Welcome to gadgetPool.de!
gadgetPool
Homepage
Projekt veröffentlichen
Artikel schreiben
Projekte lesen
Artikel lesen
Forum
Diskussionen Ideen Vorschläge
Downloads
Treiber Dateien Datenblätter
Anmeldung
Passwort Mail Einstellungen

     Menue
WebShop
Hier gibt's die gadgets

     Languages
Sprache für das Interface auswählen

English German

     Login
Benutzername

Passwort

Kostenlos registrieren!. Gestalten Sie Ihr eigenes Erscheinungsbild. Passen Sie das Seitenlayout Ihren Wünschen an

gadgetPool.de: Forum

gadgetPool.de :: View topic - MOB Alarm Output Feature
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log inLog in 

MOB Alarm Output Feature

 
Post new topic   Reply to topic    gadgetPool.de Forum Index -> Nmea Multiplexer with SeaTalk I/O
View previous topic :: View next topic  
Author Message
ianm
Master
Master


Joined: May 31, 2007
Posts: 10
Location: Australia

PostPosted: Mon Oct 10, 2016 9:40 am    Post subject: MOB Alarm Output Feature Reply with quote

Hi,

We recently purchased an Ocean Signal personal AIS beacon which attaches to the lifejacket and emits an AIS MOB signal when activated. I have an AIS receiver which receives this AIS MOB signal and this is connected to the NMEA Multiplexer and then to the chartplotter.

We often do overnight passages where one of us sleeps while the other is on watch. I would like to modify the NMEA Multiplexer so that when it reads an AIS MOB message it operates a loud external alarm to wake the sleeping crew.

I'm an electronics engineer and feel confident of being able to interface the alarm to the microprocessor but I'm not so confident with modifying the firmware to read the AIS MOB message and operate an I/O line. I would be grateful if the firmware was modified to add this feature.

The NMEA message that causes the alarm could possibly be editable so that it appeals to more people by being able to be triggered by other NMEA messages.

Thanks

Ian
Back to top
View user's profile Send private message
FWallenwein
Site Admin
Site Admin


Joined: Mar 26, 2006
Posts: 419
Location: Mannheim / Germany

PostPosted: Mon Oct 10, 2016 3:06 pm    Post subject: Reply with quote

Hello Ian,

good Idea. Here are my first thoughts.

We already have something similar - our SeaNet Alarm.

See HERE

This device has am BTS 442 automotive mosfet switch to switch on/off the alarm horn / light.

This device is built to listen to SeaTalk messages instead of NMEA messages.
I have to check, if the circuit could be modified to be able to listen to NMEA messages as well.

Otherwise we could, of course, modify the muxer firmware to identify an AIS MOB Signal. ( I'll have to check what a AIS MOB sentence looks like )

I guess we also need an acknowledge button to switch off the alarm horn ?

Best regards
Frank
Back to top
View user's profile Send private message Visit poster's website
ianm
Master
Master


Joined: May 31, 2007
Posts: 10
Location: Australia

PostPosted: Mon Oct 10, 2016 9:30 pm    Post subject: Reply with quote

Hi Frank,

I would be happy with the NMEA sentence being editable - then you can enter in whatever string I want to trigger the alarm. I believe these AIS beacons transmit AIS messages 1 (position) and 14 (safety related) when activated so in my case I would look for a message 14.

For resetting the alarm I was thinking a timer that you can adjust could suffice but an acknowledge line would be even better.

Best Regards

Ian
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    gadgetPool.de Forum Index -> Nmea Multiplexer with SeaTalk I/O All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001-2003 phpBB Group
phpBB port v2.0.7 based on Tom Nitzschner's phpbb2.0.6 upgraded to phpBB 2.0.7 standalone was developed and tested by:
ChatServ, mikem,
and Paul Laudanski (aka Zhen-Xjell).

Version 2.0.7 by Nuke Cops © 2004 http://www.nukecops.com
Forums ©




All logos and trademarks in this site are property of their respective owner. The comments are property of their posters, all the rest © 2006-2015 by gadgetPool.


PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Erstellung der Seite: 0.05 Sekunden