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    • 6. 发明申请
    • ROBOT CONTROL DEVICE
    • 机器人控制装置
    • US20150039128A1
    • 2015-02-05
    • US14448292
    • 2014-07-31
    • KABUSHIKI KAISHA TOSHIBA
    • Junji OAKI
    • B25J9/16
    • B25J9/1651B25J9/1638B25J9/1641B25J9/1653G05B2219/41392G05B2219/41398
    • A robot control device according to an embodiment includes: an observer receiving the angular velocity of the motor and the current command value, and estimating an angular acceleration of the link, and angular velocities of the link and the motor from a simulation model of an angular velocity control system of the motor; a first feedback unit calculating an axis torsion angular velocity from a difference between the angular velocities of the link and the motor estimated by the observer, and giving feedback to the angular velocity control system; a second feedback unit feeding back the angular acceleration of the link estimated by the observer to the angular velocity control system; and a first feedback constant calculating unit compensating an end effector load mass and increases inertia at the second feedback unit when an end effector load in the nonlinear dynamic model has low inertia.
    • 根据实施例的机器人控制装置包括:观察者接收电动机的角速度和当前指令值,并且从角度的模拟模型估计链路的角加速度和链路和电动机的角速度 电机速度控制系统; 第一反馈单元,从所述链路的角速度与由所述观测者估计的所述电动机之间的差计算轴扭转角速度,并向所述角速度控制系统提供反馈; 第二反馈单元将由观察者估计的链路的角加速度反馈到角速度控制系统; 以及当非线性动力学模型中的末端执行器负载具有低惯性时,第一反馈常数计算单元补偿末端执行器负载质量并增加第二反馈单元处的惯性。
    • 8. 发明授权
    • Robot control device
    • 机器人控制装置
    • US09156166B2
    • 2015-10-13
    • US14448292
    • 2014-07-31
    • KABUSHIKI KAISHA TOSHIBA
    • Junji Oaki
    • G05B19/04G05B19/18B25J9/00B25J9/16
    • B25J9/1651B25J9/1638B25J9/1641B25J9/1653G05B2219/41392G05B2219/41398
    • A robot control device according to an embodiment includes: an observer receiving the angular velocity of the motor and the current command value, and estimating an angular acceleration of the link, and angular velocities of the link and the motor from a simulation model of an angular velocity control system of the motor; a first feedback unit calculating an axis torsion angular velocity from a difference between the angular velocities of the link and the motor estimated by the observer, and giving feedback to the angular velocity control system; a second feedback unit feeding back the angular acceleration of the link estimated by the observer to the angular velocity control system; and a first feedback constant calculating unit compensating an end effector load mass and increases inertia at the second feedback unit when an end effector load in the nonlinear dynamic model has low inertia.
    • 根据实施例的机器人控制装置包括:观察者接收电动机的角速度和当前指令值,并且从角度的模拟模型估计链路的角加速度和链路和电动机的角速度 电机速度控制系统; 第一反馈单元,从所述链路的角速度与由所述观测者估计的所述电动机之间的差计算轴扭转角速度,并向所述角速度控制系统提供反馈; 第二反馈单元将由观察者估计的链路的角加速度反馈到角速度控制系统; 以及当非线性动力学模型中的末端执行器负载具有低惯性时,第一反馈常数计算单元补偿末端执行器负载质量并增加第二反馈单元处的惯性。
    • 9. 发明授权
    • Robot control method and device
    • 机器人控制方法和装置
    • US06295484B1
    • 2001-09-25
    • US09424561
    • 1999-11-24
    • Masao OjimaHirokazu KariyazakiHidenori Tomisaki
    • Masao OjimaHirokazu KariyazakiHidenori Tomisaki
    • G06F1900
    • B25J9/163B25J9/1633B25J9/1641G05B19/19G05B2219/39186G05B2219/39326G05B2219/39353G05B2219/39355G05B2219/41195G05B2219/41398G05B2219/41443G05B2219/42156
    • When a multiaxial robot with a mechanism having spring elements between electric motors of respective axes and robot arms is controlled, the path precision of a tool tip is increased without causing vibrations produced by mechanical interference between axes and high-frequency vibrations of electric motors. A model controller (1) is supplied with position commands Xref—L, Xref—U with respect to the electric motors and outputs model motor position commands &thgr;Mm—L, &thgr;Mm—U, model motor speed commands {dot over (&thgr;)}Mm—L, {dot over (&thgr;)}Mm—U, and model feed-forward commands UFF—L, UFF—U to feedback controllers (10L, 10U) which actuate and control the electric motors and the robot arms. The model controller (1) includes therein corrective quantity calculators (3L, 3U) for calculating corrective quantities (corrective torques) in view of interfering forces acting between the axes from the other axes to cancel the interfering forces. The model controller (1) outputs the model feed-forward commands with the corrective quantities added thereto.
    • 当具有在各轴的电动机和机器人臂之间具有弹簧元件的机构的多轴机器人被控制时,刀尖的路径精度增加,而不会引起轴之间的机械干扰和电动机的高频振动产生的振动。 向模型控制器(1)提供相对于电动机的位置指令Xref-L,Xref-U,并输出模型电动机位置指令θMm-L,θMm-U,模型电动机速度指令{dot over(theta)} Mm -L,{dot over(θ)} Mm-U,以及模型前馈命令UFF-L,UFF-U到启动和控制电动机和机器人臂的反馈控制器(10L,10U)。 考虑到作用在来自其他轴的轴之间的干涉力以消除干扰力,模型控制器(1)包括用于计算校正量(校正转矩)的校正量计算器(3L,3U)。 模型控制器(1)输出模型前馈命令与添加的校正量。