System of indication of directions and warnings against collisions for locomotion of people with impaired vision in structured environments

This article deals with the development of Assistive Technologies in order to provide or expand functional abilities of people with visual impairments, analyzing in general is perceived that the technological evolution goes toward making life easier, this project is exactly the creation an indicator of direction and warning against collisions based on a data processing unit, approximate location system received signal strength indicator (RSSI) or indicator intensity of the residual signal in Portuguese, in structured environments coupled with a recognition unit obstacles that allows guide people with impaired vision by sending beeps. Key-words: System Approximate Location RSSI, Structured environments, Obstacle recognition. Sistema de indicacao de direcoes e alerta contra colisoes para locomocao de pessoas com deficiencia visual em ambientes estruturados