[Fiware-iot] General idea for Actuation

[Tobias Jacobs]

Hi,

Thanks for your answer, Fermin! On the level of the NGSI protocol this certainly makes sense and I would agree to it.

What we all have more or less in mind I for the new task (I think) is a model to describe higher-abstraction actuation tasks, which are then realized as concrete commands. For example, for setting the building temperature into a certain status one would have to trigger several other actuators, or maybe even use sensor readings. This requires a kind of model about how the different sensors and actuators relate to the more abstract entities. Maybe semantics can help here? Do you have any experience with this stuff, Tarek?

Best regards
Tobias


From: Fermín Galán Márquez [mailto:fermin.galanmarquez at telefonica.com]
Sent: Donnerstag, 25. September 2014 16:53
To: t.elsaleh at surrey.ac.uk
Cc: Tobias Jacobs; fiware-iot at lists.fi-ware.org; m.bermudez at surrey.ac.uk
Subject: Re: [Fiware-iot] General idea for Actuation

Dear Tarek,

Not sure in which context are you refering to actuation, but, from a NGSI perspective, the vision is the following (very well exposed by Juanjo during FI-CORE kickoff and summarized in http://www.slideshare.net/flopezaguilar/introduction-to-fiware-open-ecosystem, slide 20).

The idea is to use NGSI updates with "side effects". So, sensors with actuation capability will expose update context NGSI operation service for given context element (e.g. "lamp.status") so when that context element is updated ("lamp.status = on") that causes the desired actuaion (the lamp is turn on).

In some sense, this is analogous as SNMP works, when set operations in given OIDs allow to reboot a network device or reset an statistics counter. In this sense, our aim is that NGSI will become in "the SNMP of the IoT world".

Best regards,

------
Fermín
El 24/09/2014 13:55, t.elsaleh at surrey.ac.uk<mailto:t.elsaleh at surrey.ac.uk> escribió:
Hello Tobias,

I would like to get a better idea on what the goal(s) is in terms of actuation. Are going to address autonomous actuation, as a result of a particular event? e.g. if X and Y happen, then do Z.

Best regards,
Tarek





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