[PSUBS-MAILIST] SCMv2 - Submarine Control Manager
Jon Wallace via Personal_Submersibles
personal_submersibles at psubs.org
Tue Apr 12 11:51:48 EDT 2016
Yes, I read that section also but none of these alarms are related. I
like your logic so I'm going to leave them randomized. I also like that
choice because I don't have to go in and change any code. :)
Jon
On 4/12/2016 11:10 AM, Sean T. Stevenson via Personal_Submersibles wrote:
>
> It does say that multiple related failures (alarms associated with a
> single subsystem failure) should be indicated by a single alarm,
> rather than relying on the operator to deduce a system failure from
> multiple simultaneous alarms. I don't think synchronisation of the
> flashes matters at all, but if the alarms are unrelated, I would be
> inclined to leave them offset versus synchronising them (other than
> the audible signal if modulated), because I would tend to
> subconsciously associate synchronised indicators with a common source
> of failure. If software controlled and indicated, it's a no brainer to
> do it either way. With physically illuminated switches, flashing
> indicators are accomplished by switching lamps with electromechanical
> or solid state relays, which is probably why ABS left it open. If it
> were up to me, I would synchronise related alarms and randomize
> unrelated ones.
>
> Sean
>
>
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