ELECTRONICS
76 iVT International Off-Highway 2020
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features, bringing about entirely new use-cases
and business models. TTControl’s Vision 3
display series and its set of interfaces combined
with TTControl’s IoT platform TTConnect
Cloud Service prepares mobile machinery for the
next level of connectivity.
Seamless integration
From a systems perspective, a modern operator
interface needs to be designed for seamless
integration into the electronic architecture of the
vehicle. The display’s communication interfaces
are also used to exchange data with the electronic
control units which control the vehicle and its
working functions. An example is TTControl’s latest
controller HY-TTC 590 that allows the use of the
CAN bus or the BroadR-Reach Ethernet interface.
Operator comfort and user experience
Operator comfort and a sophisticated user
experience (UX) are further requirements for an
innovative HMI in the world of modern mobile
machinery. TTControl’s Vision 3 displays feature
very fast boot-up times to ensure operator
comfort right from the start. To enable a highquality
user experience in line with modern
consumer devices, which are not rugged enough
for use in the off-highway sector, a large and
brilliant screen is essential. To fulfil these
expectations in terms of user experience,
TTControl has equipped their Vision 312
operator interface with a large, optically bonded
12.1in LCD screen with a high state-of-the-art
resolution of 1280 x 800 pixels and a wide
viewing angle. With a brightness of up to 1,000
cd/m², it ensures perfect sunlight readability.
The projective capacitive touchscreen enables
intuitive user inputs and can even be operated
with gloves.
The power to perform
Assistance systems and multimedia require
significant computational power. As a result
Vision 3 electronics are equipped with a 4-Core
CPU with an extensive memory. This powerful
CPU is paired with a sophisticated cooling
concept to ensure high computational power
under all environmental conditions. In addition,
it allows for the simultaneous display of up to
four camera streams and enables multimedia
features such as interactive operator manuals in
video format. For a full multimedia experience,
the integrated loudspeaker can also be used; for
less sophisticated applications, a variant with a
single-core CPU is available. When it comes to
different kinds of use-cases and to take full
advantage of the electronics, the Vision 3
operator interface is programmable with
CODESYS or alternatively with C/C++ and Qt.
Ready for the future
Despite all this change, there is one thing which
has not changed over the years and that is the
harsh environment off-highway machinery is
operated in. The extensive experience of
TTControl pays off when merging the world
of electronics, connectivity and operator comfort
and the world of the off-highway sector, with
extreme temperatures and unforeseen weather
conditions. We know that the best CPU
only achieves its high performance with
a sophisticated cooling concept and the best
communication interface only works reliably
in harsh environments with the right high-speed
connectors. Therefore, TTControl has designed
and optimized Vision 3 from the very first design
stage onwards for the harsh environment it
operates in. iVT
Author: Arno Purkrabek, team lead product manager,
TTControl
FIG. 1: Vision 3 display embedded
in the center of a complex
machinery systems architecture
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