Fecha de publicación: 29/10/2021 Fuente: Wipo "IOT" The invention discloses an NB-IOT remote switching-on and switching-off control system, which comprises a voltage reduction module, a power supply circuit, an NB-IOT transmitting circuit, a remote control module, an NB-IOT receiving circuit, a relay control circuit, a photoelectric isolation switch circuit, a main chip circuit, a first relay coil and a second relay coil, wherein the voltage reduction module is connected with the NB-IOT receiving circuit and the relay control circuit through the power supply circuit, the relay control circuit and the NB-IOT receiving circuit are both connected to the main chip circuit, the photoelectric isolation switch circuit is connected with the main chip circuit, and the remote control module is wirelessly connected to the NB-IOT receiving circuit through the NB-IOT transmitting circuit. The NB-IOT remote switching-on and switching-off control system has the beneficial effects that the remote control module sends an switching-on or switching-off signal to the NB-IOT receiving circuit through the NB-IOT transmitting circuit, the NB-IOT receiving circuit controls the switching-on or switching-off circuit through a main chip and the relay control circuit according to the switching-on or switching-off signal, the remote control effect is achieved, the switching-on or switching-off circuit can be controlled on site, and the combination of local field control and remote control is realized.