[PSUBS-MAILIST] Environment and Control software

Tue Aug 11 09:19:18 EDT 2015

Thank you Alan.

Lasse Schmidt Westrén
Upplevelsepresent.se<http://Upplevelsepresent.se>
Skeppsbron 21, Tullhus 1
11130 Stockholm
070-28 32 660

11 aug 2015 kl. 02:23 skrev Alan James via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>:

Lasse,
in the ABS rules for classing & building underwater vehicles etc.
Section 9, piping systems & mechanical equipment.
 TABLE 1 Color Codes for Piping and Gas Storage Bottles Name Designation Color Oxygen O2 Dark Green Nitrogen N Light Gray Air (Low Pressure) ALP Black Air (High Pressure) AHP Black Helium He Buff Helium-Oxygen Mix He-O2 Buff and Dark Green Exhaust E Silver.
Sorry the copy & paste didn't turn out well, the above was in a table form.
It also says that other color codes can be used. It doesn't talk about the valves
themselves, but these would be required to be labeled.
I am sure DNVGL would have similar in their piping section.
Alan

________________________________
From: Lasse Schmidt via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>
Sent: Tuesday, August 11, 2015 8:39 AM
Subject: Re: [PSUBS-MAILIST] Environment and Control software

Very interesting link, thank you Alan.
Is there color coding guidelines for valves and control knobs as well on subs?
I´m thinking of colors for air valves, water valves etc.

Thanks
Lasse

10 aug 2015 kl. 22:23 skrev Alan James via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>:

Sean, Jon,
presume it's this guide dealing with ships
http://www.eagle.org/eagleExternalPortalWEB/ShowProperty/BEA%20Repository/Rules%26Guides/Current/86_ApplicationsofErgonomicstoMarineSystems/Pub86_ErgoMarineSystems
Great stuff, I will use this document as a guideline.
Jon, you are doing a fantastic job documenting this.
I will need to start on this within the next 6 months so are following
with interest.
Alan

________________________________
From: Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>>
Sent: Tuesday, August 11, 2015 8:12 AM
Subject: Re: [PSUBS-MAILIST] Environment and Control software

The ABS ergonomics guide has some info about alarm colours, sounds and behaviour which might be useful.
Sean

On August 10, 2015 1:39:02 PM MDT, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>> wrote:

HI Cliff, thanks for the feedback.  Alarms are located on the left side
under the yellow/black warning graphic.  Each one functions as both an
alert and alarm.  For example, a yellow alert lights up "DEPTH" at 500
feet to warn of approaching maximum depth.  At 600 feet it turns into a
red alarm.  These alerts and alarms can only be disengaged by retreating
back to a non-alarm operating environment (ie.. decreasing depth to less
than 500 feet).  Audio alerts will accompany the visual ones.

Depth is available on all displays in the lower left corner.  Data
logging is included and can be written to a USB drive and 'replayed' on
any other computer that has the same software on it or even imported
into something like a spreadsheet.  However, if I end up with a tablet I
will likely log there directly.

Battery information will be added when I get those sensors.  This design lends itself well to semi-automated control, for example typing in a
target depth of 100 feet and then letting the computer operate the
motors and monitor vertical rate of descent/ascent, slow down when
approaching the target depth, and then shutting off the motors at/near
target depth.

A more distant and advanced project would be, I don't know, maybe
inertial navigation using an IMU.

Jon

On 8/10/2015 12:19 PM, Cliff Redus via Personal_Submersibles wrote:

Jon, your first pass at HMI for your boat looks good. I like the
overall layout and data seems to be presented in logical and
straightforward manner. I think it would easy for someone other than
yourself to get the state of the boat from this HMI.

On your DIVE panel, I would add a couple of items. ! The first is the
battery SOC and air SOF(state of Fill, 0-100%). These are key
items for the home screen. Also, I would add a proximity switch on
hatch so that the hatch state is shown. This can also be used to
lockout diving the boat unless the hatch switch is closed. Also I
would add Altitude. Airmar has a sensor called the DST800 that gives
boat speed, depth (altitude) and water temperature. Signals comes in
as a RS-232 ASCII string that you parse. On the NAV screen, I would
include depth and altitude. On HIST screen, rather than looking at
min and max on key variable's, I would recommend that up set up data
logging and log all ship systems say every minute. Most PLCs and
associated HMIs have data logging capabilities. This allows you to
download all sensor measurements and switch states as a function of
time. This is useful to analyze how the boat performed after the dive
and also serves a Black Box for the sub. I did not see any alarm
database. Need to be able to see and hear and audible alarms an such
items as low air pressure, O2 and CO2 out of range ...

Best regards

Cliff

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