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    • 7. 发明授权
    • Robot control apparatus and method
    • 机器人控制装置及方法
    • US07212886B2
    • 2007-05-01
    • US10735241
    • 2003-12-12
    • Hideo NagataKenichi YasudaYasuyuki Inoue
    • Hideo NagataKenichi YasudaYasuyuki Inoue
    • G06F19/00
    • B25J9/1633G05B2219/39188G05B2219/39237G05B2219/40342
    • A robot control apparatus including a motion torque calculating section for calculating a motion torque command which is required for a motion of a servo motor, a disturbance torque estimating section for calculating a disturbance torque, a minute displacement relationship calculating section for calculating a minute displacement relationship between a task coordinate system of a robot and a joint coordinate system of the servo motor, an external force calculating section for carrying out a conversion to an external force on the task coordinate system, a force control section for calculating a position correction amount on the task coordinate system of the robot, and a joint angle correction amount calculating section for carrying out a conversion to a joint angle correction amount on the joint coordinate system.
    • 一种机器人控制装置,包括:运动转矩计算部,其计算伺服电动机的运动所需的运动转矩指令;扰动转矩估计部,计算扰动转矩;微分位移关系计算部,计算微小位移关系 在机器人的任务坐标系与伺服电动机的联合坐标系之间,对所述任务坐标系进行向外力的转换的外力计算部,对所述任意坐标系的外力进行位置修正量的力控制部 机器人的任务坐标系,以及关节角度校正量计算部,用于对关节坐标系进行关节角修正量的转换。
    • 9. 发明授权
    • System and method for using joint torque feedback to prevent oscillation in a flexible robotic manipulator
    • 使用关节转矩反馈以防止柔性机器人操纵器中的振荡的系统和方法
    • US06646405B2
    • 2003-11-11
    • US09803046
    • 2001-03-12
    • Kenneth G. McConnellChad E. Bouton
    • Kenneth G. McConnellChad E. Bouton
    • G05B1904
    • B25J9/1635G05B2219/39188G05B2219/40599
    • A preferred embodiment of the invention includes a control system (and corresponding method) which monitors and controls both joint torque and arm position during operation of a device such as a manipulator, whereby oscillation is rapidly removed when the system is disturbed by either movement, stopping of the system after completing a movement, by disturbance from external forces, or any other disturbance. Furthermore, the system can achieve rapid motion over a wide manipulator payload range. This is achieved in a preferred embodiment by providing control of torque and thereby allowing control of the arm deflection. In this illustrative arrangement, the joint torque takes on high levels (below the arm's elastic limit), allowing rapid motion without causing arm oscillation. It has been found that the arm can be transformed from a cantilever-type structure to a pin-free-type structure. The invention allows for high joint torque levels with low frequency content, thereby enabling rapid arm movement without induced oscillation. The invention also provides for rapid arm stabilization in the event that the arm comes into contact with external disturbances.
    • 本发明的优选实施例包括控制系统(和相应的方法),其在诸如操纵器的装置的操作期间监视和控制关节扭矩和臂位置,由此当系统被任一运动,停止 完成运动后,受到外力的干扰或任何其他扰动。 此外,系统可以在宽的机械手有效载荷范围内实现快速运动。 这在优选实施例中通过提供扭矩的控制并由此允许控制臂偏转来实现。 在这种说明性的布置中,关节扭矩处于高水平(低于臂的弹性极限),允许快速运动而不引起臂振荡。 已经发现臂可以从悬臂型结构转变为无引脚型结构。 本发明允许具有低频率含量的高关节扭矩水平,从而使得能够在没有感应振荡的情况下快速臂移动。 本发明还提供了在臂与外部干扰接触的情况下的快速臂稳定。