Brain-computer interface short message sending control device and method

Abstract

The invention relates to a brain-computer interface short message sending control device and method. A brain-computer interface visual stimulator adopts a computer monitor to generate a pictorial stimulus signal in a programming way and is provided with a short message sender selection interface, a short message content selection interface and a confirmation cancelling interface for users to select. Visual stimulus adopts an instantaneous visual stimulus way and adopts a time sequence for same frequency compound stimulus. Signal processing comprises the following steps of: removing direct current of a brain electric signal, summarizing the average, carrying out lowpass filtering, judging a target watched by the testee through computing related coefficients between templates, and generating a brain-computer interface control signal. The sent mobile phone number and short message content can be obtained through a brain-computer interface test, and a control code is sent to a communication control module TC35, thus a short message is sent. The method provides a novel communication way for people who can not express ideal through actions of limbs and operate equipment.

Description

technical field [0001] The invention relates to a communication control device, in particular to a control device for sending short messages through a brain-computer interface. Background technique [0002] Brain-computer interface BCI (brain-computer interface) is a new way of human-computer interface. It is a communication system that does not rely on the normal output pathways (peripheral nerves and muscles) of the brain. It can provide people with a new way of communication and control, especially It can help patients with normal thinking but severe paralysis to communicate with the outside world and control equipment. [0003] Specific electrical activity occurs when the nervous system receives visual stimuli, such as graphics or flashing lights. The subject stares at the stimulus pattern he wants to choose, and compares the measured EEG signal with the pre-recorded template to determine the target the subject is looking at, thereby generating a control signal related ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a brain-computer interface short message sending control device for the defect that the prior art brain-computer interface cannot provide information exchange for disabled persons with language barriers. Objects and send message content and send short messages, so that disabled people who are inconvenient to use mobile phones can communicate with others

Images