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自主移动机器人基于行为的导航策略及其实现 总被引:14,自引:0,他引:14
为了开发具有自主导航功能的移动机器人,我们必须提供智能推理的能力,模糊控制和基于行为的导航可以实现这一点,本文讨论了把模糊逻辑推理应用到自主移动机器人的行为控制系统中。 相似文献
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壁面移动机器人是运行于极限环境下的自主移动机器人,其控制系统应具备一定程度的智能和对未知环境的实时响应能力。本文提出了壁面移动机器人的控制体系结构,建立了基于CAN总线的分布式机器人控制系统硬件平台,并根据所提出的控制器结构设计了控制软件。 相似文献
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徐森金 《A&S(安防工程商)》2004,(7):98-101
城市路网交通信号控制(Urban Traffic Control)系统是现代城市交通管理的重要环节,也是智能交通系统(ITS)中最为基础.最为核心的组成部分,UTC系统的运行效率和协调控制效果是直接影响整个ITS及其各子系统运行效率的关键因素。本文将为大家讲述智能交通控制系统相关技术及实际运用情况。 相似文献
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本文介绍了新一代仿真器EasyPack/E在智能移动机器人控制系统的设计中的应用,总结了使用仿真器的技巧与应注问题。 相似文献
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基于AVR系列的8位单片机,采用嵌入式分层控制方法,完成智能移动机器人的控制系统的开发。在该系统中,包括信息管理层和分散控制层。主机在信息管理层,完成传感器等信息及控制指令的处理;从机在分散控制层,完成电机的伺服控制。与基于51系列单片机开发的控制系统相比,本系统所需的外围电路更简单,数据处理速度更快。实验表明,该系统运行稳定,机器人移动平稳。该设计方案尤其适用智能移动机器人的开发,还可以广泛应用于其它智能设备和生产线的开发。 相似文献
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自主移动机器人智能导航研究进展 总被引:31,自引:3,他引:31
本文对当前在自主移动机器人智能导航研究中已被采用并取得的研究方法进行了1,并根据已取得的成果预测了移动机器人智能导航研究的发展趋势,指出视觉导航和传感器融合将是移动机器人智能导航的主要发展方向。 相似文献
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自主式移动机器人系统的体系结构 总被引:6,自引:3,他引:6
本文在分析已有的几中多智能体协调模型的基础上,提出了一种用于自主式移动机器人系统的多智能体协调模型(离散)事件状态模型,用于组织协调自主式移动机器人系统中的传感器、规划、控制等智能体协调工作,确保自主式移动机器人在复杂、不断变化的环境中自主行驶,并在自主式移动机器人项目中较好地发挥了作用。 相似文献
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The purpose of this paper is to propose a hybrid trigonometric compound function neural network (NN) to improve the NN-based tracking control performance of a nonholonomic mobile robot with nonlinear disturbances. In the mobile robot control system, two NN controllers embedded in the closed-loop control system have the simple continuous learning and rapid convergence capability without the dynamics information of the mobile robot to realize the tracking control of the mobile robot. The neuron functions of the hidden layer in the three-layer feedforward network structure consist of the compound cosine function and the compound sine function combining a cosine or a sine function with a unipolar sigmoid function. The main advantages of this NN-based mobile robot control system are better real-time control capability and control accuracy by use of the proposed NN controllers for a nonholonomic mobile robot with nonlinear disturbances. Through simulation experiments applied to the nonholonomic mobile robot with the nonlinear disturbances of dynamics uncertainty and external disturbances, the simulation results show that the proposed NN control system of a nonholonomic mobile robot has better real-time control capability and control accuracy than the compound cosine function NN control system of a nonholonomic mobile robot and then verify the effectiveness of the proposed hybrid trigonometric compound function NN controller for improving the tracking control performance of a nonholonomic mobile robot with nonlinear disturbances. 相似文献
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轮式机器人是一个典型的非完整性系统。由于非线性和非完整特性,很难为移动机器人系统的轨迹跟踪建立一个合适的模型。介绍了一种轮式机器人滑模轨迹跟踪控制方法。滑模控制是一个鲁棒的控制方法,能渐近的按一条所期望的轨迹稳定移动机器人。以之为基础,描述了轮式机器人的动力学模型并在二维坐标下建立了运动学方程,根据运动学方程设计滑模控制器,该控制器使得机器人的位置误差收敛到零。 相似文献
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We have designed a mobile robot with a distribution structure for intelligent life space. The mobile robot was constructed
using an aluminum frame. The mobile robot has the shape of a cylinder, and its diameter, height, and weight are 40 cm, 80
cm, and 40 kg, respectively. There are six systems in the mobile robot, including structure, an obstacle avoidance and driving
system, a software development system, a detection module system, a remote supervision system, and others. In the obstacle
avoidance and driving system, we use an NI motion control card to drive two DC servomotors in the mobile robot, and detect
obstacles using a laser range finder and a laser positioning system. Finally, we control the mobile robot using an NI motion
control card and a MAXON driver according to the programmed trajectory. The mobile robot can avoid obstacles using the laser
range finder, and follow the programmed trajectory. We developed the user interface with four functions for the mobile robot.
In the security system, we designed module-based security devices to detect dangerous events and transmit the detection results
to the mobile robot using a wireless RF interface. The mobile robot can move to the event position using the laser positioning
system. 相似文献
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《Robotics and Autonomous Systems》2007,55(6):460-469
In this paper, a model-predictive trajectory-tracking control applied to a mobile robot is presented. Linearized tracking-error dynamics is used to predict future system behavior and a control law is derived from a quadratic cost function penalizing the system tracking error and the control effort. Experimental results on a real mobile robot are presented and a comparison of the control obtained with that of a time-varying state-feedback controller is given. The proposed controller includes velocity and acceleration constraints to prevent the mobile robot from slipping and a Smith predictor is used to compensate for the vision-system dead-time. Some ideas for future work are also discussed. 相似文献
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田锦秀 《计算机测量与控制》2023,31(9):150-156
为了有效确保移动机器人视觉伺服控制效果,提高移动机器人视觉伺服控制精度,设计了基于虚拟现实技术的移动机器人视觉伺服控制系统。通过三维视觉传感器和立体显示器等虚拟环境的I/O设备、位姿传感器、视觉图像处理器以及伺服控制器元件,完成系统硬件设计。从运动学和动力学两个方面,搭建移动机器人数学模型,利用标定的视觉相机,生成移动机器人实时视觉图像,通过图像滤波、畸变校正等步骤,完成图像的预处理。利用视觉图像,构建移动机器人虚拟移动环境。在虚拟现实技术下,通过目标定位、路线生成、碰撞检测、路线调整等步骤,规划移动机器人行动路线,通过控制量的计算,实现视觉伺服控制功能。系统测试结果表明,所设计控制系统的位置控制误差较小,姿态角和移动速度控制误差仅为0.05°和0.12m/s,移动机器人碰撞次数较少,具有较好的移动机器人视觉伺服控制效果,能够有效提高移动机器人视觉伺服控制精度。 相似文献
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《Robotics and Computer》1997,13(4):297-307
The use of a self-propelled mobile robot working in close proximity to a support vehicle for purposes of power, materials, etc. would be extremely valuable for highway maintenance and construction operations. This paper discusses the development of such a uniqe mobile robot system and emphasizes the robot's control system. The wheeled mobile robot is differentially steered and tethered to a support vehicle via a mechanical linkage which has position tracking capability. This mobile robot system has been termed the tethered mobile robot (TMR), and such an approach has the potential for use in a wide variety of highway maintenance operations. An optimal control system applicable to many highway maintenance operations is designed and implemented through the utilization of recently developed servo control technology. Experimental results presented show significant promise for the TMR system. 相似文献
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针对欠驱动移动机器人的多目标点跟踪问题,提出了一种基于粒子滤波的高精度跟踪控制方法;具体地,在考虑移动机器人采样噪声的情况下,首先利用粒子滤波对移动机器人的位置信息进行处理,得到精准可靠的移动机器人状态信息;在此基础上,根据欠驱动移动机器人的运动学模型以及目标点的分布状况,设计基于反馈控制的多目标点跟踪控制方法;相对于传统的欠驱动移动机器人目标点跟踪控制算法,改进了该控制方法中增益参数的约束条件,有效避免了移动机器人在接近目标点时产生的奇异现象,有效提高了移动机器人对目标点的跟踪精度;此外,分析了该目标点跟踪控制系统的稳定性,并通过数值仿真验证了所提方法的可行性与有效性. 相似文献