Exampe of sensor description using extension of LIMAP ontology (http://data.uni-muenster.de/php/vocab/limap)

description_SPT943_4.ttl

@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ssn: <http://purl.oclc.org/NET/ssnx/ssn#> .
@prefix hmtr: <http://purl.org/NET/ssnext/heatmeters#> .
@prefix ssncom: <http://purl.org/NET/ssnext/communication#> .
@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
@prefix geosparql: <http://www.opengis.net/ont/geosparql#> .
@prefix dul: <http://www.loa-cnr.it/ontologies/DUL.owl#> .
@prefix limapext: <http://purl.org/NET/limapext#> .
@prefix limap: <http://data.uni-muenster.de/php/vocab/limap> .

<coap://10.1.1.1:6500/meter> a hmtr:HeatMeter ;
    rdfs:label "Heat Meter #6500" ;
    ssn:hasSubsystem <coap://10.1.1.1:6500:6500/meter/temperature> ;
    ssn:hasSubsystem <coap://10.1.1.1:6500:6500/meter/heat> ;
    limapext:isOccupantOf [
        rdf:type limap:Room ;
        limap:hasLocalCoordinates [
            rdf:type limap:LocalCoordinates ;
            geosparql:hasGeometry "POLYGON((
                                        3.976532 0, 
                                        6.765645 0,    
                                        6.765645 2.273458, 
                                        3.976532 2.2734589))"^^geo:wktLiteral .
        ] ;
        limap:isLocated [
            rdf:type limap:EscapePlan ;
            limap:hasSourceImage <https://makeitnigeria.com/wp-content/uploads/2012/10/philglad-serviced-self-catering-flat-rental-ikeja-lagos-nigeria-floor-plan.jpg> ;
            limap:isEscapePlanOf [
                rdf:type limap:Floor ;
                dul:hasLocation [
                    geo:floor "4"^^xsd:int .
                ],
                limap:isFloorIn [
                    rdf:type limap:Building ;
                    geosparql:hasGeometry "POLYGON((
                                                -81.587906 45.336702, 
                                                -81.148453 39.774769,    
                                                -69.964371 39.30029, 
                                                -70.403824 45.58329, 
                                                -81.587906 45.336702))"^^geo:wktLiteral .
                ] .
            ] .
        ] .
    ] .

<coap://10.1.1.1:6500:6500/meter/temperature> a ssn:Sensor ;
    ssn:observes hmtr:Temperature ;
    ssncom:hasCommunicationEndpoint <coap://10.1.1.1:6500:6500/meter/temperature/obs> .

<coap://10.1.1.1:6500:6500/meter/heat> a ssn:Sensor ;
    ssn:observes hmtr:Heat ;
    ssncom:hasCommunicationEndpoint <coap://10.1.1.1:6500:6500/meter/heat/obs> .

<coap://10.1.1.1:6500:6500/meter/temperature/obs> a ssncom:CommunicationEndpoint ;
    ssncom:protocol "COAP" .
<coap://10.1.1.1:6500:6500/meter/heat/obs> a ssncom:CommunicationEndpoint ;
    ssncom:protocol "COAP" .