The invention discloses an
expert system and method for judging an emergency state of a
nuclear power plant. The
expert system comprises a real-time
monitoring data module, a manual supplemental information module, a
database system, a human-computer interface, and a
knowledge base system connected with the human-computer interface, wherein the real-time
monitoring data module is connected with an industrial data network of the
nuclear power plant and an online environment
radiation monitoring system, and reads running parameters and environment
radiation monitoring data of units of the
nuclear power plant in real time; the manual information supplementation module is used for selecting an emergency action level or inputting an emergency action level event; the
database system is used for storing real-time monitoring data, manual supplemental
information data and historical emergency state judgment data; and the human-computer interface is connected with the
database system. Compared with the prior art, the
expert system and method has the advantages that knowledge construction and
inference basis of emergency state judgment are carried out in combination with an
emergency plan IC&EAL matrix table established by the
nuclear power plant based on expert knowledge and experience, the expert system for judging the emergency state of the
nuclear power plant is realized, and reliable support is provided for emergency decision-making.