Visual specification of spatial/temporal queries in a sensor data independent information system Karin Silvervarg Erland Jungert FOI, Linköping, Sweden.

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Presentation transcript:

Visual specification of spatial/temporal queries in a sensor data independent information system Karin Silvervarg Erland Jungert FOI, Linköping, Sweden

System overview

Where? When? What?

VehicleRoad Find all vehicles inside roads.

Vehicle Town Distance < 10 km Find all vehicles within 10 km north of towns.

Timediff = 5 hours Truck Motorway River Flood Find all trucks that drove on a riverside expressway five hours before the flood.

Summary Sensor data independent Similar to graphical interfaces to SQL Manages spatial and temporal queries