An integrated architecture for signal validation in power plants

Since the incident at Three-Mile-Island II, computerized plant status display systems, human factors consideration in control room design, and plant monitoring devices available to the plant personnel have seen a tremendous growth. One such operator aid is a plant signal validation system (SVS). The architecture of the SVS consists of several parallel signal processing modules and each module operates independent of the others. The functional coordination of the modules and the decision about the overall signal status are performed by a system executive. The various techniques have been tested using pressurized water reactor (PWR) plant operational data. 7 refs., 6 figs