I have a little black hole

Because the moon has no atmosphere, you cannot use a parachute to slow down. You can only use a variable thrust engine to lower the speed while landing. The difference between the landing of the Chang'e 3 and the four good probes is that the infinite gravity group's ``Moon Palace Exploration'' Pathfinder's No. 1 probe landing is heavier!

This makes the landing of the'Moon Palace Pathfinder' No. 1 detector more stringent on the performance of variable thrust engines, not only requiring greater thrust, but also requiring higher accuracy of the engine's thrust changes!

Of course, it does not mean that a good variable thrust engine can guarantee the smooth landing of the detector. This is a very systematic project and involves a lot of technology.

The process of detecting the power drop of the detector is a process with a short time and a great speed change, which cannot be controlled by the ground in real time.In response to this, Infinite Gravity Group, with the help of the National Chang'e Engineering and Technology Team, designed and customized a special guidance, navigation and control system.

This guidance, navigation and control has been designed with a special sensor to perform monthly speed measurement, ranging and terrain identification, to ensure that the detector autonomously guides, navigates and controls the landing section.

The equipment used in this system includes, for example, autonomous navigation inertial measurement unit (IMU), laser ranging sensor, microwave ranging sensor, microwave speed sensor, optical imaging sensor, laser three-dimensional imaging sensor, image data processing Computer, horizontal mobile thruster, etc.

The most important thing is to design a special obstacle avoidance program for this system, which includes approaching section, hovering section, obstacle avoiding section and slow down section.

With the help of four moon-orbiting orbiting satellites named "Four Leaf" by female scientists in the deep space laboratory, Infinite Gravity Group not only digested and absorbed the detailed moon exploration data of the moon brought by the National Chang'e Project , And further verified these data with our company's more advanced sounding satellites.

The development team fully considered the impact of lunar soil physical and mechanical properties on landing impact and stability, as well as the physical and chemical characteristics of moon dust. Using special materials, designs and processes, a new landing buffer system was developed to solve the above problems and ensure the detector. During the soft landing process, it does not fall over or fall within a certain attitude range, and provides firm support for the detector's work.

Scientific research can't be tolerated at all. Even if everyone knows that the data provided by the national lunar exploration project will not have any major problems, but the data given by others is different from the data detected by themselves, the company's team of scientists still believes in themselves. The detected data!

Regarding this point, the experts sent by the National Lunar Exploration Project to the company to carry out cooperative research are not only angry, but are particularly pleased and supportive, and also praise the infinite gravity group’s scientific research to make progress in such a short time is not unreasonable of.

Of course, I am more envious of the wealthy appearance of Infinite Gravity Group. In order to save the time of data detection, four "four-leaf grass" orbiting moon exploration satellites were launched at once, and the detection data hula la It is said that a lot of data is not even mastered by them. After all, the detection satellite technology of Infinite Gravity Group is much higher than the detection satellite they launched before.

This is also an important reason why the National Lunar Exploration Project is willing to cooperate more fully with the Infinite Gravity Group. The scale of investment and technology conversion speed of the Infinite Gravity Group is too fast. It is not the first time to send charcoal in the snow. It's different.

With sufficient data support, the technical advantages of Infinite Gravity Group were immediately displayed. The simulated landing test of the artificial intelligence system allowed the protest team to clearly grasp all possible accidents during the descent and to take these possible accidents into account. The situation is pre-set in the control system to ensure that no accidents will occur during the entire landing process of the lander.

When the live picture of the surveillance camera that comes with the detector of No. 1 Moon Palace Pathfinder is connected to the live connection, everyone knows that the most important moment is coming!

"Switch to the autonomous landing system!" With the order of the commander, the landing officially began!

The entire "Moon Palace Pathfinder" No. 1 probe board began to enter the set landing program, and then began to change the ignition of the engine under the autonomous control of the program!

In order to control the descending process of the detector more accurately, the number of variable thrust engines is subdivided into 12 engines, 8 of which are distributed in 4 diagonal attitude control engines, and the rest are at the bottom The main engine is now. The number of it is four. The reason why there are so many is mainly because the weight of the'Moon Palace Pathfinder' No. 1 detector is too heavy!

Of course, even if it is so heavy, with Infinite Gravity Group’s engine technology, two main engines are enough, but if one engine or two engines are used, the engine will fail during the landing process. , Then its landing will fail, which represents the failure of the launch mission.

Because the super-precision and super-powerful functions of the variable thrust engine allow it to only accurately execute a high-precision variable speed descent task, if it fails or is used again, some precision parts need to be replaced, but we Everyone knows that there is no way to perform such operations on the moon as far away as 380,000 kilometers away.

Therefore, the deep space laboratory team who carried out the moon exploration mission for the first time deeply understood the boss’s frustrating design about the detector backup system, and designed two backup engines for the main landing engine, because of the company’s giant The carrying capacity of the recyclable rocket type "God 2" allows them to have sufficient design margin!

Of course, it does not mean that the design of these two spare engines is completely useless. After all the detection tasks of the detector are completed, it is just possible to use these two engines to conduct an experiment, that is, the detector is on the surface of the moon. Lift-off test, technical verification for the next detector recovery task!

After all, like the national lunar exploration project, the third step of Infinite Gravity Group's initial lunar exploration program is also to carry out the recovery operation of the detector, and such technical verification is also required.

At this time, two of the variable thrust engines at the bottom of the screen began to emit blue flames. The landing procedure began to make the detector decelerate at the predetermined landing point that was already explored. The eight attitude adjustment engines also began to Under the control of the program, perform spot spray to adjust the attitude of the detector and aim at the landing point!