Blind People Stick Tracking Using Android Smartphone and GPS Technology

Blindness is a term to describe conditions of people who have visual impairments. When visually impaired do an activity outside, he usually needs stick help them move. This study aims develop tracking that enable family member find the location blind when they are outside their home and can travel. GPS (Global Positioning System) technology allows get signal for its coordinates. wants blind, send text message with keyword TRACKER mobile phone number stick. A GSM System Mobile Communication) module will reply containing global coordinate, which Google Maps visualize. In addition, actively emergency families if difficulty finding way home. An push button available on stick, which, pressed, coordinates family's in form short message. During travelling, identify obstacles front thanks ultrasonic sensor system The detect object range 100 cm. If detects less than cm, buzzer emit edible sound blind. Observations show developed works well average error at level 11.89 meters. It also shows fluctuating percentage errors depending distance objects.