Calling device based on brain electric information demodulation

Abstract

The invention discloses a calling device based on electrical brain information demodulation, which is to provide the calling device based on stable state visual induction electric potential demodulation for a ward calling system to substitute for a keypad type calling machine. The calling device consists of a service sign screen, an electrical brain collector, an electrical brain amplifier, an A / D converter and a calling extension machine; wherein the service sign screen is a LED display screen. The electric brain collector consists of 3-5 active electrodes, is fixed on the scalp on the position of occipital lobe of hind brain of a patient and is connected with the electric brain amplifier. Multi-lead electric brain signals are amplified by the electric brain amplifier and are transmitted to the A / D converter. The A / D converter transforms simulation signals into digital signals and transmits the digital signals to the calling extension machine. LED display control software and electric brain processing and analyzing software are arranged on the calling extension machine. The LED display control software controls the display of the service sign screen. The electric brain processing and analyzing software processes and analyzes the electric brain data in real time and transmits calling information to a host machine. The invention can substitute non-contact and non-action type fixation operation for keypad type operation.

Description

technical field [0001] The invention relates to brain-computer interface technology, in particular to a calling device in a non-contact and non-action calling system that can be applied to a ward based on electroencephalogram information detection. Background technique [0002] The ward call system is a must-have device in the hospital ward at present. It is used for patients or escorts to call the doctor when needed, so as to get the doctor's attention in time. It is of great value for patient care and ward management. The ward call system is generally composed of a call host and a pager (or call extension). The pager is generally one for each bed, and is generally hung or fixed on the wall above the bed to send a call signal to the call host; the call host is A computer, usually located in the doctor's duty room, is used to receive the call signal, send an alarm to the doctor, and instruct the call bed. At present, there are ward call systems produced by many manufacturer...

AI Technical Summary

Problems solved by technology

[0015] Although many exciting results have been achieved in the field of brain-computer interface research, most of the current research is still in the laboratory exploration stage, and there are still very few products that truly use the characteristics of EEG signals to serve the disabled and assist in rehabilitation. As for the calling system based on steady-state visual evoked potential detection that comprehensively utilizes the above various technologies, there is no public report yet.

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