In view of the problems that the detection technology can realize the distributed monitoring of cracks,but cannot identify the number of cracks in the area covered by the sensor,the crack width parallel to the direction of the sensor,and the need to increase the number of channels,a set of monitoring systems and schemes integrating the gridding of conductive medium sensors,the realization of string and parallel hybrid multi-channel crack data acquisition system and the establishment of digital twin model are proposed.Improve the structure and detection method of existing conductive medium sensors.Through theoretical and experimental methods,real-time monitoring and display of seam trajectories are realized.