Box girder cavity detection system based on stress sensor and method thereof

The invention relates to a box girder cavity detection system based on a stress sensor and a method thereof. The box girder cavity detection system comprises a first sensor device, a controller connected with the first sensor device, and a wireless network device connected with the controller. The first sensor equipment comprises a plurality of stress sensors; the controller is configured to obtain box girder cavity information, and the stress sensors are vertically arranged in a plurality of to-be-detected areas; acquiring stress data of each to-be-detected area to form a stress detection information set; and detecting each to-be-detected area according to the stress detection information set, taking the to-be-detected area which does not accord with the hole detection scoring standard as a hole detection abnormal area, generating first alarm information, and sending the first alarm information to the user equipment. According to the system and the method provided by the invention, the problem can be more ac