Intelligent control method of ankle-foot walking aid

Abstract

The invention discloses an intelligent control method of an ankle-foot walking aid, and belongs to the technical field of ankle-foot walking aids. The ankle-foot walking aid comprises a walking mechanism and an electric push rod for driving the walking mechanism, the walking mechanism is provided with a set of plantar pressure sensors, the plantar pressure sensors and the electric push rod are both in signal connection with an external control system, and the intelligent control method of the ankle-foot walking aid comprises the following steps that S1, pressure value-voltage signal conversion is conducted; s2, identifying the motion state of the ankle joint; s3, the telescopic distance delta L of the electric push rod is calculated; s4, the electric push rod drives the ankle-foot walking aid to move. The bionic exoskeleton model fitting the human body curve is established, the plantar pressure sensor is used for receiving plantar pressure signals of the uninjured side limb, the angle needed by walking of the injured side limb is calculated by judging the gait of the patient, and the injured side limb of the patient is driven to move through the length change of the electric push rod so as to assist the patient in completing simple walking.

Description

technical field [0001] The invention belongs to the technical field of ankle-foot walkers, and in particular relates to an intelligent control method of an ankle-foot walker. Background technique [0002] With the continuous development of science and technology, mechanical exoskeletons are more and more used in all walks of life. In the field of assisted walking, exoskeletons are more and more widely used in the lower limb training of people with difficulty in assisting movement because of their advantages such as liberating manpower. [0003] With the continuous growth of age, people are often accompanied by changes in physical functions, such as the decline of physical strength and motor nerve function, and the physical response will not be so sensitive, resulting in sluggish action and physical incoordination. At present, most of the elderly do have muscle weakness, inconvenience in walking, easy to fall, etc., which have obvious adverse effects on the healthy life of t...

AI Technical Summary

Problems solved by technology

At present, most elderly people do suffer from muscle weakness, inconvenient walking, and easy falls, which have obvious adverse effects on the healthy life of the elderly.

[0004] At present, most of the devices used to assist walking are crutches, walking sticks, etc., which have little effect on improving the lower limb exercise capacity of the elderly, such as ankle joint strength, and do not take into account the individual needs of users and the coordination of their own movements.

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