Patents Examined by Son T Le
  • Patent number: 11914359
    Abstract: A device and a method for planning of maintenance work on a machine. Based on sensor data S, input data E are generated. The input data E are compared with model sensor data of different model data pattern and are checked regarding conformity. Each model data pattern is assigned a maintenance model in the model database. If a conformity of input data E with model sensor data M of a model data pattern has been determined, the assigned maintenance model can be selected for a maintenance of the machine. The maintenance model comprises at least one maintenance step and the resource required for it to be carried out. Subsequently, the availability of the required resource is checked and the resource is requested, if available. By such a device or method, a predicted maintenance can be performed based on empirical knowledge contained in the maintenance models of model database.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: February 27, 2024
    Assignee: SCHULER PRESSEN GMBH
    Inventors: Alexander Metzger, Stefanie Apprich
  • Patent number: 11914358
    Abstract: Methods and systems are provided for increasing an accuracy of anomaly detection in assets such as vehicle components. In one example, a method provides for continuous health monitoring of connected physical assets, comprising adapting thresholds for anomaly detection and root cause analysis algorithms for the connected assets based on an aggregation of new connected data using machine learning; updating and ranking advanced statistical and machine learning models based on their performance using connected data until confirming a best performing model; and deploying the best performing model to monitor the connected physical assets.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: February 27, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Devesh Upadhyay, Huanyi Shui, Dimitar Filev
  • Patent number: 11906557
    Abstract: A method includes obtaining electrical measurements of an input signal of a power system. The electrical measurements are obtained at a sampling frequency and the input signal is indicative of an operating frequency of the power system. The method includes generating an intermediate signal from the input signal. The intermediate signal has a direct current (DC) component indicative of a magnitude and a phase of the input signal. The method includes filtering the intermediate signal using an adjustable length filter to obtain the magnitude and the phase of the input signal. The length of the adjustable length filter varies based at least in part on a period measurement of the power system.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: February 20, 2024
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Veselin Skendzic, Daniel P. Dwyer, Chandrasekaran Swaminathan
  • Patent number: 11898887
    Abstract: An apparatus for inductive rotational-position sensing is disclosed. An apparatus may include an electrically conductive material defining a continuous path for electrical current to flow between a first and a second location. The continuous path may include a first path portion, defined as a generally clockwise path for the electrical current to flow around a geometric center of the continuous path, and a second path portion, defined as a generally counter-clockwise path for the electrical current to flow around the geometric center. The continuous path may also include a radial-direction-reversal region at which one of the first path portion or the second path portion changes from being defined as a generally outward path for the electrical current to flow away from the geometric center to being defined as a generally inward path for the electrical current to flow toward the geometric center. Related systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: February 13, 2024
    Assignee: Microchip Technology Incorporated
    Inventors: Ganesh Shaga, Sudheer Puttapudi, Surendra Akkina
  • Patent number: 11892510
    Abstract: Provided is an inspection device for a rotating electric machine, including: a storage unit configured to store tendency information indicating a relationship among a position of damage that occurs in an inspection target portion being a range to be inspected of a rotor included in a rotating electric machine, a scale of the damage, and an amount of deformation that occurs in a measurement target portion set on an outer surface of the rotor; a measurement unit configured to measure the amount of deformation that has occurred in the measurement target portion; and a damage estimating unit configured to estimate the position and the scale of the damage that has occurred in the measurement target portion based on the tendency information and the amount of deformation in the measurement target portion, which has been measured by the measurement unit.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: February 6, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Norihiko Hana, Masao Akiyoshi
  • Patent number: 11891272
    Abstract: A method for allocating capacity of an energy storage associated with at least one passenger transport installation includes continuously monitoring performance data of the energy storage; obtaining first data associated with operating the at least one passenger transport installation; identifying different uses for the energy stored in the energy storage; determining an allocation of energy storage capacity available for the different uses based on the performance data and the first data; and applying the determined allocation.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: February 6, 2024
    Assignee: KONE CORPORATION
    Inventors: Pekka Perunka, Pekka Perälä, Tapio Tyni, Janne Öfversten, Ari Hänninen
  • Patent number: 11892441
    Abstract: A transboundary-area water-body monitoring and early warning system includes a monitoring device placed in water body to monitor the water body. The monitoring device comprises a housing body. A control mechanism, a communication mechanism, a sensor and a power box are arranged within the housing body. Power ends of the control mechanism, of the sensor, and of the communication mechanism are electrically connected to an output end of the power box. Control terminals of the communication mechanism and of the sensor are electrically connected to a control terminal of the control mechanism. The control mechanism is configured to receive a signal sent by the sensor, and send the signal from the sensor to a background computer through the communication mechanism. The housing body comprises a lower housing and an upper housing. The lower housing is sealably connected to the upper housing.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: February 6, 2024
    Assignees: NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT, JIANGSU JHS ENVIRONMENT TECHNOLOGIES CO., LTD.
    Inventors: Chengcheng Ding, Yibin Cui, Jianhua Dai, Nan Shen, Shudong Wang
  • Patent number: 11886180
    Abstract: The present disclosure describes a method, system, and computer readable medium for facilitating predictive maintenance of testing machine using a combination of deep learning. The method comprises performing receiving plurality of tested data of a plurality of products being tested by the testing machine. The method further comprises applying a predictive model, having predictive model parameters, upon the plurality of tested data to predict a plurality of future test data corresponding to the plurality of products. The method further comprises determine a deviation between the plurality of tested data and the plurality of future test data, wherein the deviation indicates fault in the testing machine. The method further comprises determine a fault level of the testing machine by comparing the deviation with a predefined threshold and determining, during run-time, the maintenance required for the testing machine based on the fault level.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: January 30, 2024
    Assignee: CLARITRICS INC.
    Inventors: Praveen Kumar Suresh, Sriram Rajkumar, Sudarsun Santhiappan
  • Patent number: 11886179
    Abstract: A method for determining machine usage severity including collecting repair data for multiple machines over a repair time period and telematics data from sensors on the machines over an activity time period. The method can include calculating predictive features from the telematics data for each of the machines and creating a severity model based on the predictive features. The severity model can be validated with the predictive features and corresponding repair data for each of the machines. The method can include receiving telematics data from sensors on a deployed machine for a deployed period of time, calculating a plurality of machine predictive features from the telematics data, and feeding the machine predictive features into the severity model to calculate a severity score for the deployed machine. The method can include displaying a recommendation to perform maintenance on the deployed machine when the machine usage severity score exceeds a selected threshold.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: January 30, 2024
    Assignee: Caterpillar Inc.
    Inventors: Gavril A Giurgiu, Prashant M. Rai, Kyle J. Cline
  • Patent number: 11885647
    Abstract: A sensor apparatus includes a resonator, a transducer, a damping resistor, a first switch, a filter stage, a second switch, and a noise rejection stage. The transducer is configured to detect a position of the resonator. The damping resistor is configured to electrostatically actuate the transducer and convert a thermomechanical noise of the resonator to an electromechanical noise. The first switch is configured to receive a first signal from the transducer. The filter stage is configured to receive the first signal and adjust a phase and a gain of the first signal and output a filtered first signal. The second switch is configured to receive a second signal from the transducer. The noise rejection stage is configured to receive the filtered first signal and the second signal and reduce the filtered first signal from an output signal.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: January 30, 2024
    Assignee: ROHM Co., Ltd.
    Inventor: Jonah Dewall
  • Patent number: 11887753
    Abstract: Methods for assessing cable insulation are provided that can include engaging a first tine gap interdigital capacitor assembly with the exterior of the cable jacket to determine a first capacitance and dissipation factor value of the insulation using the first tine gap interdigital capacitor assembly; engaging a second tine gap interdigital capacitor assembly with the exterior of the cable jacket to determine a second capacitance and dissipation factor value of the insulation using the second tine gap interdigital capacitor assembly. Systems for assessing cable insulation are also provided. The systems can include a cable jacket encompassing cable insulation and conductive material; at least two tine gap interdigital capacitor assemblies engaged with the cable jacket; and processing circuitry operatively engaged with the capacitor assemblies.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 30, 2024
    Assignee: Battelle Memorial Institute
    Inventors: Samuel W. Glass, III, Nicola Bowler
  • Patent number: 11885837
    Abstract: A test verification circuit is described herein for verifying proper operation of a tested circuit, such as a voltage hazard warning circuit, using an N-channel MOSFET configured for switching ON and OFF the test verification circuit during a power outage, and a voltage source that provides an input voltage to the N-channel MOSFET from a conserved power supply. The N-channel MOSFET provides temporary power from a conserved power supply to the test verification circuit upon activation by a user during a power outage, and the test verification circuit determines whether the tested circuit has been de-energized, remains energized, or there remains inadequate power to complete the test.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: January 30, 2024
    Assignee: Automatic Timing & Controls, Inc.
    Inventor: Roger Clarke
  • Patent number: 11879754
    Abstract: A stroke sensor module is provided in which the contact area where the moving element slides on the main body is limited. A stroke sensor module has: a moving element that is moved in a first direction; a magnetic field generator that is moved in the first direction together with the moving element; a magnetic field detecting element that detects movement of the magnetic field generator; and a housing that houses a part of the moving element and the magnetic field generator. At least either the moving element or the magnetic field generator has a plurality of protrusions that are provided at different angular positions, as viewed in the first direction, and the housing has guide portions that guide the protrusions.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: January 23, 2024
    Assignee: TDK Corporation
    Inventors: Toshio Ishikawara, Keiji Suzuki, Tatsuya Kato, Toshihiko Oyama, Takahiro Moriya
  • Patent number: 11879913
    Abstract: A probe card structure is provided. The probe card structure includes a circuit board, an adapter board, and a probe head assembly. The adapter board is disposed on one side of the circuit board, a plurality of electrically conductive pillars are formed on one surface of the adapter board that faces the circuit board. A solder ball is disposed on one end of each of the plurality of electrically conductive pillars facing the circuit board, and the adapter board is coupled to the circuit board through the solder balls of the plurality of electrically conductive pillars. The probe head assembly including a plurality of probes, the probe head assembly is coupled to the adapter board, and the plurality of probes are electrically connected to the adapter board.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: January 23, 2024
    Assignee: XINZHUO TECHNOLOGY (ZHEJIANG) CO., LTD.
    Inventor: Choon Leong Lou
  • Patent number: 11881815
    Abstract: The application provides a photovoltaic inverter system, an automatic locating method of RSDs and a fault control method thereof. The automatic locating method comprises turning off all RSDs and sampling a voltage of an output end of each RSD as a first voltage before an inverter operates; turning on any one of the RSDs and sampling a voltage of the output end of each RSD as a second voltage, determining all RSDs in a photovoltaic module string to which the RSD in a turned-on state belongs according to the first voltage and the second voltage, and repeating the above control method for any one of the RSDs outside the photovoltaic module string to which the determined RSDs belong until corresponding connection relations between all RSDs and all photovoltaic module strings are determined.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: January 23, 2024
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Chengjun He, Feidong Xu, Xuancai Zhu
  • Patent number: 11879929
    Abstract: A method is for testing the functionality of a switching member including at least one switching element. A switching state is influenced via a control input of the switching element and via a control signal generated and output to the control input. An activation signal is output to the control unit and changes the control signal. The activation signal induces a test signal as the change to the control signal and induces a disconnection pulse as the test signal. The SiC or GaN power semiconductor is switched off via the disconnection pulse and conducts current in the reverse direction. In response to the disconnection pulse, the voltage drop is recorded. A comparison is carried out between an indicator and a reference encoding an expected response to the disconnection pulse. Depending on the result of the comparison, a status signal is generated which encodes the functionality of the switching member.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: January 23, 2024
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Hubert Schierling
  • Patent number: 11874107
    Abstract: A device for processing rotation-dependent measured values includes a data converter, a sequencing control, and an output interface. Series of measured values, which are a function of the rotation of a shaft and of which at least one is an angle value that indicates the angular position of the shaft, are conveyable to the data converter at constant time intervals of a measuring interval. The data converter is adapted to subdivide a rotation of the shaft into sectors and, using one of the angle values as a reference angle value, to allocate received measured values to a sector, and per rotation of the shaft, to ascertain for each series of measured values precisely one result value for each sector. The result values are able to be output to the output interface.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 16, 2024
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: Ingo Joachimsthaler, Sebastian Schmidt
  • Patent number: 11874326
    Abstract: An on-off detection circuit for a flash switch includes an on-off detection module and a control module. An input end of the on-off detection module is connected with a power supply through the flash switch, the on-off detection module is configured to acquire a digital signal as a detection level according to an electromagnetic signal generated by input current. An input end of the control module is connected with an output end of the on-off detection module, to receive the detection level and determine an on-off state change of the flash switch according to the detection level.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: January 16, 2024
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Huijun Wang, He Zhang, Fan Zeng
  • Patent number: 11874336
    Abstract: A method and a system for diagnosing a fault of a three-phase three-level rectifier are relate to the technical field of fault diagnosis of power electronic equipment, and provided to implement identification and location of an open-circuit fault of a power switching device thereof. A deviation between an expected value and an actual value of a phase-to-phase voltage is adopted as a diagnosis variable. The diagnosis variable is calculated by adopting a screening technique, thereby reducing calculation error to ensure accuracy of diagnosis. Only existing voltage current signals in a control system of the rectifier are required to calculate the diagnosis variable, so no additional hardware is required and low-cost fault diagnosis can be implemented. Different voltage thresholds are adopted for different fault characteristic sections, and the voltage thresholds are updated in real time according to a direct current side voltage, which improves diagnosis speed while ensuring higher robustness.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: January 16, 2024
    Assignee: WUHAN UNIVERSITY
    Inventors: Yigang He, Mingyun Chen, Chunsong Sui, Zhaorong Zeng, Hui Zhang
  • Patent number: 11874305
    Abstract: The application provides an attenuator and a differential voltage probe, comprising a forward attenuation circuit and a reverse attenuation circuit which are symmetrical with each other, a first compensation unit and a third compensation unit which are symmetrical with each other, a second compensation unit and a fourth compensation unit which are symmetrical with each other, and a differential amplifier; the four compensation units are all adjustable capacitor units composed of constant capacitance; a positive-going signal to be tested is attenuated by the forward attenuation circuit, and frequency characteristics of a preset frequency point are adjusted by the first compensation unit and second compensation unit; a negative-going signal to be tested is attenuated by the reverse attenuation circuit, and frequency characteristics of a preset frequency point are adjusted by the third compensation unit and fourth compensation unit; finally, the difference value is calculated by the differential amplifier, ampli
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: January 16, 2024
    Assignee: SHENZHEN ZHIYONG ELECTRONICS CO., LTD.
    Inventor: Xiaoming Fan