Fecha de publicación: 05/11/2019 Fuente: Wipo "IOT" The utility model discloses a gas station advertising board based on NB-IOT. The system comprises a terminal device, an electronic paper display screen, a base station and a cloud. The terminal equipment comprises an NB-IOT (Narrow Band Internet of Things) terminal, the NB-IOT terminal comprises a microcontroller, an NB-IOT module, a memory and a first battery, the microcontroller, the NB-IOT module and the memory are electrically connected with the first battery; wherein the microcontroller sets updated oil price content through software and transmits the updated oil price content to the basestation through the NB-IOT module, the NB-IOT module synchronously updates data to the plurality of electronic paper display screens, and the base station establishes connection with the cloud through wireless communication. Interaction between the cloud and the display screen is achieved through NB-IOT, synchronous updating of oil price data of large-area gas stations in cities is achieved, andthe system is more efficient and convenient to use.