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Integrity Concept for Maritime Autonomous Surface Ships' Position Sensors
1Maritime University of Szczecin, Wały Chrobrego 1-2 Str., 70-500 Szczecin, Poland.
Sensors (Basel, Switzerland)
|April 11, 2020
Summary
Advanced Global Navigation Satellite System (GNSS) receivers are becoming essential for maritime transport and autonomous ships. This paper discusses integrity monitoring for these position sensors to ensure e-navigation safety.
Area of Science:
- Maritime Navigation and Positioning Systems
- Electronic Chart Display and Information Systems (ECDIS)
- Autonomous Maritime Systems
Background:
- Current merchant ships primarily use Global Positioning System (GPS) and Differential GPS (DGPS) for electronic position fixing.
- International Association of Lighthouse Authorities (IALA) radio beacon receivers are also in use.
- Advanced Global Navigation Satellite System (GNSS) receivers, integrating multiple satellite constellations (GPS, GLONASS, Beidou, Galileo, etc.), are currently rare in maritime applications.
Purpose of the Study:
- To discuss the current requirements, performance standards, and future concepts for integrity monitoring of maritime position sensors.
- To address the specific needs of Maritime Autonomous Surface Ships (MASS) and e-navigation safety.
- To anticipate the increasing integration of multi-system GNSS receivers with other sensors in future maritime transport.
Main Methods:
- Review of existing requirements and performance standards for maritime position sensors.
- Analysis of current and emerging technologies in GNSS receivers and sensor integration.
- Discussion of integrity monitoring concepts tailored for MASS and e-navigation.
Main Results:
- Multi-system GNSS receivers are expected to become standard in maritime transport and essential for MASS.
- Integration with other sensors (gyro, inertial, radar, laser, optical) will enhance positioning capabilities.
- Standardized, state-of-the-art integrity monitoring is crucial for ensuring the reliability of position sensors, especially for autonomous systems.
Conclusions:
- The evolution towards multi-system GNSS and sensor integration necessitates advanced integrity monitoring solutions.
- Standardization of integrity monitoring is vital for the safe and reliable operation of future maritime autonomous systems and e-navigation.
- Proactive development of integrity monitoring is required to prepare for potential malfunctions of maritime position sensors.
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