Brain-computer interface based telephone system and call method thereof

Abstract

The invention discloses a brain-computer interface based telephone system comprising an electroencephalogram extractor, an electroencephalogram preprocessing unit and a data processing terminal. The electroencephalogram extractor is used for extracting electroencephalograms of a testee; the electroencephalogram preprocessing unit is connected with the electroencephalogram extractor; the data processing terminal is communicated with the electroencephalogram preprocessing unit. An electroencephalogram sampling unit comprises a first electroencephalogram electrode, a second electroencephalogram and a third electroencephalogram which sample occipital area level, frontal area level and aural area level respectively. The brain-computer interface based telephone system is simple in structure, small in size, reasonable in design, simple to operate and good in utilization effect; the demands of special populations for telephone usage can be met. The invention further discloses a brain-computer interface call method; the method includes the steps of 1, extracting and transmitting electroencephalograms, 2, sampling and synchronously uploading the electroencephalograms, and 3, analyzing the electroencephalograms. The call method is simple, convenient to implement and good in utilization effect; various telephone operations, such as dialing and answering, are automatically performed according to electroencephalograms 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 im...

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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