AIS Navigation Message Format Storage for Update-Free Analysis
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Solution Overview
Problem
Existing AIS message formats require software and equipment updates when changed, preventing immediate operation with new formats.
Innovation Solution
A navigation information reception device that determines whether received messages are format or non-format messages, storing format information and analyzing non-format messages using stored data, allowing analysis without software or equipment updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the format of binary messages in AIS messages is changed to enable individual operations by region, then adaptability to different regional requirements is improved, but software and equipment updates are required which reduces ease of operation and increases deployment time
Solution Approach 1:
The system performs preliminary actions by receiving and storing format messages that define future message formats before actual navigation messages are transmitted. The format information is stored in advance in the format storage part, so when new formatted navigation messages arrive, the device is already prepared to analyze them without requiring software updates or equipment changes.
2Adaptability or versatility
If new message formats are introduced to support regional operations, then functionality for regional customization is improved, but equipment complexity increases due to the need for format storage and determination mechanisms
Solution Approach 1:
The message processing system is segmented into distinct functional parts: a reception part for receiving messages, a determination part for identifying message types, a format storage part for storing format information, and an analysis part for analyzing messages. This segmentation allows each component to have a specific, simplified function, reducing overall device complexity while maintaining adaptability.
Solution Approach 2:
A format storage part acts as an intermediary between the received format messages and the analysis part. This intermediary stores the format information and makes it available when needed, allowing the system to handle various regional formats without directly hardcoding each format into the analysis logic, thus reducing complexity.
3Productivity
If format messages are stored and used for analyzing non-format messages, then productivity in analyzing varied message formats is improved, but loss of time occurs during the format determination and storage process
Solution Approach 1:
The system performs the time-consuming format determination and storage actions in advance. Format messages are received and stored before actual navigation message analysis begins, so subsequent message analysis can proceed quickly using the pre-stored format information, improving overall productivity while minimizing time loss during operational phases.
Data Source
AI summary
A navigation information reception device includes: a reception part configured to receive a navigation information message; a determination part configured to determine whether the received navigation information message is a format message or a non-format message; a format storage part configured to store format information included in the navigation information message in a case where the received navigation information message is determined to be the format message; and an analysis part configured to analyze content of the navigation information message based on the stored format information in a case where the received navigation information message is determined to be the non-format message and where the format information is stored.