VEHICLE SAFETY
APS-SUPPLY.COM
www.aps-supply.com
APS USA
610 Gateway Center Way, Suites J & K
San Diego, CA 92102 USA
P: 1 619 263 4164
F: 1 619 263 6814
APS Australia
Unit 1, 72 Kent Way
Malaga WA 6090 Australia
P: 61 (8) 9248 4419
F: 61 (8) 9248 4901
APS: Singapore
Colombia
Chile
Perú
Brasil
Object Detection Capability
The PreView® Side Defender™ radar system is a blind spot collision warning
system designed to supplement other safety practices and/or devices. The
machine operator is always the first line of defense when safely operating
a vehicle. The person or owner responsible for the equipment must ensure
that all operators understand the installation, operation, limitations and
safe use of the system.
The Side Defender™ radar sensor can detect most objects within the detection
zone. However, there are some instances where objects can go undetected.
Obstacle size, shape, relative location, and composition are all factors determining
if, when, and where an object is detected. The Side Defender™ Radar sensor
operates by transmitting low power electromagnetic energy. Any energy that
strikes an object reflects a certain amount of this energy back to the radar sensor
of the Side Defender™ Radar. If the returned energy is of sufficient magnitude, it
is used to indicate the presence of an object and determine the object’s distance.
While the radar sensor of the Side Defender™ Radar can resolve multiple objects,
only the object closest to the vehicle is reported to the operator display since it
represents the most significant collision threat.
The amount of energy returned is based on a few factors:
Size – a larger object usually reflects more energy than a smaller object.
Composition – a metal object typically reflects more energy than a non-
metallic object. A metallic object at the edge of the maximum detection zone
might be detected, whereas a wood object may not.
Scattering – a solid object reflects more energy than a non-solid object such
as tree branches, gravel, bushes, etc.
Shape – complex shapes cause energy to be returned in a very non-uniform
way. Very small variations or movement can change detection status.
Angle – an object that that is flat-side perpendicular to the sensor will reflect
more energy than an object at an angle. See below for an example of how
angle can affect returned energy.
