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Agri Greenhouse

This entity contains a harmonised description of the conditions recorded within a generic greenhouse, a type of AgriParcel. This entity is primarily associated with the agricultural vertical and related IoT applications.

Attribute Name Attribute Type Description Constraint
id @id Provides a unique identifier for an instance of the entity either in the form of a URI (i.e. either a publicly accessible URL or a URN). Mandatory
type @type Defines the type of the entity. Mandatory
createdAt TemporalProperty Indicates the date/ time that the instance of the entity was created in ISO 8601 format. The value of this will be set by the server when the entity was created. Mandatory
modifiedAt TemporalProperty Indicates the date/ time when the entity was last modified in ISO 8601 format. The value of this will be set by the server when the entity was modified, if the entity has not been modified it may have a null value. Optional
source Property Specifies the URL to the source of this data (either organisation or where relevant more specific source) Recommended
dataProvider Property Specifies the URL to information about the provider of this information Recommended
entityVersion Property The entity specification version as a number. A version number of 2.0 or later denotes the entity is represented using NGSI-LD Recommended
hasAgriParcelParent Relationship Reference to the AgriParcel entity to which this entity relates. Mandatory
hasAgriParcelChildren Relationship Related sub AgriParcel records to which this entity relates. Optional
hasWeatherObserved Relationship Reference to the weather observation record current for this entity. Recommended
hasWaterQualityObserved Relationship Reference to one or more water quality observation records current for this entity. Recommended
relativeHumidity Property The inside relative humidity expressed as a number between 0 and 1 representing the range 0% to 100 (%).

0 ≤ relativeHumidity ≤ 1		 Recommended
leafTemperature Property The average greenhouse air temperature nominally in degrees centigrade. Recommended
co2 Property The measured interior C02 concentration nominally in mg/L. Optional
dailyLight Property Daily Accumulated light measured in kW per square metre Optional
drainFlow Property The observed drain flow rate in litres per second Optional
hasDevice Relationship Reference to the IoT devices associated with this greenhouse i.e. sensors, controls. Recommended

NGSI-LD Context Definition

The following NGSI-LD context definition applies to the Agri Greenhouse entity

Download context definition.

{
    "@context": {}
}

Example of Agri Greenhouse Entity

The following is an example instance of the Agri Greenhouse entity

Download example entity definition.

{
    "@context": [
        "https://forge.etsi.org/gitlab/NGSI-LD/NGSI-LD/raw/master/coreContext/ngsi-ld-core-context.json",
        "https://raw.githubusercontent.com/GSMADeveloper/NGSI-LD-Entities/master/examples/Agri-Greenhouse-context.jsonld"
    ],
    "id": "urn:ngsi-ld:AgriGreenhouse:df72dc57-1eb9-42a3-88a9-8647ecc954b4",
    "type": "AgriGreenhouse",
    "createdAt": "2017-01-01T01:20:00Z",
    "modifiedAt": "2017-05-04T12:30:00Z",
    "source": "https://source.example.com",
    "dataProvider": "https://provider.example.com",
    "entityVersion": 2.0,
    "hasAgriParcelParent": {
        "type": "Relationship",
        "object": "urn:ngsi-ld:AgriParcel:c8b475e5-84a8-4346-ad79-cde1d2a4028b"
    },
    "hasAgriParcelChildren": {
        "type": "Relationship",
        "object": [
            "urn:ngsi-ld:AgriParcel:8c3a525d-b42e-4048-bcdd-a119d8ddb0a5",
            "urn:ngsi-ld:AgriParcel:178d74c1-e6fe-4042-b955-2c164fc90b83"
        ]
    },
    "hasWeatherObserved": {
        "type": "Relationship",
        "object": "urn:ngsi-ld:WeatherObserved:c720cec5-ac6f-40b7-8e89-becb75702d0d"
    },
    "hasWaterQualityObserved": {
        "type": "Relationship",
        "object": [
            "urn:ngsi-ld:WaterQualityObserved:49f86e0b-bb90-4751-a1c3-d5a891920807",
            "urn:ngsi-ld:WaterQualityObserved:853bf420-43fc-11e8-942f-6b7615517118"
        ]
    },
    "relativeHumidity": {
        "type": "Property",
        "value": 0.4,
        "unitCode": "C62",
        "observedAt": "2016-08-22T19:20Z"
    },
    "leafTemperature": {
        "type": "Property",
        "value": 22,
        "unitCode": "CEL",
        "observedAt": "2016-08-22T19:20Z"
    },
    "co2": {
        "type": "Property",
        "value": 28,
        "unitCode": "M1",
        "observedAt": "2016-08-22T19:20Z"
    },
    "dailyLight": {
        "type": "Property",
        "value": 24,
        "unitCode": "N78",
        "observedAt": "2016-08-22T19:20Z"
    },
    "drainFlow": {
        "type": "Property",
        "value": {
            "value": 33,
            "maxValue": 50,
            "minValue": 25,
            "unitText": "Litre per second"
        },
        "unitCode": "G51",
        "observedAt": "2016-08-22T19:20Z"
    },
    "hasDevice": {
        "type": "Relationship",
        "object": [
            "urn:ngsi-ld:Device:4a40aeba-4474-11e8-86bf-03d82e958ce6",
            "urn:ngsi-ld:Device:63217d24-4474-11e8-9da2-c3dd3c36891b",
            "urn:ngsi-ld:Device:68e091dc-4474-11e8-a398-df010c53b416",
            "urn:ngsi-ld:6f44b54e-4474-11e8-8577-d7ff6a8ef551"
        ]
    }
}