Concrete Mixture Cold Joint Prevention and Control System

To resolve the issue of cold joints forming in concrete during the construction process, this study has developed a control system with visual prevention capabilities. By utilizing the improved YOLO11-LP license plate recognition system, we record license plate information and calculate the supply time of the mixture. Based on the structural characteristics of the belt conveyor, laser ranging technology, and GNSS-RTK positioning technology, an algorithm is proposed to determine the operating status of the belt conveyor, calculate the position and area of the mixed material, and record the pouring and compaction time. This algorithm is suitable for parameter acquisition equipment throughout the entire process of mixture pouring. The developed software system is based on the parameters calculated by the pouring process time calculation model, combined with the cold joint prevention and control threshold of the mixture, and feeds back the construction warning information to the site through a visual model. The application proves that the developed preventive control system helps to avoid the formation of cold joints in the mixture.