IEEE Electrification Magazine - September 2017 - 34
involves a cluster of closely connected nodes rather than
a remote park of servers.
Collaborative control philosophies, where the operator
is no longer needed for system coordination and collaborative control, will become possible as information is made
available and accessible in the fog through publish/subscribe patterns, as illustrated in Figure 1. An example of
such collaborative control is interaction between the
shipboard power plant and the dynamic positioning (DP)
system in the process of planning the vessel's power production relative to the operation and the environmental
forces of wind, waves, and currents. The collaborative control would initiate the need for fast reconfiguration of
the shipboard power system, where the existing setup
with interconnected microgrid segments will need to change
to islanded microgrid segments, where some segments
sel
Die
Eng
ine
ter
s
IO
Interface
Tan
kS
Alarm
System
ens
ors
IO
Interface
Valves
Diagnosis
Cargo
IO
Interface
IO
Interface
GUI
GUI
Pumps
Miscellaneous
ors
rat
ne
Ge
Th
rus
contain elements for energy storage. This configuration
change will be crucial for increased efficiency for a given
operation, and a huge amount of data will be needed in
the control system strategy to ensure continuation of vital
power supply during error-prone situations.
Another example is ship-to-ship and ship-to-shore
communication, which benefits from a fog-based system
and communication architecture for efficient coordination
and surveillance of ships in a fleet management system.
Such system collaborations, backed on a proper system and
communication architecture, give birth to new innovations
and business models and are important steps toward the
realization of autonomous ships. This control platform
trend is based on the Industrial Internet of Things (IIoT)
philosophy, with standardized communication layers, such
as a data distribution service (DDS).
PMS
GUI
GUI
ms
PS
Propulsion
Tra
fo
ste
Sy
IO
Interface
IO
Interface
SB
Propulsion
Data
Logger
IO
Interface
IO
Interface
Se
ors
s
ive
Dr
ns
Electrical Motors
Figure 1. A shipboard fog-based IIoT architecture, where data are distributed through publish/subscribe patterns. GUI: graphical user interface;
IO: input/output signal; SB: starboard side; PS: port side.
34
I E E E E l e c t r i f i c ati o n M agaz ine / SEPTEMBER 2017
Table of Contents for the Digital Edition of IEEE Electrification Magazine - September 2017
IEEE Electrification Magazine - September 2017 - Cover1
IEEE Electrification Magazine - September 2017 - Cover2
IEEE Electrification Magazine - September 2017 - 1
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IEEE Electrification Magazine - September 2017 - Cover3
IEEE Electrification Magazine - September 2017 - Cover4
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https://www.nxtbook.com/nxtbooks/pes/electrification_march2022
https://www.nxtbook.com/nxtbooks/pes/electrification_december2021
https://www.nxtbook.com/nxtbooks/pes/electrification_september2021
https://www.nxtbook.com/nxtbooks/pes/electrification_june2021
https://www.nxtbook.com/nxtbooks/pes/electrification_march2021
https://www.nxtbook.com/nxtbooks/pes/electrification_december2020
https://www.nxtbook.com/nxtbooks/pes/electrification_september2020
https://www.nxtbook.com/nxtbooks/pes/electrification_june2020
https://www.nxtbook.com/nxtbooks/pes/electrification_march2020
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https://www.nxtbook.com/nxtbooks/pes/electrification_september2019
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https://www.nxtbook.com/nxtbooks/pes/electrification_march2019
https://www.nxtbook.com/nxtbooks/pes/electrification_december2018
https://www.nxtbook.com/nxtbooks/pes/electrification_september2018
https://www.nxtbook.com/nxtbooks/pes/electrification_june2018
https://www.nxtbook.com/nxtbooks/pes/electrification_december2017
https://www.nxtbook.com/nxtbooks/pes/electrification_september2017
https://www.nxtbook.com/nxtbooks/pes/electrification_march2018
https://www.nxtbook.com/nxtbooks/pes/electrification_june2017
https://www.nxtbook.com/nxtbooks/pes/electrification_march2017
https://www.nxtbook.com/nxtbooks/pes/electrification_june2016
https://www.nxtbook.com/nxtbooks/pes/electrification_december2016
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https://www.nxtbook.com/nxtbooks/pes/electrification_march2016
https://www.nxtbook.com/nxtbooks/pes/electrification_march2015
https://www.nxtbook.com/nxtbooks/pes/electrification_june2015
https://www.nxtbook.com/nxtbooks/pes/electrification_september2015
https://www.nxtbook.com/nxtbooks/pes/electrification_march2014
https://www.nxtbook.com/nxtbooks/pes/electrification_june2014
https://www.nxtbook.com/nxtbooks/pes/electrification_september2014
https://www.nxtbook.com/nxtbooks/pes/electrification_december2014
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