In the process, he also learned a lot of electronic components, such as diodes, resistors, capacitors, electric fluxes, etc., which he had also learned in some books before, but he had not come into contact with real objects. As for what these components were used for, he still didn't know anything.

After a while, Li Shan had already removed several circuit boards. Just when he was a little proud of his achievements, Tang Xing came over and took a look, snorted coldly in his nose and said: "If we all work like you, tomorrow we will all have to drink the northwest wind, you take down all this garbage and put it here indiscriminately, this kind of work is better than pulling a random person from the outside to do it, so what's the use of you?" After speaking, he carried a small box and turned around and walked out of the house.

His words made Li Shan a little confused, and when he was a little dazed, Liu Lu came over.

"Xiao Li, some electronic components on these circuit boards are scrapped, so they need to be tested, maybe you don't know very well, but you will know later. He patiently explained to Li Shan.

It turns out that this is the case, I am fast in the light map, I should think of this layer, and when I was a little annoyed, Liu Lu said: "It's time to get off work now, let's go to lunch." ”

Li Shan looked at it, isn't it, it's already past twelve o'clock, and it's time to eat at noon, so he went out with Liu Lu, ready to eat something outside.

The maintenance department is on the first floor, so a right turn out of the house door to the company's gate, at this time the company's staff from other departments are also out of the door to go out to eat.

These people are obviously different from the work clothes they are wearing, they are all wearing professional suits, with work cards pinned to their chests, and they all have a high-spirited look from their bones.

The main entrance of the building is two induction doors, from where most of the employees enter and exit, but Liu Lu pulls Li Shan around to a small door next to it, to go out from here.

The small door was still closed at this time, and it was necessary to press the door control next to it to open it, and there was a little detour from here to the staff restaurant, which made Li Shan a little puzzled, and when they went out, they looked at the people who went in at the main entrance, and immediately understood something.

He took a day off at the customer service center, so he could stay here at noon.

Lunch was eaten in the staff restaurant of Dingfeng United, the food here was not bad, Li Shan originally said that he was going to invite Liu Lu, but here it can only be paid with the company's employee card, and Li Shan has not done it yet, so he has to give up.

After a busy day, Li Shan dismantled a lot of circuit boards, and learned how to use a multimeter, as well as resistance and capacitance detection methods, but this is still far from what Wang Gong said to compose a good drone.

In the maintenance department, he felt that Liu Lu was not bad, so he asked him for advice when he was free.

Liu Lu said that in order to fully master the assembly of UAVs, you need to master circuit analysis, analog electronic technology foundation, digital electronic technology foundation, C language programming, single-chip microcomputer technology, sensor and detection technology, aerodynamics and other aspects of knowledge, but you are currently just a simple assembly, you don't need to know so much. Most of today's components are modular, so it's not difficult to assemble, but it's hard to put them together.

Li Shan used to just think about how to control drones, but he found that he knew too little about drone-related aspects, and it seemed that he would have to work hard to understand it in depth.

This reminded Li Shan of the self-study exam he signed up for.

At the beginning, I applied for a computer major completely according to my interest, and now I feel that I need to master some electronic knowledge the most.

So in the afternoon, after Li Shan got off work from the peak, he went to the bookstore to buy relevant electronic books according to Liu Lu's recommendation, he only had a week, and he had to master some of the most basic electronic knowledge as soon as possible during this time.

The next day, Li Shan did not go to the summit union, but stayed in the office of the Hongqi Factory to study electronic books, and had learned similar content in school in the past, which was an extremely painful thing for Li Shan at that time, but now it is completely different.

He spent almost all of his time studying, reading and studying in the unit during the day, and at night, in addition to routine cultivation, he was learning these knowledge, and this study usually went to the second half of the night.

Because he knew that if he didn't hurry up, he would have to get out of the maintenance department, which would be a heavy blow to his plan, so he had to pass this pass no matter what.

In addition, he also purchased relevant courses online, not only to learn relevant knowledge, but also to ask some questions from teachers remotely. He was more patient than ever and eager to gain knowledge. This made him really understand what knowledge is power, and he made the change that I wanted to learn.

Basically, after reading the knowledge in the books at night, he went to the summit during the day to compare and practice repeatedly, which made Li Shan make rapid progress in the basic knowledge of electronics in a short period of time.

Of course, there must be something he didn't understand very well, and there happened to be a good teacher like Liu Lu on the side who was carefully instructing, but Wang Gong turned a blind eye to these, and that Tang Yixing just snorted coldly.

After two days of intensive learning, Li Shan has a preliminary understanding and understanding of some of the basic components of the drone, of course, he only knows the names of the parts and the basic role of these parts, as for the principle, basic theory and other in-depth issues, he will not take care of these.

After mastering a certain amount of electrical knowledge, the next step is how to assemble the drone.

Now there are some ready-made drone accessories on the Internet, and they are all modular design, according to the list listed unified procurement, and then according to the instructions to assemble.

Although Wang Gong didn't say it explicitly, his meaning was definitely not like this, wouldn't that be too simple.

Could it be possible to assemble a drone out of some scrap parts here?

The most important thing in the maintenance department is the accessories of these drones, Li Shan first found all the components, the main components are flight control board, electronic compass, transmitter, receiver, brushless motor, propeller, brushless ESC, rack, battery, battery low-voltage alarm, etc.

He first started with the flight control board, and found a board that looked relatively complete in a pile of waste items, which included the processor, gyroscope, air pressure meter, accelerometer and other sensors, I/O interface and other main components.

Li Shan found out these components one by one, and after some testing, when it was determined that the performance of these components was intact and reliable, he installed it on the flight control board.

After repeated exploration and practice, Li Shan finally assembled a refurbished flight control board, although the welding level of those components on the board was a little unbearable to witness, but it was still usable.

In this way, after another two days, all the components for assembling the drone were ready, and the next step was to assemble.

He first assembled the rack, then the flight control system, and finally the power system.

Now Li Shan can be said to be racing against time, and he often works all night in the maintenance department. On the sixth day, Li Shan finally assembled a drone, but this is not complete, and some debugging is still needed so that the drone can really fly. These include: accelerometer calibration, compass calibration, remote control calibration, ESC throttle travel calibration, failsafe settings, .........

When the first rays of sunlight in the morning poured into the window of the office of the maintenance department, Li Shan, who had passed through a sleepless night, although his face was full of tiredness, but he could not hide the excitement in his heart, he looked at a drone placed on the table, this drone was not wrapped in a shell, the red and blue wires on it were still exposed, and glued to the body with tape, and other components were also exposed.

Although it looks very ugly, this is the first drone he has assembled by hand, and it has been his work for nearly a week.

Through the assembly of the drone, Li Shan also has a general understanding of the composition and structure, including the debugging of the drone, I feel that he has learned a lot in the past week, although he has obviously lost a lot of weight, but the excitement in his heart is beyond words.

Liu Lu first congratulated Li Shan and praised him for his understanding in this regard, only that Tang Yixing was full of disdain, and bluntly said that this broken thing is only suitable for children as toys.

Although Wang Gong was noncommittal, he then arranged some work for Li Shan, which also affirmed Li Shan from one side.

There are only these four people in the maintenance department, and Wang Gong basically doesn't take over the work, and the general work is completed by a few other people. There are many men and women who come to the maintenance department every day to maintain or repair drones, especially female pilots. It's no wonder that the average male pilot has some hands-on ability, and they can deal with the general minor problems by themselves, unless there are some big or difficult to eliminate faults to find here.

With the popularity of drones in recent years, the number of female pilots who have joined this line has gradually increased, and these female pilots are generally from good families, and they are at a good age.

The two young men in the maintenance department, although they were tired enough every day, were already fascinated by these female pilots who came in and out. In addition to only working hard to please these female pilots all day long, the improvement of the level of their own pilots has been stagnant for many years.

This made Li Shan shake his head secretly, but he wouldn't be nosy.

Receiving these male and female pilots is basically a matter for the other two, and they are also happy to do it, on the one hand, they can contact some female pilots, and on the other hand, they can also take the opportunity to expand some contacts.

Because the summit joint is going to conduct an internal competition recently, there is an endless stream of pilots who need to be repaired and maintained here every day, so the workload is now several times that of the past, so that it exceeds their normal maintenance capacity, and the inventory room can not be placed, so a storage rack is specially ordered to store the drones to be repaired.

Since there are more people for maintenance, the waiting period is also long, for the sake of fairness, it is generally sorted according to the first come, first served, and some people's pick-up time limit is scheduled to come a week later, which is simply unacceptable for those pilots who are in a hurry to train.