TOKYO - Several manufacturers already make gauges for driver sleepiness. But working with observing eyes open. According to experts Denso, this way only can determine drowsiness of driver only after being on a particular label.
For the system he developed, Denso claims can detect driver's drowsiness level is still low.
Although interesting, according to Nikkei, Denso not sure when it will begin to commercialize this technology. However, if mass produced, other aspects are taken into account is the influence of ambient light, such as the scorching rays and uses infrared cameras united into system to photograph in the face of the driver at night.
Denso Corp.. demonstrate a prototype system that measures the level or condition of the driver drowsy and exhibited at the TMS 2011yang continues today. Component consists of a set of cameras that are placed on the steering column and used to photograph the driver's face. Furthermore, the level or drowsy condition is determined based on the driver's facial expressions.
The system determines the level of sleepiness by observing facial muscle activity of three kinds, namely frontal belly (forehead), the orbicularis oculi (eyelid muscles) and Greater (cheek)) at 9 points on the driver's face. Denso said, there is a correlation between sleep and the amount of muscle activity.
In particular, the system releases 17 points of the face image and determine the amount of muscle activity to calculate the level of sleepiness on a scale of one to six.
