Speech Recognition Based Wheelchair Using Device Switching

Speech and Sensors in Improving the Guidance of an Electric Wheelchair by Handicapped Persons

Many people with disabilities do not have the necessary ability to control a joystick on an electric wheelchair. Moreover, they have difficulty to avoid obstacles. The aim of this work is to implement a multi-modal system to control the movement of an Electric wheelchair using small vocabulary word recognition system and a set of sensors to detect and avoid obstacles. In this work we adopted th...

Voice and Touch Screen Based Direction and Speed Control of Wheel Chair for Physically Challenged Using Arduino

This paper is to describe an intelligent motorized wheel chair for handicapped person using voice and touch screen technology. It enables a disabled person to move around independently using a touch screen and a voice recognition application which is interfaced with motors through microcontroller. When we want to change the direction, the touch screen sensor is modeled to direct the user to req...

Powered Wheelchair Control Using Acoustic-Based Recognition of Head Gesture Accompanying Speech

In this paper, we propose the novel interface for powered wheelchair control using the acoustic-based recognition of head gesture accompanying speech. A microphone array mounted on a wheelchair localizes the position of the user’s voice. Because the localized position of the user’s voice almost corresponds with that of the mouth, the tracking of the head movements accompanying speech can be ach...

Manual Wheelchair Automator: Design of a Speech Recognition System with Hidden Markov Models and Joystick Steering Control

A wavelet- and neural network-based voice interface system for wheelchair control

Voice control has long been considered as a natural mechanism to assist powered wheelchair users. However, one implementation difficulty is that a voice input system may fail to recognise a user’s voice. Indeed, speech activated interface between human and autonomous/semi-autonomous systems requires accurate detection and recognition. In this area pitch and end-point detection is of vital impor...