Patents by Inventor Chetan GUPTA

Chetan GUPTA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11200137
    Abstract: Aspects of the present disclosure are directed to systems and methods for determining execution of failure prediction models and duration prediction models for a sensor system. Systems and methods can involve receiving streaming data from one or more sensors and for a failure prediction model processing the streaming data indicating a predicted failure with a probability higher than a threshold, obtaining a duration of the predicted failure from a duration prediction model configured to predict durations of detected failures based on the streaming data; deactivating the failure prediction model when the predicted failure occurs; and determining a time to reactivate the failure prediction model based on the obtained duration of the predicted failure.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 14, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Serita, Chi Zhang, Chetan Gupta, Qiyao Wang, Huijuan Shao
  • Publication number: 20210374500
    Abstract: Example implementations described herein involve systems and methods for generating an ensemble of deep learning or neural network models, which can involve, for a training set of data, generating a plurality of model samples for the training set of data, the plurality of model samples generated from deep learning or neural network methods; and aggregating output of the model samples to generate an output of the ensemble models.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Inventors: Dipanjan GHOSH, Maria Teresa GONZALEZ DIAZ, Mahbubul ALAM, Ahmed FARAHAT, Chetan GUPTA, Lijing WANG
  • Patent number: 11120383
    Abstract: A system is provided for operator profiling based on pre-installed sensor measurement. In example implementations, the system extracts a set of segmented time series data associated with a unit of operation and build models which distinguish the operators by machine learning algorithms. The system uses the models to output the evaluation score assigned to each operation, identify the key movements for skilled/non-skilled operators, and recommends appropriate actions to improve operation skill or adjust the scheduling of the operators.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 14, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Serita, Haiyan Wang, Chetan Gupta
  • Publication number: 20210279596
    Abstract: Example implementations involve a system for a system and method for Predictive Maintenance using Trace Norm Generative Adversarial Networks. Such example implementations can involve providing generated sensor data and real sensor data to a first network and to a second network, the first network configured to enforce trace norm minimization of the second network, the second network configured to distinguish between the generated sensor data and the real sensor data, the first network involving a subset of layers from the second network, and the second network integrated into a generative adversarial network.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 9, 2021
    Inventors: Shuai ZHENG, Chetan GUPTA
  • Publication number: 20210279597
    Abstract: Example implementations described herein involve a system for Predictive Maintenance using Discriminant Generative Adversarial Networks, and can involve providing generated sensor data and real sensor data to a first network and to a second network, the first network configured to enforce a discriminant loss objective of the second network, the second network configured to distinguish between the generated sensor data and the real sensor data, the first network including a subset of layers from the second network, the real sensor data including pairs of real sensor data and labels, the second network integrated into a generative adversarial network (GAN); training the machine health classification model from the output of the first network using the provided generated sensor data and the real sensor data, the output of the first network including feature vectors; and deploying the machine health classification model with the first network.
    Type: Application
    Filed: October 8, 2020
    Publication date: September 9, 2021
    Inventors: Shuai ZHENG, Chetan GUPTA
  • Patent number: 11099551
    Abstract: Example implementations described herein involve a system for maintenance predictions generated using a single deep learning architecture. The example implementations can involve managing a single deep learning architecture for three modes including a failure prediction mode, a remaining useful life (RUL) mode, and a unified mode. Each mode is associated with an objective function and a transformation function. The single deep learning architecture is applied to learn parameters for an objective function through execution of a transformation function associated with a selected mode using historical data. The learned parameters of the single deep learning architecture can be applied with streaming data from with the equipment to generate a maintenance prediction for the equipment.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 24, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Kosta Ristovski, Chetan Gupta, Ahmed Farahat, Onur Atan
  • Publication number: 20210248444
    Abstract: In example implementations described herein, there are systems and methods for processing sensor data from an equipment over a period of time to generate sensor time series data; processing the sensor time series data in a kernel weight layer configured to generate weights to weigh the sensor time series data; providing the weighted sensor time series data to fully connected layers configured to conduct a correlation on the weighted sensor time series data with predictive maintenance labels to generate an intermediate predictive maintenance label; and providing the intermediate predictive maintenance label to an inversed kernel weight layer configured to inverse the weights generated by the kernel weight layer, to generate a predictive maintenance label for the equipment.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 12, 2021
    Inventors: Qiyao WANG, Haiyan WANG, Chetan GUPTA, Hamed KHORASGANI, Huijuan SHAO, Aniruddha Rajendra RAO
  • Patent number: 11049060
    Abstract: Example implementations described herein involve systems and methods involving a plurality of sensors monitoring one or more processes, the sensors providing sensor data, which can include determining a probability map of the sensor data from a database and a functional relationship between key performance indicators (KPIs) of the one or more processes and the sensor data; executing a search on the probability map to determine constrained and continuous ranges for the sensor data that optimize KPIs for the one or more processes based on the functional relationship; and generating a recommendation for the one or more processes that fit within the constrained and continuous range of the sensor data.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 29, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Qiyao Wang, Haiyan Wang, Susumu Serita, Takashi Saeki, Chetan Gupta
  • Patent number: 11042145
    Abstract: Example implementations described herein are directed to systems and methods for predictive maintenance with health indicators using reinforcement learning. An example implementation includes a method to receive sensor data, operational condition data, and failure event data and generate a model to determine health indicators that indicate equipment performance based on learned policies, state values, and rewards. The model is applied to external sensor readings and operating data for a piece of equipment to output a recommendation based on the model.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 22, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Chi Zhang, Chetan Gupta, Ahmed Khairy Farahat, Kosta Ristovski, Dipanjan Ghosh
  • Patent number: 11037573
    Abstract: In some examples, a system may receive from a device, speech sound patterns corresponding to a voice input related to equipment. Further, the system may determine an identity of a person associated with the device, and may identify the equipment related to the voice input. Using at least one of the received speech sound patterns or a text conversion of the speech sound patterns, along with an equipment history of the identified equipment, as input to one or more machine learning models, the system may determine, at least partially, an instruction related to the equipment. Additionally, the system may send, to the device, the instruction related to the equipment as an audio file for playback on the device.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 15, 2021
    Assignee: HITACHI, LTD.
    Inventors: Adriano Siqueira Arantes, Marcos Vieira, Chetan Gupta, Ahmed Khairy Farahat, Maria Teresa Gonzalez Diaz
  • Patent number: 11031009
    Abstract: Example implementations involve a framework for knowledge base construction of components and problems in short texts. The framework extracts domain-specific components and problems from textual corpora such as service manuals, repair records, and public Q/A forums using: 1) domain-specific syntactic rules leveraging part of speech tagging (POS), and 2) a neural attention-based seq2seq model which tags raw sentences end-to-end identifying components and their associated problems. Once acquired, this knowledge can be leveraged to accelerate the development and deployment of intelligent conversational assistants for various industrial AI scenarios (e.g., repair recommendation, operations, and so on) through better understanding of user utterances. The example implementations give better tagging accuracy on various datasets outperforming well known off-the-shelf systems.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 8, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Walid Shalaby, Chetan Gupta, Maria Teresa Gonzalez Diaz, Adriano Arantes
  • Publication number: 20210148791
    Abstract: Example implementations described herein involve systems and methods for conducting feature extraction on a plurality of templates associated with vibration sensor data for a moving equipment configured to conduct a plurality of tasks, to generate a predictive maintenance model for the plurality of tasks, the predictive maintenance model configured to provide one or more of fault detection, failure prediction, and remaining useful life (RUL) estimation.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Inventors: Wei HUANG, Chetan GUPTA, Ahmed Khairy FARAHAT
  • Publication number: 20210086361
    Abstract: Example implementations described herein involve an anomaly detection method for robotic apparatuses such as robotic arms using vibration data. Such example implementations can involve fluctuation-based anomaly detection (e.g., based on their fluctuations in the vibration measurements) and/or frequency spectrum-based anomaly detection (e.g., based on their natural fluctuations in the vibration measurements).
    Type: Application
    Filed: September 19, 2019
    Publication date: March 25, 2021
    Inventors: Wei HUANG, Hideaki SUZUKI, Ahmed Khairy FARAHAT, Chetan GUPTA
  • Publication number: 20210055719
    Abstract: Example implementations involve a system for Predictive Maintenance using Generative Adversarial Networks for Failure Prediction. Through utilizing three processes concurrently and training them iteratively with data-label pairs, example implementations described herein can thereby generate a more accurate predictive maintenance model than that of the related art. Example implementations further involve shared networks so that the three processes can be trained concurrently while sharing parameters with each other.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: Shuai ZHENG, Ahmed Khairy FARAHAT, Chetan GUPTA
  • Publication number: 20210056484
    Abstract: Example implementations described herein involve methods and systems with one or more machines on a factory floor. Example implementations involve, in response to received orders, determining an initial scheduling policy for internal processes to meet the order and a due date policy for the order; a) executing a simulation involving scheduling decisions and due date quotations based on the initial scheduling policy and the due date policy; b) executing a machine learning process on the simulation results to update the scheduling policy and the due date policy by evaluating the scheduling decisions and the due date quotations according to a scoring function which is common for evaluating the scheduling decisions and evaluating the due date quotations; iteratively executing a) and b) until a finalized scheduling policy and the due date policy is determined; and output the finalized scheduling policy and the due date policy in response to the order.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: Susumu SERITA, Chetan Gupta
  • Publication number: 20210048809
    Abstract: Example implementations described herein involve, for data having incomplete labeling to generate a plurality of predictive maintenance models, processing the data through a multi-task learning (MTL) architecture including generic layers and task specific layers for the plurality of predictive maintenance models configured to conduct tasks to determine outcomes for one or more components associated with the data, each task specific layer corresponding to one of the plurality of predictive maintenance models; the generic layers configured to provide, to the task specific layers, associated data to construct each of the plurality of predictive maintenance models; and executing the predictive maintenance models on subsequently recorded data.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 18, 2021
    Inventors: Chi ZHANG, Ahmed Khairy FARAHAT, Chetan GUPTA, Karan AGGARWAL
  • Patent number: 10901832
    Abstract: Example implementations described herein involve a system for maintenance recommendation based on data-driven failure prediction. The example implementations can involve estimating the probability of having a failure event in the near future given sensor measurements and events from the equipment, and then alerts the system user or maintenance staff if the probability of failure exceeds a certain threshold. The example implementations utilize historical failure cases along with the associated sensor measurements and events to learn a group of classification models that differentiate between failure and non-failure cases. In example implementations, the system then chooses the optimal model for failure prediction such that the overall cost of the maintenance process is minimized.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: January 26, 2021
    Assignee: HITACHI, LTD.
    Inventors: Ahmed Khairy Farahat, Chetan Gupta, Kosta Ristovski
  • Publication number: 20200387135
    Abstract: Example implementations involve fault detection and isolation in industrial networks through defining a component as a combination of measurements and parameters and define an industrial network as a set of components connected with different degrees of connections (weights). Faults in industrial network are defined as unpermitted changes in component parameters. Further, the fault detection and isolation in industrial networks are formulated as a node classification problem in graph theory. Example implementations detect and isolate faults in industrial networks through 1) uploading/learning network structure, 2) detecting component communities in the network, 3) extracting features for each community, 4) using the extracted features for each community to detect and isolate faults, 5) at each time step, based on the faulty components provide maintenance recommendation for the network.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Inventors: Hamed KHORASGANI, Chetan GUPTA, Ahmed Khairy FARAHAT, Arman HASANZADEHMOGHIMI
  • Publication number: 20200387387
    Abstract: Example implementations described herein are directed to a meta-data processing system that supports the creation and deployment of the Analytical Solution Modules in development of industrial analytics. The example implementations described herein can involve a first system configured to be directed to a data scientist for receiving flow and operator definitions to generate an analytics library, which is provided to a second system configured to be directed to a domain expert for applying the analytics library to generate analytics modules to be executed on data input to the second system.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Inventors: Koichiro IIJIMA, Song WANG, Hideki NAKAMURA, Chetan GUPTA
  • Publication number: 20200380388
    Abstract: Example implementations described herein are directed to constructing prediction models and conducting predictive maintenance for systems that provide sparse sensor data. Even if only sparse measurements of sensor data are available, example implementations utilize the inference of statistics with functional deep networks to model prediction for the systems, which provides better accuracy and failure prediction even if only sparse measurements are available.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Qiyao WANG, Shuai ZHENG, Ahmed FARAHAT, Susumu SERITA, Takashi SAEKI, Chetan GUPTA