Wireless surface electromyographic signal pickup device and method and front-end compression method

Abstract

The invention discloses a wireless surface electromyographic signal pickup device and method and a front-end compression method. The device specifically comprises a wireless receiving terminal and a plurality of active wireless surface sensors which are in wireless communication with the wireless receiving terminal, wherein the active wireless surface sensors are used for high-fidelity pickup of surface electromyographic signals, and quantifying and transmitting the surface electromyographic signals, and the wireless receiving terminal is used for receiving the surface electromyographic signals picked up by the active wireless surface sensor and sending the signals to terminal equipment. The device solves the problem that the traditional wireless surface electromyographic signal acquisition device has a large amount of data, and the differential absolute value moving average algorithm is used by the front ends of the active wireless sensors to effectively compress the wireless transmission data amount, so that the support for the extension of channel number acquired by the active sensors is provided, and simultaneously, the time support for retransmission of lost packets is provided, and thus the ability of wireless peripheral object interference resistance and electromagnetic interference resistance is improved.

Description

technical field [0001] The present invention relates to the technical field of physiological signal pickup, and more specifically, relates to a wireless surface electromyographic signal pickup device, method and front-end compression method. Background technique [0002] The physiological signal interaction device collects physiological signals such as myoelectric signals, brain signals or nerve electrical signals, and judges the intention of the human brain by identifying the characteristic information of such signals. Signals are currently widely used in the fields of clinical body disease diagnosis, sports medicine, and rehabilitation engineering. Compared with the traditional implantable EMG signal, the surface EMG signal is obtained by attaching the conductive electrode to the skin surface. Its characteristic information can directly reflect the human body's action intention and has the directness of perceiving the action. Therefore, it can be used with the mechanical a...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a wireless surface electromyography signal pickup device, method and front-end compression method to overcome the limitation of acquisition channel expansion and wireless transmission due to the large amount of original data transmission in the prior art. distance, and the system's ability to resist electromagnetic interference

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