Patents by Inventor Gaohua Chen
Gaohua Chen 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: 11654945Abstract: A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.Type: GrantFiled: March 16, 2017Date of Patent: May 23, 2023Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua Chen, Jianghua Feng, Shu Cheng, Rongjun Ding, Chaoqun Xiang, Yijing Xu, Liang Han
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Publication number: 20230147692Abstract: A method and system device for performing multi-carrying of a linear motor for magnetic levitation transportation is provided. With the method for performing multi-carrying of a linear motor for magnetic levitation transportation, linear motor traction power information and other linear motor carried information are generated, and the other linear motor carried information is transmitted through a channel for carrying the linear motor traction power information that is constructed based on a linear motor structure.Type: ApplicationFiled: April 16, 2020Publication date: May 11, 2023Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Rongjun DING, Yijing XU, Yu SHI, Liang HAN, Yanhui WEN, Yonghui NAN, Anfeng ZHAO, Haojiong LV, Kai FANG, Huadong LIU, Hui SHEN, Shu CHENG, Jungui SU, Zhenbang ZHOU, Cheng LI
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Patent number: 11427085Abstract: A long stator power supply section and a long stator linear motor for a maglev train, comprising a plurality of stator core modules (1) and stator coils (2) equal in number to the stator core modules (1). Each stator of the plurality of stator coils (2) is correspondingly embedded into one stator core module of the stator core modules (1) respectively; joints are arranged at both ends of each stator coil (2); the stator coils (2) on every two adjacent stator core modules (1) are detachably connected by means of the joints; and the joints of the stator coils (2) on the stator core modules (1) at both ends are connected to a feeder cable.Type: GrantFiled: October 10, 2017Date of Patent: August 30, 2022Assignee: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua Chen, Jianghua Feng, Benyu Xin, Rongjun Ding, Kuisen Tian, Shuying Guo
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Patent number: 11252630Abstract: A method and a system for rail transit communication. The method includes: selecting a second target FSO transceiver from the FSO transceivers that are currently located within a signal coverage of a target FSO base station, in response to detecting that a first target free-space-optics (FSO) transceiver moves out of the signal coverage of the target FSO base station when data communication between the target FSO base station and the target user terminal is performed via the first target FSO transceiver, where the target FSO base station is one of the FSO base stations located on the rail; and maintaining the data communication between the target FSO base station and the target user terminal, by using the second target FSO transceiver. Handover among the base stations is reduced for user equipment, data communication rate is increased, and communication experience of passengers can be improved.Type: GrantFiled: May 17, 2017Date of Patent: February 15, 2022Assignees: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD., NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Jianghua Feng, Mina Taheri, Qiang Fan, Nirwan Ansari, Roberto Rojas-Cessa, Mengchu Zhou, Gaohua Chen, Dajun Wang, Jun Tang, Tairan Zhang
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Publication number: 20210129880Abstract: A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.Type: ApplicationFiled: March 16, 2017Publication date: May 6, 2021Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Shu CHENG, Rongjun DING, Chaoqun XIANG, Yijing XU, Liang HAN
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Publication number: 20200207215Abstract: A long stator power supply section and a long stator linear motor for a maglev train, comprising a plurality of stator core modules (1) and stator coils (2) equal in number to the stator core modules (1). Each stator of the plurality of stator coils (2) is correspondingly embedded into one stator core module of the stator core modules (1) respectively; joints are arranged at both ends of each stator coil (2); the stator coils (2) on every two adjacent stator core modules (1) are detachably connected by means of the joints; and the joints of the stator coils (2) on the stator core modules (1) at both ends are connected to a feeder cable.Type: ApplicationFiled: October 10, 2017Publication date: July 2, 2020Applicant: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD.Inventors: Gaohua CHEN, Jianghua FENG, Benyu XIN, Rongjun DING, Kuisen TIAN, Shuying GUO
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Publication number: 20190380084Abstract: A method and a system for rail transit communication. The method includes: selecting a second target FSO transceiver from the FSO transceivers that are currently located within a signal coverage of a target FSO base station, in response to detecting that a first target free-space-optics (FSO) transceiver moves out of the signal coverage of the target FSO base station when data communication between the target FSO base station and the target user terminal is performed via the first target FSO transceiver, where the target FSO base station is one of the FSO base stations located on the rail; and maintaining the data communication between the target FSO base station and the target user terminal, by using the second target FSO transceiver. Handover among the base stations is reduced for user equipment, data communication rate is increased, and communication experience of passengers can be improved.Type: ApplicationFiled: May 17, 2017Publication date: December 12, 2019Applicants: CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO., LTD., NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Jianghua FENG, Mina TAHERI, Qiang FAN, Nirwan ANSARI, Roberto ROJAS-CESSA, Mengchu ZHOU, Gaohua CHEN, Dajun WANG, Jun TANG, Tairan ZHANG
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Patent number: 8450957Abstract: A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle ?? of the reference voltage vector by ??=2?/N; obtaining a modulating angle ?m of the reference voltage vector by ?m=(Nth?1)×??, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle ?m and the passing angle ?? of the reference voltage vector and the modulating ratio m; comparing a variable quantity ?f the reference voltage vector angle ? and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the referenceType: GrantFiled: February 17, 2009Date of Patent: May 28, 2013Assignee: Zhuzhou CSR Times Electric Co., Ltd.Inventors: Rongjun Ding, Jianghong Li, Gaohua Chen, Wei Xu, Huaguo Chen
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Publication number: 20110110413Abstract: A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle ?? of the reference voltage vector by ??=2?/N; obtaining a modulating angle ?m of the reference voltage vector by ?m=(Nth?1)×??, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle ?m and the passing angle ?? of the reference voltage vector and the modulating ratio m; comparing a variable quantity ?f the reference voltage vector angle ? and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the referenceType: ApplicationFiled: February 17, 2009Publication date: May 12, 2011Applicant: ZHUZHOU CSR TIMES ELECTRIC CO., LTD.Inventors: Rongjun Ding, Jianghong Li, Gaohua Chen, Wei Xu, Huaguo Chen