TU-TESL

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According to foreign media reports, guardian optical technologies announced that its sensors have added new safety features to monitor the driver's eyelid opening (to determine whether there is micro sleep), steering wheel grip, and interaction with the entertainment system. Guardian integrates a variety of security applications on a single sensor, providing comprehensive security solutions for car manufacturers and OEMs. (photo source: Guardian official website) microsleep refers to a few seconds of sleep, which people do not realize at all, usually occurs in monotonous work such as driving. Guardian's sensors can measure the opening degree and opening time of the driver's eyelids to determine the micro sleep state during driving. One sign of microsleep is that the driver's eyelids are closed for 0.4 seconds or more. In addition, the sensor can detect the driver's grip on the steering wheel to determine whether the driver holds the steering wheel tightly. According to NHTSA's survey, "crash statistics show that steering wheel control errors are the main cause of drivers rushing out of the road." Guardian's high-resolution sensors can locate the position and posture of specific fingers, reminding the driver to hold the steering wheel with both hands. The technology also allows the vehicle to realize whether the driver holds the steering wheel in accordance with lane keeping assist, which requires the driver to hold the steering wheel in a non fully autonomous vehicle. The sensor also detects people using the in car entertainment system to detect interference to the driver. In addition, the sensor senses people using the entertainment system, enabling more advanced features. For example, adjust the seat and temperature for the people in the car, disable or enable the personalization function, such as disable the SMS function for the driver, or enable the navigation function for the passengers. Guardian uses low-cost vehicle level sensors, combines video image recognition (2D) and depth mapping (3D) with optical micro and macro motion analysis to continuously scan and track all passengers and objects in the vehicle. The sensor can identify the location and physical size of each person in the car, and distinguish people from objects. In some cases, the system can also detect micro vibration and perceive objects beyond the range of line of sight.