Technology Profile |
Next generation
sensors
The requirements for traffic
management sensors are
constantly changing. In the
past it was enough to offer a
reliable stop bar detection, but
expectations today have since
risen in many respects.
Authorities are focused on
reducing cost and searching
for ways to satisfy the needs
of a smart city. Increasing safety,
especially for vulnerable road
users, reducing carbon
emissions, as well as collecting
and sharing data are the most
important topics these days.
Product revision
In order to satisfy these growing
demands, smartmicro
fundamentally revised its
premium product line. The
sensor will be available with
two different hardware options.
The radar only version TRUGRD
and the version with an
integrated camera, the TRUGRD
Stream. This latter option
provides traffic operators with
a live video stream from the site
to the traffic operation centre.
With this future-proof platform
combining radar and video,
detection accuracy is able to
improve significantly.
While the footprint is not
changed in comparison to the
predecessor model UMRR-0C,
the technical capabilities are
highly improved. The sensor
comes with 4D/UHD+
resolution. It precisely measures
the position, lane and speed
vector, as well as the elevation
of the objects in the field of
view. Thanks to completely
new digital signal processing
and antenna design, the
performance in dense traffic
scenarios is further improved.
By detecting all moving and
stopped objects including
pedestrians and bicycles, it is
now possible to maximise traffic
flow. An optimized surface
| Need to know
The revised premium
product line from
smartmicro
060 Traffic Technology International March/April 2020
www.TrafficTechnologyToday.com
in a radar, that is barely
disturbed by other interferences
on the same frequency band.
All-in-one solution
A modern sensor can deliver
an all-in-one traffic management
solution that provides big data
for smart cities including V2I
communication. A single device
from smartmicro, for example,
provides all data a traffic
manager could dream of: it
precisely measures the position,
lane and speed vector as well
as the elevation of the objects
in the field of view – on all
lanes. The radar can be used
simultaneously for adaptive
intersection control, as well
as collecting statistical data
including counting and object
classification. smartmicro radar
sensors can even be used for
various kind of enforcement
applications.
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sensor provides can be processed
according to individual needs.
Through the availability of
a communication library,
the efforts to integrate the
communication between
sensor and any subsystem
can be minimized. This saves
engineering efforts on both sides.
Diagnostic functions
New diagnostic functions are
introduced. When the sensor
detects heavy rain or a
snowstorm that may affect the
performance significantly, an
error message will be generated,
and the device will switch into
fail-safe mode to prevent
malfunction. This so-called
‘sensor blind’ function provides
a message that the sensor
performance is impaired to
make the user aware that the
function might be restricted
momentarily.
Another feature is the
detection of interference.
The feature sends a warning
if interferences through other
sensors occur. With the help
of the smartmicro interference
mitigation algorithm, the sensor
can still provide a stable
performance – this results
> Two hardware options
are TRUGRD (radar only)
and TRUGRD Stream
(includes an integrated
camera)
> Interference mitigation
algorithm alerts if other
sensors receive
interferences
Left: All moving
objects are detected
to maximise traffic
flow possibilities
treatment of the sensor
components allows deployments
in environmentally challenging
conditions like at the seaside.
Linux is the operating system
of the sensor. Therefore, the
platform is easily accessible
for various kinds of third-party
apps. For example, all data the
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