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US 6,865,511 B2Granted
Process and device for evaluating the performance of a process control system
AssigneeABB AB
InventorsDonald K. Frerichs, Roman P. Chaws
Life of this patent
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AssigneeABB AB
InventorsDonald K. Frerichs, Roman P. Chaws
Estimating the term…
A preferred process for evaluating the performance of a process control system comprises generating a first set of data comprising a plurality of measurements of a first parameter controlled by the process control system and generating a second set of data comprising a plurality of measurements of a second parameter controlled by the process control system. A preferred process also comprises calculating a first statistical index from the first set of data using a statistical process control method, calculating a second statistical index from the second set of data using the statistical process control method, and combining the first and second statistical indices to produce a performance index representative of the performance of the process control system at controlling the first and second parameters.
A process for evaluating the performance of a system, comprising:
A device for evaluating the performance of a system, comprising an input/output interface for communicating with the system, and a central processing unit electrically coupled to the input/output interface and comprising a processor electrically coupled to the input/output interface, a memory-storage device electrically coupled to the processor, a power supply electrically coupled to the processor and the memory-storage device, and a set of computer-executable instructions stored on the memory-storage device for:
Dependencies are inferred from the claim text.