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Old 28-02-2013, 07:08   #181
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Re: 12vdc Marine Computers

you might try an automotive 12v regulator like
Rareelectrical.com - NEW 12V DUCELLIER VOLTAGE REGULATOR 5190004 8358 8367 73788 AYB216 AYB217 AYB219

or a computer specific one like
DC-DC selector

I use the later to power my boat nav computer, although my monitor is a Toughbook touch screen which runs just fine straight off of my boat's 12v house bank.
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Old 28-02-2013, 07:44   #182
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Re: 12vdc Marine Computers

Quote:
Originally Posted by skipmac View Post
All the laptops I have had have a key on the main keyboard that allows switching from the laptop screen to an external monitor. Is that your setup, the screen on the laptop below with an external monitor connected to the VGA output on the laptop? In that case easy to switch from one to the other just using the keyboard.

Then if you are having problems with the screen in the cockpit blanking out go to the setup screen on your laptop and disable the power saving feature that blanks out the monitor. Then it will stay on until you turn off the computer.
Thanks, (also to W32Pamela) for the reply.

After trying most of the function keys on my Latitude 630, I came to one labeled CRT/LCD. It cycles between both screens, Aux screen and Main screen. I could have read the manual, but it's long gone. In fairness I goodled the manual but didn't find any thing about Aux screens

Thanks again
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Old 28-02-2013, 10:35   #183
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Re: 12vdc Marine Computers

Quote:
Originally Posted by wdkester View Post
Thanks, (also to W32Pamela) for the reply.

After trying most of the function keys on my Latitude 630, I came to one labeled CRT/LCD. It cycles between both screens, Aux screen and Main screen. I could have read the manual, but it's long gone. In fairness I goodled the manual but didn't find any thing about Aux screens

Thanks again
Oh you must not be as old as me.

CRT, Cathode Ray Tube, from back in the last century before flat panel screens and monitors when TVs and computer monitors were big, fat, hulking devices.

Yep, that's the button. Should solve your problem for which screen.

But have you figured out how to stop the cycling off? Know how to get into the setup or power management settings to make the monitor stay on?
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Old 01-03-2013, 11:03   #184
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Re: 12vdc Marine Computers

Quote:
Originally Posted by skipmac View Post
Oh you must not be as old as me.

CRT, Cathode Ray Tube, from back in the last century before flat panel screens and monitors when TVs and computer monitors were big, fat, hulking devices.

Yep, that's the button. Should solve your problem for which screen.

But have you figured out how to stop the cycling off? Know how to get into the setup or power management settings to make the monitor stay on?
I think I have the problems solved on my XP system:

1. Control Panel>Power Management>Turn Off Monitor=Never and System Standby=Never
2. Control Panel>Display>Screen Saver>Wait= very large number
3. Fn - CRT/LCD (F8) to turn off main display for power saving

The first CRT used with a computer, that I personally witnessed, was the console for the Control Data 6600 in 1965. I think the console sold for $100,000, and the system for $6,000,000. At that time TTY's (Teletype machines) were used as terminals. The first CRT (in my experience) used as a terminal was used with PLATO education system and I think they sold for $10,000. I imagine that the military used CRT's, perhaps for fire control, earlier than this.

I think it ironic that HP would label a key with a term that the vast majority of us would not understand. When I first saw the key I thought that it meant to choose between a CRT monitor and an LED monitor. "And so it goes."
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Old 01-03-2013, 13:59   #185
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Re: 12vdc Marine Computers

Quote:
Originally Posted by wdkester View Post
I think I have the problems solved on my XP system:

1. Control Panel>Power Management>Turn Off Monitor=Never and System Standby=Never
2. Control Panel>Display>Screen Saver>Wait= very large number
3. Fn - CRT/LCD (F8) to turn off main display for power saving

The first CRT used with a computer, that I personally witnessed, was the console for the Control Data 6600 in 1965. I think the console sold for $100,000, and the system for $6,000,000. At that time TTY's (Teletype machines) were used as terminals. The first CRT (in my experience) used as a terminal was used with PLATO education system and I think they sold for $10,000. I imagine that the military used CRT's, perhaps for fire control, earlier than this.

I think it ironic that HP would label a key with a term that the vast majority of us would not understand. When I first saw the key I thought that it meant to choose between a CRT monitor and an LED monitor. "And so it goes."
Well I take that back. You might be just a year or two older than I. Can't remember for sure the model but first terminal I used was at Georgia Tech in 1967 while writing programs in basic on punch cards.

Long program on punch cards might have been the original use of the term "stack".

And we still used slide rules. OMG I feel ancient.
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Old 01-03-2013, 14:34   #186
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Re: 12vdc Marine Computers

IBM 360 with Fortran Punch Cards?
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Old 25-03-2013, 12:48   #187
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Re: 12vdc Marine Computers

Interesting hardware, a little expensive
Liquidware : Shop

Has acceleration sensors and fluxgate compass with aurdino (sp?) which can also be used as a nmea data collector. - Cheap fluxgate compass build yourself. Also GPS module.
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Old 25-03-2013, 13:26   #188
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Re: 12vdc Marine Computers

Quote:
Originally Posted by rgleason View Post
IBM 360 with Fortran Punch Cards?
Remember we used to code in assembler, COBOL, PL1 eventually RPG ......

Those days are gone
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Old 25-03-2013, 13:30   #189
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Re: 12vdc Marine Computers

Quote:
Originally Posted by AISEAG View Post
Remember we used to code in assembler, COBOL, PL1 eventually RPG ......

Those days are gone

wrote some Atmel Assembler just yesterday!

Dave
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Old 25-03-2013, 13:31   #190
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Re: 12vdc Marine Computers

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Originally Posted by AISEAG View Post
Remember we used to code in assembler, COBOL, PL1 eventually RPG ......

Those days are gone
The luxury of assembly! I started with 6800 opcodes and operands

I now wonder where Zilog went because I also spent much time coding Z80 CPU's...
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Old 26-03-2013, 20:53   #191
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Re: 12vdc Marine Computers

Quote:
Originally Posted by AISEAG View Post
Remember we used to code in assembler, COBOL, PL1 eventually RPG ......

Those days are gone
Remember? I still make a living coding RPG and have for over 25 years.

-dan
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Old 20-05-2013, 11:42   #192
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Re: 12vdc Marine Computers

From conachair

New low power computer out soon
Might be interesting for running Opencpn, no data on actual power consumption yet though..

Anyone know anything about them?

UDOO: Android Linux Arduino in a tiny single-board computer
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Old 20-05-2013, 17:13   #193
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Re: 12vdc Marine Computers

@rgleason
ARM based setup... Will require building OpenCpn against a ARM based distro which I am sure has been covered somewhere in this thread. (11 pages, I started at this end).

ARM has the advantage of being very low power especially if you are wanting to run a single dedicated application eg: OpenCpn

Here is a system I have been considering building, if I get the time and cash. Refitting an older vessel, so need most of the gear anyway, and would like the advantage of OpenCpn for planning and DR confirmation. Still use paper charts always, and even own (and use once a day) a sextant.
Will probably build against the laptop then change over to the CuBox when I get the initial bugs worked out. Be warned, the CuBox is sold as an "Engineering Development Platform" so your mileage may vary, and lead to pulling of hair, and over consumption of adult beverages.

Computer (CuBox) 3 Watts
GPS Receiver ( GlobalSat MR350) <0.06 Watts
VHF Radio / Ais Rcvr / GPS Display (Standard Horizon GX2150) Rcv Mode 6.6 Watts
16" Monitor (AOC e1649Fwu) 8 Watts
Keyboard / Mouse (Logitech wireless MK320) <0.05 Watts
Powered 4 port usb hub (power pass thru for monitor)
10-14V to 5V 15A Buck Converter Power Supply 3.6 Watts (no load)

Total theoretical load 18.85 Watts or 1.6A @ 12V

Not bad for Radio, GPS, AIS (rcv only), and a computer running OpenCpn.
PolarCom does not have a binary built against an ARM distro but I have contacted PolarNavy requesting they build a binary of both PolarCom and PolarView against an ARM based linux distro.

The AOS monitor is pretty slick. Power over usb but needs two ports due to 8W draw. Thats the reason for the powered hub, primarily to drive the display. Uses DisplayLink driver which is a native linux kernel driver for a while now. Open source libdlo if its not in your distro. Since power adapters provided by both CuBox and whoever you get your USB hub from are 120V ac to 5V dc I included a separate DC buck converter that accepts input from 10-14 Vdc with 5Vdc output. Auto-shutdown under 10V or over 15.5. This is a "bare-board" so will require some sort of enclosure. Everything else is cased (CuBox is cool, 2x2x2 cube) and the GX2150 is IPV6 so it will live in the cockpit as a GPS/AIS repeater while the 16" display will be bulkhead mounted below.

Interested in any comments about this setup. Total cost with all new parts, ~$700 US
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Old 20-05-2013, 19:33   #194
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Re: 12vdc Marine Computers

rgleason,

Have you seen this thread in the OpenCPN Forum?

OpenCpn Install on Android Tablets Easier Now.

armido
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Old 20-05-2013, 22:41   #195
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Re: 12vdc Marine Computers

Quote:
Originally Posted by capt-couillon View Post
@rgleason
.........
16" Monitor (AOC e1649Fwu) 8 Watts
.........
The AOS monitor is pretty slick. Power over usb but needs two ports due to 8W draw. Thats the reason for the powered hub, primarily to drive the display. Uses DisplayLink driver which is a native linux kernel driver for a while now. Open source libdlo if its not in your distro.
..........
Interested in any comments about this setup. Total cost with all new parts, ~$700 US
This USB monitors power consumption looks good, but I would be concerned that there would not be enough processing power to run the display-link with OpenCPN on the CuBox.
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