Patents by Inventor Zhiwei Qin

Zhiwei Qin 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: 20200413317
    Abstract: This disclosure relates to techniques for performing radio link monitoring and cell searching when moving at high speeds. A movement speed of a wireless device may be determined. When performing a cell search, the manner of the cell search may depend on the movement speed of the wireless device, potentially including cells that are associated with high movement speed being more highly prioritized when the wireless device is determined to be at a higher movement speed than when the wireless device is determined to be at a lower movement speed.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Jishan Gao, Yong Zhong, Shangfeng Li, Lijie Zhang, Qiang Miao, Ying Zhang, Yaoqi Yan, Zhiwei Wang, Tao Xie, Junzhen Qin
  • Publication number: 20200405255
    Abstract: The present disclosure provides a method and apparatus for detecting a dose distribution of an article. The method includes performing a fluoroscopy scanning on the article to be detected, to obtain mass data per unit area or unit volume for each point of the article to be detected; obtaining corresponding dose distribution data based on the mass data per unit area or unit volume and a preset mapping model, wherein the preset mapping model includes a mapping relationship between mass per unit area or unit volume and the dose distribution of the article under irradiation of a preset amount of energy; and matching the dose distribution data with a fluoroscopy image of the article to be detected, to generate and display a radiation image.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventors: Zhiqiang Chen, Yuanjing Li, Zhiwei Han, Guang Yang, Huaili Qin, Wenyuan Qi, Shan Kuang, Aifeng Liang, Yanqin Liu
  • Patent number: 10844287
    Abstract: The present invention provides a method for preparing gasoline and aromatics by using Fischer-Tropsch synthesis exhaust. The method includes conducting an olefin conversion reaction on Fischer-Tropsch synthesis exhaust under the action of a first molecular sieve catalyst. A first refrigeration or cooling is conducted on an obtained product to obtain ultralow sulfur-containing gasoline and first-stage reaction gas. An alkaline aromatization reaction is conducted on the first-stage reaction gas under the action of a second molecular sieve catalyst. A second refrigeration or cooling is conducted on an obtained product to obtain aromatics. After the olefin conversion reaction, a gasoline component is separated and residual alkanes enter a second-stage fluidized bed reactor for the alkane aromatization reaction to produce aromatics.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: November 24, 2020
    Assignee: INSTITUTE OF COAL CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Weibin Fan, Jianguo Wang, Zhiwei Wu, Mei Dong, Zhangfeng Qin, Huaqing Zhu, Junfen Li, Weiyong Jiao
  • Publication number: 20200364627
    Abstract: A ride order dispatching system comprises a processor, and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the processor to perform a method. The method comprises: obtaining, from a computing device, a current location of a vehicle; inputting the current location of the vehicle and a time to a trained neural network model to obtain action information for the vehicle, the action information comprising: staying at the current location of the vehicle, re-positioning the vehicle, or accepting a ride order; and transmitting the action information to the computing device to cause the vehicle to stay at the current location, re-position to another location, or accept the ride order by proceeding to a pick-up location of the ride order.
    Type: Application
    Filed: September 5, 2018
    Publication date: November 19, 2020
    Inventors: Zhiwei QIN, Xiaocheng TANG
  • Publication number: 20200351242
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: Tao HUANG, Shuaiji LI, Yinhong CHANG, Fangfang ZHANG, Zhiwei QIN
  • Patent number: 10820248
    Abstract: This disclosure relates to techniques for performing radio link monitoring and cell searching when moving at high speeds. A movement speed of a wireless device may be determined. When performing a cell search, the manner of the cell search may depend on the movement speed of the wireless device, potentially including cells that are associated with high movement speed being more highly prioritized when the wireless device is determined to be at a higher movement speed than when the wireless device is determined to be at a lower movement speed.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: October 27, 2020
    Assignee: Apple Inc.
    Inventors: Jishan Gao, Yong Zhong, Shangfeng Li, Lijie Zhang, Qiang Miao, Ying Zhang, Yaoqi Yan, Zhiwei Wang, Tao Xie, Junzhen Qin
  • Patent number: 10764246
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 1, 2020
    Assignee: DiDi Research America, LLC
    Inventors: Tao Huang, Shuaiji Li, Yinhong Chang, Fangfang Zhang, Zhiwei Qin
  • Publication number: 20200273347
    Abstract: Hierarchical multi-agent reinforcement learning may be used for joint order dispatching and fleet management for ride-sharing platforms. Information may be obtained. The information may include a status of a ride-sharing platform and a set of messages. The obtained information may be input into a trained hierarchical reinforcement learning (HRL) model. The trained HRL model may include at least one manager module corresponding to a region, and the at least one manager module may include a set of worker modules each corresponding to a division the region. At least one goal of the division in the region may be obtained based on the status of the ride-sharing platform and the set of messages. A vehicle action may be generated for each vehicle in the division in the region based on the status of the ride-sharing platform, the set of messages, and the at least one goal.
    Type: Application
    Filed: December 19, 2019
    Publication date: August 27, 2020
    Inventors: Jiao YAN, Zhiwei QIN
  • Publication number: 20200273346
    Abstract: Multi-agent reinforcement learning may be used for rider order-dispatching via matching the distribution of orders and vehicles. Information may be obtained. The information may include a plurality of vehicle locations of a plurality of vehicles, a plurality of ride orders, and a current time. The obtained information may be input into a trained model. The trained model may be based on Kullback-Leibler divergence optimization and independent agents under a guidance of a joint policy. A plurality of order-dispatching tasks may be generated for the plurality of vehicles to fulfill.
    Type: Application
    Filed: December 19, 2019
    Publication date: August 27, 2020
    Inventors: Chenxi WANG, Zhiwei QIN
  • Publication number: 20200201953
    Abstract: A method to simulate a circuit includes receiving at least one circuit requirement and at least one Modular Multilevel Converter (MMC) parameter; determining an operating mode and switching states of an arm circuit; determining each capacitor current based on the switching states and an arm current; determining capacitor voltage and arm voltage; and generating an equivalent circuit model to simulate MMC-based HVDC systems and DC grids in a hybrid AC and DC power system.
    Type: Application
    Filed: September 6, 2019
    Publication date: June 25, 2020
    Inventors: Di Shi, Xiaoying Zhao, Feng Xue, Wei Li, Huimin Peng, Jiangchao Qin, Chaoyang Jing, Zhiwei Wang
  • Publication number: 20200190676
    Abstract: A graphene ternary composite direct current-carrying plate includes an anode plate and a cathode plate. Placed between the anode plate and the cathode plate is a graphene composite layer. The graphene composite layer is doped with a certain proportion of graphene in the aluminum mesh frame. The plate of the invention has small thickness, low ohmic voltage drop, good porosity, and low current loss. This reduces the electrolysis power consumption, thereby significantly reducing the product cost and effectively promoting the industrial production market of the sodium chlorate electrolysis method. The plate also reduces energy consumption and is environmentally friendly.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 18, 2020
    Inventors: Shuangfei WANG, Yang LIU, Chengrong QIN, ZHAN LEI, Shuangxi NIE, Shuangquan YAO, Chen LIANG, Xinliang LIU, Zhiwei WANG
  • Publication number: 20200194770
    Abstract: The patent provides a method for preparing titanium-based active electrodes with high stability coating layer, which belongs to the field of electrochemistry. The patent describes the active electrode is used titanium as the substrate, multi-metal oxides as the activated catalytic layer, and dense oxides as the protective layer. The multi-metal catalytic layer is formed by pyrolysis method to form the main body of titanium-based catalytic layer, and the dense oxide protective layer is combined with Sol-gel method and electrochemical deposition method to form a dense protective layer of titanium base. It can be widely used in chlor-alkali industry, paper industry, sewage treatment and other fields.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 18, 2020
    Inventors: Shuangfei WANG, Xinliang LIU, Chengrong QIN, Zhan LEI, Shuangxi NIE, Shuangquan YAO, Chen LIANG, Yang LIU, Zhiwei WANG
  • Publication number: 20200193834
    Abstract: A method for ride order dispatching comprises: obtaining a current location of a current vehicle from a computing device associated with the current vehicle; obtaining a current list of available orders nearby based on the current location; feeding the current location, the current list of available orders nearby, and a current time to a trained Markov Decision Process (MDP) model to obtain action information, the action information being repositioning the current vehicle to another current location or completing a current ride order by the current vehicle; and transmitting the generated action information to the computing device to cause the current vehicle to reposition to the another current location, stay at the current location, or accept the current ride order by proceeding to a pick-up location of the current ride order.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Zhiwei QIN, Fei FENG
  • Publication number: 20200157433
    Abstract: The present invention provides a method for preparing gasoline and aromatics by using Fischer-Tropsch synthesis exhaust. The method includes conducting an olefin conversion reaction on Fischer-Tropsch synthesis exhaust under the action of a first molecular sieve catalyst. A first refrigeration or cooling is conducted on an obtained product to obtain ultralow sulfur-containing gasoline and first-stage reaction gas. An alkaline aromatization reaction is conducted on the first-stage reaction gas under the action of a second molecular sieve catalyst. A second refrigeration or cooling is conducted on an obtained product to obtain aromatics. After the olefin conversion reaction, a gasoline component is separated and residual alkanes enter a second-stage fluidized bed reactor for the alkane aromatization reaction to produce aromatics.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 21, 2020
    Inventors: Weibin FAN, Jianguo WANG, Zhiwei WU, Mei DONG, Zhangfeng QIN, Huaqing ZHU, Junfen LI, Weiyong JIAO
  • Patent number: 10650344
    Abstract: A method of determining an inventory mirroring plan for a set of distinct items in a heterogeneous fulfillment network is presented. The fulfillment network can include a plurality of distribution centers, each distribution center having differing capabilities. The method can include determining a solution value of the number of clusters for each distinct item that minimizes a sum of a total shipping cost of each distinct item, subject to a total distinct item capacity of the plurality of distribution centers in the fulfillment network. The method can further include using a probability of the item being placed in a specific distribution center based on either the capacity of the distribution center or historical data. The probability can be used to stock items. Overages and deficits can be used to further refine the distribution. Other embodiments are also disclosed.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: May 12, 2020
    Assignee: WALMART APOLLO, LLC
    Inventor: Zhiwei Qin
  • Patent number: 10639681
    Abstract: The invention discloses an automatic powder cleaning system for mixed-line hub bolt holes and a combined powder cleaning gun. The powder cleaning system comprises a control system, a recognition system, a powder cleaning robot, a gun storage and an accessory device. A plurality of combined powder spraying guns are arranged in the gun storage, and a quick disassembly fixture is arranged at the end of the powder cleaning robot.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: May 5, 2020
    Assignee: CITIC Dicastal Co., Ltd.
    Inventors: Zaide Wang, Huanming Ma, Hongtao Wang, Zhiliang Zhang, Qingwang Wei, Zhiwei Qin
  • Patent number: 10635764
    Abstract: A method for providing vehicle navigation simulation environment may comprise recursively performing steps (1)-(4) for a time period: (1) providing one or more states of a simulation environment to a simulated agent, wherein: the simulated agent comprises a simulated vehicle, and the states comprise a first current time and a first current location of the simulated vehicle; (2) obtaining an action by the simulated vehicle when the simulated vehicle has no passenger, wherein the action is selected from: waiting at the first current location of the simulated vehicle, and transporting M passenger groups; (3) determining a reward to the simulated vehicle for the action; and (4) updating the one or more states based on the action to obtain one or more updated states for providing to the simulated vehicle, wherein: the updated states comprise a second current time and a second current location of the simulated vehicle.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 28, 2020
    Assignee: DiDi Research America, LLC
    Inventors: Zhiwei Qin, Ishan Jindal, Xuewen Chen
  • Publication number: 20200128467
    Abstract: This disclosure relates to techniques for performing radio link monitoring and cell searching when moving at high speeds. A movement speed of a wireless device may be determined. When performing a cell search, the manner of the cell search may depend on the movement speed of the wireless device, potentially including cells that are associated with high movement speed being more highly prioritized when the wireless device is determined to be at a higher movement speed than when the wireless device is determined to be at a lower movement speed.
    Type: Application
    Filed: May 4, 2017
    Publication date: April 23, 2020
    Inventors: Jishan Gao, Yong Zhong, Shangfeng Li, Lijie Zhang, Qiang Miao, Ying Zhang, Yaoqi Yan, Zhiwei Wang, Tao Xie, Junzhen Qin
  • Publication number: 20200111027
    Abstract: Systems and methods for providing recommendations based on seeded supervised learning are disclosed. The method may include acquiring, through a communication network, similarity data associated with a first entity, a second entity, and a third entity, and acquiring, through the communication network, external data associated with the first entity and the second entity. The method may further include training a classification model based on the external data and the similarity data. The method may also include determining an expectation score of the third entity based on classification model, and providing, through the communication network, a recommendation based on the expectation score to the third entity.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Zhiwei QIN, Chengxiang ZHUO, Wei TAN, Jun XIE
  • Publication number: 20200074354
    Abstract: Systems and methods are provided for ride order dispatching and vehicle repositioning. A method for ride order dispatching and vehicle repositioning, comprises: obtaining information comprising a location of a vehicle, current orders, and a current time; inputting the obtained information to a trained model; and determining action information for the vehicle based on an output of the trained model, the action information comprising: re-positioning the vehicle or accepting a ride order. The model is configured with: receiving information of drivers and information of orders as inputs; obtaining a global state based on the information of drivers, the information of orders, and a global time; and querying a plurality of driver-order pairs and driver-reposition pairs based at least on the obtained global state to determine the action information as the output.
    Type: Application
    Filed: December 31, 2018
    Publication date: March 5, 2020
    Inventors: Zhiwei QIN, Xiaocheng TANG, Yan JIAO, Chenxi WANG