BMW 2012 5 Series - Manual (Page 135)

Heat image
The image shows the heat radiated by objects
in the field of view of the camera.
Warm objects have a light appearance and cold
objects, a dark appearance.
The ability to detect an object depends on the
temperature difference between the object and
the background and on the level of heat radiation
emitted by the object. Objects that are similar in
temperature to the environment or that radiate
very little heat are difficult to detect.
For safety reasons, when driving at speeds
above approx. 3 mph/5 km/h and in low ambient
light, the image is only displayed when the low
beams are switched on.
A still image is displayed at regular intervals for
a fraction of a second.
Pedestrian detection
The pedestrian detection and warning system
only operates in darkness and only when a heat
image is displayed.
Warm objects that are similar in shape to human
beings are detected by the system.
People detected by the system are displayed
with a slight yellow hue.
Under good ambient conditions, the pedestrian
detection system operates within a range of ap‐
prox. 50 ft/15 m to approx. 330 ft/100 m.
Environmental influences can limit the availabil‐
ity of pedestrian detection.
If pedestrian detection is not available, a symbol
is displayed in the heat image.
This symbol disappears when the function be‐
comes available again.
Warning of people in danger
If the system detects a person in the defined
area in front of the vehicle and if there is the dan‐
ger of a collision with this person, a warning
symbol appears in the Control Display and
Head-up Display.
Although both the shape and the heat radiation
are analyzed, false warnings cannot be ruled out.
Seite 135
Driving comfort Controls
135
Online Edition for Part no. 01 40 2 607 879 - 09 11 490