实时轨迹平滑和避开障碍:一种基于虚拟力引导的方法
Yongbin Su1, Chenying Lin1, Tundong Liu1
1Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361104, China.
Sensors (Basel, Switzerland)
|June 27, 2024
概括
这项研究引入了一种新的实时轨迹平滑方法,该方法使用虚拟力来避免障碍物. 该方法有效地为动态环境生成光滑,无碰撞的路径.
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
- 控制系统 控制系统
背景情况:
- 在动态环境中实时轨迹规划需要平稳的路径.
- 基于采样的规划器通常会产生需要后处理的摇摇欲的轨迹.
- 目前的局部光滑技术可能会因为优化断开连接而导致障碍物碰撞.
研究的目的:
- 开发一种新的实时轨迹平滑方法,结合障碍限制.
- 为了提高效率,允许与轨迹规划并行执行.
- 为了减少轨迹平滑中的计算开销.
主要方法:
- 从原始轨迹点引入虚拟的吸引力.
- 嵌入了从障碍物中获得虚拟排斥力.
- 利用所产生的力来引导平滑的轨迹生成.
主要成果:
- 在实验中实现了实时轨迹平滑.
- 在轨道生成过程中有效避免障碍物.
- 证明了较低的计算开销和并行执行能力.
结论:
- 拟议的方法成功地在实时生成平滑的,无障碍的轨迹.
- 它为动态环境提供了一种高效且计算成本低廉的解决方案.
- 通过整合避难障碍解决现有的局部平滑方法的局限性.
相关概念视频
Three-Dimensional Force System:Problem Solving
660
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
660
Three-Dimensional Force System
2.0K
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
2.0K
Two-Dimensional Force System: Problem Solving
564
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
564
Relative Motion Analysis using Rotating Axes-Problem Solving
395
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...
Here, in order to determine the magnitude of velocity and acceleration for point...
395
Two-Dimensional Force System
898
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
898
Relative Velocity in Two Dimensions
7.2K
Relative velocity is the velocity of an object as observed from a particular reference frame, or the velocity of one reference frame with respect to another reference frame. The concept of relative velocity can be used to describe motion in two dimensions. Consider a particle P and two reference frames S and S′. The position of the origin of S′ as measured in S is , the position of P as measured in S′ is , and the position of P as measured in S is , which can be evaluated by...
7.2K


