TITLE:
Evaluation on Information Model about Sensors Featured by Relationships to Measured Structural Objects
AUTHORS:
Shinji Kikuchi, Akihito Nakamura, Daishi Yoshino
KEYWORDS:
Sensor, Information Model, Ontology, Semantic Integration, Data Aggregation
JOURNAL NAME:
Advances in Internet of Things,
Vol.6 No.3,
July
29,
2016
ABSTRACT: In accordance with the requirements of expanding Machine-To-Machine
communication (M2M), the network overlay is in progress in several domains such
as Smart Grid. Consequently, it is predictable that opportunities and cases of
integrating yielded data from devices such as sensors will increase more.
Accordingly, the importance of Ontology and Information Models (IM) which normalize
the semantics including sensor expressions, have increased, and the standards
of these definitions have been more important as well. So far, there have been
multiple initiatives for standardizing the Ontology and IM in regards to the
sensors expression such as Sensor Standards Harmonization by the National
Institute of Standards and Technology (NIST), W3C Semantic Sensor Network (SSN)
and the recent W3C IoT-Lite Ontology. However, there is still room to improve
the current level of the Ontology and IM on the viewpoint of the implementing
structure. This paper presents a set of IMs on abstract sensors and contexts in
regards to the phenomenon around these sensors from the point of view of a
structure implementing these specified sensors. As several previous studies
have pointed out, multiple aspects on the sensors should be modeled. Accordingly,
multiple sets of Ontology and IM on these sensors should be defined. Our study
has intended to clarify the relationship between configurations and physical
measured quantities of the structures implementing a set of sensors. Up to
present, they have not been generalized and have remained unformulated.
Consequently, due to the result of this analysis, it is expected to implement a
more generalized translator module easily, which aggregates the measured data
from the sensors on the middleware level managing these Ontology and IM,
instead of the layer of user application programs.