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2019 24th International Conference on Methods and Models in Automation and Robotics (MMAR)最新文献

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Integrated Maintenance Decision Making Platform for Gantry Cranes in Container Terminal 集装箱码头龙门吊综合维修决策平台
J. Szpytko, Yorlandys Salgado Duarte
The paper presents a risk-based model to coordinate the preventive-predictive maintenance process of gantry cranes in a container terminal with vessels high demand. The model coordinates the preventive-predictive maintenance process minimizing the risk of Gantry Cranes Inefficiency (GCI). The risk is estimated with a sequential Markov Chain Monte Carlo (MCMC) simulation model. In this paper, the Preventive-Predictive Maintenance Scheduling (PPMS) process of gantry cranes is non-linear stochastic optimization problem and it is efficiently solved with the algorithms Particle Swarm Optimization (PSO). The model allows the terminal container operators to obtain a maintenance schedule that minimizes the risk of GCI, as much as possible in a container terminal; as well as establishing the desired level of risk. The paper demonstrates the proposed model effectiveness with data of a real container terminal.
提出了一种基于风险的集装箱码头龙门吊预防性-预见性维修协调模型。该模型协调了预防-预测维修过程,最大限度地降低了龙门起重机低效率的风险。采用时序马尔可夫链蒙特卡罗(MCMC)仿真模型对风险进行了估计。本文将龙门起重机预防性-预见性维修调度(PPMS)过程作为一个非线性随机优化问题,采用粒子群优化(PSO)算法进行有效求解。该模型允许码头集装箱运营商获得维护计划,以最大限度地减少集装箱码头的GCI风险;以及建立期望的风险水平。本文用实际集装箱码头的数据验证了该模型的有效性。
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引用次数: 2
Calculation of descriptive statistics by devices with low computational resources for use in calibration of V2I system 用低计算资源的设备计算描述统计量,用于V2I系统的校准
K. Kubiak, M. Banach, R. Dlugosz
In this work we present modified iterative methods for computing basic statistical quantities (mean, variance) for use in the calibration process of a system based on V2I (vehicle-to-infrastructure) communication devices. Such devices, mounted in the road and urban infrastructure (RSU - road side equipment) may be used as support for autonomous vehicles moving in urban environment. Calibration is necessary to determine the positions of the RSUs in global coordinate system (GCS) and to record this information in their internal memory. The proposed modifications to conventional iterative algorithms aim at adapting these methods to the application in devices with low computational abilities or directly at the transistor level in specialized integrated circuits.
在这项工作中,我们提出了用于计算基本统计量(均值,方差)的改进迭代方法,用于基于V2I(车对基础设施)通信设备的系统校准过程。安装在道路和城市基础设施中的此类设备(RSU—道路侧设备)可用于支持在城市环境中行驶的自动驾驶车辆。为了确定rsu在全局坐标系(GCS)中的位置并将此信息记录在其内部存储器中,需要进行校准。对传统迭代算法的改进旨在使这些方法适应于低计算能力的器件或直接在专用集成电路的晶体管级的应用。
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引用次数: 2
Mechatronics Design, Modelling and Controlling of the Stewart-Gough Platform Stewart-Gough平台的机电一体化设计、建模与控制
Dawid Owoc, K. Ludwiczak, R. Piotrowski
This paper presents a mechatronics design of a low-cost Stewart-Gough platform (SGP) with rotary actuators. The designed SGP is supposed to be applied in a ball & plate control system. The synthesis of the ball & plate control system is also within the subject of the paper. A mechatronics design process of the SGP was conducted with computer-aided design (CAD) software. Unique analytical solutions of an inverse kinematics problem (IKP) of the SGP were presented for both prismatic actuators and rotary actuators. Five geometry constants which affect the final range of movement of the SGP were defined. An interactive movable 3D model of the SGP was created. The 3D model was used to test a range of movement of the SGP and to detect a potential crossing of elements during their motion. A mathematical model of a ball & plate system was designed. A control synthesis was conducted with rapid control prototyping using the MATLAB environment. A prototyped and implemented control law was based on two proportional integral derivative (PID) controllers.
提出了一种低成本Stewart-Gough平台的机电一体化设计方案。所设计的SGP可应用于球板控制系统。球板控制系统的综合也在本文的研究范围之内。利用计算机辅助设计(CAD)软件对SGP进行了机电一体化设计。给出了运动学逆问题(IKP)的唯一解析解,该解适用于圆柱驱动器和回转驱动器。定义了影响SGP最终运动范围的5个几何常数。建立了一个可交互移动的SGP三维模型。3D模型用于测试SGP的一系列运动,并检测运动过程中元素的潜在交叉。设计了球板系统的数学模型。在MATLAB环境下进行了快速控制原型的控制综合。基于两个比例积分导数(PID)控制器的控制律原型和实现。
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引用次数: 0
Adaptive Sliding Mode Control for Synchronization of Unified Hyperchaotic Systems 统一超混沌系统同步的自适应滑模控制
Wang-Long Li, Wei-Lun Liang, Kuo-Ming Chang
This paper addresses synchronization control of four-dimensional unified drive-response hyperchaotic system. First, a unified four-dimensional hyperchaotic system can be implemented by an electrical circuit. Then, using the sliding mode control technique and Lyapunov stability theory, an adaptive sliding mode controller is proposed for unified drive-response hyperchaotic systems with dead-zone input, unknown system parameters, and external disturbance to achieve the synchronization control goal. Finally, experimental results are given to demonstrate the effectiveness and robustness of the proposed control scheme.
研究了四维统一驱动-响应超混沌系统的同步控制问题。首先,可以通过电路实现统一的四维超混沌系统。然后,利用滑模控制技术和Lyapunov稳定性理论,针对具有死区输入、未知系统参数和外部干扰的统一驱动-响应超混沌系统,提出了一种自适应滑模控制器,以实现同步控制目标。最后给出了实验结果,验证了所提控制方案的有效性和鲁棒性。
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引用次数: 2
A Simple Heuristic Approach for Attitude/Altitude Control of a Quadrotor with Uncertain Parameters 一种参数不确定四旋翼飞行器姿态高度控制的简单启发式方法
A. Ailon, S. Arogeti
In this article we present a simple control procedure for a quadrotor that ensures convergence to a required altitude and attitude set-points under conditions of unknown physical parameters. The quadrotor model is highly nonlinear. The altitude set-point strategy is based on a two-mode control strategy: coarse and the fine motion modes and a sort of huristic process. In the first control mode we apply piecewise control functions. In the attitude regulation the design procedure is based on the passivity-based approach and in particular the controller is independent of the system physical parameters. The considered control strategy might be useful in various aerial missions in which stable hovering is required as for example in reconnaissance and aerial photography flights. The control design complies with the system structure which restricts the thrust force to act in one direction. Simulation results demonstrate the controller performance.
在这篇文章中,我们提出了一个简单的控制程序四旋翼,以确保收敛到所需的高度和姿态设定点在未知的物理参数的条件下。四旋翼模型是高度非线性的。高度设定值策略基于粗、精两种运动模式的控制策略和一种人文过程。在第一种控制模式中,我们应用分段控制函数。在姿态调节的设计过程中,采用了基于被动性的方法,特别是控制器不依赖于系统的物理参数。所考虑的控制策略可能在需要稳定悬停的各种空中任务中有用,例如在侦察和航空摄影飞行中。控制设计符合约束推力单向作用的系统结构。仿真结果验证了控制器的性能。
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引用次数: 0
Optimization of Traffic Signal Control Based on Game Theoretical Framework 基于博弈理论框架的交通信号控制优化
Jian Guo, I. Harmati
This paper presents a model of intelligent traffic signal control using a game theoretical framework based on decision-making operations. This model aims at finding an optimal solution to reduce traffic congestion and minimize the waiting time of cars in the urban transportation system. The expected strategies can be generated in the game theoretical framework to control the traffic signals for each incoming links (i.e. sections) in the intersection so that the vehicles are distributed optimally. In this system, each incoming link is regarded as a single player and the status of signal light (green or red) can be considered as the decisions made by these players. Thus, the global optimal solution for selecting the best routes of vehicles comes out by combining all the decisions and evaluating the cost function in this game. Furthermore, the effectiveness of the global optimal strategy and Nash equilibrium strategy produced from a game theoretical framework and constant strategy (i.e. the time interval of red and green lights is always constant and periodical) are compared after implemented in one intersection.
本文采用基于决策操作的博弈理论框架,提出了智能交通信号控制模型。该模型旨在寻找城市交通系统中减少交通拥堵和最小化车辆等待时间的最优解。在博弈理论框架中生成预期策略,控制交叉口各进入环节(即路段)的交通信号,使车辆得到最优分配。在这个系统中,每一个进入的链路都被视为一个玩家,信号灯的状态(绿灯或红灯)可以被认为是这些玩家所做出的决定。因此,通过综合所有决策并评估博弈中的成本函数,就得到了选择车辆最佳路线的全局最优解。在此基础上,比较了全局最优策略和由博弈论框架和恒定策略(即红灯和绿灯的时间间隔总是恒定和周期性的)产生的纳什均衡策略在一个交叉口实施后的有效性。
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引用次数: 2
Parameter identification for the fractional order, state space model of heat transfer process using Atangana-Baleanu operator 用Atangana-Baleanu算子对传热过程分数阶状态空间模型进行参数辨识
K. Oprzȩdkiewicz, W. Mitkowski
In the paper the parameters identification problem for a new, non integer order, state space model of heat transfer process is presented. The proposed model uses Atangana-Baleanu derivative operator. The analytical formula of step response is proposed. The parameters of the model are estimated via numerical minimization of the Mean Square Error (MSE) cost function. Finally the proposed model is compared to fractional order models using Caputo (C) and Caputo-Fabrizio (CF) operators. Results of numerical tests show, that the accuracy of the proposed model is better than accuracy of CF model, but worse, than accuracy of the C model.
本文提出了一种新的非整数阶传热过程状态空间模型的参数辨识问题。该模型采用Atangana-Baleanu导数算子。提出了阶跃响应的解析公式。通过对均方误差(MSE)代价函数的数值最小化来估计模型的参数。最后利用Caputo (C)和Caputo- fabrizio (CF)算子与分数阶模型进行了比较。数值试验结果表明,该模型的精度优于CF模型,但低于C模型的精度。
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引用次数: 0
Neural Data Processing in Scanner of Static Elements 静态元素扫描仪中的神经数据处理
M. Kaminski, Mateusz Malarczyk
This article presents the design and the subsequent implementation stages for the low-cost shape scanner of relatively small elements. The main concept of hardware and data processing algorithm are described. The code used for controlling the operation of individual parts of the device was implemented in the Arduino platform. Special software for managing work of the scanner and collecting measurement data was prepared using the Processing programming language. Assuming cost reduction and simple device construction, limited precision of the shape scanning is expected. In order to improve the obtained results, reduce the disturbances and increase the resolution (the number of points describing shape), additional data conversions performed using the neural network were used.
本文介绍了相对小元件的低成本形状扫描仪的设计和后续实现阶段。介绍了硬件的主要概念和数据处理算法。用于控制设备各个部件操作的代码在Arduino平台上实现。采用Processing编程语言编写了用于扫描仪工作管理和测量数据采集的专用软件。假设降低成本和设备结构简单,形状扫描的精度有限。为了改善得到的结果,减少干扰和增加分辨率(描述形状的点的数量),使用神经网络进行额外的数据转换。
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引用次数: 0
Simulation platform for wireless data communication using a new signal reconstruction method 在无线数据通信仿真平台上采用了一种新的信号重构方法
P. Majewski, W. Hunek
A platform for simulation of MIMO wireless data transmission processes is presented in this paper. The innovative tool implements authors' solution based on the polynomial approach related to the nonsquare matrices. Through an application of some nonunique inverses of nonsquare propagation matrices it is possible to increase an efficiency of signal recovery, which is confirmed by the theoretical background and a number of simulation instances. Thus, the useful environment can compete with other platforms employing different techniques. This statement is discussed in this paper.
本文提出了一个MIMO无线数据传输过程仿真平台。该创新工具基于非方阵的多项式方法实现了作者的解决方案。通过应用非平方传播矩阵的非唯一逆,可以提高信号恢复的效率,理论背景和大量仿真实例证实了这一点。因此,有用的环境可以与使用不同技术的其他平台竞争。本文对这一说法进行了讨论。
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引用次数: 0
Embedded heart rate analysis based on sound sensing 基于声音传感的嵌入式心率分析
M. Rosół, L. Wieckowski
The exact location of heartbeats in the phonocardiogram signal is crucial for correct segmentation and classification of the S1 and S2 heart sounds. This task becomes difficult due to the inclusion of noise in the acquisition process and due to the fact that the implementation concerns the embedded system. In this article, we present a low-cost system of location and classification of heart sounds in S1 and S2 based on a single-chip microcontroller and MEMS microphone. The experimental data analysis methods in time and frequency domains are also presented. The heartbeat segmentation process includes autocorrelation to predict the time of the heartbeat cycle. The time-frequency characteristics are extracted with a Fast Fourier Transform to analyze diastole and systole heart cycles.
心音图信号中心跳的准确位置对于S1和S2心音的正确分割和分类至关重要。由于在采集过程中包含噪声,并且由于实现涉及嵌入式系统,因此这项任务变得困难。在本文中,我们提出了一个基于单片机和MEMS麦克风的低成本的S1和S2心音定位和分类系统。给出了实验数据的时域和频域分析方法。心跳分割过程包括自相关来预测心跳周期的时间。利用快速傅立叶变换提取心脏的时频特征,分析心脏舒张和收缩周期。
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引用次数: 2
期刊
2019 24th International Conference on Methods and Models in Automation and Robotics (MMAR)
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