Patent classifications
G05B23/0254
Failure prediction model generating apparatus and method thereof
A failure prediction model generating apparatus and method thereof are provided. The failure prediction model generating apparatus includes a memory configured to store a plurality of failure prediction models derived previously; and a processor configured to predict a failure of the plant, wherein the processor is configured to collect data measured from the plant, select at least one failure prediction model from among the plurality of failure prediction models using the collected data, and predict a failure of the plant using the selected failure prediction model.
AUTOMATED REFINEMENT OF A LABELED WINDOW OF TIME SERIES DATA
A device obtains a set of time series data monitored on a machine and further obtains first label information indicating a first time window in the time series data. The device determines a first probabilistic model, describing dynamics of the time series data inside the first time window, and a second probabilistic model describing dynamics of the time series data adjacent to the first time window. Based on the first and second probabilistic models, the device determines a first part of the time series data that is estimated to match the first probabilistic model and a second part of the time series data that is estimated to match the second probabilistic model, e.g., using a hidden Markov model. The device then determines second label information indicating a second time window which includes the first part of the time series data and excludes the second part of the time series data.
MACHINE LEARNING APPROACH FOR FATIGUE LIFE PREDICTION OF ADDITIVE MANUFACTURED COMPONENTS ACCOUNTING FOR LOCALIZED MATERIAL PROPERTIES
A method and a system for fatigue life prediction of additive manufactured components accounting for localized material properties. The method and the system is employed for prediction of fatigue life properties of an additive manufactured element, with a data collection step in which several data points for maximum stress vs. cycles to failure for different given processing steps of the element are collected, with a training step in which a Machine Learning system is trained with the collected data, and with an evaluation step in which the trained Machine Learning system is confronted with actual processing steps and used to predict the fatigue life properties of the element.
EVENT ANALYTICS IN MODULAR INDUSTRIAL PLANTS
Systems and methods for event analytics in a modular industrial plant are provided. A method includes: monitoring events in a module of the modular industrial plant during a predetermined time interval; generating a module fingerprint based on the monitored events occurring in the module during the predetermined time interval; and performing module-based event analytics based on the generated module fingerprint.
System and methods for generating fault indications for an additive manufacturing process based on a probabilistic comparison of the outputs of multiple process models to measured sensor data
Generating fault indications for an additive manufacturing machine based on a comparison of the outputs of multiple process models to measured sensor data. The method receiving sensor data from the additive manufacturing machine during manufacture of at least one part. Models are selected from a model database, each model generating expected sensor values for a defined condition. Difference values are computed between the received sensor data and an output of each of the models. A probability density function is computed, which defines, for each of the models, a likelihood that a given difference value corresponds to each respective model. A probabilistic rule is applied to determine, for each of the models, a probability that the corresponding model output matches the received sensor data. An indicator is output of a defined condition corresponding to a model having the highest match probability.
DIAGNOSTIC TOOL TO TOOL MATCHING AND COMPARATIVE DRILL-DOWN ANALYSIS METHODS FOR MANUFACTURING EQUIPMENT
A method includes receiving first data associated with measurements taken by a sensor during a first manufacturing procedure of a manufacturing chamber. The method further includes receiving second data. The second data includes reference data associated with the first data. The method further includes providing the first and second data to a comparison model. The method further includes receiving a similarity score from the comparison model, associated with the first and second data. The method further includes performance of a corrective action in view of the similarity score.
SUBSYSTEM-LEVEL MODEL-BASED DIAGNOSIS
One embodiment provides a method and a system for diagnosing faults in a physical system. During operation, the system can obtain a model of the physical system comprising a plurality of components and can perform a structural analysis on the model to decompose the model into multiple independent subsystem models. A subsystem model corresponds to a subsystem comprising a subset of the plurality of components. The system can then perform, in parallel, a fault-diagnosis operation on each subsystem based on the corresponding subsystem model and can generate a diagnostic output indicating one or more components within the physical system being faulty based on outcomes of the fault-diagnosis operation on each subsystem.
VEHICLE FAULT DETECTION SYSTEM AND METHOD UTILIZING GRAPHICALLY CONVERTED TEMPORAL DATA
A vehicle fault detection system including at least one sensor configured for coupling with a vehicle system, a vehicle control module coupled to the at least one sensor, and being configured to receive at least one time series of numerical sensor data from the at least one sensor, at least one of the at least one time series of numerical sensor data corresponds to a respective system parameter of the vehicle system being monitored, generate a graphical representation for the at least one time series of numerical sensor data to form an analysis image of at least one system parameter, and detect anomalous behavior of a component of the vehicle system based on the analysis image, and a user interface coupled to the vehicle control module, the user interface being configured to present to an operator an indication of the anomalous behavior for the component of the vehicle system.
OPERATING INDEX PRESENTING DEVICE, OPERATING INDEX PRESENTING METHOD, AND PROGRAM
A demand prediction unit predicts a time series of demand values related to a predetermined prediction period using a predictive model. The predictive model is a learned model learned to output a demand value of an energy source by inputting an operation plan value of a plant and a predicted value related to an environment of the plant. An optimizing unit specifies operating indices of a plant that satisfy a plurality of demand values and satisfy a desired condition for each time related to the predicted time series of demand values. A presentation unit presents information related to the time series of operating indices related to the prediction period.
ABNORMALITY DETERMINATION APPARATUS, LEARNING APPARATUS AND ABNORMALITY DETERMINATION METHOD
According to one embodiment, a processing circuit classifies a time-series data corresponding to process amounts generated in a target facility into groups. For each of groups, the processing circuit applies time-series data included in the group to a first auto-encoder, which differs depending upon each group, and outputs time-series data. The processing circuit applies input difference data, which are based on output time-series data on the process amounts and the input time-series data, to a single second auto-encoder, and outputs difference data. The processing circuit determines an abnormality of the target facility, based on the comparison between addition data which are based on the output difference data and the output time-series data, and the input time-series data.