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我喜欢电脑,是一个不折不扣的“电脑迷”。当我还是六七岁的孩童时,就对电脑充满着好奇。进入小学后,在老师的指导下,我开始学习机器人操作与应用,逐渐迷上了机器人,开始参加各种比赛,先后获得全市、全国小学生机器人灭火比赛的一等奖,与机器人结下了不解之缘。 相似文献
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生产应用中,卫生洁具施釉机器人手臂有效提高了卫生洁具陶瓷生产的效率和产品质量,机器人手臂利用压缩空气将釉浆雾化后喷涂在卫生洁具坏体表面,节省了原材料,将代替卫生洁具陶瓷生产过程中以手工施釉为主的操作。卫生洁具生产中施釉工段的工作环境比较恶劣,粉尘和噪声对人体的危害很大,这就客观的要求施釉作业由原来的手工操作转变为机器人手臂操作。 相似文献
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进入21世纪以来利用机器人代替人工作业的理念已经在全世界范围内得到了广泛认可,机器人技术的发展水平已成为一个国家高新技术产业的代表,而智能安防机器人作为众多机器人中的一员更是受到了广泛的关注。针对智能安防机器人设计了一套功能强大、性能稳定的控制系统,首先采用模块化的设计思路,对智能安防机器人控制系统的总体架构进行了设计;其次对机器人控制系统主控器进行了设计研发,并对机器人运动控制子系统、传感器子系统以及摄像头控制子系统进行了研究设计;最后利用机器人平台对控制系统进行了实验测试,并对实验结果进行了分析总结。可以预见,安防机器人在降低人工操作危险性、减少企业成本等方面具有重要意义。 相似文献
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王盟 《国外电子测量技术》2007,26(10):7-9
遥操作机器人就是通过计算机网络利用机器人对远距离环境进行观测和操作.本文为了对不确定环境下的遥操作机器人系统进行较好的控制,研究和分析了基于神经网络的遥操作机器人系统的预测控制算法.该算法通过建立远地从机械手和环境模型,预测从机械手返回的作用力,实现主、从机械手之间的无时滞跟踪.仿真结果表明,此算法能够获得较好的稳定性和操作性能. 相似文献
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基于Backstepping时变反馈和PID控制的移动机器人实时轨迹跟踪控制 总被引:10,自引:0,他引:10
根据机器人的运动学模型,采用分层控制的思想将移动机器人的轨迹跟踪控制分为两部分:轨迹跟踪控制器和机器人速度PID控制器。基于Backstepping时变状态反馈方法和Lyapunov理论,引入具有双曲正切特性的虚拟反馈量,提出一种移动机器人全局轨迹跟踪算法:采用PID速度控制器以满足机器人驱动电机实时调速要求。考虑到机器人的动力学约束,引入受限策略以保证其运动平滑。在基于DSP的两轮驱动移动机器人上对算法进行了实时轨迹跟踪试验,取得了满意的控制效果。 相似文献
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Development and Control of Multi‐Degree‐of‐Freedom Mobile Robot for Acquisition of Road Environmental Modes
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The acquisition of information about the environment around a mobile robot is important for purposes such as controlling the robot from a remote location and in situations such as that when the robot is running autonomously. In some research, audiovisual information has been used. However, the acquisition of information about force sensation, which is included in environmental information, has not been well investigated. The mobile‐hapto, which is a remote control system with force information, has been proposed, but the robot used for the system can acquire only the horizontal components of forces. For this reason, in this research a three‐wheeled mobile robot consisting of seven actuators was developed and a control system was created for it. The robot can acquire information about horizontal and vertical forces without using force sensors. By using this robot, detailed information on the forces in the environment can be acquired and the operability of the robot and its ability to adjust to the environment are expected to improve. 相似文献
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为了解决输入受限下非完整轮式移动机器人的跟踪控制问题,考虑迭代学习控制方法,设计了一种迭代学习控制律,这里所设计的迭代学习控制律结合了系统的跟踪误差和约束下的上一代控制律.通过应用范数分析理论,对跟踪误差的收敛性进行了理论分析,验证了设计的控制律的有效性.最后,给出了一个仿真实例以证明理论分析结果的正确性,仿真结果表明,在设计的迭代学习控制律作用下,具有输入受限的非完整轮式移动机器人能够获得很好的跟踪控制性能,跟踪误差最终收敛于零的很小邻域内. 相似文献
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针对分拣机器人视觉反馈跟踪精度差、耗时较长的问题,研究基于粒子群算法-反向传播(particle swarm optimization-back propagation, PSO-BP)神经网络的分拣机器人视觉反馈跟踪方法,以提升视觉反馈跟踪效果。依据分拣机器人的视觉反馈信息,建立分拣机器人运动学模型,并求解分拣机器人机械臂输出位置和输入位置的误差函数;利用PSO算法优化BP神经网络的权值与偏置;在权值与偏置优化后的BP神经网络内,输入误差函数,预测分拣机器人视觉反馈跟踪控制量;利用预测视觉反馈跟踪控制量,在线调整增量式比例-积分-微分(proportional-integral-derivative, PID)的参数,输出高精度的分拣机器人视觉反馈跟踪控制量,实现分拣机器人视觉反馈跟踪。实验结果表明,该方法可有效视觉反馈跟踪分拣机器人机械臂的关节角;存在干扰情况下,在运行时间为10 s左右时,阶跃响应趋于稳定;有干扰情况下,视觉反馈跟踪的平均误差为0.09 cm,耗时平均值为0.10 ms;无干扰情况下,平均误差为0.03 cm,耗时平均值为0.04 ms。 相似文献
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Yeong-Chan Chang Bor-Sen Chen 《International Journal of Adaptive Control and Signal Processing》1998,12(6):495-526
Both dynamic state feedback as well as output feedback tracking control designs are presented in this paper for constrained robot systems under parametric uncertainties and external disturbances. The previous studies on tracking control design, not considering the velocity measurements, address only the unconstrained robot design. In contrast, a dynamic output feedback controller based on a linear and reduced-order observer that uses only position measurements is proposed here for the first time to treat the trajectory tracking control problem of constrained robot systems. Both adaptive state feedback control schemes and adaptive output feedback control schemes with a guaranteed H∞ performance are constructed. It is shown that all the variables of the closed-loop system are bounded and a pre-assigned H∞ tracking performance is achieved, in the sense that the influence of external disturbance on the tracking motion error can be attenuated to any specified level. Moreover, it is also shown that the motion and force trajectories asymptotically converge to the desired ones as the dynamic model of robot systems is well-known and the external disturbance is neglected. Finally, simulation examples are presented to illustrate the tracking performance of a two-link robotic manipulator with a circular path constraint by the proposed control algorithms. © 1998 John Wiley & Sons, Ltd. 相似文献
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Zhihua Qu Hanqi Zhuang 《International Journal of Adaptive Control and Signal Processing》1993,7(2):77-90
A new class of non-linear learning control laws is introduced for a robot manipulator to track a given trajectory in performing a series of tasks. The learning control scheme is applicable to robots with both resolute and prismatic joints, requires only position and velocity feedback, and removes the acceleration measurement required by the existing results. It has been shown that under the proposed learning control the tracking errors are always guaranteed to be asymptotically stable with respect to the number of trials. The proposed control is robust in the sense that exact knowledge about the non-linear dynamics is not required except for bounding functions on the magnitudes. In addition, the new learning scheme can be used without assumptions such as repeatability of robot motion, repeatability of tasks and resetting of initial tracking errors. 相似文献
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针对传统机器人控制终端灵活性不足的问题,结合飞速发展中的Android移动平台,设计了一种基于Android的小型移动机器人远程控制系统。该系统由小型移动机器人、无线通信模块和Android平台3部分组成,通过无线局域网实现下位机与上位机之间的视频传输以及数据通信。给出了控制系统的总体架构,并具体阐述了系统硬件及软件两方面的实现。最后对系统进行了实验测试,测试结果表明,Android移动终端可远程控制移动机器人的运动状态,并实时获取机器人传回的视频,视频播放流畅,整个系统有着较好的稳定性和可靠性。 相似文献