Author: maestro

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Replaced CONTRIBUTORS.MD by CONTRIBUTORS.yaml

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Now in the root of every subject, you can find only the file CONTRIBUTORS.yaml with the current contributors to the data model of the subject.

The old file CONTRIBUTORS.md is being removed.

CONTRIBUTORS.yaml is a structured format that allows automatic treatment globally across the initiative. It compiles the full name of the contributor, his/her organization, and their project and comments if necessary.

If you keep seeing it is because you are not looking at the master branch but in a specific commit (like it happens in the submodules). We update the branches in submodules daily, so tomorrow it will not appear unless you want it to go to former commits.

See one example.

 

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Automated README.md for data models

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Currently, the README.md at data models level (inside every directory in a Subject) explaining the contents of the data models is automated, and therefore there is no need to be contributed by the contributors. See an example here for the weather forecast.

Thus, the README.md is based on the examples provided, the specification and the model.yaml.

Soon the README.md for the Subject will be also automated.

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Incubated data models

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if you are browsing the repository you can realise that now there are several data models ended with the term ‘_incubated’.
This suffix denotes that there will be ‘soon’ a new data model.
The readme in the folder points to the repository where this data model is being created.

Once finished (all the docs, examples, etc) the _incubated suffix will be removed and the data model will be fully included into the data models.
some examples:

Floor_incubated

BuildingType_incubated(published 30-11-21)

PhreaticObserved_incubated (published 31-5-2021)

RainFallRadarObserved_incubated (published 10-5-2021)
etc

 

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Survey to the users of smart data models

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This is the first survey to the USERS of the Smart Data Models. We want to know what is more important to you and try to prioritize our efforts. This is an agile initiative, therefore we will take into very consideration your comments. Your survey is anonymous although if you wish you can include your email in comments and we will contact you regarding your comments.

You can answer it here.

    Are you, or your organization, a user of FIWARE platform (any enabler)

    YesNoDo not know

    [group user-fiware-group]

    What elements of the data models are useful for you:

    The json schema. See an example

    Very usefulSomehow usefulNot useful

    The examples of payloads. See an example

    Very usefulSomehow usefulNot useful

    The specification. See an example

    Very usefulSomehow usefulNot useful

    Other elements. Specify Which one/s

    Very usefulSomehow usefulNot useful

    [/group]

    [group not-user-fiware-group]

    Are you interested on the smart data models?

    YesNoDo not knowOther
    Explain other

    Why don't you use FIWARE platform?

    I do not need itIt is complicatedNot yetOther
    Explain other
    [/group]

    [group do-not-know]
    Please choose the more likely (Yes / No)
    [/group]

    Other recommendations or comments about your answers

    How do you describe yourself

    A developerAn end userA project managerA manager

    Soon there will be another survey for the CONTRIBUTORS.

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    New data models for Photovoltaic Device

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    In the harmonization repository, there is a new model name photovoltaic Device. To be completed previously to be incorporated. You can submit an issue on it if interested.

    The Data Model is intended to describe the mechanical, electrical and thermal characteristics of photo-voltaic panels according to : – STC – Standard Test Condition – Sunshine 1000 Wm² / Radiation 1.5 AM / Temp 25° Celsius / Air Masse 0 m/s. – NOCT – Normal Operating Cell Temperature
    – Sunshine 800 Wm² / Radiation 1.5 AM / Temp 20° Celsius / Air Masse 1 m/s.

    The measures performed for STC and NOCT are – [Pmax] Maximum Nominal Power measured in WTT represents Watt.. – [Umpp] Optimal operating voltage measured in VLT represents Volt. – [Impp] Optimal Operating Current measured in AMP represents Ampere. – [Uoc] Open Circuit Voltage measured in VLT represents Volt. – [Isc] Short Circuit Current measured in AMP represents Ampere.

    Additional Information about Data Model: This Data Model can be used directly as the main entity to describe the device [PHOTOVOLTAIC] or as a sub-entity of the Data Model [DEVICE] using a reference by the refDevice attribute.

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    New data models on Energy

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    There are two data models coming for the Energy domain (ACMeasurement and InverterDevice). You can submit an issue on it if interested.

    Once harmonized with the contributors and checking the interaction with other data models they will be incorporated into the Energy repository inside the domain of Smart Energy.

    ACMeasurement

    The Data Model intended to measure the electrical energies consumed by an electrical system which uses an Alternating Current (AC) for a three-phase (L1, L2, L3) or single-phase (L) and neutral (N). It integrates the initial version of the data Modem [THREEPHASEMEASUREMENT], extended to also perform single-phase measurements. it includes attributes for various electrical measurements such as power, frequency, current and voltage.

    Additional Information about Attributes : For some attributes such as current and voltage the value is a structured value with properties for the Single-Phase (L) or three different phases (L1, L2 and L3). For some measurements such as the different power types (active, reactive and apparent power) there is an attribute for the total from all phases. The rules are defined as below : – Three Phase – Total = L1 + L2 + L3 – Single Phase – Total = L.

    For most of the attributes, there are various ways they can be actually measured. For this purpose the measurementType Meta Data Attribute can be used. It can have the following values:

    When using the values [average, rms, minimum, maximum], another metadata attribute called measurementInterval should be used to give the length of the measurement period in seconds. Also the Meta Data timestamp attribute should be the end time of the measurement period.

    InverterDevice

    The Data Model is intended to describe the mechanical, electrical characteristics of an Inverter according to DC – Direct Current Information supplied as input and AC – Alternating Current Information returned as output.

    Additional Information about Data Model: This Data Model can be used directly as the main entity to describe the device [INVERTER] or as a sub-entity of the Data Model [DEVICE] using a reference by the refDevice attribute.

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    New harmonization repository

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    In order to provide a more transparent and participative approach to the creation and maintenance of data models, here you can see the three stages for a usual data model to be part of the official list of data models.

    1.- Pending is the ‘wild’ zone where developers share their thoughts and create their data models. When finished (ready) they can create a PR on the right Subject repository.

    2.- Harmonization is the repository for those new accepted models while they are fine-tuned or completed

    3.- Subject means the repository in which the data model is officially published. Once there they are versioned when necessary.

    Pending Harmonization Subject
    Control of contributions No Yes Yes
    Scripts for checking No Yes (specific) Yes (only acceptance and on update)
    Code inside json schema No Harmonizing Local standard

    Global standard
    Versioning No No Yes
    Managed Each contributor Contributor + SDM control SDM control
    In domain No No Yes
    Accept issues Yes but not managed Yes Yes (Here the open ones)
    First Access Anyone
    1. Anyone previous pending acceptance
    2. Members direct
    		 N/A

    SDM: Smart Data Models initiative

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    Connection with European open data portal

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    The European open data portal is possibly the biggest open data portal in the world with more than one million free datasets coming from 36 countries.

    One of the mechanisms to access its data is the use of the standard of DCAT-AP standard 2.0 which defines its catalogue of resources.

    Image

    In the repository pending there are two data models, in progress to connect a dataset and a distribution as an additional resource by using NGSI. The idea is to create a script to map this resource into NGSI.