초록 ▼

Methods and systems for fault diagnosis are described. The methods are in particular, although not necessarily exclusively, for the detection of faults in multi-component systems, typically power plant, whose performance is characterised by a series of indirectly measurable performance parameters. T

Methods and systems for fault diagnosis are described. The methods are in particular, although not necessarily exclusively, for the detection of faults in multi-component systems, typically power plant, whose performance is characterised by a series of indirectly measurable performance parameters. The methods proposed are based on "optimisation techniques", involving the optimisation of an objective function to obtain an estimate of performance parameters and operating parameters. In one aspect, a method is proposed that takes account of measurement biases. In another aspect, a method for optimising an objective function is proposed, which adopts a unique Evolution Program approach in which a population of possible solutions is sub-divided into a number of groups.

대표청구항 ▼

Methods and systems for fault diagnosis are described. The methods are in particular, although not necessarily exclusively, for the detection of faults in multi-component systems, typically power plant, whose performance is characterised by a series of indirectly measurable performance parameters. T

Methods and systems for fault diagnosis are described. The methods are in particular, although not necessarily exclusively, for the detection of faults in multi-component systems, typically power plant, whose performance is characterised by a series of indirectly measurable performance parameters. The methods proposed are based on "optimisation techniques", involving the optimisation of an objective function to obtain an estimate of performance parameters and operating parameters. In one aspect, a method is proposed that takes account of measurement biases. In another aspect, a method for optimising an objective function is proposed, which adopts a unique Evolution Program approach in which a population of possible solutions is sub-divided into a number of groups. e configured to be read by said exposure optical system for correcting a white level of the read image information; a carriage configured to move an image reading position of said exposure optical system for reading said shading plate; and a controller configured to move said carriage to position where said shading plate is disposed so as to perform a shading operation before reading the image of the original document, wherein, a case in which images of a plurality of original documents are read, said controller controls the device such that a switched background removal mode is set and the shading operation is performed before an image of a next original document is read when a background removal mode set for reading an image of a preceding original document is switched before the image of the next original document is read. 7. An image forming apparatus, comprising: an image processing device configured to perform predetermined signal processing based on image data input from the image reading device recited in claim 1; and an image forming device configured to form a visible image based on the image signals processed by said image processing device. 8. An image forming apparatus, comprising: an image processing device configured to perform predetermined signal processing based on image data input from the image reading device recited in claim 2; and an image forming device configured to form a visible image based on the image signals processed by said image processing device. 9. An image forming apparatus, comprising: an image processing device configured to perform predetermined signal processing based on image data input from the image reading device recited in claim 5; and an image forming device configured to form a visible image based on the image signals processed by said image processing device. 10. An image forming apparatus, comprising: an image processing device configured to perf