DE102014108546A1 - control unit - Google Patents

Abstract

The invention relates to a control device for domestic installation for the wired remote control of a drive arrangement (1) for a blackout device (2), the drive arrangement (1) being an asynchronous drive motor (3) which can be operated with an AC line voltage and having an operating capacitor (4) for generating main and auxiliary phase, the control unit being connected to an alternating voltage in the installed state, the control unit having two power phase terminals (7a, b), each of which is electrically connected to a line of the asynchronous drive motor (3), the control unit being a housing ( 8) and in the housing (8) has an electronic switchover unit (9), which electronic switchover unit (9) is set up to move the asynchronous drive motor (3) in an adjustment direction (10) to a phase conductor (6) of the AC voltage to connect one of the two power phase terminals (7a, b), and wherein the control unit is a Electronic evaluation unit (11), which is set up to determine a torque value for the torque output by the asynchronous drive motor (3) based on at least one detected phase voltage at the power phase terminals (7a, b), based on a comparison of the determined torque value with to recognize a collision state of the drive arrangement (1) based on a reference value and to trigger a collision routine in the event of a detected collision state. It is proposed that the electronic evaluation unit (11) has a rewritable data memory (12) in which an active parameter set (13a) with at least one parameter is stored, and that the reference value is based on the stored active parameter set (13a).

Description

The present invention relates to a control device for domestic installation for the wired remote control of a drive arrangement for a darkening device according to the preamble of claim 1.

The controller in question is used in the context of home installation primarily for the wired remote control of tubular motor assemblies application. This application is present in the foreground, which is not to be understood as limiting.

From the EP 2 369 124 a control device is known, which serves the remote control of a tubular motor assembly. The known control unit is designed for the operation of an asynchronous drive motor with mains AC voltage. For this purpose, the drive motor is equipped in the usual way with an operating capacitor for generating main phase and auxiliary phase. The control unit is connected to the mains AC voltage and has an electronic switching unit with which a phase conductor of the mains AC voltage can be switched depending on the desired adjustment direction to one of the two power phase terminals of the drive motor. In particular tubular motors, which do not have their own electronics and are ultimately limit switch-controlled, can thus be controlled in a manner that is comfortable for the user.

The known control device has a mechanism for detecting a collision state. Such a collision state occurs when, for example, when unwinding the obscuring device by the tubular motor, the obscuring device encounters an obstacle and can not move further down. For example, by jamming in a guide, a collision in this sense can also occur during an upward movement. Accordingly, here and below, the term collision is to be understood broadly in the sense of any movement obstacle.

In such a case, it is advantageous to have a suitable reaction to the collision, for example by a movement of the darkening device in the other direction. For this purpose, the known control unit has an electronic evaluation unit, with which both the auxiliary phase voltage and the main phase voltage of the asynchronous drive motor measured and in particular by means of the formation of area values from these voltages a torque value - which does not have to correspond exactly to the torque in the physical sense - the drive arrangement can be determined. The detection of a collision state now happens by assuming that a collision exceeds the determined torque value above a certain limit value.

A disadvantage of the known control unit and the corresponding collision detection, however, is that it is tailored only to special drive motors or special variants of drive motors and certain dimensions of the darkening device. Since the blackout device to be moved, that is to say a roller blind, can be dimensioned very differently both in terms of its width and its height, it also happens that the power required for the movement of the darkening device and accordingly the torque varies greatly. In other words, a measured torque, which already means a collision in one particular configuration, may also occur in normal operation in another configuration.

The invention is therefore based on the problem to design the known control unit and further develop that it can be used flexibly for different types of drive assemblies and dimming devices.

The above problem is solved in a control device according to the preamble of claim 1 by the features of the characterizing part of claim 1.

Essential for the invention is the realization that the actual calculations for collision detection are performed in the control unit. These are the same in the basic approach for all drive arrangements. The idea now is to provide a variable parameter set in the control unit, which can then be changed or described depending on the installation situation and thus dependent on the drive arrangement and the darkening device. In this way it is possible to use the same control unit for very different drive arrangements as well as different installation situations. Then only the determination of the appropriate parameter set is required, but this can be done dynamically and therefore does not have to be determined a priori. A special vote of the controller in the production of the drive assembly or the darkening device is no longer required.

There are various ways to set the correct parameters in the control unit. According to the preferred embodiment of claim 3, these can be entered directly manually by the user. Alternatively, a set of parameter sets may also be stored in the controller, of which either the appropriate one is selected by the user, as this proposed by the preferred embodiment of claim 4.

Furthermore, as described in claim 5, the control unit can undergo a learning activation of the drive arrangement with which learning activation either the appropriate parameter set is automatically generated or the appropriate parameter set is determined from the set of parameter sets stored in the control unit.

As the claim 8 constructs on this embodiment, this generation of the parameters can also be done by causing a collision during the learning drive.

In the following the invention will be explained in more detail with reference to an embodiment shown in the drawing. In the drawing shows

1 a proposed control unit for domestic installation, which is associated with a tubular motor assembly in the installed state and

2 the arrangement according to 1 in a block diagram representing essential components only for the proposed solution.

That in the 1 and 2 illustrated proposed control unit is provided for domestic installation. The control unit is installed regularly in surface or flush mounting. The controller is used for wired remote control of a drive assembly 1 , which is in this case a tubular motor assembly 1a acts for a dimming device 2 ,

In the case shown is the obscuring device 2 a roller blind 2a , Even if the remote control of the drive assembly 1 Wired by the control unit, as shown in the drawing, takes place, then the control unit itself can also be controlled wirelessly, such as a remote control of the controller, not shown here.

According to the proposal, the drive arrangement 1 one operable at an AC mains voltage asynchronous drive motor 3 with a working capacitor 4 for generating main and auxiliary phase. Such an asynchronous drive motor 3 is basically known from the prior art. In the installed state, the controller is connected to an AC voltage, represented in the drawing by the neutral conductor 5 and the phase conductor 6 , Furthermore, the controller has two power phase terminals 7a . 7b on, which in each case with a strand of the asynchronous drive motor 3 are electrically connected. The proposed controller has a housing 8th and in the housing 8th an electronic switching unit 9 on which electronic switching unit 9 is arranged to move the asynchronous drive motor 3 in an adjustment direction 10 a phase conductor 6 the AC voltage to one of the two power phase terminals 7a . 7b turn on. Like in the 1 shown, the term refers to the adjustment 10 present in a direction of rotation of the asynchronous drive motor 3 but could also be in a direction of movement of the darkening device 2 be obtained. Furthermore, according to the proposal, the control unit has an electronic evaluation unit 11 configured to be based on at least one detected phase voltage at the power phase terminals 7a . 7b a torque value for that from the asynchronous drive motor 3 output torque, based on a comparison of the determined torque value with a reference value, a collision state of the drive assembly 1 to detect and in the event of a detected collision state to trigger a collision routine.

The determination of the torque value from the detected phase voltage can also take place, as known from the control device of the prior art, by means of a surface formation of the detected phase voltage over the course of time. The torque value may directly indicate the torque or a quantity formed from the torque, such as the time derivative of the torque.

A comparison of the determined torque value with a reference value is not necessarily the sole or decisive point in the detection of a collision state, but can also only form a weighted component of a more complex algorithm. In particular, the reference value can be determined as a function of another value. Because the darkening device 2 regularly by the movement of the drive assembly 1 is wound or unwound by a shaft, is about the force acting on the drive assembly weight - in or against the direction of movement - from the current position of the darkening device 2 which can also be taken into account when determining the reference value.

The said reference value can also be time-dependent in the sense that within a certain period of time after starting the asynchronous drive motor 3 from a standstill or a reversal of the direction of movement of the asynchronous drive motor 3 either a higher reference value can be applied - since a start-up or a direction reversal temporarily means a larger torque - or the collision detection is temporarily suspended by a very high reference value. Further can also be the current direction of movement of the asynchronous drive motor 3 into the comparison, since the typical collision behavior in the two possible directions of movement can also be different.

The proposed control device is now characterized in that the electronic evaluation unit 11 a rewritable data store 12 in which an active parameter set 13a is stored with at least one parameter and in that the reference value on the stored active parameter set 13a based. Due to the rewritability of the data memory 12 can therefore be the active parameter set 13a and specifically, at least one parameter to be dynamically adjusted, in particular with regard to the type of drive arrangement to be controlled 1 ,

A basic preferred embodiment now provides that the stored active parameter set 13a a collision torque value comprises that the reference value corresponds to the collision torque value and that the electronic evaluation unit 11 is set up to the collision state of the drive assembly 1 when the determined torque value exceeds the collision torque value in the comparison. This corresponds to the case that the active parameter set 13 simply provides a limit whose exceeding by the detected torque indicates a collision state. In this case, the collision torque value can also correspond to a limit value of the time derivative of the torque and accordingly be compared with a determined torque value which corresponds to the derivative of the torque.

Regarding a dynamic adaptation of the active parameter set 13a is now preferably provided that the control device is an input device 14 has, over which input device 14 individual parameters can be entered in particular manually by a user. Here is the electronic evaluation unit 11 set up the entered parameters in the stored active parameter set 13a entered. This can also be done by having a new active parameter set 13a is generated and stored on the basis of the entered parameters. Such an input device 14 can be like in the 1 shown from a keyboard 14a consist. This allows the direct numerical input of a parameter, such as the already discussed Kollisionsdrehmomentomentwertes.

Alternatively or additionally, it is preferably provided that in the data memory 12 a variety of parameter sets 13a -D is deposited and that the control device is a selection device 15 has, over which of the plurality of stored parameter sets 13a -D the active parameter set 13a can be determined by a user. The selection device 15 can, as in the 1 shown, a seesaw 15a be with which the user a desired parameter set, which if necessary together with the other parameter sets 13b -D on the display 16 is displayed as an active parameter set 13a can choose. This selection can be done not only by selecting a parameter set as such, but also by the fact that about a type designation of a drive assembly 1 is selected, from which then one of these drive assembly 1 or the corresponding asynchronous drive motor 3 assigned parameter set results. The selection device 15 may also be identical to the input device 14 so that the same keyboard or rocker is used for both functions.

Regarding automatic learning or determining a suitable active parameter set 13a is now preferably provided that the control unit is adapted to a predetermined learning control of the asynchronous drive motor 3 for parameter determination. Here is the electronic switching unit 9 to set up a movement of the asynchronous drive motor 3 to effect according to the predetermined learning control and the electronic evaluation unit 11 is configured to detect electrical measured values and, based on electrical measured values acquired during the predetermined learning activation, the active parameter set 13a to determine.

The aforementioned electrical measured values may be, for example, the already mentioned phase voltages at the power phase terminals 7a , b corresponding to each of the main and auxiliary phases. In principle, however, alternatively or additionally other electrical measured values, for example sensors not shown here, can be made available, which are then supplied by the electronic evaluation unit 11 recorded and as a basis for determining the active parameter set 13a be used.

A preferred way of determining the active parameter set 13a is that the electronic evaluation unit 11 is configured to, based on the detected during the predetermined learning driving electrical measurements, the active parameter set 13a from the multitude of data storage 12 stored parameter sets 13a -D to determine. Instead of a manual determination by the user via the selection device 15 Thus, based on the measurement during the learning drive, automatic detection takes place on the basis of which as well as an automatic determination of the active parameter set 13a he follows.

Alternatively, it is provided that the electronic evaluation unit 11 is thereby configured, based on detected during the predetermined learning control electrical measurement values the active parameter set 13a to determine that the electronic evaluation unit 11 generates a generated parameter set - based on electrical measured values acquired during the predetermined learning activation - and the parameter set generated as an active parameter set 13a in the data store 12 deposited. So here is not one already in the data store 12 stored parameter set 13a -D is selected, but based on the measured values a new such parameter set is generated and then as an active parameter set 13a selected.

Although it is not necessary that in the execution of the predetermined learning drive the drive assembly 1 already at the blackout device 2 is built in, as certain characteristics of the asynchronous drive motor 3 specifically the asynchronous drive motor 3 characteristics, even without the load caused by the obscuration device. However, it is preferred that the control unit is set up to perform the predetermined learning activation when the drive arrangement 1 at the darkening device 2 is installed. Because in such a case, can through the darkening device 2 resulting boundary conditions in the determination of the active parameter set 13a be taken into account by the predetermined learning drive.

To a normal unhindered movement of the drive assembly 1 , which may also be referred to as idling, and the state of a collision of the obscuring device 2 with an obstacle, which state of a blocked movement of the drive assembly 1 corresponds to be able to distinguish particularly well, it is preferably provided that the active parameter set 13a - Which may also be the generated parameter set according to the above description - at least one idle parameter and at least one collision parameter, wherein the at least one idle parameter of an idle movement of the drive assembly 1 corresponds and wherein the at least one collision parameter of a blocked movement of the drive assembly 1 equivalent. In this way, it is possible to determine, for example, a torque value which is associated with the unimpeded movement-that is, the idling-in a characteristic manner and another torque value which corresponds to the blocked movement and thus to the collision case. For when determining, for example, a collision torque value which is to serve as the limit value for the detection of a collision state, it is preferably not only the torque value determined in the event of a collision, but also the difference of this torque value to the torque value which is measured during idling operation.

In this way, false alarms can be avoided, so incorrectly detected collision conditions, if only by a slight and temporary entanglement of the darkening device 2 in their leadership for a short time a larger torque from the drive assembly 3 must be used without a collision in the true sense vorläge. In the idle parameter and the collision parameter can turn between the two possible directions of movement of the drive assembly 1 be differentiated.

If the said collision parameters are not previously known, it is proposed for their determination that a test collision is provided in a collision time segment of the predetermined learning activation and the electronic evaluation unit 11 is configured to generate the at least one collision parameter based on electrical measurements acquired after the test collision. Here, in the case of the predetermined learning activation, a time segment within the predetermined learning activation is defined, in which a collision - that is to say, primarily by the user - is to be brought about, which is referred to here as a test collision. Thus, the torque occurring during a collision can be measured experimentally as it were and used for the detection of the collision state. Such a collision can be brought about by the user being an obstacle in the path of the obscuring device before the predetermined learning activation is carried out 2 placed.

In an analogous manner, it is preferably provided that the torque ratios during idling operation are also determined. This means that preferably in an idle period of the predetermined learning control unhindered movement of the drive assembly 1 is provided and the electronic evaluation unit 11 is configured to generate the at least one idling parameter based on electrical measurements acquired during the idle time period. This also gives an experimental support of the idling parameter.

Collision parameters or idling parameters determined in this way can also be used for the already described determination of the active parameter set 13a from the multitude of im data storage 12 stored parameter sets 13a -D be used.

Both the idle time period and the collision time period may be in a respective subsection for each direction of movement of the drive assembly 1 be divided to make a different measurement for each of these directions of movement can.

If flanking the detection of the collision state via the determination of the torque value via the phase voltage and the consideration of sensor signals should be provided, then this can preferably be done by the electronic evaluation unit 11 is adapted to a sensor signal from the drive assembly 1 to detect what a movement of the obscuring device 2 indicates and is set up based on a comparison of the sensor signal with the active collision parameter set 13a a collision state of the drive assembly 1 to recognize. Such a sensor signal may be such as a movement of the obscuring device 2 detected by a magnetic sensor. For example, if a freewheel between the darkening device 2 and the asynchronous drive motor 3 is provided, then occurs in a collision, the case that the asynchronous drive motor 3 Moving on, the dimming device 2 however, stops. In such a case can thus be by an unchanged torque on the asynchronous drive motor 3 with simultaneous stoppage of the darkening device 2 recognize a collision condition during the run of the freewheel.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2369124 [0003]

Claims (10)

Control unit for domestic installation for the wired remote control of a drive arrangement ( 1 ) for a darkening device ( 2 ), wherein the drive arrangement ( 1 ) an asynchronous drive motor operable at a mains alternating voltage ( 3 ) with operating capacitor ( 4 ) for generating the main and auxiliary phase, wherein in the installed state, the controller is connected to an AC voltage, wherein the controller has two power phase terminals ( 7a , b), each with a strand of the asynchronous drive motor ( 3 ) are electrically connected, wherein the control device comprises a housing ( 8th ) and in the housing ( 8th ) an electronic switching unit ( 9 ), which electronic switching unit ( 9 ) is adapted to move the asynchronous drive motor ( 3 ) in an adjustment direction ( 10 ) a phase conductor ( 6 ) of the AC voltage to one of the two power phase terminals ( 7a , b) through, and wherein the control unit an electronic evaluation unit ( 11 ), which is adapted, based on at least one detected phase voltage at the power phase terminals ( 7a , b) a torque value for the asynchronous drive motor ( 3 ) determined torque, based on a comparison of the determined torque value with a reference value, a collision state of the drive assembly ( 1 ) and to trigger a collision routine in the event of a detected collision condition, characterized in that the electronic evaluation unit ( 11 ) a rewritable data memory ( 12 ), in which an active parameter set ( 13a ) is stored with at least one parameter, and that the reference value on the stored active parameter set ( 13a ). Control unit according to Claim 1, characterized in that the stored active parameter set ( 13a ) comprises a collision torque value, that the reference value corresponds to the collision torque value and that the electronic evaluation unit ( 11 ) is adapted to the collision state of the drive assembly ( 1 ) when, in the comparison, the detected torque value exceeds the collision torque value. Control device according to Claim 1 or 2, characterized in that the control device has an input device ( 14 ), via which individual parameters can be entered by a user and the electronic evaluation unit ( 11 ) is set up to enter the entered parameters into the stored active parameter set ( 13a ). Control device according to one of claims 1 to 3, characterized in that in the data memory ( 12 ) a plurality of parameter sets ( 13a -D) is stored and the control device is a selection device ( 15 ), over which of the plurality of stored parameter sets ( 13a -D) the active parameter set ( 13a ) can be determined by a user. Control device according to one of claims 1 to 4, characterized in that the control device is adapted to a predetermined learning control of the asynchronous drive motor ( 3 ) for parameter determination, wherein the electronic switching unit ( 9 ) is adapted to a movement of the asynchronous drive motor ( 3 ) to effect according to the predetermined learning control and the electronic evaluation unit ( 11 ) is adapted to detect electrical measured values and to determine the active parameter set (based on electrical measured values detected during the predetermined learning control) ( 13a ). Control device according to claim 5, characterized in that the electronic evaluation unit ( 11 ) is thereby set up, based on electrical measured values acquired during the predetermined learning activation, the active parameter set ( 13a ) to determine that the electronic evaluation unit ( 11 ) generates a generated parameter set and the generated parameter set as an active parameter set ( 13a ) in the data memory ( 12 ) deposited. Control device according to claim 5 or 6, characterized in that the active parameter set ( 13a ) comprises at least one idle parameter and at least one collision parameter, wherein the at least one idle parameter of an idle movement of the drive assembly ( 1 ) and wherein the at least one collision parameter of a blocked movement of the drive arrangement ( 1 ) corresponds. Control unit according to Claim 7, characterized in that a test collision is provided in a collision time segment of the predetermined learning activation and the electronic evaluation unit ( 11 ) is configured to generate the at least one collision parameter based on electrical measurements acquired after the test collision. Control device according to claim 7 or 8, characterized in that in an idle period of the predetermined learning drive an unobstructed movement of the drive assembly ( 1 ) and the electronic evaluation unit ( 11 ) is configured to generate the at least one idling parameter based on electrical measurements acquired during the idle time period. Control device according to one of claims 1 to 9, characterized in that the electronic evaluation unit ( 11 ) is adapted to receive a sensor signal from the drive arrangement ( 1 ) which detects a movement of the obscuring device ( 2 ) and is set up, based on a comparison of the sensor signal with the active collision parameter set ( 13a ) a collision state of the drive assembly ( 1 ) to recognize.

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