China's Xiaomi develops real-time car warning system for speed difference

China’s Xiaomi has developed a patented real-time driver-assist system that warns motorists when their speed differs dangerously from surrounding traffic, aiming to reduce collision risks caused by speed mismatches rather than just legal speeding. Unlike traditional speed monitoring systems that alert drivers only when exceeding speed limits, Xiaomi’s technology continuously analyzes sensor data to assess a vehicle’s speed relative to nearby objects, such as other cars. When this relative speed surpasses a dynamic threshold—adjusted based on the driving environment like school zones or highways—the system issues timely warnings to encourage drivers to adjust their speed and enhance road safety. The system’s innovation lies in its adaptive approach: it lowers alert thresholds in densely populated or sensitive areas where traffic naturally slows, while allowing higher thresholds on highways, thus addressing hidden safety risks that fixed speed limit alerts miss. Additionally, Xiaomi’s patent proposes a flexible alert delivery mechanism, including visual notifications on the vehicle’s central screen and text-to-speech prompts, ensuring drivers receive clear and immediate warnings even if distracted.