Alpine iLX-W670 - Page 41

41-EN
Distance guidance mark
e distance guides represent the ground level distance from the rear
bumper. It is dicult to accurately estimate the distance to objects above
ground level.
In the following example, the distance to A is 0.5 m and the distance to
B is 1 m.
<Screen>
A (about 0.5 m)
B
C
<Positions of A, B and C>
about 1 m
In the screen, according to the distance guidance marks, the
truck seems to be parked about 1 m away (at the position
B). In actual fact, however, if you reversed to position A, you
would collide with the truck.
In the screen, positions A, B and C seem to be located in
order of proximity. However, in actual fact, the position
A and C are the same distance, and B is farther away than
positions A and C.
•
e car width extension mark represents the distance to the road
surface. e distance to an object on the road is not accurately
represented by the guides.
Error between the screen and the actual road surface
In the following conditions, errors are produced between the screen
guidance and the actual road surface. (e illustrations represent a case
when the camera is installed in the standard position.)
When there is a steep upward slope behind the car
(example)
<Screen>
Distance guidance marks
<Situation of the car>
Actual distances
Error Error
The distance guidance mark represents the distance to a
at road surface. Therefore in the case of an upward slope
behind the car, the distance guides are displayed closer
to the rear bumper than the actual distance. For example,
if there is an obstacle on the upward slope, it may appear
farther away than its actual position.
Also, an error may occur between the guidance and the
actual path of the car on the road surface.
When there is a steep downward slope behind the car
(example)
<Screen>
<Situation of the car>
Error Error
In the case of a downward slope behind the car, the distance
guides are displayed farther from the rear bumper than the
actual distance.
If there is an obstacle on the downward slope, it seems closer
than its actual position.
Also, an error may occur between the guidance and the
actual path of the car on the road surface.