Re: Re: Consensus on BSC temperature reporting?

[Gregg Liming <gregg@xxxxxxxxxxx>]

Hi Lehane,

Quoting Lehane Kellett (8/29/06 3:44 PM):
> Gregg Liming wrote:
>> Quoting Lehane Kellett (8/29/06 1:01 PM):
>>
>>> OK - so how about new classes - sensor.report and sensor.cmd?
>>>
>>> Devices could be simple (one wire) or complex (complete CH
system).
>>>
>>
>> One reaction that I had is that it appears that each sensor.report
>> message has a single body.  Is that correct?  I am asking as a
result of
>> having wrestled w/ how to treat one of my physical devices that
reports
>> both humidity and temperature (the chip itself does that).  For
the time
>> being, I've decided to "virtualize" this single device
into multiple
>> subaddresses--each having their own xAP UID.  While that keeps the
>> mapping of single block to single device clean, it does cause some
>> complications--among them having to track multiple UIDs to single
real
>> device (which often has it's own real ID).  It also means that the
>> reporting interval is somewhat arbitrary from a command standpoint
in
>> that both ought to give out their values together.  On the other
hand,
>> it does make sense from an event standpoint (vice info) as one of
the 2
>> measurements passed some delta (change) and not both
>>
>
> I prefer not to virtualise for the reasons you stated and the
complexity
> is in the sensor - possibly a
> small device. In most cases determining which value has changed is
> trivial in the recipient,
> assuming you actually need to.
>
> However, I'd have no problem with the concept if that was the
consensus.

Well, to be honest, having multiple sections reporting different sensed
values as well as handling intantaneous vs averaged values makes things
far easier.  Since we're not talking about BSC here (which my
understanding would prevent this sort of a concept), then the multiple
section concept is quite plausible?

FWIW: My comment above regarding a "forced virtualization" was to
be
compliant w/ my interpretation of BSC.  If that's not necessary, then
I'd definitely like to know as it can be a nuisance.

Gregg