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相关概念视频

Planar Rigid-Body Motion01:22

Planar Rigid-Body Motion

547
Understanding the movement of a rigid body in planar motion involves recognizing that every particle within this body is traversing a path that maintains a consistent distance from a specific plane. This concept is fundamental in the study of physics and mechanical engineering, and it allows us to comprehend better how objects move in space.
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
547
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

555
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...
555
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

449
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...
449
Centroid of a Body: Problem Solving01:03

Centroid of a Body: Problem Solving

1.3K
The centroid of a body is a crucial concept in engineering and physics. Finding the centroid of a body can help determine its stability, its balance point, and even its design. In this context, consider a thin wire bent in the form of a quarter circular arc. Polar coordinates are used to calculate the centroid. The wire is first divided into small differential elements of a length equal to the radius multiplied by the differential angle.
The x-coordinates and y-coordinates of each element's...
1.3K
Indirect Motor Pathways01:22

Indirect Motor Pathways

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The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
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Carbon Skeletons01:12

Carbon Skeletons

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Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
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相关实验视频

Updated: Sep 11, 2025

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
08:19

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

8.9K

四足动物的自主导航使用覆盖路径规划与形态骨地图.

Alexander James Becoy1,2, Kseniia Khomenko1, Luka Peternel1

  • 1Department of Cognitive Robotics, Faculty of Mechanical Engineering, Delft University of Technology, Delft, Netherlands.

Frontiers in robotics and AI
|August 18, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的自主覆盖路径规划方法,使用2D地图骨架指导机器人. 该系统有效地导航和扫描环境,尽管面临地图漂移挑战,但实现了86.5%的途径点可达性.

关键词:
自主导航自主导航自主导航覆盖路径规划 覆盖路径规划它们是四足动物.机器人操作系统 2 2不结构化的环境.

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3D Kinematic Gait Analysis for Preclinical Studies in Rodents
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3D Kinematic Gait Analysis for Preclinical Studies in Rodents

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Fully Automated Leg Tracking in Freely Moving Insects using Feature Learning Leg Segmentation and Tracking FLLIT
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Fully Automated Leg Tracking in Freely Moving Insects using Feature Learning Leg Segmentation and Tracking FLLIT

Published on: April 23, 2020

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相关实验视频

Last Updated: Sep 11, 2025

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
08:19

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

8.9K
3D Kinematic Gait Analysis for Preclinical Studies in Rodents
10:19

3D Kinematic Gait Analysis for Preclinical Studies in Rodents

Published on: August 3, 2019

10.8K
Fully Automated Leg Tracking in Freely Moving Insects using Feature Learning Leg Segmentation and Tracking FLLIT
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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 人工智能的人工智能
  • 计算机科学 计算机科学

背景情况:

  • 自主机器人需要有效的覆盖路径规划,用于环境扫描.
  • 同时定位和映射 (SLAM) 提供了对机器人操作至关重要的二维导航地图.
  • 在非结构化环境中路径规划带来了重大的计算挑战.

研究的目的:

  • 提出一种用于在非结构化环境中自主覆盖路径规划的新方法.
  • 通过利用二维导航图的形态骨架来生成最佳路径.
  • 通过有限状态机器 (FSM) 控制来增强机器人导航和扫描能力.

主要方法:

  • 从2D地图的形态骨架生成一个兴趣点 (POI) 的序列.
  • 命令POI根据机器人的当前位置创建最佳路径.
  • 使用有限状态机器 (FSM) 来管理导航 (Nav2) 和本地扫描模式.

主要成果:

  • 该方法展示了高效的地图处理,地图阅读和路径规划计算需要几毫秒.
  • 该系统在受控的室内环境中在五次试验中实现了86.5%的途径点可达性.
  • 发现地图处理的计算时间分别为地图阅读器和路径规划器的22.0 ns/pixel和8.17 μs/pixel.

结论:

  • 建议的覆盖路径规划方法对于自主环境扫描是有效的.
  • 该系统在经过测试的场景中表现出良好的时间效率和途径点可达性.
  • 2D导航地图中的地图漂移仍然是一个限制,需要进一步调查.