Researchers from Spain’s University of Rovira i Virgili have developed a prototype system to track drivers’ focus on the road. The setup uses a compact radar mounted on the sun visor and two frequency-selective surfaces (FSS) attached to the sides of the driver’s headrest.
How It Works
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The radar emits electromagnetic waves, and the FSS alters the reflected signal, enabling the system to precisely detect head orientation.
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If the driver becomes distracted, changes in head movement patterns trigger the algorithm.
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Testing confirms the system accurately assesses attention levels by analyzing head-turn frequency.
Advantages Over Existing Tech
✅ No cameras needed – Works in all lighting conditions and preserves privacy (no image recording).
✅ Low computational demand – Runs on an inexpensive microprocessor, keeping costs down.
✅ Resists interference – Unlike ultrasonic sensors, it’s unaffected by ambient noise.
✅ Energy-efficient design – Optimized for minimal power consumption.