Figure 1: Offshore Multi-Unmanned Vehicle

Integrated Multi-Unmanned System: USV, ROV, and UAV Coordination

• Multimodal Coordination: A seamless O&M mechanism for surface and subsurface assets, coordinating USVs, ROVs, and UAVs. Supports remote command and control via 5G, LTE, and Satellite links for manual teleoperation or fully autonomous path-planned missions.
• Intelligent Navigation: Features an environment-sensing and autonomous navigation system that achieves intelligent path prediction and yaw correction, enhancing stability and maneuverability.
• Remote Deployment: Features Automated Launch and Recovery Systems (LARS) for ROV operations or scientific instruments, alongside UAV integration.
• Autonomous Reliability: Includes remote autonomous work modes with Return-to-Base (RTB) fail-safe capabilities, ensuring compliance with IMO safety regulations.
• Vessel Coordination: Employs point-to-point communication for remote control within a 10km range.
• Onshore Operation Center: Employs a multi-channel communication system (Maritime Satellite, 2.4GHz, and 5GHz) for real-time data backup and remote command override.
• Integrated Sensor Suite: Provides real-time visual monitoring, collision avoidance, navigation, and environmental sensing.
  

Unmanned Surface Vehicle (USV) Specifications and Design

• The USV is designed with a high-performance catamaran hull and streamlined bows for superior lateral stability and minimized wave resistance.
• Operational limits: Engineered to maintain full mission integrity in Sea State 4 and capable of returning to base in Sea State 5.
• Self-Stabilizing Flight Platform: Utilizes an IMU-linked electric control system to counteract hull motion, maintaining a level platform in conditions up to Sea State 5.
• Deployment system (LARS): Features a modular, portable Launch and Recovery System (LARS) for stable deployment of ROVs or scientific instruments weighing up to 35 kg.
• Vessel versatility: The 1.5m mold depth provides additional buoyancy and payload capacity, suitable for hoisting by small to medium vessels.
• Endurance: Capable of 10-day missions with a cruising range of approximately 800 nautical miles to align with offshore operational cycles.
• Versatile Mission Modes: Deployed from a mother ship, the USV pairs with different vehicles for three main tasks: (1) Turbine Tower & Blade Inspection (USV + UAV), (2) Substructure Inspection (USV + ROV), and (3) Hydrographic Survey (USV + Scientific Instrumentation).

Self-Stabilizing Flight Platform

Figure 2: Structural design of the self-stabilizing flight platform

Standard UAVs struggle to take off and land on rocking vessels in Sea State 3–4 conditions. The USV utilizes a high-frequency IMU-linked electric control system and dual-axis servo motor compensation to counteract hull motion. This ensures a takeoff and landing success rate of over 95% in harsh sea conditions.

Remote Control Technology for Unmanned Surface Vehicles (USVs)

【Autonomous Navigation Test Platform】

Figure 3: Autonomous Navigation Test Platform pool testing

• Performs decision fusion by integrating data from GNSS, IMU, AIS, and environmental sensors.
• Allows for seamless switching between manual teleoperation and fully autonomous modes based on mission requirements.
• Validates heading control, path tracking, and waypoint navigation accuracy within harbor environments.
• Evaluates fail-safe mechanisms, such as autonomous Return-to-Base, in the event of communication interruptions.

【Remote Command and Control (C2) Station】

Figure 4: Screen interface of the remote C2 station

Figure 5: Operators at the remote C2 station

• Integrates all sub-systems to display real-time USV status and marine environmental information.
• Provides multi-screen, high-definition video streaming to enhance mission monitoring and situational awareness.
• Supports remote mission and flight path planning using advanced autonomous control algorithms.