Virtual continuous emission monitoring system

Details Virtual continuous emission monitoring system Virtual continuous emission monitoring system

1995-01-30

1996-08-20

Voeltz, Emanuel T.

Boots, shoes, and leggings

364577, 36457104, 36457105, 364150, 364151, 364DIG1, 395 21, G05B 1302

Patent

active

055485286

ABSTRACT:
A continuous emission monitoring system for a manufacturing plant (10) includes a control system (16) which has associated therewith a virtual sensor network (18). The network (18) is a predictive network that receives as inputs both control values to the plant (10) and also sensor values. The network (18) is then operable to map the inputs through a stored representation of the plant (10) to output a predicted pollutant sensor level. This predicted pollutant sensor level is essentially the prediction of an actual pollutant sensor level that can be measured by a pollutant sensor (14). The network (18) therefore is a substitute for the pollutant sensor (14), thus providing a virtual sensor. The sensor values from the plant (10) are first processed through a sensor validation system (22). The sensor validation system (22) is operable to determine which of the sensors falls outside of acceptable limits and then substitutes therefor a predicted output, such that the inputs to the virtual sensor network (18) are within acceptable limits.

REFERENCES:
patent: 5386373 (1995-01-01), Keeler et al.

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