基于模糊逻辑的踝足矫形器设计

Design of ankle⁃foot orthosis based on fuzzy logic

中风、脑瘫患者因对下肢运动控制存在缺陷导致步态异常。设计一款气动踝足矫形器来预防足下垂等行动障碍。将踝关节位置和足底压力作为输入信号,采用模糊逻辑控制器(FLC)控制输出电压。监测和记录步行测试实验中控制器的输入和输出,结果表明基于模糊逻辑的踝足矫形器能在行走时提供辅助,有助于防止足下垂。

Patients with stroke and cerebral palsy have abnormal gait due to deficiencies in motor control of the lower extremities,and a pneumatic ankle­foot orthosis is designed to prevent mobility disorders such as foot drop.Based on the ankle joint position and plantar pressure as input signals,a fuzzy logic controller(FLC)was used to control the output voltage.The inputs and outputs of the controller were monitored and recorded during walking test experiments,and the results showed that the fuzzy logic­based ankle­foot orthosis can provide assistance during walking and help prevent foot drop.