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Several Hot Technologies in Industrial Automation Industry!
发表日期：2019-09-19 00:30 浏览次数： 标签：
With the promotion of automation technology, industry is developing towards digitalization, intellectualization, networking and integration. Manufacturing factories are moving towards a highly integrated and integrated process.
And in the future, as the means of applying high-end automation technology become more and more mature, we can see more possibilities!
Intelligent Instrument
In the control system, instrument is its component element, and its technological progress follows the development of control system technology. At present, the control theory has developed to a new stage of intelligent control, and the intellectualization of automatic instruments becomes inevitable.
Intelligence of instruments is mainly attributed to the development and application of microprocessor and artificial intelligence technology.
For example, intelligent technologies such as neural network, genetic algorithm, evolutionary computation and chaos control are used to realize high speed, high efficiency, multi-function, high mobility and flexibility of instruments.
Then, using the fuzzy reasoning technology of the fuzzy rules, we can make various kinds of fuzzy decisions on the various fuzzy relations of things.
For example, using software to realize signal filtering, such as fast Fourier transform, short-time Fourier transform and wavelet transform, is an effective way to simplify hardware, improve signal-to-noise ratio and improve the dynamic characteristics of sensors.
For example, the strong self-learning, self-adapting and self-organizing abilities of artificial neural network technology, associative and memory functions, as well as the black box mapping between input and output of non-linear complex relations are fully utilized.
At present, the basic industries such as instruments, instruments and sensors are the weakest and most in need of development in the field of intelligence in China. With the rapid development of science and technology and the continuous improvement of automation, the instrument industry in China will also undergo new changes and obtain new development. High-tech instrumentation products, especially intellectualization, will become the mainstream of the development of instrumentation technology and industry in the future. Intelligent instruments based on the theory of intelligent control have made progress in the following aspects:
Expert Controller
Expert control system (ECS) is a typical knowledge-based control system. It is a program system with a lot of expertise and experience. It uses artificial intelligence technology and computer technology, according to the knowledge and experience provided by one or more experts in a certain field, reasoning and judgment, simulating the decision-making process of human experts, and solving complex problems that need human experts to solve.
(2) Fuzzy Controller
Fuzzy controller, also known as fuzzy logic controller. Fuzzy control technology has the ability to deal with uncertainties, inaccuracies and fuzzy information. It can effectively control the controlled process which can not build mathematical models and solve some problems which can not be solved by conventional control methods. Therefore, fuzzy control has been widely used in the field of industrial control.
(3) Neural Network Controller
The application of neural network in industrial control system improves the information processing ability and intelligence level of the system. The so-called neural network control, referred to as neural control, refers to the use of neural network technology to model complex non-linear objects, or act as a controller, or optimize calculation, or reasoning, or fault diagnosis and other work.
It should be noted that in the field of intelligent instrument, whether it is neuron network, fuzzy control or chaos control, although there are many articles published by Chinese scholars, the work and achievements of strict and meticulous and independent innovation are not much. Some high-end instruments still need to be imported from abroad.
Networking of Control Systems
The control system in the 21st century will be a combination of network and control. The research of networked control system has become one of the frontier topics in the field of automation.
As the communication network is embedded in the control system as a system link, it greatly enriches the industrial control technology and means, and makes great changes in the system structure, control methods and man-machine cooperation methods between the automation system and the industrial control system. At the same time, it also brings some new problems, such as control. Coupling of system and communication, time delay, information scheduling method, distributed control mode and fault outage, etc.
With the emergence of these new problems, the control methods and algorithms of automatic control theory in the network environment need to be constantly innovated.
With the continuous development of computer technology, communication technology and network technology. The traditional control field is experiencing an unprecedented change and is beginning to develop towards the direction of network. The structure of the control system has developed from the initial CCS (computer centralized control system) to the second generation DCS (distributed control system) to the current popular FCS (fieldbus control system). The requirement of large-scale and high-speed data transmission, such as image and voice signals, has led to the combination of industrial Ethernet and control network.
This wave of industrial control system networking brings in many popular technologies, such as embedded technology, multi-standard industrial control network interconnection, wireless technology and so on, which expands the development space of industrial control field and brings new development opportunities.
To promote industrialization by informationization is not only a powerful guarantee to maintain the sustained and rapid development of the national economy, but also an important means to transform the traditional industrial structure. Network Technology as the Generation of Information Technology