One Thousand Three Hundred and Eighty-Five

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

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

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

In the past, because elevators started from Europe and the United States, they were the first to accumulate considerable experience in elevator use.

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

And this time the Japanese just caught up with this good time.

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

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

It can be said that most of the elevators used in these buildings are Mitsubishi high-speed elevators.

Because in this regard, they are indeed the best, with speed, accuracy, stability, security, and other aspects integrated.

The Japanese elevator is indeed what we need to look up to now.

And if you want to catch up in this area, then you need people to continue to experiment and accumulate data.

Finally, based on those data, the optimal tuning is carried out.

To come up with your own control system.

In this regard, it can be said that few domestic elevator manufacturers are willing to invest in research and development.

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

Let your system research and development team guard a few elevators every day to continuously go up and down, and operate the elevators according to different situations.

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

After all, not any elevator manufacturer is willing to build a building for people to experiment continuously.

Not to mention actually taking out a building, they are reluctant to let their simple shelf out for experiments.

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

After all, the factory itself started from accepting foreign orders, and there were no R&D personnel at the very beginning.

Boss! Most of them are the first group of courageous people.

Is there policy support? It was a good time to be at home? That's why I started my own factory. ,

But in the end, you said you want them to engage in research and development? Are you telling them about the investment required for research and development? Most people retreated.

As for Li Xizhou, there are not many people who persist in the end?

Of course, thanks to him, he has such a unique condition.

There is really a building in my hand? Although it is deserted? But it is just right to use it for the control system personnel to experiment, accumulate data, and finally program.

And in order to complete this project, he also asked his programmers to play in that building for a full year.

Although it is not as exaggerated as non-stop around the clock? But working overtime every day has become the norm.

In the end, relying on the efforts of a hundred or so technicians under him, it took them more than a year to really come up with their own elevator control system.

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

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

This is the most lacking spirit of death in the domestic industry.

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

However, there are many companies that 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 such a dead-end spirit in these companies.

Before the opening? It can be said that there is a shortage of various commodities in the country.

At that time, as long as you had the guts to start a business, you could start a factory.

And as long as you can make products, your products will not worry about selling, because our domestic market is really too big.

And the product doesn't need to be sophisticated, as long as it works.

So the companies that started at that time can be said to have made money lying down.

Because of the support of the state and the lack of competition from foreign companies, it was easy for everyone to make money at that time.

But it is different now, when some industries have reached the limit of traditional fields.

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

At this time, you need your business owner to be willing to invest, be willing to endure hardships, and be willing to give it a go.

Because the upstream of the entire industrial chain is almost all controlled by the world's biggest names in Europe, America, Japan, and South Korea.

They have all kinds of advanced technologies and materials in their hands, as well as countless patent blocks.

It must be very difficult to grab a bite of food in their hands.

But didn't any developed country in the world develop in this way?

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

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

The current domestic problem is that those business owners are unwilling to chew hard bones.

Because it was too comfortable to make money lying down in the past, but now they are asked to suffer, and they naturally refuse.

Of course, this is also human nature. After all, buying a house earns more than you earn in a year in business. Who would want to gnaw hard bones!

So the more it is at this time, the more precious an industrialist like Li Xizhou is.

It can even be said that what is most lacking in China now is this kind of entrepreneur who dares to face difficulties and doers!

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

"Well, it seems that you guys of this elevator have already researched about the same?"

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

Logically speaking, as long as Li Xizhou is not stupid, he should be able to guess Xiao Feng's hidden meaning, and they are about to let go.

To put it bluntly, the two of them have been fooled, as long as he climbs along the path, and to put it nicely, there is a high probability that he will get investment from the two big shots.

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

"No, until now, I'm still short of the last critical step.",

When he said that, even Xiao Feng and He Xiaojun were taken aback, hey, this buddy, you are so sincere, hey!

"Well, how far away is that?"

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

Xiao Feng and the others could only follow what Li Xizhou said.

At this time, Li Xizhou, who was originally optimistic, began to look sad.

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

"This is mainly related to the large gap between our domestic precision ranging system and foreign countries."

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

"You need an automatic identification system on the elevator door to identify the special signs on each floor, and then make changes to the instructions of the control system."

"For example, if you want to go to the tenth floor, the elevator speed must be very fast at the initial stage, but when you ascend to the eighth floor, your elevator will start to slow down and brake."

"Because if you don't brake early, the car may rush directly to the eleventh floor due to inertia."

"So the main function of this door system is to judge the braking distance, and then make the elevator stop 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 outer floor."

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

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

"This frequency conversion is equivalent to the transmission of a car. You have to upshift at the most appropriate time, and then downshift at the most appropriate time."

"In this way, you can ensure that your car will not rush 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 finally fall and injure the passengers in the car, causing accidents. "

"And this aspect has been monopolized by foreign elevator manufacturers before, and we have not conquered it."

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

"As for those domestic elevator manufacturers, in fact, they all import these key components and come back to assemble them."

"For example, Mitsubishi in Shanghai, Otis in Yangcheng, Panasonic in Yangcheng, etc., are almost all assembly plants. In fact, not many have domestic independent intellectual property rights."

Li Xizhou talked about the status quo of the domestic elevator industry, and he was a little embarrassed not to enter.

To be honest, he was in the elevator industry at the earliest, but our country has just experienced the best golden twenty years in the real estate industry.

And these 20 years, is it not the golden 20 years of the elevator industry?

But in the past 20 years, our elevator industry can be said to have not made a single step, and there has been no progress at all.

Let people buy elevators in Japan, Europe and the United States for 20 years in our country.

In the past 20 years, the amount of elevators we have introduced has reached hundreds of millions of dollars every year, and even billions of dollars a year at most.

Although it seems that the value cannot be compared with the introduction of chips, but this is the most basic equipment that is related to the national economy and the people's livelihood!

The core technology is still firmly in the hands of foreigners, which is very uneconomical.

In the past, Xiao Feng and the others didn't understand the situation of this industry, so they didn't make any judgments.

But it's different now. Hearing what Li Xizhou said, the few of them have basically made up their minds.

They voted for this project...