With the development of informationization, MES has become an inevitable trend in enterprise information integration. PCS (Process Control System),which has been a mature product and has been widely applied to all kinds of industry, lays a solid foundation for production automation. Management software like ERP is being used in growing numbers in top layer of many enterprises. To gain production agility, the control systems in the bottom layer need timely information from top level. On the other hand, Managers on top level need timely feedbacks from bottom layer for effective decision-making. Now the information bottleneck between the PCS layer and Management layer is exerting a negative effect on enterprise informationization of enterprise. MES is intended to solve this problem. This dissertation is based on the project “Multi-fieldbus and Internet Based Integrated Automation System”of integrated automation center and the sub subject of petrochemical MES of national “eleven five” planning. The major contents and innovation are as follows: 1. Research and application of data integration model. A middleware based data integration model is put forward, which takes full consideration of the characteristics of process industry, the various control system on bottom layer, the reservation of old system and the opening of the system. This model was validated in practical project and brought good results. 2. Research on optimization. Research was made on coal blending optimization according to the characteristics of coal blending and coking. Optimization model based on predictive model on coal blending and coking is developed, which is proved to be effective through simulation. 3. Implementation of coal blending scheduling. A detailed method is given on how to realize coal blending scheduling. Which covers the transferring of instruction, the optimization method and how this method is implemented in control system. Also the whole programming framework is given. 4. Research of MES integration framework. According to the characteristic of process industry and the requirement of MES, a MES integration framework based on MAS and CORBA is put forward. The workflow of the framework is shown through a case.
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