Myoelectricity acquisition system and myoelectricity acquisition unit for human body surface wireless transmission

Abstract

The invention belongs to the field of body surface myoelectricity acquisition, and particularly relates to a human body surface wireless transmission myoelectricity acquisition system and a myoelectricity acquisition unit, which comprise a body surface electrode, a plurality of myoelectricity acquisition units, a data processing unit and a display terminal, wherein the myoelectricity acquisition unit is connected with a body surface electrode solid line, the myoelectricity acquisition unit is in wireless connection with the data processing unit through wifi, and the data processing unit is connected with the display terminal through a USB line. The method is convenient in use steps, and does not need to connect many entity lines. And compared with an entity line, the use distance is increased. Data dual backup is performed in the myoelectricity acquisition unit and the data processing unit, original data are stored, and data loss caused by unforeseen circumstances can be avoided. And the acquisition channels can be flexibly selected as required.

Description

technical field [0001] The invention belongs to the field of body surface myoelectricity collection, in particular to a body surface myoelectricity collection system and a myoelectricity collection unit for wireless transmission. Background technique [0002] The multi-channel wireless transmission surface electromyography acquisition system (sEMG) is to paste the surface electrode on the skin surface where the active muscle is located to collect the bioelectrical signal of the muscle activity, and then amplify and display the time series signal of the recorded voltage. real-time, local and functional. As a detection means and method that can objectively reflect the bioelectrical activity of the neuromuscular system, sEMG is characterized by non-invasive, multi-target detection and the consistency of signal characteristic changes with internal physiological and pathological changes. In terms of neuromuscular function evaluation, sEMG can accurately describe local muscle act...

AI Technical Summary

Problems solved by technology

[0003] Existing problems: For data transmission, whether it is wired transmission or wireless transmission, there are data packet loss and errors. The general solution is to deal with data errors and loss problems through data verification code judgment and retransmission mechanism

However, the point that contradicts this processing method is that data verification and retransmission will reduce the data transmission rate, especially in some application scenarios that require high real-time performance.

[0004] In addition, the current EMG acquisition unit is extremely expensive, and the safety of the acquisition unit when it is used and placed is an issue that needs to be considered. These issues include the following:

[0005] 1. The problem of waterproof and dustproof of the components in the housing during charging and placement

[0006] 2. Waterproof, dustproof and short-circuit proof of battery charging port

[0007] 3. During the acquisition of muscle electrical signals, if the time is long, the contact between the acquisition unit and the skin will often turn white due to local hypoxia.

[0008] 4. In the process of EMG signal acquisition, the problem of waterproof and dustproof of the heat dissipation holes on the acquisition unit for heat dissipation

[0009] 5. The contact mode of the reference electrode of the acquisition unit adhered to the skin through the silica gel sheet is prone to fall off during use

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