Radar plugin v5.0.0 released

[Moo]

Originally Posted by Ambler

Along with the Halo Radar you will need to integrate a magnetic heading sensor such as the Lowrance Point-1 (which also has gps). This is connected and powered up via a nmea 2000 cable into whatever display the radar gets connected to. Otherwise targets are not able to be tracked and the radar will not overlay a chart.
The Point-1 is the least expensive and more than adequate option as a heading sensor with the bonus of gps. Don't forget to calibrate this once mounted on your vessel.

Yep, also known as the Simrad GS25

[rolker]

Originally Posted by Ambler

Along with the Halo Radar you will need to integrate a magnetic heading sensor such as the Lowrance Point-1 (which also has gps). This is connected and powered up via a nmea 2000 cable into whatever display the radar gets connected to. Otherwise targets are not able to be tracked and the radar will not overlay a chart.
The Point-1 is the least expensive and more than adequate option as a heading sensor with the bonus of gps. Don't forget to calibrate this once mounted on your vessel.

Thanks! The boat already has an Applanix POSMV positioning system for the multibeam sonar, so we'll use that to properly position the radar data.

The plan is to get the radar data into the ROS environment in the vehicle's frame of reference, then apply the transformations with that framework.

As for the display, ultimately there won't be a need for one when the boat is fully autonomous, but until then, the data will get compressed and sent to shore (or mothership) to be displayed on our mission planning and monitoring software.

[BigAl.NZ]

Is the Garmin GMR18HD+ supported with this plugin?

If so is it via wireless or wired or?

Thanks

[Hakan]

Originally Posted by BigAl.NZ

Is the Garmin GMR18HD+ supported with this plugin?

If so is it via wireless or wired or?

Thanks

Similar questions has been raised here before. See here for example: https://www.cruisersforum.com/forums...ml#post2989747
We know about Garmin HD and xHD. For other, probably, rather similar types we have no verified information. But if anyone could get a hand on one for a test and report the result here others would benefit a lot. It would be really fine to be able to add more supported designations to the plugin description.

Wired is a secure and reliable connection. See more here what's said about Navico: https://github.com/opencpn-radar-pi/...ation-(Navico)
It may be the same for Garmin.

Håkan

[keoe]

I have a Garmin xHD 18" and want to connect it to the plugin without connection to any plotter. I have bought Amphenol MRJ*5780*01 but I'm not sure how to do the connection on the pc board. Is there anyone with experience of this who can tell me where to connect the cable with the switch?

[Hakan]

keoe...
Try this for a start:
https://github.com/opencpn-radar-pi/...n-%28Garmin%29
Håkan

[keoe]

Håkan, thanks for your reply. I have read the wiki page but I’m not sure how to identify pin 5 and what is mean with ”connector shell chassis ground”. Is that the screw hole outside the female port?

[Hakan]

keoe..
here:

https://pinouts.ru/NetworkCables/eth...0_pinout.shtml
or:
https://pinouts.ru/NetworkCables/eth...0_pinout.shtml


Now I don't have a Garmin myself but I read chassis ground as something electrical connected to ground, so yes try the screw.
Here are a lot folks using a Garmin radar scanner. Please tune in.

[chrisryan43]

Hi, i'm running opencpn on my Pi 3B+ with stretch. I have installed and enabled the plugin but when i try to go into preferences and select my radar (BR24) OpenCPN crashes. There is nothing in syslog. Any suggestions on where to look or what to try?

[LeaseOnLife]

Originally Posted by chrisryan43

Hi, i'm running opencpn on my Pi 3B+ with stretch. I have installed and enabled the plugin but when i try to go into preferences and select my radar (BR24) OpenCPN crashes. There is nothing in syslog. Any suggestions on where to look or what to try?

Same here on two systems: PI4/Buster and a Kubuntu 20.04 laptop. dmesg shows a crash in libstdc++

[12624.191957] opencpn[11023]: segfault at 0 ip 00007f859236a191 sp 00007ffd55e66a40 error 6 in libstdc++.so.6.0.28[7f85922a6000+f0000]
[12624.191968] Code: 2f 4c 8d 77 10 4c 8b 66 08 48 89 fb 48 89 f5 4d 39 ee 0f 84 a9 00 00 00 48 8b 57 10 4c 39 e2 72 50 4d 85 e4 75 33 4c 89 63 08 <43> c7 44 a5 00 00 00 00 00 48 8b 44 24 08 64 48 2b 04 25 28 00 00

I can configure my Navico 4GA and 4GB in the config file just fine, but the crash happens everytime I use the radar type selection dialog.

[Hakan]

I can confirm the crash in both RPi3 and RPi4 even if built on each machine.
I can also confirm it's the radar selection method causing the bug.
@chrisryan43. A work around for the very moment, thanks to LeaseOnLife, is to close OCPN and edit your /home/pi/.opencpn/opencpn.conf file.
Change the setting: [PlugIns/Radar] Radar0Type to read exact like this:
Radar0Type=Navico BR24
Save the file and start OpenCPN again. That's working for me on my RPi3.

Thanks for the report. We need to investigate this bug.

[chrisryan43]

Thanks, following LeaseonLife's post i did edit the config and up and running now. Painfully slow though, even with OpenGL enabled. Any tips?

[Hakan]

Slow. RPi3, yes. I agree but the painful limit depends on your expectations on this little machine. It's working for navigation but not much for rapid zoom out and in.
RPi4 is of course much better.
Tips.. not really but for radar_pi check View->Refresh rate. Try "1" or "2" if it makes any difference, more will use power.

[Reefmagnet]

This may be a new thing with the crashing? I installed radar on my toughbook a couple of days ago running a fresh install of linux lite and it does the same thing. OpenCPN immediately crashes with no notable log entries. This happened selecting 3g or BR24 Navico radar, but selecting emulated radar doesn't crash and works as expected. If emulated is selected, clicking "preferences" and selecting another radar from the "Radar Selection" dialog then clicking "Ok" causes the same crash without the new selection being saved.



Yesterday I installed the plugin on my Windows laptop and it works fine


I've attached a snippet of the opencpn log immediately prior to the crash. dmesg shows the same error as LeaseOnLife mentions.

[LeaseOnLife]

The bug has been entered by Hakan on github:

https://github.com/opencpn-radar-pi/radar_pi/issues/132


He also found that 5.0.4-beta2 works for him. I played a bit more, going back only to beta6 still crashes for me, beta4 seems fine.