Fecha de publicación: 22/11/2019 Fuente: Wipo "IOT" The utility model discloses a temperature acquisition system based on NB-IOT, and the system comprises a key circuit which is used for receiving a key touch action and outputting different levels to asingle-chip microcomputer; the temperature measuring circuit is used for receiving the information sent by the single-chip microcomputer, detecting the heat supply temperature and transmitting the heat supply temperature to the single-chip microcomputer; the single-chip microcomputer is used for receiving the level and the heat supply temperature of the key circuit and transmitting the level andthe heat supply temperature; the NB-IOT module is used for receiving the heat supply temperature information sent by the single-chip microcomputer and uploading the heat supply temperature informationto the server; and the single-live-wire power supply module is used for obtaining weak current on the bus and converting the weak current into low-voltage current to supply power to the key circuit,the temperature measurement circuit, the single-chip microcomputer and the NB-IOT module. According to the technical scheme of the utility model, the NB-IOT module is adopted. The whole temperature acquisition system adopts wireless communication, wiring is not needed, the construction wiring cost and the labor cost are reduced, meanwhile, the NB-IOT has the characteristic of low cost, the cost ofthe whole temperature acquisition system is greatly reduced, data is transmitted through the NB-IOT module instead of small wireless, and the reliability in the transmission process is high.