OpenGIS Sensor Web Enablement Architecture

The following openGIS specifications exist:

[1] Observations & Measurements

-encodings for observation made using sensors.

[2]Sensor Model Language(SensorML)

-schema describing the process within sensor processor systems

[3]Tranducer Model Language (TML)

-schema for describing tranducers

[4]Sensor Observation Service(SOS)

-The goal of the the SOS is to provide access to observations from sensors and sensor systems in a standard way.

-an interface by which a client can obtain observations,sensor and platform descriptions.

-is a data store

-similar to a database

-a service providing information about observed data e.g current water level.

[5]Sensor Planning Service(SPS)

-an interface by which a client can determine the feasibility of collecting data from one or more sensors.

[6]Sensor Alert Service(SAS)

-an interface for publishing and subscribing to deliverable alerts from sensors.

-is the central logic

-monitors complex subscription rules

-it subscribes to the SOS which provides observation if subscription condition is fulfilled.

[7]Web Notification Service(WNS)

-an interface by which a client can conduct message interchange with one or more other services.

-dispatches alerts through a user selected channel e.g. SMS or e-mail.

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SOURCES:

1. OpenGIS Sensor Web Enablement Architecture Document (Ref:OGC 06-021r1)
2. Definations by Alexander Walkowski,52 North,Germany