Fecha de publicación: 23/08/2022 Fuente: Wipo "IOT" The utility model provides an NB-IOT communication device. The NB-IOT communication device comprises a main control unit; and the NB-IOT communication module is connected with the main control unit and is used for communicating based on the narrowband Internet of Things under the control of the main control unit. The NB-IOT communication device provided by the utility model can realize stable and reliable NB-IOT communication, and is simple in structure and easy to maintain.