Bridge monitoring system and method

The invention belongs to the technical field of bridge monitoring, and discloses a bridge monitoring system and method, and the system comprises a dynamic load target detection module which is disposed on a bridge and is used for recognizing a dynamic load target entering a bridge floor, obtaining image data, and determining the position information of the dynamic load target in the length direction of the bridge in real time; the dynamic deflection detection module is arranged in each section of box girder of the bridge and comprises a detection end arranged at a box girder support and a plurality of targets arranged in the length direction of the box girder, and the displacement of the box girder at the position corresponding to the targets is obtained through the detection end; and the control module is connected with the dynamic load target detection module and the dynamic deflection detection module to carry out control and data collection, confirm the weight of the dynamic load target, and obtain deflec