EE TIMES EUROPE — Researchers at the Munich Technical University (TUM) have developed a method for driver assistance systems in vehicles to identify pedestrians and cyclists, even if they are obscured by large obstacles. In the scheme devised by the Munich scientists, mobile handsets carried by the pedestrians and cyclists assume the function of a transponder.
It is a nightmare scenario but quite common: A vehicles rolls along through a residential area at low speed, but roadside obstacles -- advertising columns, parking trailers, garbage containers, and the like -- block the view to the sides. Suddenly, a pedestrian appears behind such an obstacle on a collision course with the car. In this case, the assistant system has triggered the brake in time, and the vehicle comes to a stop before it hits the pedestrian.
"The new sensor system precalculates the trajectories of pedestrians," says Technische Universitaet Muenchen.
(Source: Technische Universitaet Muenchen/Image: Ko-TAG)
The brake could be activated in this case because the pedestrian was equipped with a transponder, a combined of a radio receiver and transmitter which replies to certain specific signals -- in this case, to a pedestrian identification system in the approaching vehicle. To determine the exact location of the pedestrian, the system measures the distance and direction of the person relative to the car.
Story continues on EE Times Europe.
— Christoph Hammerschmidt writes for EE Times Europe.