Wearable fatigue driving monitoring system and method based on forehead electroencephalogram signals
An EEG signal and fatigue driving technology, which is applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems affecting driving safety, complex detection equipment, and interference with the normal operation of the driver, achieving comfortable wearing and accurate judgment The effect of high and high practical value
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[0026] Such as figure 1 As shown, the present invention designs a wearable fatigue driving monitoring system based on forehead EEG signals, which includes a forehead EEG signal acquisition module, a fatigue state recognition module, a result feedback and intervention module, and a device power supply module. The forehead EEG signal acquisition module, the fatigue state recognition module, the result feedback and intervention module are connected through the Bluetooth transmission module, and the device power supply module provides power to them.
[0027] The forehead EEG signal acquisition module includes acquisition electrodes, preprocessing circuits, amplification circuits, and A / D conversion circuits connected in sequence. The pre-processing circuit includes a second-order passive low-pass filter circuit and a limiter circuit to eliminate high-frequency interference and overvoltage protection; among them, the low-frequency cut-off frequency is 40kHz, and the pas...
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