[PSUBS-MAILIST] Environment and Control software

Mon Aug 10 16:12:48 EDT 2015

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.  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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