What is driver fatigue?

Fatigue plays a major factor in crashes in the UK, one study found that 1 in 6 crashes resulting in death or injury on major roads are fatigue related. It is reported that about 40% of professional drivers, especially HGV drivers report increased levels of sleepiness which can result in a disproportionately high number of fatigue related accidents.

Fatigue related accidents can occur when commercial drivers have a lack of stimulation. The most common roads where this is likely to happen are motorways and dual carriageways. Sleepiness reduces reaction time, alertness and concentration which severely affects the driver’s ability to process information quickly enough.

Some common warning signs of fatigue includes – increased difficulty concentrating, yawning and heavy eyelids. These are signs of micro sleep. This is when the driver nods off for between 2-30 seconds without realising.

Factors that contribute to driver tiredness are;

  • Lack of sleep/disturbed sleep

  • Time of day (2am-6am and 2pm-4pm)

  • Alcohol

  • Irregular sleep patterns

  • Driving for long periods of time

  • Medication that causes drowsiness





Safety Shield Driver Fatigue uses an automotive-grade image sensor to capture infrared images. It is built with a Pentium II high-speed digital signal processor to analyse and judge whether a driver is driving in fatigue or distraction state or not.

With an advanced sophisticated algorithm and non-contact mode, the Safety Shield Driver Fatigue system can accurately detect a driver’s real fatigue and distraction state in all weather conditions either with or without glasses or sunglasses. Its early warning saves drivers lives and protects company property.

The system is very effective for all vehicles and it provides an early warning for fatigue or any form of distraction whilst a person is in control of the vehicle. It identifies the difference between real distraction and fatigue which will effectively improve false warnings. The Safety Shield Driver Fatigue can work at any time of the day as the face fatigue recognition isn’t affected by darkness or high light intensity, requires no contact for detection and is suitable for all types of vehicles.

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The Safety Shield Driver Fatigue is very easily installed and does not require trained specialist installers. The actual position of the camera can be placed anywhere in the cab providing that it can see the face of the driver.

The Safety Shield Driver Fatigue is developed for commercial vehicle fleets and plant. Additional to providing a warning alert in cab, the alert can also be outputted via a vibrating cushion or seatbelt. It can also be integrated with the ‘Safety Shield Fleet Management and MyAlert!’ software to output “fatigue” which will help driver managers to monitor the health and wellbeing of their drivers.