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).
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Patent number: 9906035Abstract: 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: GrantFiled: March 3, 2016Date of Patent: February 27, 2018Assignee: COOPER TECHNOLOGIES COMPANYInventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
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Patent number: 9851549Abstract: 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: GrantFiled: October 9, 2015Date of Patent: December 26, 2017Assignee: Ningbo UniversityInventors: Mei Yu, Yi Liu, Li Cui, Shengli Fan, Yigang Wang
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Publication number: 20170256947Abstract: 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: ApplicationFiled: March 3, 2016Publication date: September 7, 2017Applicant: COOPER TECHNOLOGIES COMPANYInventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
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Publication number: 20170255216Abstract: 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: ApplicationFiled: March 3, 2016Publication date: September 7, 2017Applicant: COOPER TECHNOLOGIES COMPANYInventors: Dongbo Zhao, Yigang Wang, Chinmaya Baburao Patil
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Publication number: 20170117708Abstract: 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: ApplicationFiled: October 23, 2015Publication date: April 27, 2017Applicant: COOPER TECHNOLOGIES COMPANYInventors: YIGANG WANG, ROGER WAYNE ROGNLI
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Patent number: 9564757Abstract: 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: GrantFiled: July 8, 2013Date of Patent: February 7, 2017Assignee: EATON CORPORATIONInventors: Yigang Wang, Neha Mishra
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Publication number: 20160331266Abstract: 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: ApplicationFiled: March 18, 2015Publication date: November 17, 2016Inventors: Fei Xiang, Yigang Wang, Tao Dai, Xianhong Xu, Pu Yang, Song Gao, Lining Bu, Yi Lin
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Publication number: 20160299329Abstract: 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: ApplicationFiled: October 9, 2015Publication date: October 13, 2016Inventors: Mei Yu, Yi Liu, Li Cui, Shengli Fan, Yigang Wang
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Patent number: 9036901Abstract: A method for color correction of a pair of colorful stereo microscope images is provided, which transmits the color information of the foreground areas and the background area of the reference image to the aberrated image separately for avoiding transmission error of the color information of the varied areas of the pair of the images, thus sufficiently improves the accuracy of the color correction, reduces the difference between the color of the reference image and the color of the aberrated image, and well prepares for the stereo matching of the pair of colorful stereo microscope images as well as for the three-dimensional reconstruction and three-dimensional measurement; on the other hand, during the correction, the correcting procedure is provided automatically without manual work.Type: GrantFiled: September 18, 2013Date of Patent: May 19, 2015Assignee: Ningbo UniversityInventors: Gangyi Jiang, Xiangjun Liu, Mei Yu, Feng Shao, Zongju Peng, Yigang Wang
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Patent number: 9019487Abstract: A method for detecting a parfocality of a zoom-stereo microscope includes: acquiring four highest definitions corresponding to a plurality of images with a cooperation of four definition judging functions, acquiring a relatively clearest position according to the four highest definitions, comparing a definition in the relatively clearest position with a definition in a parfocal position to judge whether the relatively clearest position is the parfocal position, then adjusting a magnification of the zoom-stereo microscope to acquire the parfocal positions at a finite number of the discrete magnifications, and finally fitting a parfocal curve at the continuous magnifications. The method according to the present invention implements a parfocality detection of the stereo microscope automatically and effectively and increases a productivity, and has a high detecting precision. In addition, the method according to the present invention has a good robustness, so that users needn't intervene and adjust frequently.Type: GrantFiled: April 9, 2013Date of Patent: April 28, 2015Assignee: Ningbo UniversityInventors: Gangyi Jiang, Yigang Wang, Mei Yu, Zongju Peng, Feng Shao
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Publication number: 20150012144Abstract: 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: ApplicationFiled: July 8, 2013Publication date: January 8, 2015Applicant: EATON CORPORATIONInventors: YIGANG WANG, NEHA MISHRA
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Patent number: 8913848Abstract: A microscopic image fusion method based on region growing judges the fuzzy degree of the microscopic image and determines the fuzzy seed block by evaluating the definition of every image block in the microscopic image. Then, the fuzzy region and clear region are exactly segmented by region growing and are marked. Finally, a clear and high-quality microscopic image, fused by a plurality of microscopic images, is obtained. Due to the combination of the definition evaluation of the microscopic image, and segmentation of the fuzzy region and clear region by region growing, the fusion results of the microscopic image of the present invention show great advantages at the subjective human perception and the objective evaluation. Furthermore, the present invention has simple calculation and stable result, is easy to be implemented and adapted for fusing the digital optical microscopic images which are shot by shallow depth of field.Type: GrantFiled: February 24, 2013Date of Patent: December 16, 2014Assignee: Ningbo UniversityInventors: Gangyi Jiang, Cuixia Bai, Mei Yu, Yigang Wang, Zongju Peng, Feng Shao
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Publication number: 20140169661Abstract: A method for color correction of a pair of colorful stereo microscope images is provided, which transmits the color information of the foreground areas and the background area of the reference image to the aberrated image separately for avoiding transmission error of the color information of the varied areas of the pair of the images, thus sufficiently improves the accuracy of the color correction, reduces the difference between the color of the reference image and the color of the aberrated image, and well prepares for the stereo matching of the pair of colorful stereo microscope images as well as for the three-dimensional reconstruction and three-dimensional measurement; on the other hand, during the correction, the correcting procedure is provided automatically without manual work.Type: ApplicationFiled: September 18, 2013Publication date: June 19, 2014Applicant: Ningbo UniversityInventors: Gangyi Jiang, Xiangjun Liu, Mei Yu, Feng Shao, Zongju Peng, Yigang Wang
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Publication number: 20140029000Abstract: A method for detecting a parfocality of a zoom-stereo microscope includes: acquiring four highest definitions corresponding to a plurality of images with a cooperation of four definition judging functions, acquiring a relatively clearest position according to the four highest definitions, comparing a definition in the relatively clearest position with a definition in a parfocal position to judge whether the relatively clearest position is the parfocal position, then adjusting a magnification of the zoom-stereo microscope to acquire the parfocal positions at a finite number of the discrete magnifications, and finally fitting a parfocal curve at the continuous magnifications. The method according to the present invention implements a parfocality detection of the stereo microscope automatically and effectively and increases a productivity, and has a high detecting precision. In addition, the method according to the present invention has a good robustness, so that users needn't intervene and adjust frequently.Type: ApplicationFiled: April 9, 2013Publication date: January 30, 2014Applicant: Ningbo UniversityInventors: Gangyi Jiang, Yigang Wang, Mei Yu, Zongju Peng, Feng Shao