Patents by Inventor Apala Ray

Apala Ray 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: 12292466
    Abstract: A system and method for detecting location of fault in a cable receives disturbance data from first and second protection relays when one of the first protection relay and/or the second protection relay detects a fault in a section of the cable. The system extracts voltage and current data for each segment in the section using the disturbance data, cable parameters and length of each segment, and determines a fitness value for each segment in the section using the extracted voltage and current data. The system identifies a segment with a lowest fitness value from the fitness value determined for each segment in the section by comparing the fitness value of each segment with the fitness value of subsequent segments in the section and detects the segment with the lowest fitness value as fault location in the cable.
    Type: Grant
    Filed: August 16, 2023
    Date of Patent: May 6, 2025
    Assignee: ABB Schweiz AG
    Inventors: Simi Valsan, Apala Ray, Ketan Kulkarni, Arinjai Gupta
  • Publication number: 20230400499
    Abstract: A system and method for detecting location of fault in a cable receives disturbance data from first and second protection relays when one of the first protection relay and/or the second protection relay detects a fault in a section of the cable. The system extracts voltage and current data for each segment in the section using the disturbance data, cable parameters and length of each segment, and determines a fitness value for each segment in the section using the extracted voltage and current data. The system identifies a segment with a lowest fitness value from the fitness value determined for each segment in the section by comparing the fitness value of each segment with the fitness value of subsequent segments in the section and detects the segment with the lowest fitness value as fault location in the cable.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 14, 2023
    Applicant: ABB Schweiz AG
    Inventors: Simi Valsan, Apala Ray, Ketan Kulkarni, Arinjai Gupta
  • Patent number: 10477372
    Abstract: In aspects, the present invention discloses a method for communicating with a plurality of field devices using a remote terminal unit. The plurality of field devices includes a first set of field devices and a second set of field devices capable of communicating using a first and second wireless communication protocols respectively. The method comprises scanning for a beacon message from a first field device, determining a corresponding wireless communication protocol associated from the first field device, identifying a first set of configuration blocks for communicating with the first field device based on a configuration schema file and the corresponding wireless communication protocol of the first field device, and building a protocol stack for use with a radio front end from the one or more radio front ends using the first set of configuration blocks, for communicating with the first field device from the plurality of field devices.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: November 12, 2019
    Assignee: ABB Schweiz AG
    Inventors: Apala Ray, Deepaknath Tandur, Pradnya Gaonkar, Mallikarjun Kande, Peter Somdecerff, Raymond Crow
  • Patent number: 10362500
    Abstract: A method for detecting the status of a mesh node in a wireless mesh network, wherein a gateway is building up a vector over time by combining active detection, passive detection and binary tests on anomaly metrics and wherein the status of the mesh node is regarded as misbehaving when the vector reaches a certain level.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 23, 2019
    Assignee: ABB Schweiz Ag
    Inventors: Judith Rossebø, Amalavoyal Chari, Apala Ray, Mohammad Chowdhury
  • Publication number: 20170251387
    Abstract: A method for detecting the status of a mesh node in a wireless mesh network, wherein a gateway is building up a vector over time by combining active detection, passive detection and binary tests on anomaly metrics and wherein the status of the mesh node is regarded as misbehaving when the vector reaches a certain level.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 31, 2017
    Inventors: Judith Rossebø, Amalavoyal Chari, Apala Ray, Mohammad Chowdhury