Crane Pendulum Damping Using IMU Closed-Loop Control

The patent implements a closed-loop feedback control system where pendulum sensors detect cable angle deviations and the control device automatically adjusts drive device commands to dampen pendulum movements. The system continuously monitors pendulum-relevant parameters and modifies travel movements in real-time based on detected deviations, creating a self-correcting control loop that enhances reliability while maintaining structural stability.

The patent replaces conventional mechanical pendulum damping devices with an electronic control system that uses sensors, wireless communication, and automated control algorithms. Instead of mechanical dampers physically counteracting pendulum movements, the system uses electronic sensing and computational control to predict and prevent pendulum oscillations by adjusting drive commands, eliminating the need for additional mechanical damping components.

The patent enables the crane system to automatically dampen pendulum movements through self-monitoring and self-correction. The pendulum sensors continuously detect cable angle deviations and the control device autonomously adjusts drive device commands without requiring operator intervention. The system serves itself by automatically compensating for pendulum oscillations, reducing the operational burden on crane operators while improving control reliability.

The automated feedback control system continuously monitors pendulum movements and automatically adjusts control commands to dampen oscillations. This eliminates the need for operators to manually compensate for pendulum vibrations through practice and concentration, as the system performs this function automatically based on real-time sensor data and control algorithms.

The patent designs a universal pendulum damping system that can be retrofitted to various crane types including revolving tower cranes, bridge cranes, and ship-to-shore cranes. The control device communicates with different drive devices (slewing gear, trolley drive, hoisting gear) and the system adapts to different crane configurations through software configuration rather than hardware modification, enabling wide applicability across crane types without requiring crane-specific custom solutions.

The patent replaces expensive mechanical pendulum damping devices with a cost-effective electronic control system that utilizes existing crane sensors and communication infrastructure. By leveraging wireless communication protocols and standard control interfaces already present in modern cranes, the system avoids the need for costly mechanical dampers while achieving effective pendulum control through software-based solutions.