一个可预测的避难障碍模型,基于运动规划冗余操纵器的几何配置
Fengjia Ju1, Hongzhe Jin1, Binluan Wang1
1State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
本研究为在动态环境中工作的冗余操纵器引入了一种新的障碍回避模型. 该方法通过预测碰撞和实时优化运动来提高响应速度和系统安全性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统 控制系统
- 计算几何学的计算几何学
背景情况:
- 在动态环境中运行的机器人操纵器面临着实时避障挑战.
- 确保操纵者和周围人员的安全至关重要.
研究的目的:
- 为冗余操纵器开发一个动态的,全身的避障策略.
- 准确地建模操纵器-障碍物相互作用,用于碰撞预测.
主要方法:
- 提出了一个基于操纵器几何学的新型"三角碰撞平面"模型.
- 开发了三个成本函数:运动状态,正面碰撞和接近时间.
- 将这些成本整合到反向动力学中,使用梯度投影方法.
主要成果:
- 模拟和实验证明了改进的操纵器响应速度.
- 与现有技术相比,拟议的方法显著提高了系统安全性.
- 验证了三角碰撞平面模型的有效性.
结论:
- 三角碰撞平面模型为冗余操纵器中的实时动态障碍回避提供了一种有效的方法.
- 这种方法在复杂的环境中提高了运营安全性和效率.
相关概念视频
Controller Configurations
126
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
126
Relative Motion Analysis using Rotating Axes-Problem Solving
424
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...
424
Planar Rigid-Body Motion
481
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...
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
481
Three-Dimensional Force System:Problem Solving
695
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...
695
Kinematic Equations: Problem Solving
12.5K
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the appropriate kinematic equations to solve for the unknowns. Either one or two kinematic equations are needed to solve for the unknowns, depending on the known and unknown quantities. Generally, the number of equations required is the same as the number of unknown quantities in the given example. Two-body pursuit problems always require two...
12.5K
Two-Dimensional Force System: Problem Solving
619
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...
619


