Patents by Inventor Peiliang LI
Peiliang LI 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: 11906983Abstract: A method of tracking a movement of a target by an unmanned aerial vehicle (UAV), the method includes receiving, from a mobile terminal collocating with the target, absolute location coordinate data of the target, acquiring, by a camera of the UAV, image data of the target, determining, based on the absolute location coordinate data and the image data of the target, 3D location coordinate data of the target with respect to the UAV, and controlling, based on the 3D location coordinate data of the target with respect to the UAV, at least one of a direction or a speed of the movement of the UAV, to maintain a constant relative 3D position of the UAV with respect to the target.Type: GrantFiled: October 18, 2021Date of Patent: February 20, 2024Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Cong Zhao, Xuyang Feng, Jie Qian, Qifeng Wu
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Publication number: 20230350428Abstract: A computer-implemented method for controlling a UAV includes identifying a set of target markers based on a plurality of images captured by an imaging device carried by the UAV, and controlling the UAV to fly based on the set of target markers. The set of target markers include at least two or more types of target markers and are in close proximity to be detected within a same field of view of the imaging device. Controlling the UAV to fly includes controlling the UAV to approach the set of target markers based at least in part on a spatial relationship between the UAV and a first type of target marker; and determining whether to control the UAV to land at or near the set of target markers based on information conveyed by a second type of target marker.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Inventors: Peiliang LI, Xuyang FENG, Cong ZHAO, Jie QIAN, You ZHOU
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Patent number: 11795533Abstract: A heat-resistant and soluble magnesium alloy, and a preparation method having an elemental composition at the following atomic percentage: Lu 0.10% to 8.00%, Ce 0.001 to 0.05%, Al 0.10% to 0.60%, Ca 0.001% to 0.50%, Cu 0.01% to 1.00%, Ni 0.01% to 1.00%, impurity elements <0.30%, and the rest is Mg, and formed in magnesium alloys are high temperature phase of Lu5Mg24, Mg2Cu, Mg2Ni, Mg12Ce, Al11Ce3 and (Mg, Al)2Ca, and Long Period Stacking Ordered (LPSO) phases as Mg—Lu—Al and Mg—Ce—Al. The magnesium alloy has good mechanical performances at 150° C., and a dissolution rate of 30 to 100 mg·cm?2h?1 in a 3% KCl solution at 93° C.Type: GrantFiled: May 13, 2020Date of Patent: October 24, 2023Assignees: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCESInventors: Jixue Zhou, Yunteng Liu, Dongqing Zhao, Baichang Ma, Meifang Wang, Peiliang Li, Cong Liu, Shouqiu Tang
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Patent number: 11693428Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes identifying a set of target markers based on a plurality of images captured by an imaging device carried by the UAV. The set of target markers includes at least two or more types of target markers that are in close proximity to be detected within a same field of view of the imaging device. The method further includes determining a spatial relationship between the UAV and the set of target markers based at least in part on the plurality of images, and controlling the UAV to approach the set of target markers based at least in part on the spatial relationship while controlling the imaging device to track the set of target markers such that the set of target markers remains within the same field of view of the imaging device.Type: GrantFiled: December 6, 2021Date of Patent: July 4, 2023Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Xuyang Feng, Cong Zhao, Jie Qian, You Zhou
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Patent number: 11513511Abstract: A control terminal for controlling an unmanned aerial vehicle (UAV) includes a processor and a storage medium storing instructions that, when executed by the processor, cause the processor to render an image on a user interface of the control terminal. The image is captured by an imaging device coupled to the UAV and is associated with a view of the imaging device. The instructions further cause the processor to detect, via the user interface, a gesture-based input including one or more reference points in the image and indicating a view change of the imaging device, determine a type of the gesture-based input by analyzing the one or more reference points, and generate control data based on the type of the gesture-based input to control at least one of the UAV or the imaging device for the view change of the imaging device.Type: GrantFiled: October 1, 2020Date of Patent: November 29, 2022Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Jie Qian, Cong Zhao, Xuyang Feng, You Zhou
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Patent number: 11353891Abstract: A method for controlling a movable object includes obtaining an expected height of the movable object, obtaining a measured height of the movable object relative to a ground, and controlling a height of the movable object according to the expected height and the measured height.Type: GrantFiled: November 26, 2018Date of Patent: June 7, 2022Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Jie Qian, Xuyang Feng, Peiliang Li
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Patent number: 11351585Abstract: A method for preparing a high-strength extruded profile of an Mg—Zn—Sn—Mn alloy is composed of a solid solution treatment at two stages to a billet, a high-temperature pre-aging to the billet, a low-temperature rapid extrusion and a low-temperature aging treatment to a profile. The Mg—Zn—Sn—Mn alloy includes the following elements in mass percent: 5.8-6.2% of Zn, 3.0-3.5% of Sn, 0.25-0.45% of Mn, unavoidable impurities of 0.05% or less, and the balance magnesium. The Mg—Zn—Sn—Mn magnesium alloy profile has a fine grain size of about 10-20 ?m and a dispersed second phase, so a high strength and a good elongation can be obtained therein, and a tensile strength of 350 MPa or more, a yield strength of 280 MPa or more, and the elongation of 12% or more. In addition, the profile has a high extrusion production efficiency and a high yield, and a low extrusion cost.Type: GrantFiled: February 24, 2020Date of Patent: June 7, 2022Assignees: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCESInventors: Jixue Zhou, Yunteng Liu, Dongqing Zhao, Baichang Ma, Meifang Wang, Peiliang Li, Cong Liu, Shouqiu Tang
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Publication number: 20220091618Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes identifying a set of target markers based on a plurality of images captured by an imaging device carried by the UAV. The set of target markers includes at least two or more types of target markers that are in close proximity to be detected within a same field of view of the imaging device. The method further includes determining a spatial relationship between the UAV and the set of target markers based at least in part on the plurality of images, and controlling the UAV to approach the set of target markers based at least in part on the spatial relationship while controlling the imaging device to track the set of target markers such that the set of target markers remains within the same field of view of the imaging device.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Inventors: Peiliang LI, Xuyang FENG, Cong ZHAO, Jie QIAN, You ZHOU
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Publication number: 20220033076Abstract: A method of tracking a movement of a target by an unmanned aerial vehicle (UAV), the method includes receiving, from a mobile terminal collocating with the target, absolute location coordinate data of the target, acquiring, by a camera of the UAV, image data of the target, determining, based on the absolute location coordinate data and the image data of the target, 3D location coordinate data of the target with respect to the UAV, and controlling, based on the 3D location coordinate data of the target with respect to the UAV, at least one of a direction or a speed of the movement of the UAV, to maintain a constant relative 3D position of the UAV with respect to the target.Type: ApplicationFiled: October 18, 2021Publication date: February 3, 2022Inventors: Peiliang LI, Cong ZHAO, Xuyang FENG, Jie QIAN, Qifeng WU
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Patent number: 11194344Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes detecting a target marker based on a plurality of images captured by an imaging device carried by the UAV, determining a spatial relationship between the UAV and the target marker based at least in part on the plurality of images, and controlling the UAV to approach the target marker based at least in part on the spatial relationship while controlling the imaging device to track the target marker such that the target marker remains within a field of view of the imaging device.Type: GrantFiled: February 26, 2019Date of Patent: December 7, 2021Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Xuyang Feng, Cong Zhao, Jie Qian, You Zhou
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Patent number: 11148804Abstract: A method of tracking a movement of a target by an unmanned aerial vehicle (UAV) includes determining a distance between the target and the UAV, acquiring image data of the target by a camera of the UAV, determining two-dimensional pixel coordinate data associated with a plurality of features of the target from the image data, determining a physical dimension based on the two-dimensional pixel coordinate data and the distance, and determining three-dimensional location coordinate data of the target with respect to the UAV based on the physical dimension and at least one of the two-dimensional pixel coordinate data or the distance.Type: GrantFiled: January 31, 2019Date of Patent: October 19, 2021Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Cong Zhao, Xuyang Feng, Jie Qian, Qifeng Wu
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Publication number: 20210018910Abstract: A control terminal for controlling an unmanned aerial vehicle (UAV) includes a processor and a storage medium storing instructions that, when executed by the processor, cause the processor to render an image on a user interface of the control terminal. The image is captured by an imaging device coupled to the UAV and is associated with a view of the imaging device. The instructions further cause the processor to detect, via the user interface, a gesture-based input including one or more reference points in the image and indicating a view change of the imaging device, determine a type of the gesture-based input by analyzing the one or more reference points, and generate control data based on the type of the gesture-based input to control at least one of the UAV or the imaging device for the view change of the imaging device.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Inventors: Peiliang LI, Jie QIAN, Cong ZHAO, Xuyang FENG, You ZHOU
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Publication number: 20200389595Abstract: An image processing method includes obtaining an image frame through an imaging device over a period of time. The image frame includes a plurality of groups of pixels that are exposed to light at different time points within the period of time. The method further includes obtaining attitude information of the imaging device during the period of time, deriving positional state of an individual group of pixels in the plurality of groups of pixels based on the attitude information of the imaging device, and processing the image frame using the positional state.Type: ApplicationFiled: August 25, 2020Publication date: December 10, 2020Inventors: You ZHOU, Cong ZHAO, Jie QIAN, Peiliang LI
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Publication number: 20200370156Abstract: A heat-resistant and soluble magnesium alloy, and a preparation method having an elemental composition at the following atomic percentage: Lu 0.10% to 8.00%, Ce 0.001 to 0.05%, Al 0.10% to 0.60%, Ca 0.001% to 0.50%, Cu 0.01% to 1.00%, Ni 0.01% to 1.00%, impurity elements <0.30%, and the rest is Mg, and formed in magnesium alloys are high temperature phase of Lu5Mg24, Mg2Cu, Mg2Ni, Mg12Ce, Al11Ce3 and (Mg, Al)2Ca, and Long Period Stacking Ordered (LPSO) phases as Mg—Lu—Al and Mg—Ce—Al. The magnesium alloy has good mechanical performances at 150° C., and a dissolution rate of 30 to 100 mg·cm?2h?1 in a 3% KCl solution at 93° C.Type: ApplicationFiled: May 13, 2020Publication date: November 26, 2020Applicants: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCESInventors: Jixue ZHOU, Yunteng LIU, Dongqing ZHAO, Baichang MA, Meifang WANG, Peiliang LI, Cong LIU, Shouqiu TANG
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Patent number: 10802479Abstract: A system for controlling an unmanned aerial vehicle (UAV) includes a processor and a storage medium storing instructions that, when executed by the processor, cause the processor to receive image data from a camera coupled to the UAV that is associated with a first view of the camera, send the image data in real time to a client device, and receive control data from the client device. The control data is associated one or more reference coordinates corresponding to a gesture-based input indicating a change from the first view to a second view of the camera. The gesture-based input is associated with at least one region of the image data. The instructions further cause the processor to control the UAV to change at least one of a position or an attitude of the UAV based on the control data.Type: GrantFiled: November 23, 2018Date of Patent: October 13, 2020Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: Peiliang Li, Jie Qian, Cong Zhao, Xuyang Feng, You Zhou
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Patent number: 10771699Abstract: An image processing method includes obtaining an image frame through an imaging device over a period of time. The image frame includes a plurality of groups of pixels that are exposed to light at different time points within the period of time. The method further includes obtaining attitude information of the imaging device during the period of time, deriving positional state of an individual group of pixels in the plurality of groups of pixels based on the attitude information of the imaging device, and processing the image frame using the positional state.Type: GrantFiled: November 8, 2018Date of Patent: September 8, 2020Assignee: SZ DJI TECHNOLOGY CO., LTD.Inventors: You Zhou, Cong Zhao, Jie Qian, Peiliang Li
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Publication number: 20200269298Abstract: A method for preparing a high-strength extruded profile of an Mg—Zn—Sn—Mn alloy is composed of a solid solution treatment at two stages to a billet, a high-temperature pre-aging to the billet, a low-temperature rapid extrusion and a low-temperature aging treatment to a profile. The Mg—Zn—Sn—Mn alloy includes the following elements in mass percent: 5.8-6.2% of Zn, 3.0-3.5% of Sn, 0.25-0.45% of Mn, unavoidable impurities of 0.05% or less, and the balance magnesium. The Mg—Zn—Sn—Mn magnesium alloy profile has a fine grain size of about 10-20 ?m and a dispersed second phase, so a high strength and a good elongation can be obtained therein, and a tensile strength of 350 MPa or more, a yield strength of 280 MPa or more, and the elongation of 12% or more. In addition, the profile has a high extrusion production efficiency and a highyield, and a low extrusion cost.Type: ApplicationFiled: February 24, 2020Publication date: August 27, 2020Applicants: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCESInventors: Jixue ZHOU, Yunteng LIU, Dongqing ZHAO, Baichang MA, Meifang WANG, Peiliang LI, Cong LIU, Shouqiu TANG
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Publication number: 20190317502Abstract: A method for controlling an unmanned aerial vehicle (“UAV”) includes detecting a first operation on an interactive interface. The method also includes determining a flight mode of the UAV triggered by the first operation, and controlling the UAV to fly in the flight mode.Type: ApplicationFiled: May 31, 2019Publication date: October 17, 2019Inventors: Zhuo GUO, Peiliang LI
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Publication number: 20190187297Abstract: A method for locating a moving object includes obtaining an approximate displacement of the moving object between a first time point and a second time point based on location measurements of the moving object at the first time point and the second time point, processing inertial measurements of the moving object at a plurality of interval time points between the first time point and the second time point to acquire movement characteristics of the moving object between the first time point and the second time point, and determining an estimated displacement of the moving object at one of the interval time points between the first time point and the second time point based on the acquired movement characteristics of the moving object and the approximate displacement of the moving object between the first time point and the second time point.Type: ApplicationFiled: February 20, 2019Publication date: June 20, 2019Inventors: Peiliang LI, Jie QIAN, Cong ZHAO, Xuyang FENG
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Publication number: 20190187724Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes detecting a target marker based on a plurality of images captured by an imaging device carried by the UAV, determining a spatial relationship between the UAV and the target marker based at least in part on the plurality of images, and controlling the UAV to approach the target marker based at least in part on the spatial relationship while controlling the imaging device to track the target marker such that the target marker remains within a field of view of the imaging device.Type: ApplicationFiled: February 26, 2019Publication date: June 20, 2019Inventors: Peiliang LI, Xuyang FENG, Cong ZHAO, Jie QIAN, You ZHOU