BluEase: dispositivo para melhoria da acessibilidade e mobilidade urbana de pessoas com deficiência visual

Abstract

This paper addresses the challenges faced by visually impaired individuals during urban commutes, emphasizing the heightened risk of accidents and mortality exacerbated by difficulties in street crossing. Possible solutions already developed and implemented include the use of guide dogs and other assistive technologies such as audible pedestrian signals, which are crucial for enhancing the quality and safety of life for visually impaired individuals, facilitating their mobility and fostering greater autonomy in daily activities. However, low adoption rates of guide dogs due to costs and a shortage of trainers, alongside limitations of existing assistive technologies, underscore the need for more accessible and efficient alternatives. In this context, the study proposes the conceptualization and prototyping of a portable device that interacts with pedestrian traffic lights using Bluetooth Low Energy (BLE) and Global Navigation Satellite System (GNSS), enabling activation of the signal upon approach. The proposed device utilizes both auditory signals and vibration to communicate pedestrian crossing authorization, adding an extra layer of security. By applying knowledge from Electrical Engineering and technological innovations, the implementation of this device aims not only to enhance mobility and ensure safer and more autonomous street crossings but also to become a viable and scalable solution that promotes inclusivity and accessibility. Results presented throughout this study demonstrate the feasibility and effectiveness of the device in communicating pedestrian crossing authorization, indicating its potential as an accessible and versatile solution capable of significantly improving the quality of life for visually impaired individuals and other affected groups.