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    • 33. 发明授权
    • Configuration control of seven degree of freedom arms
    • 配置控制七自由度武器
    • US5430643A
    • 1995-07-04
    • US849629
    • 1992-03-11
    • Homayoun Seraji
    • Homayoun Seraji
    • B25J9/16B25J9/18G05B13/00
    • B25J9/1643G05B2219/33169G05B2219/34403G05B2219/39062G05B2219/39081G05B2219/39082G05B2219/39414G05B2219/39422G05B2219/40317G05B2219/40342G05B2219/40345G05B2219/40362G05B2219/40371G05B2219/40379
    • A seven-degree-of-freedom robot arm with a six-degree-of-freedom end effector is controlled by a processor employing a 6-by-7 Jacobian matrix for defining location and orientation of the end effector in terms of the rotation angles of the joints, a 1 (or more)-by-7 Jacobian matrix for defining 1 (or more) user-specified kinematic functions constraining location or movement of selected portions of the arm in terms of the joint angles, the processor combining the two Jacobian matrices to produce an augmented 7 (or more)-by-7 Jacobian matrix, the processor effecting control by computing in accordance with forward kinematics from the augmented 7-by-7 Jacobian matrix and from the seven joint angles of the arm a set of seven desired joint angles for transmittal to the joint servo loops of the arms. One of the kinematic functions constrains the orientation of the elbow plane of the arm. Another one of the kinematic functions minimizing a sum of gravitational torques on the joints. Still another one of the kinematic functions constrains the location of the arm to perform collision avoidance. Generically, one of the kinematic functions minimizes a sum of selected mechanical parameters of at least some of the joints associated with weighting coefficients which may be changed during arm movement. The mechanical parameters may be velocity errors or position errors or gravity torques associated with individual joints.
    • 具有六自由度端部执行器的七自由度机器人手臂由采用6×7雅可比矩阵的处理器控制,用于根据旋转角度来定义端部执行器的位置和方位 的关节,1(或更多)-7个雅可比矩阵,用于定义1(或更多)用户指定的运动学函数,约束臂的选定部分在关节角度的位置或移动,处理器将两个 雅可比矩阵以产生增强的7(或更多)-78个雅可比矩阵,该处理器通过根据增强的7×7雅可比矩阵的正向运动学和通过臂的七个关节角计算来实现控制 用于传递到臂的联合伺服回路的七个期望的关节角度。 运动功能之一限制了手臂肘平面的方位。 另一个运动学函数使关节上的重力转矩总和最小化。 另一个运动功能限制了臂的位置来执行防撞。 通常地,运动学函数之一使得与在臂运动期间可能改变的加权系数相关联的至少一些关节的所选择的机械参数的总和最小化。 机械参数可能是与单个接头相关的速度误差或位置误差或重力转矩。
    • 37. 发明申请
    • Method And Apparatus For Controlling A Robot
    • 用于控制机器人的方法和装置
    • US20160016314A1
    • 2016-01-21
    • US14802418
    • 2015-07-17
    • KUKA Roboter GmbH
    • Gerhard HietmannMarc-Walter UeberleChristian HartmannRichard SchwarzRichard Rudolf
    • B25J9/16
    • B25J9/1674B25J9/1676G05B2219/36468G05B2219/40371G05B2219/49141Y10S901/09
    • A method for controlling a robot in at least one pose of the robot wherein the robot can be operated in either a first mode of operation or a second mode of operation. In the second mode of operation the robot can be moved by manually applying a guiding force to the robot. The method includes determining a distance of a state variable of the robot from a first limit and then triggering a safety response when the distance satisfies a first condition and the robot is operating in the first mode of operation. When the robot is operating in the second mode of operation and the distance satisfies the first condition, the method includes not triggering the safety response, and motorically applying a positioning force to the robot in dependence on the determined distance so that the distance can be reduced when the robot is unobstructed.
    • 一种用于在所述机器人的至少一个姿态中控制机器人的方法,其中所述机器人可以在第一操作模式或第二操作模式中操作。 在第二操作模式中,可以通过手动地向机器人施加引导力来移动机器人。 该方法包括确定机器人的状态变量与第一极限的距离,然后当距离满足第一条件并且机器人在第一操作模式下操作时触发安全响应。 当机器人在第二操作模式下操作并且距离满足第一条件时,该方法不包括触发安全响应,并且根据所确定的距离动力地向机器人施加定位力,从而可以减小距离 当机器人畅通无阻时。