The term ‘Frame’ comes from naval architecture and defines the timber or rib of a ship from keel to side rail. All frames shape the hull. With a defined origin and stated in a reasonable unit, it can be seen as a local reference system which is helpful in bigger ships to locate items. But the ‘Local Frame’ can be used in other contexts as well e.g. for station, containers, moorings, etc. as long as a fix origin is given.

The figure shows Hydrins 1 at Polarstern (https://sensor.awi.de/?urn=vessel:polarstern:hydrins_1)

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