Patent ID: 11867593
Assignee: ROBERT BOSCH GMBH
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A non-transitory machine-readable memory medium on which is stored a computer program for detecting anomalies in a plurality of sensor recordings of a technical system, the computer program, when executed by a computer, causing the computer to perform the following steps:
ascertaining a first anomalous value which, with regard to all sensor recordings of the plurality of sensor recordings, characterizes whether or not an anomaly is present wherein the first anomalous value is a first probability or first probability density value, wherein the first probability or first probability density value characterizes how probable a joint occurrence of all sensor recordings of the plurality of sensor recordings is;
ascertaining a plurality of second anomalous values, each second anomalous value from the plurality of second anomalous values corresponding to a different respective sensor recording of the plurality of sensor recordings, and with regard to the respective sensor recording characterizing whether or not an anomaly is present in other sensor recordings of the plurality of sensor recordings, the second anomalous value being a second probability or second probability density value, the second probability or second probability density value characterizing how probable an occurrence of the plurality of sensor recordings except for the respective sensor recording is;
detecting an anomaly in a sensor recording of the plurality of sensor recordings when all of: i) the first anomalous value characterizes the presence of an anomaly, and ii) the second anomalous value corresponding to the sensor recording characterizes no anomaly, and iii) the second anomalous value corresponding to the sensor recording differs beyond a predefined extent from other second anomalous values of the plurality of second anomalous values;
generating an activation signal based on the detected anomaly; and
activating an actuator or display device of the technical system using the activation signal.