A high school student at New Galaxy Academy, Arunachal Pradesh, India, Anang Tadar left everyone stunned by his innovative and unique pair of goggles called G4B (Goggle for Blind). The G4B goggles use ultrasonic and infrared sensors to help visually impaired people by detecting obstacles in their path. The goggles work by using sonar, similar to bats’ echolocation.
Anang Tadar showing off the G4B goggles at the Regional Level Innovation Festival, Guwahati Regional Centre
G4B is designed to be used by the visually impaired, they’ll get alerts about the obstacles in the path with the same technology as car parking sensors.
Anang says the goggles can detect any obstacles within 2 meters in its field of view of ~150°. He installed ultrasonic sensors on both sides of the goggles to detect the obstacles.
“There is also an infrared sensor in the middle of the gadget to detect obstacles in case both the ultrasound sensors fail,” he said.
A beeping sound is heard along with a vibration whenever the goggles detect an obstacle within the range, giving an idea of distance by measuring the time it takes for the ultrasonic waves to bounce back to the sensors installed on the goggles.
“I wanted to help the blind people, I can’t give them eyes but virtually I can make a machine which can help them to navigate in their surrounding,” says Anang
“The initial cost was around $200 but if its launch in the market I think it would cost around $20, so every blind people can easily afford it”
Tadar says “NIF is asking me to make some more prototypes, UNICEF will market upon the final product.” The initial product was heavier and not as suitable to wear, so the aim is to make it lighter and well designed.