A system and method for collecting electroencephalogram signals

Abstract

The present disclosure provides an EEG signal acquisition system and method. The system includes sequentially connected EEG signal acquisition electrodes, an EEG signal acquisition box, and an EEG signal receiving device. The EEG signal acquisition box includes an EEG signal acquisition Transmission panel and EEG signal acquisition control board, the electrode distribution of the EEG signal transmission panel is consistent with the EEG signal acquisition electrodes, the EEG acquisition control board includes several integrated circuit boards, each integrated circuit board is loaded with Several independent EEG chips, each EEG chip only accepts the EEG signal of one electrode; the EEG signal acquisition control board converts the EEG signal into an electrical signal and transmits it to the EEG signal receiving device through a switch; The EEG signal acquisition device proposed in the present disclosure has the characteristics of real-time synchronization, open interface, and strong market versatility, and can collect EEG signals anytime and anywhere.

Description

technical field [0001] The present disclosure relates to the technical field of EEG signal acquisition equipment, in particular to an EEG signal acquisition system and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] EEG signal acquisition equipment collects EEG signals and then generates EEG. Electroencephalogram (EEG) is the most effective medical imaging tool for analyzing and interpreting the characteristics of brain diseases, and is widely used in the diagnosis of brain diseases. The EEG signal is very weak, generally only about 50 microvolts, the amplitude ranges from 5 microvolts to 100 microvolts, and the frequency range generally ranges from 0.5 to 35 Hz. Due to the characteristics of weak level and narrow band of EEG signals, it is very difficult to extract these signals from strong EMG noise and power frequency interfer...

AI Technical Summary

Problems solved by technology

[0005] (1) Due to the high price, bulky size and complicated use of various EEG signal acquisition equipment, it cannot be widely used,

[0006] (2) The electrodes of the EEG signal transmission panel of the existing EEG signal acquisition equipment are all square, which makes it difficult for the panel electrodes to correspond to the EEG cap electrodes and difficult to observe

[0007] (3) The single-chip microcomputer used in the EEG acquisition control board of the existing EEG signal acquisition equipment, its I2C bus protocol does not support 32-bit channels, and cannot accurately collect EEG signals

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