基于混合神经动力学和人类行为的未知模型的机器人操纵器的预定义时间融合动力学控制
IEEE transactions on neural networks and learning systems
|September 13, 2023
概括
本研究介绍了未知操纵器模型的无模型机器人控制方法,确保任务在预设的时间内完成. 这种方法通过使可预测的任务完成和避免障碍来增强工业自动化.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制理论 控制理论
- 人工智能的人工智能
背景情况:
- 机器人操纵者经常面临未知的动力学模型的挑战,阻碍精确的控制和任务安排.
- 预先定义的时间趋同对于工业应用中至关重要,这些应用需要保证任务完成时间,无论初始条件如何.
研究的目的:
- 为机器人操纵器提出一种新的无模型动力控制方法,用于未知动力学的机器人操纵器.
- 为了实现监管任务的预定义时间趋同,并确保避免障碍.
- 通过模拟和实验验证控制器的稳定性和有效性.
主要方法:
- 为主要调节任务开发了一种变量参数预定义时间收式归零神经动力学 (ZND) 模型.
- 为了有效避开障碍,采用了传统的ZND模型.
- 渐变神经动力学 (GND) 模型被用来以无模型的方式调整雅可比矩阵,仅依赖控制信号和感官反.
- 为了分析控制器的稳定性,应用了利亚普诺夫稳定性理论.
主要成果:
- 拟议的方法成功实现了机器人操纵器调节任务的预定义时间融合.
- 使用ZND模型证明了有效的避开障碍.
- 使用GND模型的无模型方法证明能够使用未知的动力模型控制操纵器.
- 模拟和实验证实了该方法的有效性和相对于现有技术的优势.
结论:
- 开发的无模型动力控制策略为具有未知模型的机器人操纵器提供了保证的预定义时间融合.
- 集成ZND和GND模型为精确控制和安全导航提供了强大的解决方案.
- 这种方法对推进需要可预测和高效的机器人操作的自动化工业应用具有重大潜力.
相关概念视频
Open and closed-loop control systems
796
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
796
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
Hierarchy of Motor Control
2.8K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
2.8K
Controller Configurations
118
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...
118
Time-Domain Interpretation of PD Control
137
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
137
One-Degree-of-Freedom System
515
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...
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...
515


