Electromyography acquisition and amplification minisize sensor and training method based on sensor

Abstract

The invention relates to an electromyography acquisition and amplification minisize sensor, belonging to an electromyographic signal acquisition device. The electromyography acquisition and amplification minisize sensor includes an electromyographic signal acquisition electrode, a signal processing module, an analog-to-digital conversion module, a modulation emission module, and a display module, the electromyographic signal acquisition electrode is electrically connected with the signal processing module, the signal processing module includes a radio frequency interference suppression circuit, a three-stage amplification circuit, a full-wave rectification circuit, and a filter circuit, the signal processing module is electrically connected with the analog-to-digital conversion module, the analog-to-digital conversion module is electrically connected with the modulation emission module, a bluetooth receiver is arranged on the display module, and the display module receives the signals emitted by the modulation emission module through the bluetooth receiver. The electromyography acquisition and amplification minisize sensor can perform muscle rehabilitation training through the combination with the games on a display panel, and increases the interest of muscle training; and moreover, the sensor is free of a connecting wire, and the binding caused by the connection of various leads when a subject is tested can be prevented.

Description

technical field [0001] The invention relates to a myoelectric signal acquisition device, in particular to a micro sensor for myoelectric acquisition and amplification. The invention also discloses a muscle rehabilitation training method based on the sensor. Background technique [0002] With the development of neuromedicine, sports and health science, and rehabilitation engineering, people pay more and more attention to the use of surface electromyography signal detection methods to evaluate muscle function status. The clinically used instruments include rehabilitation training equipment and rehabilitation robots, which are usually separated from the sensors by using disposable wet electrodes, and connected by lead wires during collection. There are many skeletal muscles in the human body, and the position of the muscles is complex. The detection requires more accurate collection points and can be measured repeatedly. Wet electrodes need conductive paste or saline to contac...

AI Technical Summary

Problems solved by technology

Wet electrodes need conductive paste or saline to contact the skin to reduce the contact impedance, resulting in motion artifacts easily caused by movement of the electrodes, and deviations in each placement position, and repeated detection at the same collection point is difficult to achieve

In addition, the traditional lead wire connection is very inconvenient in the realization of human-computer interaction. The test subject needs to tie a lot of lead wires, which is not conducive to the large-scale movement of the test subject and is prone to power frequency interference. There are also shortcomings such as large volume, heavy weight, and inconvenient portability of the device. Using the above-mentioned rehabilitation training equipment for rehabilitation training has disadvantages such as low efficiency, boring content, and inaccurate evaluation indicators.

[0003] In response to the adverse effects of wet electrodes, various array electrodes have emerged, but array electrodes not only cannot accurately collect a single muscle, but also can only be worn on the limbs, which is expensive

[0004] Chinese patent CN 102989124 B aims at the problems of low efficiency and boring content in the above-mentioned rehabilitation training, and discloses a portable limb movement rehabilitation training device. The software part of the device includes: a rehabilitation game algorithm module, a rehabilitation game action display module, and a rehabilitation game background Display module, rehabilitation game content display module and score evaluation module

However, the cable sensor in this kind of training device is output as the sensor according to the length variation of the cable being elongated, which requires one end of the sensor to be fixed, and the other end to be connected to the limbs. bondage

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