{
    "$schema": "http://json-schema.org/schema#",
    "$schemaVersion": "0.0.1",
    "$id": "https://smart-data-models.github.io/dataModel.Device/SmartMeteringObservation/schema.json",
    "title": " Smart Data Models - Smart Metering Observation",
    "description": "This entity contains a harmonised description of a Smart Meter Observation, generally applicable for Smart Homes, Industry, Cities and Agriculture. It is based mostly in the GSMA entity definition but it is extended",
    "type": "object",
    "allOf": [
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
        },
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
        },
        {
            "properties": {
                "type": {
                    "type": "string",
                    "enum": [
                        "SmartMeteringObservation"
                    ],
                    "description": "Property. It has to be SmartMeteringObservation. NGSI entity type"
                },
                "entityVersion": {
                    "type": "string",
                    "enum": [
                        "2.0",
                        "LD"
                    ],
                    "description": "Property. Model:'https://schema.org/Text'. The entity specification version. A version number of 2.0 or later denotes the entity is represented using NGSI-LD"
                },
                "meterType": {
                    "type": "string",
                    "description": "Property. The type of supply being metered e.g.: Electricity, Gasoline, Water, Methane, Diesel."
                },
                "refDevice": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "description": "Property. Identifier format of any NGSI entity"
                        },
                        {
                            "type": "string",
                            "format": "uri",
                            "description": "Property. Identifier format of any NGSI entity"
                        }
                    ],
                    "description": "Relationship. Unique identifier of the entity"
                },
                "image": {
                    "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/PhysicalObject-Commons/properties/image"
                },
                "totalConsumption": {
                    "type": "number",
                    "description": "Property. The total amount of product supplied as recorded by the meter since installation. The relevant unitCode should be specified such as KWH (Kilo Watt Hours) for Electricity, LTR (Litre) or MTQ (Cubic Metre) for gases or liquids."
                },
                "peakConsumption": {
                    "type": "number",
                    "description": "Property. The total amount of product supplied during 'peak' hours (particularly relevant to Electricity supply) as recorded by the meter since installation. The relevant unitCode should be specified such as KWH (Kilo Watt Hours) for Electricity, LTR (Litre) or MTQ (Cubic Metre) for gases or liquids."
                },
                "offPeakConsumption": {
                    "type": "number",
                    "description": "Property. The total amount of product supplied during 'off-peak' hours (particularly relevant to Electricity supply) as recorded by the meter since installation. The relevant unitCode should be specified such as KWH (Kilo Watt Hours) for Electricity, LTR (Litre) or MTQ (Cubic Metre) for gases or liquids."
                },
                "powerFactor": {
                    "type": "number",
                    "description": "Property. Relevant to 3-Phase electricity supplies often used in industry - the power factor ranges from -1 to +1 depending on the net balance between capacitive and inductive loads. If used this measures the average power factor since meter installation."
                }
            }
        }
    ],
    "required": [
        "id",
        "type"
    ]
}