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Calterah's proposal at InCabin Europe 2026 represents a paradigm shift in automotive in-cabin sensing: rather than proliferating single-purpose sensors, the company repurposes the already-deployed UWB digital key infrastructure as a synchronized multi-static radar network. This communication-as-sens

This article explores the evolution and application of digital key technology in smart buildings, focusing on key radio technologies such as UWB and Bluetooth. From ancient locks to modern digital authentication systems, the progression from physical keys to wireless remote controls and secure digit