Image segmentation and object detection distinguish docks from walls or barges and verify open water for autonomous vessel docking.
Proximity sensing sets direction-specific speed and acceleration limits so a vessel maintains buffer distance and avoids collisions near obstacles.
Trajectory planning uses wind, wave, and current uncertainty to predict obstacle margins and generate safer feasible routes for marine vessels.
Real-time vessel path data is matched with historical navigation patterns to recommend COLREGS-compliant maneuvers in complex collision scenarios.
Real-time proximity sensing and buffer-distance control progressively limit vessel speed toward nearby objects to help prevent collisions.
Proximity sensors and a controller progressively cap vessel speed near obstacles to maintain a preset buffer distance and prevent collisions.
Real-time multi-vessel tracking is matched with historical navigation data to predict collision risk and recommend timely avoidance manoeuvres.
Correlation across Doppler offsets helps LEO satellites separate overlapping AIS messages and decode ship traffic in dense maritime regions.
Time-period capacity windows guide road user speed or routing to avoid overload, cut fuel use, and improve slot utilization.
Congestion-based parameter switching helps track targets accurately across crowded and clear scenes while reducing target swaps.
Combining wearable radio signals with vessel motion sensing improves crew emergency detection and supports more accurate activity reporting.
Satellite imagery detects and classifies inland barges, filling AIS gaps for non-motorized traffic monitoring and movement status tracking.
Combines time-based and distance-based ship collision risk values so navigators can align warnings with their own assessment criteria.
Combining time-to-approach and ship distance with adjustable weighting helps align collision alerts with different navigator judgment criteria.
Occupancy sensors detect watercraft arrivals and departures, alerting marina staff to available slips and possible theft.
This case detects spoofed AIS locations by comparing vessel reports with terrestrial and satellite data, then verifies true paths.
Distributed receiver units on flying objects share superimposed AIS signals to resolve interference and improve detection reliability.
A complex event processing framework detects maritime anomalies using in-memory databases and real-time AIS data streams.
A signal processing device calculates instantaneous frequency change rates to detect distress signals accurately.
Compressing vessel trajectories via Douglas-Peucker algorithms reduces storage needs while maintaining accuracy for maritime traffic pattern identification.
An aircraft warning system retrieves obstacle height data from a database using identity information extracted from Automatic Identification System signals.
A composite map generation method uses variable grid widths to combine wide-area radar data with high-resolution LIDAR inputs.
Information display device estimates closest approach positions and projects risk areas onto a common reference frame.
A collision risk calculation device acquires traveling information on ships and produces future direction ranges based on past sailing data.
A radar tracking unit predicts echo mergence using target movement data to adjust control gains and display settings.
Multi-polarization antennas separate overlapping Automatic Identification System messages using computational decollision to improve detection accuracy.
Segmenting icons resolves the contradiction between displaying multiple targets and maintaining intuitive understanding of individual bearings.
A position estimation method updates model parameters using historical data sequences to determine accurate ship location predictions.
Deploying an aircraft with an AIS flying transmission unit relays maritime traffic signals to ships in remote areas lacking coastal stations.
Segmented sensor modules on an unmanned vessel identify rip currents and monitor water quality, enabling real-time alerts for beach safety personnel.
A satellite system segments its field of view into multiple zones using mathematical combinations of sensor signals to produce independent zone signals.
Segmented radar display devices resolve scale trade-offs by showing detailed near-field imagery and distant landmark directions simultaneously.
Distributed acoustic timing measurements enable autonomous underwater vehicle swarms to localize nodes accurately while avoiding detection from towed arrays.
Calculates reachable range by integrating static data with dynamic speed and direction changes to resolve prediction accuracy issues.
Aircraft-mounted AIS transceivers capture maritime radio signals at cruising altitudes to enable global ship traffic detection.
Processor replaces course over ground with target direction at low speeds to stabilize closest point of approach calculations.
An AIS ship transceiver uses a control unit to activate or deactivate specific radio signal transmissions based on real-time position data.
Ramer-Douglas-Peucker algorithm simplifies vessel tracking data points in four-dimensional hyperspace.
A replay system uses a free running model ship to physically simulate collision avoidance maneuvers and verify navigation trajectories in real time.
A collision alarm apparatus monitors relative velocity data to trigger alerts for risky target vessels.
A navigation method establishes dummy ships along boundaries to generate anti-collision circles for autonomous vessel routing.
A navigational decision support system fuses data from multiple sources to generate allowable and recommended maneuvers.
A centralized RF interference database stores signal characteristics to guide travel paths away from destructive radio frequency zones.
A tracking device generates pseudo-measurement data along predefined ship routes to maintain track integrity when sensor coverage is incomplete.
Segmenting vessels into reporting groups using simulated annealing reduces redundant bandwidth usage while maintaining comprehensive tracking reliability.
Filtering operators remove sea clutter noise from radar signals, enabling automatic calculation of ship length and width without manual estimation.
A control system generates virtual course data by capturing GPS positional information to define buoy installation points on a water surface.
An airborne radar system determines optimal navigation paths by analyzing environmental influences to decrease received sea clutter power.
A satellite constellation integrity check system cross-verifies transponder signals using multiple radar modes to ensure accurate vehicle tracking.
A time series graphic display system normalizes relative distance and spare time values to visualize collision risks between navigating ships and obstacles.
Wireless electromagnetic beacons replace cables to eliminate interference and provide centimeter-level positioning accuracy.