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"$,)-,$' ,*% -+!"$)-*%
"!'4 *'!'4 *% )/! +- 0'$4!+ -%.*"#$)-*% 5/!% +"-1-%
! $5$"! *. )/! &""*&%+-%> *. )/! 1!/-,'! 2!.*"! $%+ +&"-%
4 )!#(
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The system incorporates highly sensitive ultrasonic sensors and uses fuz
•
area is minimal and the
the distance from a sensor to the surface of the obstacle that reflects th
user must remember that the measured distance is influenced by the po
sensors, the shapes and locations of obstacles, the reflecting angle and
Therefore it is advisable to visually inspect the situation behind the vehi
Detection is not guaranteed in certain cases. A few examples:
•
31.07.2014
has a long detecting range. The detect
!.'!,)-*% $%>'!
Depending on the reflect
may be distorted.
Point
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Surface $ is closer to the
2, but surface 2 has a be
be detected first whereas
detected at all.
Point
is smooth and shiny and
2 )$,'! /!->/)
At first, the obstacle $
senor is detected. Howev
approaches the vehicle, i
stronger than that of $
warns about ,.
&".$,! *. *2 )$,'!
Obstacles that strongly a
waves e.g. sponge or cot
to detect. Due to absorpt
may only be detected wit
behind the vehicle.
7
"-1-%> )/! 1!/-,'!(
&"-%> & ! *. )/!
-%> $-+ 4 )!# - $,)-1!(
s fuzzy logic. The blind
tection result measures
s the waves. However, the
e positions of the installed
nd other factors.
ehicle before reversing.
lection angle, the reading
in this example m
le may not be detected.
the sensor than surface
a better reflection so it will
reas surface $ may not be
may not be detec
etected when the surface
and angle
$ which is below the
wever, when ,
le, its reflection becomes
$, so the system only
ly absorb ultrasonic sound
cotton fabrics are difficult
orption of clothes, persons
within a range of ±1.3m
F is large.
©Velleman nv
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