Patent ID: 7437254

Claim:
A method for implementation in a data processing device for monitoring a permissible integrity of a measured variable of a dynamic system comprising: determining at least one measurement series with respectively a number (n) of measurements (z k ) by at least one sensor device with respectively one predetermined measuring accuracy (Δz k ) and a predetermined actual sensor integrity ({1−p k }) related thereto; determining a number (m) of measuring errors as a function of the predetermined actual sensor integrities ({1−p k }), as a function of the number (n) of measurements and as a function of a predetermined minimum integrity ({1−p 0 }); determining for each measurement of the at least one measurement series of a measurement inaccuracy range (X k ) and, based on the measurement inaccuracy ranges (X 1 , . . . , X n ) and the number (m) of measuring errors, determination of an accuracy range (X 0 ) for a measured variable (x 0 ) to be determined, so that the accuracy range (X 0 ) contains the measured variable (x 0 ) with the predetermined minimum integrity {1−p 0 }; assigning the accuracy range to an accuracy measurement; comparing the accuracy measurement with a threshold value; and issuing a warning as soon as a desired value has been reached, fallen below or exceeded.