9 research outputs found

    一种穿戴式上肢仿生柔性外骨骼机器人及其助力方法

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    本发明涉及一种穿戴式上肢仿生柔性外骨骼机器人及其助力方法,在人体每个骨骼肌两个端点对应的皮肤处设置结点对,结点对之间通过拉力线连接;控制系统包括控制器、电机驱动器、电机和电源,控制器通过电机驱动器连接电机,发送控制命令给电机,通过电机驱动器驱动电机工作,电源为控制系统供电;拉力线缠绕在电机输出端的绕线轮上,对结点对进行拉力输出。本发明采用柔性外骨骼技术,基于仿生学和运动生物力学的原理,将人体运动的骨骼、肌肉模型化,基于人体自身骨骼结构,利用拉力线模拟骨骼肌、柔性绑带模拟肌腱,从而使装置结构具有人体相似的运动构型,驱动方式符合人体驱动原理,使佩戴者运动符合人体正常模式,同时结构轻便,可日常穿戴

    一种可穿戴式腕部扭摆助力康复装置

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    本发明涉及医疗康复器械,具体地说是一种可穿戴式腕部扭摆助力康复装置,包括腕部掌屈/背屈运动组件、前臂内旋/外旋运动组件、前臂固定组件、基座及套索驱动单元组件;所述的腕部掌屈/背屈运动组件与所述的前臂内旋/外旋运动组件连接,所述的前臂内旋/外旋运动组件与所述的前臂固定组件连接,所述的基座与前臂内旋/外旋运动组件连接,所述的套索驱动单元组件为可穿戴式腕部扭摆助力康复装置提供驱动力。本发明可实现多模式下腕部及前臂复合动作助力与康复运动,主要用于中风、偏瘫患者腕部及前臂的日常复合动作助力与康复训练,利于重塑脑功能,达到最佳助力/康复效果

    一种肩胛带仿生助力柔性外骨骼机构

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    本发明涉及一种肩胛带仿生助力柔性外骨骼机构,伸缩执行臂与伸缩支撑臂相对设置,并通过两组伸缩摆动臂组件相连,形成可伸缩的平行四边形机构;两组中的伸缩摆动臂A和伸缩摆动臂B中的任一个的一端通过前伸/后缩模块化旋转装置与伸缩执行臂或伸缩支撑臂转动连接,其余的伸缩摆动臂的一端与伸缩执行臂或伸缩支撑臂动连接;上提/下落支撑臂通过上提/下落模块化旋转装置与伸缩支撑臂相连;前伸/后缩模块化旋转装置及上提/下落模块化旋转装置均与各自的套索驱动单元连接,由各自的套索驱动单元提供前伸/后缩以及上提/下落的驱动力矩。本发明解决了偏瘫患者肩胛带康复训练问题,同时有效避免人机肩部运动奇异位形,提高人机运动相容性

    一种柔性外骨骼手套装置

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    本发明涉及柔性机械手领域,具体地说是一种柔性外骨骼手套装置,包括柔性外骨骼手套和驱动装置,其中柔性外骨骼手套的手背侧设有柔性驱动连件和手背侧驱动线,柔性驱动连件上侧与除大拇指外的各个手指末端固连,下端与手背侧驱动线相连,在柔性外骨骼手套的手心侧,在食指和中指上均设有握驱动线和捏驱动线,其中握驱动线沿着手指延伸并且末端与所述手指末端相连,捏驱动线沿着手指延伸至任一关节处后绕至所述手指背侧并与该手指背侧的柔性驱动连件相连,在驱动装置内设有多个驱动机构,且所述握驱动线、捏驱动线和手背侧驱动线分别通过不同的驱动机构驱动收放线。本发明帮助手部无活动能力患者完成日常抓取活动,携带方便,且不会对患者手部造成伤害

    A Control Method of Grasping Force for Soft Exoskeleton Hand

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    为了辅助丧失手部运动功能的患者完成日常生活用品的抓取,研制了一种基于线张力反馈的柔性外骨骼机器人系统,其可实现手指指尖抓取力的稳定控制.首先介绍了柔性外骨骼手套的结构设计以及控制策略.然后建立了手指静态力学模型,通过套索入口侧线张力计算得到手指指尖与物体之间的接触力.针对套索传动过程中存在的摩擦损耗问题,通过物理方法将套索累计弯曲角度的变化范围限制在0&deg;~90&deg;范围内,并采用中值补偿的方法对摩擦损耗进行补偿.最后通过柔性外骨骼手套抓取力控制实验验证了手指静态力学模型以及摩擦补偿方法的有效性,手指指尖接触力的误差最大范围为&plusmn;1 N.为了验证柔性外骨骼手套的实际使用效果,在丧失手部运动功能的患者身上进行了柔性外骨骼手套的抓取实验.实验结果表明,柔性外骨骼手套可以辅助患者完成对日常生活用品的可靠抓取.</p

    JUNO Sensitivity on Proton Decay pνˉK+p\to \bar\nu K^+ Searches

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    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in pνˉK+p\to \bar\nu K^+ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via pνˉK+p\to \bar\nu K^+ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is 9.6×10339.6 \times 10^{33} years, competitive with the current best limits on the proton lifetime in this channel

    JUNO sensitivity on proton decay pνK+p → νK^{+} searches

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    JUNO sensitivity on proton decay p → ν K + searches*

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    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the pνˉK+ p\to \bar{\nu} K^+ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via pνˉK+ p\to \bar{\nu} K^+ is 36.9% ± 4.9% with a background level of 0.2±0.05(syst)±0.2\pm 0.05({\rm syst})\pm 0.2(stat) 0.2({\rm stat}) events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 9.6 \times 10^{33} years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies
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