Portable gait information acquisition device

Abstract

The invention discloses a portable gait information acquisition device and relates to an information acquisition device. The device consists of an electromyographic signal module, a gyroscope module, a laser diastimeter, a plantar pressure sensor, a microprocessor, an SD card module and a display screen, wherein the electromyographic signal module is provided with a differential amplifier, an analog multiplexer, an A/D converter and a digital controller; the input end of the differential amplifier is connected with an electromyographic signal detection electrode sheet, the output end of the differential amplifier is connected with the input end of the multiplexer, the output end of the multiplexer is connected with the input end of the A/D converter, the output end of the A/D converter is connected with the digital controller, the digital controller is connected with a channel selection signal input end of the multiplexer, and the output end of the digital controller is communicated with the first microprocessor and is connected with the first SD card module; the gyroscope module is connected with an I/O port of a second microprocessor, the diastimeter is connected with an A/D conversion interface of the second microprocessor, the sensor is connected with the A/D conversion interface of the second microprocessor, and an output port of the second microprocessor is connected with a second SD card module and the display screen.

Description

technical field [0001] The invention relates to an information collection device, in particular to a portable gait information collection device using an SD card to store data. Background technique [0002] Due to the impact of disease and aging, many people have lost their normal mobility. They all long to get rid of wheelchairs, hoping that they can stand and walk freely like us. As a result, many scientists at home and abroad have devoted themselves to the research of intelligent prosthetics. In the research, the gait analysis of human movement is particularly important. When a person moves under different road conditions, the responses of various parts of the body are different, such as the pressure on the soles of the feet, the angle changes of the thighs and legs, and the degree of muscle contraction. , therefore, making a convenient and practical gait analysis device creates good conditions for data collection. [0003] At present, some people have produced their ow...

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Problems solved by technology

[0003] At present, some people have produced their own set of gait analysis devices one after another. In the Chinese patent CN201220074660, the gait analysis device is used to carry out related experiments to complete the collection of human motion data. However, their data acquisition modules are generally through the host computer and The main control computer is connected or transmitted by wireless communication, which will cause great inconvenience to the experiment, and the transmission process will have a certain impact on the collected data, which greatly reduces the reliability of the experiment

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