Patents by Inventor Yigang Wang

Yigang Wang 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: 10427548
    Abstract: An electric vehicle charging device includes a processing unit having a memory with a routine stored therein which, when executed by the processing unit causes the processing unit to control circuitry to prevent the electric vehicle charging device from charging an electric vehicle for a random delay period and to allow the electric vehicle charging device to charge the electric vehicle starting when the random delay period ends, wherein the random delay period starts at a predetermined start time and lasts a random delay length of time. The random delay reduces the peak load on a transformer that the electric vehicle charging device and other electric vehicle charging devices receive power from.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 1, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Chinmaya Baburao Patil, Yigang Wang, Ronald L. Thompson, Jose Antonio Trujillo
  • Publication number: 20190285681
    Abstract: An electromagnetic interference objective complexity evaluation method based on a fast S-transformation time-frequency space model comprises the following steps: (1) carrying out fast S-transformation on space electromagnetic signals acquired in real time to obtain a fast speed S-transformation two-dimensional time-frequency matrix of the signal; (2) calculating time domain occupancy rate TP, frequency occupancy rate FP, and energy occupancy rate EP of an evaluation object and interference signals in the fast speed S-transformation two-dimensional time-frequency matrix; (3) calculating electromagnetic interference objective complexity C=TP*FP*EP according to the time-frequency space model; and (4) finding a grading standard according to an objective complexity value so as to determine an electromagnetic interference objective complexity type.
    Type: Application
    Filed: July 26, 2018
    Publication date: September 19, 2019
    Applicant: WUHAN UNIVERSITY
    Inventors: Baiqiang YIN, Yigang HE, Bing LI, Lei ZUO, Hui ZHANG, Shudong WANG
  • Publication number: 20190234558
    Abstract: Provided is a leak-proof lubrication system for a power device, comprising an oil supply pump inlet pipe, an oil supply pump, an oil supply pressure gauge, an oil supply pump outlet pipe, an oil supply filter, a lubricating oil, an oil storage tank, an oil return pipe, an storage tank pressure gauge, a vacuum pump intake pipe, a vacuum pump inlet air filter, a vacuum pump and a vacuum pump exhaust pipe. The system employs a negative pressure operation method in which the pressure of the lubrication system is controlled to be lower than the outside ambient pressure, which allows a small amount of air to flow from the outside to the inside of the lubrication system along with the lubricant to return to the storage tank, preventing leakage of the lubricant from connection joints. It is suitable to be used for gas turbines or other high-speed power machines.
    Type: Application
    Filed: June 11, 2018
    Publication date: August 1, 2019
    Applicant: Harbin Engineering Univeristy
    Inventors: Song Wang, Zhongyi Wang, Ting Wang, Lei Wan, Tao Sun, Yigang Luan
  • Patent number: 10362215
    Abstract: The present invention discloses a microscopic three-dimensional measurement system and method based on a moving diaphragm. The present invention adds the diaphragm into the existing optical microscopic imaging system to limit light irradiation angle during imaging for reducing the diameter of blur circle, which extends the depth of field and the depth measurement range, so as to achieve the three-dimensional measurement of large-size objects to be measured. Through changing the position of the added diaphragm, two images with different light incident directions are obtained, which is similar to binocular stereo vision, and then the disparity map is used to predict the depth, so as to carry out the 3D scene reconstruction. Since the depth of field of the imaging system is enlarged and the imaging model has certain non-linear characteristics, the present invention uses quadratic function to express the non-linearity, which reduces the measurement error.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: July 23, 2019
    Assignee: Ningbo University
    Inventors: Gangyi Jiang, Mei Yu, Shengli Fan, Yigang Wang
  • Patent number: 10256628
    Abstract: A controller and method are usable to control the provision of electrical power from a local electrical network to a power grid. If it is determined that changes in the power grid voltage are correlated with the provision of power to the power grid, the power that is being provided to the power grid is manipulated so that the rate of change of the wattage that is provided to the power grid does not exceed a predetermined ramp rate. Such a manipulation is accomplished by adjusting an operational parameter of one or more electrical loads that are connected with the local electrical network.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 9, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Yigang Wang, Roger Wayne Rognli
  • Publication number: 20190072832
    Abstract: A method can be used to control the operation of one or more non-light-emitting, variable transmission devices. In an embodiment, a method of operating a plurality of non-light-emitting, variable transmission devices can include receiving requests for requested visible transmittance for the non-light-emitting, variable transmission devices; determining operating parameters for the non-light-emitting, variable transmission devices; and operating the non-light-emitting, variable transmission devices at the operating parameters, wherein the operating parameters for the non-light-emitting, variable transmission devices are different.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 7, 2019
    Inventors: Bryan D. Greer, Anna Brown, Yigang Wang
  • Publication number: 20180292099
    Abstract: A load management system including a number of sensors structured to sense characteristics of a managed area, a controller including a processor structured to estimate occupancy of the managed area based on outputs of the number of sensors and to implement a load management scheme, a number of circuit breakers, at least one of the number of circuit breakers being electrically connected to a corresponding load circuit and including a metering circuit structured to meter energy provided to the load circuit and a device control unit structured to control one or more load devices electrically connected to the load circuit based on the load management scheme. The processor is structured to implement the load management scheme based on outputs of the sensors and metering information of one or more of the circuit breakers.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 11, 2018
    Applicant: EATON CORPORATION
    Inventors: YIGANG WANG, CHINMAYA PATIL, RONALD L. THOMPSON, AUSTIN ELDRIDGE
  • Patent number: 10082814
    Abstract: A method of operating an electrical feeder permits the electrical feeder voltage to be maintained at the minimum voltage within a voltage range based upon dynamic grouping together of electrical generators on the electrical feeder with demand response loads on the electrical feeder. A method of assessing the proper operation of a voltage control device on the electrical feeder involves detecting a number of properties of the electrical power in the electrical feeder both prior to and subsequent to a change in an operational parameter of a voltage control device. An expected effect upon the electrical feeder of one or more distributed generators is filtered from this in order to determine a net effect of the voltage control device itself on the electrical feeder. Based upon the detected net effect and a predicted baseline effect for the voltage control device, it can be determined whether the voltage control device is functioning properly.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: September 25, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
  • Publication number: 20180196323
    Abstract: An apparatus can include an electrochromic device configured to be maintained a continuously graded transmission state. When using the apparatus, the electrochromic device can be switched from a first transmission state to a continuously graded transmission state and maintained in the continuously graded transmission state. The current during switching can be higher than current during maintaining the continuously graded transmission state. In an embodiment, the grading can be reversed to provide a mirror image of the grading. In another embodiment, at least 27% and up to 100% of the electrochromic device can be in a continuously graded transmission state. The control device can be located within an insulating glass unit, adjacent to the insulating glass unit, or remotely from the insulating glass unit. In a further embodiment, a gap between bus bars can be used to form a portion of the electrochromic device that can be continuously graded.
    Type: Application
    Filed: December 20, 2017
    Publication date: July 12, 2018
    Inventors: Yigang WANG, Bryan D. GREER
  • Publication number: 20180198972
    Abstract: The present invention discloses a microscopic three-dimensional measurement system and method based on a moving diaphragm. The present invention adds the diaphragm into the existing optical microscopic imaging system to limit light irradiation angle during imaging for reducing the diameter of blur circle, which extends the depth of field and the depth measurement range, so as to achieve the three-dimensional measurement of large-size objects to be measured. Through changing the position of the added diaphragm, two images with different light incident directions are obtained, which is similar to binocular stereo vision, and then the disparity map is used to predict the depth, so as to carry out the 3D scene reconstruction. Since the depth of field of the imaging system is enlarged and the imaging model has certain non-linear characteristics, the present invention uses quadratic function to express the non-linearity, which reduces the measurement error.
    Type: Application
    Filed: February 12, 2018
    Publication date: July 12, 2018
    Inventors: Gangyi Jiang, Mei Yu, Shengli Fan, Yigang Wang
  • Publication number: 20180110463
    Abstract: A signal acquisition device (100) of sleep breathing state based on bio-impedance and a monitoring system are provided. The signal acquisition device (100) includes a signal acquisition unit (101), a processing control unit (102), a data storage unit (103) and a wireless communication unit (104). The signal acquisition unit (101) includes electrodes (1011, 1012), a chest impedance acquisition module (1013) connected with the electrodes (1011, 1012), a heart rate acquisition module (1014) connected with the electrodes, and a snore acquisition module (1015). The signal acquisition unit (101) can collect signal data through three channels synchronously, chest impedances and heart rate signals are acquired by using bio-impedance technology, and snore audio signals are combined to monitor sleep breathing state. Furthermore, wireless signal transmission is used to prevent directly connecting with the patient via wires, the device is simple and cheap, convenient to wear, and applicable to domestic utilization.
    Type: Application
    Filed: May 10, 2016
    Publication date: April 26, 2018
    Inventors: Tao Dai, Xianhong Xu, Song Gao, Yigang Wang
  • Publication number: 20180105052
    Abstract: An electric vehicle charging device includes a processing unit having a memory with a routine stored therein which, when executed by the processing unit causes the processing unit to control circuitry to prevent the electric vehicle charging device from charging an electric vehicle for a random delay period and to allow the electric vehicle charging device to charge the electric vehicle starting when the random delay period ends, wherein the random delay period starts at a predetermined start time and lasts a random delay length of time. The random delay reduces the peak load on a transformer that the electric vehicle charging device and other electric vehicle charging devices receive power from.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 19, 2018
    Applicant: EATON CORPORATION
    Inventors: CHINMAYA BABURAO PATIL, YIGANG WANG, RONALD L. THOMPSON, JOSE ANTONIO TRUJILLO
  • Patent number: 9906035
    Abstract: A method of operating an electrical feeder permits the electrical feeder voltage to be maintained at the minimum voltage within a voltage range based upon dynamic grouping together of electrical generators on the electrical feeder with demand response loads on the electrical feeder. A method of assessing the proper operation of a voltage control device on the electrical feeder involves detecting a number of properties of the electrical power in the electrical feeder both prior to and subsequent to a change in an operational parameter of a voltage control device. An expected effect upon the electrical feeder of one or more distributed generators is filtered from this in order to determine a net effect of the voltage control device itself on the electrical feeder. Based upon the detected net effect and a predicted baseline effect for the voltage control device, it can be determined whether the voltage control device is functioning properly.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: February 27, 2018
    Assignee: COOPER TECHNOLOGIES COMPANY
    Inventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
  • Patent number: 9851549
    Abstract: A rapid autofocus method for a stereo microscope includes steps of: calculating a disparity of each of stereo microscopic images in a stereo microscopic calibration image sequence; extracting a clear stereo microscopic image sequence from the stereo microscopic calibration image sequence; then, finding out a largest disparity and a smallest disparity among the disparities of all the stereo microscopic images in the clear stereo microscopic image sequence; at a chosen magnification, arbitrarily acquiring a stereo microscopic image; finally, determining a disparity range according to the disparity of the acquired stereo microscopic image, the largest disparity and the smallest disparity, and realizing an autofocus of a target object in the acquired stereo microscopic images. The disparity range is obtained via once off-line calibration at the same magnification, and applicable to the autofocus at an arbitrary timing.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: December 26, 2017
    Assignee: Ningbo University
    Inventors: Mei Yu, Yi Liu, Li Cui, Shengli Fan, Yigang Wang
  • Publication number: 20170255216
    Abstract: A method of operating an electrical feeder permits the electrical feeder voltage to be maintained at the minimum voltage within a voltage range based upon dynamic grouping together of electrical generators on the electrical feeder with demand response loads on the electrical feeder. A method of assessing the proper operation of a voltage control device on the electrical feeder involves detecting a number of properties of the electrical power in the electrical feeder both prior to and subsequent to a change in an operational parameter of a voltage control device. An expected effect upon the electrical feeder of one or more distributed generators is filtered from this in order to determine a net effect of the voltage control device itself on the electrical feeder. Based upon the detected net effect and a predicted baseline effect for the voltage control device, it can be determined whether the voltage control device is functioning properly.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
  • Publication number: 20170256947
    Abstract: A method of operating an electrical feeder permits the electrical feeder voltage to be maintained at the minimum voltage within a voltage range based upon dynamic grouping together of electrical generators on the electrical feeder with demand response loads on the electrical feeder. A method of assessing the proper operation of a voltage control device on the electrical feeder involves detecting a number of properties of the electrical power in the electrical feeder both prior to and subsequent to a change in an operational parameter of a voltage control device. An expected effect upon the electrical feeder of one or more distributed generators is filtered from this in order to determine a net effect of the voltage control device itself on the electrical feeder. Based upon the detected net effect and a predicted baseline effect for the voltage control device, it can be determined whether the voltage control device is functioning properly.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
  • Publication number: 20170117708
    Abstract: A controller and method are usable to control the provision of electrical power from a local electrical network to a power grid. If it is determined that changes in the power grid voltage are correlated with the provision of power to the power grid, the power that is being provided to the power grid is manipulated so that the rate of change of the wattage that is provided to the power grid does not exceed a predetermined ramp rate. Such a manipulation is accomplished by adjusting an operational parameter of one or more electrical loads that are connected with the local electrical network.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 27, 2017
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventors: YIGANG WANG, ROGER WAYNE ROGNLI
  • Patent number: 9564757
    Abstract: An apparatus optimizes a hybrid power system with respect to long-term characteristics of the hybrid power system. The apparatus includes a real-time controller of the hybrid power system and a processor. The processor cooperates with the real-time controller and is structured to input current measurements of information from the hybrid power system and hybrid dynamics information including continuous dynamics and discrete time dynamics that model the hybrid power system. The processor provides online optimization of the hybrid power system based upon the input, and outputs a power flow reference and a number of switch controls to the real-time controller based upon the online optimization. The processor is further structured to provide at least one of: real-time forecasts or real-time prediction of future information operatively associated with the hybrid power system as part of the input, and real-time processing of the online optimization.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: February 7, 2017
    Assignee: EATON CORPORATION
    Inventors: Yigang Wang, Neha Mishra
  • Publication number: 20160331266
    Abstract: A measurement probe includes a substrate and six electrodes embedded in the substrate, including a first electrode, a second electrode, a third electrode, a fourth electrode, a fifth electrode and a sixth electrode, the first electrode is arranged opposite to the fourth electrode, and/or the second electrode is arranged opposite to the fifth electrode, and/or and the third electrode is arrange opposite to the sixth electrode. Excitations are applied between any opposite electrodes, the electrodes are circumferentially distributed on the substrate, and at least two pairs of electrodes are in axial symmetry. The probe can carry out stable signal collection and has simple structure. The measurement system and the measurement method can reduce the influence of the contact impedance between the probe and the measured tissues and also improve the accuracy of judging whether the probe is located at the juncture of human body tissues or animal body tissues.
    Type: Application
    Filed: March 18, 2015
    Publication date: November 17, 2016
    Inventors: Fei Xiang, Yigang Wang, Tao Dai, Xianhong Xu, Pu Yang, Song Gao, Lining Bu, Yi Lin
  • Publication number: 20160299329
    Abstract: A rapid autofocus method for a stereo microscope includes steps of: calculating a disparity of each of stereo microscopic images in a stereo microscopic calibration image sequence; extracting a clear stereo microscopic image sequence from the stereo microscopic calibration image sequence; then, finding out a largest disparity and a smallest disparity among the disparities of all the stereo microscopic images in the clear stereo microscopic image sequence; at a chosen magnification, arbitrarily acquiring a stereo microscopic image; finally, determining a disparity range according to the disparity of the acquired stereo microscopic image, the largest disparity and the smallest disparity, and realizing an autofocus of a target object in the acquired stereo microscopic images. The disparity range is obtained via once off-line calibration at the same magnification, and applicable to the autofocus at an arbitrary timing.
    Type: Application
    Filed: October 9, 2015
    Publication date: October 13, 2016
    Inventors: Mei Yu, Yi Liu, Li Cui, Shengli Fan, Yigang Wang