Patents by Inventor Nian Li
Nian 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: 11971319Abstract: A surface electromyography signal-torque matching method based on multi-segmentation parallel CNN model (MSP-CNN model), step 1: collecting torque signals and surface electromyography (sEMG) signals when tightening a bolt; step 2: dividing a range of a transducer by at least two granularities, generating a plurality of torque sub-ranges corresponding to the at least two granularities and labeling the plurality of torque sub-ranges with torque labels; step 3: generating sEMG graphs of the sEMG signals in each time window; step 4: determining the torque labels of each time window under each of the at least two granularities according to the torque sub-ranges that average values of torques fall in; step 5: establishing a sample set; step 6: building a MSP-CNN model, and training parallel independent CNN models with sample datasets; and step 7: inputting the sEMG signals of the operator during assembly into trained MSP-CNN model and identifying assembly torques.Type: GrantFiled: May 7, 2020Date of Patent: April 30, 2024Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, XI'AN JIAOTONG UNIVERSITYInventors: Cheng Jun Chen, Kai Huang, Dong Nian Li, Shuai Zheng, Jun Hong
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Patent number: 11969904Abstract: A registration system for robot-oriented augmented reality teaching system, comprising: a physical robot unit, a registration unit, a virtual robot generation unit and a computer; the physical robot unit comprising a physical robot, a physical robot controller and a robot point-to-point intermittent movement control program; the physical robot provided thereon with a physical robot base coordinate system; the physical robot controller connected with the physical robot and the computer respectively; the robot point-to-point intermittent movement control program installed in the computer; the registration unit comprising a registration marker, a camera and a conversion calculation unit; the registration marker arranged on the physical robot body; the camera fixed in a physical environment except the physical robot; the camera connected with the computer, and the conversion calculation unit arranged in the computer; the virtual robot generation unit arranged in the computer and used for generating a virtual roboType: GrantFiled: March 24, 2020Date of Patent: April 30, 2024Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Cheng Jun Chen, Xu Tong Ding, Yong Pan, Dong Nian Li, Jun Hong
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Publication number: 20240115713Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.Type: ApplicationFiled: July 21, 2021Publication date: April 11, 2024Inventors: Gaoquan LI, Nian LIU, Yongchen PENG, Xiafan ZENG, Gang MEI, Sheng GUAN, Yang GAO, Shuai YANG, Yifeng YIN, Jie LOU, Huiyu CHEN, Kun QIAN, Yusong WEI, Qian ZHANG, Dajun LI, Xiaoling DING, Xiangwei YANG, Liqun HUANG, Xi LIU, Liwei LIU, Zhenwei LI, Kaixiong HU, Hua LIU, Tao TU
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Publication number: 20240102256Abstract: A foldable windproof unit, a large-span windproof net structure thereof, and a windproof method are disclosed. The foldable windproof unit comprises a flexible windproof net, towers arranged at intervals, and a load-bearing rope erected on the two towers. The tower on one side is provided with a horizontal pulley assembly, and the tower on the other side is provided with two vertical pulleys. The top edge of the flexible windproof net is slidably connected to the load-bearing rope by means of a plurality of hanging structures. The foldable windproof unit further comprises a traction rope, the traction rope is arranged on the horizontal pulley assembly in a sleeving manner, and the two free ends of the traction rope extend to respectively bypass the two vertical pulleys and are connected to winding mechanism. The hanging structure close to the tower on one side is fixedly connected to the traction rope.Type: ApplicationFiled: November 29, 2022Publication date: March 28, 2024Applicant: SHIJIAZHUANG TIEDAO UNIVERSITYInventors: Qingkuan LIU, Xiaobing CHAI, Yifei SUN, Zhen LI, Xi WANG, Nian LIU, Yangxue WANG, Xing CHANG, Saifei FU
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Patent number: 11785092Abstract: A multimedia playing method includes obtaining, by a terminal, an identifier of a playback device, determining, by the terminal, a multimedia resource category based on a correspondence between the identifier and the multimedia resource category, playing, by the terminal via the playback device, a multimedia resource corresponding to the category. When the terminal is connected to different playback devices, the terminal may play multimedia resources of different categories via the playback devices based on identifiers of the playback devices, to implement an intelligent service of the terminal.Type: GrantFiled: April 7, 2020Date of Patent: October 10, 2023Assignee: PETAL CLOUD TECHNOLOGY CO., LTD.Inventors: Nian Li, Yuepeng Li
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Patent number: 11645827Abstract: The present invention relates to a detection method for an assembly body multi-view change based on feature matching, comprising the following steps: S1, acquiring a first image and a second image; S2, performing feature point extraction and feature matching on the first image and the second image to obtain a matching pair set, a first unmatched point set of the first image and a second unmatched point set of the second image; S3, acquiring a first to-be-matched area set of the first image according to the first unmatched point set; acquiring a second to-be-matched area set of the second image according to the second unmatched point set; S4, performing feature matching on each first unmatched area and each second unmatched area one by one to obtain a plurality of matching results; and S5, outputting the assembly body change type according to the plurality of matching results.Type: GrantFiled: June 11, 2021Date of Patent: May 9, 2023Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Cheng Jun Chen, Yao Shuai Yue, Dong Nian Li, Jun Hong
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Patent number: 11630972Abstract: An assembly change detection method based on attention mechanism, including: establishing a three-dimensional model of an assembly body, adding a tag to each part in the three-dimensional model, setting several assembly nodes, obtaining depth images of the three-dimensional model under each assembly node in different viewing angles, and obtaining a change tag image of a added part at each assembly node; selecting two depth images at front and back moments in different viewing angles as training samples; performing semantic fusion, feature extraction, attention mechanism processing and metric learning sequentially on the training samples, training a detection model, continuously selecting training samples to train the detection model, saving model parameters with optimal similarity during training, completing training; and obtaining depth images of successive assembly nodes during assembling the assembly body, inputting depth images into trained detection model, and outputting change image of added part of theType: GrantFiled: June 9, 2021Date of Patent: April 18, 2023Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Cheng Jun Chen, Chang Zhi Li, Dong Nian Li, Jun Hong
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Publication number: 20230054740Abstract: Embodiments of this application provide an audio generation method, a related apparatus, and a storage medium, to provide a better audio generation solution for a user. In embodiments of this application, a text is obtained, a song clip corresponding to the text is obtained through matching, and the song clip is used as audio corresponding to the text. In this way, the text can be expressed in a manner of the song clip.Type: ApplicationFiled: October 27, 2020Publication date: February 23, 2023Inventor: Nian LI
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Publication number: 20220358334Abstract: An assembly change detection method based on attention mechanism, including: establishing a three-dimensional model of an assembly body, adding a tag to each part in the three-dimensional model, setting several assembly nodes, obtaining depth images of the three-dimensional model under each assembly node in different viewing angles, and obtaining a change tag image of a added part at each assembly node; selecting two depth images at front and back moments in different viewing angles as training samples; performing semantic fusion, feature extraction, attention mechanism processing and metric learning sequentially on the training samples, training a detection model, continuously selecting training samples to train the detection model, saving model parameters with optimal similarity during training, completing training; and obtaining depth images of successive assembly nodes during assembling the assembly body, inputting depth images into trained detection model, and outputting change image of added part of theType: ApplicationFiled: June 9, 2021Publication date: November 10, 2022Inventors: CHENG JUN CHEN, CHANG ZHI LI, DONG NIAN LI, JUN HONG
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Publication number: 20220358321Abstract: The present invention relates to a detection method for an assembly body multi-view change based on feature matching, comprising the following steps: S1, acquiring a first image and a second image; S2, performing feature point extraction and feature matching on the first image and the second image to obtain a matching pair set, a first unmatched point set of the first image and a second unmatched point set of the second image; S3, acquiring a first to-be-matched area set of the first image according to the first unmatched point set; acquiring a second to-be-matched area set of the second image according to the second unmatched point set; S4, performing feature matching on each first unmatched area and each second unmatched area one by one to obtain a plurality of matching results; and S5, outputting the assembly body change type according to the plurality of matching results.Type: ApplicationFiled: June 11, 2021Publication date: November 10, 2022Inventors: CHENG JUN CHEN, YAO SHUAI YUE, DONG NIAN LI, JUN HONG
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Publication number: 20220324117Abstract: A registration system for robot-oriented augmented reality teaching system, comprising: a physical robot unit, a registration unit, a virtual robot generation unit and a computer; the physical robot unit comprising a physical robot, a physical robot controller and a robot point-to-point intermittent movement control program; the physical robot provided thereon with a physical robot base coordinate system; the physical robot controller connected with the physical robot and the computer respectively; the robot point-to-point intermittent movement control program installed in the computer; the registration unit comprising a registration marker, a camera and a conversion calculation unit; the registration marker arranged on the physical robot body; the camera fixed in a physical environment except the physical robot; the camera connected with the computer, and the conversion calculation unit arranged in the computer; the virtual robot generation unit arranged in the computer and used for generating a virtual roboType: ApplicationFiled: March 24, 2020Publication date: October 13, 2022Inventors: CHENG JUN CHEN, XU TONG DING, YONG PAN, DONG NIAN LI, JUN HONG
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Publication number: 20220191287Abstract: A multimedia playing method includes obtaining, by a terminal, an identifier of a playback device, determining, by the terminal, a multimedia resource category based on a correspondence between the identifier and the multimedia resource category, playing, by the terminal, via the playback device, a multimedia resource corresponding to the category. When the terminal is connected to different playback devices, the terminal may play multimedia resources of different categories via the playback devices based on identifiers of the playback devices, to implement an intelligent service of the terminal.Type: ApplicationFiled: April 7, 2020Publication date: June 16, 2022Inventors: Nian Li, Yuepeng Li
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Publication number: 20220113206Abstract: A surface electromyography signal-torque matching method based on multi-segmentation parallel CNN model (MSP-CNN model), step 1: collecting torque signals and surface electromyography (sEMG) signals when tightening a bolt; step 2: dividing a range of a transducer by at least two granularities, generating a plurality of torque sub-ranges corresponding to the at least two granularities and labeling the plurality of torque sub-ranges with torque labels; step 3: generating sEMG graphs of the sEMG signals in each time window; step 4: determining the torque labels of each time window under each of the at least two granularities according to the torque sub-ranges that average values of torques fall in; step 5: establishing a sample set; step 6: building a MSP-CNN model, and training parallel independent CNN models with sample datasets; and step 7: inputting the sEMG signals of the operator during assembly into trained MSP-CNN model and identifying assembly torques.Type: ApplicationFiled: May 7, 2020Publication date: April 14, 2022Inventors: CHENG JUN CHEN, KAI HUANG, DONG NIAN LI, SHUAI ZHENG, JUN HONG
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Patent number: 11238860Abstract: A terminal for implementing speech control records a correspondence between a first keyword text and a second keyword text. When a user inputs a speech, the terminal sends, to a first server for semantic parsing and logical parsing, the speech input by the user. Then, when the first server returns a parsing failure, the terminal obtains a parsed text returned by the first server, replaces the second keyword in the parsed text with the first keyword based on the correspondence, and then sends, to the first server, the text obtained after the replacement.Type: GrantFiled: June 13, 2017Date of Patent: February 1, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Nian Li
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Publication number: 20200218217Abstract: A system comprises a plurality of electronic devices and a server. Each of the plurality of electronic devices is configured to report a working status parameter to the server. The server is configured to receive working slams parameters from the plurality of electronic devices, determine a first electronic device being faulty from the plurality of electronic devices based on working status parameters sent by the plurality of electronic devices, and send an indication to a control device corresponding to the first electronic device. The server is further configured to receive a response from the control device indicating a request for maintenance of the first electronic device in response to a user's selection on the control device.Type: ApplicationFiled: March 31, 2017Publication date: July 9, 2020Inventor: Nian Li
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Publication number: 20200175980Abstract: A terminal for implementing speech control records a correspondence between a first keyword text and a second keyword text. When a user inputs a speech, the terminal sends, to a first server for semantic parsing and logical parsing, the speech input by the user. Then, when the first server returns a parsing failure, the terminal obtains a parsed text returned by the first server, replaces the second keyword in the parsed text with the first keyword based on the correspondence, and then sends, to the first server, the text obtained after the replacement.Type: ApplicationFiled: June 13, 2017Publication date: June 4, 2020Inventor: Nian Li
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Patent number: 10333562Abstract: A radio signal processing method and apparatus includes first receiving a receive command that is sent by a router and that carries a receive frequency and a sampling frequency; receiving a radio signal corresponding to the receive frequency according to the receive frequency; performing sampling processing on the radio signal according to the sampling frequency to obtain a digital signal, and sending the digital signal to the router.Type: GrantFiled: March 6, 2015Date of Patent: June 25, 2019Assignee: HUAWEI TECHNOLOGIES, CO., LTD.Inventor: Nian Li
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Publication number: 20180269907Abstract: A radio signal processing method and apparatus includes first receiving a receive command that is sent by a router and that carries a receive frequency and a sampling frequency; receiving a radio signal corresponding to the receive frequency according to the receive frequency; performing sampling processing on the radio signal according to the sampling frequency to obtain a digital signal, and sending the digital signal to the router.Type: ApplicationFiled: March 6, 2015Publication date: September 20, 2018Applicant: Huawei Technologies Co., Ltd.Inventor: Nian Li
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Patent number: 9952259Abstract: An apparatus and method for determining initial rotor position in a stationary state of an electric machine.Type: GrantFiled: August 18, 2016Date of Patent: April 24, 2018Assignee: Infineon Technologies AGInventor: Shi Nian Li
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Patent number: 9656234Abstract: An industrial microwave ultrasonic reactor has an inner wall liner. A microwave generation device is formed by microwave units distributed on an outer sidewall, or by a microwave pipe disposed outside the reactor and microwave units distributed on the microwave pipe. One end of the microwave pipe communicates with the bottom of the reactor via a connection pipe I, and the other end communicates with the top via a return pipe. A shield is disposed outside the microwave generation device to separate the microwave units from the outside, and a heat removal device is disposed outside the shield. An ultrasonic wave generation device is formed by 10 to 30 sets of ultrasonic pulse units disposed at intervals along the outer sidewall. Each set has 10 to 50 members distributed along the circumferential direction of the reactor. A stirring shaft is fixed below a stirring motor and extends into the reactor.Type: GrantFiled: April 11, 2013Date of Patent: May 23, 2017Assignee: EXPLOITER MOLYBDENUM CO., LTD.Inventors: Weigen Zhao, Longfei Zhao, Nian Li, Jiafu Fan