A controller system based on high-speed ssvep intelligent wheelchair and its control method

A technology of controller and main controller, which is applied in vehicle rescue, patient's chair or special transportation tools, medical transportation, etc. It can solve the problems affecting the user's control speed and the low communication rate of brain-computer interface commands, and achieve The simple effect of the system

Active Publication Date: 2018-10-19
INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the command communication rate of the brain-computer interface is low, which affects the user's control speed
Second, long-term operation brings certain mental pressure to users, and users need to monitor their physical and mental conditions. Therefore, a controller system and its control method based on high-speed SSVEP intelligent wheelchairs are proposed to address the above problems

Method used

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  • A controller system based on high-speed ssvep intelligent wheelchair and its control method
  • A controller system based on high-speed ssvep intelligent wheelchair and its control method
  • A controller system based on high-speed ssvep intelligent wheelchair and its control method

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Experimental program
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Effect test

Embodiment 1

[0037] Using i.mx6 core board, EEG signal acquisition and processing through SPI bus, the EEG signal obtained by ADS1299 can be obtained through CCA. "EEG signal. Flashing and displaying on the main display through hdmi the flashing blocks in the "self-control" mode, obstacle prompts and dual camera images; the 104 keyboard in the "assist" mode is used to type notices to the network server; the user's destination or intention , obstacle prompts and dual camera images. Wheelchair and pan / tilt control, control the two motors of the electric wheelchair and the pan / tilt to move through the PWM signal. In order to ensure comfort, the movement speed in the "self-control" mode shall not exceed 0.5 m / s. No more than 10 km / h (2.78 m / s) in "assist" mode. The network connection is connected to the Bluetooth wifi two-in-one module RL-UM02WBS-8723BU through the USB interface to realize the connection with 4G. Image transmission transmits the dual camera images to the web server. For n...

Embodiment 2

[0039] Using i.mx6 core board, EEG signal acquisition and processing through SPI bus, the EEG signal obtained by ADS1299 can be obtained through CCA. "EEG signal. Flashing and displaying on the main display via hdmi the flashing block and display in "self-control" mode figure 1 , obstacle prompts and dual-camera images; 104 keyboards in the "Assist" mode, used to type notices to the web server user's destination or intention, obstacle prompts and dual-camera images. Wheelchair and pan / tilt control, control the two motors of the electric wheelchair and the pan / tilt to move through the PWM signal. In order to ensure comfort, the movement speed in the "self-control" mode shall not exceed 0.5 m / s. No more than 10 km / h (2.78 m / s) in "assist" mode. The network connection is connected to the Bluetooth wifi two-in-one module RL-UM02WBS-8723BU through the USB interface to realize wireless routing connection. Image transmission transmits the dual camera images to the web server. Fo...

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Abstract

The invention discloses a controller system of an intelligent wheelchair based on high-speed SSVEP and a control method of such controller system. The controller system comprises a power conversion module, an electroencephalogram acquisition module, a master control displayer module, a sensor module, a master controller module, a network module, a control module and the intelligent wheelchair, wherein the power conversion module is electrically connected with the electroencephalogram acquisition module, the master control displayer module, the sensor module, the master controller module, the network module and the control module, the master control displayer module is connected with the electroencephalogram acquisition module, the electroencephalogram acquisition module is connected with the sensor module, and the control module is connected with the master controller module through the network module. The controller system is capable of meeting requirements within front-back 180-degree view angles after a displayer gives obstacle distance and direction prompts and voice prompts, thereby being convenient to use.

Description

technical field [0001] The invention relates to a controller system and a control method thereof for an intelligent wheelchair, in particular to a controller system and a control method thereof based on a high-speed SSVEP intelligent wheelchair, and belongs to the technical field of intelligent wheelchair applications. Background technique [0002] Brain-computer interface technology is mainly aimed at patients who are completely incapacitated, such as patients with amyotrophic lateral sclerosis (ALS) or patients with general paralysis. They cannot move or speak, and by extracting EEG signals patients can use their thoughts to communicate with the outside world. At present, brain-computer interfaces can be divided into two types: implantable and non-implantable. Implantable brain-computer interfaces require craniotomy on the patient, and chips or electrodes are placed in the brain, so better signals can be obtained, but there are certain medical risks. The non-implantable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/10A61G5/04
CPCA61G5/04A61G5/10
Inventor 徐圣普刘明陈小刚蒲江波谢小波
Owner INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI
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