adaptive door
control
watching it
learn
The DVD32R’s sliding door runs on precision bearings, attached to a polished
steel bar and a Teflon glider. It is operated by an electric motor pulling it forward
or backwards using a steel cable.
A ‘perfect’ door movement would close/open the door as fast as possible whilst
being smooth and silent, almost like opening or closing a bank’s heavy safe door.
Such ‘perfect’ movement is extremely difficult to achieve and maintain as all
mechanical constructions tend to change their performance with temperature and
over time. The DVD32R employs an ‘adaptive door control strategy’ which
conquers the limitations of the mechanics by measuring every door movement and
comparing it with the last one and a stored ‘perfect’ movement. If the movement
was too fast the DVD32R will slow down the next one, if it was too slow it will
accelerate it. Sometimes the prediction for the next movement might not be
perfectly right, just missing the optimum, visible to a focussed observer by a short
stalling of the door movement, just for a fraction of a second, before being
accelerated. This is completely normal.
You can ‘force’ the DVD32R to re-start its adaption (recommended if the door
movement was obstructed) by switching the power to the DVD32R off and on
again (using the power switch on the front). After that, observe how the DVD32R
tries to find that perfect setting again, with each door movement being smoother
than the one before.
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door mechanism
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