Hand rubbing nuclear fusion live in the wilderness

Chapter 346 Global Communication System
Space Shuttle Zero came down from low-Earth orbit for the second time, and Won spent another two days busy before manufacturing the first 'Satellite Zero'.

The manufactured zero satellite is not big, roughly square above, but this is what it looks like without installing transceiver antennas and solar power panels.

Once these two sets of parts are installed, it will become a phoenix bird after being sent into space and unfolded in an all-round way.

The antenna for sending and receiving signals is like a raised head, and the solar panels are the wings. The blue and white tail flame of the small electromagnetic propulsion engine at the tail is like a bird's tail, which can control its direction.

The first zero satellite was manufactured. After the ground test, the zero space shuttle took it into the sky and hovered at about [-] kilometers.

At this location, Satellite Zero will initially complete its communications tests.

Although the solar panels are not unfolded and cannot provide electricity, this problem can be solved by the space shuttle. It only needs to load an additional group transformer and a group of wires.

In fact, before the space shuttle went to space, Won had already adjusted all this and activated the communication components on the satellite.

The wireless communicator on the ground and the communication components on the satellite have always been connected after they were started, even as the space shuttle climbed, the communication has not been interrupted.

A steady stream of signal waves are emitted from the signal tower on the ground, received by the satellite at the bottom of the space shuttle, and then transferred to another signal receiving terminal through the satellite.

This is the advantage of low-orbit satellite communication, because it is very close to the ground, the satellite orbit is low, and the delay of signal propagation is very short.

The short communication delay not only reduces the loss of the signal link, but also reduces the requirements for satellites and user terminals. Micro/small satellites and handheld user terminals are used as repeaters.

But there are advantages and disadvantages.

Due to the low orbit of low-orbit satellites, each satellite can cover a relatively small area, and dozens of satellites are needed to form a global system.

Especially for his kind, using an ultra-low low-earth orbit of 160 kilometers, the range that satellites can cover is even smaller.

As a result, more satellites are required for global coverage.

The Korean won has calculated that according to the orbital altitude of 160 kilometers, coupled with the fast movement of low-orbit satellites and frequent switching between carriers, at least 140 satellites are needed to achieve global real-time coverage and communication.

In addition, the operation of low-orbit satellites requires more frequent orbit changes and stronger computer performance for support.

At this point, Won is going to hand it over to the central computer in the Taishan base for management for the time being.

The integrated chip computer developed by himself is still unable to control hundreds of satellites and calculate the program of orbit adjustment altitude status.

Of course, if the orbit climbs, the number of satellites needed can be reduced a lot.

For example, when climbing to [-] kilometers, the number of satellites needed to cover the whole world will be reduced to about [-].

Further up, to a height of [-] kilometers, if the number required does not cover the North and South Poles, it can be reduced to about fifty.

Qualcomm and Laura in the United States have jointly developed a satellite system called "Global Star System" near this altitude.

48 satellites are used without covering north and south pole communications.

If you go up and climb all the way to geosynchronous geostationary orbit, then in theory, global coverage can be achieved with three satellites.

But that altitude is too high, a full [-] kilometers from the ground.

It is very difficult for him to launch the satellite to that height.

The most critical thing is the control and communication delay of satellite communication, which is the most pitiful place.

The two-way transmission delay of geosynchronous orbit satellites can reach the second level, and when used for voice services, long-distance command, etc., there will be very obvious interruptions.

This level of delay is a fatal shortcoming for him, who is alone, to manipulate other things through satellite signal jumps.

Although he has a lot of black technology in his hands, the highest-level knowledge information he has obtained so far is only intermediate-level information.

And it is not for wireless communication, so it can only be compensated by low-orbit coverage satellites.

After all, wireless signal communication uses electromagnetic waves, and the propagation speed of electromagnetic waves is fixed, which is a physical limit.

Unless algorithms are used to make up for it, or other means of communication, such as quantum communication, are used, there is no solution to this problem for the time being.

Two hours passed, and the zero space shuttle carried the zero satellite and stayed steadily at an altitude of [-] kilometers.

The signal emitted from the signal tower was transmitted back to the ground at the speed of light, and was received by multiple signal receiving equipment placed in different positions.

This is one of the advantages of satellite communication.

It can be one-to-many, as long as you design this function, it can be realized.

In this way, the South Korean won can control bases in other places by sitting on the base of the Amazon rainforest.

The satellite was launched, there was no problem with the communication, and there were not too many tests that could be done.

For this ultra-long-distance satellite communication test, most of the won was handed over to the functional chip for automatic processing.

There are mainly four steps, first load the pre-stored test instructions; then return the parameter information, and he will perform a certain level of optimization on the ground.

The third step is to return the parameters to the satellite, and then execute the test command after the first processing.

The fourth step is to post-process the executed state parameters according to the test instructions.

This is a set of standard process templates.

It belongs to the primary aerospace application knowledge information, and it has excellent applicability and versatility.

Provides an open and clearly defined command sending terminal for satellite automated testing.

The same communication satellite, after the first satellite completes such a parameter test, can be used directly with only a few adjustments in the follow-up.

After all, when a civilization develops into the space stage or the parent galaxy stage, the number of satellites thrown into the sky every year is not a small number.

As far as the current human civilization sends thousands of satellites every year, it is simply a drop in the bucket for a mother galaxy or even an Earth-Moon civilization.

Although human beings have never stopped exploring space, the efforts are too small.

From the knowledge and information transmitted by the system, Han Yuan can clearly understand that countries in the real world spend too much time in internal fighting and under their feet.

Looking up at the boundless sea of ​​stars, there are endless roads.

Human beings are not alone in the universe, and the earth is not the only cradle of life. Although space is desolate, it is too big and hides endless possibilities.

Human beings should set their eyes on the vast and boundless universe, instead of sitting at the table full of Han people and fighting for the poor food on the earth.

Just like in the ancient times of Huaguo, when they fought back and forth, they always focused their attention on the piece of land under their feet, without thinking about the vast overseas and even wider land.

The same is true for human beings today, fighting back and forth for the oil resources and mineral real estate on the earth.

However, just above the head, even if it is an ordinary meteorite or asteroid, the resources contained in it may be an astronomical figure.

Those ordinary resources are not very meaningful to a civilization that has stepped out of its home planet.

The solar system contains enough natural resources for human beings to use for millions or even tens of millions of years.

As long as you leave the parent star, there are too many resources that can be used.

Thinking of this, Han Yuan looked away from the display screen and touched his stomach.

From the satellite launch to the signal test, almost a day has passed, and he hasn't eaten yet, and his poor stomach is already growling with hunger.

"Just bear with it for a while, and I'll download it sooner and get some delicious food."

Han Yuan sighed, touched his empty stomach again, grabbed the water glass on the table and took a big gulp of plain water.

Turning his head and returning his attention to the console, the satellite has been tested, the first step of the preset command has been completed, and the information parameters have been returned.

Call out the returned information parameters, and Won checks carefully.

"Information delay parameter: 27 milliseconds."

"Complete rate of information packet delivery: 90.00% nine point ninety-seven."

"Signal strength loss: [-]."

"."

A series of parameters were reflected in Han Yuan's eyes, and then entered into the brain. The extremely active brain cells quickly compared and analyzed these parameters automatically.

In more than half an hour, Won has sorted out the parameter information passed back and optimized it.

There will still be losses in transmitting electromagnetic wave signals at an altitude of [-] kilometers.

Electromagnetic waves are not omnipotent. Although the speed of transmitting information is the same as the speed of light, the position of the satellite is after all close to the warm layer, and there is a dense atmosphere underneath.

Dark clouds, dust, etc. will absorb part of the electromagnetic wave signal.

If it is rainy or the weather is bad, the signal loss rate will be much higher.

However, the electromagnetic wave signal transmitter used by South Korean Won is a high-power one, and the loss of various signals is not worth mentioning in front of this kind of signal transmitter.

In addition to this, he also deployed a special signal relay booster on the satellite.

This is for precautionary measures.

If there is any accident, such as a typhoon, these may cause the satellite to lose contact with the ground.

When this happens, both the satellite and the ground base station will activate the signal booster, so as to force through the storm with a stronger signal to contact each other.

This kind of signal booster is actually not enough in quality, so the quantity is enough.

It uses a bigger, stronger, and higher frequency method to send breakpoints by carrying complete data information in each segment of the radio wave.

Of course, this signal booster also has limitations. If there is a super typhoon above level [-] or [-], it will still misfire.

There is no way, if the typhoon is so strong that even every signal is blocked, no matter how you adjust it, it will be useless.

The signal can't be transmitted, contact a testicle.

For this situation, not to mention the current Korean won, even countries around the world have no good solutions.

It is no exaggeration to say that if a typhoon of magnitude [-] or [-] lands, the destructive power it will cause will be extremely terrifying.

In the 5000th century, typhoon 'Vera' of magnitude 4 landed in the island country at the end of September, killing more than [-] people and injuring more than [-].

It can be said that it is no less than a small-yield nuclear weapon.

However, a typhoon of this level is rare once in ten years, and basically occurs in the vast and boundless Pacific Ocean.

After the satellite monitors a typhoon of this level, it will give an early warning, and there will be no ships and planes going there, so naturally it will not cause any impact.

In view of the completion of the inspection of various information parameters transmitted by the satellite, Han Yuan quickly made some minor adjustments, and then transmitted the processed parameters back to the zero satellite.

Satellite Zero, which received the new parameter information, quickly sorted out these signals with the support of functional chips and supporting equipment, divided them into several parts and sent them back to the ground for processing.

At this point, as long as the signal receiving devices deployed in various places can receive the branch signals normally, the signal test for the satellite will almost come to an end temporarily.

The remaining tasks such as satellite orbit change, launch, and solar panel deployment need to be processed after the satellite is thrown into low-earth orbit.

But today is definitely too late.

It was already evening, and unlike the launch vehicle, the zero space shuttle could be launched day and night.

Its heaven can only be carried out during the day when the weather is good, because sufficient light is needed to provide sufficient power.

There are advantages and disadvantages, and there is no such thing as perfect.

Satellite calling is fine, it can connect you with your family in every corner of the earth and even the north and south poles without dead ends, but the high cost and the delay of a few seconds can also make you extremely melancholy.

Nuclear fusion reactor Well, it can provide sufficient energy, but there is also a risk of explosion, and a careless one can blow up the entire power plant to the sky.

But isn't that how technology develops?

From cumbersome to simple, from expensive to cheap, each technology has various shortcomings when it comes out, but a solution can always be found.

The satellite's secondary command execution and information return are very fast, but it is very slow for Korean won to check one by one.

When the sun was about to set, Han Yuan finally took back all the signal receivers deployed around the base.

The functions of these things are still very single, only a set of antennas and batteries, and a set of memory for receiving and storing signals, and it is not yet possible to send the signals back wirelessly.

So the Korean won and the chimpanzees ran one by one and picked it up.

At an altitude of [-] kilometers, the ground area that the zero satellite can cover is not small.

In order to maximize the limit test before, South Korea scattered the equipment used to receive signals on the ground in all directions.

Some signal receivers are even hundreds of kilometers away from the base.

The deployment of these signal receivers uses aircraft, and the long-distance signal inspection can only wait until tomorrow.

However, for the signal receivers that have been recovered, South Korean won took out the memory one by one, inserted them into the specially customized interface, and copied and read the data.

Tonight, he only did a few random checks, and after getting a general understanding of the situation, he didn't do any more.

I've been hungry all day, let's have a meal first, and then take a good rest.

(End of this chapter)