![Figure 6 from GPS-GSM based inland vessel tracking system for automatic emergency detection and position notification | Semantic Scholar Figure 6 from GPS-GSM based inland vessel tracking system for automatic emergency detection and position notification | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/d02dd90fcb83b9a9cc89c34295639bf8e988f555/4-Figure6-1.png)
Figure 6 from GPS-GSM based inland vessel tracking system for automatic emergency detection and position notification | Semantic Scholar
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