Aiming at the problem of the serious waste of water resources

low utilization rate

backward monitoring mode and difficult data acquisition in China

a remote terminal unit（RTU） terminal based on narrowband communication technology is proposed. The terminal uses STM32 chip as the micro-control core

downlink communication uses two communication modes of M-bus

RS—485 to collect downlink pressure

flow and water quality indicators data; upstream communication uses the communication mode based on narrowband Internet of things（NB-IoT）

i. e. BC28 wireless module to achieve functional design

which pass back collected data information to the main station system. Experiments and applications show that the terminal saves the management and maintenance costs of the later stage of the water department

has better monitoring effect

improves the intelligent level of the pipeline network

and has good application prospects.