Patents by Inventor Changchun Wang
Changchun Wang 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: 11963242Abstract: This application provides a communication method and apparatus. The method includes: After receiving a first packet from a first device, a first user plane network element determines a user plane LAN identifier corresponding to the first packet, where the user plane LAN identifier is an identifier that is in a user plane and that is of a LAN group to which the terminal belongs, and one user plane LAN identifier corresponds to one LAN group. That is, a function of the user plane LAN identifier is to isolate user plane packets of different LAN groups. Then, the first user plane network element sends the first packet to a second device based on the user plane LAN identifier and a destination address included in the first packet, so that the first packet sent by one terminal in the LAN group is sent to another terminal in the LAN group.Type: GrantFiled: March 12, 2021Date of Patent: April 16, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Changchun Xu, Zhongping Chen, Yuan Wang, Yan Wang
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Publication number: 20240121119Abstract: The present disclosure relates to the technical field of computers, in particular to a method and apparatus for classifying a blockchain address. The method includes: transaction vectors are generated for transaction records corresponding to each blockchain address in a blockchain address set; a corresponding address vector is generated based on the transaction vectors corresponding to a blockchain address to be classified; and the address vector of the blockchain address to be classified is input into a classifier, so as to determine a class of the blockchain address to be classified. By means of the method, equal-length vectors representing the blockchain addresses can be obtained for classification by the classifier, transaction behaviors and association relationships of participating entities in a blockchain are effectively expressed.Type: ApplicationFiled: February 10, 2022Publication date: April 11, 2024Inventors: Changchun MU, Gang DI, Sude QING, Yanhui WANG, Junwei ZENG, Hao WU
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Patent number: 11926063Abstract: The present invention provides a fractional order sliding mode synchronous control method for a teleoperation system based on an event trigger mechanism. The method comprises: establishing a dynamics model for the teleoperation system by considering external disturbance and parameter uncertainty, selecting a master robot and a slave robot, interactively establishing the teleoperation system through a communication network, determining system parameters of the dynamics model, designing a fractional order nonsingular rapid terminal sliding mode surface equation by utilizing a position tracking error and a fractional order calculus, setting a trigger event condition of information interaction between the master robot and the slave robot, designing a self-adaptive fractional order nonsingular rapid terminal sliding mode controller based on the sliding mode, designing a Lyapunov function to carry out stability analysis, proving the boundedness of a closed-loop state signal of the system.Type: GrantFiled: December 3, 2021Date of Patent: March 12, 2024Assignee: Yanshan UniversityInventors: Changchun Hua, Yilu Wang, Yana Yang, Weili Ding, Liuliu Zhang, Shuang Liu, Guanglei Zhao, Wenliang Pei
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Patent number: 11912316Abstract: A vehicle coupler, a coupler tongue and a coupler body. Upper traction platforms and lower traction platforms of the coupler tongue and the hook body are arranged in an offset manner in the horizontal direction, and the section R of a traction surface of the upper traction platform and the section S of a traction surface of the lower traction platform are obtained by sectioning the coupler tongue along any vertical surface across an axis of a pin hole; and the perpendicular distance between the point on the section R closest to a nock portion and the axis of the pin hole is k, and the perpendicular distance between the point on the section S closest to the neck portion and the axis of the pin hole is m, and as such, n=|k?m|, and 10 mm?n?125 mm.Type: GrantFiled: June 26, 2019Date of Patent: February 27, 2024Assignee: CRRC QIQIHAR ROLLING STOCK CO., LTD.Inventors: Qingmin Meng, Yingjun Cui, Yan Wang, Pengdi Jin, Changchun Wang, Shengguo Cong
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Patent number: 11560161Abstract: A railway vehicle, a coupler, and a coupler body thereof. The coupler body comprises an upper traction platform, a lower traction platform, a lock chamber, and a pin hole. A traction surface of an upper traction platform and/or a lower traction platform is divided into a contact area and a yielding area along the direction approaching the lock chamber, an extension face of the end of the contact area close to the lock chamber is an M2 face, and the yielding area is positioned at the side of the M2 face close to the pin hole. The yielding area is positioned on the side of the contact area next to the lock chamber and there is a gap and no contact between the yielding area and a traction platform of a coupler knuckle.Type: GrantFiled: June 26, 2019Date of Patent: January 24, 2023Assignee: CRRC QIQIHAR ROLLING STOCK CO., LTD.Inventors: Yingjun Cui, Yan Jiang, Pengdi Jin, Yan Wang, Changchun Wang, Qingmin Meng
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Publication number: 20210001899Abstract: A vehicle coupler, a coupler tongue and a coupler body. Upper traction platforms and lower traction platforms of the coupler tongue and the hook body are arranged in an offset manner in the horizontal direction, and the section R of a traction surface of the upper traction platform and the section S of a traction surface of the lower traction platform are obtained by sectioning the coupler tongue along any vertical surface across an axis of a pin hole; and the perpendicular distance between the point on the section R closest to a nock portion and the axis of the pin hole is k, and the perpendicular distance between the point on the section S closest to the neck portion and the axis of the pin hole is m, and as such, n=|k?m|, and 10 mm?n?125 mm.Type: ApplicationFiled: June 26, 2019Publication date: January 7, 2021Applicant: CRRC QIQIHAR ROLLING STOCK CO., LTD.Inventors: Qingmin MENG, Yingjun CUI, Yan WANG, Pengdi JIN, Changchun WANG, Shengguo CONG
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Publication number: 20200406940Abstract: A railway vehicle, a coupler, and a coupler body thereof. The coupler body comprises an upper traction platform, a lower traction platform, a lock chamber, and a pin hole. A traction surface of an upper traction platform and/or a lower traction platform is divided into a contact area and a yielding area along the direction approaching the lock chamber, an extension face of the end of the contact area close to the lock chamber is an M2 face, and the yielding area is positioned at the side of the M2 face close to the pin hole. The yielding area is positioned on the side of the contact area next to the lock chamber and there is a gap and no contact between the yielding area and a traction platform of a coupler knuckle.Type: ApplicationFiled: June 26, 2019Publication date: December 31, 2020Applicant: CRRC QIQIHAR ROLLING STOCK CO., LTD.Inventors: Yingjun CUI, Yan JIANG, Pengdi JIN, Yan WANG, Changchun WANG, Qingmin MENG
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Patent number: 9707981Abstract: A coupler buffer is provided that includes a coupler yoke for connection to a coupler, a front stop body for mounting to a vehicle body, a first elastic element, wherein a rear end thereof abuts against the coupler yoke and a front end thereof abuts against the front stop body, a casing arranged at a rear end of the coupler yoke, wherein a rear end of the casing is configured to be connected to the vehicle body, and the casing is connected with the coupler yoke via a connecting shaft, and the coupler yoke is movable along an axial direction of the connecting shaft, and a second elastic element arranged between the casing and the coupler yoke, wherein even when a vehicle body suffers a traction force or a compression force, the coupler buffer may function well.Type: GrantFiled: October 20, 2014Date of Patent: July 18, 2017Assignees: CRRC Qiqihar Rolling Stock Co., Ltd. Dalian Research & Development Center, CRRC Qiqihar Rolling Stock Co., Ltd.Inventors: Xiaolong Wang, Yuebin Yu, Haibin Hu, Long Chen, Changchun Wang, Qingmin Meng
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Patent number: 9241816Abstract: A stent for a bifurcated vessel includes a stent body (1) with two open ends (5, 6). The stent body (1) includes multiple sets of annular units (2) having multiple undulating rods (4) and connecting rods (3) positioned between adjacent annular units (2) and used to connect the adjacent annular units (2). At least one open end (6) of the stent body (1) has a slope structure.Type: GrantFiled: August 4, 2014Date of Patent: January 26, 2016Assignee: Shanghai MicroPort Medical (Group) Co., Ltd.Inventors: Dadong Zhang, Yan Li, Changchun Wang, Zhirong Tang, Qiyi Luo
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Publication number: 20150307115Abstract: A coupler buffer is provided that includes a coupler yoke for connection to a coupler, a front stop body for mounting to a vehicle body, a first elastic element, wherein a rear end thereof abuts against the coupler yoke and a front end thereof abuts against the front stop body, a casing arranged at a rear end of the coupler yoke, wherein a rear end of the casing is configured to be connected to the vehicle body, and the casing is connected with the coupler yoke via a connecting shaft, and the coupler yoke is movable along an axial direction of the connecting shaft, and a second elastic element arranged between the casing and the coupler yoke, wherein even when a vehicle body suffers a traction force or a compression force, the coupler buffer may function well.Type: ApplicationFiled: October 20, 2014Publication date: October 29, 2015Inventors: Xiaolong WANG, Yuebin YU, Haibin HU, Long CHEN, Changchun WANG, Qingmin MENG
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Patent number: 9089446Abstract: The present invention discloses a coronary artery vascular stent with drug carrying slots (2), comprising a plurality of main supporting unit rings (1,8) and connecting rods (4,6). Said main supporting unit rings comprise a plurality of unit waves. There are drug carrying slots (2) at the outer surface of the rods of said unit waves, characterized in that the total slot length of the drug carrying slots (2) is 60%-75% of the total wave rod length of the main supporting unit rings (1,8).Type: GrantFiled: November 2, 2009Date of Patent: July 28, 2015Assignee: SHANGHAI MICROPORT MEDICAL (GROUP) CO., LTD.Inventors: Yan Li, Changchun Wang, Jianjun Li, Zhiyong Xie, Zhirong Tang, Qiyi Luo
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Publication number: 20140343666Abstract: A stent for a bifurcated vessel includes a stent body (1) with two open ends (5, 6). The stent body (1) includes multiple sets of annular units (2) having multiple undulating rods (4) and connecting rods (3) positioned between adjacent annular units (2) and used to connect the adjacent annular units (2). At least one open end (6) of the stent body (1) has a slope structure.Type: ApplicationFiled: August 4, 2014Publication date: November 20, 2014Inventors: Dadong ZHANG, Yan LI, Changchun WANG, Zhirong TANG, Qiyi LUO
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Publication number: 20130304191Abstract: A stent for a bifurcated vessel comprises a stent body having two open ends, wherein at least one of the open ends of the stent body is a wedge structure, a second opaque marker is provided on the two ends of the slant long axis of the wedge structure, the stent body is provided with two first opaque markers, and the connecting line between the two first opaque markers is parallel to the slant of the wedge structure. When the two first opaque markers overlap with each other, the slant of the wedge structure of the stent for a bifurcated vessel is precisely positioned during implantation so that the slant of the wedge structure of the stent for a bifurcated vessel fits the slant at the blood vessel bifurcation site.Type: ApplicationFiled: August 16, 2011Publication date: November 14, 2013Inventors: Xu Cai, Dadong Zhang, Changchun Wang, Zhirong Tang, Qiyi Luo, Zhaohua Chang
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Publication number: 20130041457Abstract: A stent for a bifurcated vessel includes a stent body with two open ends. The stent body includes multiple sets of annular units having multiple undulating rods and connecting rods positioned between adjacent annular units and used to connect the adjacent annular units. At least one open end of the stent body has a slope structure.Type: ApplicationFiled: April 19, 2011Publication date: February 14, 2013Applicant: Shanghai MicroPort Medical (Group) Co., Ltd.Inventors: Dadong Zhang, Yan Li, Changchun Wang, Zhirong Tang, Qiyi Luo
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Publication number: 20110238157Abstract: The present invention discloses a coronary artery vascular stent with drug carrying slots (2), comprising a plurality of main supporting unit rings (1,8) and connecting rods (4,6). Said main supporting unit rings comprise a plurality of unit waves. There are drug carrying slots (2) at the outer surface of the rods of said unit waves, characterized in that the total slot length of the drug carrying slots (2) is 60%-75% of the total wave rod length of the main supporting unit rings (1,8).Type: ApplicationFiled: November 2, 2009Publication date: September 29, 2011Applicant: MICROPORT MEDICAL (SHANGHAI) CO., LTD.Inventors: Yan Li, Changchun Wang, Jianjun Li, Zhiyong Xie, Zhirong Tang, Qiyi Luo