Related Experiment Videos
Neural-network-based adaptive leader-following control for multiagent systems with uncertainties.
Long Cheng1, Zeng-Guang Hou, Min Tan
1Key Laboratory of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China. chenglong@compsys.ia.ac.cn
IEEE Transactions on Neural Networks
|July 6, 2010
Summary
This study introduces a neural-network adaptive control for multiagent systems, enabling follower agents to precisely track a leader
Area of Science:
- Robotics and Control Systems
- Artificial Intelligence
- Networked Systems
Background:
- Multiagent systems require robust control strategies to manage complex interactions.
- Adaptive control is crucial for systems with uncertain dynamics and external disturbances.
- Leader-following control is a fundamental problem in multiagent coordination.
Purpose of the Study:
- To develop a neural-network-based adaptive control approach for leader-following multiagent systems.
- To address uncertain agent dynamics and external disturbances effectively.
- To enable follower agents to track a time-varying leader state.
Main Methods:
- Utilizing a neural network to approximate uncertain agent dynamics.
- Employing a robust signal to counteract approximation errors and disturbances.
- Designing a decentralized control algorithm dependent only on neighbor information.
Main Results:
- Guaranteed tracking of the leader's time-varying state for all follower agents.
- Achieving arbitrarily small tracking errors without control input constraints.
- Demonstrated robustness against agent dynamics uncertainty and external disturbances.
Conclusions:
- The proposed neural-network adaptive control is effective for leader-following multiagent systems.
- The method accounts for agent dynamics uncertainty and time-varying leader states.
- Decentralized control based on local information is validated through simulations.
Related Concept Videos
Multi-input and Multi-variable systems
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
In the absence of...
Propagation of Uncertainty from Systematic Error
The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this particular...
Feedback control systems
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Propagation of Uncertainty from Random Error
An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
Open and closed-loop control systems
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 and...
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 and...
Control System Problem
In an open-loop system, such as a basic thermostat, the poles of the transfer function influence the system's response but do not determine its stability. However, when feedback is introduced to form a closed-loop system, such as an advanced thermostat that adjusts heating based on room temperature, stability is governed by the new poles of the closed-loop transfer function.
When forming a closed-loop system, issues can arise if the poles cross into the unstable region, leading to potential...
When forming a closed-loop system, issues can arise if the poles cross into the unstable region, leading to potential...