Patents by Inventor Yifei Wu
Yifei Wu 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: 10818003Abstract: A high-precision intelligent detection method for bridge diseases based on spatial position. The method comprising: collecting images based on the high-definition image acquisition system; importing the image data and position information data into image processing software to create a mosaic image of each part of the bridge; importing the prepared spliced image map into the bridge disease intelligent identification system; obtaining the corresponding position and bridge of the bridge disease in the three-dimensional model of the bridge; identifying the stitched image map to obtain the size of the disease after identifying the bridge disease image and locating the bridge disease. The high-precision intelligent detection method for bridge diseases based on spatial position realizes automatic collection and intelligent analysis of bridge inspection data, reduces the workload of the inspection technicians and improves the detection efficiency.Type: GrantFiled: October 10, 2018Date of Patent: October 27, 2020Assignee: Chongqing Construction Engineering Group Corporation LimitedInventors: Bo Chen, Yifei Wu, Guoqiang Liu, Xiaoni Zeng, Xiaojun Deng, Zongyong Chen, Lin Qiu
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Publication number: 20200098197Abstract: An control system for unmanned highway entrance is provided. The control system includes a server system and a toll collection system. The server system includes an unmanned entrance management system, a data center database, a speech synthesis component, and a speaker component. The unmanned entrance management system electrically is connected with the data center database, the speech synthesis component and the speaker component respectively. The toll collection system includes a data synchronization system, a toll collection database, a vehicle data collection system, a core data processing system, a watchdog system, a variable-message sign system, a card dispensing system, and an unmanned entrance toll collection system.Type: ApplicationFiled: October 10, 2018Publication date: March 26, 2020Applicant: Chongqing Construction Engineering Group Corporation LimitedInventors: Yifei Wu, Bo Chen, Xiaojun Deng, Zongyong Chen, Peng Lv, Nan Jiang, Lei Luo
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Publication number: 20200098103Abstract: A high-precision intelligent detection method for bridge diseases based on spatial position. The method comprising: collecting images based on the high-definition image acquisition system; importing the image data and position information data into image processing software to create a mosaic image of each part of the bridge; importing the prepared spliced image map into the bridge disease intelligent identification system; obtaining the corresponding position and bridge of the bridge disease in the three-dimensional model of the bridge; identifying the stitched image map to obtain the size of the disease after identifying the bridge disease image and locating the bridge disease. The high-precision intelligent detection method for bridge diseases based on spatial position realizes automatic collection and intelligent analysis of bridge inspection data, reduces the workload of the inspection technicians and improves the detection efficiency.Type: ApplicationFiled: October 10, 2018Publication date: March 26, 2020Applicant: Chongqing Construction Engineering Group Corporation LimitedInventors: Bo Chen, Yifei Wu, Guoqiang Liu, Xiaoni Zeng, Xiaojun Deng, Zongyong Chen, Lin Qiu
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Publication number: 20200000147Abstract: An electronic cigarette includes an atomizer with a first storage chamber formed in an end thereof, a first elastic element received in the first storage chamber, a first push pin slidably received in the first storage chamber. The first push pin is capable of sliding along an axial direction of the first storage chamber; an end of the first push pin abuts against the first elastic element. The electronic cigarette further comprises a power source assembly with a second storage chamber formed in an end thereof that is closer to the atomizer, a second elastic element received in the second storage chamber, a second push pin slidably received in the second storage chamber; the second push pin is capable of sliding along an axial direction of the second storage chamber; an end of the second push pin abuts against the second elastic element.Type: ApplicationFiled: June 28, 2019Publication date: January 2, 2020Applicant: Shenzhen First Union Technology Co., Ltd.Inventors: Yifei WU, Yonglu Guo, Zhongli Xu, Yonghai Li
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Patent number: 10381819Abstract: The present invention provides a DC circuit breaker combining magnetic induction transfer and resistance current limiting, the circuit breaker comprising: a main current circuit, a current-limiting branch, a breaking branch, and an energy dissipation branch; the current-limiting branch and the breaking circuit each comprises a magnetic induction transfer module; an inductor in the magnetic induction transfer module of the current-limiting branch and a branch inductor in the current-limiting branch are coupled to form a mutual inductor; an inductor in the magnetic induction transfer module of the breaking branch and a second inductor in the transfer current loop are coupled to form a mutual inductor. The present invention can limit the current rising speed and amplitude and completely turned off the short-circuit current, thereby reducing the size and manufacturing cost of the circuit breaker.Type: GrantFiled: April 21, 2017Date of Patent: August 13, 2019Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Yifei Wu, Mingzhe Rong, Fei Yang, Yi Wu, Chunping Niu
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Patent number: 10373774Abstract: The present disclosure provides a hybrid circuit breaker having a bridge induction transfer structure, characterized in that the circuit breaker comprises a main current circuit, an over-voltage limiting circuit, and a transfer current circuit; and the main current circuit, the over-voltage limiting circuit, and the transfer current circuit are connected in parallel. The induction transfer circuit in the transfer current circuit comprises an induction transfer inductor, an induction transfer capacitor, and an induction transfer branch power semiconductor device which are connected in series; the transfer current circuit further comprises a bridge circuit comprised of a main loop capacitor; the main loop inductor and the induction transfer inductor are coupled to form a transformer. The present invention can implement fast breaking of the current, and effectively reduce the volume and manufacturing cost of the circuit breaker. With the induction transfer circuit, fast current transfer is implemented.Type: GrantFiled: April 21, 2017Date of Patent: August 6, 2019Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Fei Yang, Yi Wu, Mingzhe Rong, Yifei Wu, Chunping Niu
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Patent number: 10374417Abstract: The present disclosure provides an arc-free DC circuit breaker that combines magnetic induction transfer and resistive current limiting. The circuit breaker comprises a main current circuit and a transfer current circuit. The transfer current circuit has a bridge structure; with a group of unidirectional components having a breaking function, bidirectional current breaking is implemented, such that compared with the prior art, usage of the turn-off devices may be reduced to half. By controlling action sequences of the trigger gap, high-speed switch, and power semiconductor, fast switching arc-free opening of the main current circuit is implemented; meanwhile, the breaking capability of the circuit breaker is significantly improved. By virtue of the current limiting module circuit inside the transfer current circuit, the present disclosure quickly limits short-circuit fault current, and then reduces the number of parallel groups of full-controlled devices of the breaking module circuit.Type: GrantFiled: April 21, 2017Date of Patent: August 6, 2019Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Yi Wu, Mingzhe Rong, Yifei Wu, Fei Yang, Chunping Niu
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Publication number: 20190169664Abstract: Host cells are metabolically engineered to consume glucose and glycerol simultaneously, and to divert glucose from catabolic to anabolic pathways without adversely affecting glucose uptake.Type: ApplicationFiled: May 5, 2017Publication date: June 6, 2019Applicant: University of Georgia Research Foundation, Inc.Inventors: Yajun YAN, Yifei WU, Xinxiao SUN, Yuheng LIN
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Patent number: 10297402Abstract: The present invention discloses a magnetic pulse inducted transfer-type DC circuit breaker. The DC circuit breaker comprises a main current circuit and a transfer current circuit, the main current circuit comprising a combination of a fast mechanical switch or a mechanical switch with a power electronic device; the transfer current circuit comprises an arrester and a mutual inductor. The voltage generated through a mutual inductor may directly transfer current to the arrestor, thereby eliminating a process of transfer of the current to the capacitor or a power electronic device; it has a high current limiting or breaking speed, with a stability far superior to traditional technologies. The isolation between the capacitance charging unit and the DC system significantly reduces the voltage level and size of the charging unit, and enhances action reliability.Type: GrantFiled: April 21, 2017Date of Patent: May 21, 2019Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Mingzhe Rong, Yi Wu, Yifei Wu, Fei Yang, Chunping Niu
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Publication number: 20180138687Abstract: The present disclosure provides a hybrid circuit breaker having a bridge induction transfer structure, characterized in that the circuit breaker comprises a main current circuit, an over-voltage limiting circuit, and a transfer current circuit; and the main current circuit, the over-voltage limiting circuit, and the transfer current circuit are connected in parallel. The induction transfer circuit in the transfer current circuit comprises an induction transfer inductor, an induction transfer capacitor, and an induction transfer branch power semiconductor device which are connected in series; the transfer current circuit further comprises a bridge circuit comprised of a main loop capacitor; the main loop inductor and the induction transfer inductor are coupled to form a transformer. The present invention can implement fast breaking of the current, and effectively reduce the volume and manufacturing cost of the circuit breaker. With the induction transfer circuit, fast current transfer is implemented.Type: ApplicationFiled: April 21, 2017Publication date: May 17, 2018Applicant: XI'AN JIAOTONG UNIVERSITYInventors: Fei YANG, Yi WU, Mingzhe RONG, Yifei WU, Chunping NIU
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Publication number: 20180138689Abstract: The present invention provides a DC circuit breaker combining magnetic induction transfer and resistance current limiting, the circuit breaker comprising: a main current circuit, a current-limiting branch, a breaking branch, and an energy dissipation branch; the current-limiting branch and the breaking circuit each comprises a magnetic induction transfer module; an inductor in the magnetic induction transfer module of the current-limiting branch and a branch inductor in the current-limiting branch are coupled to form a mutual inductor; an inductor in the magnetic induction transfer module of the breaking branch and a second inductor in the transfer current loop are coupled to form a mutual inductor. The present invention can limit the current rising speed and amplitude and completely turned off the short-circuit current, thereby reducing the size and manufacturing cost of the circuit breaker.Type: ApplicationFiled: April 21, 2017Publication date: May 17, 2018Applicant: XI'AN JIAOTONG UNIVERSITYInventors: Yifei WU, Mingzhe RONG, Fei YANG, Yi WU, Chunping NIU
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Publication number: 20180138695Abstract: The present disclosure provides an arc-free DC circuit breaker that combines magnetic induction transfer and resistive current limiting. The circuit breaker comprises a main current circuit and a transfer current circuit. The transfer current circuit has a bridge structure; with a group of unidirectional components having a breaking function, bidirectional current breaking is implemented, such that compared with the prior art, usage of the turn-off devices may be reduced to half. By controlling action sequences of the trigger gap, high-speed switch, and power semiconductor, fast switching arc-free opening of the main current circuit is implemented; meanwhile, the breaking capability of the circuit breaker is significantly improved. By virtue of the current limiting module circuit inside the transfer current circuit, the present disclosure quickly limits short-circuit fault current, and then reduces the number of parallel groups of full-controlled devices of the breaking module circuit.Type: ApplicationFiled: April 21, 2017Publication date: May 17, 2018Applicant: XI'AN JIAOTONG UNIVERSITYInventors: Yi WU, Mingzhe RONG, Yifei WU, Fei YANG, Chunping NIU
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Publication number: 20180137993Abstract: The present invention discloses a magnetic pulse inducted transfer-type DC circuit breaker. The DC circuit breaker comprises a main current circuit and a transfer current circuit, the main current circuit comprising a combination of a fast mechanical switch or a mechanical switch with a power electronic device; the transfer current circuit comprises an arrester and a mutual inductor. The voltage generated through a mutual inductor may directly transfer current to the arrestor, thereby eliminating a process of transfer of the current to the capacitor or a power electronic device; it has a high current limiting or breaking speed, with a stability far superior to traditional technologies. The isolation between the capacitance charging unit and the DC system significantly reduces the voltage level and size of the charging unit, and enhances action reliability.Type: ApplicationFiled: April 21, 2017Publication date: May 17, 2018Applicant: XI'AN JIAOTONG UNIVERSITYInventors: Mingzhe RONG, Yi WU, Yifei WU, Fei YANG, Chunping NIU
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Patent number: 9957671Abstract: An anti-rutting pavement structure is arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer.Type: GrantFiled: January 19, 2017Date of Patent: May 1, 2018Assignees: RESEACH INSTITUTE OF HIGHWAY MINISTRY OF TRANSPORT, CHONGQING CONSTRUCTION ENGINEERING GROUP CORPORATION LIMITEDInventors: Ke Zhong, Yifei Wu, Sang Luo, Bo Chen, Guoqiang Liu, Xiaochen Ma, Jing Ding, Chengyong Hu, Guanghua Yue, Ronghua Chang
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Publication number: 20180044862Abstract: An anti-rutting pavement structure, which is characterized in that it comprises, arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer. Compared with prior art, the present invention has improved great contributions of the middle and lower layer of the semi-rigid base layer pavement for rutting under high temperatures and heavy loads, while the pavement having a good crack-resistance, improvement for coordination of the overall deformation of the surface layer and the base layer, and a short construction conservation period, short time before traffic opening, excellent economic performance.Type: ApplicationFiled: January 19, 2017Publication date: February 15, 2018Inventors: Ke ZHONG, Yifei WU, Sang LUO, Bo CHEN, Guoqiang LIU, Xiaochen MA, Jing DING, Chengyong HU, Guanghua YUE, Ronghua CHANG
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Patent number: 9692225Abstract: A hybrid DC breaker, comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.Type: GrantFiled: January 17, 2014Date of Patent: June 27, 2017Assignee: XI' AN JIAOTONG UNIVERSITYInventors: Yi Wu, Mingzhe Rong, Fei Yang, Yifei Wu, Hao Sun, Chunping Niu
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Patent number: 9640983Abstract: A bidirectional hybrid breaker comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.Type: GrantFiled: January 17, 2014Date of Patent: May 2, 2017Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Fei Yang, Mingzhe Rong, Yi Wu, Yifei Wu, Hao Sun, Chunping Niu
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Patent number: 9640973Abstract: A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.Type: GrantFiled: January 17, 2014Date of Patent: May 2, 2017Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Mingzhe Rong, Yi Wu, Chunping Niu, Yifei Wu, Hao Sun, Fei Yang
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Publication number: 20140376140Abstract: A hybrid DC breaker, comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.Type: ApplicationFiled: January 17, 2014Publication date: December 25, 2014Applicant: Xi'an Jiaotong UniversityInventors: Yi WU, Mingzhe RONG, Fei YANG, Yifei WU, Hao SUN, Chunping NIU
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Publication number: 20140217833Abstract: A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.Type: ApplicationFiled: January 17, 2014Publication date: August 7, 2014Applicant: Xi'an Jiaotong UniversityInventors: Mingzhe RONG, Yi WU, Chunping NIU, Yifei WU, Hao SUN, Fei YANG