Monitoring device based on smart city

The utility model discloses a monitoring device based on a smart city, which comprises a monitoring body, a monitoring head and a fixed box, the bottom of the monitoring body is fixedly connected with the top of the monitoring head, and the monitoring body is positioned at the bottom of the fixed box. According to the utility model, the remote controller is arranged to send a signal to the control box, so that the control box starts the time relay and the connection transmission assembly after receiving and processing the signal, and the connection transmission assembly drives the connection protection assembly to adjust and protect the top of the monitoring body; the problems that an existing monitoring device is prone to being affected by severe weather in use, rainwater easily flows out of a monitoring head at the bottom of the monitoring device along the top of the monitoring device in rainy days, normal monitoring of the monitoring head is affected, hail easily damages the top of a building device in hai