Digital twins and simulation

  • Twins that stay true to the world

    A digital twin is only useful while it still matches the thing it represents. Live observation keeps it true, and freshness, provenance and validation are how anyone can tell whether it still is.

  • Observing a transmission corridor: a reference design

    A high-voltage line is limited by heat, sag and the ground beneath it. This reference design shows how a transmission corridor observing site can watch the conductor, the weather on the line and the vegetation below,…

  • Observing a river basin: a reference design

    A flood warning is worth what it gives people time to do. This reference design shows how a river basin observing site measures rain and river, wins lead time from upstream, and keeps warning when its…

  • Observing a city block: a reference design

    Air, heat and movement change from one street to the next. This reference design for observing a city block puts sensors and small cells on the street furniture, corrects cheap sensors against a reference, and publishes…