Method and device for the positioning control of a blind or the like.

State of the art

The invention relates to a method according to the Oberbe handle of claim 1 and an apparatus according the preamble of claim 11.

Usually have shading systems, awnings or other, similar thereto facilities, for example, roll-up doors, shutters o. the like. a kind hangings or the awning cloth, which is wound onto a shaft and from this as desired in any event, more or less completeness can be deducted dig.

In connection with shading systems or Marki sen, and hereinafter the term awning is made finally used, without this limiting vorlie with respect to other applications is to understand gender invention are already more known automated control systems, which, when they are in the automated loading are operating mode, depending on whether the sun is shining or not, the awning extend, the Suns sham exposure by suitable photosensors o. the like. can be detected.

In this connection it is also already known, the extension and retraction of an awning for Sonnenein additional radiation of the wind speed from make dependent. Exceeds the Windgeschwindig a predetermined speed value corresponding to a no longer acceptable wind load the extended awning fabric quantity corresponds, then the control unit of the Mar is kisenantriebsmotors driven so that the awning is fully retracted. Since the known control device only according to the principle "awning fully extended / awning full stroke "can work concerns the disadvantage that the primary function of the awning very often not met as a sun protection system who the can, because of the not yet even at low wind sarily fast response of the control device, to the fully extended awning fabric against Beschädi conditions to protect. See. Journal "The shutters blinds farmer ", Issue 2, 1990, page 7," sales argument: light and Weather protection ".

In another context, it is, moreover, already known (DE-OS 38 06 733), for monitoring or CONTROLLED tion of a roller shutter or an awning, a provide sensor array, one for each blind individual pulse train generated by a respective individual slats a Rolladenbehangs adjacent to Sensor soft or wear permanent magnetic inserts, to which the sensor in the form of a reed switch to speaks and so when passing the hanging a generated pulse train. This pulse sequence is a stored in a microprocessor pulse train are compared and from the comparison of the Shutdown erforder in the end positions the tax signals derived. This succeeds it indeed, by evaluating the motion of the curtain Pulse train generated the individual adjustment simplify and also possibly over time occurring lengthening of the curtain automatically table to compensate; because in this known About monitoring and control drive but only on which received shutters resulting problems will remain awnings typical problems, resulting from exposure to sunlight and / or Windgeschwin speed shown recessed from the outset.

The present invention is based on the object, the useful life of an awning to increase, namely even when a wind force found is that otherwise complete a drawing of would lead awning, and at the same time safe pointed out that, regardless of which mode the awning control is respectively operated (auto automatically or manually), always the respective wind power action is considered a matter of priority, so un in all circumstances it is guaranteed that einwir kende wind forces the awning or the awning fabric Do not damage.

ADVANTAGES OF THE INVENTION

The invention solves this problem with the characterizing nenden features in claim 1 and 11, and has the front of in part, that the awning its function as a sunscreen system also retains when simultaneously Winds certain intensity occurs on the necessity to respond from the controller have to be. In this case, the control system decides that going round that the awning is caught by the printer, depending but only up to such a position, in which the then correspondingly reduced cloth surface the acting can absorb wind load easily, so surely be remains damage free. A correspondingly partially retracted awning can therefore at the same time Maintaining its function as Sonnenschutzan location a larger, sometimes much larger have wind resistance.

In the present invention has the reaction and the incorporation of wind data absolute priority throughout the control mechanism the awning, ie depending on the prevailing wind speed can be even with manual override the awning extend only as far as due ge stored-value comparison or during adjustment given fundamental values ​​ensures that the Mar kisenwindwiderstand the load resistance. From propelled awning then stops at predetermined locations automatically, even if the Retraction command further on is legally obtained. This also applies to the fully auto matic operation of an awning, so in sol chen awnings that if it manually in this fully automatic mode are connected, in for a predetermined time period lasting Suns Extend irradiation by itself. Also in this Case the relevant wind speed in the included extension process and the Markisenendposition determined by the respective still tolerable Wind load.

It is understood that such a control completeness dig can run analog; However, it is preferred a quantized awnings reaction such that the awning gradually depending on the strength of the wind speed is retracted, thereby digi also in control tal can be worked.

Therefore, it is advantageous if, for example, only four awning extended positions defines if it can be assumed that the Windge speed anyway never comparatively kon is stant, so that in this rather rough classification - And of course there is a finer classification intra half of the frame according to the invention - at least ver will prevent that a function for Windge speed constant corrections to the Markisenpo turn position as necessary.

If one divides the wind speed values ​​in the terms

<ul><li>a) no wind,</li><li>b) weak wind,</li><li>c) average wind,</li><li>d) strong wind,</li></ul>

then one needs, which is also advantageous, at a normal awning control that anyway comprises limit switches for the two end positions, only two additional position switches, which are adapted to average awnings positions so that without much effort the following sinnfäl celled assignment is:

<ul><li>- There is no wind, the awning is fully extended,</li><li>- There is light wind, the awning by about a third retracted,</li><li>- Prevails average wind, then the Mar kise retracted by about two-thirds of its length, while at </li><li>- Strong wind completely retracted the awning is.</li></ul>

It is understood that, depending on the type of awning Thickness of the cloth, local wind conditions and. The like. Other assignments are possible, which is per without difficulty by a corresponding adjustment of the average intermediate positions, specifically in Sensorbe makes rich, realize.

present in a preferred embodiment the invention, these two additional Zwi rule sensors for awnings in intermediate positions an additional limit in the form of a Schnellendabschaltung (= cage rapide) be integrated, in which the drive opposite end of Coiled tubing may be installed. Such fast shutdown has a mechanical memory, of the position of the winding shaft to a pre given number (z. B. 10 turns) over a actual cutoff point out stores. In Ver application of such a limit for storing the middle two intermediate positions can can be freely set by the end user. It is the adjustment for that reason not these positions critical because the addition of free adjustability respective wind speeds at which they bezo gen are always within a predetermined Be Empire vary, so that it neither useful nor not is agile, to work with more accurate values.

By measures listed in the dependent claims men are advantageous developments and impr gene of the invention. It is particularly advantageous The use of a small computer, microprocessor or a suitably designed logical computing scarf tion in conjunction with storage capabilities, which this as an external sensor signals information on the Son irradiation is, the wind speed and the jewei celled position the awning are supplied.

From this information, and of guidance in the form of a suitable programming that is so formed awnings controller then able, wherein the existing four position sensors, each with four predetermine different positions of the awning, in Dependence on the quantized accordingly, in for example detected by an anemometer Windge speeds.

drawing

Embodiments of the invention are in the Drawing are planning and shown in the following Be scription explained. It shows

<b>Fig.</b> 1 in highly schematic winding tube of an awning with extended awning cover and mark of four different, depending on wind conditions ge controlled items and including Sensorsig nalverläufe for two Zwischenpositio NEN;

<b>Fig.</b> 2 also schematically a control unit in Block diagram form, the external sensor signals are conducted and what the output side Drive motor not shown separately the roller tube via relay controls;

<b>Fig.</b> 3 a possible embodiment of the Ab running the awning control with sun and Wind action representing flowchart and

<b>Fig.</b> 4 shows a possible embodiment of a Flußdia program for determining the awning position from the existing sensor signals, while <b>Fig.</b> 5 a flußdiagrammähnliche solution for capturing and Quantization of wind speed Vw shows.

Description of Embodiments

The basic idea of ​​the present invention is Intermediate positions in a motor-driven to create awning or shading system, which on respect each prevailing wind speed are and so ensure that the optimum function is retained as the sun protection system with simultaneity tig optimal protection of the awning against acting Wind load.

Here, a preferred embodiment vorlie gender invention, the quantized, so gradually realized actuating movement of the awning over the GESAM th stroke of the extension movement, so that, as in a simplified as explained below execution for example shown in more detail, in addition to the those who usually a motor in the control area driven awning integrated limit switches (a Mileage position - maximum extended position) Intermediate position sensors are provided, which here two intermediate positions E<b>2</b> and e<b>3</b> in addition to the fully retracted end position E<b>1</b> and being fully retracted end position E<b>4</b> capture (<b>Fig.</b> 1).

For this purpose, two additional sensors provided see the like in a simplified embodiment, are formed and connected such that a the to Coiled tubing adjacent position E<b>2</b> appealing Sen sor then a highly continuous, ie electrically from 0 to high (high-lying) signal when the A take this position E<b>2</b> is exceeded; the Sen sor then maintains the hilltop output, wherein mutatis mutandis during extension when crossing the position E<b>2</b> in this extension direction, the sensor output signal changes from high lying to 0.

The second position sensor is then used to detection ment of approximately between the position E<b>2</b> and the fully extended end position E<b>4</b> located ends Zwi ate position E<b>3</b> as in <b>Fig.</b> 1 indicated and is so designed to retract when an overhead Output to 0 and changes during extension in the reverse direction, as well as the Dar position of <b>Fig.</b> 1 can be removed, the Sig nal of the intermediate sensor for position E<b>2</b>Which in following the sensor S_E2 is called, between the positions e<b>1</b> and e<b>2</b> is high and between the Po e positions<b>2</b> to e<b>4</b> having zero value, while the sensor S_E3 from the position E<b>1</b> until Posi tion e<b>3</b> has zero value and between E<b>3</b> and e<b>4</b> is high.

In this way, is a problem of discrimination provided for a total of four awning positions step e<b>1</b> to e<b>4</b> possible, as well <b>Fig.</b> 4 shows.

Here are two aspects to distinguish.

<ul><li>- The awning can be anywhere, Example are manually predetermined position while Wind predetermined intensity arises.</li><li>- The awning extends in automatic mode or manually controlled in a predetermined position, while Wind action prevails.</li></ul>

In the first case are necessarily constant Sen amplified before that as in <b>Fig.</b> 4, to Positioning the awning are discriminated can, while in the second case, the sensor signals on reaching and exceeding the positions E<b>2</b> or e<b>3</b> have a bounce, either come down or go up, so that these in Thus, the corresponding drive control signals for can win the engine.

The two intermediate sensors in fully beliebi ger way be formed; preferably, to electromechanical switches, each on a predetermined number of winding shaft revolutions speak and then each other in their Schaltzu standing pass.

A simplified flow diagram in principle the union control flow according to the invention in a possible embodiment shows, in <b>Fig.</b> 3 Darge provides; starting from a wind sensor block wei ter below with reference to the representation of the <b>Fig.</b> 5 still ge more precisely will be explained and an analog control circuit or a microprocessor, for example, four, depending on the respective wind speed setpoint values ​​for the awning position makes available, it is determined at decision block II initially, whether the awning control system in automatic mode is or whether manual intervention is carried out or in the course.

the awning control is in the auto matic shoot, then at decision block III Festge be is if sunlight is present or not. If there is no sunlight available, is the awning over the circuit block IV retracted; the sun is shining, then was made to the Retraction command Awning according to Block V, however considering the wind conditions that have absolute priority. Decision block VI therefore determines whether wind action is present or not; this is true, is of the sensor block I according to Windver ratios prescribed position setpoint x_p With the actual position x_is compared. If the actual value to the setpoint, then the controller determines via the circuit block VI that the awning is retracted, namely until the decision block VII Notes that the actual value of the awning substantially the wind speed standard value. If so, the further movement of the awning is stopped, and the current operation is completed. However, because the wind conditions change at any time can, the loop returns to the input of the decision tion blocks V back and constantly monitors whether the now occupied position of the awning yet the wind conditions or whether in more wind freshens the position further back genome must be men.

Here, incidentally, as dashed in <b>Fig.</b> 3 still shown, a further decision block after completion of a first running in of the Mar Connect kise, labeled VIII and determines whether going away soon again another The awning is possible, when the wind from accepts or goes to 0V. It is understood that the this decision block VIII is equipped to a Retraction command only be issued where the position setpoint selection by the instantaneous Windgeschwindig speed is one level higher than the actual position the awning, so that they actually closest to the higher level, ie for example from the position e<b>2</b> at the position E<b>3</b> or from the latter to the Posi tion e<b>4</b> can come forth. In this case, was made ent a Retraction command to the next position level Speaking Block IX, while the loops education to the entrance of the block IV, of the new Mar kisenistposition with the now given windbezo antigenic new awning setpoint position compares.

Since the value and setpoint data jewei the time switching and decision blocks for proces processing are fed, can change continuously, can the decision block VIII also ensure that when in fully abflauendem Wind the Einnah me another extended position of the awning is possible, the awning then also in this new Final position which the provisions laid down here four Gradations, the maximum extended position E<b>4</b> is, be moved.

the control system not in the automatic operation, then at decision block X Festge is whether the awning is extended; she is from down, then come full circle to the entrance the decision block VI.

To quantify the influence of wind sizes, one can corresponding to the representation of the <b>Fig.</b> 5 so proceed, that each measured value of Windgeschwindig speed V_W on one of the number of desired levels corresponding number of decision-making or Ver equal blocks A, B, C, D, F, in a discrete Implementation, for example, window comparators may be, with predetermined Windschwellwerten V_Wp. V_{W (p-1)} ... Match or exceed this. Depending on the results go to the decision blocks A, B ..., respectively downstream circuit blocks A ', B', C '... converted position output signals x_p, x_p-1 selectively on each high-lying Poten TiAl or it is also possible to use a common From input signal to create that einwir depending on the kenden Winds a different Amplitude value, with which then weitergearbei tet can be - for example, in wind an output voltage of 0 volts, in light wind from 2 volts, with moderate wind one of 4 volts be and instantly generate.

In a similar way, according to the Dar position of <b>Fig.</b> 4, the flowchart in about a corresponds to the setpoints of the awnings Posi tion to proceed; a first decision block XI determines whether the awning at all out driving, which one of the already existing LIMIT ter may determine; has this limit angespro chen (awning fully retracted), then determines accordingly the awning position <b>Fig.</b> 1 to E<b>1</b> and a corresponding Ausgangswegsignal can x_O be.

If the awning is extended, then the sensor is signal S_E3 checks; this example, high lying, then must the awning between Posi tion e<b>3</b> and e<b>4</b> are; arises at the sensor S<b>3</b> Zero potential, then it is determined whether the sensor S<b>2</b> high-lying potential shows. Is that the case, is the awning between positions e<b>2</b> and e<b>3</b>, While when the sensor S<b>2</b> just if zero potential shows the awning necessary as between the positions E<b>2</b> and e<b>3</b> must stand.

This positioning allows easy Evaluating the sensor signals and the preparation of corresponding extension or retraction signals by the control unit, wherein the position determination of the <b>Fig.</b> 4 of a stationary state and the emanating Determination also any intermediate position the awning allows. From the thus obtained Output signals is then determined whether these the respective wind certain Positionssollwertsigna len x_p match - there are differences, travels the awning over to the next position.

It is understood that the in dynamic mode Awning, for example, when manually Ausfahrbe fail is issued, the controller on the signal change jump, ie the edge in the output signals of Intermediate position sensors S_E2 or S_E3 responding and in this case, for example, when extending the Awning immediately after passing the position E<b>2</b> then clocking, when the corresponding wind-determined Position signal predominantly average wind indicating that an extension only up to this position allowed.

The same applies for the other positions, it recognizable when wind certain retract the awning shortly after the respective actual position signal is clocking.

The previous explanation shows that the most sense each having a high (logical 1) or zero signal (Log 0) is worked, what the rest of the Dekodie tion with the aid of a suitable diode array makes sense especially true because the various nenen high or low lying outputs the sensors or wind speed-Umsetzschal tions corresponding inputs of a diode matrix can be supplied, which then, after appropriate Ent encryption the respective outputs purports whereby such a diode matrix corresponding one Number of each of a plurality Eingangsan mergers having AND gates or other Gat contain terschaltungen in any combination can.

It may also be advantageous for the control decisions a memory, for example a use EPROM, which at its inputs as Adres se the respective operating states, so windbe agreed awnings setpoints and position specific Mar kisenistwerte and when switching to auto matic drove a signal whether sunlight be present, fed and then accordingly its addressed, the stored values ​​from gang control signals pretending. In the control apparatus<b>10</b> of the <b>Fig.</b> 2 can, therefore a logical control circuit including a suitable diodes action matrix encoding circuit or a micro processor with memory (EPROM), or even to a son -term control logic circuit, the two at their nachgeschaltetenHalbleiterschaltern outputs each <b>11</b> (For the extension of the awning) or <b>11 '</b> (for the Retracting the awning) granted control commands, which then downstream relay circuits <b>12</b> or. <b>12</b>'The drive motor control in one or other direction of rotation cause. The dently or tion of semiconductors <b>11</b>. <b>11</b>'May on LEDs <b>13</b>. <b>13</b>'Carried out so that the direction of movement is displayed a display to the outside.

Since the entry movement or exit movement the awning the intermediate position sensors S<b>2</b> and S<b>3</b> each in different modes of action beauf beat - the gauge jumps in its output signal either from high to low or vice versa - can it make sense, depending on Einfahrt- or Exit motion to set memory, each having its one or the other switching state is maintained until the respective sensor in the opposite direction "überfah ren is "- this is also useful if the Sen sors in their response by the awnings movement are only triggered, so a tripping tion takes place, which again upon further continuous expires.

It is understood that the position sensors in vielfäl tiger manner can be formed and not notwendi be sarily physically existing single switch have to. A preferred possibility for realizing of position sensors could, for example, the fact exist, a z. B. winding shaft speed-pulse-gest your th incremental or just one point ahead watch of a certain reached counts the respective corresponding signal Markisenistposition e<b>1</b>, e<b>2</b>, e<b>3</b> ... Releases.

It can all in the description, claims and the drawing shown both a individually for themselves or in any combination with be each essential to the invention.