| abstract |
The invention discloses an EEG signal acquisition system based on ultraviolet light communication. , which is used to modulate the EEG signal processed by the analog front end; the ultraviolet light communication module has a transmitting unit and a receiving unit; wherein, the transmitting unit is connected to the microprocessor and is used to convert the EEG signal modulated by the microprocessor. It is an ultraviolet light signal and sends it out; the receiving unit is used to receive the ultraviolet light signal and restore it to an EEG signal. The invention adopts the ultraviolet light communication mode for signal transmission, which not only avoids the problems that the traditional wired transmission is restricted by distance and obstacles, but also expands the detection range and distance, and makes up for the shortcomings that the existing radio frequency communication is easy to be eavesdropped and interfered, and improves the The accuracy of communication is suitable for a variety of complex scenarios. |