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浏览/检索结果: 共8条,第1-8条 帮助

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Mechatronics design of self-adaptive under-actuated climbing robot for pole climbing and ground moving 期刊论文  OAI收割
Robotica, 2021, 页码: 1-20
作者:  
Liu YW(刘玉旺);  Yu Y(于艺);  Wang DQ(王冬琦);  Yang S(杨晟);  Liu JG(刘金国)
  |  收藏  |  浏览/下载:49/0  |  提交时间:2021/12/20
Design and Simulation of Metamorphic Moving Mechanism of Insulator Inspection Robot 会议论文  OAI收割
Third ASME/IFToMM International Conference on Reconfigurable Mechanisms and Robots (ReMAR 2015), Beijing, China, July 20-22, 2015
作者:  
Li SJ(李树军);  Yang Q(杨强);  Geng M(耿蒙);  Wang HG(王洪光)
收藏  |  浏览/下载:22/0  |  提交时间:2016/03/12
Structural design and kinematic analysis of moving mechanism of insulator inspection robot 会议论文  OAI收割
3rd IFToMM Symposium on Mechanism Design for Robotics, MEDER 2015, Aalborg, Denmark, June 2-4, 2015
作者:  
Li SJ(李树军);  Yang Q(杨强);  Geng M(耿蒙);  Wang HG(王洪光);  Li, X.P.
收藏  |  浏览/下载:24/0  |  提交时间:2015/11/30
Moving mechanism design and analysis of suspension insulator inspection robot 会议论文  OAI收割
20th CISM-IFToMM Symposium on Theory and Practice of Robots and Manipulators, ROMANSY 2014, Moscow, Russian, June 23-26, 2014
作者:  
Li SJ(李树军);  Wang HG(王洪光);  Xiu, Shichao;  Li, Xiaopeng;  Ren, Zhaohui
收藏  |  浏览/下载:22/0  |  提交时间:2017/03/14
The new approach for infrared target tracking based on the particle filter algorithm (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:  
Sun H.;  Han H.-X.;  Sun H.
收藏  |  浏览/下载:63/0  |  提交时间:2013/03/25
Target tracking on the complex background in the infrared image sequence is hot research field. It provides the important basis in some fields such as video monitoring  precision  and video compression human-computer interaction. As a typical algorithms in the target tracking framework based on filtering and data connection  the particle filter with non-parameter estimation characteristic have ability to deal with nonlinear and non-Gaussian problems so it were widely used. There are various forms of density in the particle filter algorithm to make it valid when target occlusion occurred or recover tracking back from failure in track procedure  but in order to capture the change of the state space  it need a certain amount of particles to ensure samples is enough  and this number will increase in accompany with dimension and increase exponentially  this led to the increased amount of calculation is presented. In this paper particle filter algorithm and the Mean shift will be combined. Aiming at deficiencies of the classic mean shift Tracking algorithm easily trapped into local minima and Unable to get global optimal under the complex background. From these two perspectives that "adaptive multiple information fusion" and "with particle filter framework combining"  we expand the classic Mean Shift tracking framework.Based on the previous perspective  we proposed an improved Mean Shift infrared target tracking algorithm based on multiple information fusion. In the analysis of the infrared characteristics of target basis  Algorithm firstly extracted target gray and edge character and Proposed to guide the above two characteristics by the moving of the target information thus we can get new sports guide grayscale characteristics and motion guide border feature. Then proposes a new adaptive fusion mechanism  used these two new information adaptive to integrate into the Mean Shift tracking framework. Finally we designed a kind of automatic target model updating strategy to further improve tracking performance. Experimental results show that this algorithm can compensate shortcoming of the particle filter has too much computation  and can effectively overcome the fault that mean shift is easy to fall into local extreme value instead of global maximum value.Last because of the gray and fusion target motion information  this approach also inhibit interference from the background  ultimately improve the stability and the real-time of the target track. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.  
Grayscale control algorithm based on optokinetic nystagmus (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Chen Y.-S.; Gao H.-B.; Su W.-X.; Wang M.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
In order to reduce trailing phenomenon for moving image in FPD (Flat Panel Display)  Then  Finally  grayscale control algorithm is proposed that simulates CRT (Cathode Ray Tube) grayscale rendition process. First  based on algorithm derivation  implemented main program with VHDL (Very-High-Speed Integrated Circuit Hardware Description Language) is presented and specific rendition process is described. Experimental results indicate image quality is evidently improved and proposed algorithm reduces trailing phenomenon nearly 90%  after the reason of trailing phenomenon for moving image is introduced  algorithm realization steps and compared experiment results of traditional and proposed FPD grayscale control algorithm are discussed  when FPD displays moving image  work processes of human eyes are illuminated and grayscale rendition of a pixel is obtained  according with eyes reflection mechanism and programs can correctly implement on circuit board. 2010 IEEE.  when seeing moving image on CRT and FPD  
adaptive location update mechanism for network-constrained moving objects in changeful traffic conditions 会议论文  OAI收割
10th International Conference on Mobile Data Management, Taipei, TAIWAN, MAY 18-20,
Ding Zhiming; Guo Limin; Meng Xiaofeng
  |  收藏  |  浏览/下载:20/0  |  提交时间:2011/03/20
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