DE10051263A1 - Time switch, especially for blinds, has opening/closing times fed to microprocessor by scaled signal generators, performs opening/closing for enough time to reach end switch actuation - Google Patents

Abstract

The device compares the current time of day with entered opening and closing switching times and when these are exceeded carries out opening and closing. The opening and closing times are fed to a microprocessor (MP) by scaled input signal generators (P1,P2) and the opening and closing are performed for a period sufficient to reach end switch actuation.

Description

The invention relates to a time switching device, in particular for opening and closing a blind using a limit switch controlled direction reversible motor, wherein one by means of input signals in a microprocessor current time, an on-switching time and an on-switching time are entered and the the current actual time is saved in increments and on a time display is shown and each time by a first comparison of exceeding the on-switching time point is determined, taxation takes place and whenever by a second comparison the exceeding of the switching is determined by the actual time, the control he follows.

It is known to open and close blinds through make a timer, the time switch rooms for the Opening process and closing process for both of them Switch outputs individually with the relevant start and end Numerous operating functions programmed for various buttons need to be, which is a significant amount of time position and adaptation to changing daylight conditions requires.

So-called aim to simplify operation Memory button controls. These each save the times an opening button operation or closing button operation for  a later repetition. The user must therefore be at one Daylight or habit change to a suitable morning or press the button in the evening. What times each stored, it is not apparent what, in particular, at use by more than one person and if there are several blinds are provided with such controls, is confusing. A Desired advance of a switching time is always first possible at the appropriate time the next day.

It is an object of the invention to provide a time switch device, especially for blinds, to reveal at any time, is easy and clear to use.

The solution is that the switch-on time and the Switching time of one scaled input each signal transmitters are supplied to the microprocessor and the control and the control for one to one limit switch sufficient period of time.

The new type of time switch allows it at any time both the timing and the timing of taxation change by adjusting the signal generator. The The setting can be read from the scales. The settings areas are useful between 5 a.m. and 10 a.m. and 5 p.m. and 10 p.m. Clock. An accuracy of the order of 10 Min. Is sufficient for practical use.

Other input means are just two buttons, the one setting the clock and on the other hand overriding the set tax times serve. Setting the clock will by simultaneously pressing both buttons via one predetermined period initiated. A flashing control of the Time display shows readiness for operation. An actuation one or the other button then leads to an up or  Counting down the time memory content. After a short Waiting time after the clock is set to standby leave and the flashing stops.

If there is no availability, you can use the one button a control and the other one Taxation take place. With only short key presses is the tax time so that a complete Blind adjustment up to their limit switch position he follows.

If one of the buttons is longer than a given one Test period is pressed, the control of the The blind immediately ends when you release the button, so that Intermediate positions can be controlled as desired.

Instead of the button controls of the blind control outputs advantageously also their control via external control means provided, the signals of the microprocessor not to Clock positions, however for immediate control in the same way as uses the key control signals. This way too switch several timers virtually synchronously or on Use the brightness signal or the like for control. The requirements the on and off switching times are advantageous over Potentiometer signals made between their maximum signal level and minimum signal level proportional about thirty Signal ranges assigned to the respective scaled time range become. The potentiometer signals are sent via a multiplexer fed to an analog / digital converter. Because only about 32 values can be resolved by measuring the time using a simple ramp voltage of a timer the digital signal that represents the analog signal.  

The potentiometers are advantageously approximately semicircular trained, with the opening potentiometer and the close potentiometer are located below. To be good The legible scales and convenient operation are the Potentiometer operating lever on the edge of a housing arranged and inside of it the time display as well the control buttons. The latter are in turn sensible above Open and below to close the blind or above to close Advance and provided below for resetting the time.

Instead of the potentiometer, other position transmitters are also available Presetting of the timing is suitable. In particular Incremental position encoder, the directional code signals and deliver a zero signal to the microprocessor suitable. The disadvantage, however, is that in the event of a power failure, the is not bridged by a backup battery, the position information is lost and with the setting of the clock also the Zero positions and then the control positions are set Need to become.

The state after an unbridged power failure will Expediently indicated by the clock flashing continuously until the clock is restored and necessary if the new hiring the tax times were made.

Furthermore, it is advantageously provided that the zero position of the Input signal generator, d. H. the position signal generator or Potentiometer, to be evaluated separately in the microprocessor, that there is then no switch-on or switch-off time for comparison is provided with the time and therefore no corresponding control signal is output. The rest The setting range of the input signal transmitter is expediently set to 5 Hours distributed, so that in thirty sections The resolution of the time limit of 10 minutes is reached.  

The structure of the device is advantageous in a flush-mounted block, on which a cover plate similar to one Switch cover plate is mounted under which the input signal transmitter and switch contacts are mounted and by their Breakthroughs are sufficient for adjusting the input signal transmitters, where pointers are arranged to point to the scales. The buttons are preferably attached to the with a film hinge Articulated cover plate. In the middle is a breakthrough for the LCD Clock display provided.

In the flush-mounted block are the microprocessor, its power supply, the switching relays and a terminal block. One of the Relay expediently has a make contact, which is the mains phases switches to a changeover contact of the second relay, its work and rest contact via the respective associated Limit switch of the blind drive to the direction connections of the motor to be switched, between which one phase pushing reactance is arranged.

It is advantageous to facilitate the time setting provided that whenever a change of attitude has been made, i.e. a changed Auf- or Activation time is taken over, this instead of the actual time the time display in flashing mode and so for some Seconds is displayed.

Another advantageous embodiment is a control panel built-in version, preferably as a multiple control device is trained. For example, this control device is for designed three blinds and thus exhibits six scaled Time setting means, e.g. B. potentiometer, and two for each blind associated relays on.  

In addition, two keys and two external keys are advantageous Switch inputs are provided for one blind each. The Inputs and outputs are operated in a multiplex program. The entire arrangement requires six standard module widths usual installation system. The clock display and the setting means of the Clocks are shared across all channels.

As is known from time switches, there are four for setting the clock Adjustment buttons are provided, one of which is the "time set "is used, two" + "," - "change buttons are and an "OK button" for confirmation and time acceptance in the Actual time memory is used.

These last three buttons are also for a date and Advantageous to use weekday setting by the Date setting is initiated by a "date button", whereupon the date on the LCD Display device is given in the form of month and day. The the currently set day of the week is expediently shown on an LED The bar is displayed under the appropriate label.

The saved date is used in conjunction with a corresponding program in a known manner a summer / winter time changeover. With another key "SU / WI" leaves the adjustment of the actual time through an actuation sequence Activate each for Europe, USA, GB or on a manual Changeover or changeover from an off state. The each The selected status flashes briefly on the LCD display displayed.

The ongoing day of the week calculation and display is advantageous used by a weekend blocking function for each blind channel is introduced, each by pressing a button activated and on an LED display assigned to the channel  is signaled and by pressing another button is deactivated.

There can be one lock button per channel or one press the open and close buttons together to lock or Unlocking can be used.

The weekend lock allows it to be used in one The automatic function on Saturday and Sunday for block individual channels. Example: In the office wing (channel 1) and In the storage room (channel 2), the blinds should be on weekends remain closed, the shop window blinds (channel 3) however be controlled by the automatic program. The The weekend lock function only suppresses the automatic system function, manual control is always possible.

The main advantages for the user are:
The entire timing technology of a blind system is housed centrally in a distribution cabinet;
simple operation (complete programming time approx. 5 minutes);
the user can always tell from the control unit when the blinds are moved. (Position of the adjusting elements);
easily changeable time values (change of seasons);
each of the two functions "automatic opening" or "automatic opening" can be deactivated separately (eg weekend: automatic departure in the evening, but manual opening in the morning);
Weekend locks for each channel can be selected individually;
the control system can be expanded as required by:
a sensor module (wind / sun) if wind protection or sun protection functions are required, or by an astronomical module for additional control depending on sunrise / sunset (adjustment to the seasonal changes).

Advantageous configurations are shown in FIGS. 1 to 6:

Fig. 1 shows a block diagram of the timing control;

Fig. 2 shows a top view of a concealed version;

Fig. 3 shows an exploded view of the operating and display parts of Fig. 2;

Fig. 4 shows an alternative detail to the input signal generator;

Fig. 5 shows a control scheme of the program flow;

Fig. 6 shows a multi-channel blind control device.

Fig. 1 shows a block diagram with the wiring of the microprocessor (MP). This is connected on the input side to two input signal transmitters, here potentiometers (P1, P2), the control signals of which are fed to an analog / digital conversion (A / D) via an input multiplexer (MPX). Furthermore, two buttons (TA, TZ) and two inputs for external signals (S1, S2) are connected to digital inputs. A clock clock circuit (CL) controls the internal clock counters of the microprocessor chip. A time display LCD and two relays (R1, R2) are connected on the output side.

One of the relays (R1) controls a make contact (AK), which the Mains phase (P) on a changeover contact (W) of the second relay (R2) switches off its make and break contacts via terminals the switch block are led out. These contact connections in the case of blind control via a associated limit switch (EA, EZ) to the connections (MA, MZ) the direction-controlling windings of the motor (M) connected,  between which a capacitor (C) as a phase shifter connected. The mains neutral (N) is on the motor (M) and connected to a power supply (NT), which also connects to the Phase conductor (P) is connected.

Fig. 2 shows the top view of a flush-mounted device, the cover plate (AP) carries all display and operating parts. The time display LCD is placed in the middle of a breakthrough and above and below an almost semicircular cutout is made, in each of which an adjusting lever (H1, H2) with a scale pointer is arranged, which points to a time scale of the set-up time (AS) or closing time (ZS) shows. The scales are labeled with the hour names 5 to 10 or 17-22, as well as with an exhibition -OFF-. Circular segment-shaped buttons (TAT, TZT) are hinged with film hinges between the time display LCD and the cutouts of the adjusters (H1, H2) and otherwise cut free. They have symbols that point up and down and represent the direction of the functional effect.

Fig. 3 shows an exploded view of the front-lying components of the arrangement of Fig. 2. The cover plate (AP) has the partial ring-shaped cutouts (D2, D3) with the scales (AS, ZS), the key buttons (TAT, TZT) and the central Breakthrough (D1) for the LCD display. Locking webs are molded on the edge, which serve to hold the unit in the flush-mounted box.

Behind the cutouts (D2, D3) are ring-shaped slides (L1, L2) concentrically rotatably mounted, each one carry the adjusting lever (H1, H2) on the front and on the back with are provided with a sliding contact on one of the signal encoder or potentiometer tracks (PB1, PB2) that grinds on the contact plate (KP). This also carries  Connections (LCK) for the LCD display and for the key contacts (TK1, TK2) and on the other hand connections for the microprocessor.

Fig. 4 shows half of an alternative contact plate (KP1) which instead of the potentiometer tracks sector-wise interconnected, angularly offset contacts (SK1, SK2), which are each connected to the basic contact track (GB) by the contact grinder on the sliders (L1, L2) and emit directional de / increment signals when adjusting. A zero position contact (NK1) is arranged at the end of each pair of tracks.

Fig. 5 shows a functional diagram of the program of the micro processor. Gate symbols are used which illustrate the logical connections of the signals and states. Two interlinked complexes are shown, one of which relates to the evaluation of the key operations and the other to the evaluation of the input signals of the setting means.

The two key signals (TA, TZ) are in their four states decoded in a key signal decoder (TDEC). Are both buttons activated, a first time counter (Z1) is activated, the one Test time (P2) of e.g. B. counts 3 sec. Is the test time (P2) expired and the two buttons (TA, TZ) are still a second time counter is activated, the one Clock period of z. B. counts 5 sec during which one LCD flashing is controlled and preceded by a clock signal (CL) or reset clock positions (CL +, CL-) is released as long as only one of the buttons (TA, TZ) is pressed at a time. The Stell signals (CL +, CL-) are in a suitable place in the actual Time counter (ISTT) fed in at its basic input like the other time counters are also fed with the clock signals (CL) is so that it counts the time of day.  

As long as a key is pressed to set the clock, the second time counter (Z2), which shows the time setting period (UZ) counts, always put back.

Is the time setting period (UZ) without any other buttons actuation has expired, and then one of the keys (TA, TZ) operated, a third time counter (Z3) is started, the one Limit period (GZ) of e.g. B. counts 0.4 sec. Is during that none of the keys are pressed, so remains in a flag (FF) stored, which of the two buttons (TA, TZ) previously pressed was, and a fourth time counter (Z4) is activated, the a limit switch actuation period of z. B. 3 minutes counts down. From this the output, which is the first relay (R1) actuated acted upon. Furthermore, if the Flag (FF) the previous actuation of the control key (TA) indicates the output for the second relay (R2) is applied. Thus, pressing one of the buttons (TA, TZ) leads to one shorter time than the limit time (GZ) for opening or closing the blind.

If one of the buttons (TA, TZ) The fourth counter is operated longer than the limit time (GZ) that is, when it reaches its final state, it immediately becomes Output to the first relay (R1) controlled and depending on the Flag creation also the output to the second relay (R2). Consequently the blind control can also be set to intermediate positions be made.

For automatic time-dependent control there is a Checking and processing the input signals (ES1, ES2) to whether they are not zero or the starting position is present in which no automatic control is to take place. Furthermore, the determined position value of the With a time setting according to the scaling  a calibration (cal) normalized and in the associated Memory of the on-switching time (AT) or on-switching time point (ZT) loaded. Their content is continuously updated with the Actual time in the time counter (ISTT) with the associated comparisons (V1, V2) compared. If equality occurs and it is corresponding input signal (ES1, ES2) is not zero, the Flag (FF) set accordingly and the fourth time counter (Z4) activated, whereby the outputs to the relays (R1, R2) activated according to the flag setting.

It is always advantageous if a setting value of one Input signal generator has been taken over in a comparison (V3, V4) checked whether the value of that of the already saved the associated open or close control time differs, and if if this is the case, it is saved and the time counter (Z2) started, which controls the time display (LCD) flashing, and a flag (FF2) is set to display the newly saved Value instead of the current time for display on the Time display (LCD) brings. If potentiometer for the input can be used, the representation of the set value be much more precise than the scale to the lever.

Fig. 6 shows a panel mount device for three blinds drive controls. Two potentiometers (P1-P6) with scaled setting means are provided as well as two buttons (11, 12; 21, 22; 31, 32) that are used for immediate or direct control of the associated blinds. The width of the mounting block corresponds to six module widths in the standard system.

Four buttons serve to set the time "clock symbol", ("+", "-") and "OK" in a known manner.  

The weekday display from the LED Elements and the respective blind channel for the lock display another LED and if necessary. one associated key each (1-3).

A "Date" key is used to enter a current date and an "SU / WI" button is used to select the selection Switching between the seasonal changes of various States or the elimination of the function.

Fig. 6 shows the front of a three-channel blind control device. The terminal assignment is compiled in the list of reference symbols.

External wiring of the terminals is also shown as an example. The so-called extension inputs are each connected to a button (TE1, -TE6), of which a pair for opening and closing is arranged in the vicinity of the associated blinds (J1-J5). Another pair of buttons (TP) is used to fully open or close all blinds; it is preferably installed in a centrally accessible location. As an example, a blind group (J3-J5) is connected to an output channel via one isolating relay (TR) per blind, so that parallel operation takes place until the individual limit switch. AD analog / digital converter
AP cover plate
AS, AZ time scales
AT switch-on time
C phase shifter
cal calibrator
CL clock
CL +, CL- clock signals
D1-D3 breakthroughs
EA, E2 limit switches
EBZ limit switch actuation period
E S1; E S2 input signal generator signals
FF flag On + request
FF2 flag setting process
GZ limit period for full / partial control
H1; H2 adjustment lever
ISTT actual time counter
J1-J5 blinds
KP; KP1 contact plates
L1; L2 contact slide rings
LCD time indicator
LCK LCD contacts
M engine
MA; MZ motor connections
MP microprocessor
MPX multiplexer
N neutral
NK zeroing contacts
NT power supply
P phase conductor
P1; P2 potentiometer
PB1; PB2 potentiometer tracks
PZ test period for double button actuation
R1; R2 relay
RK work contact
S1; S2 external signal lines
SK1; SK2 contact track encoder
TA; TZ button
DID; TZT key buttons
TE1-TE6 external buttons of the three channels
TK1; TK2 key contacts
TR isolating relay
UZ clock period
V1; V2-V4 comparisons
W changeover contact
Z1 time counter; 3 sec
Z2 time counter; 5 sec
Z3 time counter; 0.4 sec
Z4 time counter; 3 min
ZT on switching time
1-3Uhr
+; - OK
DAT, SU / WI control buttons 11, 12, 21, 22, 31, 32
terminal
L phase
N zero
24 V ~ safety extra low voltage output
24 V ~ X safety extra low voltage output
E Connect the external bridge to X (24 V ~) if extension input buttons are to be operated with safety extra-low voltage
Y Connect the external bridge to E if extension buttons are to be operated with 230 V.
A1 ▲ Output channel 1 upwards
A1 output channel 1 down
A2 ▲ Output channel 2 upwards
A2 output channel 2 down
A3 ▲ Output channel 3 upwards
A3 down channel 3 output
ZE ▲ Central input for channels 1, 2, 3 upwards
ZE Central input for channels 1, 2, 3 downwards
E1 ▲ Extension input channel 1 upwards
E1 Extension input channel 1 downwards
E2 ▲ Extension input channel 2 upwards
E2 Extension input channel 2 downwards
E3 ▲ Extension input channel 3 upwards
E3 Extension input channel 3 downwards

Claims (21)

1. Time switching device, in particular for the opening and closing of a blind, by means of a limit switch-controlled direction-reversible motor (M), wherein by means of input signals in a microprocessor (MP) in each case a current time, an opening time (AT) and an opening time (ZT) are entered and the current actual time is saved in increments using a clock generator (CL) and is shown on a time display and whenever the initial switch-on time is exceeded and on a time display (LCD) by a first comparison (V1) is determined, the activation takes place and each time the activation occurs, by a second comparison (V2) that the activation time (ZT) has been exceeded, characterized in that the activation time (AT ) and the switch-on time (ZT) of a scaled input signal generator (P1, P2) are supplied to the microprocessor (MP) and that Control and the control takes place for a sufficient period of time up to one limit switch actuation (EBZ). 2. Time switching device according to claim 1, characterized records that the input signals for setting the current time using two buttons (TA, TZ) on the microphone processor (MP) are signaled by each after simultaneous actuation of both buttons (TA, TZ) at least over a specified test period (P2) has been determined during a clock setting period at Determine the actuation of one or the other Button (TA, TZ) fast forward or reset of the current time and that outside of  Clock setting period each time a Pressing one button (TA) opens and each time it detects an actuation of the other key (TZ) a control takes place. 3. Time switching device according to claim 2, characterized records that each time outside the clock setting period an operating time of one of the keys (TA, TZ) below a limit period (GZ) has been determined that Open or close for one to a limit switch sufficient period of time (EBZ) and others if opening or closing with the end of the key activity ends. 4. Time switching device according to one of the preceding Claims, characterized in that the sufficient Period (EBZ) for the limit switch actuation to approx. 3 Minutes the limit period (GZ) to approx. 400 ms, the clock setting period (UZ) approx. 5 seconds by pressing a button for setting the time and the test period to approx. 3 sec are set. 5. Time switching device according to one of claims 2 to 4, characterized in that during the clock setting period the time display (LCD) is controlled flashing. 6. Time switching device according to one of claims 2 to 5, characterized in that parallel to the keys (TA, TZ) acting external signal lines (S1, S2) to the micro processor (MP) are connected.   7. Time switching device according to one of the preceding Claims, characterized in that the input signal transmitter (P1, P2) potentiometer, digital position code encoder or incremental code encoder with a zero position report, are. 8. Time switching device according to claim 7, characterized indicates that the end position reports do not Switching time (AT) or switching time (ZT) signal and the other position values or codes 10-minute steps are assigned and the first Position value or code, respectively, the switch-on time (AT) 5 a.m. or the switch-on time (ZT) 5 p.m. are assigned and scaled. 9. Time switching device according to one of the preceding Claims, characterized in that each time one Changing a setting of an input signal generator (P1, P2) by a comparison (V3, V4) of the new standardized Activation or activation time with the still saved corresponding activation or activation time (AT, ZT) is determined, this instead of the actual time of the LCD display for a predetermined time to flash the display is fed. 10. Time switching device according to one of the preceding Claims, characterized in that the input signal transmitter (P1, P2) each on an approximate semicircular pitch circle are arranged within whose time display (LCD) is placed and each one of the buttons (TA, TZ) on or off the timer Assigned above or below the time display (LCD) are arranged.   11. Time switching device according to claim 10, characterized records that the keys (TA, TZ) circular segment are trained. 12. Time switching device according to one of claims 7 to 11, characterized in that a contact plate (KP) Connection points (LCK) for the time display (LCD), the Position code contacts (PK1, PK2) or potentiometer tracks (PB1, PB2) of the input signal transmitters (P1, P2), switching contacts (TK1, TK2) of the buttons (TA, TZ) and microprocessor connections wearing. 13. Time switching device according to claim 12, characterized shows that together with output switching relays (R1, R2) is mounted encapsulated on a flush mounting frame and an outer cover plate over the contact plate (KP) (AP), the breakthroughs (D1-D3) for the Time display (LCD), control lever (H1, H2) of the input signal generator (P1, P2) and their scaling (AS, ZS) and hinge-like buttons (TAT, TZT) of the Buttons (TA, TZ). 14. Time switching device according to claim 13, characterized records that the control lever (H1, H2) with concentric Bearing rings (L1, L2) are connected under the Cover plate (AP) are rotatably mounted and grinding contacts of analog or digital input signal transmitters Wear (P1, P2). 15. Time switching device according to claim 13, characterized indicates that one of the output switching relays (R1) has a Changeover contact (W) actuated and the other one working contact (AK) actuated and a phase connection (P) to the Normally open contact (AK) and the switched phase on  the changeover contact (W) is placed and its working and Idle connections each with a limit switch (EA, E2) for a statement or delivery are connected between whose outgoing contacts have a phase shifter impedance (C) is connected and each to a motor winding connection (MA, MZ) are led, its windings are otherwise connected to a neutral conductor (N). 16. Time switching device according to one of claims 1 to 9, characterized in that on the microprocessor (MP) several pairs of input signal transmitters (P1-P6) and Enter keys (11, 12; 21, 22; 31, 32) as well as external ones Input lines (E1-E3) and relays with output connections (A1-A3) for opening and closing are connected and a program this in one Served multiplex operation. 17. Time switching device according to claim 16, characterized shows that input signal generator (P1, P2; -P6) rotary are potentiometers. 18. Time switching device according to claim 16 or 17, characterized characterized in that it is installed in a control panel is installed and occupies six standard module widths. 19. Time switching device according to one of claims 16 to 18, characterized in that for the time input a "Time" button, up and down buttons (+, -) and one Confirmation button (OK) on the microprocessor (MP) are connected, whose program serves them. 20. Time switching device according to one of claims 16 to 19, characterized in that a to the microprocessor (MP) Date enter button (DAT) and a summer / winter time  Shift key (SU / WI) are connected and the program operated this, whereby during a date entry this Date for a predetermined time flashing on the LCD display is displayed instead of the actual time. 21. Time switching device according to one of claims 16 to 20, characterized in that to the microprocessor (MP) On the output side, a day of the week LED display is connected is operated according to the program and a decommissioning of Time control of the outputs (A1-A3) on the weekend days can be entered by key inputs (1-3) and on LEDs are displayed.