共查询到17条相似文献,搜索用时 140 毫秒
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移动机器人的地图构建与运动控制是智能移动机器人进行自主导航的基础.针对工业装配生产线的不同工位需要送料的需求,本文以一台轮式差速移动送料机器人为研究对象,利用激光雷达作为传感器,搭建一个装配生产线,设计、实现了基于ROS的移动送料机器人的地图构建与运动控制策略.利用slam_gmapping算法包,实现了机器人在特定装... 相似文献
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轮式移动机器人运动控制系统研究与设计 总被引:1,自引:0,他引:1
《现代电子技术》2016,(2):22-27
基于差速转向原理,设计了一套轮式移动机器人的运动控制系统。首先选择小车的模型(运动模型),进行运动学和力学分析,得出左右两侧车轮的速度约束,然后设计机器人的运动控制模块和无线遥控模块。运动控制模块可分为控制电路和驱动电路两大模块,控制电路以DSP作为核心控制部件,捕获编码器的信息并产生PWM信号;驱动电路以直流电机H桥集成芯片为驱动部件,接收来自DSP的控制信号。无线遥控模块选用AVR单片机作为控制核心,实现A/D转换和指令发送等功能。实验证明,该系统不仅能实现较长距离的无线控制,传输可靠,而且速度控制准确,车体运动灵活。 相似文献
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水下机器人的运动控制是当今世界水下机器人研究领域的一个研究热点,目前主要采用的智能控制方法有:模糊控制、神经网络控制、专家控制、自适应控制、PID调节器、滑模控制等。本文比较全面地查阅了水下机器人运动控制理论相关的文献,阐述了几种主要控制方法的基本原理,给出了控制器结构的设计方法,对水下机器人运行控制方法的选取、控制器的设计具有较好的参考意义。 相似文献
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随着机器人技术的不断发展,机器人在现在社会发展中发挥着越来越重要的作用。文中对实验室研发的多功能4-DOF机器人的运动控制相关问题进行研究。首先对4-DOF机器人的机构整体设计并PROE三维建模,然后通过基于D-H法建立机械臂坐标系,对4-DOF机器人进行运动学正逆解分析,在逆解计算中,提出了当两轴平行两轴耦合的计算方法,即将两轴关节角视为整体计算,再利用代数方法依次得出单个关节角。同时针对机械臂的连续轨迹运动给出轨迹规划的方法,为设计机械臂控制器的实现和机械臂的运动控制提供了依据。 相似文献
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The research focuses on the issue of controlling a manipulator attached to a deployment, which typically exhibits compliance due to its mechanical nature. The problem is generalized as a motion control of a robotic manipulator attached to oscillatory bases. Due to the complexity of this problem, we decompose the control task into two subtasks and distribute them over two different levels. In the design of hierarchical fuzzy control structure, the lower level controllers take into account each subsystem ignoring the interactions among them, while the upper level controller handles subsystem interactions. The upper level coordinator to deal with the model reduction error and makes the supervisory decision to the lower level. Moreover, the supervisory fuzzy rule set is used to adjust the correction factors of the hierarchical fuzzy controller to achieve better performance. Consequently, it is shown that the proposed control model offers several implementation advantages such as less on-line computation time, reduced effect of overshoot and chattering, and a fast convergent rate in simulation. The results of this study can be feasible to various mechanical systems, such as mobile robot, gantry cranes, underwater robot, and other dynamic systems mounted on oscillatory bases. 相似文献
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本文的主要研究内容是模糊逻辑在移动机器人已知全局路径的情况下通过对局部路径的分析进行轨迹跟踪运动中的应用。利用模糊逻辑在移动机器人运动控制中的优越性,结合驾驶员的丰富经验设计了移动机器人的模糊控制器,包括一个预瞄距离确定器和一个运动模糊控制器。设计出移动机器人运动控制进行仿真的方法及程序流程,对其进行计算机仿真验证控制... 相似文献
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Shiuh-Jer Huang Ji-Shin Lee 《Industrial Electronics, IEEE Transactions on》2000,47(2):421-428
It is well known that robotic manipulators are highly nonlinear coupling dynamic systems. It is difficult to establish an appropriate mathematical model for the design of a model-based controller. Although fuzzy logic control has a model-free feature, it still needs time-consuming work for the rules bank and fuzzy parameters adjustment. In this paper, a stable self-organizing fuzzy controller (SOFC) is proposed to manipulate the motion trajectory of a 5-degrees-of-freedom robot. This approach has a learning ability for responding to the time-varying characteristic of a robot. Its control rules bank can be established and modified continuously by online learning with zero initial fuzzy rules. In addition, this control strategy has effectively improved the stability problem of a previous SOFC. The experimental results show that this intelligent controller has a stable learning ability and good motion control capability 相似文献
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移动机器人轨迹跟踪的模糊PID-P型迭代学习控制 总被引:2,自引:0,他引:2
本文针对移动机器人轨迹跟踪控制问题的研究,提出了一种基于移动机器人运动模型的模糊开闭环PID-P型非线性离散迭代学习控制方法,给出了PID-P型迭代学习的收敛条件及其证明过程,并采用模糊控制的原理整定PID三个学习增益矩阵的参数.该控制方法提高了移动机器人对特定轨迹的重复跟踪能力,具有算法实现简单的特点.实验仿真结果表明,采用模糊开闭环PID-P型迭代学习控制算法对轨迹跟踪是可行有效的. 相似文献
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In this paper, a hybrid intelligent method including fuzzy inference and neural network is presented for real-time self-reaction of a mobile robot in unknown environments. A neural network with fuzzy inference (fuzzy neural network, FNN) presented can effectively improve the learning speed of the neural network. The method can be used to control a mobile robot based on the present motion situations of the robot in real-time; these situations include the distances in different directions between the obstacles and the robot provided by ultrasonic sensors, the target orientation sensed by a simple optical range-finder and the movement direction of the robot. Simulation results showed that the above method can quickly map the fuzzy relationship between the inputs and the output of the control system of the mobile robot. 相似文献
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针对网络遥操作机器人系统在实际应用中存在时延可能导致系统不稳定且难以控制的问题,通过对系统动力学建模和时延下系统理想性能分析,设计了一种新型的模糊滑模控制方案,在该方案中主机械手采用阻抗控制而从机械手采用模糊变结构控制。仿真结果表明,该控制方案能有效地抑制变结构控制中的抖振,系统能较好地实现位置比例跟踪和力比例跟踪。 相似文献
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针对一类带有未知死区和外来干扰的不确定机器人系统,基于变结构控制原理,采用简化的死区输入模型,利用具有线性可调参数的模糊系统的逼近能力,提出了一种积分变结构自适应模糊控制方案.该方案取消了要求逼近误差平方可积的条件,同时利用Young's不等式减少了模糊系统调节参数的数目,从而降低了实现的复杂性.最后,利用Lyapun... 相似文献