Real-time detecting method for knee joint angles and device

Abstract

The invention discloses a real-time detecting method for knee joint angels and a device. The method includes that an ultrasonic detecting device is mounted on the inner side of the front of a walking aid robot platform, multiple channels of ultrasonic range-finding sensors detect distance data among thigh detected surfaces and shank detected surfaces of lower limbs on both sides and the detecting platform, and information of bent angels of knee joints in a walking process of a testee is obtained. The device is an ultrasonic detecting system erected on the basis of the walking aid robot platform and comprises the multiple channels of ultrasonic range-finding sensors, a single chip microcomputer data acquisition and transmission device, a data processing unit for a portable computer and an internal memory, and a knee joint bent angle calculating and analyzing unit. The detecting device is mounted on a walking aid robot, devices are not mounted on the body of the testee, the testee is not limited in a walking process, the information of the bent angels of the knee joints can be obtained, and the detecting system is convenient in installation, simple in structure and low in cost.

Description

technical field [0001] The invention relates to a walking aid rehabilitation training method and device, in particular to a real-time detection method and device for knee joint angles. The present invention is based on the multi-channel ultrasonic ranging sensor installed on the walker robot platform, and detects the distance data between the thigh quilt side and calf quilt side of one side of the lower limb of a person walking and the detection platform, and obtains the distance data by processing and calculating the detected distance data. Data on changes in the angle of knee flexion during walking. Background technique [0002] With the gradual increase of the aging population in China, there are a large number of patients with lower limb motor dysfunction in the elderly population. These patients need to be trained to restore limb motor function. Correct and scientific lower limb rehabilitation training is very important for the recovery of such patients. The motor func...

AI Technical Summary

Problems solved by technology

[0010] These sensor-based knee joint angle measurement devices provided by the above technical solutions can accurately measure the knee joint angle, but all need to fix the detection device at different positions of the lower limbs of the subject, and include peripheral circuits for the detection sensor And power supply and other equipment, each test requires professionals to install, which has more or less restrictions and data interference on the knee joint angle of the test subject during walking

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