Internet-of-things data transmission method based on NB-IoT technology

The aim of the invention is to provide an Internet-of-things (IoT) data transmission method based on an NB-IoT (Narrow Band Internet of Things) technology to solve the technical problem that transmission failure is caused when the data length of data transmitted exceeds the maximum transmitted data length in the prior art. When an NB-IoT module pre-reports data to an application server, if the data needs to be framed, the following steps are executed: the data is split into a plurality of data frames; the data frames are transmitted frame by frame to the application server through an IoT platform; and the application server receives all the data frames and then combines the data frames. When the application server sends an instruction to the NB-IoT module, if the data needs to be framed, the following steps are executed: the data is split into a plurality of data frames; the data frames are transmitted frame by frame to the NB-IoT module through the IoT platform; and the NB-IoT modulereceives all the data fra