Chapter 246: Near Space Communication Station

Li Hao stood in the courtyard of the smart factory and watched them make another large transparent balloon made of plastic.
Today is June 22 and it is very sunny. He did not expect that in just three days, Guo Jianguo and Yuan Dingfang led the cooperation of scientific researchers and engineers.
The prototype of what he called the brief near-space laser communicator has been completed. It is now officially ready to start the first experiment.
Zhou Yunsheng, who was accompanying Li Hao, looked at the big balloon and asked inexplicably: "Why do you need to send the communication equipment to the adjacent space over 80 kilometers. I think the big balloon can be at an altitude of more than ten kilometers."
"Of course we designed this height for his own reasons. This is the optimal height after many calculations.
The space of about 20,000 meters is the altitude at which civil aviation aircraft mainly fly. There are also aircraft flying frequently in the space below 20,000 meters. Especially low-altitude drones are very popular.
The main purpose of a laser communicator is to perform confidential communications. Everything is designed to serve for better communication.
If deployed in low altitude, it will be blocked by various interference in low altitude.
Arranged in the lower level to enter the space, it will also be disturbed by factors such as atmospheric airflow.
This can cause the instrument to go down and it is difficult to repair the machine at high altitude. "
"Our company's communications really reach such a severe level. I think that even a large state-owned enterprise and the military have not engaged in this type of communication." Zhou Yunsheng looked at the big balloon and said in doubt.
On the side of the Gundam, hearing about the question from Zhou Yunsheng, he explained, "Zhou, our company's heritage is still insufficient, and it can't be compared with those big companies.
We use the public network for data transmission. And those large state-owned enterprises, such as aerospace technology group, northern industry group.
There is a dedicated line for communication between them. Information will never be easily stolen by outsiders.
Not to mention military communications, this communication is ensured in a number of ways. Even quantum communication, which is now underway, has been put to trial. "
"I just know the basics." Zhou Yunsheng turned to Li Hao and asked, "Laser communication is greatly affected by the weather environment. How do we communicate in extreme weather."
Li Hao said confidently, "Our laser communicator, it blocks a special reaction film in front of the conventional laser transmitter.
It can change the properties of the emitted laser, especially its strong penetrability and very little signal attenuation. Normal rainy weather will not affect its communication function.
There is extreme weather, such as typhoons and other weather. Normal communication will also be affected. But its impact has been minimal. Besides, we have a meteorological instrument. If we really encounter special weather, the meteorological instrument will also play its due role. "
They looked like a big balloon being installed by the engineers ahead. This is an approximately spherical shape with a diameter of about ten meters.
It's slightly larger in the upper part and gradually narrows in the lower part. The volume is about 550 cubic meters.
The entire sphere is composed of 88 petals of metamaterial organic plastic. This organic plastic is only 30 microns thick, but it can withstand 1550 Pa atmospheric pressure.
Metamaterials are different from ordinary materials and are a material discipline that has grown in recent years.
It is the known structure of materials in nature. Arranged by scientists according to certain rules. After hundreds of millions of attempts, it was reassembled into different materials.
This material does not exist at all in nature, but it has very special capabilities.
It's like organic plastic that's assembling this big balloon. It is very thin and light and weighs only 67 kg.
After Guo Jianzhen assembled the big balloon, he immediately began to instruct the scientific researchers to carry out the pressure test.
As the pump continues to inflate into the big balloon. It started to bulge.
There are scientific researchers on the side constantly recording data.
"The air pressure is 50 Pa and the material is normal."
"The air pressure is 250 Pa and the material is normal."
Researchers kept experimenting, and soon reached the critical value of 1550 Pa for material design.
"The air pressure is 1558 Pa and the material is normal."
After Guo Jianying heard that, he commanded: "Pressure is now stopped, and the equipment operation is monitored at all times."
Guo Jianzhen went to Li Hao and said, "This critical space vehicle seems to be basically successful now. It now perfectly meets the design requirements.
We started flying near space vehicles after Manager Yuan Dingfang was ready to play the hanging warehouse. "
After Guo Jianzheng said, he asked Zhou Yunsheng: "General Manager Zhou, do you say hello to the relevant departments. There are extremely busy international civil aviation routes around Yanjing.
If we fly near space vehicles, it will not be good for the aircraft. "
"I have already said hello to the relevant departments. As long as you are near the spacecraft, you only need to take off at the prescribed time in accordance with the predetermined requirements. There is absolutely no problem." Zhou Yunsheng answered his question.
Yuan Dingfang also came over and said to them, "The equipment is ready to be completed. It has eight laser transmitters and eight laser receivers."
Li Hao saw that they were all ready to complete. This time was exactly the window time given.
"Take off now and see if this near-space communication station we designed can function properly."
When Yuan Dingfang heard Li Hao's orders, he began to let engineers start the near space vehicle.
Only the machine inside the aircraft was seen controlling its air pressure. Seems slow, but extremely quickly began to fly into the sky.
There is a rotating propeller under the big balloon, which is mainly responsible for controlling its direction. At the bottom is a hanging warehouse, which is the laser communicator.
Looking at the near space vehicles, they became smaller and disappeared from their eyes. They all enter the control center inside the smart factory.
The control center installed here mainly serves future scientific research buildings. Their internal communication is done using a fiber optic network.
The local area network built by themselves, relying on their company's security measures, does not worry about communication leaks.
Li Hao can clearly see from the control center screen that the adjacent spacecraft is slowly moving upwards.
They waited for a long time. The UU reading book www.uukanshu.com near spacecraft quickly came to the sky above 80 kilometers, hovering there steadily.
After the engineer saw the approaching spacecraft stable. He immediately transmitted a set of data and relayed it through a nearby space communication station.
Soon this set of data was passed to the clear porcelain technology headquarters located in the center of Yanjing.
After several rounds of communication, the laser communicator proved to be very stable.
After seeing this situation, Li Hao breathed a sigh of relief and said, "We succeeded. In the future, our company's communications in Yanjing will be relayed to the nearby space communication station to prevent people from stealing secrets.
After the implementation of our satellite program, we can set up our own satellite communication network. "
After everyone heard the news of success, they all applauded warmly. Everyone at the scene knew how good the security of communications could be.
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