ABNORMALITY MONITORING DEVICE AND STATE CHANGE ALARM DEVICE

摘要

PURPOSE: To suitably and quickly decide the presence or absence of the abnormality in response to the state of a monitoring object. CONSTITUTION: The data supplied from a data input part 3 are sent to a time series file 4 and then inputted to a time series data short-time estimation part 2 or a parameter optimization part 3. The part 2 generates a data vector that uses the time series data as its parameter, and the estimated value of the time series data is calculated after a prescribed number of steps by a chaos inference that is defined based on the behavior of an attractor produced in a regenerated space after the data vector is buried The estimated value is sent to an estimated value file 6 and then inputted to an estimation result output part 7. Then the part 7 takes the estimation result out of the file 6 and inputs it to an abnormality monitor part 8. The part 8 compares the estimated value with the measured value. Based on this comparison result, the presence or absence of the abnormality is decided in an observation system.