Quantitative monitoring method of damage, and system thereof

The invention discloses a quantitative monitoring method of a damage, and a system thereof, and relates to the technical field of structure quality monitoring. The method and the system are designed for solving the problems of complicate structure, low cost, difficult maintenance and the like of signal acquisition equipment of present quantitative monitoring methods of damages. The quantitative monitoring method of the damage comprises the following steps: a sensor network is arranged on a structure to be monitored, the sensor network comprises at least one grid unit, the grid unit comprises three sensors arranged in a triangular manner, the sensor network is used to quantitatively monitor the damages, the sensors form a plurality of first positioning curves in a self-transmit-and-receive mode, adjacent two sensors form a plurality of second positioning curves in a transmit-receive mode, and the innermost area formed by intersecting the plurality of first positioning curves and the plurality of second positioning curves is the determined damage area. The method and the system allow the position and dimension of the damage to be obtained according to different precision requirements by efficiently utilizing the sensor network without calibration, and signal acquisition equipment of the method and the system has the advantages of simple structure and low cost.