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浏览/检索结果: 共17条，第1-10条 帮助

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Development and in-situ application of a real-time cutting tool forces monitoring system in TBM tunnelling 期刊论文  OAI收割
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2022, 卷号: 124, 期号: -, 页码: -
作者:  Huang, Xing;  Liu, Quansheng;  Liu, Bin;  Wang, Dongdong;  Wang, Xinyu
  |  收藏  |  浏览/下载：17/0  |  提交时间：2023/08/02
Design of Coordination System for Composite Mobile Robot Platform Oriented to Nuclear Fusion Vessel 期刊论文  OAI收割
JOURNAL OF FUSION ENERGY, 2021, 卷号: 40
作者:  Zhang, Qiang;  Song, Bo;  Cai, Bin;  Sun, Yuxiang
  |  收藏  |  浏览/下载：98/0  |  提交时间：2021/11/15
The design of remote participation platform for EAST plasma control 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2016, 卷号: 112, 期号: 无, 页码: 1045-1048
作者:  Yuan, Q. P.;  Xiao, B. J.;  Zhang, R. R.;  Chai, W. T.;  Liu, J.
收藏  |  浏览/下载：29/0  |  提交时间：2017/12/18
Virtual system calibration based on jitter prediction of internet time-delay for teleoperation systems 会议论文  OAI收割
3rd IFAC Conference on Intelligent Control and Automation Science, ICONS 2013, Chengdu, China, September 2-4, 2013
作者:  Hua JN(化建宁);  Cui YJ(崔玉洁);  Wang XZ(王雪竹);  Yang FP(阳方平);  Yang YH(杨艳华)
收藏  |  浏览/下载：34/0  |  提交时间：2014/04/16
基于无线传感器网络的农田灌溉远程监控系统 期刊论文  OAI收割
排灌机械工程学报, 2013, 卷号: 31, 期号: 01, 页码: 66-04
郁晓庆; 吴普特; 韩文霆; 张增林
收藏  |  浏览/下载：107/0  |  提交时间：2014/10/15
Space optical remote sensor of the CAE thermal control index calculation method (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
作者:  Li L.
收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25
The thermal control indicators CAE methods of Space optical remote sensor are analyzed in the presented work. We sat up a thermal optical analysis model for space optical remote sensor. By assuming fully covered by in-orbit temperature load  and using the finite element method for thermal deformation analysis  we obtained the optical remote sensor surface deformation and displacement under various thermal loading. Using ZERNIKE polynomial  wave was fitted to obtain ZERNIKE polynomial coefficients which were incorporated into the optical system design. Using CODE V optical calculation software  heat-ray machines under elastic deformation of the system point spread function  transfer function (MTF)  wave front differential (WFE) etc. were calculated. Image quality changes of remote sensors are discussed in variety assumed cases such as temperature loads of quality change. By repeated iteration  critical value of temperature fields meeting the design requirements are obtained for the optical system. Optical indicators were converged to the temperature field indicator  then reasonable indicators of thermal control for remote sensors were obtained. For the thermal control design  this method provided a reliable basis for design. (2011) Trans Tech Publications  Switzerland.  
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.; Yan Y.; Xu K.; Jin G.
收藏  |  浏览/下载：51/0  |  提交时间：2013/03/25
With the development of aerospace remote sensing technology  the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures  the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera  the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera  the compensation method of image motion to space camera is researched. First  the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second  the system adopts 80C31 as controller of drift angle  and adopts stepping motor for actuators  and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced  and it achieve the closed-loop control of the drift angle position. At the last  this paper analyses the transmission precision of the mechanism. Through the experiment  we measured the actual precision of the image motion compensation mechanism  and compared with the theoretical analysis. There are two major contributions in this paper. First  the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism  it will bring adverse effects for the precision and stiffness of mechanism. For this problem  This paper designed a image motion compensation that have some advantages such as small size  light weight at the same time  high precision  stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second  the traditional mechanism control need to corrected  fitting and iterative for the control formula of mechanism. Only in this way  we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting  It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5  -4  -3  -2  -1  0  +1  +2  +3  +4  +4 as the expectation value of the imaginary drift angle  we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'  and it can achieve the high-precision image motion compensation. 2011 SPIE.  
Design and analysis of auto-focus assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:  Chen W.;  Gao X.
收藏  |  浏览/下载：39/0  |  提交时间：2013/03/25
Spaceborne remote sensing camera may be out of focus when the environment and photographic distance changes. In order to get higher ground sampled distance for the camera  based on the experience gained from the development of a remote sensing camera  working principle of auto-focus assembly control system was discussed. Time of waveform extraction was reduced. It sets force an auto-focus assembly that uses cam and line guide rail in order to move the lens group. The motion error of the auto-focus assembly was difficult to be eliminated and would affect on the focusing accuracy of the spaceborne remote sensing camera directly. So it was analyzed at both ends of the focusing structure. The CCD detector can keep stable when the remote sensing camera is imaging. The motion error was tested to verify the validity of the simulation result and it is less than 0.01mm. Its accuracy meets using demand. The focusing method of moving focal plane is suitable for spaceborne remote sensing camera. 2011 IEEE.  
Design of VxWorks-based software architecture for space optical remote sensor (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Tao Y.; Song K.
收藏  |  浏览/下载：43/0  |  提交时间：2013/03/25
In order to satisfy requirements of real time and parallel control for the space optical remote sensor and implement the high integration of software  a kind of VxWorks-based multitask software architecture was put forward. Firstly  the technological requirements of optical remote sensor were analyzed in detail and functions and performances of the optical remote sensor were fixed. Task that was based on each function of optical remote sensor was compartmentalized. Then  software architecture of optical remote sensor was designed. Finally  experiments were carried out and results verified the accuracy and feasibility of the software architecture. Test results showed that the software architecture satisfied the requirements of real time and parallel control for the space optical remote sensor  its functions and performances met the system design target perfectly  and the software architecture was applicable to the engineering application of space instrument. 2011 IEEE.  
Research of Large Telescope Control System 会议论文  OAI收割
San Diego, California, USA, 2010-6-27
作者:  Zhang Zhenchao;  Shuai Xiaoying
收藏  |  浏览/下载：31/0  |  提交时间：2014/01/05