Hi everyone. I’m considering developing a new tool for making navigating at sea safer, simpler and more efficient. In my opinion ECDIS is a great tool for basic navigational tasks, but with the technology we have today the potential for developing new functions is huge. I’m curious to hear from more…

Don’t know how common it is. I believe Furuno offers it, don’t know how reliable it is. Generally AIS is suitable to evaluate targets at longer range, closer in APRA is more reliable but has to be confirmed visually for close CPAs. In a heavy downpour ARPA acquisition of radar targets can be lost,…

RE: Experience/Value The only ship I ever saw it on was when I was a Cadet on the TSES VI, we weren’t “allowed” to use it so I can’t really vouch for its efficacy, I also wasn’t exactly sweating bullets in dense traffic as a Cadet. Many years later my experience navigating in heavy traffic would su…

AIS shouldn’t be used for collision avoidance so I don’t agree with AIS and radar fusion. A lot of people use the CPA and other data from AIS instead of radar but the data from AIS can be completely wrong. AIS should only be used to identify a target.

Just got a new phone so it’s fresh in my mind. How about if the ECDIS gave a message along the lines of: “On this voyage the alarm is going to sound 5,675 times, would you like help fixing that?”

Just as humans 'fuse" sight and sound to maintain situational awareness (hear a sound, turn to have a look) the information from AIS and ARPA would be fused. For example when there is so-called “target swapping” the Lat/Long signal from AIS might be useful in locating the correct radar signal. A…

I think you’re right in this. Even though AIS can be erroneous, it will in many cases help to “correct” a radar offset and help distinguish targets from each other.

Some comments from an amateur sailor… [image] curious_engineer: * Visualization of CPA. Not only showing DCPA and TCPA numbers, but actually showing the graphical CPA positions on the map. OpenCPN has a decent visualization of this that will graphically show CPA for multiple targets. I’m n…

I’m not sure I agree that the OpenCPN shows a decent visualization of the CPA, to me it looked rather messy… Regarding the turning I very much agree with the “when will the turn stop and straighten out”. That would be a major challenge. But many ships are going in the almost exactly same routes man…

I think that anything offered is as an aid to navigation which neatly sidesteps any liability.

Throughout this discussion there is no equivalence to a the information available to the user sailing from the Eastern Anchorage Singapore to proceed to the East. The radar is saturated with hundreds of targets, anchored and underway and the bridge team moving from a night vision destroying the nig…

New functions to support navigation

Engineering Marine Engineering

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New functions to support navigation

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