[PSUBS-MAILIST] Environment and Control software

[Alan James via Personal_Submersibles]

Sean, Jon,presume it's this guide dealing with shipshttp://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 followingwith interest.Alan
      From: Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <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> 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. ! Thefirst 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 
 andalso 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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