Introduction: The world's industrial automation industry has formed an oligopolistic situation in which a few multinational companies have produced on a large scale and divided up the global market after decades of heavy waves. In recent decades, with the rapid development of ICT technology, industrial automatic control systems and instrumentation technology have made rapid progress, featuring miniaturization, digitization, intelligence, networking, integration and other characteristics.
Industrial automation means that various parameters in industrial production are used for control purposes to achieve various process control. In the entire industrial production, the operation of human resources is minimized, and energy and information other than animals can be fully utilized for production work, that is, It is called industrial automation production, and the process that enables industry to carry out automatic production is called industrial automation.
The world's industrial automation industry has formed an oligopolistic situation in which a few multinational companies have produced on a large scale and divided up the global market after decades of heavy waves. There are only a few dozens of the original hundreds of manufacturers, the most famous ones are Siemens, ABB, HONEYWELL, Mitsubishi, Phoenix, etc., and their industrial control products all claim to have DCS / PLC / FCS functions. It has already won market credibility.
It is generally believed that industrial automation has two main areas: process automation (PA) supported by process (fluid motion) control technology and factory automation (FA or discrete production automation) supported by motion control technology. The former started from the traditional analog loop instrument, integrated ICT control technology, and developed into a distributed (or distributed) control system DCS. Its high reliability, convenient configuration software, rich control algorithms, open networking capabilities, etc. The advantage has become the mainstream of the computer industry control system, which is widely used in the automatic control of large-scale, numerous equipment and complex operating conditions of process equipment, such as large chemical plants and thermal power plants.
Since the 1990s, fieldbus technology FCS has developed rapidly. This is a multi-point communication, fully decentralized and open bottom control network system with digital intelligent instruments and measurement and control equipment installed at the production site and automatic control devices or systems.
Industrial informatization is the product of the integration of electronic communication technology (ICT) and advanced manufacturing technology. It is a comprehensive result of the controllability of equipment, the suitability of measurement and control equipment and the application of information optimization. The automatic control system and instrumentation are the nerve center, operation center and safety barrier of modern industrial equipment and transportation, energy, national defense, major public welfare equipment, etc. Its function is to monitor and control the entire process flow and product quality to ensure the safe and reliable operation of major industrial equipment To achieve efficient optimization.
Industrial control automation technology is a kind of application of control theory, instruments, computers and other information technologies to achieve detection, control, optimization, scheduling, management and decision-making of industrial production processes, to increase production, improve quality, reduce consumption, ensure safety, etc. The comprehensive technology of the purpose mainly includes three parts: industrial automation software, hardware and system. As one of the most important technologies in the field of modern manufacturing in the 20th century, industrial control automation technology mainly solves production efficiency and consistency problems.
In recent decades, with the rapid development of ICT technology, industrial automatic control systems and instrumentation technology have made rapid progress, featuring miniaturization, digitization, intelligence, networking, integration and other characteristics.
Industrial automation control is an important direction of industrial technological progress: the basic technology for solving efficiency, product quality, reliability and consistency. Popularizing industrial control is the basic work to promote the optimization and upgrading of the industrial structure, transform traditional industries with information technology, and promote the integration of the two.
The industrial automatic control technology route shows a trend of mutual penetration and integration. The scope of PLC application has expanded to small and medium-sized process control systems, short-range maintenance service systems, energy-saving monitoring and other fields. It has replaced DCS in some applications. DCS also uses PLC and industrial control computers to form a joint network. The general trend is to be more open (fine division of labor and cooperation), standardization, productization, and integration.
Therefore, advancing the automation of manufacturing links is one of the core technologies to enhance China's industrial competitiveness and the basis for the integration of the two technologies. Promoting independent innovation of industrial control technology, mastering the leading power of industrial control industry development, and reversing the current passive situation that is overly dependent on foreign technology and subject to people are a core issue in the current revitalization of the equipment industry and a strategic task that cannot be avoided.
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