A Novel Design of Gesture and Voice Controlled Solar-Powered Smart Wheel Chair with Obstacle Detection

Author(s):  
AKM Bahalul Haque ◽  
Shawan Shurid ◽  
Afsana Tasnim Juha ◽  
Md. Shadman Sadique ◽  
Abu Sayem Mohammad Asaduzzaman
Author(s):  
Dia Milani ◽  
Minh Tri Luu ◽  
Scott Nelson ◽  
Graeme Puxty ◽  
Ali Abbas

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Adeniran Badejoko-Okunade ◽  
Adefemi Adekunle ◽  
Oluwole Arowolo ◽  
Samuel Adejuyigbe

The first wheelchair model could be traced to the 5th, 6th and later in 18th century. However, tremendous development and great achievements in this field started mid of 20th century. Since that time, varieties of models have been designed, leading to wide range of products. This work involves the development of an automator (ergonomically attachment) to convert a manual wheelchair into an electric wheelchair for domestic use by Nigerian physically disabled people who could not pay the high cost of a ready-made motorized or an electric-powered wheelchair. A gear motor and drive system has been integrated in this automator for convenience and easy control for the user. Two units of 12v batteries and breaking system has also been integrated into this work and by this, obtained an automatic wheelchair which can be driven with the possibility of avoiding obstacles by the use of the obstacle detection components. In addition, obstacle detection component is also incorporated to the system to serve as added alert feature in case the wheelchair is been used by a blind user. The automator which is attached to the wheelchair has been developed to enhance easy and long distance movement. It helped the disabled move around without external interference. A manual wheelchair does not give sufficient mobility, it has a limited range and is very difficult to use on rough and harsh terrain. This work is designed as a solution to this problem by combining the comfort and maneuverability of a wheelchair with the capability and efficiency to move about. This work will benefit the physically challenged people.Keywords—Automator, obstacle detection, electric-powered wheelchair, wheel chair, mobility. 


2020 ◽  
Author(s):  
Modestus O. Okwu ◽  
Lagouge K. Tartibu ◽  
Michael Ayomoh ◽  
Daniel Ighalo

Abstract Navigation for persons with physical disability very often poses a major challenge to both the victims and their dedicated navigation assistance-provider. This age-long problem has been a major concern in diverse research fields in the literature ranging from assistive medicine to applied intelligence amongst others. This research work is a build-up to the literature, hence, has presented an automated wheelchair system designed, fabricated and enhanced with joystick capability for obstacle detection and autonomous stoppage. A microcontroller unit known as Arduino uno was built into the system architecture to synchronise the entire set-up by driving the DC motor for directional and linear motion of the wheel chair. The developed system would greatly improve the community of people who have lost some means of independent mobility thereby leading to an improvement in their self-esteem enabling them pursue their vocational and educational goals. Conclusively, the developed system was tested using Adaptive Neuro-Fuzzy Inference System (ANFIS), the sensitivity rule viewer at the first trial gave a total intelligence of 63.8%, further improvement was made and a second trial gave a rating of 75% and the final gave a value of approximately 80%. This shows that the system is efficient, effective and of excellent performance.


Solar Energy ◽  
2017 ◽  
Vol 153 ◽  
pp. 348-359 ◽  
Author(s):  
Mishal Alsehli ◽  
Jun-Ki Choi ◽  
Mohammaed Aljuhan
Keyword(s):  

Author(s):  
Dost Muhammad Khan ◽  
Zain Mumtaz ◽  
Majid Saleem ◽  
Zeeshan Ilyas ◽  
Qinglu Ma ◽  
...  

We present an Arduino-based automatic robotic system which is used for cutting grass or lawns, mostly healthy grass which needs to cut neatly like in a public park or a private garden. The purpose of this proposed project is to design a programmable automatic pattern design grass cutting robot with solar power which no longer requires time-consuming manual grass-cutting, and that can be operated wirelessly using an Android Smartphone via Bluetooth from a safe distance which is capable of cutting the grass in indeed required shapes and patterns; the cutting blade can also be adjusted to maintain the different length of the grass. The main focus was to design a prototype that can work with a little or no Physical user interaction. The proposed work is accomplished by using an Arduino microcontroller, DC geared Motors, IR obstacle detection sensor, motor shield, relay module, DC battery, solar panel, and Bluetooth module. The grass-cutting robot system can be moved to the location in the lawn remotely where the user wants to cut the grass directly or in desired patterns. The user can press the desired pattern button from the mobile application, and the system will start cutting grass in the similar design such as a circle, spiral, rectangle, and continue pattern. Also, with the assistance of sensors positioned at the front of the vehicle, an automatic barrier detection system is introduced to enhance safety measurements to prevent any risks. IR obstacle detector sensors are used to detect obstacles, if any obstacle is found in front of the robot while traveling; it avoids the barrier by taking a right/right turn or stop automatically appropriately, thereby preventing the collision. Also, the main aim of this project is the formation of a grass cutter that relieves the user from mowing their own grasses and reduces environmental and noise pollution. The proposed system is designed as a lab-scale prototype to experimentally validate the efficiency, accuracy, and affordability of the systems. The experimental results prove that the proposed work has all in one capability (Simple and Pattern based grass cutting with mobile-application, obstacle detection), is very easy to use, and can be easily assembled in a simple hardware circuit. We note that the systems proposed can be implemented on a large scale under real conditions in the future, which will be useful in robotics applications and cutting grass in playing grounds such as cricket, football, and hockey, etc.


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