellite network will work 100 percent smoothly.

And what Director Lin and Lu Yu are discussing is how to try to reduce this probability to the lowest point!

Only by reducing this probability to the lowest point, after launching the satellite network, the WeChat satellite network can operate smoothly and complete the network connection requirements of Zhurong 2.

As an expert in domestic aeronautics and astronautics, Director Lin is naturally not a general person in the field of professional knowledge, and before Lu Yu came to the laboratory, he had already thought of many ways to see if he could solve this trouble.

But after some actual testing, I found that although the method I came up with could reduce this probability to a certain extent, it was far from enough for the satellite satellite network to operate safely!

This is also why Director Lin knew that Lu Yu was very busy, but he still had to call him to Zhurong No. 2 Research Institute.

Without Lu Yu's help, he felt that it would be difficult for him to solve the damn trouble of microsatellite networks colliding with each other in a short period of time!

"Your thoughts..."

Lu Yu frowned slightly, going through all the thoughts that Director Lin had mentioned before in his mind.

"I think they are theoretically sufficient."

"But there's something missing that is holistic, stringing it all together! If I could string them all together, I think I might be able to... Achieve our goals! "

Strung up?"

Director Lin raised his eyebrows, and there was a hint of curiosity in his eyes: "Chief Engineer Lu, can you expand and talk about how it is strung together?"

"Director Lin, then I'll say it bluntly."

"Some of your previous ideas mainly revolved around a few specific parts, such as reducing power consumption chips to improve the accuracy of software algorithms, and achieving energy saving and intelligent management of satellites."

"These methods are very ingenious."

"But they all operate independently of each other, and no single system can count them together."

"And some of the other ideas you put forward are to make our satellites adaptive repair capabilities, improve the fault diagnosis and recovery capabilities of satellites."

"I think this idea is not very likely, according to our current aviation materials technology, it is a bit impossible to use nanomaterials on microsatellites."

"So I think if we want to expand this technology in detail, it should still revolve around the solutions you proposed earlier."

"Seek truth from facts and do it steadfastly."

Lu Yu summarized.

"Well, Chief Engineer Lu, I agree with what you said."

Director Lin bowed his head slightly, and a wry smile appeared on his face: "In fact, I also understand that with the current level of aerospace materials in our Dragon Kingdom, it is indeed difficult for a strong man to make satellites have adaptive repair capabilities."

"The reason why I proposed this method at the time is that there is no way."

"Think about what special options we can find to improve the normal operation of our microsatellite network."

"Hmm!"

Lu Yu nodded and said, "I understand."

"Chief Engineer Luo, do you have an idea now?"

Director Lin asked again:

"What kind of means do you say string together, what kind of means do you use to string together the plans I said?" Is it to construct another network system in the microsatellite network and combine and calculate the parameters of each component?

His mind followed the plan proposed by Lu Yu, and slowly put forward his conjecture.

"I'm thinking a bit like what you said, but it's not exactly the same."

Lu Yu said sincerely:

"Director Lin, have you ever thought about introducing microelectromechanical technology?"

"Are you talking about mems?"

Director Lin's gaze froze!

---

the other side

, "Sir, please,

let's call the monitoring."

"We really just want to find a picture, find that picture and take pictures, just such a little thing, why can't we accommodate it?"

Ye Qiaoqiao opened his big watery eyes and set his gaze on the uncle in the monitoring room.

"This..."

The uncle in the monitoring room showed a look of embarrassment on his face:

"Two little girls, it's not that I don't want to help you investigate." The problem is that we have clear regulations for monitoring and calling, and we need to have specific cases or clearly explain our intentions in order to be able to mobilize monitoring.

"You didn't lose anything, and you didn't say what you were going to do, so let's adjust the surveillance?"

"Isn't this asking me to invade the privacy of pedestrians?"

Early this morning, he was sitting in the monitoring room, drinking tea and listening to book reviews.

It was originally leisurely, but suddenly two little girls did break in, and a little girl looked at the white skin in her facial features, and her body exuded the breath of youth.

The other little girl looked quite strange, wearing a sunglasses and mask on her face, and a large sun hat on her head, wrapped tightly, like a mummy running out of a pyramid!

As soon as the two little girls came in, they said that they wanted to check the surveillance.

And they don't explain what they came from for, whether they lost something or something?

This is also quite difficult for the uncle of the monitoring room.

Under normal circumstances, it is nothing to be accommodating.

But the little girl in the hat not only did not want to register her real name, but even refused to show her face... This strange behavior really made this uncle in the monitoring room a little uneasy!

"Sir, please!"

"She and I are both students in the nearby area, we really are not the kind of people who have any bad intentions, can't you really give us accommodation?"

Ye Qiaoqiao looked at the coquetry, and this plan seemed useless.

She suddenly thought of something and felt a small stack of bills from the inside of her bag.

"Sir, you are older, you still need to maintain your body on weekdays."

"How about you take these, go buy some supplements, and give us accommodation?"

Saying that, Ye Qiaoqiao shoved this small stack of banknotes into the hand of the uncle in the monitoring room!

"Eh!"

"What for!"

This frightened the master of the monitoring room, and quickly pushed back:

"If you don't learn well at a young age, how can you even learn this bad habit?" Take a look and take it back!

"Really!"

"Give me this set again, I'll kick you out now!"

Uncle rolled his eyes as he spoke.

He passed down two sets of courtyards at his home in Kyoto, I don't know how much money was demolished just for demolition, even if I lay down to collect rent a month, the reason why I came here to watch the monitoring work is because I think lying at home is too boring!

Such a small hundred, want him to make mistakes?

Funny!

Ye Qiaoqiao, who was rejected, also showed an embarrassed look on his face, and carefully put the stack of banknotes back.

"Miao'er, what should we do now?"

“..."