| 摘要 |
The invention relates to a method and system for measuring and analysing an industrial process performance visually from a graphical user interface. The performance is displayed on the user interface graphically as two polygons, in each corner of which there is one piece of performance index information (CSI, VI, SPI, RI, CTI, OI). One of the polygons is a reference polygon (21), and each corner point represents a normalised reference value of one performance index. These reference index values represent ideal operation and performance, which have served as a basis for design. Different performance indexes are also preferably scaled and normalised such that each corner point of the reference polygon is at an equal distance from the centre (origin) of the polygon, and a regular polygon is formed. Overlapping with the reference polygon (21), another polygon, i.e. performance polygon, is displayed, and each corner point of this polygon represents the real value, calculated on the basis of the measurements, of one performance index. The performance indexes of the performance polygon are scaled according to the reference polygon. Thus, the shape of the performance polygon and the location of the corner points in relation to the shape of the reference polygon (21) and the location of the corner points visualise the real performance in relation to the reference performance.
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