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
IEEE Electrification Magazine - September 2017 - 2
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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_september2022
https://www.nxtbook.com/nxtbooks/pes/electrification_june2022
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
https://www.nxtbook.com/nxtbooks/pes/electrification_december2019
https://www.nxtbook.com/nxtbooks/pes/electrification_september2019
https://www.nxtbook.com/nxtbooks/pes/electrification_june2019
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
https://www.nxtbook.com/nxtbooks/pes/electrification_september2016
https://www.nxtbook.com/nxtbooks/pes/electrification_december2015
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
https://www.nxtbook.com/nxtbooks/pes/electrification_december2013
https://www.nxtbook.com/nxtbooks/pes/electrification_september2013
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