Fecha de publicación: 21/01/2020 Fuente: Wipo "IOT" The utility model relates to the technical field of electronic circuits. The utility model relates to a meter reading system, in particular to an intelligent meter reading system based on NB-IoT. Thesystem comprises a data concentrator, a single-chip microcomputer, an MCU processor and a management background. The data concentrator is connected with the intelligent water meter, the intelligent electric meter and the intelligent gas meter; the system is used for acquiring water meters, ammeters and information data. The acquired data is uploaded to a single-chip microcomputer connected with the data concentrator; the single chip microcomputer is connected with an NB-IoT module I; wherein the MCU processor is respectively connected with the NB-IoT module I and the NB-IoT module II, the NB-IoT module I and the NB-IoT module II are respectively in communication connection with the NB-IoT base station, the management background is in communication connection with the NB-IoT base station, and the MCU processor is in communication connection with the management background. According to the utility model, network signal coverage between the NB-IOT module I and the NB-IoT base station andbetween the NB-IoT module II and the NB-IoT base station can be enhanced, relatively stable reliability can be maintained, and time delay can be effectively reduced.