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公开(公告)号：US20230333387A1
公开(公告)日：2023-10-19
申请号：US18123503
申请日：2023-03-20
Applicant: Arizona Board of Regents on behalf of the University of Arizona , BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Dewen Cheng , Yongtian Wang , Hong Hua
CPC classification number: G02B27/0172 , G02B5/04 , G02B2027/011 , G02B2027/0123 , G02B2027/0147
Abstract: A tiled head-mounted display device, comprising: an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical. The tiled head-mounted display device according to the present invention is compact and light, provides wide field of view and high resolution, especially for the optical tiling head-mounted display device, the exit pupil planes of each display channels are coincident, thus avoiding pupil aberration and keeping exit pupil diameter and eye clearance same as the single ocular. There is no resolution variance throughout the entire field of view, thus preventing extra trapezoid distortion. The tiled head-mounted display device according to the present invention can be readily applicable to augmented environments applications by simply adding an auxiliary free-form lens behind the free-form prism.
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72.发明公开公开(公告)号：US20230330730A1
公开(公告)日：2023-10-19
申请号：US18139377
申请日：2023-04-26
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Pei YAN , Jie SUN , Lei FAN , Xibin WANG , Li JIAO , Tianyang QIU , Wenxiang ZHAO , Tianfeng ZHOU , Zhibing LIU , Lijing XIE , Bin ZHAO , Zhiqiang LIANG , Longlong TENG , Wenhua SHEN
IPC: B21B45/02
CPC classification number: B21B45/0248 , B21B45/0209
Abstract: An internal-cooling rolling tool capable of realizing variable-angle low-temperature lubrication is provided. The internal-cooling rolling tool includes a tool handle, a rotatable tool head and a medium conveying tube. The rotatable tool head includes a base, a rolling head and a ball. The bottom end of the base is mounted on the tool handle, and the top of the base is provided with a medium input port connected with the medium conveying tube. The rolling head is detachably mounted on the front end surface of the base, and the front end surface of base is provided with a plurality of spray holes in the circumferential direction of the rolling head. The medium conveying tube communicates with the spray holes through a medium flow channel. The ball is mounted on one end of the rolling head facing away from the base.
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73.发明授权公开(公告)号：US11791507B2
公开(公告)日：2023-10-17
申请号：US17915140
申请日：2021-09-01
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Rui Xiong , Wanzhou Sun , Ruixin Yang , Xinggang Li
IPC: H01M10/633 , H01M10/615 , H01M10/6571 , H01M10/0525 , H01M10/42
CPC classification number: H01M10/633 , H01M10/0525 , H01M10/425 , H01M10/615 , H01M10/6571 , H01M2010/4271
Abstract: A lithium-ion battery system and a control method for combined internal and external heating are provided. A battery is heated in a low-temperature environment through combined internal and external heating. The energy released during self-heating of the battery is fully used, and rapid heating of the battery in the low-temperature environment is implemented. A current adjustment module in a heating module is controlled to adjust a switch on-off frequency and a current on-off time during the heating, and loops with different heating resistances in a multi-loop heating film are selected through a resistance adjustment switch. In this way, target heating requirements of the battery are met, such as a high heating rate in a low-temperature environment, low energy consumption during the heating, and a small impact on battery life without jeopardizing safety during the heating.
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74.发明公开公开(公告)号：US20230249382A1
公开(公告)日：2023-08-10
申请号：US17816465
申请日：2022-08-01
Applicant: Beijing Institute of Technology
Inventor： Baosheng XU , Chenqi WANG , Lijie QU , Yanfei CHEN , Daining FANG , Yazheng YANG
CPC classification number: B29C39/123 , C09K5/14 , C08L61/06 , C08K3/04 , F16L59/029 , B29C39/42 , C08K2201/001 , B29K2061/04
Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.
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公开(公告)号：US20230229172A1
公开(公告)日：2023-07-20
申请号：US18097833
申请日：2023-01-17
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
IPC: G05D1/02 , G05B19/4155
CPC classification number: G05D1/0297 , G05B19/4155 , G05B2219/50391 , G05B2219/40078 , G05D2201/0216
Abstract: A multi-robot collaboration method in a flexible hardware production workshop is provided, by which allocation of workpiece machining tasks and transfer of workpieces in different workstations can be achieved and meanwhile relatively high calculation cost is avoided. According to the method, a distributed collaboration method is fully used, and in allusion to the current technical condition, the allocation of the workpiece machining tasks and the transfer of the workpieces in different workstations can be achieved and meanwhile the relatively high calculation cost is avoided. A multi-AGV path conflict eliminating method is used for avoiding possible collision of AGVs during movement. A centralized intervention and adjustment method is used for discovering and predicting system conflicts and failure problems and making timely dispatching and adjustment so as to improve the automation level and the flexibility level of a hardware workshop.
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Patent Agency Ranking
76.发明公开公开(公告)号：US20230170548A1
公开(公告)日：2023-06-01
申请号：US17915140
申请日：2021-09-01
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Rui XIONG , Wanzhou SUN , Ruixin YANG , Xinggang LI
IPC: H01M10/633 , H01M10/615 , H01M10/0525 , H01M10/6571 , H01M10/42
CPC classification number: H01M10/633 , H01M10/425 , H01M10/0525 , H01M10/615 , H01M10/6571 , H01M2010/4271
Abstract: A lithium-ion battery system and a control method for combined internal and external heating are provided. A battery is heated in a low-temperature environment through combined internal and external heating. The energy released during self-heating of the battery is fully used, and rapid heating of the battery in the low-temperature environment is implemented. A current adjustment module in a heating module is controlled to adjust a switch on-off frequency and a current on-off time during the heating, and loops with different heating resistances in a multi-loop heating film are selected through a resistance adjustment switch. In this way, target heating requirements of the battery are met, such as a high heating rate in a low-temperature environment, low energy consumption during the heating, and a small impact on battery life without jeopardizing safety during the heating.
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77.发明公开公开(公告)号：US20230168304A1
公开(公告)日：2023-06-01
申请号：US17916041
申请日：2021-09-01
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Rui XIONG , Jinpeng TIAN , Yanzhou DUAN
IPC: G01R31/367 , G01R31/378 , G01R31/392
CPC classification number: G01R31/367 , G01R31/378 , G01R31/392
Abstract: An artificial intelligence (AI)-based charging curve reconstruction and state estimation method for a lithium-ion battery is provided to estimate various states of a battery. In the method, a complete charging curve is reconstructed through deep learning with charging data segments as input. Then, a plurality of states of the battery can be extracted from the complete charging curve, including a maximum capacity, maximum energy, a state of charge (SOC), a state of energy (SOE), a state of power (SOP), and a capacity increment curve. The battery charging curve reconstruction and state estimation method is adaptively updated with a change in a working state of the battery.
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公开(公告)号：US20230158669A1
公开(公告)日：2023-05-25
申请号：US17908238
申请日：2020-05-09
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Zhangguo YU , Qiang HUANG , Yaliang LIU , Yuyu ZUO , Xuechao CHEN , Gao HUANG , Han YU
IPC: B25J9/16 , B25J13/08 , G05B19/4155
CPC classification number: B25J9/1633 , B25J13/085 , G05B19/4155 , G05B2219/39188
Abstract: A robot joint torque control system and a load compensation method therefor are provided, which relate to the technical field of robot joint motion control. A mathematical model of the robot joint torque control system is established first. Equivalent transformation is performed on a system functional block diagram thereof, and then it can be seen that load parameters have a great influence on joint torque output. A load compensation controller is designed to effectively eliminate the influence of the load parameters on an output torque of the joint. The system is equivalent to an inertial element on the basis of the compensation, and then a PD controller parameter is adjusted to increase an open-loop gain of the system, so as to increase a system bandwidth and increase a response speed of the joint torque control system, thereby improving performance of the joint torque control system.
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79.发明申请公开(公告)号：US20230099953A1
公开(公告)日：2023-03-30
申请号：US17947404
申请日：2022-09-19
Applicant: Harbin Marine Boiler and Turbine Research Institute , BEIJING INSTITUTE OF TECHNOLOGY , University of Shanghai for Science and Technology
Inventor： Shenggang LUAN , Hongzhi JI , Yanjiong YUE , Xunmin YIN , Dongdong ZHANG , Lihui ZHAO , Shouwen YAO , Yingchun BAI
Abstract: Disclosed is a robust topology optimization design method of a damping composite stiffened cylindrical shell box structure, comprising: constructing working load data, and obtaining circumferential target modal frequencies based on the working load data and the stiffened cylindrical shell box; laying constrained layer damping materials on the stiffened cylindrical shell box to construct a damping composite stiffened cylindrical shell box; constructing interval parameters based on the damping composite stiffened cylindrical shell box, and obtaining modal loss factor based on the interval parameters; constructing an objective function based on the modal loss factors, constructing design variables and constraint conditions based on the damping composite stiffened cylindrical shell box, integrating the objective function, design variables and constraint conditions to form an interval robust topology optimization model; updating the design variables based on the interval robust topology optimization model, and obtaining an optimized topology configuration of the damping composite stiffened cylindrical shell box.
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80.发明申请公开(公告)号：US20230087356A1
公开(公告)日：2023-03-23
申请号：US17482183
申请日：2021-09-22
Applicant: Beijing Institute of Technology
Inventor： Qiang HUANG , Xuxiao FAN , Richeng HUANG , Gao HUANG , Jingping LIAO , Zhangguo YU , Xingzhong LIU , Yuyu ZUO
Abstract: The present disclosure provides a reducer gear for robot, and a method for generating the gear and a reducer therewith. The reducer gear comprises: an outer contour layer and a reticulated porous base layer cladded by the outer contour layer; the outer contour layer comprises a mounting surface layer, a tooth surface layer, and a connecting surface layer connected between the mounting surface layer and the tooth surface layer and forming a complete gear outer contour together with the mounting surface layer and the tooth surface layer; the mounting surface layer, the tooth surface layer and the connecting surface layer are compact structures; the reticular porous base layer is located in a cavity formed by the outer contour layer, and fiber trabeculae in a porous grid structure are provided in the reticular porous base layer.
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