An application of scissored-pair control moment gyroscopes in a design of wearable balance assistance device for the elderly.
An application of scissored-pair control moment gyroscopes in a design of wearable balance assistance device for the elderly.
复制标题
剪刀偶控制力矩陀螺仪在老年人穿戴式平衡辅助装置设计中的应用
DOI：
10.1016/j.jbiomech.2019.03.015
复制
发表时间：
2019
影响因子：
2.4
通讯作者：
Pairat Tangpornprasert
中科院分区：
文献类型：
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作者：
Parineak Romtrairat;C. Virulsri;Pairat Tangpornprasert
平衡控制能力受损和功能活动能力下降会增加老年人跌倒的风险。与年轻人相比，老年人在站立时表现出更多的姿势摇摆。当重心移动到稳定极限之外时，就会发生摇摆坠落。为了减少过度摇摆带来的跌倒风险，本研究设计了一种老年人可穿戴平衡辅助装置。选择剪刀对控制力矩陀螺仪作为力矩执行器。采用双轴倾斜传感器检测佩戴者身体的倾斜角度。根据检测到的倾斜角计算出摆动方向。设计的装置重量为8.2 kg，高32 cm × ，宽40 cm × ，深22 cm。使用站立人体的多节段模型来研究该装置的平衡恢复性能。仿真结果表明，在适当的初始角度下，在任何方向上都能成功实现平衡恢复。建立了有效初始角与检测到的倾角之间的关系。激活装置提供的稳定性能够限制不稳定用户的摇摆边界。所设计的装置有望成为老年人的平衡辅助装置。
Impaired balance control ability and degraded functional mobility increases the risk of falling in elderly people. The elderly show more postural sway when standing compared with young people. A sway fall occurs when the center of gravity moves outside the limit of stability. In order to reduce the fall risk from the excessive sway, this study presents the design of wearable balance assistance device for the elderly. Scissored-pair control moment gyroscopes were selected as a torque actuator. A two-axis inclination sensor was used to detect the inclined angle of the wearer’s body. The direction of sway was calculated from the detected inclined angle. The designed device weighs 8.2 kg with a height of 32 cm × width of 40 cm × depth of 22 cm. A multi-segment model of a standing human was used to investigate the device’s performance for balance recovery. According to the simulations, balance recovery in any direction was successfully accomplished with the appropriate initial angle. The relationship between the effective initial angle and detected inclined angle was subsequently established. The stability provided by activation of the device was able to limit the unstable user’s sway boundary. The designed device shows promise for use as a balance assistance device for the elderly.
影响因子：
2.4
作者：
Silder, Amy;Whittington, Ben;Thelen, Darryl G.
通讯作者：
Thelen, Darryl G.