What is DAC? ..............

DAC is the abbreviation of driver alert control system developed by Volvo Car Company. Research shows that up to 90% of traffic accidents are caused by drivers' distraction. According to the above accident statistics, Volvo Car Company has developed an efficient technology: driver alert control, which can help drivers avoid accidents caused by excessive fatigue and distraction. This world-first technology can record the driving situation of cars on the road and warn distracted drivers to avoid or reduce the occurrence of fatigue driving accidents.

Technically, the driver warning control system consists of a camera, several sensors and a control unit. The camera is installed between the windshield and the rearview mirror in the car to continuously measure the distance between the car and the lane sign; The sensor records the movement of the car; The control unit stores this information and calculates whether there is a danger that the car is out of control. If the evaluation result is high risk, the driver will be warned by sound signal. In addition, a short message will be displayed on the dashboard to remind the driver to rest with the symbol of coffee cup. When the vehicle enters a straight and flat road that is easy for the driver to enter a relaxed state and an environment that is easy for the driver to be distracted and take a nap, and when the speed exceeds 60 km/h, the system is activated; When the vehicle speed exceeds 65km/h, the system starts to intervene.