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公开(公告)号：US10989638B2
公开(公告)日：2021-04-27
申请号：US16608639
申请日：2018-08-03
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Wei Chen , Jihong Ye , Qiang Wang , Qingyang Zhao
Abstract: A multi-functional support capable of transferring a horizontal and multi-point local vertical load is provided. The multi-functional support is mainly formed by detachably assembling a distribution beam capable of transferring a vertical load locally and independently at multiple points, detachable upright columns, a template beam and a support base. The distribution beam capable of transferring a vertical load locally and independently at multiple points is located between tops of the two upright columns. The two upright columns are mounted on the support base. The template beam is located between the two upright columns, arranged on the support base and connected to the support base. The support base is fixed on a ground. The distribution beam capable of transferring a vertical load locally and independently at multiple points, the detachable upright columns, the support base and the template beam are located in the same plane. The multi-functional support can perform various experiments such as vertical loading, horizontal reciprocating loading and multi-point local independent vertical loading. By means of the detachable upright columns, loading and constraint fixing of an experimental wall can be realized step by step, thus reducing damage to a specimen by a moving specimen. The damage form of the loaded specimen can be kept effectively.
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公开(公告)号：US11650135B2
公开(公告)日：2023-05-16
申请号：US17923645
申请日：2022-01-28
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Wei Chen , Jihong Ye , Jian Jiang , Rui Li , Chunjin Lin , Mengtian Li
CPC classification number: G01M99/002 , G01M5/0058
Abstract: A multi-dimensional space load and fire test system for a tunnel structure, which includes a multi-point loading self-balancing reaction force system having a rigid platform, two furnace body side-sealing apparatuses (22) and a model assembly and transport apparatus (23) for transporting and situating a tunnel model are on a track on the rigid platform (9), the two furnace body side-sealing apparatuses (22) are respectively used for sealing two end openings of the tunnel model, a tower-type combustion vehicle can be placed within an inner cavity of the tunnel model, a plurality of sets of evenly distributed self-adaptive loading apparatuses (3) used for exerting loading forces on an outer wall of the tunnel model are connected between two reaction force frames (1) of the multi-point loading self-balancing reaction force system. The present system is able to perform loading on tunnel models having different cross section shapes, can be adapted to testing requirements of tunnel structures having different cross section shapes, and with respect to tunnel structure fire testing in particular, a camera of the present system has a large imaging angle of view, the present invention has good heat resistance, possesses both terminal imaging and distance measurement, and can amply satisfy a use requirement for the high temperature environment of a tunnel fire.
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公开(公告)号：US10217229B2
公开(公告)日：2019-02-26
申请号：US15739779
申请日：2015-11-09
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Deqiang Cheng , Leida Li , Hai Liu , Guopeng Zhang , Wei Chen , Songyong Liu
Abstract: A method for tracking a moving target based on an optical flow method, including, providing video images, and implementing pre-processing of the images to generate pre-processed images; implementing edge-detection of the pre-processed images and using an optical flow method to extract target information from the pre-processed images, and on the basis of a combination of the edge-detection information and the extracted target information, generating a complete moving target; using an optical flow method to perform estimation analysis of the moving target and using a forward-backward error algorithm based on feature point trace to eliminate light-generated false matching points; and creating a template image and implementing template image matching to track the moving target. The method and system for tracking a moving target based on an optical flow method have the advantages of accurate and complete extraction and the ability to implement stable tracking over a long period of time.
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