The ring that wakes you up.
The built-in sensors of this device, which you wear on two fingers of your hand, monitors driver awareness and alerts at the first signs of a drop in concentration and awareness.

Its sporty looks might suggest that this device measures your heart rate or the number of calories burned during an exercise routine. In fact, the StopSleep ring monitors a driver’s awareness, and if the driver starts to lose their concentration it will alert them immediately via a built-in vibrating alarm and beeper. StopSleep weighs only 20g, and is available through 2KD France. It allows motorists to monitor their own level of concentration and fatigue, before the first physical signs occur: itchy eyes, stiffening of the neck, glazed eyes and heavy eyelids. A danger to be taken very seriously, driver fatigue is responsible for one in three fatal accidents on the highway and increases the risk of accidents in general by eight times.

Two warning levels
This rechargeable ring, is worn between index and middle fingers on either hand. Its eight sensors calculate electrodermal activity (Electrical activity recorded at the surface of the skin), which actually reflects brain activity. "It's the same principle of that used by lie detectors. When a person lies, the activity of the brain registers ‘peaks’, as his electrodermal activity increases. At StopSleep, we measure the ‘downturns’ "says John Toquet, co-founder of 2KD France.

StopSleep, whose effectiveness has been tested by the National Centre for Scientific Research, has a two stage alarm system. The first stage comes in the form of a vibration and will alert you if your awareness and concentration has reduced, this is sometimes so subtle you may not have even noticed until StopSleep alerts. The second alert is more serious and combines the vibration with a loud beep indicating that your awareness and concentration had dropped significantly. As this point "It is strongly advised you stop," said John Toquet. However even if your StopSleep did not beep, remember to take at least a fifteen minute break for every two hours of driving.

Other devices, such as the onboard camera system - which calculates the blinking of the eyelids on the Ford Focus - or Attention Assist system from Mercedes-Benz - studying the trajectory of the vehicle – are also used to assess the risk of drowsiness, but StopSleep ring has the advantage that it can be taken from vehicle to vehicle and used in a number of different circumstances. 2KD France also points out that the ring "could also be used for people whose profession requires great concentration” says John Toquet. “In particular, air traffic controllers and the military” We tested it during a working day: it vibrated after three hours !