Patents by Inventor Kari Saarinen

Kari Saarinen 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).

  • Publication number: 20210025781
    Abstract: A mechanism and method for deciding whether a bearing is faulty or not. The method is performed by a controller. The method includes obtaining a signal representing vibrations of the bearing. The vibrations are obtained during operation of the bearing. The method includes applying signal segmentation to the signal in at least two frequency bands in order to identify any shock pulse in the signal. The method includes deciding whether the bearing is faulty or not depending on whether or not the signal has any shock pulse.
    Type: Application
    Filed: October 6, 2017
    Publication date: January 28, 2021
    Inventors: Kari Saarinen, Jarno Kansanaho
  • Patent number: 10539499
    Abstract: A method for detecting a fault in a robot joint includes the steps of: performing a first torque measurement at the robot joint to thereby obtain a first set of torque values; calculating a first distribution characteristic reflecting a distribution of the first set of torque values; performing a second torque measurement at the robot joint to thereby obtain a second set of torque values; calculating a second distribution characteristic reflecting a distribution of the second set of torque values; and comparing the first and the second distribution characteristics to determine whether a fault is present or not. A difference in the distributions of torque measurements is a robust fault indicator that makes use of the repetitive behavior of the system.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: January 21, 2020
    Assignee: ABB Research Ltd.
    Inventors: Shiva Sander-Tavallaey, Kari Saarinen, Hans Andersson, Andre Carvalho Bittencourt
  • Patent number: 10533928
    Abstract: There is provided mechanisms for predicting remaining useful lifetime of a bearing of an electric podded azimuth thruster. A method is performed by a controller. The method includes obtaining operational conditions of the bearing. The method includes predicting the remaining useful lifetime of the bearing using the operational conditions. The lifetime of the bearing is divided in three separate phases. The remaining useful lifetime of the bearing is predicted differently in the three separate phases.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 14, 2020
    Assignee: ABB Schweiz AG
    Inventors: Kari Saarinen, Shiva Sander-Tavallaey
  • Patent number: 10422833
    Abstract: Systems and methods for classifying power line events are disclosed. Classifying power line events may include receiving measured data corresponding to a signal measured on a power line, such as proximate a substation bus or along the power line, determining from the measured data that the power line event has occurred, extracting at least one event feature from the measured data, and determining at least partially from the at least one event feature at least one probable classification for the power line event. The systems may include an Intelligent Electronic Device (IED) connected to the power line and a processor linked to the IED.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: September 24, 2019
    Assignee: ABB Research Ltd.
    Inventors: Kari Saarinen, Mirrasoul Mousavi, James Stoupis, John McGowan
  • Publication number: 20190226944
    Abstract: There is provided mechanisms for predicting remaining useful lifetime of a bearing of an electric podded azimuth thruster. A method is performed by a controller. The method includes obtaining operational conditions of the bearing. The method includes predicting the remaining useful lifetime of the bearing using the operational conditions. The lifetime of the bearing is divided in three separate phases. The remaining useful lifetime of the bearing is predicted differently in the three separate phases.
    Type: Application
    Filed: October 6, 2017
    Publication date: July 25, 2019
    Inventors: Kari Saarinen, Shiva Sander-Tavallaey
  • Patent number: 10324132
    Abstract: Systems and methods for power line event zone identification are disclosed. Power line event zone identification may include receiving measured data corresponding to a signal measured on a power line, determining from the measured data that a power line event has occurred, and identifying a probable one of at least two monitoring zones in which the power line event occurred. The at least two monitoring zones may be defined for an Intelligent Electronic Device (IED). The systems may include an IED connected to the power line and a processor linked to the IED.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: June 18, 2019
    Assignee: ABB Inc.
    Inventors: Kari Saarinen, Mirrasoul Mousavi, James Stoupis, John McGowan
  • Patent number: 10207801
    Abstract: A method for inspecting a solar panel of a solar power station is performed in a controller for an unmanned aerial vehicle, UAV, and includes the steps of: receiving an inspection request for a subset of the solar panels navigating, in a first stage, using radio signals, the UAV to an initial location in a vicinity of a particular solar panel of the subset of solar panels; positioning, in a second stage, the UAV using at least one near field sensor of the UAV; and capturing, using the infrared camera, an image of the particular solar panel.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: February 19, 2019
    Assignee: ABB Schweiz AG
    Inventors: Winston Garcia-Gabin, Bengt Stridh, Elina Vartiainen, Kari Saarinen, Per-Erik Modén, Veronika Domova
  • Publication number: 20170349279
    Abstract: A method for inspecting a solar panel of a solar power station is performed in a controller for an unmanned aerial vehicle, UAV, and includes the steps of: receiving an inspection request for a subset of the solar panels navigating, in a first stage, using radio signals, the UAV to an initial location in a vicinity of a particular solar panel of the subset of solar panels; positioning, in a second stage, the UAV using at least one near field sensor of the UAV; and capturing, using the infrared camera, an image of the particular solar panel.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 7, 2017
    Inventors: Winston GARCIA-GABIN, Bengt STRIDH, Elina VARTIAINEN, Kari SAARINEN, Per-Erik MODÉN, Veronika DOMOVA
  • Patent number: 9742181
    Abstract: A method of handling a reclosing operation of a recloser in a power system subject to a fault. The method includes a) determining a fault current for each electrical phase, the fault current being determined by a difference between measured current values and a sinusoidal model of a current prior to the fault, bI) calculating a respective sinusoidal model of the fault current for each electrical phase using samples taken before the fault, bII) selecting two sinusoidal models with the largest amplitude to represent faulted electrical phases, bIII) calculating a plurality of sub-features based on the two models, and bIV) determining a main feature value based on the plurality of sub-features, bV) determining, based on the main feature value, whether a temporary fault is present, and c) providing control instructions that the recloser is to reclose in the event that the fault is a temporary fault.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: August 22, 2017
    Assignee: ABB Schweiz AG
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Patent number: 9692258
    Abstract: A method of classifying an event in an electrical grid. The method utilizes event related data provided by intelligent electronic devices and provides the operator with a single conclusion classifying the event, thereby helping the operator to determine the mitigation actions. The method includes receiving individual event related data from each intelligent electronic device, and determining whether the event is a fault or a non-fault based on probabilistic methods applied to the event related data. A corresponding system is also presented herein.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: June 27, 2017
    Assignee: ABB Research Ltd.
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Publication number: 20170110872
    Abstract: A method of handling a reclosing operation of a recloser in a power system subject to a fault. The method includes a) determining a fault current for each electrical phase, the fault current being determined by a difference between measured current values and a sinusoidal model of a current prior to the fault, bI) calculating a respective sinusoidal model of the fault current for each electrical phase using samples taken before the fault, bII) selecting two sinusoidal models with the largest amplitude to represent faulted electrical phases, bIII) calculating a plurality of sub-features based on the two models, and bIV) determining a main feature value based on the plurality of sub-features, bV) determining, based on the main feature value, whether a temporary fault is present, and c) providing control instructions that the recloser is to reclose in the event that the fault is a temporary fault.
    Type: Application
    Filed: April 21, 2015
    Publication date: April 20, 2017
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Patent number: 9217775
    Abstract: Systems and methods for characterizing a device that operated to clear a fault in a power line, such as a power distribution system feeder, are disclosed. Characterizing the device may include receiving measured data corresponding to a current measured along the feeder proximate a substation bus, determining from the measured data that a fault has occurred in at least one phase and has been cleared, subtracting reference data from the measured data to estimate residual fault data, and estimating from the residual fault data a characteristic of the device that operated to clear the fault. The systems may include an Intelligent Electronic Device (IED) and a processor linked to the IED.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: December 22, 2015
    Assignee: ABB Research Ltd.
    Inventors: Mirrasoul Mousavi, Kari Saarinen, James Stoupis, John McGowan
  • Patent number: 9202168
    Abstract: A method of identifying at least one event zone subject to an event in a substation environment of an electrical grid. Thereby, data from multiple intelligent electronic devices can be synthesized in real-time whereby an operator can be presented with a single conclusion describing the event attributes thereby helping the operator to determine the mitigation actions as needed. The method includes receiving first event related data from the intelligent electronic devices, and based on the first event related data, determining whether the at least one monitoring zone subject to the event is a primary monitoring zone of at least one of the intelligent electronic devices or a non-primary monitoring zone for all of the intelligent electronic devices using ensemble decision making and probabilistic methods. It is also presented a system for carrying out the method.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 1, 2015
    Assignee: ABB Research Ltd.
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Patent number: 9146175
    Abstract: The present invention relates to a method and a device for detecting abnormal changes in play in a transmission unit configured to transfer rotational movements of a motor, having a speed of rotation that depends on a torque reference signal (Tref), to a movable mechanical unit.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: September 29, 2015
    Assignee: ABB Research Ltd
    Inventors: Kari Saarinen, Shiva Sander-Tavallaey
  • Publication number: 20150160296
    Abstract: A method of classifying an event in an electrical grid. The method utilises event related data provided by intelligent electronic devices and provides the operator with a single conclusion classifying the event, thereby helping the operator to determine the mitigation actions. The method includes receiving individual event related data from each intelligent electronic device, and determining whether the event is a fault or a non-fault based on probabilistic methods applied to the event related data. A corresponding system is also presented herein.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 11, 2015
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Publication number: 20140222352
    Abstract: A method for detecting a fault in a robot joint includes the steps of: performing a first torque measurement at the robot joint to thereby obtain a first set of torque values; calculating a first distribution characteristic reflecting a distribution of the first set of torque values; performing a second torque measurement at the robot joint to thereby obtain a second set of torque values; calculating a second distribution characteristic reflecting a distribution of the second set of torque values; and comparing the first and the second distribution characteristics to determine whether a fault is present or not. A difference in the distributions of torque measurements is a robust fault indicator that makes use of the repetitive behavior of the system.
    Type: Application
    Filed: March 25, 2014
    Publication date: August 7, 2014
    Inventors: Shiva Sander-Tavallaey, Kari Saarinen, Hans Andersson, Andre Carvalho Bittencourt
  • Publication number: 20130198124
    Abstract: A method of identifying at least one event zone subject to an event in a substation environment of an electrical grid. Thereby, data from multiple intelligent electronic devices can be synthesized in real-time whereby an operator can be presented with a single conclusion describing the event attributes thereby helping the operator to determine the mitigation actions as needed. The method includes receiving first event related data from the intelligent electronic devices, and based on the first event related data, determining whether the at least one monitoring zone subject to the event is a primary monitoring zone of at least one of the intelligent electronic devices or a non-primary monitoring zone for all of the intelligent electronic devices using ensemble decision making and probabilistic methods. It is also presented a system for carrying out the method.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 1, 2013
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Publication number: 20130194299
    Abstract: A method for providing a navigation tool of a user interface for an industrial control system. The control system is arranged with a plurality of process graphics including one or more software objects. The software objects are arranged in hierarchical groups each representing a process, part-process or an equipment, in which materials are moved and/or processed in a predetermined order. The navigation tool includes a graphic image or map showing the plurality of process graphics symbolically arranged as a plurality of nodes. Each node is spatially arranged at a given distance from the centre of the map according to a hierarchical relationship between the process graphics, and the map is displayed superimposed on top of the process graphic currently displayed on the workstation.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 1, 2013
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Patent number: 8285498
    Abstract: The subject of the invention is a method for detection and automatic identification of defects in rolling bearings applicable in diagnosing rolling bearings and detecting damage in a very early stage of its occurrence. The inventive method in which the vibrations of a bearing in operation are measured, the measured analogue signals are converted to digital data which are filtered and next shock pulses are detected, whereupon defects present in the tested bearing or bearings are identified, characterized in that the detection of shock pulses is done using shock pulse likelihood ratio (Ms).
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 9, 2012
    Assignee: ABB Research Ltd.
    Inventors: Kari Saarinen, Jaroslaw Nowak
  • Publication number: 20120010830
    Abstract: Systems and methods for classifying power line events are disclosed. Classifying power line events may include receiving measured data corresponding to a signal measured on a power line, such as proximate a substation bus or along the power line, determining from the measured data that the power line event has occurred, extracting at least one event feature from the measured data, and determining at least partially from the at least one event feature at least one probable classification for the power line event. The systems may include an Intelligent Electronic Device (IED) connected to the power line and a processor linked to the IED.
    Type: Application
    Filed: June 7, 2011
    Publication date: January 12, 2012
    Applicant: ABB RESEARCH LTD.
    Inventors: Kari Saarinen, Mirrasoul Mousavi, James Stoupis, John McGowan