Abstract:

The safety and mobility of visually impaired individuals are significantly affected by their inability to detect surrounding obstacles in real time. This paper presents the design and development of a wearable ultrasonic-based navigation glove that provides haptic feedback to assist blind users in identifying nearby obstacles. The system utilizes an HC-SR04 ultrasonic sensor to measure the distance of objects, a microcontroller to process sensor signals, and vibration motors to deliver proportional haptic alerts. Signal processing techniques are employed to ensure accurate distance measurement and noise reduction in dynamic outdoor environments. The glove is lightweight, low-cost, and operates reliably in both indoor and outdoor conditions. Experimental testing demonstrates that the system can detect obstacles within a range of 2 to 200 cm with high consistency, providing timely tactile feedback to support safe navigation. This work offers an effective assistive solution to enhance mobility, awareness, and independence for visually impaired individuals.