关键词: NB-IoT, 无线移动通信技术, 业务云管端, 智慧城市, 公共产业, 农业与环境, 安全

Abstract: NB-IoT (Narrow-Band Internet of Things) is based on cellular networks and plays an important role in the current development of the Internet of Things. The article first briefly introduces the concept of NB-IoT, and highlights the characteristics of NB-IoT by comparing with other IoT wireless mobile communitcation technologies. Based on the “cloud-pipe-end” structure of the IoT, the “business-cloud-pipe-end” structure of NB-IoT is proposed. Three applications including smart city, public industry, agriculture and environment are taken as examples to analyze the specific application of NB-IoT. And the paper explains the wide range of applications of NB-IoT. According to the structure of NB-IoT, the NB-IoT security protection framework can be divided into four levels: Terminal security, network security, cloud security and business security. Finally, this paper summarizes the problems faced inthe development of NB-IoT technology.

Key words: NB-IoT, wireless mobile communication technology, business-cloud-pipe-end, smart city, public industry, agriculture and environment, security