Industrial data acquisition system and industrial data acquisition method based on narrow-band Internet of Things

The invention discloses an industrial data acquisition system based on a narrow-band Internet of Things, and the system comprises: N sets of Bluetooth collectors, wherein each set of Bluetooth collector is used for collecting and transmitting industrial data, and N is a positive integer greater than or equal to 1; a narrow-band cellular Internet-of Things (NB-IoT) collector which comprises Bluetooth, establishes communication connection with the N sets of Bluetooth collectors and is used for receiving industrial data sent by the N sets of Bluetooth collectors; an NB-IoT transmitter which is connected with the NB-IoT collector and is used for transmitting the industrial data to the NB-IoT base station, so that the NB-IoT base station submits the industrial data to the server. Due to the fact that NB-LOT is combined with Bluetooth communication to collect production data in real time, the limitation of wired connection of production line station data collection is overcome, production bottlenecks can be found i