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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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An Agent-Based Traffic Recommendation System: Revisiting and Revising Urban Traffic Management Strategies 期刊论文  OAI收割
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS, 2022, 页码: 13
作者:  
Jin, Junchen;  Rong, Dingding;  Pang, Yuqi;  Ye, Peijun;  Ji, Qingyuan
  |  收藏  |  浏览/下载:38/0  |  提交时间:2022/07/25
On Performance Optimization and Quality Control for Approximate-Communication-Enabled Networks-on-Chip 期刊论文  OAI收割
IEEE TRANSACTIONS ON COMPUTERS, 2021, 卷号: 70, 期号: 11, 页码: 1817-1830
作者:  
Xiao, Siyuan;  Wang, Xiaohang;  Palesi, Maurizio;  Singh, Amit Kumar;  Wang, Liang
  |  收藏  |  浏览/下载:37/0  |  提交时间:2021/12/01
基于代理的网络化城市交通控制系统研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2013
作者:  
陈诚
收藏  |  浏览/下载:98/0  |  提交时间:2015/09/02
Efficient rate control technique for CCSDS image encoding (EI CONFERENCE) 会议论文  OAI收割
IEEE 2nd International Conference on Computing, Control and Industrial Engineering, CCIE 2011, August 20, 2011 - August 21, 2011, Wuhan, China
Jin L.
收藏  |  浏览/下载:101/0  |  提交时间:2013/03/25
For the limitation of data transmission bandwidth and real time transmission demand  generally image compression is required to implement the precise and flexible rate control algorithm. Rate control is an important issue in the image compression field. This paper considers the problem of rate allocation to each encoded segment for CCSDS image compression. One straightforward method is to allocate an equal amount of rate to each segment based on the average of the total number of compressed bytes. The obvious drawback of this method is that different segment will be reconstructed to different quality  so the overall quality of the reconstructed image will not be optimized. For the shortage of the original rate control method  as to improve the overall quality of the reconstructed image  an improved rate control algorithm is proposed for CCSDS image encoding. The key component of the proposed rate control method is the appropriate rate allocation. Experiments on the test images show that the PSNR can be increased at about 0.3dB on average  compared to the original algorithm. Therefore  experimental results confirm the effectiveness of the proposed algorithm in terms of objective evaluation  and the rate-distortion performance of the reconstructed image is improved. 2011 IEEE.  
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:33/0  |  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.  
Research of new wireless sensor network protocol: ZigBee RF4CE (EI CONFERENCE) 会议论文  OAI收割
International Conference on Electrical and Control Engineering, ICECE 2010, June 26, 2010 - June 28, 2010, Wuhan, China
作者:  
Xu Z.-J.;  Li D.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
Currently most existing remote controls for consumer electronics use infrared remotes (IR) technology to control devices which Increases the demand for advanced functionality that cannot be supported by existing IR. RF remotes provide new levels of interactivity and convenience for today's digital home when compared to IR remotes. New network protocols: ZigBee RF4CE are helping to make this technology accessible to us. In this paper  we first introduce the architecture and primitives of the ZigBee RF4CE  node initialization service  then present the researches of the Application layer and Network layer respectively. Focusing on the functions of Network layer including: frequency usage service  transmission control service  discovery service  power saving service  pairing service and security service. 2010 IEEE.  
基于人工交通系统的城市交通信号控制系统评价研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2008
作者:  
朱凤华
收藏  |  浏览/下载:93/0  |  提交时间:2015/09/02
Study on chromaticity balance for LED exposure system (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
A standard white light compounding algorithm based on combination of CCD illumination acquisition with computer control is presented for LEDs. The computer adjust and control the working current of LEDs by using three-color LEDs illumination acquired by CCD camera  achieved chromaticity coordinates error between compounded white light and standard white light D65 less than the threshold beforehand setted by this technique  then acquiring needed standard white light. Compounded white light meet the chromaticity error demand that is able to be changed  at the same time the CCD illumination acquisition system is eliminated. The proposed algorithm improved the light energy utilization efficiency of LED  and eliminated the offset of central wavelength and chromaticity coordinates due to work current change of LEDs. Experimental results show that the proposed algorithm achieved lesser chromaticity error uv=0.001 relative to standard white light D65  enhanced chromaticity uniformity of illumination field.