What Is Autosuggestion?

Automatic control (automatic control) refers to the use of additional equipment or devices to make a certain working state or parameter of a machine, equipment or production process automatically run according to a predetermined rule without the direct participation of people. Automatic control is relative to the concept of manual control.

Automatic control

Automatic control (automatic control) refers to the use of additional equipment or devices to make a certain working state or parameter of a machine, equipment or production process automatically run according to a predetermined rule without the direct participation of people. Automatic control is relative to the concept of manual control.

Chinese name

Automatic control

Foreign name

automatic control

Before

No one is directly involved

Room temperature adjustment Room temperature adjustment is a concise example. The purpose is to keep the indoor temperature at a fixed value , although the factors such as opening windows cause the indoor heat to be emitted outdoors (interference d). To achieve this, heating must be appropriately affected. By adjusting the valve, the temperature is kept constant. In addition, the temperature of the heater's hot water will be disturbed by the outside temperature before people feel it. The remaining examples are three-barrel systems.

The earliest automated control dates back to ancient China's ancient timers and leaky pot guide cars, and the widespread application of automated control technology began during the industrial revolution in Europe. The British Watt was inventing

In many fields of modern science and technology, automatic control technology plays an increasingly important role. Automatic control refers to the use of additional equipment or devices (called control devices or controllers) to make a machine, equipment or production process (collectively referred to as the controlled object) a certain working state or parameter (ie The controlled quantity) automatically runs according to a predetermined rule.

The theory of automatic control is to study the common law of automatic control

The in-depth development of automation technology has promoted the continuous integration of unit technology, and the future represented by CIMS

The development of automatic control, from the beginning of the stage to the formation of a control theory, talks about the entire process. Automatic control refers to this

From the beginning, if you are exposed to this subject, you may all know that it is

In fact, this centrifugal governor was not invented by Watt. Generally, we call it Watt's

Now another report is the work of Sperry from 1925 to 1940. Here is talking about anti-aircraft, that is, air defense fire control, fire control is like this. Its fire control, a place with a lot of people here, this is its main core part, called the fire control director. What does fire control director mean? According to the azimuth, high and low angle of the aircraft, the aircraft has a forward angle in flight. Hit the forward angle. Control this and tell the artillery. This place is its commander. When the fire control took place, there were three people standing there. The term was artificial servo, three people, why three people, an azimuth, a high and low angle, and a fuze. Because he had to figure it out at that time, he had to command the instrument and figure out how long it would take when my shells flew to your plane. A fuze refers to a

This was done by the Sperry company at that time, and its main job was this commander. How this commander works, you can see that there are a group of people standing on this gun. It was around 1940 at that time, so it was very dangerous for this person to stand on it, because the enemy plane above came over, this was the situation. After 1940, great changes have taken place in the fire control system. You see that few people are there. Who made this change? Here is one

Inside the hard drive system

There is also the anti-slip system for cars that are encountered everyday. The figure on the left is equivalent to the simulation calculation. Upward simulation calculations are ordinary cars. This kind of work is not done on paper; the right is a photo, but it is actually an experiment. These are currently related to our lives. Some control systems.

In 1876, Russia's Wisniegrass, who specialized in practical research, had a direct-acting governor at the time. As I just said, I will say that there is a problem for a while, and that problem for a while. I ca nt find the problem, and I am going to give up the whole plan. Combining his steam engine and the characteristics of his steam engine, Wiesnegraski pointed out how the parameters should be selected to ensure stability. Wisniegrasz is based on the industrial reality, and everyone's evaluation of him is very high. He solved the situation when the regulator was about to be dismounted. He pointed out that it was a parameter problem, so he was in Thanks a lot.

At the same time, in 1877, everyone learned the criterion, there was an algebraic criterion,

He went to work on August 2nd, 1927. At that time, in the 1920s, he had to take a boat or a car to and from work in the United States. He was sitting on a ferry. So in this case, the negative feedback is 1927,

There is also Nichols, which we will mention below. Nichols proposed

The second book to be introduced is Qian Xuesen's Engineering Cybernetics. Qian Xuesen was a book written in 1954. At that time, the book he wrote in the United States was not available in English here, but

But what is decoupling design? The decoupling design actually requires the relationship between input and output. I 1 controls 1, 2 controls 2. In our terms, this is a response characteristic and does not indicate what features and requirements of my feedback system. However, I have seen some domestic magazines, and some people do not agree with this view, and you may come into contact in the future. When you use it, follow the actual one below

"Principle of Automatic Control" Hu Shousong Science and Technology Press 2001 (Fourth Edition)

"The Course of the Development of Automatic Control" Wang Guangxiong