Stair Climbing Wheelchair

Project Title

Stair Climbing Wheelchair

Project Area of Specialization Mechatronics EngineeringProject Summary

A stair-climbing wheelchair, sometimes known as a wheelchair stair climber, is a mobility assist device that is designed to help people with mobility problems to get up the staircase with little or no assistance.

A Stair Climbing Wheelchair is a wheelchair having a stair climbing mechanism attached to it. The mechanism is based on the pulleys, belts, chain, and gear system. This portable type of wheelchair can climb stairs at any location. This wheelchair has a joystick that controls the motion of the wheelchair. This wheelchair also has chair self-leveling mechanism during stair climbing, that helps the person to not to fall. Hence the proposed stair climbing wheelchair offers these main features.

Project Objectives

Propose a design of a wheelchair that will increase the mobility and functionality of climbing stairs.

- Making the total prototype as cost-effective ad as less expensive as possible.

- Forming of a wheelchair structure that would carry up to 100 kg.

Project Implementation Method

The stair edge sensor firstly detects the edges of the stairs then the person gives a command from the joystick to move forward the signal from the controller moves towards the motor driver and the chair climb the stairs. At the same time, the gyro sensor gives the orientation, and from these orientation calculations the balancing motor balance the seat of the chair. The controller can also judge the remaining battery power using voltage rating. The controller of this proposed model is Arduino Uno, the motor drivers, sensors, and actuators.

Benefits of the Project

Powered wheelchairs have been in use for many years now, and it is unquestionable that they greatly improve the mobility of the handicapped. Nevertheless, architectural barriers still exist in many cities and buildings, and it is expensive and time-consuming. A wheelchair becomes a useless device when faced with an architectural barrier.

Especially for some patients living in a building without an elevator, it is difficult for them to travel up and down the stairs using a standard EPW. This results in patients staying indoors for a prolonged period of time, which is not conducive to their mental health and physical rehabilitation.

Technical Details of Final Deliverable

The stair edge sensor firstly detects the edges of the stairs then the person gives a command from the joystick to move forward the signal from the controller moves towards the motor driver and the chair climb the stairs. At the same time, the gyro sensor gives the orientation, and from these orientation calculations the balancing motor balance the seat of the chair. The controller can also judge the remaining battery power using voltage rating. The controller of this proposed model is Arduino Uno, the motor drivers, sensors, and actuators.

Final Deliverable of the Project Hardware SystemCore Industry MedicalOther IndustriesCore Technology Wearables and ImplantablesOther TechnologiesSustainable Development Goals Good Health and Well-Being for PeopleRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	41240
Arduino	Equipment	1	1250	1250
MP24 Gear Motor	Equipment	2	7000	14000
Linear Actuator	Equipment	1	3000	3000
Boost Converter	Equipment	1	1000	1000
MPU 6050	Equipment	1	260	260
Power Supply	Equipment	3	1000	3000
BTS 7960 Motor Driver	Equipment	2	1250	2500
Acrylic Sheet	Miscellaneous	1	3000	3000
Steel Model	Miscellaneous	1	7000	7000
Joystick	Equipment	1	130	130
L293D Motor driver	Equipment	1	450	450
2 Wheel chasis	Equipment	1	650	650
Chair	Equipment	1	5000	5000