A Sonar-Based Omni Directional Obstacle Detection System Designed for Blind Navigation
"A Sonar-Based Omni Directional Obstacle Detection System Designed for Blind Navigation", (2004)
Armando B. Barreto and Maroof H. Choudhury
ABSTRACT: A blind navigational aid has been implemented that utilizes a multi directional sonar system for obstacle detection and an electronic compass for traveler heading detection. The system controls and gathers information from the sensors in real-time and presents the navigational information using a 3D audio interface based on Head Related Transfer Functions. This paper describes the hardware and software design for this real-time system.