Dual Sensor Recognised Wheel Chair For Handicapped People Bhuvaneswari.C1 Assistant Professor Electrical and Electronics Department Sathyabama University Chennai firstname.lastname@example.org Dr.K.Vasanth2 Associate Professor Electrical and Electronics Department Sathyabama University Chennai email@example.com Abstract— This paper is on a intellectual Wheel Chair designed especially for Handicapped People. The Wheel Chair can be given input either by speech or by touch screen. So it can be used by Handicapped People who are dumb and blind. The direction and Speed of the Wheel Chair can be controlled easily and without spending much effort by the people. Keywords-component; Wheel Chair; Voice Recognition Sensor; Touch Recognition Sensor I.
GUI of the android application have the facility to control the direction of the wheelchair and it has the provision to control electrical home appliances using radio frequency concept. System design uses IOIO board which contains a single MCU that acts as a USB host and interprets commands from an android application. Pin 31 and pin 33 of IOIO board are used as PWM output which is given to DC motor driver MD30C and pin 32 and pin 34 are used as direction control pins. Output of the DC drive is fed to two DC drive to move the wheelchair in different direction. For forward movement of the wheelchair both DC motor are rotated in forward direction.
FOR WHEELCHAIR CONTROL Fig.1- Block diagram for wheelchair control Figure 1 schematically shows the main components of the wheelchair system. The implementation of our project was done using the following major components: 1.ATMEGA16 microcontroller to control the speed and direction of the wheelchair.. 2. DC motors to drive the wheels of the chair. 3. Batteries to supply the desired power to the motors.
The alternative design which we finalized, captures the images using a webcam that will be attached to the laptop placed on the wheelchair of the user.These captured images will be sent to the Matlab where it will compare the images with the pre input images and give the required output to the Arduino which is further connected to the motor of the wheelchair. Thus with these serial commands given to the motor by the Arduino through Matlab will decide direction of the wheelchair. The commands given to the Matlab can include commands like Left, Right, Stop, Forward, Reverse
The design must not impede the collapsibility of the wheelchair. The goal of a wheelchair is to increase its user’s mobility. For ease of travel and storage, many manual wheelchairs have been designed to be able to fold or collapse, and implementing this feature is important in increasing portability of the chair. 6. Propulsion must be available for either side of the chair.
A study found that more than 50% of today’s jobs require some degree of skills related to technology, computer, and keyboard usage, and not many require handwriting skills. Such frequent use of modern technologies may lead to important changes in human basic psychomotor and cognitive skills. These changes are likely because of reduced practice and training of specific skill, which results in tasks being taken over by cognitive tools like keyboards. Such lack of practice not only selectively damage the specific untrained skill, but can spread up and affect a much wider range of human skills. Many researchers are now investigating the influence of modern technologies on human abilities to raise awareness of the possible losses that come along with the latest technologies, and the possible impact on individuals and society as a whole.
MATERIAL AND METHODOLOGY: The four wheel steering system is done with rack and pinion steering mechanism. The front axle and rear axle are connected to rack and pinion steering The front and rear axle are connected to the steering shaft connected steering wheel. The front and rear axle can be engaged and disengaged according our need Figure 3. Driving Gears Steering arrangement Figure 4. Steering arrangement WORKING AND DESCRIPTION: In four-wheel steering systems, the rear wheels are steered by a computer and actuators.
Hand and finger geometry systems have a few strengths and weaknesses. Since hands and fingers are less distinctive than fingerprints or irises, some people are less likely to feel that the system invades their privacy. However, many people's hands change over time due to injury, changes in weight or arthritis. Some systems update the data to reflect minor changes from day to day. For higher-security applications, biometric systems use more unique characteristics, like
Abstract— People with serious visual impairments can travel independently, using a wide range of tools and techniques. They are taught how to travel safely, confidently, and independently in the home and the community. Use of cane has many disadvantages such as limited perception and lack of depth assessment. In this paper, we have proposed a system that overcomes the difficulties faced by the cane by using ultrasonic sensor, GPS and GSM. Keywords — Ultrasonic sensor, GPS, GSM.Bluetooth HC-05, Voltage Regulator, Android Application.
A technical problem is the most common one. This includes, short circuited wirings, disability of the device to determine voices, and malfunctioning of the appliances due to improper installation of the device. Moreover, Home Voice Command Devices may also disadvantageous for certain classes of people like the elderly, children and handicapped ones and each class may have different concerns when using it. Therefore, there should be limitations in using voice-activated devices since it is not all the time that it will provide the society its