Design and Implementation of a Smart IoT Gateway

With rapid development of Internet of things (IoT), there exists an ever-growing demand for ubiquitous connectivity to integrate multiple heterogeneous networks, such as Zigbee Ad hoc network, wireless LAN, cable network, etc. Some typical applications including environmental monitoring, intelligent transportation, medical care, smart home, industry control, safety defense, etc. require a smart gateway to provide high data-rate, end-to-end connectivity utilizing the higher bandwidth of multi-hop networks among those heterogeneous networks. This paper proposes a novel configurable smart IoT gateway which has three important benefits. Firstly, the gateway has plug gable architecture, whose modules with different communication protocols can be customized and plugged in according to different networks. Secondly, it has unified external interfaces which are fit for flexible software development. Finally, it has flexible protocol to translate different sensor data into a uniform format. Compared with similar research, the gateway has better scalability, flexibility and lower cost.