Technology: breaking the hegemony that monopolizes the world

Faced with the turbulent public outrage from the outside world, SpaceX issued an announcement.

【… Except for the satellites, astronomical equipment and other aircraft currently in service, and the atmosphere of the blue star, it is actually covered with dense space junk.

Some of our company's decommissioned satellites fell into the blue star, and most of them will burn up in the atmosphere, and only a small amount of debris may "land".

Considering that Blue Star is mainly covered by water and uninhabited land, users don't have to worry about the bad effects of these wrecks.

Our company will always provide users with stable, efficient and safe satellite communication services. These satellites are already in the decommissioning plan, which is in line with the end-of-life time limit predicted by scientists and engineers. 】

At the same time, SpaceX also gave the probability of a satellite hitting a person, which is about 1/2467.

And at this time, a Daxia netizen suddenly mentioned Daxia's Beidou satellite...

The Beidou global satellite navigation system is one of the most dazzling achievements of Daxia Aerospace.

The global satellite navigation system independently constructed and operated by Daxia has played an irreplaceable role in maintaining data security and serving economic and social development. From the official start in 994 of the Xiayin star calendar to the full completion of the Xiayin star calendar in 1020, it took 26 years, and a total of 44 launch missions were organized, with a mission success rate of 100%.

Of course, Aite Beidou is not "reflecting on himself", but reminding his family.

"@北斗, be careful that our orbiting satellite was smashed by other unknown objects, it was caused by our tax revenue!"

"@北斗, GPS and Starlink are so behind, when shall we go abroad?"

"@北斗, be wary of SpaceX playing the same card!"

And Beidou officials hurriedly asked their superiors for instructions after seeing such dense Aites and messages.

Then he gave a stable panda emoticon package, and wrote with the picture: "Our Beidou system has multiple security protections. In addition to our own security protection system, there is also the latest security protection technology developed by Yunzhong Jiulong Big Data Company. Now Beidou satellites have new models equipped with carbon-based chips, and use the latest attitude engine, which can completely protect safety in space.

Thank you for your concern! "

After Beidou, Kyushu Aerospace's account was also blocked by Crazy Aite, and the barrage in the live broadcast room was even more frenzied.

"Hold the grass? In a blink of an eye, all the out-of-control satellites fell, and I dare not talk about these coincidences outside!"

"It's too rigid. SpaceX said on the front foot that their Starlink satellite was out of control, and the back foot completely lost control and crashed."

"Oops, oops, I see that the military industry stocks are starting to rise. The military industry stocks of our Daxia are rising, and the military industry stocks of Uncle Sam are also rising! Mr. Gu, come out and talk! I should Buy compressed biscuits, or buy self-heating rice? Or buy some emergency kits from your company?"

"The chief engineer had a serious face just now. He didn't look like a scientific researcher, but he looked like a general! With a wave of his sleeves, twenty-four Starlink satellites crashed in Yingsheng. It was terrifying..."

"Family! Don't hit the barrage, look at the compressed biscuits and canned food on Taobei, the prices are going up like crazy! A can of beef costs more than 100 yuan! A pack of compressed biscuits costs 50 yuan!"

"Woooooo... I'm only twenty years old, I don't even have a girlfriend, and I've never held hands with a girl in my life. If you have a female friend with the same difficulty, you can add me as a friend..."

"Is the director here? Hurry up and invite Mr. Gu to the front of the camera! I can't see Mr. Gu, so I'm scared! Tell him to write a letter of guarantee! Otherwise, I'll tear up my homework!!!"

Generally speaking, for each launch mission, in the measurement and control command hall on the first floor below the Southwest Launch Command Center of Kyushu Science and Technology, there will be a flight control team and technicians from the satellite development department to jointly carry out the measurement and control tasks in order to better grasp the relevant information of the satellite. situation and status.

However, since Kyushu Science and Technology has already deployed the Zhoutian Xingdou project in the sky, and the time interval for this manned space mission is very urgent, the previous flight control team was divided into two, and the first team worked overtime to perform the task normally.

The second team, after undergoing special training, has mastered the skills of how to control the satellite in a critical moment of sudden satellite failure.

At this time, facing the dangerous situation where the satellite interference torque data continues to increase on the large screen above the command center, the ground flight controller of Kyushu Science and Technology decided to set a critical parameter for the satellite after research and judgment. If the value exceeds this value, an instruction will be sent immediately to shut down the main engine of the satellite urgently to ensure the safety of the satellite.

The captain of the second team shouted loudly on the team's voice channel at this time: "Don't hurt any neighboring units! If the attitude variation parameters of these satellites exceed this critical point, they are likely to lose contact and lose control. If we haven’t shut down the main engine before then, the satellite will no longer be able to accept the command to shut down, and we don’t know what state the satellite is in or where it flies to!”

The team members also looked serious, controlling the equipment in their hands solemnly.

Because when only the main engine is working in the power system of the satellite, the attitude of the satellite can only be stabilized for a short time, and once an accident occurs, the satellite will lose the opportunity to change its attitude and be directly crashed by other flying objects.

This was a failure that everyone in the second team could not accept.

Finally, three minutes after the data of the last six satellite attitudes changed, the parameters of the variation reached a critical point, and the personnel of the second flight control team of the Southwest Launch Command Center of Kyushu Science and Technology urgently sent instructions to implement, and the satellite attitude engine reversed. , the main engine of the satellite is shut down, and the power supply is completely disconnected.

When the six satellites were all powered off and disconnected from the internet, the large screen in the command center quickly showed that the satellites' attitude changes gradually increased. go.

It's just that the drunks fall only from a height of more than one meter, but these satellites are thousands of miles away.

"From the research and judgment of the satellite's problem, formulate and implement the disposal method to ensure that the satellite is completely out of control and complete the final control. At present, 24 satellites have been completely destroyed."

"Received on the 1st, received on the 1st, please pay attention to the mission panel and access channels, the relevant files will be transmitted again in ten minutes, please pay attention, please pay attention."

"Shenying of the second flight control team received it, Shenying of the second flight control team received it. The status of the players is being adjusted, the status of the players is being adjusted, please rest assured on the first, please rest assured on the first."

In the voice channel, every sentence is so calm and flat, neither urgent nor urgent.