Especially when two elevators cooperate with each other, or three, or even four, five or six elevators cooperate.

How do you meet the different needs of different floors and different groups of people?

At this time, you need your elevator and have a very powerful control system.

In the past, because elevators started from Europe and the United States, they first accumulated quite a lot of experience in using elevators.

When entering the permanent magnet synchronous elevator, it can be said that the elevator industry has ushered in a revolution.

And this time, the Japanese happened to catch up with this good time.

The key point is that Japan's electronics industry was still very developed at that time, so they did an excellent job in electronic control systems.

In this regard, you might as well take a look at the landmark buildings that are hundreds of meters high in major cities in China.

Most of the elevators used in these buildings are high-speed elevators from Mitsubishi.

Because in this regard, they are indeed the best in terms of speed, accuracy, stability, safety, etc.

The Japanese elevators are indeed what we need to look up to now.

And if you want to catch up in this aspect, you need people to keep experimenting and accumulate data.

Finally, the optimal training is carried out based on the data.

Only by obtaining your own control system.

In this regard, there are few domestic elevator manufacturers who are willing to spend a lot of money on research and development.

Because of this situation, if you want to do research and development, you must first be willing to take out a building.

Let your system R&D team keep guarding a few elevators every day to keep going up and down, and operate the elevators according to different situations.

During this period, three costs will be incurred, one is electricity bill, the other is personnel expenses, and the other is the site cost.

After all, it is not an elevator manufacturer who is willing to build a building and make people experiment continuously.

Not to mention that they really took out a building, they were reluctant to let their simple shelf come out and conduct experiments.

This is mainly related to the thinking concepts of domestic manufacturers and owners.

After all, the factory itself started with taking over foreign orders, and there were no R&D personnel at the beginning.

As for the boss! Most of them were just the first group of people who were braver.

Have policy support? I caught up with the good times when I was at home? So I started my own factory.

But later on, do you want them to do R&D? Are you telling them about the investment required for R&D? Most people give up.

And there are not many people who are so stupid as Li Xizhou who finally persisted.

Of course, thanks to his unique conditions.

I actually have a building in my hand? Although it is abandoned? But it is just right to use it for the control system personnel to experiment, accumulate data, and finally program it.

In order to complete this project, he also let his programmers play in that building for a whole year.

Although it is not as exaggerated as day and night? Overtime work every day has become the norm.

In the end, relying on the efforts of his 100-odd technicians, they spent more than a year to really come up with their own elevator control system.

Speaking of this, Li Xizhou was also full of pride.

When Xiao Feng and He Xiaojun heard this, they couldn't help but sincerely expressed their admiration for Li Xizhou.

This is the domestic industry? The most lacking spirit of fighting to the death.

Now, the above are advocating that major enterprises carry out industrial upgrading and transformation and enter the mid-to-high-end industrial chain to produce products with higher added value.

But many companies lack motivation and even face various preferential conditions given by the state? They are unmoved.

On the one hand, this is related to the way of thinking of business owners, and on the other hand, it is related to the lack of this spirit of hard work.

Before the change and opening up, it can be said that all kinds of products are in short supply in China.

At that time, as long as you have the courage and dare to start a business, you can build a factory.

And as long as you can make products, you won’t have to worry about selling your products, because our domestic market is really too big.

Moreover, the product does not need to be very high-end, as long as it can be used, it is fine.

So the companies that started at that time could be said to make money by lying down.

Because of the state's assistance and no competition from foreign companies, everyone made money easily at that time.

But now it’s different, when some industries have reached the limits of traditional fields.

At this time, it is time for everyone to climb upward.

At this time, your business owner needs to be willing to invest, be willing to endure hardships, and be willing to give it a try.

Because the upstream of the entire industrial chain is almost controlled by the world's big names such as Europe, America, Japan and South Korea.

They have various advanced technologies, advanced materials, and countless patent blockades.

It must be very difficult to grab a bite of food from them.

But this is not the way any developed country in the world has developed?

As long as your country still wants to strive for the best and strive for progress, you must suffer the hardship at this time.

No matter how hard the bone is, you must chew it!

The problem in China is that those business owners are unwilling to chew tough problems.

Because it was so comfortable to make money while lying down, now they are letting them suffer, so they naturally refuse.

Of course, this is also human nature. After all, buying a house makes more money than you earn in a year when you work in a business. Who is willing to try to get into tough problems?

So the more at this time, the more precious the industrialists like Li Xizhou are.

It can even be said that what the country lacks most now is this kind of entrepreneur and practical worker who dares to face difficulties!

In fact, at this time, Xiao Feng and He Xiaojun were already very inclined to invest in Li Xizhou.

"Well, it seems that you have already studied this elevator almost all?"

Xiao Feng and He Xiaojun exchanged a look, and then said to Li Xizhou with a smile.

Logically speaking, as long as Li Xizhou is not stupid, he should be able to guess the secret meaning of Xiao Feng and the others, and they are about to let go.

To put it bluntly, they were already fooled. As long as he climbed along the way and picked up the nice things, he would probably get the investment of the two big bosses.

But no one expected that this old man would be so stupid.

"No, until now, I'm still one last critical step."

After he said this, even Xiao Feng and He Xiaojun were stunned. Hey, this guy, true, hey!

"Well, that's the step away?"

"It's the door system and frequency converter."

Xiao Feng and the others could only ask according to Li Xizhou's words.

At this time, Li Xizhou, who was originally full of optimism, began to look sad.

"Mr. Xiao, Mr. He, you don't know. In fact, other aspects of doing this elevator are easy to solve, but this system is the most troublesome."

"This is mainly related to the big gap between our domestic and accurate ranging system and abroad."

"When it comes to the door system and frequency converter, it actually means how far away is from the floor you are going to when the elevator closes and starts to pull upwards."

"Your elevator door should have an automatic identification system to identify the special identifiers on each floor, and then change the instructions of the control system."

"For example, if you want to reach the tenth floor, the elevator speed will definitely be very fast in the initial stage, but when it is raised to the eighth floor, your elevator will start to slow down and brake."

"Because if you don't brake early, the car will likely rush directly to the 11th floor due to inertia."

"So the main function of this door system is to judge the brake distance and then allow the elevator to park accurately on the floor where it should be parked. The inner car door of the elevator must be accurately connected to the elevator door on the outside floor."

"This set of mechanical actions seems very simple, but it has always been a difficult problem for domestic elevator companies."

"The difficulty lies in control. On the one hand, it is precise docking, and on the other hand, it involves the problem of the continuous frequency conversion of the car's speed in the air."

"This frequency conversion is like a car's transmission. You have to upgrade the gears at the most appropriate time and then reduce the gears at the most appropriate time."

"This is the only way to ensure that your car will not rise to the upper floor due to inertia, and when you go downstairs, you will not be unable to stop the car due to inertia, and eventually hurt the passengers in the car, causing an accident."

"And this aspect has been monopolized by foreign elevator manufacturers before, and we have never conquered it."

"In fact, almost all of the three key components of the elevator I mentioned need to be imported in our country."

"As for those domestic elevator manufacturers, they actually imported these key components and came back to assemble them."

"For example, Mitsubishi, Otis, Panasonic, etc., are almost all assembly factories. There are not many that truly have domestic independent intellectual property rights."

Li Xizhou talked about the current situation of the domestic elevator industry, but he was also a little sad.

To be honest, he was the first to do the elevator industry, but our country has just experienced the best golden years in the real estate industry.

And these twenty years are also the golden twenty years of the elevator industry?

But in the past twenty years, our elevator industry has not yet reached its peak and has not made any progress.

I have bought elevators from Japan, Europe and the United States in our country for twenty years.

Over the past twenty years, the amount of elevators we have introduced has cost hundreds of millions of dollars every year, and at most, we have to introduce billions of dollars a year.

Although it seems incomparable to the value of introducing chips, this is the most basic and is related to the national economy and people's livelihood equipment!

But the core technology is still firmly in the hands of foreigners, which is very unprofitable.

In the past, Xiao Feng and the others didn’t understand the situation in this industry, so they had no judgment.

But now it’s different. When they heard Li Xizhou say this, they had basically made a decision.

They have conscripted for this project...
Chapter completed!