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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Data normalization of single camera visual measurement network system (EI CONFERENCE) 会议论文 2012 International Conference on Information Technology and Management Innovation, ICITMI 2012, November 10, 2012 - November 11, 2012, Guangzhou, China Zhou J.; Li S.-J.; Huang D.-Y.; Chen X.-L.; Zhang Y.-C. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 With the development of visual measurement system  Normalize the measured coordinates into the same world coordinate system  Apply in the three coordinate measuring machine(CMM) to have the simulation experiment  So the data normalization has the advantage of more high precision. (2013) Trans Tech Publications  the visual measurement system of single camera which applied in the imaging theory of optical feature points  then get the global data  the result indicates that the maximum absolute tolerance between the normalization coordinates via the center of point set and the ones measured by CMM directly is 0.058mm  Switzerland.  it has been widespread used in the modern production. Due to the limit of the environment in scene  and achieve the overall measurement  the visual measurement system of single camera could not measure the shield between the measured objects each other. Focus on this problem  But the one between the coordinate repeatedly measured at the position of one network control point is 0.066mm  present a kind of the the knowledge of measurement network based on the visual measurement of single camera  set up the measurement network system via the multi-control points. Measure the optical feature points in every network control point via the visual measurement system of single camera   Precision analysis of simulation systems with hardware-in-loop caused by performance of three-Axis virtual flight motion simulator (EI CONFERENCE) 会议论文 2011 International Conference on Manufacturing Science and Technology, ICMST 2011, September 16, 2011 - September 18, 2011, Singapore, Singapore Wang T.; Zhu M.-C.; Yin S.-L.; Jia H.-G. 收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25 Simulation systems with hardware-in-loop are composed by three-Axis virtual flight motion simulator  simulation computer  load torque simulator  and visual simulation systems. Three-Axis Virtual Flight Motion Simulator are used to simulate the attitude of missile in simulation system with hardware-in-loop  so its performance influenced the result of simulation directly. This paper mainly analyzed the factors which influenced the performance of a three-Axis virtual flight motion simulator which we are used now in the lab  then analyzed the entire simulation system's error caused by these factors through numerical simulation method. By analysis we can see that bandwidth is the main factor influenced the precision of simulation systems with hardware-in-loop  mechanical device installation error and measurement error may also cause some errors of the systems at the same time.   Design of semi-physical simulation for small satellite by virtual display (EI CONFERENCE) 会议论文 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China Xu K.; Lv Y.; Jin G. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 Semi-physical simulation of attitude control system is the more synthetically test and verify for designing of small satellite control system. It is an important means of small satellite development. However  the results of current semi-physical simulation system have a lot of non-intuitive. Compare with the actual environment  the simulation environment still has striking disparity. So the shortcomings affect precision of simulation. Based on the virtual display technology  the group semi-physical simulation system has been constructed for attitude control of small satellite due to the combination with xPC real-time environment  the simulation computer  high-precision single-axis air-bearing turntable  reaction wheel  air thrust device  fiber gyroscopes  sensors synchronizer  power subsystem and wireless devices virtual display computer etc. Semi-physical simulation achieved the visual simulation in orbit and tracked new information of virtual environment of space into real-time simulation computer. Simulation results show that the simulation system for real-time attitude and orbit position of small satellite semi-physical simulation has an excellent display effect. At the same time  Real-time transfuse of orbit information provides a more accurate space environment simulation. The simulation system of small satellite attitude control to design and evaluate the more direct and convenient. (2012) Trans Tech Publications  Switzerland.   The implementation of parachute jump commanding and simulation training system (EI CONFERENCE) 会议论文 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China Fang Y.; Li Y.; Guo L.; Lu M.; Cui S. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 In order to improve the method of training the commander  secondly  thirdly  Finally  the aerial instructor  we adopted Vega to develop the aerial instructor federate with the models we build with Creator on MFC at Visual C++6.0 platform  we implement the commander federate  we interlink the federate that we implemented above with RTI  back parachute commander  the guarantee unit federate  realize a cooperated parachute jump training system. Through lots of experiments and we compare the training system experiment result with the computes data  the guarantee unit and the aerial broadcaster  the back parachute commander federate and the aerial broadcaster federate on MFC at VC++6.0  we use the compare result to direct the trainee. This system makes the parachute jump command training more effective  in this paper  more safety  we used Vega  shorten training cycle  Creator  lower costs and weather protected. 2010 IEEE.  and RTI implement the Parachute Jump Commanding And Simulation System to simulate the parachute jump commanding process. In this system  firstly  we used Creator build the 3D models that we need in the system   Random noise filtering technology of piezoelectricity gyro (EI CONFERENCE) 会议论文 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Qingjun L.; Yongming Y. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 Inertia sensing elements are usually adopted as the sensors of velocity stabilization loop in airborne photoelectric equipments  therefore we need to adopt filtering processing to reduce influence to control system. In this paper  which are constituted stabilized control system  we analyze the characteristic of noise gyro drift  that purpose is reducing the influence of the movement of carrier to visual axis of photoelectric probing system. But gyro  and utilize Kalman filtering technology to conduct filtering processing to output signal of gyro  especially the piezoelectricity gyro generates drift  this method can reduce output noise effectively. The simulation results show that the proposed filtering processing method can improve the low velocity characteristic. 2010 IEEE.  which is the main error source of photoelectric stabilized control system   Spaceborne laser interconnect technology based on human bionics (EI CONFERENCE) 会议论文 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China He X.; Jin G.; Wang J. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 As a result of comparative study on human visual and Free Space Optical (FSO) communication  a new concept of satellites laser interconnect was proposed based on human bionics. For the laser link is difficult to set up directly  a new concept was given out based on the three processes of human visual capturing the objectives: voice assisting to guide  eyes' wide Field Of View (FOV) cursory capturing and eyes' foveal FOV high-resolution imaging. Three similar processes were introduced to spaceborne laser interconnect which were radio assisting to guide  beacons laser wide FOV capturing and communication laser narrow FOV capturing  so that the difficulty of setting up the optical communication link was reduced evidently. Meanwhile  the antenna optical system based on the bionics was given out. Each laser terminal configured two independent optical antenna  through the spaceborne storage and time-domain link switching  complex topology network could be set up. The simulation system was built using Virtual Reality Toolbox  the result showed that the laser terminal could search and set up communication links  which took about only lOOms from capturing the beacon to setting up communication. 2009 IEEE.   Dynamics simulation on control technology for 4WS vehicle steering performance (EI CONFERENCE) 会议论文 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China Rong-Hui Z.; Hong-Guang J.; Tao C. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 By combining visual preview kinematics  dynamic equation of steering system and 2-DOF steering dynamistic model of 4WS  it can easily attenuate the change and uncertainty of model. 2008 IEEE.  we establish the two degree of freedom model of four-wheel steering vehicle. And then the switching hyper plane is designed by applying the optimal control theory. During the change of parameter is little  4WS steering performance is carried out by adopting sliding variable structure controller. To improve the steering performance of 4WS  especially state variables convergent velocity  Kalman filter for 4WS is designed. And the robust optimal controller is designed for model and parameter is uncertainty. The simulation results show that the controller designed by the proposed method has good robustness   Platform and steady kalman state observer design for intelligent vehicle based on visual guidance (EI CONFERENCE) 会议论文 2008 IEEE International Conference on Industrial Technology, IEEE ICIT 2008, April 21, 2008 - April 24, 2008, Chengdu, China Rong-hui Z.; Rong-ben W.; Feng Y.; Hong-guang J.; Tao C. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 State observer design is one of key technologies in research field of intelligent vehicle. Experiment platform  visual guidance intelligent vehicle JLUIV-5  is establishedby Jilin University Intelligent Vehicle Group firstly. The system structure and assistant navigation control system  and different image identify algorithms to recognize preview path and stops for variable illuminations are introduced. The dynamic response equation of steering control system was got by system identification experiment. By combined with the preview kinematics model  and two-degree steering dynamic model of vehicle  the steering kalman filter mathematics model based on preview kinematics for intelligent vehicle was obtained. And observer is designed by applying steady Kalman filter theory. The simulation and experiment results  carry out in Jilin University Nanling Campus and Culture Center of Jilin Province  show that the image identify algorithms  and steady Kalmanstate observer designed by the proposed method has good adaptability for time-varying and parameters uncertain  it can satisfy intelligent vehicle trace the path reliably during outdoor experiment. 2008 IEEE.