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    • 5. 发明申请
    • ASSISTANCE APPARATUS AND METHOD FOR AUTOMATICALLY IDENTIFYING FAILURE TYPES OF A TECHNICAL SYSTEM
    • WO2022128298A1
    • 2022-06-23
    • PCT/EP2021/081986
    • 2021-11-17
    • SIEMENS AKTIENGESELLSCHAFT
    • BRONNER, JohannaBRUHN, Cecilia MargaretaKEHRER, JohannesSCHNURBUSCH, MichaelWEBER, Stefan Hagen
    • G05B23/02
    • Assistance apparatus for automatically identifying failure types of a technical system by analysing monitored time series of more than one different sensor data, each sensor data representing a different parameter of the technical system, comprising at least one processor configured to determine for each sensor data a set of specific temporal courses of first time series of said sensor data of said sensor and assign a symbolic representation to each of the different specific temporal courses, - provide at least one failure pattern, each failure pattern representing one failure type out of several failure types of the technical system and each failure pattern consisting of a failure-type-specific combination of specific temporal courses of the first time series of at least a subset of sensor data in the same segment of time, wherein each specific temporal course is represented by the respective symbolic representation, - obtain more than one monitored time series of sensor data of the technical system, each of them divided into a sequence of time segments, and automatically assign to each time segment a symbolic representations (20, 27) according to the temporal course of the sensor data in the time segment, - calculate a similarity measure for the set of symbolic representations of a selected time interval of the obtained more than one monitored time series of sensor data and all failure patterns, - determine a ranking of the failure pattern depending on decreasing values of the calculated similarity measure, and - output the ranking via a user interface.