diff --git a/sections/clause_07b_sensing_entities.adoc b/sections/clause_07b_sensing_entities.adoc index 3890187..a28c231 100644 --- a/sections/clause_07b_sensing_entities.adoc +++ b/sections/clause_07b_sensing_entities.adoc @@ -1,13 +1,15 @@ [[sensing-entities]] -== The SensorThings API (2.0) Sensing Entities +=== Sensing Entities All data model requirements classes are grouped in the following requirements class: +[requirements_class] +.Sensing Entities +==== [%metadata] identifier:: {identifier}/req-class/datamodel/sensing obligation:: requirement - subject:: Target Type: Data Model requirement:: {identifier}/req-class/datamodel/sensing/thing requirement:: {identifier}/req-class/datamodel/sensing/location @@ -17,9 +19,9 @@ requirement:: {identifier}/req-class/datamodel/sensing/sensor requirement:: {identifier}/req-class/datamodel/sensing/observed-property requirement:: {identifier}/req-class/datamodel/sensing/observation requirement:: {identifier}/req-class/datamodel/sensing/feature +==== -=== Sensing Entities The OGC SensorThings API (2.0) standard depicts the Core Sensing entities in Figure 1 [#img-sta-core,link=../images/GRP0001.png] image::../images/GRP0001.png[Sensing Core] @@ -29,11 +31,10 @@ image::../images/GRP0001.png[Sensing Core] In this section, we define each entity depicted in Figure 1 and its relationships with other entities. Additionally, we also provide examples to model the entities in different contexts. -[requirements_class] - -==== Thing +==== Requirement Class: Thing -Requirements Class +[requirements_class] +.Thing ==== [%metadata] @@ -45,6 +46,22 @@ requirement:: {identifier}/req/datamodel/sensing/thing/relations ==== The SensorThings API follows the ITU-T definition, i.e., with regard to the Internet of Things, a thing is an object of the physical world (physical things) or the information world (virtual things) that is capable of being identified and integrated into communication networks [ITU-T Y.2060]. + +[example%unnumbered] +==== +*Thing Examples* + +- A weather forecasting facility that houses multiple weather sensors deployed across several sites +- A drone that mounts a LiDAR sensor for mapping purposes +- An upstream oil well that is equipped with compound gas detection devices +==== + +[additional-notes] +==== +*NOTE*: The Thing entity draws from the Host interface from the Conceptual Observation Schema in OMS + +==== + [requirement] ==== [%metadata] @@ -52,7 +69,6 @@ identifier:: {identifier}/req/datamodel/sensing/thing/properties Each Thing entity SHALL have the mandatory properties and MAY have the optional properties listed in Table 1. ==== - [#thing-properties,reftext='{table-caption} {counter:table-num}'] .Properties of a Thing entity [width="100%",cols="5,17,3,3,3",options="header"] @@ -68,7 +84,6 @@ Each Thing entity SHALL have the mandatory properties and MAY have the optional ==== [%metadata] identifier:: {identifier}/req/datamodel/sensing/thing/relations - Each Thing entity SHALL have the direct relation between a Thing entity and other entity types listed in Table 2. ====