EOG controlled Electric Wheelchair for Quadriplegic Patients.

1. EOG Controlled Electric Wheelchair
Md. Fahim Bhuyain, Nazmus Sakib, Md. Ahsan-Ul Kabir Shawon, Md. Kafiul Islam, and Khosru M. Salim
Department of Electrical and Electronic Engineering, Independent University, Bangladesh.
Quadriplegia is a form of paralysis caused by serious neurological disease or severe brain/spinal cord injury that results in the partial or total loss of use of all four limbs (both legs and arms) where the
affected person lost both of his/her sensation and control. In this project, we have designed and developed an EOG-based Electric Wheelchair system for patients suffering from Quadriplegia. The designed
EOG recorder is used to capture intentional eye blink and eye movements (i.e. EOG signals) performed by the patient sitting in the Wheelchair. The electric wheelchair is also designed and implemented by
converting a normal chair to wheelchair. The EOG system is portable which can be worn by the patient to control the wheelchair. The overall cost of the developed system is around 20,000 BDT. If the
project gets funding and other logistic support from Govt. and/or private organizations, then commercialization of the whole system can be possible which will further reduce the overall cost due to mass
production. The proposed system has a huge potential to be used by our country’s rural and middle-income people suffering from similar disability who can’t afford commercially available expensive
automated electric wheelchairs (price range starting from 80,000 – 100,000 BDT). This project can be further modified to use in other applications for the same type of patients, like EOG controlled mouse
cursor and keyboard for computer use. Thus this EOG-based human-machine interface applications can significantly enhance the quality of life for such middle-income or lower-middle income patients
living in rural areas.
• Every year, around the world, between 250 000 and 500 000
people suffer a spinal cord injury (SCI).
• In Bangladesh 1,272,064 people are suffering from paralysis
and 23% of this people are suffering from spinal cord injury.
• Quadriplegic people loses the use of their hand and leg. So in
order move around they have to relay on other people.
The EOG based wheelchair is controlled by eye movement. The people suffering from Quadriplegia will be able to move around by only moving their eye-balls. The controlling is very easy and the signal
recording and detection is quite accurate. The system is not very difficult to get used to. With a little practice they will be able to get used to the device and will be able to control wheelchair perfectly.
Proposed System
• To make the EOG device Wireless.
• To make the whole system user-friendly.
• To test the system with Quadriplegic subjects.
• To improve the system according to the feedbacks
from quadriplegic subjects.
• To design and develop a low-cost EOG controlled electric
wheelchair using local available resources.
• To help to improve the quality of life for the Quadriplegic or
similar physically challenged people.
• The overall cost of the proposed system is approx. 20,000 Tk.
• The available EEG device costs $100 or 8500 Tk. (minimum).
And the available electric wheelchair costs 1,15,000 Tk.
(minimum).
Background & Motivation
Objectives
Cost Analysis
Future Works
Conclusion
Summary
BDT 20,000.00
BDT 120,000.00
BDT 0.00
BDT 20,000.00
BDT 40,000.00
BDT 60,000.00
BDT 80,000.00
BDT 100,000.00
BDT 120,000.00
BDT 140,000.00
Proposed System Available Product
Cost Analysis
29%
23%17%
7%
5%
19%
Cause of ParalysisStroke
Spinal Cord Injury
Multiple Sclerosis
Cerebral Palsy
Post Polio Syndrome
Other