Patents by Inventor Licheng Li
Licheng 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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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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Publication number: 20240097264Abstract: The disclosure discloses an energy storage battery box including a battery apparatus, a box body, and a compression component. The battery apparatus includes a plurality of batteries stacked in sequence. The box body is internally provided with an accommodating cavity suitable for accommodating the battery apparatus. One side of the box body is provided with an opening in a stacking direction of the batteries, and the opening communicates with the accommodating cavity. The compression component is adapted to seal the opening. The compression component and an edge of the opening are detachably connected.Type: ApplicationFiled: December 22, 2022Publication date: March 21, 2024Applicant: CALB Co., Ltd.Inventors: Kang Xiao, Licheng Zheng, Wei Li, Tengteng Shi
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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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Publication number: 20230324447Abstract: A wire voltage measurement method includes: acquiring a first corresponding relationship of an electric field intensity of a to-be-measured wire, a voltage of the to-be-measured wire, and a perpendicular distance between an electric field sensor and the to-be-measured wire; measuring at least four initial electric field intensities in an electric field sensitive direction through the at least four electric field sensors, and acquiring distances among the four electric field sensors along the straight line; calculating a second corresponding relationship of the voltage of the to-be-measured wire and an external interference electric field intensity in the electric field sensitive direction according to the four initial electric field intensities, the distances among the four electric field sensors along the straight line, the first corresponding relationship, and a spatial position relationship of the at least four electric field sensors; calculating the voltage of the to-be-measured wire according to the secoType: ApplicationFiled: July 1, 2022Publication date: October 12, 2023Applicant: Digital Grid Research Institute, China S. Pwr GridInventors: Peng LI, Bing TIAN, Qiancheng LV, Zhenheng XU, Xu YIN, Renze CHEN, Shaoxiong NIE, Zejie TAN, Zhiming WANG, Licheng LI
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Patent number: 11774484Abstract: A wire voltage measurement method includes: acquiring a first corresponding relationship of an electric field intensity of a to-be-measured wire, a voltage of the to-be-measured wire, and a perpendicular distance between an electric field sensor and the to-be-measured wire; measuring at least four initial electric field intensities in an electric field sensitive direction through the at least four electric field sensors, and acquiring distances among the four electric field sensors along the straight line; calculating a second corresponding relationship of the voltage of the to-be-measured wire and an external interference electric field intensity in the electric field sensitive direction according to the four initial electric field intensities, the distances among the four electric field sensors along the straight line, the first corresponding relationship, and a spatial position relationship of the at least four electric field sensors; calculating the voltage of the to-be-measured wire according to the secoType: GrantFiled: July 1, 2022Date of Patent: October 3, 2023Assignee: Digital Grid Research Inst., China South Pwr GridInventors: Peng Li, Bing Tian, Qiancheng Lv, Zhenheng Xu, Xu Yin, Renze Chen, Shaoxiong Nie, Zejie Tan, Zhiming Wang, Licheng Li
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Publication number: 20230247388Abstract: A communication system, method, and device for a miniature intelligent sensor. The communication system includes a sensor, a power gateway, and a power Internet of things (IoT) server. The sensor is configured to obtain sensor data and send the sensor data to the power gateway according to a Bluetooth communication protocol. The power gateway is configured to receive the sensor data and perform protocol conversion on the sensor data to obtain protocol conversion data adapted to a message queuing telemetry transport (MQTT) protocol. The power gateway is configured to send the protocol conversion data to the power IoT server according to the MQTT protocol. The power IoT server is configured to receive the protocol conversion data and obtain server receiving data of the power IoT server according to the protocol conversion data.Type: ApplicationFiled: June 17, 2021Publication date: August 3, 2023Applicant: DIGITAL GRID RES INST, CHINA SOUTHERN POWER GRIDInventors: Peng LI, Xu YIN, Bing TIAN, Min GUO, Zhiming WANG, Zhong LIU, Hongdi SUN, Jiguang ZHAO, Licheng LI
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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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Publication number: 20220334005Abstract: A deep well grounding electrode and a deep well grounding electrode monitoring system. The deep well grounding electrode comprises a feeding rod, a feeding head, a steel casing, a temperature measurement optical cable, an exhaust pipe, and a drainage cable; the steel casing is located in the well body; the feeding head is located at the bottom of the steel casing; the feeding rod, the temperature measurement optical cable, the exhaust pipe, and the drainage cable are located in the steel casing; the temperature measurement optical cable extends from a bottom end of the feeding rod to a monitoring module; the exhaust pipe extends from the bottom end of the feeding rod to the ground; and one end of the drainage cable is welded on the feeding rod, the other end extends to the monitoring module, and the drainage cable is fixed to the feeding rod by bolts.Type: ApplicationFiled: July 24, 2020Publication date: October 20, 2022Applicants: ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID, CHINA SOUTHERN POWER GRIDInventors: Gang LIU, Lu QU, Yi ZHANG, Shangmao HU, Taishan HU, Minchuan LIAO, Lei JIA, Licheng LI, Hong RAO, Hansheng CAI, Ruifa FENG, Hao LIU, Qi MEI, Jian SHI, Ruihan QI
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Patent number: 10976211Abstract: A fully-automated handheld pressure calibrator, comprising a housing, and gas circuit and electrical circuit components installed in the housing. The gas circuit components comprise a pressure source capable of supplying a pressurized gas. The gas circuit and electrical circuit components are integrated and installed in the housing in a modular manner, and the shape of the housing is suitable to be held in a hand. The pressure calibrator of the present invention enables all kinds of functions including pressure generation, pressure control, pressure instrument connection, and recording, result calculation, and report output of a pressure calibration process, and is suitable for on-site an on-line calibration of a pressure instrument.Type: GrantFiled: July 14, 2017Date of Patent: April 13, 2021Assignee: BEIJING CONST INSTRUMENTS TECHNOLOGY INC.Inventors: Zhiyong Huang, Xin Liu, Fengshan Dong, Xilei Tian, Rui Li, Wei Ji, Licheng Li, Gang Wang, Hongjun Gao, Chunhui Wan
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Publication number: 20190219472Abstract: A fully-automated handheld pressure calibrator, comprising a housing, and gas circuit and electrical circuit components installed in the housing. The gas circuit components comprise a pressure source capable of supplying a pressurized gas. The gas circuit and electrical circuit components are integrated and installed in the housing in a modular manner, and the shape of the housing is suitable to be held in a hand. The pressure calibrator of the present invention enables all kinds of functions including pressure generation, pressure control, pressure instrument connection, and recording, result calculation, and report output of a pressure calibration process, and is suitable for on-site an on-line calibration of a pressure instrument.Type: ApplicationFiled: July 14, 2017Publication date: July 18, 2019Applicant: BEIJING CONST INSTRUMENTS TECHNOLOGY INC.Inventors: Zhiyong HUANG, Xin LIU, Fengshan DONG, Xilei TIAN, Rui LI, Wei JI, Licheng LI, Gang WANG, Hongjun GAO, Chunhui WAN
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Patent number: 9856149Abstract: It discloses a vanadium-titanium compound material with high thermal stability and high activity and a preparation method thereof. The vanadium-titanium compound material is mainly composed of vanadium oxide and titanium oxide, where the content of vanadium oxide is 0.5% to 30% by mass of the vanadium-titanium compound material, and the crystal form of titanium oxide in the vanadium-titanium compound material is one of anatase and TiO2(B) or a mixture thereof.Type: GrantFiled: September 29, 2012Date of Patent: January 2, 2018Assignees: NANJING TECH UNIVERSITY, CHANGSHU YUTYRONE ADVANCED WEAR MATERIALS TECHNOLOGY CO., LTD.Inventors: Zhuhong Yang, Licheng Li, Xiaohua Lu, Wenjun Yao, Tuo Ji, Zheng Li, Chang Liu
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Patent number: 9434621Abstract: A mesoporous composite titanium oxide, which is composed of a mesoporous titanium oxide, the outside surface and the wall of pores of the mesoporous titanium oxide are modified by inorganic matters; inorganic matter contains at least one element selected from carbon, silicon, sulphur, phosphorus and selenium in an amount of 0.01%-25%, on amount of the element mass, of the mass of said mesoporous composite titanium oxide material; at least one mean pore size of pore distribution of the mesoporous compound titanium oxide material is 3-15 nm, the specific surface area is 50-250 m2/g, and the pore volume is 0.05-0.4 cm3/g. As a catalyst carrier, the rate of conversion of the hydrodesulfurization reaction of the material reaches as high as 98 percent, and as a lithium ion battery cathode material, the specific capacity of the lithium ion battery cathode material reaches as high as 220 mAh/g.Type: GrantFiled: August 28, 2009Date of Patent: September 6, 2016Assignees: NANJING UNIVERSITY OF TECHNOLOGY, NANJING TAIWEI TECHNOLOGY CO., LTD.Inventors: Zhuhong Yang, Yudan Zhu, Xiaohua Lu, Changsong Wang, Licheng Li, Linghong Lv, Wei Zhuang, Chang Liu, Xin Feng
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Publication number: 20150246823Abstract: It discloses a vanadium-titanium compound material with high thermal stability and high activity and a preparation method thereof. The vanadium-titanium compound material is mainly composed of vanadium oxide and titanium oxide, where the content of vanadium oxide is 0.5% to 30% by mass of the vanadium-titanium compound material, and the crystal form of titanium oxide in the vanadium-titanium compound material is one of anatase and TiO2(B) or a mixture thereof.Type: ApplicationFiled: September 29, 2012Publication date: September 3, 2015Applicants: NANJING TECH UNIVERSITY (CN), CHANGSHU YUTYRONE ADVANCED WEAR MATERIALS TECHNOLOGY CO., LTD. (CN)Inventors: Zhuhong Yang, Licheng Li, Xiaohua Lu, Wenjun Yao, Tuo Ji, Zheng Li, Chang Liu
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Publication number: 20120184433Abstract: The invention discloses a mesoporous composite titanium oxide and a preparation method thereof, wherein the mesoporous composite titanium oxide material is composed of a mesoporous titanium oxide and an inorganic matter is composite on the outside surface and the wall of pores of the mesoporous titanium oxide; said inorganic matter contains at least one element selected from carbon, silicon, sulphur, phosphorus and selenium in an amount of 0.01%-25%, on amount of the element mass, of the mass of said mesoporous composite titanium oxide material; at least one most probable pore diameter of pore distribution of the mesoporous compound titanium oxide material is 3-15 nm, the specific surface area is 50-250 m2/g, and the pore volume is 0.05-0.4 m3/g.Type: ApplicationFiled: August 28, 2009Publication date: July 19, 2012Applicants: NANJING TAIWEI TECHNOLOGY CO., LTD., NANJING UNIVERSITY OF TECHNOLOGYInventors: Zhuhong Yang, Yudan Zhu, Xiaohua Lu, Changsong Wang, Licheng Li, Linghong Lv, Wei Zhuang, Chang Liu, Xin Feng
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Patent number: D843713Type: GrantFiled: December 15, 2016Date of Patent: March 26, 2019Assignee: HANGZHOU TAO DESIGN Co., Ltd.Inventors: Licheng Li, Jinbo Xiao
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Patent number: D968079Type: GrantFiled: September 10, 2020Date of Patent: November 1, 2022Assignee: HANGZHOU TAOMORE TECHNOLOGY CO. LTDInventor: Licheng Li