Internet of Things Platform as a Service for Building Digital Twins and Blockchain

The growth of the Internet of Things (IoT) technology stimulates the growth of the IoT platforms used for developing, managing, controlling, and monitoring physical devices. Many companies have developed physical devices that are ready to use along with an IoT platform. However, it is hard to integrate it with other physical devices from different platforms and other technologies such as blockchain and digital twins (DT). This paper proposes a conceptual model of a new IoT platform architecture with high interoperability and flexibility to connect with other technologies, such as blockchain and digital twins. We analyzed and compared several IoT platforms based on the seven layers architecture to identify the functionality gaps. The gaps are the basis of developing the new IoT platform architecture.