System and method for tensioning a robotically actuated tendon
    1.
    发明授权
    System and method for tensioning a robotically actuated tendon 有权
    用于张紧机器人致动肌腱的系统和方法

    公开(公告)号:US08618762B2

    公开(公告)日:2013-12-31

    申请号:US13014901

    申请日:2011-01-27

    IPC分类号: B25J15/02 G05B19/04

    摘要: A tendon tensioning system includes a tendon having a proximal end and a distal end, an actuator, and a motor controller. The actuator may include a drive screw and a motor, and may be coupled with the proximal end of the tendon and configured to apply a tension through the tendon in response to an electrical current. The motor controller may be electrically coupled with the actuator, and configured to provide an electrical current having a first amplitude to the actuator until a stall tension is achieved through the tendon; provide a pulse current to the actuator following the achievement of the stall tension, where the amplitude of the pulse current is greater than the first amplitude, and return the motor to a steady state holding current following the conclusion of the pulse current.

    摘要翻译: 腱张紧系统包括具有近端和远端的腱,致动器和马达控制器。 致动器可以包括驱动螺钉和马达,并且可以与腱的近端联接并且被配置为响应于电流而通过腱施加张力。 电动机控制器可以与致动器电耦合,并且被配置为向致动器提供具有第一幅度的电流,直到通过腱实现失速张力; 在实现失速张力之后向致动器提供脉冲电流,其中脉冲电流的幅度大于第一幅度,并且在脉冲电流结束之后将电动机返回到保持电流的稳态。

    ROBUST OPERATION OF TENDON-DRIVEN ROBOT FINGERS USING FORCE AND POSITION-BASED CONTROL LAWS
    3.
    发明申请
    ROBUST OPERATION OF TENDON-DRIVEN ROBOT FINGERS USING FORCE AND POSITION-BASED CONTROL LAWS 有权
    使用强力和基于位置的控制法强力运转机器人手指

    公开(公告)号:US20120109379A1

    公开(公告)日:2012-05-03

    申请号:US12916803

    申请日:2010-11-01

    IPC分类号: G05B15/00

    CPC分类号: B25J15/0009 B25J9/1045

    摘要: A robotic system includes a tendon-driven finger and a control system. The system controls the finger via a force-based control law when a tension sensor is available, and via a position-based control law when a sensor is not available. Multiple tendons may each have a corresponding sensor. The system selectively injects a compliance value into the position-based control law when only some sensors are available. A control system includes a host machine and a non-transitory computer-readable medium having a control process, which is executed by the host machine to control the finger via the force- or position-based control law. A method for controlling the finger includes determining the availability of a tension sensor(s), and selectively controlling the finger, using the control system, via the force or position-based control law. The position control law allows the control system to resist disturbances while nominally maintaining the initial state of internal tendon tensions.

    摘要翻译: 机器人系统包括腱驱动的手指和控制系统。 当张力传感器可用时,系统通过基于力的控制律控制手指,并且当传感器不可用时,通过基于位置的控制规律来控制手指。 多个腱可以各自具有相应的传感器。 当只有一些传感器可用时,系统选择性地将符合值注入基于位置的控制律。 控制系统包括主机和具有控制过程的非暂时计算机可读介质,该控制过程由主机通过基于力或基于位置的控制定律来执行以控制手指。 用于控制手指的方法包括确定张力传感器的可用性,以及使用控制系统通过力或基于位置的控制律选择性地控制手指。 位置控制法允许控制系统抵抗干扰,同时名义上保持内部肌腱张力的初始状态。

    Torque control of underactuated tendon-driven robotic fingers
    4.
    发明授权
    Torque control of underactuated tendon-driven robotic fingers 有权
    欠肌腱驱动机器人手指的扭矩控制

    公开(公告)号:US08565918B2

    公开(公告)日:2013-10-22

    申请号:US12720727

    申请日:2010-03-10

    IPC分类号: G06F19/00

    CPC分类号: H01R13/17 H01R13/052

    摘要: A robotic system includes a robot having a total number of degrees of freedom (DOF) equal to at least n, an underactuated tendon-driven finger driven by n tendons and n DOF, the finger having at least two joints, being characterized by an asymmetrical joint radius in one embodiment. A controller is in communication with the robot, and controls actuation of the tendon-driven finger using force control. Operating the finger with force control on the tendons, rather than position control, eliminates the unconstrained slack-space that would have otherwise existed. The controller may utilize the asymmetrical joint radii to independently command joint torques. A method of controlling the finger includes commanding either independent or parameterized joint torques to the controller to actuate the fingers via force control on the tendons.

    摘要翻译: 机器人系统包括具有等于至少n的总自由度(DOF)等于至少n的机器人,由n个腱和n个DOF驱动的欠驱动的腱驱动的手指,所述手指具有至少两个关节,其特征在于不对称的 一个实施例中的接头半径。 控制器与机器人通信,并且使用力控制来控制腱驱动的手指的致动。 通过对肌腱的力控制操作手指,而不是位置控制,消除了否则存在的无约束的松弛空间。 控制器可以利用非对称关节半径来独立地命令关节扭矩。 控制手指的方法包括将独立或参数化的关节扭矩指令给控制器以通过对肌腱上的力控制来致动手指。

    SYSTEM AND METHOD FOR TENSIONING A ROBOTICALLY ACTUATED TENDON
    5.
    发明申请
    SYSTEM AND METHOD FOR TENSIONING A ROBOTICALLY ACTUATED TENDON 有权
    用于拉伸机动式拉杆的系统和方法

    公开(公告)号:US20120194120A1

    公开(公告)日:2012-08-02

    申请号:US13014901

    申请日:2011-01-27

    IPC分类号: G05B5/01

    摘要: A tendon tensioning system includes a tendon having a proximal end and a distal end, an actuator, and a motor controller. The actuator may include a drive screw and a motor, and may be coupled with the proximal end of the tendon and configured to apply a tension through the tendon in response to an electrical current. The motor controller may be electrically coupled with the actuator, and configured to provide an electrical current having a first amplitude to the actuator until a stall tension is achieved through the tendon; provide a pulse current to the actuator following the achievement of the stall tension, where the amplitude of the pulse current is greater than the first amplitude, and return the motor to a steady state holding current following the conclusion of the pulse current.

    摘要翻译: 腱张紧系统包括具有近端和远端的腱,致动器和马达控制器。 致动器可以包括驱动螺钉和马达,并且可以与腱的近端联接并且被配置为响应于电流而通过腱施加张力。 电动机控制器可以与致动器电耦合,并且被配置为向致动器提供具有第一幅度的电流,直到通过腱实现失速张力; 在实现失速张力之后向致动器提供脉冲电流,其中脉冲电流的幅度大于第一幅度,并且在脉冲电流结束之后将电动机返回到保持电流的稳态。

    TORQUE CONTROL OF UNDERACTUATED TENDON-DRIVEN ROBOTIC FINGERS
    7.
    发明申请
    TORQUE CONTROL OF UNDERACTUATED TENDON-DRIVEN ROBOTIC FINGERS 有权
    受力驱动的机动手指的扭矩控制

    公开(公告)号:US20100280662A1

    公开(公告)日:2010-11-04

    申请号:US12720727

    申请日:2010-03-10

    IPC分类号: G05B15/00

    CPC分类号: H01R13/17 H01R13/052

    摘要: A robotic system includes a robot having a total number of degrees of freedom (DOF) equal to at least n, an underactuated tendon-driven finger driven by n tendons and n DOF, the finger having at least two joints, being characterized by an asymmetrical joint radius in one embodiment. A controller is in communication with the robot, and controls actuation of the tendon-driven finger using force control. Operating the finger with force control on the tendons, rather than position control, eliminates the unconstrained slack-space that would have otherwise existed. The controller may utilize the asymmetrical joint radii to independently command joint torques. A method of controlling the finger includes commanding either independent or parameterized joint torques to the controller to actuate the fingers via force control on the tendons.

    摘要翻译: 机器人系统包括具有等于至少n的总自由度(DOF)等于至少n的机器人,由n个腱和n个DOF驱动的欠驱动的腱驱动的手指,所述手指具有至少两个关节,其特征在于不对称的 一个实施例中的接头半径。 控制器与机器人通信,并且使用力控制来控制腱驱动的手指的致动。 通过对肌腱的力控制操作手指,而不是位置控制,消除了否则存在的无约束的松弛空间。 控制器可以利用非对称关节半径来独立地命令关节扭矩。 控制手指的方法包括将独立或参数化的关节扭矩指令给控制器以通过对肌腱上的力控制来致动手指。

    Multiple priority operational space impedance control
    8.
    发明授权
    Multiple priority operational space impedance control 有权
    多重优先级操作空间阻抗控制

    公开(公告)号:US08170718B2

    公开(公告)日:2012-05-01

    申请号:US12338697

    申请日:2008-12-18

    IPC分类号: G06F19/00

    摘要: A system and method for providing multiple priority impedance control for a robot manipulator where impedance laws are realized simultaneously and with a given order of priority. The method includes a control scheme for realizing a Cartesian space impedance objective as a first priority while also realizing a joint space impedance objective as a second priority. The method also includes a control scheme for realizing two Cartesian space impedance objectives with different levels of priority. The method includes instances of the control schemes that use feedback from force sensors mounted at an end-effector and other instances of the control schemes that do not use this feedback.

    摘要翻译: 一种用于为机器人操纵器提供多重优先级阻抗控制的系统和方法,其中阻抗定律同时实现并且具有给定的优先顺序。 该方法包括用于实现笛卡尔空间阻抗目标作为第一优先级的控制方案,同时还实现作为第二优先级的联合空间阻抗目标。 该方法还包括用于实现具有不同优先级的两个笛卡尔空间阻抗目标的控制方案。 该方法包括使用安装在末端执行器处的力传感器的反馈和不使用该反馈的控制方案的其他实例的控制方案的实例。

    METHOD AND APPARATUS FOR AUTOMATIC CONTROL OF A HUMANOID ROBOT
    9.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATIC CONTROL OF A HUMANOID ROBOT 有权
    人类机器人自动控制的方法和装置

    公开(公告)号:US20100280663A1

    公开(公告)日:2010-11-04

    申请号:US12624445

    申请日:2009-11-24

    IPC分类号: B25J13/00

    CPC分类号: H01R13/17 H01R13/052

    摘要: A robotic system includes a humanoid robot having a plurality of joints adapted for force control with respect to an object acted upon by the robot, a graphical user interface (GUI) for receiving an input signal from a user, and a controller. The GUI provides the user with intuitive programming access to the controller. The controller controls the joints using an impedance-based control framework, which provides object level, end-effector level, and/or joint space-level control of the robot in response to the input signal. A method for controlling the robotic system includes receiving the input signal via the GUI, e.g., a desired force, and then processing the input signal using a host machine to control the joints via an impedance-based control framework. The framework provides object level, end-effector level, and/or joint space-level control of the robot, and allows for functional-based GUI to simplify implementation of a myriad of operating modes.

    摘要翻译: 机器人系统包括具有适于对由机器人作用的物体进行力控制的多个关节的人形机器人,用于从用户接收输入信号的图形用户界面(GUI)和控制器。 GUI为用户提供对控制器的直观编程访问。 控制器使用基于阻抗的控制框架控制关节,该框架响应于输入信号提供机器人的物体水平,末端执行器水平和/或联合空间级控制。 用于控制机器人系统的方法包括经由GUI接收输入信号,例如期望的力,然后使用主机处理输入信号,以经由基于阻抗的控制框架来控制关节。 该框架提供了机器人的对象级别,末端执行器级别和/或联合空间级别控制,并允许基于功能的GUI来简化无数操作模式的实现。

    Concurrent path planning with one or more humanoid robots
    10.
    发明授权
    Concurrent path planning with one or more humanoid robots 有权
    一个或多个人形机器人的并行路径规划

    公开(公告)号:US08731714B2

    公开(公告)日:2014-05-20

    申请号:US12887972

    申请日:2010-09-22

    IPC分类号: G06F19/00

    CPC分类号: B25J9/1682 B25J9/1661

    摘要: A robotic system includes a controller and one or more robots each having a plurality of robotic joints. Each of the robotic joints is independently controllable to thereby execute a cooperative work task having at least one task execution fork, leading to multiple independent subtasks. The controller coordinates motion of the robot(s) during execution of the cooperative work task. The controller groups the robotic joints into task-specific robotic subsystems, and synchronizes motion of different subsystems during execution of the various subtasks of the cooperative work task. A method for executing the cooperative work task using the robotic system includes automatically grouping the robotic joints into task-specific subsystems, and assigning subtasks of the cooperative work task to the subsystems upon reaching a task execution fork. The method further includes coordinating execution of the subtasks after reaching the task execution fork.

    摘要翻译: 机器人系统包括控制器和一个或多个机器人,每个机器人具有多个机器人接头。 每个机器人关节是独立可控的,从而执行具有至少一个任务执行叉的协作工作任务,导致多个独立子任务。 控制器在执行协作工作任务期间协调机器人的运动。 控制器将机器人接头组合到任务特定的机器人子系统中,并且在执行协作工作任务的各个子任务期间同步不同子系统的运动。 使用机器人系统执行协同工作任务的方法包括:将机器人接头自动分组为任务专用子系统,以及在达到任务执行叉时将协同工作任务的子任务分配给子系统。 该方法还包括在到达任务执行叉之后协调子任务的执行。