Ultrasonic gait detection method

A gait detection and ultrasonic technology, applied in the directions of diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of jitter interference and low cost, and achieve the effect of eliminating echo interference, improving psychological quality, and increasing confidence in rehabilitation.

Active Publication Date: 2014-04-30
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

[0007] In the published Chinese patent application No. 200910154024.1, it is proposed to install a two-axis acceleration sensor in front of the waist of the human body to measure the gait speed of the human body. This gait detection method is simple and low in cost, but the sensor is installed on the subject. On the body, the installation of the sensor position requires multiple adjustments, and the vibration of the sensor carried on the subject's body during the detection process will cause a lot of interference

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Embodiment Construction

[0053] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0054] One-step detection device

[0055] like figure 1 As shown, the ultrasonic detection system is installed in front of the walking robot platform, detects the gait data of the person walking at the same height as the ultrasonic wave, and then performs the corresponding proportional transformation on the detected data to calculate the step length value.

[0056] The detection principle of ultrasonic receiving and transmitting module is as follows figure 2 , By triggering a 20-microsecond high-level signal on the ultrasonic control terminal, the module modulates the signal, generates a 40-kHz oscillating pulse signal, and transmits ultrasonic waves. When encountering obstacles, the ultrasonic signal returns, and the signal is transmitted after gain amplification It is timed by the return terminal timer, and then sent...

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Abstract

The invention discloses an ultrasonic gait detection device and method. The method is characterized by comprising the following steps: installing an ultrasonic detection system in front of a walking aid robot platform, respectively detecting the distance between the left and right legs of the testee and the ultrasonic detection platform by multiple ultrasonic sensors, extracting gait information in the walking process of the human body, and analyzing and calculating gait parameters, including average step length, average pace, step frequency, instantaneous speed and the like. The device comprises an ultrasonic transceiver, a data acquisition and transmission device, a gait data processing unit and a gait characteristic parameter calculation and analysis unit. The detection device is installed on the walking aid robot platform, and no device is installed on the testee body, so that the ultrasonic gait detection device can detect the gait of the testee without any restriction, thereby reducing the mental load of the testee in the gait detection process; the extracted gait characteristic parameters are more accurate; and the detection system has the advantages of simple structure and low cost, and is convenient to use and install.

Description

technical field [0001] The invention relates to a walking aid rehabilitation training device and method, in particular to a multi-channel ultrasonic sensor installed on a walking aid robot platform to detect the distance between the legs of a person and the ultrasonic detection platform when walking, and to detect the distance between the detected distance data. The ultrasonic gait detection device and method are processed and analyzed to extract the gait parameters of the human body when walking, including the average stride length, the average stride speed, and the stride frequency. Background technique [0002] At the beginning of November 2011, the world's total population has reached 7 billion. According to the latest census report released by China, the country's total population is 134 million, and the population aged 60 and above is 177 million, accounting for about 13% of the total population. %. The proportion of the population aged 60 and above increased by 2.93 ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11
Inventor 孙柏青沈金虎张秋豪杨俊友赵前程刘晓刚
Owner SHENYANG POLYTECHNIC UNIV
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