The invention relates to the technical field of crack monitoring, in particular to a concrete structure crack full-life-cycle monitoring method and
system, and the method comprises the following steps: arranging
sound wave points to obtain a
stress change to generate an initial
signal, extracting an image
feature recognition extension path, analyzing a size acceleration to generate an extension identifier, and screening an active cycle at intersection time to generate an evolution fragment. And classifying crack behaviors according to displacement and width trends to generate an
annotation set. According to the method, stress evolution is reflected based on interval
transit time, a crack expansion trend is extracted in combination with an image feature point track, an
active state is identified by superimposing
crack size speed increase
synchronism, a high-frequency change fragment is positioned through multi-index time intersection, and crack behavior types are divided according to a displacement direction and a width increase trend. Continuous tracking and classified marking of the whole process from crack starting to evolution are achieved, the
response capacity to abnormal crack behaviors is enhanced, and the precision and timeliness of
structural safety state recognition are improved.