Adaptive Vessel Target Area Using Moving Direction During Turns
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Solution Overview
Problem
Conventional navigation systems fail to accurately determine target areas for vessels when changing direction, leading to false alarms and potential collisions due to reliance on heading direction rather than actual moving direction.
Innovation Solution
An apparatus and method using motion data receivers and processing circuitry to determine the moving direction of a vessel, adaptively shifting the target area based on changes in the moving direction, incorporating rudder angle, steering wheel angle, heading deviation, and route data for accurate collision detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the target area is determined based on the heading direction of the vessel, then the target area remains stable and easy to calculate, but it becomes inaccurate when the vessel is turning, leading to false alarms or missed collision risks
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static target area definition (based on fixed heading direction) to a dynamic target area definition (based on actual moving direction). The target area is continuously updated to reflect the vessel's real-time motion trajectory, ensuring accuracy during turns while maintaining computational feasibility through systematic updates based on motion data.
2Reliability
If the target area is constantly shifted based on heading direction changes, then the system responds to directional changes, but it generates false alarms during turns when the vessel is not actually at risk of collision
Solution Approach 1:
The patent applies preliminary action by proactively determining the near-future target area based on the current moving direction before the vessel completes its turn. This allows the system to identify potential collision risks in advance and adjust the target area accordingly, preventing both false alarms and missed detections by anticipating the vessel's trajectory.
3Ease of operation
If the target area is determined based on heading direction rather than moving direction, then the system is simpler to implement, but it fails to detect objects in the near-future target zone during directional changes
Solution Approach 1:
The patent introduces motion-related data (such as speed, course over ground, and turn rate) as an intermediary between the vessel's control systems and the target area calculation. This intermediary data allows the system to accurately determine the moving direction without significantly increasing complexity, bridging the gap between simple implementation and reliable collision detection.
Data Source
AI summary
Various embodiments of the present disclosure provide an apparatus and method for determining the target area associated with the vessel. The apparatus includes a motion data receiver and processing circuitry. The motion data receiver is configured to determine a motion-related data of a vessel. The processing circuitry is communicably coupled to the motion data receiver. Further, the processing circuitry is configured to cause the apparatus to determine a change in a moving direction of the vessel based at least on the motion-related data of the vessel. Furthermore, the processing circuitry is configured to adaptively determine a target area associated with the vessel based on the change in the moving direction of the vessel, thereby enabling the apparatus to determine the target area based on the change in the moving direction of the vessel.