Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Communication and supporting structures for integration of decision making at different levels

The aim of the CHEM project was to develop and implement advanced Decision Support Systems (DSS) for process monitoring, data and event analysis, and operation support in industrial processes. The systems are synergistic integration of innovative software tools, which improve the safety, product quality and operation reliability as well as reduce the economic losses due to faulty states, mainly in refining, chemical and petrochemical processes.

The CHEM applications consist of integrated sets of software toolboxes that provide robust detection and diagnosis of process problems in real-time. The systems assist operators in assessing process status and responding to abnormal events. The project provides a flexible architecture and a methodology in order to facilitate the development of such applications on many processes.

The scheduling systems should be able to acquire and process the data provided online by the real process in the plant. Such information must be evaluated and taken into account in order to re-schedule.

This toolbox provides all the data structures required in the scheduling system, including functions as persistence and communication. The persistence function will be carried out using a SQL database whilst the communication function will be carried out by means of XML message structures and XML-RPC calls.

ISA S88 information hierarchy will be used as a representation of the information needed in the scheduling system. The use of the ISA S88 standard allows and easy communication with the control systems and easier integration with other systems that use the same standard for their information repositories.

The use of the ISA S88 structure allows also the use of the same data model to store both control and scheduling information. The most detailed level of information can be used bye the control system whilst the less detailed and generic information will be used by the scheduling system. This last point assures the coherence between the scheduling and the control toolboxes.

Reported by

Univ. Politecnica de Catalunya, Chem. Eng. Dept.
Av. Diagonal 647, G2
08028 Barcelona
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