Abstract:
An apparatus (10) for winding a screen (12) comprises a winding drum (14) for winding the screen (12) which can rotate about an axis of rotation (16) with respect to a fixed frame of reference over more than one revolution between at least one first end-of-travel position and a second end-of-travel position, a motor assembly (30) comprising a motor (32) equipped with a stator (32.1) intended to be fixed to a fixed support (23, 26) and a rotor (32.2) kinematically connected to the winding drum (14). A first measurement assembly (51) comprises a first encoder (46) secured to the rotor (32.2), a first sensor for reading the first encoder (46) and generating a first counting signal when the first encoder (46) turns. First processing means (50) generate, as a function of the first counting signal, a first signal indicative of the position of the screen, which signal is monotonous when the drum moves from the first end-of-travel position to the second end-of-travel position. A second measurement assembly (64) makes it possible to detect at least one indexed position of the drum (14) per revolution of the drum in the fixed frame of reference. A calibration memory (56) stores at least one first calibration value for the first signal indicative of the position of the screen in the indexed position of the drum and at least one first quantitative algebraic comparison between a current value of the first signal indicative of the position of the screen as measured on passing through the indexed position during an observation phase and the first calibration value is delivered.
Abstract:
The present invention relates to a method of controlling an actuator for a mobile item of equipment in building comprising the steps consisting in: deploying a model (M) linking at least one modelling parameter (P) with at least one characteristic physical quantity (C) of the environment or of the operation of the actuator exhibiting a temporal evolution; collecting a set of measurement values (VCm) relating to the at least one characteristic physical quantity (C) of the environment or of the operation of the actuator in the course of a measurement interval (Tm), each measurement value (VCm) being associated with an instant (Tm) of the measurement interval (Tm); determining or correcting at least one value (VP) of the at least one modelling parameter (P) in such a way that a modelled temporal evolution (Ee) defined on the basis of the application of the model (M) of the at least one value (VP) of modelling parameter (P) corresponds to or approaches an observed temporal evolution (Eo) of the characteristic physical quantity (C) determined on the basis of the set of measurement values (VCm); applying or correcting a definition of the operation of the actuator (1) as a function of a determined or corrected value (VP) of the at least one parameter (P). The present invention also relates to an actuator implementing such a method.
Abstract:
An actuator (2) for driving a blind with adjustable slats, the actuator including a housing (20) inside which a motor (22) is installed, the motor driving a first output shaft (21) that projects on either side of the housing (20), characterised in that the actuator further includes a second output shaft (23) of which the axis of rotation (X23) is parallel to and not coinciding with that of the first output shaft (21) and controlled coupling elements (26) making it possible to selectively transmit a rotational movement from the first output shaft (21) to the second output shaft (23), and in that the second output shaft (23) projects on either side of the housing (20).