Most young people like to visit Bilibili to watch videos of various UP owners, but most people do it for entertainment, and not many people specifically watch the technology section.

However, there is such a master in the technology section of Station B. The technology videos he produced attracted many professionals and non-professionals to watch, and left a lot of envy and admiration in the videos. The barrage with shock and other tones became popular in the technology section of Station B. His name is Zhihui Jun.

Although Zhihuijun (real name is Peng Zhihui) is just a young man, he is a well-established boss in the industry. He is known as "Stack Overflow Engineer" and "Wild Iron Man" at Station B. .

He graduated from the University of Electronic Science and Technology of China and worked as an AI architect after graduation. Later, he received an offer from Huawei's Genius Youth Program, and finally joined Huawei and was selected as a Huawei Genius Youth.

On Station B, he has released a lot of videos that can be called a dimensionality reduction attack for ordinary people, such as the minist Linux computer he made on the Internet.

You can pick up this computer with only two fingers, and this mini computer has all the functions that a normal computer should have.

Before production, you need to draw a draft by hand

Then draw and complete the circuit chip in professional software

After that, develop the software from the bottom, including uboot/ Kernel configuration, device driver, application layer App development, algorithm model deployment, etc.

In the end, this mini Linux computer was completed. Every step was completed by Zhihui Jun alone. This was a quite difficult project.

In addition to this project, there is also an awesome self-driving bicycle design.

This bicycle can drive smoothly, turn automatically, avoid obstacles, and complete some difficult actions. This project is called "XUAN" by Zhihui Jun.

When designing, Zhihui Jun chose the "dead fly" that is most loved by drift players. It is not only convenient for drifting, but the key is that it has no brakes and the structure is relatively simple.

First, he used software to model. After the model came out, he began to carry out hardware modification, intelligent design, and development of sensing and control algorithms.

When designing an autonomous bicycle, there are many problems to face. The first is the problem of balance. Zhihui Jun used the principle of angular momentum balance to install a brushless motor under the seat.

As an intelligent bicycle, it needs to be equipped with a "brain" and a "cerebellum". The cerebellum of the bicycle is ESP32, which is a single-chip microcomputer controller that is characterized by low consumption and low cost. Based on FreeRTOS (an open source embedded real-time operating system), Zhihuijun built the Cerebellum's RPC communication framework to implement sensor data processing and motor control algorithms.

Its brain is the edge computing chip. Zhihui Jun chose the Ascend 310, which can provide up to 22TOPs of computing power.

In addition, many sensors have been added to this bicycle, such as lidar, depth cameras, etc., which allow it to avoid obstacles, even identify terrain, and automatically plan paths.

If you want a bicycle to drive successfully, you need to install a "heart" on it. The Ctrl-FOC vector control driver is used here, which is also one of Zhihui Jun's previous projects.

The last step is "parameter adjustment". If you want this bicycle to drive stably, there are more than fifty important parameters, such as the power of the motor, the distribution of the center of gravity, the control period, the feedback matrix, and the PID gain. , filter cutoff frequency, etc.

After reading it, many people said that they can only be a melon-eater. For an engineering student, this set of procedures is undoubtedly a dose of graduation defense. Even so, it is not ordinary. Engineering students can complete it independently. For non-science and engineering students, seeing this project is like reading a book from heaven.

The reason why Mr. Zhihui had such an idea was just because he fell while riding a bicycle not long ago, and then driven by various thoughts, he was prompted to complete this project. It can be seen that the separation of technology and technology We live very close together.

There are many treasure UP masters like Zhihui Jun in Station B. In our lives, there are also many such talents. Someone needs to continue to discover them. Our country does not lack talents. Our young people also have great potential.

Moreover, "Zhihui Jun" is only one of the personnel of Huawei's Genius Youth Program. Every Huawei Genius Youth is a technology expert with unlimited potential!

Young geniuses also deserve annual salaries ranging from 1 million to 3 million!

However, in recent years, the phenomenon of brain drain abroad has been very serious. This makes us reflect on the brain drain abroad. They have made breakthroughs in the field of science and technology, and then those countries use these technologies to choke us. , this is a kind of sadness.

Currently we need to think about how to retain our young people and retain our talents.

When young people are strong, China will be strong

I believe that the country’s most valuable assets, led by Huawei, can gather our talents and realize the great rejuvenation of our country.