Patents by Inventor Bofeng LUO
Bofeng LUO 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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Publication number: 20240118355Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.Type: ApplicationFiled: September 6, 2023Publication date: April 11, 2024Applicant: DIGITAL GRID RES. INST., CHINA SOUTHERN PWR. GRIDInventors: Peng LI, Qiancheng LV, Bing TIAN, Zejie TAN, Zhiming WANG, Jie WEI, Renze CHEN, Xiaopeng FAN, Zhong LIU, Zhenheng XU, Senjing YAO, Licheng LI, Yuehuan LIN, Shengrong LIU, Bofeng LUO, Jiaming ZHANG, Xu YIN
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Patent number: 11953568Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.Type: GrantFiled: September 6, 2023Date of Patent: April 9, 2024Assignee: DIGITAL GRID RES. INST., CHINA SOUTHERN PWR. GRIDInventors: Peng Li, Qiancheng Lv, Bing Tian, Zejie Tan, Zhiming Wang, Jie Wei, Renze Chen, Xiaopeng Fan, Zhong Liu, Zhenheng Xu, Senjing Yao, Licheng Li, Yuehuan Lin, Shengrong Liu, Bofeng Luo, Jiaming Zhang, Xu Yin
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Publication number: 20240110956Abstract: A current sensor includes: four first uniaxial TMR chips and at least two second uniaxial TMR chips, each first uniaxial TMR chip and each second uniaxial TMR chip being located on the same virtual ring, wherein magnetic sensitive directions of the four first uniaxial TMR chips are perpendicular to a radius of the virtual ring, magnetic sensitive directions of two adjacent first uniaxial TMR chips are perpendicular to each other, magnetic sensitive directions of the two second uniaxial TMR chips are parallel to the radius of the virtual ring and opposite to each other, and the two second uniaxial TMR chips respectively have the same positions as two first uniaxial TMR chips; each first uniaxial TMR chip and each second uniaxial TMR chip are configured to collect a magnetic induction intensity, the magnetic induction intensity is configured to calculate a target current value of a to-be-measured wire.Type: ApplicationFiled: June 16, 2021Publication date: April 4, 2024Applicant: Digital Grid Research Institute, China S. Pwr GridInventors: Peng LI, Qiancheng LV, Bing TIAN, Licheng LI, Bofeng LUO, Zhong LIU, Zhiming WANG, Hongdi SUN, Xu YIN, Jiaming ZHANG
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Patent number: 11944197Abstract: The disclosure relates to a table (100). The table (100) has a table top (102), a plurality of legs (104) connectable to the table top (102), and an air purifier (106) adapted to be placed below the table top (102). A bottom side of the table top (102) is provided with at least one groove (112) extending in a circumferential direction for preventing liquid from traveling from an outer edge of the table top (102) along the bottom side of the table top (102) and reaching an inner section of the air purifier (106). The disclosure also relates to a method for purifying air using a table (100).Type: GrantFiled: June 3, 2021Date of Patent: April 2, 2024Assignee: INTER IKEA SYSTEMS B.V.Inventors: Paul Larsson, David Wahl, Henrik Telander, Bofeng Peng, Derong Jian, Tao Wang, Zhongtao Luo, Zhisuo Chen, Dianqiu Zhang, Xiaoming Lian, Zhenqi Yan, Youxiong Zhang
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Patent number: 11927608Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.Type: GrantFiled: September 18, 2023Date of Patent: March 12, 2024Assignee: DIGITAL GRID RES. INST., CHINA SOUTHERN PWR. GRIDInventors: Peng Li, Qiancheng Lv, Bing Tian, Xiaopeng Fan, Zhong Liu, Zhiming Wang, Renze Chen, Jie Wei, Xu Yin, Zejie Tan, Zhenheng Xu, Senjing Yao, Licheng Li, Yuehuan Lin, Shengrong Liu, Bofeng Luo, Jiaming Zhang
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Patent number: 11906552Abstract: The present disclosure relates to a voltage measuring method, a computer device and a storage medium. The method includes: determining, by a voltage measuring device when the voltage measuring device is electrically coupled to a three-phase conductor through a voltage dividing capacitor in the voltage measuring device, a current measured voltage, the measured voltage being determined by measuring a voltage of the voltage dividing capacitor in the voltage measuring device; adjusting the coupling capacitances, and determining, by the voltage measuring device after the adjustment of the coupling capacitances, a current measured voltage; and determining, based on the measured voltage by the voltage measuring device before the adjustment of the coupling capacitances and the measured voltage by the voltage measuring device after the adjustment of the coupling capacitances, a voltage of a phase conductor of the three-phase conductor to be measured.Type: GrantFiled: July 31, 2023Date of Patent: February 20, 2024Assignee: DIGITAL GRID RES. INST, CHINA SOUTHERN POWER GRIDInventors: Peng Li, Bing Tian, Zhong Liu, Bofeng Luo, Zhiming Wang, Licheng Li, Xiaopeng Fan, Senjing Yao, Qiancheng Lv, Zhenheng Xu, Renze Chen, Yuehuan Lin, Xu Yin, Jiaming Zhang, Jie Wei, Zejie Tan
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Patent number: 11703529Abstract: A voltage measurement device includes a probe module movably arranged around an alternating-current transmission line, and a measurement unit. A metal electrode is arranged on a surface of the probe module facing toward the alternating-current transmission line, electrically coupled with the alternating-current transmission line to form a coupling capacitor, and then forms an electrical circuit with an inductor element, a resistor element, and a reference signal source in the measurement unit. A processor controls the reference signal source to input reference voltage signals at different frequencies to the electrical circuit, determines a resonant frequency of the electrical circuit according to currents of the electrical circuit under the reference voltage signals at different frequencies, and determines a voltage of the alternating-current transmission line according to a first current component amplitude and the resonant frequency of the electrical circuit.Type: GrantFiled: August 9, 2022Date of Patent: July 18, 2023Assignees: Digital Grid Research Institute, China So Po Grid, Electric Pwr Rrch Ins of Guangxi Pwr Grd Co., Ltd.Inventors: Peng Li, Bing Tian, Ke Zhou, Zhiming Wang, Bofeng Luo, Xu Yin, Jiaming Zhang, Zhong Liu, Xiaoming Wang, Hongdi Sun, Qiancheng Lv, Renze Chen, Licheng Li
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Publication number: 20230065005Abstract: A voltage measurement device includes a probe module movably arranged around an alternating-current transmission line, and a measurement unit. A metal electrode is arranged on a surface of the probe module facing toward the alternating-current transmission line, electrically coupled with the alternating-current transmission line to form a coupling capacitor, and then forms an electrical circuit with an inductor element, a resistor element, and a reference signal source in the measurement unit. A processor controls the reference signal source to input reference voltage signals at different frequencies to the electrical circuit, determines a resonant frequency of the electrical circuit according to currents of the electrical circuit under the reference voltage signals at different frequencies, and determines a voltage of the alternating-current transmission line according to a first current component amplitude and the resonant frequency of the electrical circuit.Type: ApplicationFiled: August 9, 2022Publication date: March 2, 2023Applicants: Digital Grid Research Institute, China So Po Grid, Electric Pwr Rrch Ins of Guangxi Pwr Grd Co., Ltd.Inventors: Peng LI, Bing TIAN, Ke ZHOU, Zhiming WANG, Bofeng LUO, Xu YIN, Jiaming ZHANG, Zhong LIU, Xiaoming WANG, Hongdi SUN, Qiancheng LV, Renze CHEN, Licheng LI
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Patent number: 11500341Abstract: Provided is a source-load cooperation access method for a power distribution region. The method includes: establishing a timing feature model of a distributed generator and a timing feature model of a load respectively, acquiring a timing feature of the distributed generator in an access power distribution region by using maximum likelihood estimation and acquiring a timing feature of a user which accesses the power distribution region by using classification and regression trees; and inputting the timing feature of the distributed generator and the timing feature of the user which access the power distribution region into a combination optimization model, and determining a source-load access feeder through optimization.Type: GrantFiled: December 17, 2019Date of Patent: November 15, 2022Assignees: ELECTRIC POWER SCIENCE & RESEARCH INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY, STATE GRID TIANJIN ELECTRIC POWER COMPANY, STATE GRID CORPORATION OF CHINA, TIANJIN UNIVERSITYInventors: Yan Qi, Xudong Wang, Yunfei Mu, Xuejun Shang, Bofeng Luo, Yi Ding, Xianxu Huo, Zhijun Zhang, Lei Wu
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Publication number: 20210208548Abstract: Provided is a source-load cooperation access method for a power distribution region. The method includes: establishing a timing feature model of a distributed generator and a timing feature model of a load respectively, acquiring a timing feature of the distributed generator in an access power distribution region by using maximum likelihood estimation and acquiring a timing feature of a user which accesses the power distribution region by using classification and regression trees; and inputting the timing feature of the distributed generator and the timing feature of the user which access the power distribution region into a combination optimization model, and determining a source-load access feeder through optimization.Type: ApplicationFiled: December 17, 2019Publication date: July 8, 2021Inventors: Yan QI, Xudong WANG, Yunfei MU, Xuejun SHANG, Bofeng LUO, Yi DING, Xianxu HUO, Zhijun ZHANG, Lei WU