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2013 9th Asian Control Conference (ASCC)最新文献

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Evolutionary game dynamics of multi-agent cooperation driven by self-learning 自学习驱动下多智能体合作的进化博弈动力学
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606032
Jinming Du, Bin Wu, Long Wang
Multi-agent cooperation problem is a fundamental issue in the coordination control field. Individuals achieve a common task through association with others or division of labor. Evolutionary game dynamics offers a basic framework to investigate how agents self-adaptively switch their strategies in accordance with various targets, and also the evolution of their behaviors. In this paper, we analytically study the strategy evolution in a multiple player game model driven by self-learning. Self-learning dynamics is of importance for agent strategy updating yet seldom analytically addressed before. It is based on self-evaluation, which applies to distributed control. We focus on the abundance of different strategies (behaviors of agents) and their oscillation (frequency of behavior switching). We arrive at the condition under which a strategy is more abundant over the other under weak selection limit. Such condition holds for any finite population size of N ≥ 3, thus it fits for the systems with finite agents, which has notable advantage over that of pairwise comparison process. At certain states of evolutionary stable state, there exists “ping-pong effect” with stable frequency, which is not affected by aspirations. Our results indicate that self-learning dynamics of multi-player games has special characters. Compared with pairwise comparison dynamics and Moran process, it shows different effect on strategy evolution, such as promoting cooperation in collective risk games with large threshold.
多智能体协作问题是协调控制领域的一个基础性问题。个体通过与其他人的联系或分工来完成共同的任务。进化博弈动力学提供了一个基本框架来研究代理如何根据不同的目标自适应地改变策略,以及他们的行为进化。本文对自学习驱动的多人博弈模型中的策略演化进行了分析研究。自学习动态对智能体策略更新具有重要意义,但以往很少对其进行分析。该方法基于自评价,适用于分布式控制。我们关注不同策略(agent的行为)的丰度及其振荡(行为切换的频率)。在弱选择极限下,我们得到一种策略比另一种策略更丰富的条件。该条件对N≥3的有限总体大小都成立,因此适用于具有有限智能体的系统,与两两比较过程相比具有显著的优势。在进化稳定状态的某些状态下,存在频率稳定的“乒乓效应”,不受愿望的影响。研究结果表明,多人游戏的自学习动态具有其特殊性。与两两比较动态和Moran过程相比,在大阈值集体风险博弈中,它对策略演化的促进作用不同。
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引用次数: 7
Locating WiFi access points in indoor environments using non-monotonic signal propagation model 利用非单调信号传播模型定位室内环境中的WiFi接入点
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606157
Saeed Varzandian, H. Zakeri, S. Ozgoli
In this paper it is shown that the widely used lognormal path loss signal propagation model may not be a good choice for every indoor environment. Instead, a non-monotonic signal propagation model for an indoor environment is presented. This model, combined with received signal strength values, relative distance and directional information can exhibit several applications. As an example, access point position estimation is studied in this paper and an algorithm is proposed for this purpose. It is shown that using relative distance, directional information and an arbitrary reference point, it is possible to find the relative location of access points. The performance of proposed model and algorithm is tested by real data and computer simulation.
本文的研究表明,广泛使用的对数正态路径损耗信号传播模型并不适用于所有室内环境。提出了一种室内环境下的非单调信号传播模型。该模型结合接收到的信号强度值、相对距离和方向信息,具有多种应用价值。本文以接入点位置估计为例进行了研究,并提出了一种算法。结果表明,利用相对距离、方向信息和任意参考点,可以找到接入点的相对位置。通过实际数据和计算机仿真验证了所提模型和算法的性能。
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引用次数: 8
Cluster consensus of Boolean multi-agent systems 布尔多智能体系统的聚类一致性
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606403
Fangfei Li, Yao Chen, Jinhu Lu, D. Hill
Consensus of the multi-agent systems (MASs) is ubiquitous in nature. Over the past decade, consensus of the MASs has received an increasing attention from various disciplines. Inspired by the cluster consensus of the discrete-time MAS, this paper aims at exploring the cluster consensus of the Boolean MAS and applies it to modeling the synchronous flashing of fireflies. Based on the graph theory and the Boolean matrix analysis, two cluster consensus criteria are established for the Boolean MASs with fixed and switching topologies. Furthermore, numerical simulations are also given to validate the effectiveness of these proposed criteria.
多智能体系统的共识在自然界中是普遍存在的。近十年来,群众共识越来越受到各学科的关注。受离散时间MAS的聚类一致性的启发,本文旨在探索布尔MAS的聚类一致性,并将其应用于萤火虫同步闪烁的建模。基于图论和布尔矩阵分析,建立了具有固定拓扑和切换拓扑的布尔质量的聚类一致准则。此外,数值模拟也验证了这些准则的有效性。
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引用次数: 1
Backstepping position control of two-mass systems with unknown backlash 未知间隙双质量系统的后退位置控制
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606181
Mirhamed Mola, A. Khayatian, M. Dehghani
This paper presents a backstepping control strategy to control the load position of two-mass systems with unknown backlash. The measurable signals for applying this nonlinear control law are assumed to be available from motor and load sides. For achieving the desired control goals, a precontrol block is designed too. This block which is fed by motor and load measurable signals, drives the required signals for executing the nonlinear backstepping control law. The simulation results on a sample two-mass system illustrate the effectiveness of the proposed algorithm.
针对具有未知间隙的双质量系统,提出了一种反步控制策略。假定应用该非线性控制律的可测信号来自电机侧和负载侧。为了实现预期的控制目标,还设计了预控制块。该模块由电机和负载可测信号馈送,驱动执行非线性反步控制律所需的信号。对一个样本双质量系统的仿真结果表明了该算法的有效性。
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引用次数: 15
A non-communicating multi-robot system with switchable formations 具有可切换队形的非通信多机器人系统
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606335
A. Cezayirli, F. Kerestecioğlu
We consider connected navigation of autonomous mobile robots with transitions in the group formation. The robots navigate using simple local steering rules without requiring explicit communication among themselves. The formations are achieved by designing proper cost functions and formation transitions are succeeded by switching among these cost functions. The resulting system is proven to be deadlock-free under certain conditions.
研究了具有群体过渡的自主移动机器人的连接导航问题。机器人使用简单的局部转向规则进行导航,而不需要它们之间进行明确的通信。通过设计合适的成本函数来实现储层的形成,并通过这些成本函数之间的转换来实现储层的过渡。所得到的系统在一定条件下证明是无死锁的。
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引用次数: 1
The parameterization of all stabilizing two-degree-of-freedom simple multi-period repetitive controllers with specified frequency characteristic 给定频率特性的所有稳定二自由度简单多周期重复控制器的参数化
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606255
T. Sakanushi, Yun Zhao, Jie Hu, S. Tohnai, K. Yamada
The simple multi-period repetitive control system proposed by Yamada and Takenaga is a type of servomechanism for periodic reference inputs. This system follows a periodic reference input with a small steady-state error, even if there is periodic disturbance or uncertainty in the plant. In addition, simple multi-period repetitive control systems ensure that transfer functions from the periodic reference input to the output and from the disturbance to the output have finite numbers of poles. Yamada and Takenaga clarified the parameterization of all stabilizing simple multi-period repetitive controllers. Recently, Yamada et al. proposed the parameterization of all stabilizing two-degree-of-freedom(TDOF) simple multi-period repetitive controllers that can specify the input-output characteristic and the disturbance attenuation characteristic separately. However, when using the method of Yamada et al., it is complex to specify the low-pass filter in the internal model for the periodic reference input that specifies the frequency characteristic. This paper expands the result by Yamada et al. and proposes the parameterization of all stabilizing TDOF simple multi-period repetitive controllers with specified frequency characteristic such that the low-pass filter can be specified beforehand.
Yamada和Takenaga提出的简单多周期重复控制系统是一种周期参考输入的伺服机构。该系统遵循具有小稳态误差的周期性参考输入,即使在对象中存在周期性干扰或不确定性。此外,简单的多周期重复控制系统确保从周期参考输入到输出和从干扰到输出的传递函数具有有限个数的极点。Yamada和Takenaga阐明了所有稳定简单多周期重复控制器的参数化。最近,Yamada等人提出了可以分别指定输入输出特性和干扰衰减特性的所有稳定二自由度(TDOF)简单多周期重复控制器的参数化。然而,当使用Yamada等人的方法时,为指定频率特性的周期参考输入指定内部模型中的低通滤波器是复杂的。本文扩展了Yamada等人的结果,提出了所有具有指定频率特性的稳定TDOF简单多周期重复控制器的参数化,从而可以预先指定低通滤波器。
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引用次数: 0
Improving quadrotor 3-axes stabilization results using empirical results and system identification 利用经验结果和系统辨识改进四旋翼三轴稳定效果
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606281
Ovunc Elbir, Anil Ufuk Batmaz, C. Kasnakoğlu
In current literature, Unmanned Aerial Vehicles (UAVs), especially quadrotors, is one of the hot topics of study which has numerous applications. This paper focuses on modeling the quadrotor in order to improve the empirical results. The procedure consists of four stages: 1) Experimental determination of controller coefficients, 2) Data collection, 3) System identification, 4) Controller redesign. After these stages, it is observed that the system is capable of stabilize on the roll, pitch and yaw axes. Coefficient tuning on the identified model noticeably improves the settling time and steady state oscillation amplitude.
在目前的文献中,无人飞行器(uav),特别是四旋翼飞行器,是研究的热点之一,有着广泛的应用。本文重点对四旋翼飞行器进行建模,以改进经验结果。该过程包括四个阶段:1)实验确定控制器系数,2)数据收集,3)系统辨识,4)控制器重新设计。经过这些阶段,观察到该系统能够在横摇、俯仰和偏航轴上稳定。对所识别的模型进行系数调整,可以显著改善模型的稳定时间和稳态振荡幅度。
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引用次数: 3
Stabilizing control of an autonomous bicycle 自动自行车的稳定控制
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606316
Harun Yetkin, Ü. Özgüner
The problem of self-stabilization of a bicycle has been a research area for more than a century. However, many researchers have confined their study in self stabilization of bicycles at constant velocities. In this paper, we utilized the precession effect of the gyroscope to stabilize the bicycle both at zero forward velocity and varying velocities. Equation of motion of a bicycle with a flywheel mounted on its bottom is derived and a first order observer-based sliding mode controller is designed. The performance of the controller is simulated on different road structures. It is shown that the designed controller succeeded to stabilize the bicycle throughout the trajectory.
一个多世纪以来,自行车的自稳定问题一直是一个研究领域。然而,许多研究者将他们的研究局限于自行车在等速下的自稳定。在本文中,我们利用陀螺仪的进动效应来稳定自行车在零前进速度和变速度下的稳定性。推导了底部装有飞轮的自行车运动方程,设计了基于观测器的一阶滑模控制器。对该控制器在不同道路结构上的性能进行了仿真。仿真结果表明,所设计的控制器成功地实现了自行车的全程稳定。
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引用次数: 16
Double resonant controller for fast atomic force microscopy 用于快速原子力显微镜的双共振控制器
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606209
S. Das, H. Pota, I. Petersen
This paper presents the design and implementation of a double resonant controller with an integral controller in the piezoelectric tube scanner (PTS) of an atomic force microscope (AFM) to damp the resonant mode of the scanner, increase the bandwidth of the overall closed-loop system, and improve the high speed imaging performance of the AFM. The X and Y axes of the PTS is treated as an independent single-input singleoutput system and the system is identified by using the measured open-loop data. In order to measure the performance of the proposed controller a comparison of the scanned images have been made by using the proposed controller and the built-in proportional-integral (PI) controller of the AFM. The comparison of the scanned images demonstrate the performance improvement achieved by the proposed controller.
为了抑制原子力显微镜(AFM)压电管扫描仪(PTS)的谐振模式,增加整个闭环系统的带宽,提高原子力显微镜(AFM)的高速成像性能,设计并实现了一种带有积分控制器的双谐振控制器。将PTS的X轴和Y轴视为独立的单输入单输出系统,并利用测量的开环数据对系统进行识别。为了测量所提出的控制器的性能,将所提出的控制器与AFM内置的比例积分(PI)控制器进行了扫描图像的比较。扫描图像的对比表明,所提出的控制器取得了性能上的改进。
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引用次数: 6
A control design method for unknown systems using frequency domain data 基于频域数据的未知系统控制设计方法
Pub Date : 2013-06-23 DOI: 10.1109/ASCC.2013.6606148
S. Khadraoui, H. Nounou, M. Nounou, A. Datta, S. Bhattacharyya
This paper deals with fixed-structure controller design for stable linear systems by using measurements. Most control design approaches developed in the literature are generally based on a mathematical model which can be obtained via identification system by using a set of measured data. However, an identified model, which is often built on the basis of some assumptions, cannot perfectly describe complex behaviors characterizing physical systems. Thus, the performance expected for the closed-loop system will be limited by the quality of such models used in the control design process. Hence, data-based controller design methods can be viewed as a possible alternative to model-based methods. In this paper, we propose to directly utilize frequency response data in the controller design. The principle is to design fixed-structure controllers for which the closed-loop frequency response fits a desired frequency response. This problem is formulated as an error minimization problem. The main feature of our proposed approach is that controller can be designed free of any mathematical model, which allows to avoid errors associated with identification process. Moreover, it enables to select low-order controllers, which are suitable for embedded systems. A simulation example is given to illustrate and validate the efficacy the proposed approach.
本文用测量方法研究稳定线性系统的固定结构控制器设计。文献中开发的大多数控制设计方法通常基于一个数学模型,该模型可以通过使用一组测量数据的识别系统获得。然而,一个确定的模型,往往是建立在一些假设的基础上,不能完美地描述表征物理系统的复杂行为。因此,闭环系统的预期性能将受到控制设计过程中使用的这些模型的质量的限制。因此,基于数据的控制器设计方法可以看作是基于模型方法的一种可能的替代方法。在本文中,我们建议在控制器设计中直接利用频率响应数据。其原理是设计固定结构控制器,使其闭环频率响应符合期望的频率响应。这个问题被表述为误差最小化问题。我们提出的方法的主要特点是,控制器可以设计自由的任何数学模型,这允许避免与识别过程相关的错误。此外,它还可以选择适合嵌入式系统的低阶控制器。最后通过仿真实例验证了该方法的有效性。
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引用次数: 4
期刊
2013 9th Asian Control Conference (ASCC)
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