Page 35 - U4SSC Data and API requirements for centralized smart city platforms
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5.3.1 Description
The SCHub API provides an abstract method that allows unified data collection, which is produced
by sensors installed in a SC. Each event that is measured by a sensor is described in the SCHub
events’ taxonomy with a specific schema. The SCHub layer transforms the messages produced by
sensors to SCHub events. When a client of the SCHub API requests access of a specific event of
the taxonomy, the collected data are compliant with this schema, regardless of the schema used
by the sensor manufacturer.
5.3.2 Requirements
– the SCHub taxonomy for the required event has been agreed and standardized.
– the SCHub IoT gateway for the sensors that are access has been implemented according to the
SCHub schema specification.
5.3.3 Scenario
In this scenario, data for parking occupancy of two different parking spaces is retrieved. The
sensor installed in each parking space are developed by different manufacturers and they are not
compatible (Figure 15).
Figure 15: Sensor measurements retrieval with the unified SCHub API
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