ADAS Guide

Drowsiness Detection

What is drowsiness detection?

This form of ADAS uses an algorithm that records a drivers wheel steering behaviour to detect drowsiness in a driver. It then alerts the driver that they need a rest to continue driving safely.

A graphic demonstrating a Drowsiness Detection system

What does drowsiness detection do?

Drowsiness detection prevents deaths on the road, as 68 deaths were caused by drowsy driving in 2015 alone. By alerting the driver to take a rest, drivers are able to nap and have a coffee before getting back on the road, making them recharged enough to be driving again with ample concentration.

How does drowsiness detection work?

There are a variety of ways a car can detect when the driver is drowsy, including:

  • Image processing technology – a camera detects eye movement, yawns and general facial expressions to determine if the driver is tired or not.
  • Wheel steering monitoring – wheel steering behaviour is recorded to ensure the driver is paying attention.
  • Lane line detection – detects how effectively the driver is staying within the lines, and if they seem the waver regularly, an alert is activated.

Once the features determine the driver is drowsy, it alerts the driver to pull over.

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