Patent ID: 7289940
Filing Date: 2007-10-30
Classification: G01D,G05B

Abstract:
1. A method for designing a technical system, including state variables and diagnostic variables that depend on the state variables, comprising: specifying the technical system by a system of equations and with the state variables being the solutions of the system of equations; analyzing a measurement park, incorporating a first measured variable and the first measured variable is measured in the technical system with a prescribed accuracy and depend on the state variables; measuring a second measured variable, which depends on the state variables, in the technical system with a predetermined accuracy; determining sensitivity variables for the first measured variable and/or the second sensitivity variable for the second measured variable; determining the magnitude of the influence which a change in the accuracy of measurement of the first measured variable has at least one selected parameter to determine the first sensitivity variable, and to determine the second sensitivity variable, a determination is made of the magnitude of the influence which the measurement of the second measured variable has at least one selected parameter; changing the measurement park to produce an amended measurement park, the changing depending on the first and/or second sensitivity variable, in such a way that the accuracy of the first measured variable is changed and/or the first measured variable is taken out of the measurement park and/or the second measured variable is added into the measurement park; and outputting a signal indicative of the amended measurement park for performing at least one of the following to design the technical system: selecting which respective state variables and/or diagnostic variables of the technical system to measure, and determining respective measurement accuracies for state variables and/or diagnostic variables of the technical system.