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基于视觉传感
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  vision-based
     A Vision-Based Automatic Seam Tracking System for Underwater Flux-Cored Arc Welding
     基于视觉传感的药芯焊丝水下焊接焊缝自动跟踪系统
短句来源
     Because of the strong thermal accumulating effect,many kinds of defects were easily produced in aluminum alloy MIG(metal inert-gas) welding process. The intelligent closed-loop control system of the vision-based aluminum alloy MIG welding pool width was developed to solve this problem.
     针对铝合金在焊接过程中热积累作用强、恒参数焊接时容易产生各种缺陷的问题,设计了基于视觉传感的熔宽闭环智能控制系统。
短句来源
  “基于视觉传感”译为未确定词的双语例句
     Quality Control of Welding Process Based on Visual Sense
     基于视觉传感的焊接过程质量控制
短句来源
     RESAERCH ON THE FIRST IMAGE ACQUISITION OF WELD POOL IN PULSED TIG WELDING BASED ON VISION SENSING
     基于视觉传感的脉冲TIG焊熔池一次图像获取的研究
短句来源
     The welding quality control based on visual sense will become the main development trend of welding intelligence technology.
     基于视觉传感的焊接质量控制将逐步成为焊接智能化技术的主要发展趋势。
短句来源
     STUDY AND PROSPECT OF SEAM-TRACKING TECHNOLOGY BASED ON VISION SENSORS
     基于视觉传感的焊缝跟踪技术研究和展望
短句来源
     Study of Weld Tracking Control System Based on Visual Sensor
     基于视觉传感的焊缝跟踪控制系统
短句来源
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  相似匹配句对
     Study of Weld Tracking Control System Based on Visual Sensor
     基于视觉传感的焊缝跟踪控制系统
短句来源
     Quality Control of Welding Process Based on Visual Sense
     基于视觉传感的焊接过程质量控制
短句来源
     Laser Vision Sensing Based Adaptive Welding for Aluminum Alloy
     基于激光视觉传感的铝合金自适应焊接
短句来源
     STUDY AND PROSPECT OF SEAM-TRACKING TECHNOLOGY BASED ON VISION SENSORS
     基于视觉传感的焊缝跟踪技术研究和展望
短句来源
     Study on the Seam Tracking Control System Based on CCD Visual Sensor
     基于CCD视觉传感的焊缝跟踪技术的研究
短句来源
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  vision-based
Vision-based weld seam tracking in gas metal arc welding
      
A novel mobile robot simultaneous localization and mapping (SLAM) method is implemented by using the Rao-Blackwellized particle filter (RBPF) for monocular vision-based autonomous robot in unknown indoor environment.
      
A review on vision-based control of robot manipulators
      
Recent vision-based control algorithms for robot manipulators are reviewed.
      
There are numerous research results in vision-based control.
      
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Calibration of the base coordinate systems of the two robot manipulators in a dual robot system has not received enough attentions,though its importance is obvious. This paper describes a base calibration method by taking advantage of a visual sensor held by one of the manipulators. This method is based on,but separated from the calibrations of the robot manipulators and the visual sensor themselves. Moreover,the algorithm proposed estimates the rotational and translational parameters with the help of the same...

Calibration of the base coordinate systems of the two robot manipulators in a dual robot system has not received enough attentions,though its importance is obvious. This paper describes a base calibration method by taking advantage of a visual sensor held by one of the manipulators. This method is based on,but separated from the calibrations of the robot manipulators and the visual sensor themselves. Moreover,the algorithm proposed estimates the rotational and translational parameters with the help of the same set of instrumental variables,thus no errors propagate between them. Simulations are provided to show the properties of the mehod.

多机器人协调系统研究中,机器人基坐标系之间的关系标定是一个重要而困难的问题,本文研究一种基于视觉传感的双机器人基坐标系关系的标定方法,通过一个机械手持有的摄像机观察另一个机械手末端的主动运动来实现.该方法独立于机器人系统中的其它关系的标定过程,可由系统自动完成,且不需要任何人工标定辅助.文中还给出了消除标定误差的直角坐标系坐标轴正交归一化的方法.仿真研究表明所给方法的有效性.

In order to solve the weld seam tracking problem in the pulse TIG welding process of some thin stainless steel workpiece with complicated curved surface,a high precision and rapidly responsing speed seam tracking method based on visual sensor has been developed in this paper.According to the process characteristics of pulse TIG welding,special wavelength filter and reasonable exposure schedule have been selected,the clear and amplified welding image ( from which weld seam,weld pool and tungsten electrode could...

In order to solve the weld seam tracking problem in the pulse TIG welding process of some thin stainless steel workpiece with complicated curved surface,a high precision and rapidly responsing speed seam tracking method based on visual sensor has been developed in this paper.According to the process characteristics of pulse TIG welding,special wavelength filter and reasonable exposure schedule have been selected,the clear and amplified welding image ( from which weld seam,weld pool and tungsten electrode could be identified directly ) could be acquired with industrial CCD camera.Then,an image processing algorithm has been programmed with Visual C language.With this algorithm,the central line of weld seam could be detected rapidly and precisely,the direction and distance which the tungsten electrode deviates from the central line of weld seam could be calculated out,the step motor has been driven to adjust the position of welding torch.Therefore,the precise and real time weld seam tracking has been realized.Experimental result shows that,processing time for single image is less than 120 ms,the seam tracking could be carried out if the angle between welding direction and weld seam is no more than 30°.Finally,the thin stainless steel workpiece with complicated curved surface has been successfully welded using this method.

针对某复杂曲面薄壁不锈钢工件精密脉冲TIG焊中的焊缝跟踪问题 ,本文研究了一种基于视觉传感的高精度、高实时性焊缝跟踪技术。根据脉冲TIG焊的工艺特点 ,该技术通过选择特定波长的滤光片及合理的曝光时刻 ,采用工业CCD摄像机获取可直接分辨出焊缝、熔池和钨极的清晰、放大的焊接区图像。采用VC语言设计的图像处理算法 ,可以快速准确地识别出焊缝中心线 ,提取钨极偏离焊缝中心线的方向和距离 ,驱动步进电机调节焊炬位置 ,实现高精度、高实时性的焊缝跟踪。试验结果表明 ,该技术的单幅图像处理周期小于 12 0ms,能实现焊炬运动方向与焊缝偏差角小于 3 0°的焊缝跟踪 ,满足了复杂曲面的薄壁不锈钢工件的精密焊接要求。

The realization techniques and current development of vision sensing system of agricultural robot are discussed, which include techniques of distance inspection, characteristic recognition of agricultural production and movement navigation of agricultural robot based on vision sensing. The distance inspection method based on binocular telemeter was used for picking grape or tomato by robots. The distance inspection systems with laser or infrared beam lights were proved which can help to counteract disturbance...

The realization techniques and current development of vision sensing system of agricultural robot are discussed, which include techniques of distance inspection, characteristic recognition of agricultural production and movement navigation of agricultural robot based on vision sensing. The distance inspection method based on binocular telemeter was used for picking grape or tomato by robots. The distance inspection systems with laser or infrared beam lights were proved which can help to counteract disturbance of sunlight and obtain accurate results. The geometrical shape, gray level, color, and reflected spectrum especially of farm production, can be used for agricultural robots to recognize the operated objects. The navigation method based on artificial guide line is a simple one for agricultural robot navigation, and the array characteristics of plant are also used for agricultural robot navigation. The future development trend of vision sensing system of agricultural robot is also discussed.

论述了农业机器人视觉传感系统的主要实现技术和当前的应用现状 ,包括基于视觉传感原理的距离检测技术 ,基于视觉传感原理的工作对象特征识别技术和基于视觉传感原理的运动导航技术。基于双目立体视觉的测距方法可应用于葡萄和番茄采摘机器人 ,配备激光光源和红外光源的测距系统可在室外有效抵抗日光变化对检测结果的影响。几何形状、灰度级、颜色 ,尤其是农产品表面的反射光谱特性 ,可以用于农业机器人识别操作对象。人工路标方法是实现农业机器人视觉导航的简单方法 ,另外 ,直接基于田间作物在空间排列的特征也可实现农业机器人的视觉导航。最后讨论了农业机器人视觉传感系统的未来发展趋势。

 
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