I'm not really happy with todays HUDS..

JS1scuba · 8th May 2008, 06:30

Quote: (Originally Posted by aainslie)

Hmmm - I'm extrapolating a little here Joel but I assume that the black means this is a group of GUE divers doing unified team drills... so they're putting that disco ball on the RB80?

Cool!

Andrew, you gave that much more thought than i ever would have.

cheers
jds

Rickoz · 8th May 2008, 09:59

What's wrong with GREEN is Good & REDis Bad,
(RED) Slow Flash too Low, Fast Flash Too High.
Arr damit the SubSea already does this

Rickoz

David Pye · 8th May 2008, 13:02

My only dislike for 'constant green is good' is that for all I know, the control loop of whatever piece of kit updates it might have just frozen, so it will stay green forever.

Bruce has a good article on his site about why a fire alarm bell makes a poor alarm system - if the signs for something being 'not in alarm' are the same
as something being broken, then it's a poor alarm. I admit I feel the same about HUDs with constant LEDs, but then again, I now have a three-led HUD with the smithers code on it

WD8CDH · 9th May 2008, 17:23

My HUD has a GREEN double flash from bright to dim "heartbeat" for good.

Steady medium RED to the right and the GREEN "heartbeat" for near the high limit but still safe.

Long bright flash RED for high PO2. (1 second on 1/4 second off)

Steady medium RED to the left and the GREEN "heartbeat" for near the low limit but still safe.

Short bright flash RED for low PO2. (1/4 second on, 1 second off)

There are two additional red leds on each side. All six red leds do the side to side "Cylon Warrior" light show if PO2 is out of limit for more than 10 seconds.

I am using a PIC controller and it is independant of the regular PO2 displays. The HUD electronics can also drive a vibrator for a tactile alarm.

This has been the most intuitive that I have come up with. I usually set the "near low limit" to where I would normally manually add O2. This is on a home built mCCR.

Konaquatica · 10th May 2008, 03:27

I dive a lot of different HUDs and find them all to be useful and functional; however due to force of habit, I am still checking my displays at regular intervals, even in a wreck, cave, etc. The one that I still like the best, which comes closest to so many diver's wish-list is the Cis-Lunar HUD, complete with PO2 monitoring, Deco indicator and System warnings.

paulraymaekers · 10th May 2008, 08:19

Quote: (Originally Posted by David Pye)

My only dislike for 'constant green is good' is that for all I know, the control loop of whatever piece of kit updates it might have just frozen, so it will stay green forever.

Bruce has a good article on his site about why a fire alarm bell makes a poor alarm system - if the signs for something being 'not in alarm' are the same
as something being broken, then it's a poor alarm. I admit I feel the same about HUDs with constant LEDs, but then again, I now have a three-led HUD with the smithers code on it

hello Dave, the probability of having 2 systems that freeze at the same moment, is .... ??
we use the 'constant green' for safe AND optimal, and have 2 completely independant HUD's, so the risk of not noticing a frozen HUD is ... zero!

as far as I know, I NEVER heard of a frozen rEvodream ever.

paul

WD8CDH · 13th May 2008, 20:41

The reason that my HUD green LED pulses is so I know it isn't frozen. It's a PWM brightness modulation triggered by the watchdog timer.

Funny thing, my HUD has a lot more smarts and electronics than my primary display. My primary display only has 3 - 3 1/2 digit voltmeter modules with 10K pots for calibration and I only use the last 3 digits so I don't need amplifiers. I scale down the cells to 2.1 mV for .21 PO2.

stocky_de · 5th June 2008, 22:31

The reason why I am not really happy with my HUD (Submatix) is that I can not always see it. Depending how you bite onto your mouth piece the HUD disapears out of sight. My wish would be to have hight extensions so you could place it into your optimal vison corner.

8th May 2008, 06:30	#21 (permalink)
JS1scuba RebreatherWorld Sponsor Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss MK 15.X Join Date: Oct 2005 Location: Lake Havasu City, AZ - USA Posts: 417	Re: I'm not really happy with todays HUDS.. Quote: (Originally Posted by aainslie) Hmmm - I'm extrapolating a little here Joel but I assume that the black means this is a group of GUE divers doing unified team drills... so they're putting that disco ball on the RB80? Cool! Andrew, you gave that much more thought than i ever would have. cheers jds __________________ Joel Silverstein, VP COO Tech Diving Limited a Division of Scuba Training and Technology Inc. http://www.nautilusdiveplanner.com FREE NAUTILUS DIVE PLANNER DEMO - REGISTER HERE KISS # 275
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8th May 2008, 09:59	#22 (permalink)
Rickoz KISS Rebreather Pilot 109 Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: Australia Posts: 135	Re: I'm not really happy with todays HUDS.. What's wrong with GREEN is Good & REDis Bad, (RED) Slow Flash too Low, Fast Flash Too High. Arr damit the SubSea already does this Rickoz __________________ KISS Rebreather Pilot 109
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8th May 2008, 13:02	#23 (permalink)
David Pye CK 69+Shearwater Pursuit Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: May 2006 Location: Newcastle Upon Tyne Posts: 155	Re: I'm not really happy with todays HUDS.. My only dislike for 'constant green is good' is that for all I know, the control loop of whatever piece of kit updates it might have just frozen, so it will stay green forever. Bruce has a good article on his site about why a fire alarm bell makes a poor alarm system - if the signs for something being 'not in alarm' are the same as something being broken, then it's a poor alarm. I admit I feel the same about HUDs with constant LEDs, but then again, I now have a three-led HUD with the smithers code on it
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9th May 2008, 17:23	#24 (permalink)
WD8CDH New Member Current Rebreather/s: MK 15.X Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Dec 2007 Location: NY Posts: 54	Re: I'm not really happy with todays HUDS.. My HUD has a GREEN double flash from bright to dim "heartbeat" for good. Steady medium RED to the right and the GREEN "heartbeat" for near the high limit but still safe. Long bright flash RED for high PO2. (1 second on 1/4 second off) Steady medium RED to the left and the GREEN "heartbeat" for near the low limit but still safe. Short bright flash RED for low PO2. (1/4 second on, 1 second off) There are two additional red leds on each side. All six red leds do the side to side "Cylon Warrior" light show if PO2 is out of limit for more than 10 seconds. I am using a PIC controller and it is independant of the regular PO2 displays. The HUD electronics can also drive a vibrator for a tactile alarm. This has been the most intuitive that I have come up with. I usually set the "near low limit" to where I would normally manually add O2. This is on a home built mCCR. __________________ Ron Schroeder Former Commercial Diver, now Lazy Diver
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10th May 2008, 03:27	#25 (permalink)
Konaquatica RebreatherWorld Sponsor Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Optima Other CCR Other Rebreather/s: Inspiration Vision Evolution Prism Topaz Classic Kiss MK 15.X Other CCR Join Date: Jul 2006 Location: Kailua-Kona, Hawaii The Big Island Posts: 29	Re: I'm not really happy with todays HUDS.. I dive a lot of different HUDs and find them all to be useful and functional; however due to force of habit, I am still checking my displays at regular intervals, even in a wreck, cave, etc. The one that I still like the best, which comes closest to so many diver's wish-list is the Cis-Lunar HUD, complete with PO2 monitoring, Deco indicator and System warnings. __________________ Hawaii's Rebreather & Tech Headquarters - Megalodon, O2ptima, KISS, Inspiration & Evolution authorized dealer. IANTD Platinum Facility CCR Trimix Instructor "Experience Your Diving Dreams At Konaquatica" www.konaquatica.com Last edited by Konaquatica : 10th May 2008 at 04:04.
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10th May 2008, 08:19	#26 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,384	Re: I'm not really happy with todays HUDS.. Quote: (Originally Posted by David Pye) My only dislike for 'constant green is good' is that for all I know, the control loop of whatever piece of kit updates it might have just frozen, so it will stay green forever. Bruce has a good article on his site about why a fire alarm bell makes a poor alarm system - if the signs for something being 'not in alarm' are the same as something being broken, then it's a poor alarm. I admit I feel the same about HUDs with constant LEDs, but then again, I now have a three-led HUD with the smithers code on it hello Dave, the probability of having 2 systems that freeze at the same moment, is .... ?? we use the 'constant green' for safe AND optimal, and have 2 completely independant HUD's, so the risk of not noticing a frozen HUD is ... zero! as far as I know, I NEVER heard of a frozen rEvodream ever. paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
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13th May 2008, 20:41	#27 (permalink)
WD8CDH New Member Current Rebreather/s: MK 15.X Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Dec 2007 Location: NY Posts: 54	Re: I'm not really happy with todays HUDS.. The reason that my HUD green LED pulses is so I know it isn't frozen. It's a PWM brightness modulation triggered by the watchdog timer. Funny thing, my HUD has a lot more smarts and electronics than my primary display. My primary display only has 3 - 3 1/2 digit voltmeter modules with 10K pots for calibration and I only use the last 3 digits so I don't need amplifiers. I scale down the cells to 2.1 mV for .21 PO2. __________________ Ron Schroeder Former Commercial Diver, now Lazy Diver
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5th June 2008, 22:31	#28 (permalink)
stocky_de New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Apr 2008 Location: Germany Posts: 13	Re: I'm not really happy with todays HUDS.. The reason why I am not really happy with my HUD (Submatix) is that I can not always see it. Depending how you bite onto your mouth piece the HUD disapears out of sight. My wish would be to have hight extensions so you could place it into your optimal vison corner.
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