<?xml version="1.0"?>
<rdf:RDF xmlns="https://w3id.org/def/saref4envi#"
     xml:base="https://w3id.org/def/saref4envi"
     xmlns:dc="http://purl.org/dc/elements/1.1/"
     xmlns:owl="http://www.w3.org/2002/07/owl#"
     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:xml="http://www.w3.org/XML/1998/namespace"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
     xmlns:vann="http://purl.org/vocab/vann/"
     xmlns:terms="http://purl.org/dc/terms/">
    <owl:Ontology rdf:about="https://w3id.org/def/saref4envi">
        <owl:versionIRI rdf:resource="https://w3id.org/def/v1/saref4envi"/>
        <dc:description xml:lang="en">This ontology extends the SAREF ontology for the environment domain, specifically for the light pollution domain, including concepts like photometers, light, etc.</dc:description>
        <dc:publisher rdf:resource="http://www.oeg-upm.net/"/>
        <dc:title xml:lang="en">SAREF extension for environment</dc:title>
        <terms:creator rdf:resource="http://purl.org/net/mpoveda"/>
        <terms:creator rdf:resource="http://www.garcia-castro.com/foaf.rdf#me"/>
        <terms:license rdf:resource="http://purl.org/NET/rdflicense/cc-by4.0"/>
        <vann:preferredNamespacePrefix>s4envi</vann:preferredNamespacePrefix>
        <vann:preferredNamespaceUri>https://w3id.org/def/saref4envi#</vann:preferredNamespaceUri>
        <owl:versionInfo>1.0</owl:versionInfo>
    </owl:Ontology>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Object Properties
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->


    


    <!-- http://www.w3.org/2003/01/geo/wgs84_pos#location -->


    <owl:ObjectProperty rdf:about="http://www.w3.org/2003/01/geo/wgs84_pos#location">
        <rdfs:comment xml:lang="en">The relation between something and the point,  or other geometrical thing in space, where it is.  For example, the realtionship between a radio tower and a Point with a given lat and long. Or a relationship between a park and its outline as a closed arc of points, or a road and its location as a arc (a sequence of points). Clearly in practice there will be limit to the accuracy of any such statement, but one would expect an accuracy appropriate for the size of the object and uses such as mapping .</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#"/>
        <rdfs:label xml:lang="en">location</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#affectsProperty -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#affectsProperty">
        <rdfs:comment xml:lang="en">A relation between an actuator with the property or properties it can act on</rdfs:comment>
        <rdfs:label xml:lang="en">affects property</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#contains -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#contains">
        <owl:inverseOf rdf:resource="https://w3id.org/def/saref4envi#isContainedIn"/>
        <rdfs:comment xml:lang="en">A relation between a physical object and the physical objects that can be contained in it.</rdfs:comment>
        <rdfs:label xml:lang="en">contains</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#encapsulates -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#encapsulates">
        <owl:inverseOf rdf:resource="https://w3id.org/def/saref4envi#hasDigitalRepresentation"/>
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:comment xml:lang="en">A relation between a digital representation and the physical objects it represents.</rdfs:comment>
        <rdfs:label xml:lang="en">encapsulates</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasColor -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasColor">
        <rdfs:comment xml:lang="en">A relation between a light emitted and its color.</rdfs:comment>
        <rdfs:label xml:lang="en">has color</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasComponent -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasComponent">
        <owl:inverseOf rdf:resource="https://w3id.org/def/saref4envi#isComponentOf"/>
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#TransitiveProperty"/>
        <rdfs:comment xml:lang="en">A relation between a system and the system in which it might be decomposed.</rdfs:comment>
        <rdfs:label xml:lang="en">has component</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasDigitalRepresentation -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasDigitalRepresentation">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#InverseFunctionalProperty"/>
        <rdfs:comment xml:lang="en">A relation between a physical object and the digital representation in which it is encapsulated.</rdfs:comment>
        <rdfs:label xml:lang="en">has digital representation</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasFrequencyMeasurement -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasFrequencyMeasurement">
        <rdfs:comment xml:lang="en">The relation between a device and the frequency in which it makes measurements.</rdfs:comment>
        <rdfs:label xml:lang="en">has frequency measurement</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasGeometry -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasGeometry">
        <rdfs:comment xml:lang="en">A relation between a light emitted and the shape it is projected in.</rdfs:comment>
        <rdfs:label xml:lang="en">has geometry</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasLightPoint -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasLightPoint">
        <rdfs:comment xml:lang="en">A relation between a lamppost and its light points</rdfs:comment>
        <rdfs:label xml:lang="en">has light point</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasTransmissionPeriod -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#hasTransmissionPeriod">
        <rdfs:comment xml:lang="en">The relation between a device and the period in which it transmit information.</rdfs:comment>
        <rdfs:label xml:lang="en">has transmission period</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isAccesibleThrough -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isAccesibleThrough">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:comment xml:lang="en">The relation between a digital representation and the service which it is accesible through.</rdfs:comment>
        <rdfs:label xml:lang="en">is accesible through</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isComponentOf -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isComponentOf">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#TransitiveProperty"/>
        <rdfs:comment xml:lang="en">A relation between a system and the system it belongs to as a component.</rdfs:comment>
        <rdfs:label xml:lang="en">is component of</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isConnectedTo -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isConnectedTo">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#SymmetricProperty"/>
        <rdfs:comment xml:lang="en">A relation between a system and the system to which it is connected.</rdfs:comment>
        <rdfs:label xml:lang="en">is connected to</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isContainedIn -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isContainedIn">
        <rdfs:comment xml:lang="en">A relation between a physical object and the physical object in which it might be contained.</rdfs:comment>
        <rdfs:label xml:lang="en">is contained in</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isProjectedFromHeight -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isProjectedFromHeight">
        <rdfs:comment xml:lang="en">A relation between a light and the height measurement from which it is projected.</rdfs:comment>
        <rdfs:label xml:lang="en">is projected from height</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#isProjectedInDirection -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#isProjectedInDirection">
        <rdfs:comment xml:lang="en">A relation between a light and the direction in which it is projected.</rdfs:comment>
        <rdfs:label xml:lang="en">is projected in direction</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#projectsLight -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#projectsLight">
        <rdfs:comment xml:lang="en">A relation between a lamppost or a light point and the light (or lights) they might project.</rdfs:comment>
        <rdfs:label xml:lang="en">projects light</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#usesCommunicationInterface -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#usesCommunicationInterface">
        <rdfs:comment xml:lang="en">A relation between a system and the communication interface it uses.</rdfs:comment>
        <rdfs:label xml:lang="en">uses communication interface</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/def/saref4envi#usesCommunicationProtocol -->


    <owl:ObjectProperty rdf:about="https://w3id.org/def/saref4envi#usesCommunicationProtocol">
        <rdfs:comment xml:lang="en">A relation between a system and the communication protocol it uses.</rdfs:comment>
        <rdfs:label xml:lang="en">uses communication protocol</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/saref#isMeasuredIn -->


    <owl:ObjectProperty rdf:about="https://w3id.org/saref#isMeasuredIn">
        <rdfs:comment xml:lang="en">A relation between a measurement and the unit of measure in which the measurement value is expressed.</rdfs:comment>
        <rdfs:comment xml:lang="en">is measured in</rdfs:comment>
        <rdfs:isDefinedBy>https://w3id.org/saref#</rdfs:isDefinedBy>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/saref#makesMeasurement -->


    <owl:ObjectProperty rdf:about="https://w3id.org/saref#makesMeasurement">
        <rdfs:comment xml:lang="en">A relation between a sensor and the measurements it makes. Such measurement will link together the valur of the measurement, its unit of measure and the property to which it relates.</rdfs:comment>
        <rdfs:isDefinedBy>https://w3id.org/saref#</rdfs:isDefinedBy>
        <rdfs:label xml:lang="en">makes measurement</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/saref#measuresProperty -->


    <owl:ObjectProperty rdf:about="https://w3id.org/saref#measuresProperty">
        <rdfs:comment xml:lang="en">A relation between a sensor and the property o properties it can take measurement about.</rdfs:comment>
        <rdfs:isDefinedBy>https://w3id.org/saref#</rdfs:isDefinedBy>
        <rdfs:label xml:lang="en">measures property</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- https://w3id.org/saref#relatesToProperty -->


    <owl:ObjectProperty rdf:about="https://w3id.org/saref#relatesToProperty">
        <rdfs:comment xml:lang="en">A relation between a measurement and the property such measurement is about.</rdfs:comment>
        <rdfs:isDefinedBy>https://w3id.org/saref#</rdfs:isDefinedBy>
        <rdfs:label xml:lang="en">relates to property</rdfs:label>
    </owl:ObjectProperty>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Data properties
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->


    


    <!-- https://w3id.org/def/saref4envi#hasCreationDate -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasCreationDate">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
        <rdfs:comment xml:lang="en">A relationship defining the creation date of an entity (e.g., a digital representation).</rdfs:comment>
        <rdfs:label xml:lang="en">has creation date</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasFlash -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasFlash">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#boolean"/>
        <rdfs:comment xml:lang="en">A relationship stating whether a light has flash.</rdfs:comment>
        <rdfs:label xml:lang="en">has flash</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasIdentifier -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasIdentifier">
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
        <rdfs:comment xml:lang="en">A relationship providing the identifier of an entity (e.g., digital representation)</rdfs:comment>
        <rdfs:label xml:lang="en">has identifier</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasProjectionAngle -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasProjectionAngle">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
        <rdfs:comment xml:lang="en">A relationship defining the projection angle of an entity (e.g., a light).</rdfs:comment>
        <rdfs:label xml:lang="en">has projection angle</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasRevisionNumber -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasRevisionNumber">
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
        <rdfs:comment xml:lang="en">A relationship defining the revision number of a certain entity (e.g., a device)</rdfs:comment>
        <rdfs:label xml:lang="en">has revision number</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasShield -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasShield">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#boolean"/>
        <rdfs:comment xml:lang="en">A relationship stating whether a lamppost has a shield.</rdfs:comment>
        <rdfs:label xml:lang="en">has shield</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasTag -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasTag">
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
        <rdfs:comment xml:lang="en">A relationship stating the tags that can be assigned to an entity (e.g., a digital representation).</rdfs:comment>
        <rdfs:label xml:lang="en">has tag</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/def/saref4envi#hasVersion -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/def/saref4envi#hasVersion">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
        <rdfs:comment xml:lang="en">A relationship defining the version  of a certain entity (e.g., a device)</rdfs:comment>
        <rdfs:label xml:lang="en">has version</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/saref#hasDescription -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/saref#hasDescription">
        <rdfs:comment xml:lang="en">A relationship providing a description of an entity (e.g., device)</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">has description</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/saref#hasManufacturer -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/saref#hasManufacturer">
        <rdfs:comment xml:lang="en">A relationship identifying the manufacturer of an entity (e.g., device)</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">has manufacturer</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/saref#hasName -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/saref#hasName">
        <rdfs:comment xml:lang="en">A relationship providing the name of an entity (e.g., device)</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">has name</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/saref#hasTimestamp -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/saref#hasTimestamp">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
        <rdfs:comment xml:lang="en">A relationship stating the timestamp of an entity (e.g. a measurement).</rdfs:comment>
        <rdfs:isDefinedBy>https://w3id.org/saref#</rdfs:isDefinedBy>
        <rdfs:label xml:lang="en">has timestamp</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- https://w3id.org/saref#hasValue -->


    <owl:DatatypeProperty rdf:about="https://w3id.org/saref#hasValue">
        <rdfs:comment xml:lang="en">A relationship defining the value of a certain property, e.g., energy or power</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">has value</rdfs:label>
    </owl:DatatypeProperty>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Classes
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->


    


    <!-- http://www.w3.org/2003/01/geo/wgs84_pos#Point -->


    <owl:Class rdf:about="http://www.w3.org/2003/01/geo/wgs84_pos#Point">
        <rdfs:comment xml:lang="en">A point, typically described using a coordinate system relative to Earth, such as WGS84. Uniquely identified by lat/long/alt. i.e. spaciallyIntersects(P1, P2) :- lat(P1, LAT), long(P1, LONG), alt(P1, ALT), at(P2, LAT), long(P2, LONG), alt(P2, ALT). sameThing(P1, P2) :- type(P1, Point), type(P2, Point), spaciallyIntersects(P1, P2).</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#"/>
        <rdfs:label xml:lang="en">Point</rdfs:label>
    </owl:Class>
    


    <!-- http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing -->


    <owl:Class rdf:about="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing">
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Color"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CommunicationInterface"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CommunicationProtocol"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CompassDirection"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <rdfs:comment xml:lang="en">Anything with spatial extent, i.e. size, shape, or position. e.g. people, places, bowling balls, as well as abstract areas like cubes.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#"/>
        <rdfs:label xml:lang="en">Spatial thing</rdfs:label>
    </owl:Class>
    


    <!-- http://www.w3.org/2006/time#TemporalUnit -->


    <owl:Class rdf:about="http://www.w3.org/2006/time#TemporalUnit">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">A temporal unit of measure, which provides a scale factor for a time quantity.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="http://www.w3.org/2006/time#"/>
        <rdfs:label xml:lang="en">Temporal unit</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Actuator -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Actuator">
        <rdfs:subClassOf rdf:resource="https://w3id.org/def/saref4envi#Device"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#affectsProperty"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#Property"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">Device that can act over at least one property.</rdfs:comment>
        <rdfs:label xml:lang="en">Actuator</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Color -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Color">
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CommunicationInterface"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CommunicationProtocol"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CompassDirection"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">Color of the emitted light. It might be indicated by named colors or using other type of color values like hexadecimal for RGB, color temperature, etc.</rdfs:comment>
        <rdfs:label xml:lang="en">Color</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#CommunicationInterface -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#CommunicationInterface">
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasVersion"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasVersion"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CommunicationProtocol"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CompassDirection"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">An interface defines which primitive operations and services the lower layer makes available to the upper one, when referring to network layers. (Definition adapted from &quot;Tanenbaum, A. S. (2003). Computer networks, 4-th edition. ed: Prentice Hall.&quot;)</rdfs:comment>
        <rdfs:label xml:lang="en">Communication interface</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#CommunicationProtocol -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#CommunicationProtocol">
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#CompassDirection"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">A protocol is an agreement between the communicating parties on how communication is to proceed. (Definition taken from &quot;Tanenbaum, A. S. (2003). Computer networks, 4-th edition. ed: Prentice Hall.&quot;)</rdfs:comment>
        <rdfs:label xml:lang="en">Communication protocol</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#CompassDirection -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#CompassDirection">
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">The four cardinal directions or cardinal points are the directions of north, east, south, and west, commonly denoted by their initials: N, E, S, W. East and west are at right angles to north and south, with east being in the clockwise direction of rotation from north and west being directly opposite east. Intermediate points between the four cardinal directions form the points of the compass. (definition taken from https://en.wikipedia.org/wiki/Cardinal_direction)</rdfs:comment>
        <rdfs:label xml:lang="en">Compass direction</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Device -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Device">
        <rdfs:subClassOf rdf:resource="https://w3id.org/def/saref4envi#System"/>
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Device"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasFrequencyMeasurement"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#FrequencyMeasurement"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasTransmissionPeriod"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#PeriodMeasurement"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isContainedIn"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#PhysicalObject"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasRevisionNumber"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasVersion"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasManufacturer"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasRevisionNumber"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasVersion"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">A thing made or adapted for a particular purpose, especially a piece of mechanical or electronic equipment. For example ‘a measuring device’ (definition taken from https://en.oxforddictionaries.com/definition/device). In this ontology it refers to the devices for environmental purposes.</rdfs:comment>
        <rdfs:label xml:lang="en">Device</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#DigitalRepresentation -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#DigitalRepresentation">
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#encapsulates"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#PhysicalObject"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isAccesibleThrough"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#Service"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasCreationDate"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasIdentifier"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasTag"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasDescription"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasName"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasCreationDate"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasIdentifier"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">A digital representation encapsulates a physical object accessible via Web services</rdfs:comment>
        <rdfs:label xml:lang="en">Digital representation</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#FrequencyMeasurement -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#FrequencyMeasurement">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Measurement"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#relatesToProperty"/>
                <owl:hasValue rdf:resource="https://w3id.org/def/saref4envi#Frequency"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#isMeasuredIn"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onClass rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">Represents the measured value made over a frequency property. It is also linked to the frequency unit of measure in which the value is expressed and the timestamp of the measurement.</rdfs:comment>
        <rdfs:label xml:lang="en">Frequency measurement</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#FrequencyUnit -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#FrequencyUnit">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">Unit of measure for the quantity frequency.</rdfs:comment>
        <rdfs:label xml:lang="en">Frequency unit</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Geometry -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Geometry">
        <owl:disjointWith rdf:resource="https://w3id.org/def/saref4envi#Light"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">Represents the shape of the light emission. It might be instantiated by individuals like &quot;spherical&quot;, &quot;cylindrical&quot;, etc. even though it is open to more comples representation of geometries using other vocabularies.</rdfs:comment>
        <rdfs:label xml:lang="en">Geometry</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#HeightMeasurement -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#HeightMeasurement">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Measurement"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#relatesToProperty"/>
                <owl:hasValue rdf:resource="https://w3id.org/def/saref4envi#Height"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#isMeasuredIn"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onClass rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">Represents the measured value made over a height property. It is also linked to the height unit of measure in which the value is expressed and the timestamp of the measurement.</rdfs:comment>
        <rdfs:label xml:lang="en">Height measurement</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Lamppost -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Lamppost">
        <rdfs:subClassOf rdf:resource="https://w3id.org/def/saref4envi#Device"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasLightPoint"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#LightPoint"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#projectsLight"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#Light"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasShield"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#boolean"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">A tall pole with a light at the top.</rdfs:comment>
        <rdfs:label xml:lang="en">Lamppost</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#LengthUnit -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#LengthUnit">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">Unit of measure for the quantity lenght.</rdfs:comment>
        <rdfs:label xml:lang="en">Length unit</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Light -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Light">
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasColor"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#Color"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasGeometry"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#Geometry"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isProjectedFromHeight"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#HeightMeasurement"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isProjectedInDirection"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#CompassDirection"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasFlash"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#boolean"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasProjectionAngle"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Measurement"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">A light source, which may be a lantern, a street light, a floodlight, a signal lamp or any other device whose primary purpose is the generation of light. (Definition taken from http://wiki.openstreetmap.org/wiki/Proposed_features/Key:light_source#Description)</rdfs:comment>
        <rdfs:label xml:lang="en">Light</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#LightPoint -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#LightPoint">
        <rdfs:subClassOf rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#Point"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#location"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#projectsLight"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#Light"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">An spatial point from where a light is projected. It might belong to a lamppost.</rdfs:comment>
        <rdfs:label xml:lang="en">Light point</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#LightProperty -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#LightProperty">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Property"/>
        <rdfs:comment xml:lang="en">An aspect of light that can be observable by a sensor.</rdfs:comment>
        <rdfs:label xml:lang="en">Light property</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#PeriodMeasurement -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#PeriodMeasurement">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Measurement"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#relatesToProperty"/>
                <owl:hasValue rdf:resource="https://w3id.org/def/saref4envi#Period"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#isMeasuredIn"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onClass rdf:resource="http://www.w3.org/2006/time#TemporalUnit"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">Represents the measured value over a period property. It is also linked to the period unit of measure in which the value is expressed and the timestamp of the measurement.</rdfs:comment>
        <rdfs:label xml:lang="en">Period measurement</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#Photometer -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#Photometer">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Sensor"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#measuresProperty"/>
                <owl:someValuesFrom rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">A photometer, generally, is an instrument that measures light intensity or optical properties of solutions or surfaces.</rdfs:comment>
        <rdfs:label xml:lang="en">Photometer</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#PhysicalObject -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#PhysicalObject">
        <rdfs:subClassOf rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#location"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2003/01/geo/wgs84_pos#SpatialThing"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#contains"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#PhysicalObject"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasDigitalRepresentation"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#DigitalRepresentation"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isContainedIn"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#PhysicalObject"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasDescription"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">Any Object that has a proper space region.  (Definition extracted from DUL ontology)</rdfs:comment>
        <rdfs:label xml:lang="en">Physical object</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#System -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#System">
        <rdfs:subClassOf rdf:resource="https://w3id.org/def/saref4envi#PhysicalObject"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#hasComponent"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#System"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isComponentOf"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#System"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#isConnectedTo"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#System"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#usesCommunicationInterface"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#CommunicationInterface"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/def/saref4envi#usesCommunicationProtocol"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/def/saref4envi#CommunicationProtocol"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">A group of related hardware units or programs or both, especially when dedicated to a single application. (Definition taken from https://en.oxforddictionaries.com/definition/system)</rdfs:comment>
        <rdfs:label xml:lang="en">System</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/def/saref4envi#TESS -->


    <owl:Class rdf:about="https://w3id.org/def/saref4envi#TESS">
        <rdfs:subClassOf rdf:resource="https://w3id.org/def/saref4envi#Photometer"/>
        <rdfs:comment xml:lang="en">The Telescope Encoder and Sky Sensor (TESS) is a Sky Brightness and Cloud detector developed as a device for a remote observatory. A TESS can observe the light magnitude and other properties as ambient temperature and sky temperature.</rdfs:comment>
        <rdfs:label xml:lang="en">TESS (Telescope Encoder and Sky Sensor)</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#Device -->


    <owl:Class rdf:about="https://w3id.org/saref#Device">
        <rdfs:comment xml:lang="en">A tangible object designed to accomplish a particular task in households, common public buildings or offices. In order to accomplish this task, the device performs one or more functions. For example, a washing machine is designed to wash (task) and to accomplish this task it performs the start and stop function.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">Device</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#Measurement -->


    <owl:Class rdf:about="https://w3id.org/saref#Measurement">
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#isMeasuredIn"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#relatesToProperty"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#Property"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#isMeasuredIn"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onClass rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#relatesToProperty"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onClass rdf:resource="https://w3id.org/saref#Property"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasTimestamp"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasValue"/>
                <owl:allValuesFrom rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#hasValue"/>
                <owl:qualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:qualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Property"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">Represents the measured value made over a property. It is also linked to the unit of measure in which the value is expressed and the timestamp of the measurement.</rdfs:comment>
        <rdfs:label xml:lang="en">Measurement</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#Property -->


    <owl:Class rdf:about="https://w3id.org/saref#Property">
        <owl:disjointWith rdf:resource="https://w3id.org/saref#Service"/>
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">An aspect of an entity that can be observable by a sensor.</rdfs:comment>
        <rdfs:label xml:lang="en">Property</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#Sensor -->


    <owl:Class rdf:about="https://w3id.org/saref#Sensor">
        <rdfs:subClassOf rdf:resource="https://w3id.org/saref#Device"/>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#makesMeasurement"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#Measurement"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://w3id.org/saref#measuresProperty"/>
                <owl:allValuesFrom rdf:resource="https://w3id.org/saref#Property"/>
            </owl:Restriction>
        </rdfs:subClassOf>
        <rdfs:comment xml:lang="en">A device that detects and responds to events or changes in the physical environment such as light, motion, or temperature changes.
A device that has category saref:Sensor and performs a saref:SensingFunction.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">Sensor</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#Service -->


    <owl:Class rdf:about="https://w3id.org/saref#Service">
        <owl:disjointWith rdf:resource="https://w3id.org/saref#UnitOfMeasure"/>
        <rdfs:comment xml:lang="en">A service is a representation of a function to a network that makes the function discoverable, registerable, remotely controllable by other devices in the network. A service can represent one or more functions. A Service is offered by a device that wants (a certain set of) its function(s) to be discoverable, registerable, remotely controllable by other devices in the network. A Service must specify the device that is offering the service, the function(s) to be represented, and the (input and output) parameters necessary to operate the service.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">Service</rdfs:label>
    </owl:Class>
    


    <!-- https://w3id.org/saref#UnitOfMeasure -->


    <owl:Class rdf:about="https://w3id.org/saref#UnitOfMeasure">
        <rdfs:comment xml:lang="en">The unit of measure is a standard for measurement of a quantity, such as a Property. For example,  Power is a property and Watt is a unit of power that represents a definite predetermined power: when we say 10 Watt, we actually mean 10 times the definite predetermined power called &quot;watt&quot;. Our definition is based on the definition of unit of measure in the Ontology of units of Measure (OM). We propose here a list of some units of measure that are relevant for the purpose of the Smart Appliances ontology, but this list can be extended.</rdfs:comment>
        <rdfs:isDefinedBy rdf:resource="https://w3id.org/saref#"/>
        <rdfs:label xml:lang="en">Unit of measure</rdfs:label>
    </owl:Class>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Individuals
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->


    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/centimetre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/centimetre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Centimetre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/decametre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/decametre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Decametre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/decimetre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/decimetre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Decimetre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/hectometre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/hectometre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Hectometre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/hertz -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/hertz">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
        <rdfs:label xml:lang="en">Hertz</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/kilometre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/kilometre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Kilometre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/metre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/metre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Metre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/millimetre -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/millimetre">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LengthUnit"/>
        <rdfs:label xml:lang="en">Milimetre</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_day -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_day">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
        <rdfs:label xml:lang="en">Reciprocal day</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_hour -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_hour">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
        <rdfs:label xml:lang="en">Reciprocal hour</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_second-time -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_second-time">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
        <rdfs:label xml:lang="en">Reciprocal second</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_year -->


    <owl:NamedIndividual rdf:about="http://www.wurvoc.org/vocabularies/om-1.8/reciprocal_year">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#FrequencyUnit"/>
        <rdfs:label xml:lang="en">Reciprocal year</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Fluorescence -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Fluorescence">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property fluorescence.</rdfs:comment>
        <rdfs:label xml:lang="en">Fluorescence</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Frequency -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Frequency">
        <rdf:type rdf:resource="https://w3id.org/saref#Property"/>
        <rdfs:comment xml:lang="en">An individual representing the property frequency.</rdfs:comment>
        <rdfs:label xml:lang="en">Frequency</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Height -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Height">
        <rdf:type rdf:resource="https://w3id.org/saref#Property"/>
        <rdfs:comment xml:lang="en">An individual representing the property height.</rdfs:comment>
        <rdfs:label xml:lang="en">Height</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Illuminance -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Illuminance">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property illuminance.</rdfs:comment>
        <rdfs:label xml:lang="en">Illuminance</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Irradiance -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Irradiance">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property irradiance.</rdfs:comment>
        <rdfs:label xml:lang="en">Irradiance</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#LightAbsorption -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#LightAbsorption">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property light absorption.</rdfs:comment>
        <rdfs:label xml:lang="en">Light absorption</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#LightMagnitude -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#LightMagnitude">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property light magnitude.</rdfs:comment>
        <rdfs:label xml:lang="en">Light magnitude</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Luminiscence -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Luminiscence">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property luminiscence.</rdfs:comment>
        <rdfs:label xml:lang="en">Luminiscence</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Period -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Period">
        <rdf:type rdf:resource="https://w3id.org/saref#Property"/>
        <rdfs:comment xml:lang="en">An individual representing the property period.</rdfs:comment>
        <rdfs:label xml:lang="en">Period</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#Phosphorescence -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#Phosphorescence">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property phosphorescence.</rdfs:comment>
        <rdfs:label xml:lang="en">Phosphorescence</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#ReflectionOfLight -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#ReflectionOfLight">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property reflection of light.</rdfs:comment>
        <rdfs:label xml:lang="en">Reflection of light</rdfs:label>
    </owl:NamedIndividual>
    


    <!-- https://w3id.org/def/saref4envi#ScatteringOfLight -->


    <owl:NamedIndividual rdf:about="https://w3id.org/def/saref4envi#ScatteringOfLight">
        <rdf:type rdf:resource="https://w3id.org/def/saref4envi#LightProperty"/>
        <rdfs:comment xml:lang="en">An individual representing the light property scattering of light.</rdfs:comment>
        <rdfs:label xml:lang="en">Scattering of light</rdfs:label>
    </owl:NamedIndividual>
</rdf:RDF>



<!-- Generated by the OWL API (version 5.1.7) https://github.com/owlcs/owlapi/ -->


