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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

394
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
394
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

450
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
450
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

327
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
327
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

347
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
347
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

473
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
473
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

218
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
218

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相关实验视频

Updated: Jun 14, 2025

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
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为工业级远程操作车辆 (ROV) 提供负担得起的3D定向可视化解决方案.

Mohammad Afif Kasno1, Izzat Nadzmi Yahaya2, Jin-Woo Jung1

  • 1Department of Computer Science and Engineering, Dongguk University, Seoul 04620, Republic of Korea.

Sensors (Basel, Switzerland)
|August 29, 2024
PubMed
概括

水下机器人操作人员现在可以通过新的3D定位监控系统来提高他们的空间意识. 这种具有成本效益的解决方案增强了ROV控制,并降低了在水下操作期间设备损坏的风险.

关键词:
3D ROV定位意识的提高有成本效益的ROV 3D可视化.实时可视化实时可视化工人阶级的ROV可以使用.工作级 ROV 操作约束

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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 海洋学 海洋学 海洋学
  • 计算机视觉 计算机视觉

背景情况:

  • 远程操作车辆 (ROV) 操作员面临着由于2D摄像头有限的导向挑战,影响了水下任务的准确性和安全性.
  • 在水下环境中,可见度和定向意识差,可能导致机器人手臂的位置不准确,并可能损坏工具.

研究的目的:

  • 开发和评估ROV的3D定向监控系统,以提高操作员的意识和控制.
  • 为了创建一个具有成本效益的解决方案,实时3D可视化ROV定向.

主要方法:

  • 使用九个自由度 (DOF) 测量传感器来捕获滚动,俯冲,偏移和方向数据.
  • 开发了一个系统来生成和处理3D成像,创建一个实时3D模型的ROV的水下定位.
  • 采用了一个开源平台用于3D可视化和模拟.

主要成果:

  • 通过短期造船厂测试,证明了工人级ROVs3D定向可视化系统的可行性.
  • 实现了低于2%的平均绝对误差 (MAE),表明定向监控的高精度.
  • 在3D模拟中展示了一个ROV复制品的运动和方向的实时视频演示.

结论:

  • 开发的3D定向监控系统是改善ROV操作的可行且潜在的成本效益高的解决方案.
  • 该系统增强了水下可见性和定向意识,这对于精确的ROV臂部位和工具处理至关重要.
  • 进一步开发可以扩大这种技术在各种水下机器人任务中的应用.