Abstract
The Internet of Things (IoT) allows machines and devices in the world to connect with each other and generate a huge amount of data, which has a great potential to provide useful knowledge across service domains. Combining the context of IoT with semantic technologies, we can build integrated semantic systems to support semantic interoperability. In this paper, we propose an integrated semantic service platform (ISSP) to support ontological models in various IoT-based service domains of a smart city. In particular, we address three main problems for providing integrated semantic services together with IoT systems: semantic discovery, dynamic semantic representation, and semantic data repository for IoT resources. To show the feasibility of the ISSP, we develop a prototype service for a smart office using the ISSP, which can provide a preset, personalized office environment by interpreting user text input via a smartphone. We also discuss a scenario to show how the ISSP-based method would help build a smart city, where services in each service domain can discover and exploit IoT resources that are wanted across domains. We expect that our method could eventually contribute to providing people in a smart city with more integrated, comprehensive services based on semantic interoperability.
Highlights
The term Internet of Things (IoT), coined by Ashton in 1999 [1], has been a growing technological trend in recent years
We develop a web-based authoring tool to create an ontology for each service domain, an IoT-based service integration ontology (IIO) as a top-level ontology to store and handle the ontologies created by the web-based authoring tool and a semantic descriptor for semantic translation of IoT resources used in each service domain
We have presented an integrated semantic service platform (ISSP) to support ontological models in various IoT-based service domains
Summary
The term Internet of Things (IoT), coined by Ashton in 1999 [1], has been a growing technological trend in recent years. Things in the world will be able to share the information about the status change in their environment and become smart and reactive to external stimuli, eventually enabling one to create useful applications in various service domains [9,10,11,12]. IoT could be a key to unlocking the potential for providing integrated services across domains in a smart city. Due to existing vertical service architectures in a smart city, as, it has been difficult for services in each domain to discover and exploit resources in a city across service domains. IoT service architectures are evolving to horizontal service architectures from existing vertical service architectures in a smart city
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