Telephone system and method based on brain-computer interface

Abstract

The invention discloses a telephone system based on a brain-computer interface, which includes an EEG signal extraction device for extracting the EEG signals of a subject, an EEG signal preprocessing device connected with the EEG signal extraction device, and The data processing terminal for communicating with the electrical signal preprocessing device; the EEG signal sampling device includes the first EEG electrode, the second EEG electrode and the third EEG electrode for sampling the occipital lobe potential, the frontal lobe potential and the ear potential respectively. Electric electrode, the telephone system has simple structure, small size, reasonable design, easy operation, good use effect, and can meet the telephone use needs of special groups of people. The invention also discloses a communication method based on a brain-computer interface, including steps: 1. EEG signal extraction and transmission; 2. EEG signal sampling and synchronous upload; 3. EEG signal analysis and processing. The communication method is simple and easy to implement It is convenient and effective, and can automatically complete various telephone operations such as dialing and answering according to the EEG signals of the testee.

Description

technical field [0001] The present invention relates to a telephone system and its method, in particular to a brain-computer interface-based telephone system and its method. Background technique [0002] Brain-computer interface technology based on visual evoked potentials is still in its infancy in China, so there are relatively few related studies. A research team at Nanchang University has designed a dialing system based on a brain-computer interface. Institutions such as Tianjin Vocational and Technical Normal University have also conducted related research, but the systems they designed have the following common problems: [0003] First, most systems can only perform analog dialing and cannot make calls. Even if a few of these systems can make calls, they need to be operated one by one. When a user with physical impairments has an emergency, it may take a long time to dial for help, resulting in accidents; [0004] Second, if there are people with limb movement impai...

AI Technical Summary

Problems solved by technology

[0003] First, most systems can only perform analog dialing and cannot make calls

Even if a few of these systems can make calls, they need to be operated one by one. When a user with physical impairments has an emergency, it may take a long time to dial for help, resulting in accidents;

[0004] Second, if there are people with limb movement impairment and language impairment among users, the brain wave telephone system cannot meet the needs of this special group of people;

[0005] Third, it is not possible to answer the phone through the visual evoked potential, which is not conducive to the real-time understanding of the user's physical condition by family members and medical staff

Since the brain wave phone is aimed at special groups of people with physical impairments, the large volume is not conducive to practical application

[0007] In summary, since the existing brainwave dialing system based on the brain-computer interface consists of three parts: a stimulator, a PC, and a brainwave sampling circuit, it is bulky and inconvenient to carry

In addition, you can only make phone calls by dialing one by one, and you cannot make emergency calls in emergency situations, and there is no function of sending text messages, let alone answering calls through visual evoked potentials.

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