Using Voice Guidance, an Intelligent Walking Assistance Mechanism for the Blind

This study develops a perfect blind stick that may be used by the sight handicapped to feel their way around and find things. This study suggests a high-tech blind stick, which, with the help of enhanced equipment, enables visually impaired people to move around with relative ease and take a break, if necessary. The stick features a GPS, Bluetooth, a foldable seat, and an ultrasonic sensor. Our proposed model uses ultrasonic sensors that emit ultrasonic waves ahead of it to detect obstacles. When an obstacle is detected, the sensor relays that information to a Raspberry Pi 3, which then processes the information and calculates how close the obstacle is. If the Raspberry Pi 3 detects an impending danger, a buzzing sound will be issued. The circuit does not react if the identified barrier is too far away. The GPS system on the stick can be used anywhere. The Raspberry Pi 3 will vibrate as a warning if the detected obstacles are within a safe distance. The stick also has a capability that lets the user feel how much light is in a certain area. The blind individual can locate the stick without any difficulty. A remote is fitted with a button for this function. The stick's buzzer can be activated via remote control, making it easier for the blind person to locate it. In an emergency, a GPS module can be used to get to a certain location and contact a specific person by text message. The advanced blind stick also features a tripod support at its base, allowing the visually impaired to extend the stick and unfold it into a seat. The hardware of the system consists of a microcontroller and various sensors, including a proximity sensor and a ping sonar sensor. The stick's handle has been redesigned to fold out into a flat seating surface when not in use.