Overview, Development Status and Development Trend of China's Industrial Automation Control Industry from 2018 to 2025

I. Overview of the industrial automation industry

Industrial automation refers to the general term for information processing and process control such as measurement, manipulation, etc., in accordance with the intended objectives, without the need for manual intervention by the machine or the production process. Industrial automation control systems typically integrate mechanical execution systems, electrical control systems, and sensor measurement systems. Based on the theory of automation control, industrial automation control systems are widely used in medicine, information technology, electronic circuits, mechanical design, optical design, thermal design, embedded software and system reliability design. Metallurgy, petroleum, chemical, non-ferrous metals, machinery, automobiles, textiles, paper, aerospace and many other modern industries. Since the industrial automation industry has a strong driving force for other industries, the level of automation technology has become a symbol for measuring the level of national economic development and the degree of modernization.

Second, the development process of China's industrial automation

The development of industrial automation in China can be roughly divided into three stages. The first is the end of the 50s and the 70s of the last century. This period can be said to be the initial stage of industrial automation in China. At that time, China had just completed the "three major reforms" and implemented the first "five-year plan", but it is still in the primary stage of socialist exploration. The development of industry is still dominated by manpower, and the industrialization road is developing slowly, but some stand-alone Automated processing equipment began to appear, and China's industrial automation sprouted.

In the mid-1980s and the mid-1990s, with the advent of reform and opening up, foreign capitals flooded into the Chinese market and brought new technologies and equipment. During this period, China's industrial automation has been fully developed, and various technologies have begun to mature. The emergence of CNC machine tools for hardware CNC systems and automatic production lines for drilling, boring, milling, etc. marks the maturity of industrial automation in China.

Since the end of the 1990s, the changes in the market environment have made the universal problems in multi-variety and small- and medium-sized production more serious. It requires automation technology to develop into its breadth and depth, so that its related technologies are highly integrated and the overall optimal performance is achieved. . CIM has been gradually accepted as a philosophy and a method; CIM is also a corresponding technology to achieve integration, integrating decentralized independent unit automation technology into an optimized whole. At the same time, concurrent engineering began to be applied and active in the field of automation technology as a business philosophy and work model, and will further promote the integration of unit automation technology.

Third, the status quo of industrial automation control in China

The development process of industrial automation control in China is relatively short, and it started late. It was only produced and developed in the 1940s. At that time, China's automation control equipment used a single machine processing method until the 1970s. China has only begun to adopt the operation of assembly line, and it has applied automation technology widely in industrial production, which is also the sign stage of the development of industrial automation control technology. At present, China's automation control technology has been integrated into high-tech technologies such as information technology, and integrated with other science and technology, the following author will mainly analyze the three technologies of PLC, industrial PC and DCS.

PLC is the abbreviation of programmable logic controller. It is a kind of memory that can be written. It relies on digital operation to realize the control of electronic system. It is the representative of computer technology application. At present, PLC has been widely used in China's industrial field, mainly because of its strong function, high cost performance, simple programming, convenient operation, high reliability, convenient maintenance, etc. PLC as a computer realizes the total monitoring and control of the production process. It can store and logic according to instructions, realize analog input and output, and is the key to industrial production control.

PLC was first developed by American General Enterprise Company. In 1969, the first programmable logic controller was born. Then the world began to study PLC controller. Its working steps mainly went through three stages: first, input The sampling phase; second, the program execution phase; third, the output refresh phase, has a significant role in industrial production, although China is constantly developing and improving the performance of the controller, but there is still a big gap compared with foreign countries. Many technologies need to be imported. In the future, China's scientific research units will continue to improve the performance of PLC and improve the level of industrial automation control in China.

There are two main types of industrial PCs: one is IPC; the other is Com-pact PCI. The virtualization technology adopted by IPC, Com-pact PCI is transformed from PCI technology. Industrial PC can meet more and more requirements of industrial production because it can adapt to more complex and harsh natural environment. Industrial PC The machine is anti-magnetic, dustproof, high temperature resistant, has good anti-interference ability, and can operate for a long time. It has excellent configuration and compatibility. The two control types of industrial PC are the guarantee for modern industrial production in China, and according to the area. The difference is that the PC can meet different customer service requirements. With the integration of Internet technology, the PC has realized the control of all aspects of internal production and promoted internal communication. At present, many companies are using industrial PCs to control enterprise production, which is inseparable from the advantages of the PCs we introduced earlier. As an automatic control device with advanced diagnostic functions and easy installation, the technicians have the steps. It is easier to master, and it is relatively easy to diagnose and repair after a fault occurs, and the cost is reasonable and cost-effective. Nowadays, the use of industrial PCs is very welcome in both China and the international community. With the continuous development of China's science and technology, China's technology research and development in this area will continue to improve. DCS is the abbreviation of Distributed Control System, which stands for Distributed Control System, which is a new type of control system compared to centralized control systems. In the 1970s, DCS began to develop. China's research on it is even later. With the continuous development of science and technology, China's investment in DCS is increasing. At present, China has reached both quality assurance and security. With the world's top level, with the gradual increase of research results, many companies in China are now applying DCS control systems to truly improve the production process.

Fourth, the future development trend of China's industrial automation control

According to Beijing Puhua Policy Information Consulting Co., Ltd. released "2018-2025 China Industrial Automation Control Industry Development Status and Market Prospects Forecast Report" shows:

1. Programmable Logic Controller (PLC) is developing towards integration and networking

As a new type of PLC, the development and application of OCS (Integrated Controller) has the advantages of simple and compact structure and convenient installation. Its appearance makes the control circuit of PLC more clear. OCS is different from traditional PLC, and its appearance effectively combines the advantages of multiple controller devices including HMI and FO. OCS effectively integrates them into one, realizes human-computer interaction, and makes technicians easier to operate. More convenient. As a programmable logic controller, it will develop towards integration and networking in the future. In the process of realizing human-machine interface, the HORNER programming platform is adopted, which is faster and more popular with enterprises. In addition, with the continuous development of China's information technology, the development of PLC has become more extensive with the help of computer technology. At present, both the control terminal and the transmission speed have been greatly improved, and in the future, it will develop in a more intelligent and efficient direction. .

2. Development of new fieldbus control system

With the continuous development of science and technology, the application of computer technology has enabled the development of new fieldbus control systems. Computer-controlled systems have undergone several stages of development, namely, base-type pneumatic instrument control systems, combined instrumentation control systems, and digital After the computer centralized control system and DCS, after a series of integration and development, the current control system began to develop in the direction of bus control. We are referred to as FCS, FCS will continue to grow and integrate with Internet technology in the future, so that the bus control system is widely applied to All areas of industrial control, with higher flexibility, better accuracy, faster transmission speed, are applied to a wider field and occupy a higher market position.

3. The development of intelligent control

The introduction of intelligence leads the transformation in various fields. It is the application of information technology. It uses artificial intelligence theory, learning algorithms and advanced technology to enable devices to simulate certain characteristics and functions of human intelligence. Industrial intelligent control is a control method proposed on the basis of artificial intelligence, mainly in the multi-functional aspects of automatic control of mechanical equipment. An open distributed intelligent system based on Ethernet and Web technologies, based on the network-wide TCP/IP four-layer protocol suite, provides highly modular, distributed technology and reusable industrial control solutions. For example, the new generation of solid-state sensors and smart transmitters are developing toward miniaturization, high precision, low function and intelligence. The intelligent valve positioner is controlled by a highly integrated microcontroller and can be configured for all control parameters. Realize linear, split-range control, equal percentage, fast open and other feature correction functions, and can be intelligent.

In short, the current industrial automation control technology has been applied in many industries in China. The automation control has greatly reduced the labor burden, effectively improved the work efficiency and improved the production quality. At the same time, the automation application is the embodiment of the development of science and technology. The adjustment and upgrading of China's industrial structure. In the future, China's industrial control automation technology will still combine multiple disciplines, combine multiple technical fields, and continue to develop with advanced science and technology, towards a more intelligent, networked, and convenient road. This has a very positive effect on promoting China's economic prosperity, continuously improving China's overall national strength, and improving international competitiveness.