Design and Implementation of DMS Control System for Dam Defects Inspection and Identification

Numerous dams have been in service for more than thirty years and are gradually aging. Many of them are defective and risky dams. To detect defects on the dam surface, obtain intuitive and reliable information, and evaluate the safety of the dams in real-time, the "Yulong" Dam Maintenance Submersible (DMS) has been designed and built. This operating platform is not limited by the season and can inspect deep-water dams while obtaining High-definition video data of suspicious leakage points and other defects. By carrying technicians on-site to identify defects, grasp the underwater situation of the dam in real-time, and obtain timely and comprehensive information on the dam surface. The DMS is a complicated system that puts harsh requirements on the control system. The engineering application results show that the control system that we designed and implemented is stable, reliable, and highly accurate, and can effectively complete underwater inspection and operation tasks, thereby ensuring the safe operation of the deepwater dams.