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    • 95. 发明申请
    • Active sensor for micro force measurement
    • 用于微力测量的主动传感器
    • US20060196280A1
    • 2006-09-07
    • US11366014
    • 2006-02-27
    • Ning XiYantao Shen
    • Ning XiYantao Shen
    • G01L1/10
    • G01L1/08
    • An active micro-force sensor is provided for use on a micromanipulation device. The active micro-force sensor includes a cantilever structure having an actuator layer of piezoelectric material and a sensing layer of piezoelectric material bonded together. When an external force is exerted on the sensor, the sensor deforms and an applied force signal is recorded by the sensing layer. The applied force signal is then fed back to the actuating layer of the sensor via a servoed transfer function or servo controller, so that a counteracting deformation can be generated by the bending moment from the servoed actuating layer to quickly balance the deformation caused by the external micro-force. Once balanced, the sensor beam comes back to straight status and the tip will remain in its equilibrium position, thus the sensor stiffness seems to be virtually improved so that the accurate motion control of the sensor tip can be reached, especially, at the same time, the micro-force can also be obtained by solving the counteracting balance voltage applied to the actuating layer.
    • 提供用于显微操作装置的主动微力传感器。 有源微力传感器包括具有压电材料的致动器层和压电材料的感测层结合在一起的悬臂结构。 当外力施加在传感器上时,传感器变形,施加的力信号由传感层记录。 所施加的力信号然后通过伺服传递函数或伺服控制器反馈到传感器的致动层,使得可以通过来自伺服致动层的弯矩产生抵消变形,以快速平衡由外部引起的变形 微力。 一旦平衡,传感器光束返回到直线状态,并且尖端将保持在其平衡位置,因此传感器刚度似乎被实际改善,使得可以达到传感器尖端的精确运动控制,特别是同时 ,也可以通过求解施加到致动层的抵消平衡电压来获得微力。
    • 96. 发明授权
    • Hybrid robot motion task level control system
    • 混合机器人运动任务级控制系统
    • US06456901B1
    • 2002-09-24
    • US09838894
    • 2001-04-20
    • Ning XiJindong Tan
    • Ning XiJindong Tan
    • G06F1900
    • B25J9/1607
    • A hybrid control system is provided for controlling the movement of a robot. The hybrid control system includes a singularity detector; a task level controller that receives a motion plan and determines a first set of control commands which are defined in a task space; and a joint level controller that receives the motion plan and determines a second set of control commands which are defined in a joint space. The singularity detector monitors the movement of the robot and detects robot movement in a region about a singularity configuration. When robot movement occurs outside of this region, the task level controller is operable to issue the first set of control commands to the robot. When the robot movement occurs inside of this region, the joint level controller is operable to issue the second set of control commands to the robot. In this way, the hybrid control system ensures feasible robot motion in the neighborhood of and at kinematic singularity configuration.
    • 提供了一种用于控制机器人运动的混合控制系统。 混合控制系统包括奇点检测器; 任务级别控制器,其接收运动计划并确定在任务空间中定义的第一组控制命令; 以及联合级别控制器,其接收运动计划并确定在联合空间中限定的第二组控制命令。 奇点检测器监视机器人的运动并检测机器人在关于奇异构型的区域中的运动。 当机器人移动发生在该区域之外时,任务级别控制器可操作以向机器人发出第一组控制命令。 当机器人移动发生在该区域内时,联合液位控制器可操作以向机器人发出第二组控制命令。 以这种方式,混合控制系统确保在运动学奇异性配置附近和运动学上的可行机器人运动。
    • 100. 发明申请
    • REAL-TIME 3D SHAPE MEASUREMENT SYSTEM
    • 实时三维形状测量系统
    • US20140002610A1
    • 2014-01-02
    • US14005207
    • 2012-03-14
    • Ning XiJing XuChi Zhang
    • Ning XiJing XuChi Zhang
    • G01B11/25
    • G01B11/2545G01B11/2513
    • Improved method and system for performing three-dimensional shape inspection by: projecting a pattern of light onto an object of interest with a projector, the pattern of light being constituted by a plurality of symbols of different shapes; capturing an image of the illuminated object with an image capturing device; determining the 3D shape of the object from the image data and the projected light pattern with a processor using triangulation. The pattern of light is projected in an omnidirectional plane by means of a first mirrored surface having hyperbolic shape to provide an alternative to traditional monochromatic light based patterns.
    • 改进的方法和系统,用于通过以下方式执行三维形状检查:通过投影仪将光图案投影到感兴趣的对象上,所述图案由多个不同形状的符号构成; 用图像捕获装置拍摄被照明物体的图像; 使用三角测量法利用处理器从图像数据和投影光图案确定对象的3D形状。 光的图案通过具有双曲线形状的第一镜像表面投影在全向平面中,以提供传统的基于单色光的图案的替代。