Automatic Lifting Cable Control System for Large Circular Steel Pipes based on Verticality Monitoring System

Abstract

In this paper, we propose an automatic lifting cable control system for large circular steel pipes based on the verticality monitoring system. Specifically, the system includes a monitoring component that provides real-time data on the pipe's alignment and an actuator control module that maintains perpendicularity by utilizing the data acquired from the monitoring system. The system is implemented with a tilt sensor, a hydraulic actuator, and an embedded controller. Experimental results show that the proposed system can efficiently measure the roll/pitch information in real-time. Furthermore, we show that the system properly operates and secures a verticality less than 0.2° in the suction bucket-based model experiment.