Man-machine interface system based on fusion of surface electromyography (EMG) and myocrismus signals

A technology of signal fusion and man-machine interface, applied in the field of biomedical engineering and man-machine interface, can solve the problems of lack of man-machine interface technology for fusion of myoelectric signal and muscle sound signal decoding, low decoding rate, and low overall signal noise , to eliminate the interference of environmental noise and body motion artifacts, enhance robustness, and improve the effect of signal-to-noise ratio
CN104850231AActive Publication Date: 2015-08-19上海念通智能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
上海念通智能科技有限公司
Publication Date
2015-08-19

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Abstract

The present invention discloses a man-machine interface system based on fusion of surface electromyography (EMG) and myocrismus signals, comprising a combined acquisition apparatus of EMG and myocrismus signals and a fusion decoding apparatus of EMG and myocrismus signals. The combined acquisition apparatus of EMG and myocrismus signals is used to simultaneously acquire single-channel surface EMG and myocrismus signals or multi-channel surface EMG and myocrismus signals. The fusion decoding apparatus of EMG and myocrismus signals is used to decode a human intention so as to convert the human intention into a control instruction of an external device. The combined acquisition apparatus of EMG and myocrismus signals comprises a surface electrode module and a myocrismus sensor module. The combined acquisition apparatus of EMG and myocrismus signals collects an EMG signal by using the surface electrode module, and collects a myocrismus signal by using the myocrismus sensor module. On a same muscle, the combined acquisition apparatus of EMG and myocrismus signals can collect both an surface EMG signal and a myocrismus signal simultaneously, so as to reflect muscle activities both in terms of muscle electrophysiology and in terms of muscle vibration.
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Description

technical field

[0001] The invention relates to the technical field of biomedical engineering and man-machine interface, in particular to a man-machine interface system based on fusion of surface myoelectricity and myotone signals. Background technique

[0002] Surface electromyography (SEMG) describes the discharge phenomenon of motor neurons during muscle contraction, and is an important information for non-invasive detection of muscle activity on the body surface. Myoelectric signals reflect human action intentions, so they can be widely used in human-machine interface technologies, such as teleoperation and prosthetic control. However, the EMG signal also has many deficiencies, such as the need to clean the skin before the EMG sensor is placed, the EMG signal is sensitive to changes in skin impedance, skin sweating, and poor anti-interference ability. Human-machine interface robustness of electrical signals.

[0003] Muscle sound signal, also known as myogram, is the l...

Claims

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