Safe Distance Warning

Concept Description

The main stept of how this feature works are:

1. SDW algorithm is scanning the road ahead and is detecting the locations of other cars 2. Due to the calibration procedure we are accurately detecting which of the detected cars are in a frontal position related to your car (on the same lane) and filter out cars placed on other lanes. 3. We approximate the distance to the closest car in front of you into 4 categories: extremely close frontal vehicle, close frontal vehicle, midrange frontal vehicle, far-mid range frontal vehicle. 4. Knowing your car current speed (from GPS) and distance to the closest car in front we can determine if you are keeping a safe distance to the car in front or not.

Trigger Conditions

Most of the data regarding speed and safe distance in the literature are highly exaggerated to be applied in a real traffic environment (most of them consider that the vehicle in front will suddenly freeze and calculate the distance that you have to keep considering your speed so that your braking time will be enough (driver reaction time + maximum braking distance). Also, there can be taken into account many car characteristics like cars mass, braking system, tire type, tire conditions, state of the road (icy, wet, dry, etc.). In the future we can implement a system that will use multiple parameters to calculate the speed- distance condition. Now we are using a trigger system based on real-life tests.