Street lamp intelligent measurement and control device based on NB-IoT technology

A street lamp intelligent measurement and control device, comprising:

• a microcontroller unit (MCU) chip;
• a voltage sampling circuit;
• a current sampling circuit;
• a power sampling device and a control device;
• and
• an electrical parameter measuring circuit, an NB-IoT communication circuit, a dimming circuit, and a switching control circuit respectively connected to the MCU chip,
• wherein the electrical parameter measuring circuit with an output terminal connected to the MCU chip is configured to determine electrical parameter data and electrical energy data of a street lamp load, and transmit the electrical parameter data and the electrical energy data to the MCU chip;
• wherein the MCU chip is signally connected to a remote control center through the NB-IoT communication circuit, actively uploads the electrical parameter data and/or the electrical energy data to the remote control center according to a preset time interval, and receives a controlling instruction from the remote control center;
• the MCU chip sends out a switching signal and/or a dimming signal according to the controlling instruction;
• wherein the switching control circuit comprises a switching input terminal connected to the MCU chip, the switching control circuit is configured to control an on-off of the street lamp load according to the switching signal sent by the MCU chip;
• wherein the dimming circuit comprises an input terminal connected to the MCU chip, the dimming circuit is configured to adjust a light intensity of the street lamp load according to the dimming signal sent by the MCU chip;
• and
• wherein the voltage sampling circuit, the current sampling circuit and the switching control circuit are arranged on the power sampling device;
• the MCU chip, the electrical parameter measuring circuit, the NB-IoT communication circuit and the dimming circuit are arranged on the control device;
• and the power sampling device is electrically connected to the control device.