@@ -164,7 +164,7 @@ The data in the SensorThings server are organized as according to **Sensing Ent
...
@@ -164,7 +164,7 @@ The data in the SensorThings server are organized as according to **Sensing Ent
<figure>
<figure>
<imgsrc="media/data_model.jpg"alt="data_model">
<imgsrc="media/data_model.jpg"alt="data_model">
<figcaption>Figure 5-1 STA Sensing Entities Data Model <ahref="#_ref_1">[1]</a></figcaption>
<figcaption>Figure 5-2 STA Sensing Entities Data Model <ahref="#_ref_1">[1]</a></figcaption>
</figure>
</figure>
In the Sensing Entities Data Model events or sensor data are called "observations". Before a sensor is able to push an observation to the server it needs at least a 'Thing' and a 'Datastream' entity. This has to be created beforehand. One 'Thing' might have different 'Sensors', one 'Location' or many 'HistoricalLocations'.
In the Sensing Entities Data Model events or sensor data are called "observations". Before a sensor is able to push an observation to the server it needs at least a 'Thing' and a 'Datastream' entity. This has to be created beforehand. One 'Thing' might have different 'Sensors', one 'Location' or many 'HistoricalLocations'.