An application of parametric speaker technology to bus-pedestrian collision warning
Alex Burka, Alaric Qin, Daniel D. Lee · 2014
The purpose of this research is to address the problem of frequent bus-pedestrian accidents in dense urban areas through the creation of an intelligent pedestrian warning system. Our proposed system uses visual detection and parametric speaker technologies to provide a concise, focused beam of sound that reaches only the detected target while minimizing the amount of disruption and disturbance to neighboring areas. We believe that this solution will provide a minimally invasive, cost-effective method for avoiding bus-pedestrian collisions and substantially reducing the loss of life and property. In this paper, we first present a review and analysis of the relevant technologies and current implementations. Then, we provide a detailed overview of the system that we have developed, and discuss our tests and data collected. Finally, we conclude with a brief discussion of future engineering and cost considerations for implementation of this system in a practical setting.