Emission
An emission: what a source gives off in one operating state, such as sound power, a pollutant rate or a discharge. A module schema can require more of it for its domain.
https://opendevelopmentstandards.org/schema/1.0.0-rc.2/core/Emission.json
Fields
idtextnot emptyThe record's id: unique within the document.
typeRequiredCode fromcore/quantities or acoustics/quantitiesWhat is given off, as a code from a quantities vocabulary, such as
sound_power_level.stateThe operating state the emission holds for. Leave it out when the source has one state.
valueRequiredHow much is given off, such as a sound power spectrum.
propertiesList ofPartPropertyOther facts about the emission, such as its height or its directivity.
evidenceList ofId ofEvidenceThe evidence the emission rests on, such as a measurement or a data sheet.
Links
Points at Records whose ids this record holds, with the field that holds each.
- Operating statePartstateA named way that a source runs, set by its operating properties, such as speed, load, flow rate or mode. Off is an operating state. Each emission names the state it holds for.
- EvidenceEntityevidenceOne observation, measured or calculated: what was observed, of which record, by which instrument or algorithm, over which interval, and the result. As in ISO 19156 (Observations and measurements).
Held by Records that embed this one, with their field that holds it.
- SourcePartemissionsA part of a feature that emits, such as a compressor, an engine, a stack or an outfall. As in ISO 14224:2016, levels 6 to 8. A source can hold smaller sources, such as a compressor's engine and cooler.
- Sound emissionPartAn Emission of sound power, in decibels. It adds no fields to Emission; it only narrows it.
Examples
An id that another example defines opens that record.
Example 2
{
"id": "emission-loaded",
"type": "sound_power_level",
"state": "state-loaded",
"value": {
"amount": [
88.1,
92.4,
95,
96.2,
94.8,
91.3,
86,
79.5
],
"unit": "dB",
"axes": [
{
"quantity": "frequency",
"unit": "Hz",
"values": [
63,
125,
250,
500,
1000,
2000,
4000,
8000
],
"bins": {
"set": "octave"
}
}
]
},
"properties": [
{
"type": "height",
"value": {
"amount": 3.5,
"unit": "m"
}
}
],
"evidence": [
"evidence-sound-power"
]
}Show 1 more exampleHide the other example
Example 1
{
"id": "emission-1",
"type": "sound_power_level",
"value": {
"amount": 102,
"unit": "dB"
}
}Changes and file
Changes
- 0.1.0 First version.
Schema file
Show the JSON SchemaHide the JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://opendevelopmentstandards.org/schema/1.0.0-rc.2/core/Emission.json",
"title": "Emission",
"description": "An emission: what a source gives off in one operating state, such as sound power, a pollutant rate or a discharge. A module schema can require more of it for its domain.",
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"description": "The record's id: unique within the document."
},
"type": {
"type": "string",
"pattern": "^[a-z0-9]+(_[a-z0-9]+)*(\\.[a-z0-9]+(_[a-z0-9]+)*)*$",
"x-ods-vocabulary": "*/quantities",
"description": "What is given off, as a code from a quantities vocabulary, such as `sound_power_level`."
},
"state": {
"type": "string",
"minLength": 1,
"x-ods-ref": "OperatingState",
"description": "The operating state the emission holds for. Leave it out when the source has one state."
},
"value": {
"$ref": "Value.json",
"description": "How much is given off, such as a sound power spectrum."
},
"properties": {
"type": "array",
"items": {
"$ref": "Property.json"
},
"description": "Other facts about the emission, such as its height or its directivity."
},
"evidence": {
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"x-ods-ref": "Evidence"
},
"description": "The evidence the emission rests on, such as a measurement or a data sheet."
}
},
"required": [
"type",
"value"
],
"patternProperties": {
"^x-": {}
},
"unevaluatedProperties": false,
"examples": [
{
"id": "emission-1",
"type": "sound_power_level",
"value": {
"amount": 102,
"unit": "dB"
}
},
{
"id": "emission-loaded",
"type": "sound_power_level",
"state": "state-loaded",
"value": {
"amount": [
88.1,
92.4,
95,
96.2,
94.8,
91.3,
86,
79.5
],
"unit": "dB",
"axes": [
{
"quantity": "frequency",
"unit": "Hz",
"values": [
63,
125,
250,
500,
1000,
2000,
4000,
8000
],
"bins": {
"set": "octave"
}
}
]
},
"properties": [
{
"type": "height",
"value": {
"amount": 3.5,
"unit": "m"
}
}
],
"evidence": [
"evidence-sound-power"
]
}
],
"x-ods-status": "draft",
"x-ods-kind": "part",
"x-ods-module": "core",
"x-ods-changes": {
"0.1.0": "First version."
}
}