Tech Briefs Magazine - February 2023 - ST13

dimmed from 100 percent all the way
down to one percent to take advantage
of ambient daylight, while maintaining
a constant light level in the
room - daylight harvesting.
* HVAC can be adjusted based on the
number of occupants.
Who Should Invest?
It's certainly doable, and extremely
wise, to build a PoE network based on
lighting control if you're erecting a
new building.
It also makes sense if you're doing a
deep retrofit, where you're renovating
and replacing building systems with the
goal of reducing energy consumption.
Why Should I Invest?
Figure 3. Inspextor's PoE software uses AI to generate energy savings recommendations for
enhanced sustainability. (Image: MHT Lighting)
Communication and Power Network
PoE Switch
PoE Network Architecture
LAN Network
Dashboard
if you're a brand-new building owner
you should look to future-proof the
building. You are going to be locked
into whatever systems you install now
for at least 10-12 years.
There are some really good reasons
PoE Sensors
PoE Drive Node
OR
0-10V for
Sensor Control
PoE
Splitters
PoE
Wall
Switch
Internal Node
Full port
availability
Two 4 Port Splitters connected
to seperate ports on external node
Internal Node
master luminare
OR
Mains Voltage
Remote node providing
0-10V luminaire control
capability for a mains
luminaire, connected
to a peripheral
PoE senssor
to install PoE lighting systems.
* It reduces the time and expense of
having electrical power cabling installed.
Network cables do not require
a qualified electrician to fit
them and can be located anywhere.
* Without being tethered to an electrical
outlet, devices such as IP cameras
and wireless access points can be located
wherever they are needed most
and repositioned easily if required.
Figure 4. Inspextor PoE software utilizes a PoE backbone to power and control connected devices.
(Image: MHT Lighting)
* A building manager can gain insights
into space utilization and peak occupancy
over day, week, month, year,
and then adjust the lighting policies
programmed into the platform as well
as policies for other building systems.
An added benefit is that the policies
can also be used to improve employees'
work environment.
* The artificial intelligence can learn
habits and frequent operations of the
building and make small incremental
adjustments on its own. It can recognize
patterns, and adjust lumen output
based on forecasts of occupancy or
measurements of ambient light level.
Sensor Technology, February 2023
Occupancy
Lighting-mounted sensors can detect
whether a conference room is occupied
- and with a thermal occupancy sensor in
each corner of the room, it can even anonymously
detect the number of occupants.
* If the room is unoccupied, the most
obvious action will be to turn off
lights.
* If the room is unoccupied, that information
can direct networked motorized
window shades to darken the
room to reduce the load on the HVAC
system.
* With the addition of light level sensors,
the LEDs can be automatically
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* PoE delivery is intelligent and designed
to protect network equipment
from overload, underpowering,
or incorrect installation.
* PoE power comes from a central and
universally compatible source rather
than a collection of distributed wall
adapters. It can be backed up by an uninterruptible
power supply or controlled
to easily disable or reset devices.
* Having power available on the network
means that installation and distribution
of network connections is simple
and effective.
* Once the network is in place it is relatively
easy to add new systems - to incorporate
future technologies that become
available.
* Use of PoE will ease the way to participating
in utility demand response
(DR) programs.
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Tech Briefs Magazine - February 2023

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