A group of student engineers in Indiana has developed a wearable device designed to help people who are blind or visually impaired detect obstacles that can be difficult to identify with a cane or guide dog alone. The project, called AuralVision, combines distance-sensing technology and haptic feedback to provide additional awareness of nearby objects, WKRC reported.
The idea originated with John Marum, a Rose-Hulman graduate and founder of the nonprofit AuralVision. He said the concept came after seeing time-of-flight sensors being used to monitor supplies inside airport facilities. That observation led him to wonder whether similar sensors could help visually impaired people identify objects in their path.
Working alongside five engineering students, Marum helped develop a prototype that could detect nearby obstacles and communicate their location to users. The original design resembled a pair of smart glasses equipped with sensors and audio guidance features.
But after feedback from visually impaired testers, the development team shifted in a different direction. Test users suggested that a baseball cap might be easier and more comfortable to use when walking outdoors. The revised design places sensors around the brim of the cap and provides vibration-based feedback to alert users about obstacles and their direction.
Developers say one goal was to make the technology as practical and affordable as possible. Unlike many connected devices, the system is designed to work without an internet connection, smartphone app, software updates or monthly subscription fees. A built-in battery can reportedly power the device for about 12 hours.
The student team also gathered feedback from visually impaired residents at an assisted-living community. Some participants reported that constant vibrations could be distracting, particularly for older users, providing valuable insight for future versions of the technology.
Rather than viewing that feedback as a setback, the students saw it as an opportunity. The team said future versions could include different vibration patterns or customization options that better fit user preferences and age groups.
For now, the device remains a prototype, but its creators hope additional testing and development could eventually bring the technology to the marketplace. If successful, the project could provide another tool to help people with blindness or low vision move through the world more independently.
