Live data on a web based GIS

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I'm looking to implement a 3D/2D tactical display in a browser. This should be capable of plotting maybe 100 tracks and their histories with 0.5 second updates.

I've researched the available technologies and considering using the following stack.

• GeoServer with PostGIS backend
• CesiumJS with ol3-cesium
• OpenLayers 3 - supports WFS

Most of these technologies seem to be based around serving static data rather than live dynamic data. I'd ideally like a high performance solution using WebSockets rather than HTTP polling, however I don't want to re-invent the wheel.

Can anyone provide any recommendations/experiences?



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