一种船舶轨迹数据安全方法和系统
By combining ship kinematics models and verification methods with auxiliary sensor data, GNSS spoofing attacks were detected, and the system switched to IMU extrapolation mode, thus solving the navigation error problem caused by GNSS data contamination and improving ship navigation safety and data reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIANYUNGANG NAVIGATION AIDS OFFICE DONGHAI NAVIGATION SUPPORT CENT MINISTRY OF TRANSPORT
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack the ability to autonomously detect GNSS spoofing attacks when GNSS data sources are contaminated, leading to erroneous decisions by ship navigation systems, increasing navigation safety risks, and affecting maritime accident investigations.
By combining ship kinematics models and auxiliary sensor data, kinematic feature conformity verification and cross-conformity verification are performed to detect GNSS spoofing attacks. After detecting spoofing, the system switches to IMU-based extrapolation mode to generate short-term corrected trajectory data.
It enables timely and accurate detection of GNSS spoofing attacks, improves the security of ship navigation data and the availability of the system, ensures navigation safety, and provides comprehensive data support for subsequent analysis and accident investigation.
Smart Images
Figure CN120874139B_ABST