Details
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Type:
extRequest
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Status: Closed
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Priority:
Major
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Resolution: Done
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Fix Version/s: 2021
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Component/s: FIWARE-TECH-HELP
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Labels:None
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Sender Email:
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HD-Chapter:IoT
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HD-Enabler:Cepheus
Description
Nakul sent a message using the contact form at http://catalogue.fiware.org/.
Hi,
i would like to get information regarding the Data Handling GE as in how to
integrate the DH GE into the home energy gateway and HAN collecting data from
devices and what are the benefits that could be gained from the GE in this
case, its interface compatibility with the TI Energy Gateway which uses OSGi,
is there a need for conversion of data formats?, and various other important
issues that need to be considered.
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[Created via e-mail received from: nwali@tssg.org]
Activity
Hi
> What is the use of CEP alone? Can I use it alone?
Yes, the CEP can be used alone. It does not require the Broker to be used.
Its use is totally dependent on its configuration.
If you don't associate any "providers" to incoming events, the CEP will not subscribe to a broker and expect applications to send updateContext requests directly to the CEP to trigger incoming events.
Regards,
Hi,
How shall I go about using CEP in HAN(Home Area Network) for moniroting & control purpose?, for connections to DSO.
Following shall be the analysis:
1. HAN consumption data collection &n optimization
2. Connection between DSO smart meter and Home Energy Box (Smart gateway)
3. Data privacy assurance
Regards.
Hi,
I have no knowledge of how the "DSO smart meter" communicates with the Home Energy Box(HEB), where I suppose you intend to run the CEP. So I suppose in my answer that the DSO smart meter is able to communicate over HAN to the HEB.
But I can foresee two scenario :
- either the DSO Smart Meter is modified to send to the CEP hosted on the HEB the HTTP/NGSI updateContext requests containing the sensors data.
- either the DSO Smart Meter is using a custom protocol and cannot be modified, in which case you need some additional component hosted on the HEB to translate this custom protocol to NGSI.
This can be done by using the IoT Agent library (https://github.com/telefonicaid/iotagent-node-lib), which is a small NodeJS library, to build "protocol adapters" which we also call "IoT Agents".
We have build a custom IoT Agent for testing purposes (https://github.com/Orange-OpenSource/fiware-cepheus/tree/linksprite-ngsi) and Telefonica has build several IoT Agents for different protocols (see https://github.com/telefonicaid/?utf8=%E2%9C%93&query=iotagent)
The CEP does not currently do any authentication/authorization control on the TCP port it exposes (default: 8080). So it should not be directly exposed to the HAN.
> How shall I go about using CEP in HAN(Home Area Network) for
> moniroting & control purpose?, for connections to DSO.
> Following shall be the analysis:
>
> 1. HAN consumption data collection &n optimization
> 2. Connection between DSO smart meter and Home Energy Box (Smart gateway)
> 3. Data privacy assurance
Thanks.
How would be interaction between CEP and OSGI DAL (Data Abstraction Layer) ?
Regards.
Hi,
Sorry for the late answer.
We don't see any relation between the OSGI Dal and the CEP.
Maybe you could open another issue if you have more issues the CEP.
Regards,
Marc
Hi,
You need a converter NGSI to communicate with the DH GE.
This converter can be developed with our Java NGSI common library https://github.com/Orange-OpenSource/fiware-cepheus/cepheus-ngsi
Our GE can consolidate your data by using the CEP Engine.
Don't hesitate to contact us for more information.