Design and Analysis of a Smart Blind Stick for Visual Impairment

摘要: For a long time, visually impaired person uses white cane to guide their way when travel outside. The has been useful for the blinds in improving mobility but unfortunately its limitation. One of shortcomings is that, it could only detect obstacles that are within contact ranges cane. This problem sometimes cause blind be trouble because insufficient time and warn new front person. research proposes walking stick system two functions; classify an height whether low or high hole. ability obstacle will help either step over avoid obstacle. hole should time. use ultrasonic sensors detection height, laser sensor A controller used monitor analyze data from feedback user through vibration buzzer. algorithm differentiate working well able obstacles. ranging successfully tested detection. Therefore, with more move around much faster feeling safer due improved warning movement.