The Autonomous Hooking System (AHS) enables fully autonomous lifting and load-handling operations by solving a critical bottleneck: the manual connection and disconnection of lifting hooks to cargo. This manual step currently prevents complete automation in offshore, construction, and industrial settings. AHS combines sensors, computer vision, and control systems with a passive mechanical coupling mechanism using ball-and-claw geometry that operates without actuators. This enables cranes and robotic manipulators to autonomously complete the entire load-handling cycle without human intervention.
This qualification project advanced the technology from a laboratory prototype capable of handling 200 kg loads to a system handling 2-tonne loads (with 8-tonne breaking strength providing a 4× safety margin). The upscaled system was validated through demonstrations at UiA's Motion Laboratory in realistic operational conditions. One demonstration used an industrial robot with simulated vessel motion for offshore applications; another integrated the system with a full-scale loader crane for autonomous pick-and-place operations.
Intellectual property protection was secured through a patent application and international design registrations. An industry advisory board was established with representatives from crane manufacturers, inspection bodies, and equipment suppliers. Regulatory requirements were clarified through engagement with certification authorities, identifying the pathway to offshore certification.
The qualification project successfully advanced AHS to Technology Readiness Level 5. The next step is further development towards field testing and demonstration in collaboration with industry partners, enabling fully autonomous lifting and load-handling operations worldwide.
The project outcomes impact the scientific community, industry, and society in different ways. The qualification project has strengthened competencies in autonomous systems, mechatronics, and computer vision at UiA through integrated technology development, advancing AHS from TRL 3 to TRL 5. This has increased interdisciplinary collaboration across robotics, control systems, and mechanical engineering. Intellectual property protection was secured through patent and design registrations, enabling future technology transfer. Research results will be disseminated through conference and journal publications, covering the passive mechanical coupling mechanism and autonomous lifting demonstrations in simulated offshore and harbour environments.
Industry stakeholders across the lifting and load-handling value chain will benefit from technology that enables fully autonomous operations. Engagement with crane manufacturers, inspection bodies, and equipment suppliers has clarified regulatory requirements for autonomous lifting equipment and identified certification pathways for offshore applications. The passive coupling mechanism's tolerance to positioning errors provides practical solutions across diverse applications including offshore operations, harbour logistics, construction sites, manufacturing facilities, and warehouse automation. TRL 5 validation positions AHS for field demonstrations with industry partners, with anticipated application across multiple sectors where manual hooking operations currently prevent full automation.
In the long run, AHS contributes to improved workplace safety by removing personnel from hazardous hooking operations in offshore, construction, and industrial environments. This directly addresses accident reduction while enabling Industry 4.0 automation in lifting operations. The technology extends operational capabilities in challenging conditions and reduces costs, contributing to safer and more efficient operations globally across multiple industrial sectors.
