Bridge structure health monitoring method and equipment based on moving time window

The invention relates to the technical field of bridge structure monitoring, in particular to a bridge structure health monitoring method and equipment based on a moving time window. According to the method, firstly, an algorithm based on a moving time window is put forward so as to reasonably determine the length of input data, and the phenomena of false modality and modality omission are effectively avoided; the similarity between the two modal shape vectors is solved to judge'similar modals', and the purpose of improving the bridge structure modal parameter recognition accuracy is achieved; and finally, drawing a time curve graph of the inherent frequency of each window and each order of the bridge structure under the environment excitation and the train operation state, and comparing and analyzing the change condition of the frequency value along with the time, thereby realizing the real-time monitoring of the operation state of the bridge structure. 本发明涉及桥梁结构监测技术领域，特别是一种基于移动时间窗口的桥梁结构健康监测方法及设备。本发明首先提出了基于移