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A shutter control apparatus, comprising: a tunable filter arrangement, having a tunable passband, configured to filter a signal derived at least in part from an electric motor, wherein the electric motor is for driving a moveable shutter and the signal comprises pulses that have a variable frequency and are derived from operation of a commutator of the electric motor; and control circuitry configured to: determine at least one electrical parameter associated with the electric motor; set the tunable passband based, at least in part, on the at least one electrical parameter; determine pulses in the signal passing through the tunable filter arrangement; and determine a position of the moveable shutter based on the determined pulses.
A shutter control apparatus, comprising: a tunable filter arrangement, having a tunable passband, configured to filter a signal derived at least in part from an electric motor, wherein the electric motor is for driving a moveable shutter and the signal comprises pulses that have a variable frequency and are derived from operation of a commutator of the electric motor; and control circuitry configured to: determine at least one electrical parameter associated with the electric motor; set the tunable passband based, at least in part, on the at least one electrical parameter; determine pulses in the signal passing through the tunable filter arrangement; and determine a position of the moveable shutter based on the determined pulses.
SHUTTER CONTROL
COMMANDE DE VOLET
GUNTON BRUCE STANLEY (Autor:in)
22.06.2018
Patent
Elektronische Ressource
Englisch
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
/
H02K
Dynamoelektrische Maschinen
,
DYNAMO-ELECTRIC MACHINES
/
H02P
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
,
Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern
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