Inspired from the XMPP lounge hacking at FOSDEM, where we had Philips Hue
lamps connected to Beatles music over the xmpp network. Loads of interested
people where playing with the lamps.
Couldn't we on the 9th of april 2015 which is the global IoT day, connect
color lamps all over the world controlled from London with lloyd's music
feed? I can setup most of the turorial.
Each lamp friending music_master@controller or join the Disco MUC room
receives individual messages and own symbols/nicks on the youtube channel
sending the music and Visualisation stream.
Then an https://talky.io/XMPP_world_disco session from all sites
*Regards*
Joachim Lindborg
CTO, systems architect
Sustainable Innovation SUST.se
Barnhusgatan 3 111 23 Stockholm
Email: Joachim.lindborg(a)sust.se
linkedin: http://www.linkedin.com/in/joachimlindborg
Tel +46 706-442270
Hi,
I was wondering if anyone has considered of adding semantics to the IoT XMPP specs?
I’m particularly interested in ways to add semantics to the IoT discovery XEP.
Paragraph 5.2 of the XEP (https://xmpp.org/extensions/xep-0347.html#tags <https://xmpp.org/extensions/xep-0347.html#tags>) describes a set of meta tags that can be used to describe things as it does put some limits on the values you can set. But I would like to link the meta-data to some sort of semantic ontologies (RDF). I then want to use that data to enable ’smarter’ queries to the registry (ie. sparql like queries).
Is there any known work in this area?
If I have any results of myself in this field I will share it on this list.
Thanks,
Eelco
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Hi,
I'm going through the IoT discovery XEP (XEP-0347). In chapter 3.17 (disowning Thing) the following is stated:
> If such a Thing is found, and it is owned by the caller, but not online as a friend, the Thing cannot be disowned, since it would put the Thing in a state from which it cannot be re-claimed. Therefore, the Thing Registry must respond in the following manner:
I am wondering about the piece "but not online as a friend". A "friend" of whom? How should this be checked?
Wouldn't it be more practical to determine this situation by just sending the disowned IQ message to the Thing?
When the server responds with a service-unavailable message it can be assumed that the thing is currently offline (or at least unavailable). Otherwise there always should be a friendship relation between the thing and the registry.
Cheers,
Eelco
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