The Design And Implementation Of Scheduling Warning System Of Coal Chemical Enterprises

The production scheduling plays a production-commanding role in the enterprises. It controls and coordinates all processes and steps in the production activity. The aims of establishing a production scheduling and production managing system are: to provide informative support on production scheduling and crafts managing; to establish warning mechanism of production system; to set up security system of production; to fully excavate information resources of production system to achieve precise management of production system.The production process of high-intensity has the obvious characteristic of doubling economic profit. Therefore, unqualified products and redundant inputs and emissions, or production devices stagnation caused by out-of-control of production system, will result in severely economic consequence. With the development of enterprises, traditional system of DAS, DCS, PLC and site-oriented control system can no longer satisfy the huge demands of information control and production management.Considering the characteristics of YANKUANG LUNAN CHEMICALS.CO.LTD(LNHG), this thesis designs a production operating and scheduling warning platform based on instant process control according to the basic framework and structure of MES system. This platform mainly has functions of production instant monitoring, on-line cost analysis system, device management and production log management. This research has collected and integrated the data of process control of the production system in LNHG and established a comparatively complete enterprise instant database. This database platform can meet the requirements of data synchronization of production operating and scheduling as well as crafts scheduling and monitoring. The database platform deals with the instant and old monitoring data, thus users can check instant production state at any time and analyze production breakdowns and accurately judge and command immediately. The employment of production scheduling and warning system will make full use of production-site instant data and play the role of DCS, therefore, it strengthens the instant scheduling of production scheduling administrative of LNHG especially the functions of warning and emergency managing. At the same time, this database will improve the management information system of LNHG and provide help to the production instant management of the whole enterprise.