As a typical rhythmic movement, human being＇s rhythmic gait movement can be generated by a central pattern generator （CPG） located in a spinal cord by self- oscillation. Some kinds of gait movements are caused by g...As a typical rhythmic movement, human being＇s rhythmic gait movement can be generated by a central pattern generator （CPG） located in a spinal cord by self- oscillation. Some kinds of gait movements are caused by gait frequency and amplitude variances. As an important property of human being＇s motion vision, the attention selection mechanism plays a vital part in the regulation of gait movement. In this paper, the CPG model is amended under the condition of attention selection on the theoretical basis of Matsuoka neural oscillators. Regulation of attention selection signal for the CPG model parameters and structure is studied, which consequentially causes the frequency and amplitude changes of gait movement output. Further, the control strategy of the CPG model gait movement under the condition of attention selection is discussed, showing that the attention selection model can regulate the output model of CPG gait movement in three different ways. The realization of regulation on the gait movement frequency and amplitude shows a variety of regulation on the CPG gait movement made by attention selection and enriches the controllability of CPG gait movement, which demonstrates potential influence in engineering applications.展开更多
助行外骨骼机器人是一种帮助老年人和下肢不便的残疾人扩展行走能力的助力装置.提出一种基于数字信号处理(digital signal processing,DSP)系统的步态控制方法,首先,将连续步态数据离散处理后的结果作为DSP系统的输入,通过执行机构实现...助行外骨骼机器人是一种帮助老年人和下肢不便的残疾人扩展行走能力的助力装置.提出一种基于数字信号处理(digital signal processing,DSP)系统的步态控制方法,首先,将连续步态数据离散处理后的结果作为DSP系统的输入,通过执行机构实现机器人的步态行走;然后,在每个步态周期结束之后,通过编码器对步态角度实时采样;最后,控制系统对反馈数据处理后实现步态误差的周期补偿.通过样机试验验证上述方法,得到较好的结果.展开更多
基金supported by the National Natural Science Foundation of China(Nos.11232005 and11472104)the Doctoral Fund of Ministry of Education of China(No.20120074110020)
文摘As a typical rhythmic movement, human being＇s rhythmic gait movement can be generated by a central pattern generator （CPG） located in a spinal cord by self- oscillation. Some kinds of gait movements are caused by gait frequency and amplitude variances. As an important property of human being＇s motion vision, the attention selection mechanism plays a vital part in the regulation of gait movement. In this paper, the CPG model is amended under the condition of attention selection on the theoretical basis of Matsuoka neural oscillators. Regulation of attention selection signal for the CPG model parameters and structure is studied, which consequentially causes the frequency and amplitude changes of gait movement output. Further, the control strategy of the CPG model gait movement under the condition of attention selection is discussed, showing that the attention selection model can regulate the output model of CPG gait movement in three different ways. The realization of regulation on the gait movement frequency and amplitude shows a variety of regulation on the CPG gait movement made by attention selection and enriches the controllability of CPG gait movement, which demonstrates potential influence in engineering applications.
文摘助行外骨骼机器人是一种帮助老年人和下肢不便的残疾人扩展行走能力的助力装置.提出一种基于数字信号处理(digital signal processing,DSP)系统的步态控制方法,首先,将连续步态数据离散处理后的结果作为DSP系统的输入,通过执行机构实现机器人的步态行走;然后,在每个步态周期结束之后,通过编码器对步态角度实时采样;最后,控制系统对反馈数据处理后实现步态误差的周期补偿.通过样机试验验证上述方法,得到较好的结果.
