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LIGHTING 9
light output accordingly. This not only saves
energy, but also provides Amstein + Walthert
with information about which areas are
frequented how often: a database that can
be used to reliably estimate future space
requirements and to increase the efficiency
of spaces.

“Demand is coming particularly from
companies who need a lot of space for
their employees,” says Ian Abegglen from
Zumtobel. “The current rule of thumb is that
0.8 desks are needed per employee. Due
to increased digitalisation and established
home office concepts, this has changed
significantly. Now companies need to find out
how much space they actually need in the
light of these new work models. Our surveys
help them decide whether and how they will
use their office areas in the future.”
Data as the starting point for further
applications Using the smart building infrastructure, a
continuous energy monitoring system can
be created or a reservation system can be set
up for workplaces and meeting rooms, for
example. Presence data can also be used to
set up a smart cleaning system, in which only
the workplaces or areas that have actually
been used are cleaned. And with the help of
the asset tracking function, office equipment
such as flip charts or projectors can always be
located. It is also possible to set up an indoor
navigation system that allows people to find
their way quickly and easily in an unfamiliar
environment. According to Ralph Schmid, the important
question for Amstein + Walthert was
whether the information from the building
infrastructure could also be easily transferred
to downstream platforms such as booking
systems. “Our customers want to remain
in possession of their data – and be able to
use it whatever the platform. We have been
able to achieve this thanks to Zumtobel’s
infrastructure.” From digital twin to real benefit
In order to integrate the showcase as
seamlessly as possible into the ongoing office
operations in the Andreasturm, Amstein +
Walthert kept its employees fully updated
at all times. “Communicating well was
very important to us in helping to keep our
colleagues on board,” says Senior Project
Manager Ralph Schmid. After the installation,
operations continued smoothly: “It felt as if
that’s the way it had always been.”
The basis for Zumtobel’s installation was a
3D scan of the premises: using a 3D scanner,
Amstein + Walthert scanned the entire floor
and produced a three-dimensional digital
model of the building (BIM model). The
model then served as a starting point for
Zumtobel’s project design, helping them
find the best positions for the sensors
and luminaires. Before the new building
infrastructure was approved for use in August
2021, the lighting designers from Reflexion
AG inspected the project design in the model
to ensure, for example, that brightness
requirements and standards had been met.

One system, numerous advantages:
Leveraging potential with smart building
infrastructure The use cases show only one small aspect
of the overall benefit of a smart building
infrastructure. “Our concept pays off at all
levels,” says Ian Abegglen from Zumtobel.

“Employees benefit from an optimal
work environment and convenient digital
applications such as workplace reservation
via app. Building owners and managers can
operate with increased energy efficiency and
cost savings. In light of the EU Green Deal –
the EU-wide aim of becoming climate-neutral
by 2050 – this is becoming increasingly
important.” There are also benefits for real
estate service providers: remote monitoring
enables technical maintenance work or
building cleaning to be planned and invoiced
as required.

“Our collaboration shows that the state-
of-the-art lighting solutions of today are
digital and IoT-ready,” sums up Ian Abegglen
from Zumtobel. “They make lighting and
the building environment measurable and
qualifiable, offering enormous potential for
improvements.” Now that the test phase
has been completed, Amstein + Walthert
and Zumtobel are making their combined
expertise available to interested companies.

After all, there is still some potential to be
tapped with the help of digital applications
throughout the building life cycle.

Photo credits: Faruk Pinjo