Nie Changfeng hits the laser transmitter control panel and edits the information, then starts the communication laser to launch a communication laser to Qinghai.
Soon Qinghai received a communication laser signal.
The communication experimental cabin continuously emits communication laser to the ground, while Qinghai, Changbai Mountain and Wuyishan on the ground also emit communication laser.
Nie Changfeng started the camera of the experimental cabin and tried to synchronize his own picture to the ground.
In a short time, the screen of the other party appeared on the monitors of both parties. Although the delay was about 5 seconds, the sum of communication information reached 96GB and 92GB per second respectively, which is a considerable communication density.
Of course, laser communication has many limitations, such as the need for special equipment, which is vulnerable to the weather and must be aimed before communication can be carried out.
It’s too rough outside, and it’s just so-so
If you want to go to the civilian market, such as the Musk Star Chain Project, you can give it to ships, human areas and communication facilities at most.
INTECOM is facing a huge problem, that is, the total amount of communication.
The so-called speed of 92~96G per second is actually the speed of a laser to a communication device. What if there is one person at the same time? Or hundreds of people at the same time?
The larger the number of people, the smaller the personal communication speed will be before the total amount of communication remains unchanged.
One person is about 9M per second.
One person has about 9M left per second.
One person …
By analogy, the more people are assigned to the communication speed, the less communication speed, and the laser communication must be positioned and oriented, and it is impossible to imagine the communication quality in a small area.
The satellite chain plans to launch 420,000 satellites, and the total traffic (that is, bandwidth) is about 40,000 GB per second. If the personal communication speed of 5MB per second is to be maintained, the limit is 10 million.
If you want to maintain the personal communication speed of 1M per second, the star link communication system can allow up to 4 million simultaneous networks.
What’s more, 420,000 satellites are placed in low-earth orbit for communication, which is simply disastrous. Because these satellites have limited service life, they must be replenished frequently. Abandoned satellites will become dense garbage, making it more difficult for human beings to explore the outer space.
The star chain project is not like a communication system, but more like a weapon system.
At present, the purpose of Tiangong experimental laser communication is to study the high-quality laser communication satellite and spacecraft outer space communication.
Nie Changfeng communicated with three lasers on the ground for more than 20 minutes, and the communication was interrupted due to orbital bypass.
The outer space laser communication system can only be realized by adopting multi-point arrangement to ensure continuous communication.
Tiangong Laser Communication Laboratory can conduct communication experiments with the ground for the time being without his auxiliary communication satellite.
After completing this laser communication experiment, Nie Changfeng did not leave, but turned around and entered the second half of the laser communication laboratory.
A high-energy laser transmitter was installed here. He adjusted his direction and locked a piece of garbage 324 kilometers away through Beidou satellite and high-scoring satellite.
It’s an abandoned solar pool board with a length of 4 meters and a width of about 2 meters.
Carefully manipulate the laser positioning system and high-scoring satellite to assist Nie Changfeng to press the laser launch button.
A high-energy laser that can’t be seen by the naked eye explodes out of the laser, and the reaction generated by the laser emitted by the laser slightly pushes the Tiangong to deviate by several centimeters.
Laser instantaneous irradiation of the abandoned solar panel The temperature of the solar panel rises rapidly and falls in the direction of the atmosphere.
[Alarm! Target has shifted! ］
Nie Changfeng immediately turned off the laser to observe the movement of the abandoned solar panel.
The solar panel near 37 kilometers to float near the low earth orbit was hit by a laser and then fell rapidly.
After observing for a while, Nie Changfeng started the laser again to give the solar panel a new acceleration.
After seven consecutive exposures, the orbital height of this piece of garbage has dropped to about 157 kilometers.
At this time, there is no need to irradiate again, because the gravity of the planet will soon pull the atmosphere and then burn it in the atmosphere.
And NASA’s junk monitoring system also found this piece of junk. Whether it is sudden warming or strange acceleration indicates that someone is manipulating this piece of junk.
Although they can lock in which spacecraft emits laser, there are only four forces in Taitai that have the ability to do this.
Chapter four hundred and twelve Monster
When NASA urgently investigate that "abnormal fall of too much garbage"
The Dalian Shipyard of CSIC welcomed a special guest, and a multi-legged robot security guard escorted it here.
And the head of CSIC Dalian Shipyard, a project chief engineer, is accompanying the multi-legged robot shipyard department.
Wang Ming, the chief engineer of the project, excitedly introduced to the multi-legged robot, "Mr. Huang, this is the Feipeng level you designed."
Through the multi-legged robot monitoring camera and microphone, he clearly saw that the machine in the machine dock looked very strange.
It’s kind of like a catamaran and a catamaran.
In fact, this thing is a ground effect aircraft or hydrofoil. This ground effect aircraft is very huge, with an overall weight of 3,561 tons, which can be close to the sea surface at a height of 4-6 meters, and the fastest flight speed can reach 54 kilometers per hour.
It is seven times larger than Ekranoplan in Chile and its payload reaches 22 tons, making it the heaviest aircraft in history.
Feipeng has overcome many difficulties and responded to many new technologies and materials to reduce the body weight and increase the strength of the body by an order of magnitude.
The catamaran design enhances stability and wave resistance.
At the same time, the Feipeng class is also equipped with four oblique detonation rocket engines, so that the output power of N2 high-energy fuel is 3%, and the cruising flight altitude is 5 meters and the speed is 4 kilometers per hour.
When the output power rises to 45%, the flying height is about 64 meters and the speed can soar to 54 kilometers per hour.
[Received from Qinghai]
