Copyright © 2009 Open Geospatial Consortium, Inc. 13
service interfaces that can only be used by other security domains under certain conditions.
5.3 Use Case Scenarios
This use case described above can be separated into different scenarios, related to the Publish-Find-Bind pattern, as it exists for Web Services in general:
i Sensor Registration – Registering available fire detection sensors and their
capabilitiescharacteristics in a CSW, ii
Sensor FindBind – Finding sensors in a CSW and connect register them with appropriate Sensor Web Services,
iii Sensor Web Services FindBind – Setting up and configuring instances of Sensor
Web Services, to a.
receive fire alerts, b.
obtain air pollution, and c.
task UAV sensors iv
Sensor Web Services Processing – Running the instance of the sensor web to a.
receive fire alerts b.
obtain air pollution, and c.
task UAV sensors and obtain produced imagery.
5.3.1 Sensor Register
For each security domain, in which sensors exist, an administrator uses a catalog service CSW to register available sensors and their capabilities to allow binding to the sensors.
For this use case it is assumed that the CSW is deployed in the security domain of the administrator and is accessible for search operations by ―configuration‖ administrators
located in the same security domain.
5.3.2 Sensor FindBind
Interactions during this scenario focus on the registration of particular sensor instances to Sensor Web Services provided by the security domain. In order to achieve this, the setup
administrator potentially different from the administrator of Register scenario uses the search operation of the CSW to find applicable sensor instances. After finding a sensor,
the administrator will register the sensor with the appropriate service. The type of service depends on the capabilities of the sensor. For example, a temperature or smoke detection
sensor would be registered with the SPS and the SAS; the SPS can be used to configure the sensor and the SAS takes care of operator subscription and alert notifications. The
14 Copyright © 2009 Open Geospatial Consortium, Inc.
UAV sensors are only registered with a SPS to allow tasking. In order to obtain the produced imagery, a SOS is used.
After the administrator has registered all relevant sensors with the appropriate Sensor Web Services, the setting up of the sensor web instance can begin.
Figure 1: Registration of sensors with a CSW and a Sensor Web Service
5.3.3 Sensor Web Serivces FindBind
