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Commit f0a8a825 authored by Ingo Friese's avatar Ingo Friese
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typo 2

parent d6d9c994
Branches MAS-2018-0050
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1 merge request!10SDS-2025-0016R02-ogc_ipe_configuration_aspects
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...@@ -204,13 +204,13 @@ Both directions of the data flow between the OGC/STA server and the IPE require ...@@ -204,13 +204,13 @@ Both directions of the data flow between the OGC/STA server and the IPE require
#### 6.3.1.1 Communication direction OGC/STA Server towards IPE #### 6.3.1.1 Communication direction OGC/STA Server towards IPE
In Figure 6.3.1.1-1, an OGC/STA client is connected to an OGC/STA server, and its data is forwarded to the IPE. The OGC/STA client publishes data to the OGC/STA server via an HTTP-POST message. The 'result' attribute of an "Observation" contains the sensor data. In Figure 6.3.1.1-1, an OGC/STA client is connected to an OGC/STA server, and its data is forwarded to the IPE. The OGC/STA client publishes data to the OGC/STA server via an HTTP-POST message.
An "Observation" according to STA Sensing Entities Data Model <a href="#_ref_i.1">[i.1]</a> belongs to a "Datastream" (see Figure 5-2). The IPE shall subscribe to the relevant "Datastream" at the MQTT-Broker of the OGC/STA Server using its specific URL or topic like e.g. {"sta-example-server-address.com/v1.0/Datastreams(8715)"}. After subscribing, the IPE receives every "Observation" that is pushed to that "Datastream". An "Observation" according to STA Sensing Entities Data Model <a href="#_ref_i.1">[i.1]</a> belongs to a "Datastream" (see Figure 5-2). The IPE shall subscribe to the relevant "Datastream" at the MQTT-Broker of the OGC/STA Server using its specific URL or topic like e.g. {"sta-example-server-address.com/v1.0/Datastreams(8715)"}. After subscribing, the IPE receives every "Observation" that is pushed to that "Datastream".
![Figure 6.3.1.1-1: Message flow from OGC STA Client to OGC/STA Server to IPE](media/config_ogc.png) ![Figure 6.3.1.1-1: Message flow from OGC/STA Client to OGC/STA Server to IPE](media/config_ogc.png)
**Figure 6.3.1.1-1: Message flow from OGC STA Client to OGC/STA Server to IPE** **Figure 6.3.1.1-1: Message flow from OGC/STA Client to OGC/STA Server to IPE**
#### 6.3.1.2 Communication direction IPE towards OGC/STA Server #### 6.3.1.2 Communication direction IPE towards OGC/STA Server
...@@ -221,9 +221,9 @@ The creation of entities like "Datastream" and "Thing" requires several mandator ...@@ -221,9 +221,9 @@ The creation of entities like "Datastream" and "Thing" requires several mandator
Once the "Thing" and "Datastream" entities are created, the IPE can send "Observations" to the OGC/STA server as HTTP POST messages. The interested OGC/STA client can then subscribe to the destination "Datastream" at the MQTT Broker of the OGC/STA server and receive every "Observation" forwarded from the IPE (see Figure 6.3.1.2-1). Alternatively, the OGC/STA client may use an HTTP-GET request to pull the data as needed. Once the "Thing" and "Datastream" entities are created, the IPE can send "Observations" to the OGC/STA server as HTTP POST messages. The interested OGC/STA client can then subscribe to the destination "Datastream" at the MQTT Broker of the OGC/STA server and receive every "Observation" forwarded from the IPE (see Figure 6.3.1.2-1). Alternatively, the OGC/STA client may use an HTTP-GET request to pull the data as needed.
![Figure 6.3.1.2-1: Message flow from OGC STA Client to OGC/STA Server to IPE](media/config_ogc2.png) ![Figure 6.3.1.2-1: Message flow from IPE to OGC/STA Server to OGC/STA Client](media/config_ogc2.png)
**Figure 6.3.1.2-1: Message flow from OGC STA Client to OGC/STA Server to IPE** **Figure 6.3.1.2-1: Message flow from IPE to OGC/STA Server to OGC/STA Client**
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