Taking a large-scale steel enterprise MES project in China as an example, the definition and classification of modern process companies, as well as the supply chain mode of process enterprises finally proposed the integrated model of steel enterprises.
Observing the development trend of the world production management model can clearly see that corporate behavior is bound to be single, local improvement towards comprehensive, integrated optimization, especially planning, organization, controlling three major functions, etc. Target and the difficulties and focus of competitive advantage. Manufacturing Execution System is mainly used to solve the overall optimization, the production plan and production process of the production process - this problem does not only directly affect the production efficiency of the company, but also becomes internal information integration and enterprises in modern enterprises. Bottlenecks optimized between supply chain. This series of lectures will be used as an example of a large steel enterprise MES project in China, and analyze the management philosophy, management methods, and system implementation of modern process enterprises manufacturing implementation system.
Since the 1980s, accompanied by consumers to more diverse the needs of the product, the production method of the manufacturing is started to turn from a large number of rigid production to multi-variety of batch flexible production; computer network, large database and other IT technology And the development of advanced communication technology is relying on, the information system of the enterprise has also begun to switch from the local, post-processing method to the global pointing, real-time processing. In November 1990, the US IT Consulting Company AMR first proposed the concept of manufacturing the system (MES), providing a widely accepted idea to solve the problem of enterprise information integration.
Mes for bottlenecks for enterprise value-added processes
The International Manufacturing Execution System Association, Mesa is the definition of MES, "MES provides information to optimize the information required for production activities that are put into products from orders. Mees use timely, accurate information, guidance, start, Responding and recording plant activities, enabling a rapid response to changes in conditions, reducing non-value-added activities, and improving the efficiency of the company's operation process. MES can not only improve equipment investment returns, but also help timely delivery, speed up the stock turnover Increase the income. Mees provide basic information of production activities in the enterprise and supply chain, with two-way interaction. "
Such definitions, Dao's design, development, implementation is carried out around corporate production - this is carried out directly from the value of the value of the benefit, and is often valued for the current enterprise information construction. Insufficient situation, software vendors customize specialized MES based on the characteristics of process-based enterprises.
Definition and classification of modern processes
The modern process industry is often referred to in achieving value-added industries with raw materials to finished products, both physical changes and chemical changes. Such definitions are only to divide the service industry and some processing industries. According to the logistics situation in the production process of the enterprise, they can distinguish between different types of companies, but also realize the company accurately reflect the production value-added situation. Macro Control to Micro Coordinated Scientific Management Methods.
From the "V" type logistics, it is easy to see that the characteristics of the raw materials are small, the processing route is similar. The final product has more types, "V" type logistics, the "V" logistics, is as steel, refining, etc. One of the process industries corresponding to it is "A" type logistics, such as shipyard, with more raw materials, complicated processing route, and less product. Enterprises that are "T" type logistics between the two are, such as automotive manufacturers, assembly plants, characteristics are more common parts, processing routes, and final product species.
According to the above statement, the rigorous process companies, most of them are "V" type logistics, basically belong to the basic industry, is a typical capital-intensive industry, increasing the size of the enterprise within a certain range. Effective reduction costs, process technology and material technology have been quite mature, and the rigidity of technology is large. At present, some weaknesses of my country's process companies are mainly very low, and the technical equipment is still relatively backward. The relative excessive demand of production capacity, and the proportion of high value-added parties in the product. Implementing MES helps improve the status quo from management methods and technical levels.
Process Enterprise Supply Chain Model Any production system should achieve economic significance, that is, the optimal processing system logistics, capital flow, and information flow, with the lowest resource consumption and production of products that meet the market requirements. Therefore, research on industrial production of modern process is from analyzing its logistics, capital flow and information flow characteristics, and the steel enterprises will be described as an example.
1. Logistics features: multi-segment production, multi-stage transportation, multi-stage storage, high types of logistics, more process, and in form, and are accompanied by a variety of raw materials. In products and finished products include: iron ore, powder, raw coal, pig iron, scrap, iron water, steel, final product (board, tube, roll, line, type). The use of large equipment, high cost, complex operation, strong operation, high continuity, high requirements, not only have time balance and temperature balance, but also have resource capabilities and logistics balance.
2. Funding characteristics: Enterprise investment huge, frequent capital flow, complex logistics characteristics, and financial analysis for huge production scale, the control of capital flow has increased difficulty, and must comply with strict accounting system and implement flexible Fund management can accurately reflect the business status and effectively control it in a timely manner. The lag of financial data such as funds and the real time of controlling funds, requiring network databases, etc.
3. Information flow Features: Production and operation activities require a large number of feature values, involving content from financial, personnel such as traditional information management fields to production management. Not only must be produced according to the order, formulate a reasonable production plan, implement comprehensive quality management, but also to comprehensively monitor the production process, data collection to meet the real-time requirements of production management, and constantly update information, materials, products, etc. Comprehensive and detailed statistics, the auxiliary manager releases the most reasonable control information, thus fulfilling the business goals of the business.
Steel enterprise integrated model
After getting the supply chain mode outside the company, it is also necessary to design the functional model design according to the analysis requirements, and the system is "layer", and when implementing, according to the computer, network system, "level" . The management of steel companies can be divided into three floors and achieved by seven levels.
1. Program layer: including business decision-making and corporate plan level. Main functional module: production and operation decision; long-term, medium and long-term production planning; financial management; human resources management; procurement distribution; cost management; inventory management; order processing; assist decision, etc.
2. Executive layer: including the workshop production stage and production schedule level. Main functional modules: production scheduling and homework; quality management; personnel and equipment management; material tracking and product tracking; analysis of the operation process.
3. Control layer: Includes process control level, device control level and detection driver level. Main function module: monitoring of production lines; adaptive control; equipment control; on-site signal detection.
