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浏览/检索结果: 共5条，第1-5条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 Design and Implementation of the Intelligent Streak Camera Control System Based on Internet of Things 期刊论文 Guangzi Xuebao/Acta Photonica Sinica, 2017, 卷号: 46 作者:  Lü, Bin;  Pei, Cheng-Quan;  Tian, Jin-Shou;  Wen, Wen-Long;  Wang, Jun-Feng 收藏  |  浏览/下载：6/0  |  提交时间：2019/11/26 Adjustment accuracies  Camera control systems  Client-server models  Collaboration capabilities  Design and implementations  Distributed intelligent control  Ringing choke converters  Topological structure   Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China Xu K.; Jin G.; Gu S.; Yan Y.; Sun Z. 收藏  |  浏览/下载：75/0  |  提交时间：2013/03/25 Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper  some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system  which is composed of the drift adjusting mechanical frame  the ultrasonic motor  the driver of Ultrasonic Motor  the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor  photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system  was introduced the source of the disturbance  and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space  simple configuration  high position control precision  fine repeatability  self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.   Numerical simulation and control of molten droplet shape in short-circuit CO/sub 2/ arc welding 期刊论文 2010, 2010 Zhu Zhiming; Wu Wenkai; Chen Qiang 收藏  |  浏览/下载：3/0 Vehicle objects detection of video images based on gray-scale characteristics 会议论文 Wuhan, Hubei, China, March 7, 2009 - March 8, 2009 作者:  Cao, Jie;  Li, Li 收藏  |  浏览/下载：0/0  |  提交时间：2020/11/15 Education computing  Engineering education  Highway traffic control  Intelligent systems  Median filters  Object detection  Security systems  Television camera tubes  Vehicles  Background updates  Fast median filtering  Gray scale  Intelligent transportation systems  Vehicle detection  Video image   Real-time quality control on a smart camera (EI CONFERENCE) 会议论文 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Xiao C.; Zhou H.; Li G.; Hao Z. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 A smart camera is composed of a video sensing  high-level video processing  communication and other affiliations within a single device. Such cameras are very important devices in quality control systems. This paper presents a prototyping development of a smart camera for quality control. The smart camera is divided to four parts: a CMOS sensor  a digital signal processor (DSP)  a CPLD and a display device. In order to improving the processing speed  low-level and high-level video processing algorithms are discussed to the embedded DSP-based platforms. The algorithms can quickly and automatic detect productions' quality defaults. All algorithms are tested under a Matlab-based prototyping implementation and migrated to the smart camera. The smart camera prototype automatic processes the video data and streams the results of the video data to the display devices and control devices. Control signals are send to produce-line to adjust the producing state within the required real-time constrains.