Iris movement based wheel chair control using raspberry pi
01 Nov 2017-Vol. 263, Iss: 5, pp 052049
TL;DR: This paper enlists some of the already existing methods along with some add-ons to improve the existing system for quadriplegia rehabilitation, and designs a system, which will be designed using Raspberry Pi and IR Camera Module.
Abstract: Paralysis is considered as a major curse in this world. The number of persons who are paralyzed and therefore dependent on others due to loss of self-mobility is growing with the population. Quadriplegia is a form of Paralysis in which you can only move your eyes. Much work has been done to help disabled persons to live independently. Various methods are used for the same and this paper enlists some of the already existing methods along with some add-ons to improve the existing system. Add-ons include a system, which will be designed using Raspberry Pi and IR Camera Module. OpenCV will be used for image processing and Python is used for programming the Raspberry Pi.
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28 Aug 2018
TL;DR: In this paper, a plataforma prototipo simula parametros de vehiculos electricos for pruebas de acceleration, direcion, and frenado.
Abstract: En el 2016, segun datos del Fondo Colombiano de Enfermedades de Alto Costo, en Colombia, 69 entidades han reportado 68.247 casos de artritis reumatoide [1], esta enfermedad es autoinmune y afecta principalmente los cartilagos, huesos, tendones y ligamentos de las articulaciones. Es importante generar proyectos que integre las actividades cotidianas como la capacidad de conducir un vehiculo electrico con el fin de mejorar la calidad de vida de quienes padecen dicha enfermedad en las manos, es aqui donde el emprendimiento social se encarga de disminuir la desigualdad, la inclusion es pilar en el desarrollo de proyectos de gran impacto.
El desarrollo de este trabajo se dividio en diferentes fases, la primera de ellas fue la implementacion de la plataforma prototipo que simula parametros de vehiculos electricos para pruebas de aceleracion, direccion y frenado. lo cual se hicieron diferentes pruebas acoplando con la superficie de conduccion que esta basada en ordenes a partir de la posicion de las manos. Para la segunda fase se analiza la trazabilidad de la superficie de conduccion con el posicionamiento de las manos y la integracion de los sensores. Se realiza la parametrizacion del sistema con los demas dispositivos, la siguiente fase en la cual se implementa la instrumentacion con los sensores y actuadores necesarios para implementar las pruebas en la plataforma, y en la ultima fase se disena y realizan las pruebas de control con el bus de campo y la integracion de los diferentes dispositivos analizando la fiabilidad de los datos, logrando la estabilidad de la informacion propuesta como objetivo.
Por ultimo, se realizan pruebas al sistema terminado donde se comprueban tiempos de maquina de las ordenes de conduccion con respecto a los actuadores usados en la plataforma, comportamiento del control, tambien verificar aciertos y desaciertos que podrian ser la base para futuros trabajos de investigacion.
3 citations
Cites background from "Iris movement based wheel chair con..."
...En el área de ayudas técnicas, como el uso de sillas de ruedas inteligentes, se ha planteado prototipos controlados por la voz [16], o con visión artificial a partir de expresiones faciales y el movimiento de los ojos [17], [18], estos últimos orientado a personas con parálisis [19]....
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TL;DR: This project is help to those people who are not able doing any moment due to their illness, injury, or disability, who can move the wheel chair left or right by just looking to the required direction.
Abstract: the project discuss about a wheel chair based on eye gesture and hand gestures. This project is help to those people who are not able doing any moment due to their illness, injury, or disability. They can move the wheel chair left or right by just looking to the required direction, they can also start and stop the wheel chair, with other eye and hand gestures.
3 citations
TL;DR: In this article, a test setup was designed for three and/or four-wheeled electric mobility scooter models used by disabled or old people, which was composed of a test platform that enables measuring the performance of the scooter.
Abstract: In this study, a test setup was designed for three- and/or four-wheeled electric mobility scooter models used by disabled or old people. This system is composed of a test platform that enables meas...
1 citations
TL;DR: This study was designed to build a prototyping and develop algorithms that allow the detection, classification, and movement of objects of a robotic arm of 4 DOF with the following technologies: ArmUno arm structure, Raspberry Pi 3 B+, PiCam 2.1, driver PCA9685 for servomotors, Opencv3, and python.
Abstract: Goals. The present study was designed to build a prototyping and develop algorithms that allow the detection, classification, and movement of objects of a robotic arm of 4 DOF with the following technologies: ArmUno arm structure, Raspberry Pi 3 B+, PiCam 2.1, driver PCA9685 for servomotors, Opencv3, and python. Another goal was to measure the effectiveness of prediction and classification of objects photographed by the robotic arm, using machine learning with the KNN classifier method.
01 Jan 2021
TL;DR: System performance test result showed that the auxiliary solar power supply of the wheelchair increased the travel range by approximately 86% compared with that of a wheelchair powered by battery alone.
Abstract: A solar-powered omnidirectional wheelchair is implemented for physically challenged persons. The framework was mounted on the wheels that were connected with two direct current (DC) motors. The ratings of the battery and solar module were determined using system voltage (12V). A 7,805-voltage regulator was used to supply 5VDC to the AT89352 microcontroller. The microcontroller was programmed to provide a reference signal to the motor. The motor provides the needed torque to drive the wheels through interconnected relays. The relays are energized by the microcontroller and omnidirectional movement achieved through relays connected with microprocessor and micro switches, eliminating the need for joysticks and complex control mechanisms. System performance test result showed that the auxiliary solar power supply of the wheelchair increased the travel range by approximately 86% compared with that of a wheelchair powered by battery alone.
References
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18 Apr 2005
TL;DR: Experimental results using the wearable EMG based HCI and the electric-powered wheelchair developed show the proposed wearable EMg-based HCI is feasible for the users with severe motor disabilities.
Abstract: Electromyogram (EMG) signal generated by voluntary contraction of muscles is often used in rehabilitation devices because of its distinct output characteristics compared to other bio-signals. This paper proposes a wearable EMG-based human-computer interface (HCI) for electric-powered wheelchair users with motor disabilities by C4 or C5 level spinal cord injury. User expresses his intention as shoulder elevation gestures, which are recognized by comparing EMG signals acquired from the levator scapulae muscles with a preset threshold value. In this paper HCI command to control electric-powered wheelchair is made of combinations of left-, right-and both-shoulders elevation gestures. The proposed wearable HCI hardware consists of two active surface electrodes, a high-speed micro-controller, a Bluetooth module, and a battery. Experimental results using the wearable EMG based HCI and the electric-powered wheelchair developed show the proposed wearable EMG-based HCI is feasible for the users with severe motor disabilities.
161 citations
"Iris movement based wheel chair con..." refers background in this paper
...Al [3] Wearable EMG-based HCI for electricpowered wheelchair users with motor disabilities EMG based HCI is a wearable device....
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17 Sep 2003
TL;DR: This paper classified the pre-defined motions such as rest case, forward movement, left movement, and right movement by fuzzy min-max neural networks (FMMNN) and shows the feasibility of EMG as an input interface for powered wheelchair.
Abstract: The objective of this paper is to develop a powered wheelchair controller based on EMG for users with high-level spinal cord injury. EMG is very naturally measured when the user indicating a certain direction and the force information which will be used for the speed of wheelchair is easily extracted from EMG. Furthermore, the emergency situation based on EMG will be checked relatively ease. We classified the pre-defined motions such as rest case, forward movement, left movement, and right movement by fuzzy min-max neural networks (FMMNN). This classification results and evaluation results with real users shows the feasibility of EMG as an input interface for powered wheelchair.
90 citations
"Iris movement based wheel chair con..." refers background in this paper
...al [4] Human machine interface for wheelchair control with EMG and its evaluation EMG determines the direction and force information to drive the wheelchair based on its online adaptation function....
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01 Jan 2010
TL;DR: An application of eye tracking method to wheelchairs using the coherence algorithm, which tracks the movement of eye towards left or right, and the eye blinking feature is also used by the algorithm to control the starting and stopping of wheelchair.
Abstract: This paper proposes a new algorithm, the coherence algorithm, for eye movement tracking. Researchers continue to restore some functions lost by handicapped people using some powered electrical and robotic wheelchairs. This paper presents an application of eye tracking method to such wheelchairs. The coherence algorithm tracks the movement of eye towards left or right. The eye blinking feature is also used by the algorithm to control the starting and stopping of wheelchair.
50 citations
Journal Article•
TL;DR: This paper uses the optical-type eye tracking system to control powered wheel chair and uses this system to train the microprocessor to send signals to control the wheels and thus the overall movement.
Abstract: A powered wheel chair is a mobility-aided device for persons with moderate/severe physical disabilities or chronic diseases as well as the elderly. In order to take care for different disabilities, various kinds of interfaces have been developed for powered wheelchair control; such as joystick control, head control and sip-puff control. Many people with disabilities do not have the ability to control powered wheel chair using the above mentioned interfaces. The proposed model is a possible alternative. In this paper, we use the optical-type eye tracking system to control powered wheel chair. User‘s eye movement are translated to screen position using the optical type eye tracking system. When user looks at appropriate angle, then computer input system will send command to the software based on the angle of rotation of pupil i.e., when user moves his eyes balls up (move forward), left (move left), right (move right) in all other cases wheel chair will stop. Once the image has been processed it moves onto the second part, our microprocessor. The microprocessor will take a USB output from the laptop and convert the signal into signals that will be sent to the wheelchair wheels for movement. Also, the pressure and object detection sensors will be connected to our microprocessor to provide necessary feedback for proper operation of the wheelchair system. The final part of the project is the wheelchair itself. The rear wheels will provide forward. The front two wheels will be used for steering left and right. All four wheels will be connected to our microprocessor that will send signals to control the wheels and thus the overall movement.
41 citations
"Iris movement based wheel chair con..." refers methods in this paper
...Al [8] Eye Movement Based Electronic Wheel Chair for Physically Challenged Persons Camera will send the images of the eye to the Laptop where a continuously running MATLAB Script will do its image processing using Daugman’s Algorithm....
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20 Sep 2011
TL;DR: This work proposes new method beside the classic method, to control the motorized wheelchair using EOG signals, which allows the user to look around freely while the wheelchair navigates automatically to the desired goal point.
Abstract: In this work, we propose new method beside the classic method, to control the motorized wheelchair using EOG signals The new method allows the user to look around freely while the wheelchair navigates automatically to the desired goal point Only EOG signals are used to control the wheelchair, eye gazing and blinking The user can still choose to control the wheelchair using the classic manual method in case the environment and obstacles structure does not help with the auto navigation method In the new auto navigation method the micro controller can know the goal point direction and distance by calculating the gaze angle that the user is gazing at Gaze angle and blinks are measured and used as inputs for the controlling method Tangent Bug algorithm is used to navigate the wheelchair in Auto controlling method
27 citations
"Iris movement based wheel chair con..." refers methods in this paper
...al [9] Guiding Wheelchair Motion Based on EOG Signals Using Tangent Bug Algorithm In Electro-Oculography the electrodes are placed on the face, which generates a certain potential....
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