Patents by Inventor Yutao Tang

Yutao Tang 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: 12373873
    Abstract: There are provided systems and methods relating to checking and confirming merchandise purchased at shopping facilities. In one form, the system includes: a shopping cart containing merchandise items to be purchased; a sales transaction database; a point-of-sales system that creates transaction records identified by transaction identifiers; and a mobile device used by an employee that includes a sensor to scan a paper or digital receipt to obtain the transaction identifier and a camera to capture images of the items in the shopping cart. The system also includes a control circuit that receives the transaction identifier, accesses the database using the identifier to determine the purchased items; analyzes the images of the merchandise items in the shopping cart and creates a computer vision receipt listing detected items; compares the purchased items with the detected items; and takes an action if there is a discrepancy.
    Type: Grant
    Filed: April 22, 2024
    Date of Patent: July 29, 2025
    Assignee: Walmart Apollo, LLC
    Inventors: Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang, Sicong Fang, Haining Liu, Yijing Sun, Mingquan Yuan, Shouyi Zhang, Pingjian Yu, Ryan B. Reagan, Tianyi Mao, Shangeetha Ravichandran Susseelaa, Zhenyu Wang, Feiyun Zhu
  • Patent number: 12355246
    Abstract: An optical storage system designed to compensate for the water hammer effect in hydropower turbines and its cooperative frequency modulation method are provided. The method involves detecting the water hammer effect and utilizing a pre-established system model integrating a hydropower unit, photovoltaic system, and hybrid energy storage system. Through model predictive control combined with a whale optimization algorithm, the governor parameters of the hydropower unit are optimized. The system then obtains the photovoltaic active power output and the battery's state of charge (SOC) within the hybrid energy storage system. Based on these parameters, a collaborative control strategy for the photovoltaic and hybrid energy storage systems is determined and executed. This strategy enables effective control of the photovoltaic system and/or hybrid energy storage to compensate for reverse power adjustments in the hydropower unit, addressing the water hammer effect and ensuring stable power grid operation.
    Type: Grant
    Filed: January 17, 2025
    Date of Patent: July 8, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongchun Shu, Guangxue Wang, Yefu He, Yutao Tang, Botao Shi, Yiming Han
  • Patent number: 12348036
    Abstract: This application presents an adaptive arc suppression method for ground faults in distribution networks, merging active and passive relay protection strategies. The method proceeds as follows: based on collected ground parameters, the fault phase is identified; compensation current is calculated from the fault's electromotive force, ground leakage resistance, and ground capacitance; current is injected at the neutral point according to the compensation current; finally, the arc suppression scheme is executed based on the zero-sequence voltage of the network's busbars. This approach incorporates both voltage- and current-based methods, addressing the limitation of fixed operation scenarios in traditional arc suppression methods. By quickly adapting to various fault situations, this method ensures an efficient and prompt response tailored to specific scenario requirements.
    Type: Grant
    Filed: November 13, 2024
    Date of Patent: July 1, 2025
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongchun Shu, Jun Dong, Yuan Gao, Yutao Tang, Yiming Han, Kaiqing Tian
  • Publication number: 20250208188
    Abstract: The provided are a line fault detection method, system, equipment, and a computer-readable storage medium. The line fault detection method comprises the following steps: Inject a pulse signal into the grounding electrode line and acquire fault voltage traveling wave data responding to the fault point in the grounding electrode line based on the measuring spot; Based on the fault voltage traveling wave data and a preset step size, determine the voltage forward traveling wave sequence and voltage reverse traveling wave sequence for the entire grounding electrode line; Based on the corresponding energy superposition expressions of the voltage forward traveling wave sequence and the voltage reverse traveling wave sequence, determine the integral value sequence of the traveling wave product within a preset time period; Based on the maximum mutation point in the integral value sequence, determine the fault distance.
    Type: Application
    Filed: September 29, 2024
    Publication date: June 26, 2025
    Applicant: Kunming University of Science and Technology
    Inventors: Hongchun SHU, Yue DAI, Yutao TANG, Daiwen ZHANG, Yiming HAN, Weijie LOU, Hongfang ZHAO, Shunguang LEI
  • Publication number: 20250167541
    Abstract: The provided are a method, system, and medium for active arc-extinguishing voltage-current conversion in distribution networks. The method includes: detecting a single-phase-to-ground fault in the distribution network and identifying the target faulty phase; injecting compensating currents into the target faulty phase to reduce its voltage; measuring the residual current at the fault point during the injection of compensating currents and the zero-sequence voltage of the target faulty phase; determining a critical zero-sequence voltage threshold based on the residual current at the fault point and assessing whether this critical value exceeds the present zero-sequence voltage; if so, ceasing the injection of compensating currents into the target faulty phase and instead injecting active arc-extinguishing currents at the neutral point of the distribution network to mitigate ground currents at the grounding points of the distribution network.
    Type: Application
    Filed: September 26, 2024
    Publication date: May 22, 2025
    Applicant: Kunming University of Science and Technology
    Inventors: Hongchun SHU, Jun DONG, Yutao TANG, Yuan GAO, Yiming HAN, Weijie LOU, Guangxue WANG, Hongfang ZHAO
  • Publication number: 20250158400
    Abstract: This application presents an adaptive arc suppression method for ground faults in distribution networks, merging active and passive relay protection strategies. The method proceeds as follows: based on collected ground parameters, the fault phase is identified; compensation current is calculated from the fault's electromotive force, ground leakage resistance, and ground capacitance; current is injected at the neutral point according to the compensation current; finally, the arc suppression scheme is executed based on the zero-sequence voltage of the network's busbars. This approach incorporates both voltage- and current-based methods, addressing the limitation of fixed operation scenarios in traditional arc suppression methods. By quickly adapting to various fault situations, this method ensures an efficient and prompt response tailored to specific scenario requirements.
    Type: Application
    Filed: November 13, 2024
    Publication date: May 15, 2025
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongchun SHU, Jun DONG, Yuan GAO, Yutao TANG, Yiming HAN, Kaiqing TIAN
  • Publication number: 20250158401
    Abstract: This invention relates to a method and system for adaptive reclosing of single-phase AC transmission lines in wind power systems. The invention utilizes single-ended electrical quantity to determine the type of fault. After a fault occurs, a signal acquisition device is used to sample the voltage of the fault phase. The obtained voltage is subjected to short-time Fourier transform to extract the amplitude of the fundamental frequency voltage component, and then processed with differential amplification to construct a fault nature identification criterion. Combined with a sliding time window for fault identification, if it is identified as a permanent fault, the reclosing device is locked out; if it is identified as a transient fault, the fault disappearance time is calculated to determine the reclosing time and output the closing signal. This invention is designed for adaptive reclosing after a circuit breaker trips in wind power AC transmission lines.
    Type: Application
    Filed: November 13, 2024
    Publication date: May 15, 2025
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongchun Shu, Yue Dai, Cong Li, Yutao Tang, Hongfang Zhao, Yiming Han, Kaiqing Tian, Jun Dong
  • Patent number: 12223671
    Abstract: A dimming device for a switchable glass includes a third wireless communications component and a third controller. The third wireless communications component is configured to establish a communications connection to a master computer and a second unmanned aerial vehicle, and to receive a target transmittance sent by the master computer and a transmittance of a switchable glass to be detected sent by the second unmanned aerial vehicle. The third controller is configured to adjust a voltage applied to the switchable glass to be detected when the transmittance of the switchable glass to be detected is inconsistent with the target transmittance, so that the transmittance of the switchable glass to be detected is consistent with the target transmittance.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: February 11, 2025
    Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongbo Wang, Chen Meng, Yutao Tang, Xiaotian Pang, Zhong Hu, Qinhao Piao
  • Patent number: 12072565
    Abstract: A temperature control system and a driving method thereof, and a liquid crystal apparatus are provided.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: August 27, 2024
    Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Dahai Hu, Wei Sun, Chen Meng, Bo Fu, Shaobo Han, Zhong Hu, Guo Liu, Jiarong Liu, Xiantao Liu, Yutao Tang, Qinhao Piao, Yongbo Wang, Siheng Xu, Wenjie Zhong, Binghai Zhu
  • Publication number: 20240273598
    Abstract: There are provided systems and methods relating to checking and confirming merchandise purchased at shopping facilities. In one form, the system includes: a shopping cart containing merchandise items to be purchased; a sales transaction database; a point-of-sales system that creates transaction records identified by transaction identifiers; and a mobile device used by an employee that includes a sensor to scan a paper or digital receipt to obtain the transaction identifier and a camera to capture images of the items in the shopping cart. The system also includes a control circuit that receives the transaction identifier, accesses the database using the identifier to determine the purchased items; analyzes the images of the merchandise items in the shopping cart and creates a computer vision receipt listing detected items; compares the purchased items with the detected items; and takes an action if there is a discrepancy.
    Type: Application
    Filed: April 22, 2024
    Publication date: August 15, 2024
    Inventors: Zhichun XIAO, Lingfeng ZHANG, Yao LIU, Jon HAMMER, Yutao TANG, Sicong FANG, Haining LIU, Yijing SUN, Mingquan YUAN, Shouyi ZHANG, Pingjian YU, Ryan B. REAGAN, Tianyi MAO, Shangeetha Ravichandran SUSSEELAA, Zhenyu WANG, Feiyun ZHU
  • Publication number: 20240265663
    Abstract: Systems and methods of pairing product labels with products located on a product storage structure of a product storage facility include an image capture device that captures one or more images of the product storage structure and a computing device that obtains images of the product storage structure captured by the image capture device, analyzes the obtained images to detect product labels and products located on the product storage structure, and crops the detected individual products and individual price tag labels from the images to generate cropped images. Then the computing device stitches the cropped price tag label and product images, receives one or more characters extracted from the portions of the stitched images corresponding to the cropped images, and associates, based on known positional coordinates of the products and product labels in the stitched images, the received extracted characters with corresponding cropped images of the products and product labels.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 8, 2024
    Inventors: Zhaoliang Duan, Mingquan Yuan, Paul Lewis Lobo, Lingfeng Zhang, Avinash M. Jade, Yutao Tang
  • Publication number: 20240220958
    Abstract: A transaction record is created showing a purchase transaction of a customer. A CV profile showing a list of items in the transaction obtained from images is also obtained. The items in the transaction record are compared to items on the list. When there is a discrepancy, an action to take is determined.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 4, 2024
    Inventors: Zhichun Xiao, Lingfeng Zhang, Jon Hammer, Joseph Duffy, Yao Liu, Sicong Fang, Xiang Yao, Pingyuan Wang, Yu Tao, Tianyi Mao, Yutao Tang, Feiyun Zhu, Han Zhang, Chunmei Wang, Pingjian Yu, Muzzammil Afroz, Haining Liu
  • Patent number: 12002080
    Abstract: There are provided systems and methods relating to checking and confirming merchandise purchased at shopping facilities. In one form, the system includes: a shopping cart containing merchandise items to be purchased; a sales transaction database; a point-of-sales system that creates transaction records identified by transaction identifiers; and a mobile device used by an employee that includes a sensor to scan a paper or digital receipt to obtain the transaction identifier and a camera to capture images of the items in the shopping cart. The system also includes a control circuit that receives the transaction identifier, accesses the database using the identifier to determine the purchased items; analyzes the images of the merchandise items in the shopping cart and creates a computer vision receipt listing detected items; compares the purchased items with the detected items; and takes an action if there is a discrepancy.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: June 4, 2024
    Assignee: Walmart Apollo, LLC
    Inventors: Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang, Sicong Fang, Haining Liu, Yijing Sun, Mingquan Yuan, Shouyi Zhang, Pingjian Yu, Ryan B. Reagan, Tianyi Mao, Shangeetha Ravichandran Susseelaa, Zhenyu Wang, Feiyun Zhu
  • Patent number: 11966900
    Abstract: A transaction record is created showing a purchase transaction of a customer. A CV profile showing a list of items in the transaction obtained from images is also obtained. The items in the transaction record are compared to items on the list. When there is a discrepancy, an action to take is determined.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: April 23, 2024
    Assignee: Walmart Apollo, LLC
    Inventors: Zhichun Xiao, Lingfeng Zhang, Jon Hammer, Joseph Duffy, Yao Liu, Sicong Fang, Xiang Yao, Pingyuan Wang, Yu Tao, Tianyi Mao, Yutao Tang, Feiyun Zhu, Han Zhang, Chunmei Wang, Pingjian Yu, Muzzammil Afroz, Haining Liu
  • Patent number: 11951814
    Abstract: The embodiments of the disclosure provide an intelligent glass and an intelligent window system, and relates to the technical field of window display. The intelligent glass of the disclosure includes a touch display assembly and a glass assembly. The touch display assembly is communicatively coupled to the glass assembly, and is configured to send a corresponding dimming instruction to the glass assembly based on a received touch instruction, such that the glass assembly adjusts its light transmittance based on the dimming instruction.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongbo Wang, Chen Meng, Zhong Hu, Yutao Tang, Wenjie Zhong, Dahai Hu, Wei Shi
  • Patent number: 11852929
    Abstract: The present disclosure relates to a dimming glass window assembly, and the dimming glass window assembly includes a window frame, and a dimming glass located in the window frame, where the dimming glass includes a first glass layer and a second glass layer which are opposite to each other and spaced apart, a dimming function layer and a sealant layer which are arranged between the first glass layer and the second glass layer, the dimming function layer is located in a sealed space bound by the sealant layer, the first glass layer and the second glass layer. The dimming glass further includes a control line unit connected to an external dimming controller, the control line unit includes: a flexible printed circuit, a first circuit board, a second circuit board and a signal line.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: December 26, 2023
    Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhong Hu, Chen Meng, Jiarong Liu, Yutao Tang, Yongbo Wang
  • Publication number: 20230245535
    Abstract: In some embodiments, apparatuses and methods are provided herein useful to self-checkout verification at a retail facility. In some embodiments, there is provided a system for self-checkout verification at a retail facility including a first optical imaging unit; and a control circuit. The control circuit configured to: receive purchase receipt data; receive one or more images of the items in the container; and execute a machine learning model trained to: perform item detection, item classification, and item verification of each item shown in the one or more images; and output electronic data corresponding to an electronic receipt of the items in the container. The control circuit may automatically detect each unpaid item in the container based on a comparison of the purchase receipt data with the electronic data; and provide an alert signal in response to automatically detecting an unpaid item.
    Type: Application
    Filed: January 27, 2023
    Publication date: August 3, 2023
    Inventors: Zhichun Xiao, Lingfeng Zhang, Yutao Tang, Mingquan Yuan, Tianyi Mao, Han Zhang, Chunmei Wang, Feiyun Zhu, Zhaoliang Duan, Yanmei Jin, Jing Wang, Wei Wang, Ranran Cao, Zhiwei Huang
  • Patent number: 11698543
    Abstract: The present disclosure discloses a dimming method for a dimming glass, including: in response to a dimming level selected from a user, obtaining a light transmittance value corresponding to the selected dimming level according to a corresponding relationship between dimming levels and actual light transmittance of the dimming glass; obtaining a dimming voltage value corresponding to the light transmittance value according to a corresponding relationship between the actual light transmittance and dimming voltages of the dimming glass; and adjusting a voltage applied to the dimming glass to the obtained dimming voltage value, wherein the corresponding relationship between the dimming levels and the actual light transmittance of the dimming glass is dividing an adjustable range of the actual light transmittance of the dimming glass to obtain the actual light transmittance corresponding to different dimming levels. The present disclosure improves dimming effect of dimming glass.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: July 11, 2023
    Assignees: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Guo Liu, Chen Meng, Zhong Hu, Jiarong Liu, Qinhao Piao, Yutao Tang, Xiantao Liu, Binbin Liu
  • Publication number: 20230131509
    Abstract: The embodiments of the disclosure provide an intelligent glass and an intelligent window system, and relates to the technical field of window display. The intelligent glass of the disclosure includes a touch display assembly and a glass assembly. The touch display assembly is communicatively coupled to the glass assembly, and is configured to send a corresponding dimming instruction to the glass assembly based on a received touch instruction, such that the glass assembly adjusts its light transmittance based on the dimming instruction.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 27, 2023
    Inventors: Yongbo WANG, Chen MENG, Zhong HU, Yutao TANG, Wenjie ZHONG, Dahai HU, Wei SHI
  • Patent number: 11614645
    Abstract: A dimming glass includes: a first base substrate and a second base substrate that are oppositely disposed, a dye liquid crystal layer disposed between the first base substrate and the second base substrate, and at least one temperature sensor disposed between the first base substrate and the second base substrate. The at least one temperature sensor is configured to detect a temperature of the dye liquid crystal layer.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 28, 2023
    Assignees: BEIJING BOE SENSOR TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhong Hu, Chen Meng, Yongbo Wang, Yutao Tang, Wei Shi, Binbin Liu, Jiarong Liu, Dahai Hu, Wenjie Zhong