<p>➀ In-cabin sensing technologies (DMS/OMS) use infrared cameras, radar, and torque sensors to monitor driver behavior and passenger status for enhanced safety;</p><p>➁ Key challenges include sensor integration costs, algorithm reliability under varied conditions, and addressing privacy concerns with occupant monitoring;</p><p>➂ Tesla's adoption demonstrates practical applications, such as rear-seat child detection via 60GHz radar, driving industry innovation.</p>