Automatic Identification of Important Batch Events

    公开(公告)号:US20240310817A1

    公开(公告)日:2024-09-19

    申请号:US18212725

    申请日:2023-06-22

    Applicant: ABB Schweiz AG

    CPC classification number: G05B19/41875 G05B19/4183 G05B2219/13011

    Abstract: A method for automatic identification of important batch events for a batch execution alignment algorithm, including receiving historical batch data of a batch process, wherein the historical batch data comprises a plurality of batch executions, and wherein each of the plurality of batch executions comprises a plurality of batch events, indicating a specific event of the batch process, and at least one time series of a process variable, indicating a development of the process variable during the batch process; determining a distance between the at least one time series of the plurality of the batch executions for each of the plurality of batch events; and identifying at least one important batch event for a batch execution alignment algorithm with a smallest distance using the determined distances.

    Determining Appropriate Sequences of Actions to Take Upon Operating States of Industrial Plants

    公开(公告)号:US20240310797A1

    公开(公告)日:2024-09-19

    申请号:US18672276

    申请日:2024-05-23

    Applicant: ABB Schweiz AG

    CPC classification number: G05B13/027

    Abstract: A method for determining an appropriate sequence of actions to take during operation of an industrial plant includes obtaining values of a plurality of state variables that characterize an operational state of the plant (or a part thereof); encoding by at least one trained state encoder network the plurality of state variables into a representation of the operating state of the plant; mapping by a trained state-to-action network the representation of the operating state to a representation of a sequence of actions to take in response to the operating state; and decoding by a trained action decoder network the representation of the sequence of actions to the sought sequence of actions to take.

    Method and System for Industrial Change Point Detection

    公开(公告)号:US20240160160A1

    公开(公告)日:2024-05-16

    申请号:US18455340

    申请日:2023-08-24

    Applicant: ABB Schweiz AG

    CPC classification number: G05B13/027

    Abstract: A method for detecting change points, CPs, in a signal of a process automation system, includes, in an offline learning phase, unsupervised, candidate CPs on at least one offline signal using unsupervised detection method are detected, CPs are selected from the candidate CPs; the selected CPs are provided to a supervised process; in the supervised process, an offline machine-learning (ML) system is trained to refine CPs from the selected CPs using a supervised machine learning method; a training data set for an online ML system is created using the offline ML system by projecting the refined CPs on the signal; the online ML system is trained in a supervised manner, using the created training data set; and after the offline learning phase, CPs are detected using the trained online ML system.

    CONTROLLING TECHNICAL EQUIPMENT THROUGH QUALITY INDICATORS USING PARAMETERIZED BATCH- RUN MONITORING

    公开(公告)号:US20220035810A1

    公开(公告)日:2022-02-03

    申请号:US17500972

    申请日:2021-10-14

    Applicant: ABB SCHWEIZ AG

    Abstract: A control module is adapted to control technical equipment by processing batch-run data from the technical equipment. The control module operates according to parameters that are obtained by a parameter module. The module receives a reference plurality of multi-variate reference time series with data values from sources that are related to the equipment. There are time series with measurement values and time series with data that describes particular manufacturing operations during a batch-run time interval. The module splits the time interval into phases by determining transitions between the particular manufacturing operations, and divides the time series into particular phase-specific partial series. For each phase separately, and for the phase-specific partial series in combination, the module differentiates phase-specific time series into relevant partial time series or non-relevant partial time series and set the parameters accordingly.

    APPARATUS FOR MONITORING A SWITCHGEAR

    公开(公告)号:US20210396584A1

    公开(公告)日:2021-12-23

    申请号:US17467295

    申请日:2021-09-06

    Applicant: ABB Schweiz AG

    Abstract: An apparatus for monitoring a switchgear includes: an input unit; a processing unit; and an output unit. The input unit provides the processing unit with a monitor infra-red image of a switchgear. The processing unit implements a machine learning classifier algorithm to analyse the monitor infra-red image and determine if there is one or more anomalous hot spots in the switchgear. The machine learning classifier algorithm has been trained based on a plurality of different training infra-red images, the plurality of training infra-red images including a plurality of synthetic infra-red images generated from a corresponding plurality of visible images. The output unit outputs information relating to the one or more anomalous hot spots.

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