cosmic hegemony

Chapter 149, Clairvoyance Global Positioning Navigation System
At the Space Center of Fuyun Group in Longling Town, Li Fu, who was dressed in a white coat, was leading people to discuss the company's future space development plan.

"Now that we have our own aerospace plane, there will be no problem going to and from space in the future, but we are now restricted in many aspects. The navigation and positioning system we use is the Beidou on the country's side. If you stay, you can only choose to park at the Tiangong space station."

"So I think the next step, the core of our work should be to establish our own navigation and positioning system and our own space station. In this way, we will have our own foothold in space in the future, and the further plan is to be on the moon. while building our own space station and permanent moon base, mining resources, and more.”

Li Fu sent the next step plan to everyone present through his virtual machine. The more the company developed, the more Li Fu felt that he was restrained and it was difficult to implement it.

Not to mention anything else, just that every time an aerospace plane travels to and from space, an application must be made in advance. Maybe it is because the policy allows it, so the application is easy to pass. If the policy changes in the future, at that time, in a word, Fuyun Group will It's hard to keep going.

If the company develops further in the future, and the scientific experiments that need to be carried out have greater influence, then there will be more constraints and so on, which makes Li Fu feel very helpless.

"Maybe I should learn from His Majesty, the founding emperor of the Great Han Technology Empire."

Such thoughts flashed through his mind, but soon Li Fu didn't think too much, and continued to discuss the future space development plan with his subordinates.

"Brother Fu, we should also build space factories, space energy bases, and develop space agriculture in space."

Yu Liang also looked very excited at this time, and opened his mouth wide with a grin.

"Don't think too much, our next step is to get our own global positioning satellite system out first, and then we will build a space station for ourselves first."

"The global positioning satellite system is not difficult. We only need to make satellites and launch them all into space at once with an aerospace plane. As for the technology of the space station, it is not difficult. I just don't know if the country will Will allow our private companies to own their own space stations."

"In space, you shouldn't have to worry about this, right?"

"Having said that, it's better to apply with the country."

Everyone started discussing with each other, and the core of it was that many things in space were not applied to the country. After all, according to the consistent principle, this space belongs to all mankind and does not belong to any country, but everyone He is from Huaxia, so it seems unreasonable not to apply to the higher authorities.

……

At the Space Center of Longling Town, the huge aerospace plane "Hercules 1" rushed into the sky in an instant with roaring sound, and arrived in space in a few minutes.

Its huge belly contains 36 satellites manufactured by Fuyun Group. These 36 satellites are used by Li Fu to build his own global positioning and navigation system.

Generally speaking, it is necessary to accurately locate the ground through satellites in space, and generally at least 3 satellites are required.However, when performing pseudo-range single-point positioning (absolute positioning), since the error of the receiver clock error is included in the pseudo-range measurement observation value of each satellite, the distance measurement observation value is very inaccurate, and the receiver clock error needs to be adjusted As an unknown, it is added to the calculation of pseudo-range single-point positioning and three unknowns of coordinates are added, so at least 4 pseudo-range observations are required, that is, at least 4 positioning satellites need to be observed at the same time to achieve accurate and real-time positioning.

If you want to cover the whole world, you need at least 24 satellites. This number can ensure that at least 4 satellites can be seen at any time in every part of the world. Through 4 equations, you can solve the four variables of space three-dimensional coordinates and time.These 24 satellites are distributed in 6 orbital planes, each orbital plane has 4 satellites, and the receiver of the positioning system adopts passive positioning method (that is, the receiver does not need to send signals).

Uncle Sam's Global Positioning System (GPS system) and Polar Bear's GLONASS system both use 24 satellites for global positioning, but China's Beidou navigation system has 35 satellites. The difference is because the satellites are in space. caused by the difference in height.

Uncle Sam and Polar Bear developed early, so all the good positions were occupied by them. Global positioning and navigation can be achieved using only 24 satellites. China developed later, and there is no good position, so 35 satellites are needed.

Now that Fuyun Group wants to build its own global positioning and navigation system, the location is even worse. Therefore, after careful research and planning, Fuyun Group Research Institute has manufactured 36 satellites to build its own global positioning system. Navigation System.

As soon as the aerospace plane soared into the sky, it entered space after only a few minutes, and began to orbit the earth, adjusting its altitude and orbit, and preparing to launch a satellite.

The traditional method of launching a satellite is to use a carrier rocket to send the satellite launcher into a predetermined orbit before launching it. In this way, the launch of satellites is generally subject to great restrictions.

On the one hand, the carrying capacity of the launch vehicle is limited, and it is impossible to launch a spacecraft with too large a mass. Moreover, a Mars can often only launch one satellite. There are many cases of one rocket with multiple satellites. They are all very small, some of them only weigh a few kilograms, and they don't have much effect in space at all.

On the other hand, because the fuel of the launch vehicle is limited, it is necessary to send the satellite into the predetermined orbit as soon as possible when launching the satellite. Otherwise, once there is a deviation, it will be difficult to adjust it, which means launching s failure.

Therefore, although the global positioning and navigation system can be realized with only 20-30 satellites, there are only Uncle Sam's GPS, polar bear's GLONASS, China's Beidou navigation system, and European Galileo navigation system in the world. No other country has its own GPS navigation system.

One of the most important reasons is because the satellites for positioning and navigation are of high quality and difficult to put into orbit, and ordinary countries simply do not have that much strength to complete them.

Huaxia also established the Beidou navigation system soon after the aerospace plane appeared, because it can be very simple to use the aerospace plane to launch satellites.

The carrying capacity of the aerospace plane is very powerful, and it is calculated in ant. Dozens of satellites can be easily transported to the sky together. The most important thing is that the aerospace plane can easily adjust its altitude and orbit , Send the satellites one by one into the predetermined orbit.

"Didi, with an orbital altitude of 23000 kilometers, has begun to release the first satellite."

Luo Xiaoyao got the order and lightly pressed a button.

Behind the belly of the huge aerospace plane, a huge satellite with a mass of more than 2000 kilograms is slowly pushed out by the booster. As soon as it enters space, the solar panels carried on it will soon and slowly unfold, as if A pair of wings generally begins to orbit the earth.

At the Space Center of Longling Town on the ground, Li Fu and the others seemed a little nervous at this time. The technical content of satellites is not too high. Uncle Sam’s high school students even made satellites and launched them into space. With so many scientists in the group, it is naturally difficult to make satellites.

"Didi, the first satellite was successfully launched and entered the predetermined orbit. It is expected that it will pass over China in 2 minutes."

"Didi, the satellite signal is received, and the signal communication is normal."

Two minutes later, the satellite passed by Huaxia, and the space center successfully received the signal from the satellite. The satellite was working normally and the launch was successful.

"Haha, although it is the first time to manufacture satellites, we are not very good at technology, but we have aerospace planes, so it doesn't matter if we can make satellites bigger."

Li Fu laughed happily at this time. Because it was the first time to manufacture satellites, he had no experience, so the manufacture of satellites was very cumbersome. To scold to death.

Because the greater the mass and volume of a satellite, the higher the requirements for the launch vehicle, the greater the cost of launch, and the higher the possibility of failure. It is not the main factor to consider. If the technology is not good, other aspects can be used to make up for it. It does not matter if the satellite is bigger.

"Begin to adjust the orbit and altitude, and prepare to launch the second satellite."

The aerospace plane continuously adjusts and pushes the satellites in space, and sends the satellites into the predetermined orbit and altitude. As more and more satellites are in space, soon, the space center will start to be able to Perform precise positioning.

“太空之中卫星数量4颗，开始计算目前为止，航天中心位置为东经115°40’、北纬26°20'”

"Boss, the positioning accuracy of our own clairvoyance navigation system is no worse than that of the Beidou navigation system."

Chen Bin looked at the data located by the navigation system, and said to Li Fu excitedly.

"Well, it's okay, how about looking at the pictures taken by the high-definition camera carried on the satellite?"

Li Fu nodded in satisfaction. At this time, on the huge monitor in the center, a map of the earth was being continuously improved. This map was produced by the information collected by his company's clairvoyance navigation system.

The clairvoyance navigation satellite is not only used for navigation, because it is large enough, so it also carries an ultra-high-definition camera.

PS: Ask for tickets, all kinds of requests!

(End of this chapter)