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Speaking of NMEA, is there a NMEA alarm monitor?

G

Glenn Ashmore

Jan 1, 1970
0
Almost all GPSs have anchor watch alarms and radars have range alarms but
they all put out a whimpy little beep. Is there a device that monitors the
NMEA data streams (from say a multiplexer) and make a noise that will get
your attention when it sees an alarm or MOB statement??

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
 
D

Dennis Pogson

Jan 1, 1970
0
Glenn said:
Almost all GPSs have anchor watch alarms and radars have range alarms
but they all put out a whimpy little beep. Is there a device that
monitors the NMEA data streams (from say a multiplexer) and make a
noise that will get your attention when it sees an alarm or MOB
statement??

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or
lack there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com


Yes, it's called a laptop, and you can connect MASSIVE speakers to it!



Dennis.
 
G

Glenn Ashmore

Jan 1, 1970
0
Dennis Pogson said:
Yes, it's called a laptop, and you can connect MASSIVE speakers to it!

Some how keeping a laptop running 24 hours a day for 3 or 4 days just to
monitor for alarm sentences when the job could be done with a fairly simple
circuit drawing only a few milliwatts seems more than a little bit
wastefull. Also the laptop may be subject to the idiosyncrasies of Windoze.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
 
D

Dennis Pogson

Jan 1, 1970
0
Glenn said:
Some how keeping a laptop running 24 hours a day for 3 or 4 days just
to monitor for alarm sentences when the job could be done with a
fairly simple circuit drawing only a few milliwatts seems more than a
little bit wastefull. Also the laptop may be subject to the
idiosyncrasies of Windoze.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or
lack there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com


I'm sure you are right, but picking up a GPS circuit is more than my limited
knowledge of electronics can manage, and as my laptop is connected to the
gps most of the time, it seems an easy shortcut.


Dennis.
 
K

Kees Verruijt

Jan 1, 1970
0
Meindert said:
Mmmm, interesting option :)
I know that the Seatalk-NMEA brigde from Raymarine has a dedicated alarm
output. But this one only works on Seatalk alarms.

A microcontroller-and-electronics hobbyist could make this for a few bucks
though...

Meindert

Well then Meindert, it sounds like an interesting addition to add to,
let's say, a NMEA multiplexer. You could programmatically tell it to
convert one of the NMEA outputs to an alarm, coupled to a relay if the
current needs to be very big.

Another idea would be to offer an option to switch this into the
external VHF speaker. Yes you're right a hobbyist can do this for a few
bucks but the market is there for grabs, most people prefer buying
something of the shelf!

Come on, why don't you add this to the next software release ;-)

-- Kees
 
E

engsol

Jan 1, 1970
0
Almost all GPSs have anchor watch alarms and radars have range alarms but
they all put out a whimpy little beep. Is there a device that monitors the
NMEA data streams (from say a multiplexer) and make a noise that will get
your attention when it sees an alarm or MOB statement??

As Meindert points out, it'd be pretty simple with a microcontroller.
The most complicated part would be the user interface to set
what to alarm on, and the criteria, and even that isn't a big deal.
Heck, I'm retired and looking for a project...maybe I'll take a shot
at it.
Norm B
 
J

John Proctor

Jan 1, 1970
0
Some how keeping a laptop running 24 hours a day for 3 or 4 days just to
monitor for alarm sentences when the job could be done with a fairly simple
circuit drawing only a few milliwatts seems more than a little bit
wastefull. Also the laptop may be subject to the idiosyncrasies of Windoze.

Glen,

Here is a scarry thought.

My wife went in for LASIK surgery to her eyes. Basically it a laser
procedure where they correct your eyes for astigmatism. They use a
laser interferometer to map the surface of your eyball and them use
mathematics to work out the sequence of laser blasts to ablate the
eyball surface to generate good vision. The gave her a DVD of the
process they did on her eyes and guess what? The whole thing is
controlled by a Windoze PC. I wonder what would happen if the blue
screen of death came up in the middle of a procedure;-)
 
G

Glenn Ashmore

Jan 1, 1970
0
John Proctor said:
Here is a scarry thought.

My wife went in for LASIK surgery to her eyes. Basically it a laser
procedure where they correct your eyes for astigmatism. They use a
laser interferometer to map the surface of your eyball and them use
mathematics to work out the sequence of laser blasts to ablate the
eyball surface to generate good vision. The gave her a DVD of the
process they did on her eyes and guess what? The whole thing is
controlled by a Windoze PC. I wonder what would happen if the blue
screen of death came up in the middle of a procedure;-)

I noticed to that when I got my eyeballs spot welded. But I had a couple of
Valums working so just bowed towards Redmond, WA and crossed my fingers.
:)

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
 
W

Wout B

Jan 1, 1970
0
Glenn Ashmore said:
Almost all GPSs have anchor watch alarms and radars have range alarms but
they all put out a whimpy little beep. Is there a device that monitors the
NMEA data streams (from say a multiplexer) and make a noise that will get
your attention when it sees an alarm or MOB statement??

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence management
features). Read about it here:
http://brookhouseonline.com/gps_backup_switching.htm . I have been
playing with the idea to add a buzzer to warn the user when it switches to
the backup GPS. As the "no GPS data" detection is already present, this is
very simple to do. If there is sufficient interest, we'll include it as a
standard feature. If you want it NOW, we'll add a buzzer to the present
model for a small charge if you decide to buy one.
Wout
 
W

Wout B

Jan 1, 1970
0
Glenn Ashmore said:
Almost all GPSs have anchor watch alarms and radars have range alarms but
they all put out a whimpy little beep. Is there a device that monitors the
NMEA data streams (from say a multiplexer) and make a noise that will get
your attention when it sees an alarm or MOB statement??

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence management
features). Read about it here:
http://brookhouseonline.com/gps_backup_switching.htm . I have been
playing with the idea to add a buzzer to warn the user when it switches to
the backup GPS. As the "no GPS data" detection is already present, this is
very simple to do. If there is sufficient interest, we'll include it as a
standard feature. If you want it NOW, we'll add a buzzer to the present
model for a small charge if you decide to buy one.
Wout
Brookhouse
 
G

Glenn Ashmore

Jan 1, 1970
0
Wout B said:
Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence management
features). Read about it here:
http://brookhouseonline.com/gps_backup_switching.htm . I have been
playing with the idea to add a buzzer to warn the user when it switches to
the backup GPS. As the "no GPS data" detection is already present, this is
very simple to do. If there is sufficient interest, we'll include it as a
standard feature. If you want it NOW, we'll add a buzzer to the present
model for a small charge if you decide to buy one.
Wout
Brookhouse

"Now" is a relative term. I have been working on this boat for 6 years and
am now in the "deep pockets" major boat bucks phase. It will be a year
before I could afford to buy one if you made it. :).

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
 
E

engsol

Jan 1, 1970
0
Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence management
features). Read about it here:
http://brookhouseonline.com/gps_backup_switching.htm . I have been
playing with the idea to add a buzzer to warn the user when it switches to
the backup GPS. As the "no GPS data" detection is already present, this is
very simple to do. If there is sufficient interest, we'll include it as a
standard feature. If you want it NOW, we'll add a buzzer to the present
model for a small charge if you decide to buy one.
Wout

I think there's an important point being missed here, IMHO.
So far we have over-temp alarms, high water in the bilge alarms,
NEMA-driven device alerts, CO alarms, smoke alarms, low
oil pressure, and you can add to the list.

What's really needed is a thing called an announciator (sp) panel,
That's a 'thing' that tells you instantly what the alarm is, usually with
a big display (1 inch by 4 inch), and an audible 'sounder'.

Agree? Disagree?

Norm B
 
D

Doug Dotson

Jan 1, 1970
0
Glenn Ashmore said:
I noticed to that when I got my eyeballs spot welded. But I had a couple
of
Valums working so just bowed towards Redmond, WA and crossed my fingers.
:)

I've been running my laptop almost 24/7 for about a year and a half and it
has
yet to crash. I hope the eye doctor was running XP.

Doug
 
W

Wout B

Jan 1, 1970
0
engsol said:
I think there's an important point being missed here, IMHO.
So far we have over-temp alarms, high water in the bilge alarms,
NEMA-driven device alerts, CO alarms, smoke alarms, low
oil pressure, and you can add to the list.

What's really needed is a thing called an announciator (sp) panel,
That's a 'thing' that tells you instantly what the alarm is, usually with
a big display (1 inch by 4 inch), and an audible 'sounder'.

Agree? Disagree?

Norm B
Sounds like a good idea, I'm sure it would be well received.
Wout
 
D

Dennis Pogson

Jan 1, 1970
0
John said:
Glen,

Here is a scarry thought.

My wife went in for LASIK surgery to her eyes. Basically it a laser
procedure where they correct your eyes for astigmatism. They use a
laser interferometer to map the surface of your eyball and them use
mathematics to work out the sequence of laser blasts to ablate the
eyball surface to generate good vision. The gave her a DVD of the
process they did on her eyes and guess what? The whole thing is
controlled by a Windoze PC. I wonder what would happen if the blue
screen of death came up in the middle of a procedure;-)

Press cntrl-alt-del for new eyeballs?
 
W

Wout B

Jan 1, 1970
0
Gert Been said:
Ehh, talking about "Decent" multiplexers: decent multiplexers have isolated
inputs, yours don't.

I just connected one of yours to a differential NMEA talker output. I can
now hear all NMEA data on my SSB!!

While trying to find out what's wrong, I found that all inputs on your
multiplexer have the B terminals connected to ground!!! NMEA inputs are
supposed to be isolated. Your grounded B terminals on the inputs effectively
short-circuit any properly designed talker. Was it that hard to add 50 cents
worth of optocouplers?

Gert
Our new multiplexers have opto-isolated inputs and are compliant with CE
emission requirements. Strange that I first hear from you via this
newsgroup. Would you not have contacted us with your complaint if you had
not come across this newsgroup thread? You say you have just installed one
of our multiplexers. I have checked our records, but we don't have you
listed as a recent direct customer.
If you have any kind of problem with a multiplexer, we'll be happy to assist
if you contact us via the normal channel. Your problem can be easily
resolved. All you need to do is send us an email and let us know where and
when you bought your multiplexer.
Wout
 
L

Larry W4CSC

Jan 1, 1970
0
Mmmm, interesting option :)
I know that the Seatalk-NMEA brigde from Raymarine has a dedicated
alarm output. But this one only works on Seatalk alarms.

A microcontroller-and-electronics hobbyist could make this for a few
bucks though...

Meindert

I feel a whole new product coming online......(c;

MAKE THE DAMNED ALARM LOUD ENOUGH TO WAKE EVERYONE ABOARD!!

Thanks....(c;

You can hardly hear a Raymarine RL70CRC alarm sitting right in front of it
in a 10 knot wind....stupid, stupid, STUPID!
 
L

Larry W4CSC

Jan 1, 1970
0
Ehh, talking about "Decent" multiplexers: decent multiplexers have
isolated inputs, yours don't.

I just connected one of yours to a differential NMEA talker output. I
can
now hear all NMEA data on my SSB!!

While trying to find out what's wrong, I found that all inputs on your
multiplexer have the B terminals connected to ground!!! NMEA inputs
are supposed to be isolated. Your grounded B terminals on the inputs
effectively short-circuit any properly designed talker. Was it that
hard to add 50 cents worth of optocouplers?

Gert

This is one of my pet peeves with most manufacturers. STupid Icom's really
expensive M-802 uses a BNC RF connector that only has ONE WIRE and ground
to hook the NMEA data to the transceiver for DSC/GMDSS GPS input. They
should all be HUNG! If everything had a balanced line like NMEA was
designed for, I could probably transmit on HF without tearing up the whole
boat's NMEA network....(d^:)
 
L

Larry W4CSC

Jan 1, 1970
0
Our new multiplexers have opto-isolated inputs and are compliant with
CE emission requirements. Strange that I first hear from you via this
newsgroup. Would you not have contacted us with your complaint if you
had not come across this newsgroup thread? You say you have just
installed one of our multiplexers. I have checked our records, but we
don't have you listed as a recent direct customer.
If you have any kind of problem with a multiplexer, we'll be happy to
assist if you contact us via the normal channel. Your problem can be
easily resolved. All you need to do is send us an email and let us
know where and when you bought your multiplexer.
Wout

Translation - "Shhhh.....don't say bad things about boat products in public
forums like newsgroups".......
 
L

Larry W4CSC

Jan 1, 1970
0
Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence
management features). Read about it here:
http://brookhouseonline.com/gps_backup_switching.htm . I have
been playing with the idea to add a buzzer to warn the user when it
switches to the backup GPS. As the "no GPS data" detection is already
present, this is very simple to do. If there is sufficient interest,
we'll include it as a standard feature. If you want it NOW, we'll add
a buzzer to the present model for a small charge if you decide to buy
one. Wout
Brookhouse
I'd rather see shielded connectors so I can run shielded pair cables and RF
bypassing of all inputs to keep the HF SSB from screwing all the NMEA crap
attached to it. Shielding everything would also make it so we could HEAR
the HF receiver and get our WEFAXes without the constant drone of NMEA
radiated interference from all the unshielded, unbalanced connections with
just open wires sticking out of things. NMEA needs to get its act together
and enforce some standards on its members....

Of course, we could dump all this proprietary crap and just wire the boat
for Ethernet, negating the need for multiplexers in 1970 serial
connections. Ahhhh....addressable Ethernet instruments all speaking the
SAME language through a good $49 wireless Netgear router to the wireless
laptop in my berth....(c;
 
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