The object of industrial automation faces continuous production processes (chemical, petroleum, electric power, etc.) and discrete production processes (machinery and automobile manufacturing production lines, etc.). Due to the different objects, the measurement and control systems used are also different. The automation of industrial enterprises is generally divided into three levels: 1. The field level (basic automation) includes field instruments and DCS, PLC, FCS, etc. 2. The MES layer (manufacturing execution system or process control) includes optimization control, advanced process control (APC) artificial intelligence, production scheduling, etc. 3. ERP layer (resource management decision-making layer) 1. Development at home and abroad 1. At the field level, field instruments are developing towards intelligence, while DCS and PLC are changing from EIC integration to PC-based control systems and FCS Direction development. 2. Most foreign multinational companies or large-scale enterprises have formed a relatively complete corporate network. From the field level, MES level to ERP level, they have been integrated, realizing the integration of CIMS (computer integrated manufacturing system) or management and control. . The decision makers of the company can connect to the company’s network through laptops and satellites anywhere in the world, and within ten minutes can make a decision on the customer’s order, that is, whether it can be delivered on time and is profitable . However, some large domestic enterprises have not yet reached the above-mentioned level. 2. Existing problems 1. After foreign companies use ERP, less than half are effective. 2. After China joined the WTO, in order to enhance the competitiveness of enterprises, many large enterprises are also adopting ERP, but because of the different national conditions and corporate culture, they can neither copy foreign countries, but do it themselves and lack experience; and the funds are often in the billions. Some people sighed: “Those who don’t go to ERP wait to die; go to ERP is to die.” 3. Although CIMS has been listed in the 863 plan, its development is still unbalanced. Most of the machinery manufacturing industry is in the continuous production process. Less. 4. There are few metering instruments used for economic accounting, especially the multi-channel ultrasonic flowmeter for measuring the flow of natural gas from the West to the East, which cannot be produced in China. 5. Detecting instruments are the basis of automation. Due to the difficulty of special instruments in various industries and the small amount of consumption, there are fewer and fewer domestically developed units, and they have to rely on imports. 6. Although advanced process control artificial intelligence has developed results, it is indeed beneficial and not many people can persist. 7. FCS has as many as 12 international fieldbus standards, and multi-standards are equal to ubiquitous standards, so users are mostly on the sidelines. At present, although Ethernet can be used in fieldbus at home and abroad, there are still many difficulties. The problem of the explosion-proof zone is not easy to solve, and it is still under political control. 3. The strategic goal of future development is to provide a complete set of high-precision, reliable and reliable detection instruments and control systems for the newly built 5 million tons of oil refinery, 500,000 tons of urea, 3 million tons of steel plants and 600,000 KW generator sets. Formed the two major industrial automatic meter bases in Shanghai and Chongqing and the second major management and control system R&D and manufacturing centers in Beijing and Hangzhou, Zhejiang. Initially formed an industrial automation system with independent intellectual property rights and Chinese characteristics to improve the level of science and technology, the quality of personnel, and strengthen national strength. 4. Cutting-edge and key technologies 1. New materials, new processes, and new chips are used for research and production of instruments. 2. Complete set of industrial control software technology with independent intellectual property rights. 3. MES and ERP software platform suitable for China's national conditions. 4. Fieldbus based on Ethernet. 5. Artificial intelligence technology
