Low-cost smart blind cane and glasses with multi-level obstacle sensing, emergency alerts, and smart home integration

<b>Conclusion</b>: The proposed Smart Blind Stick and Glasses system offers an affordable, redundant, and modular assistive technology solution with multi-level sensing, dual-mode audio feedback, emergency notification capability, and smart home integration. The findings support feasibility for real-world use and motivate future work involving expanded user studies and advanced sensing/AI-based upgrades.