Wednesday, August 30, 2000
Coming up in several new models, Nissan will introduce a
navigation system based on a bird's eye view of the maps. Traditional navigation
systems direct the driver through planer maps. Plane maps require switching from
wide, zoomed-out to detailed, zoomed-in versions of the mapping area,
potentially distracting the driver's view of the road.
"Our results showed that to make a safe navigation system we
needed to develop a system that would do both of these functions simultaneously,
so we came up with the BirdView idea," recalls Hiroshi Tsuda, director of
Intelligent Transportation Systems at Nissan.
BirdView™ places the driver's viewpoint at an altitude of 350M and
1 km behind the vehicle. This view creates a trapezoidal shape of 500M at the
bottom of the screen, 7 km at the top of the screen, and a spanning view of 7
km. The driver can see simultaneously a detailed view of the intersection at the
lower part of the screen for guidance on what turn to make, while the upper
portion of the screen displays a zoomed-out view so the driver can anticipate
the distance of the next intersection. For more information see http://www.nissan-driven.com.