| dc.description.abstract | In recent years, the concept of Internet of Things (IoT) attracts increasing attention from various fields as IoT devices support sensing capabilities to continuously monitor device status and surrounding environment as well as support tasking capabilities to achieve efficient and automatic remote control. Many potential IoT applications have been proposed, such as industry 4.0, connected vehicle, smart electricity grid, e-health, precision agriculture, and smart city. However, while an IoT architecture usually includes device layer, intermediate gateway layer, web service layer, and application layer, most existing systems are using proprietary solutions that follow different conceptual models, encodings, and service protocols. These proprietary systems cause heterogeneity issues that impede them to interoperate with other systems. To address this issue, following international open standards is necessary. However, while different standards usually aim to support different functionalities and use cases, communities focusing on different layers may already have their preferred standard solutions. Therefore, we argue that one of the solutions to achieve a comprehensive IoT architecture is by integrating existing standards to harness their advantages. In this study, we aim at integrating the oneM2M standard, which establishes a common service layer providing management functions for connected IoT devices, and the Open Geospatial Consortium (OGC) SensorThings API standard, which focuses on defining a complete IoT data model and flexible web service query interfaces. To achieve the integration, we propose a SensorThings API data model profile on oneM2M. This data model profile helps compose standardized and semantic-rich IoT data that can facilitate information exchange between devices and help establish automatic communication between oneM2M and SensorThings API standard solutions. In general, this integrated system helps achieve an open and interoperable IoT architecture, which can consequently facilitate IoT data transmission and integration. | en_US |