JPH07111850B2 - Pushbutton switch motion detector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-button switch operation detecting device that is preferably used for dimming control for dimming an illumination load.

BACKGROUND ART Conventionally, in a control device in which an input operation is performed by a large number of push button switches, a signal is transmitted to a central control circuit provided in association with the push button switch when operating the control device. In the case of a failure of a plurality of terminals or a display element that is turned on / off depending on the switching state of the push button switch, another inspection device is required to determine the failure location. Therefore, there is a problem in that wasteful work time is spent to determine the failure location.

The purpose of the present invention is to provide a push-button switch for inputting operation,
It is an object of the present invention to provide a push-button switch operation detecting device capable of automatically inspecting an operation block including a terminal device, a display means, and the like provided in association with the push-button switch and detecting an abnormality.

Configuration of the Invention In the present invention, (a) a central control circuit 21 and a terminal device 30 provided in each of a plurality n of control blocks B1 to Bn are connected via a common signal line 22, (b) A push button switch 28 is connected to each terminal device 30 and a display means 29 is connected to the terminal device 30. (c) The push button switch 28 has a spring force applied to the base 80 in a predetermined direction A1 by a spring 82. The pressing member 81 is provided, the pressing member 81 is provided by inserting the panel plate 87, and the conducting member 86 provided on the pressing member 81 and the electrodes 84, 85 provided on the base 80 face each other. The conductive member 86 and the electrodes 84 and 85 of the push button switch 28 are
By the pressing operation of the pressing member 81 against the spring force of the above, the first switching state is set, and when the pressing operation is not performed, the second switching state is set. (D) The signal line 22 also has a plurality of loads 26. , 27 are connected to the operation control circuits 24 and 25, and (e) the central control circuit 21 is energized by turning on the power switch SW1 to change the switching state of the push button switch 28 to the terminal device. A control signal is derived from 30 so as to operate the load 26, 27 corresponding to the push-button switch 28 by the operation control circuit 24, 25 via the signal line 22 and detected. A push-button switch operation detecting device for displaying the operating states of the loads 26, 27 corresponding to the push-button switch 28 by means of the display means 29. (f) The central control circuit 21 includes (f1) the power switch SW1. Means to detect closing, and (f2) throwing power switch SW1 Immediately after that, the means for detecting the switching states of all push button switches 28 connected to each terminal, and (f3) in response to the output of the switching state detecting means, the push button switches 28 are operated to make the first switching state. When it is malfunctioning, the control signal for the operation of the loads 26 and 27 is not output, and the pushbutton switch 28 in the first switching state due to the malfunction is connected to the terminal device 30 to which the pushbutton switch 28 is connected. By means of the display means 29, means for indicating that the push button switch 28 in the first switching state is malfunctioning, and (f4) all the push button switches 28 respond to the output of the switching state detecting means with the first means. When the switch is in the 2-switching state, the control signal is derived according to the first switching state by the push-button switch 28 thereafter. It is a motion detection device of H.

Embodiment FIG. 1 is a block diagram of a light control device 100 according to an embodiment of the present invention. The central control circuit 21 is connected to the operation input circuit, the dimming circuit 24, and the blinking circuit 25 via a pair of signal lines 22. As the signal line 22, for example, a twisted wire which is inexpensive can be used. The central control circuit 21 includes a microcomputer and the like, and controls as described later.

The central control circuit 21 receives the input information from the operation input circuit 23, and derives a control signal corresponding to the operation mode to the dimming circuit 24 and the blinking circuit 25. The power supply circuit 101 supplies power to each circuit of the dimmer 100 via the power switch SW1 from the AC power supply 45.

FIG. 2 shows a specific configuration of the operation input circuit 23 and the blinking circuit 25. The operation input circuit 23 is on / off controlled along with the designation of a scene for setting the dimming level of a large number of lighting loads 26 connected to the dimming circuit 24, the setting of the memory of the dimming level, the designation of the crossfade time, and the like. A push button switch 28 for setting an on / off state of a load 27 such as a lighting load is provided. Further, the operation input circuit 23 includes a display element 29.
The display element 29 displays the operating states of the loads 26 and 27.

The terminal device 30 provided in the operation input circuit 23 has an address unique to it, and when addressed by the central control circuit 21, sends a signal corresponding to the push button switch 28 via the signal line 22. To the central control circuit 21. Further, the central control circuit 21 gives a signal indicating the operating state of the loads 26, 27 corresponding to the connected push button switch 28 to the terminal device 30, whereby the display of the display element 29 is controlled.

The blinking circuit 25 has a terminal device 31 and a relay 32, and when the central control circuit 21 derives and addresses an address signal corresponding to the terminal device 31, the terminal device 31 outputs a control signal from the central control circuit 21. In response to, the relay 32 corresponding to the load 27 is controlled, whereby the load 27 is turned on or off. In the central control circuit 21, each load 27
The ON / OFF pattern of is stored in advance, and the scene is specified by operating the pushbutton switch 28 in the operation input circuit 23, whereby the central control circuit 21 addresses the terminal device 31 of the blinking circuit 25, The control signal causes the load 27
Can be selectively turned on / off.

FIG. 3 is a block diagram showing a specific configuration of the light control circuit 24. The dimming circuit 24 receives the signal from the central control circuit 21 via the signal line 22, and receives the control signal from the terminal device 34 that takes in the control signal when the addresses match and the control signal from the terminal device 34. Then, it has a storage control circuit 35 that performs an operation in response to the control signal, and a dimming drive circuit 36 that drives a plurality of lighting loads 26 in response to the output from the storage control circuit 35. The storage control circuit 35 includes an input / output circuit 37 that receives a signal from the terminal device 34, a processing circuit 38 realized by a microcomputer or the like, and a memory 39. Further, the storage control circuit 35 is based on the calculation result of the processing circuit 38. And a dimming control circuit 40 for performing dimming control. The dimming control circuit 40 activates the dimming drive circuit 36. The storage control circuit 35 has (a) dimming control for setting a predetermined dimming level, (b) storage of the dimming level, (c) scene reproduction, and (d) operation modes of cross-fade control. To do. The dimming control is based on a control signal from the central control circuit 21 and is based on a large number of lighting loads.
Light is controlled by energizing 26 to a predetermined brightness. The storage of the dimming level is an operation of performing dimming control of each lighting load 26 and storing the brightness set in the memory 39. This storage can be performed for each of a plurality of scenes. Each scene is designated based on a control signal from the central control circuit 21. In this way, the brightness of the lighting load 26 of each scene can be stored. Scene playback means
The brightness of the lighting load 26 stored for each scene is reproduced by the designation of the scene by the central control circuit 21. The designation of the scene to be reproduced is performed by a control signal from the central control circuit 21. The cross-fade control is a control for gradually bringing the brightness of each lighting load 26 closer to the next scene when moving from one scene to the next and reproducing the scene. This is performed based on the control signal from the central control circuit 21.

FIG. 4 is a specific electric circuit diagram corresponding to one lighting load 26 of the dimming drive circuit 36. Dimming control circuit 40 to line 41
The photodiode 42 is driven by the phase control signal from ## EQU1 ## which causes the photothyristor 43 to fire. The conduction of the photothyristor 43 causes the triac 44 to be fired. The triac 44 is connected to the lighting load 26 and the AC power supply 45 in series.

FIG. 5 (1) shows the voltage waveform of the AC power supply 45, and FIG. 5 (2) shows the phase control signal from the dimming control circuit 40 given to the line 41. According to the level of the phase control signal, the lighting load 26 is energized with the triac 44 conducting during the period shown by the diagonal lines in FIG. The time indicated by the diagonal lines is changed, the brightness of the lighting load 26 is changed, and dimming is performed.

FIG. 6 is a block diagram showing a specific configuration of the light control circuit 24a according to another embodiment of the present invention. This embodiment is similar to the structure shown in FIG. 3, and the corresponding portions bear the same reference numerals. A notable feature is the provision of a fader 46 in the storage control circuit 35 that can be manually operated by the operator. The output from this fader 46 is
It is converted into a digital value by the analog / digital converter 47 and given to the processing circuit 38. The digital signal for performing the phase control from the processing circuit 38 is given to the digital / analog converter 48 and converted into an analog value, and the line 49
Is given to the dimming drive circuit 36a. Thus the fader 4
By the operation of 6, it is possible to change the brightness of the lighting load 26 and perform dimming. The fader 46 is, for example, a lighting load 26.
The lighting load 26 and the fader 46
Is provided.

FIG. 7 is an electric circuit diagram showing a specific configuration of the dimming drive circuit 36a, and FIG. 8 is a waveform diagram for explaining its operation. The power from the AC power supply 45 is rectified from the transformer 50 via the diode bridge circuit 51, and is given from the line 52 to the integrating capacitor 54 via the resistor 53. Line 52
Further, a transistor 56 is connected to the resistor 56 via a resistor 55. Another resistor 57 is connected to the resistor 55. The output of the transistor 56 is connected to the capacitor 54 via the resistor 58. The output of capacitor 54 is from line 59 to resistor 60.
Is given to the inverting input terminal of the comparison circuit 61 via. The output from the digital / analog converter 48 via the line 49 is given to the non-inverting input terminal of the comparison circuit 61 via the resistor 62. The output from the output terminal 63 of the comparison circuit 61 is given to the pulse transformer 65 via the capacitor 64. A resistor 66 is connected in parallel to the primary coil of the pulse transformer 65. The output of the secondary coil of the pulse transformer 65 is given to the triac 67 and the triac 67 is ignited. The triac 67 is connected to the lighting load 26 and the AC power supply 45 in series.

FIG. 8 (1) shows the voltage waveform of the AC power supply 45, and the shaded portion shows the period during which the triac 67 is conducting. As shown in FIG. 8 (2), the transistor 56 is cut off when the voltage of the AC power supply 45 is low and near the zero crossing, and is conductive for the remaining period. The output waveform of the integrating capacitor 54 is as indicated by the reference numeral l1 in FIG. 8 (3), charging is performed when the transistor 56 is cut off, and discharged when the transistor 56 is conducting. The voltage waveform applied from the digital / analog converter 48 to the non-inverting input terminal of the comparison circuit 61 via the line 49 is shown by the line 12 in FIG. 10 (3). Comparison circuit
61 is an output terminal of the integrating capacitor 54 when the voltage derived from the line 59 is equal to or higher than the voltage from the line 49.
A low level signal is led to 63, which causes triac 67 to conduct. In this way, the lighting load 26 is energized in the period shown by the broken line in FIG. 8 (1) as described above.

FIG. 9 shows an operation panel in which the operation input circuit 23 is incorporated.
FIG. 68 is a front view of 68. The operation panel 63 is a power switch SW1.
And a plurality of operation blocks (B1, B2, ..., Bn). Each operation block has a pushbutton switch 28 as described above.
And a display element 29. As shown in FIG.
The terminal device 30, the display element 29, and the push button switch 28 are provided in large numbers, and in order to prevent difficulty in determining a failure location at the time of failure, the central control circuit 21 has an operation input circuit as described later. Executes 23 failure determination control.

FIG. 10 shows a simplified flow chart of the failure determination control of the central control circuit 21.

The central control circuit 21 uses the power switch SW1 at step n1.
Detect the input of. Central control circuit at step n2
21 transmits a predetermined control signal to all the terminals 30 of the operation input circuit 23.

When the control signal is given, the terminal device 30 detects whether or not the input switch 28 is conducting.

In step n3, the result detected by the terminal device 30 is given to the central control circuit 21 as described above, and it is judged whether or not there is the push button switch 28 that is in conduction, and any terminal device 30 conducts (input). If there is no information, it shifts to the normal operation mode. If there is continuity (input) information from the terminal device 30, the process proceeds to step n4. In step n4, a control signal for turning on the display element 29 corresponding to the conductive input switch 28 is given to the terminal device 30 which has received the input information. The control as described above is repeatedly executed until the input information disappears from the terminal device 30.

FIG. 11 shows a flow chart of an embodiment of the failure discrimination control of the central control circuit 21 in more detail of the flow chart explained in FIG.

In this embodiment, step s1 corresponds to step n1 described above, steps s2 to s5, s8 to s10 correspond to step n2,
Step s6 corresponds to step n3. Further, step s7 corresponds to step n4. The details will be described below.

At step s1, the central control circuit 21 turns on the power switch SW.
Detects that 1 is conducted. In step s2,
For the l-th push-button switch 28 of the m-th terminal device 30,
Initialize the value for sequential control (m → 0, l → 0)
To In step s3, the terminal device 30 is advanced by one. At step s4, it is determined whether or not the processing has been completed for n terminal devices 30. When all are finished, it returns to normal operation. If not finished, move to step s5.

In step s5, the central control circuit 21 gives an address to the m-th terminal device 30 designated in step s3. Each terminal device 30 has r push button switches 28.

At step s6, it is detected whether or not the l-th push-button switch of the m-th terminal device 30 is conducting.
If the l-th push-button switch 28 is conducting, the process proceeds to step s7, and if it is not conducting, the process proceeds to step s8.

In step s7, the central control circuit 21 determines that the l-th push-button switch 28 in the m-th operation block Bm is conducting and is malfunctioning, and the corresponding terminal device.
An address signal and a display control signal are given to 30 to cause the display element 29 corresponding to the 1st push-button switch 28 which is conducting to blink.

In step s8, the push button switch 28 is advanced to the l + 1th position, and then the process proceeds to step s9.

In step s9, it is judged whether or not the failure determination has been performed for all the number r of push button switches 28 provided in the m-th operation block Bm, corresponding to step n2 in FIG. If not, go back to step s5,
By repeating the operation of steps s5 to s8 in this way,
Immediately after the power switch SW1 is turned on, it is discriminated whether or not there is any one of the r push button switches 28 connected to the m-th terminal device 30 that is conducting and malfunctioning.
The display element 29 corresponding to the push-button switch 28 having such a malfunction is blinked.

If it is determined in step s9 that the failure determination of all the number r of push button switches 28 of the m-th operation block Bm has been completed, the process proceeds to step s10, l = 0, and then to step s3. Then, m is incremented by 1. Such operation is performed for a total of n operation blocks B1 to Bn.
Is done about.

In this way, the central control circuit 21 executes the failure determination control.

Here, the operator performs an operation as shown in Table 1. The operation shown in Table 1 is performed to check whether or not the operation detecting device of the push button switch of the present case operates normally.

That is, the operator turns on the power switch SW1 by turning on one or more input switches 28 of one of the operation blocks Bi, B2, ... At that time, the display element 29 corresponding to the push button switch 28 which is turned on blinks. Next, when the operator turns off all the push button switches 28, the normal operation mode is restored.

By performing the above-mentioned operation, the push button switch
It is possible to determine the failure of the display device 29, the display device 29, and the terminal device 30.

FIG. 12 is a cross-sectional view of the push button switch 28 in a non-pressed state (blocking state), FIG. 13 is a cross-sectional view of the push button switch 28 in a pressed state (conduction state), and FIG. FIG. 8 is a cross-sectional view showing a state (conduction state) in which the push button switch 28 is hooked.

The push-button switch 28 is provided with a pressing member 81 mounted on a base 80 so as to be reciprocally displaceable in the arrow A1 direction and the opposite direction in FIG. 12, and the pressing member 81 is spring-biased in the arrow A1 direction by a coil spring 82. Has been done. When operating the push button switch 28,
As shown in FIG. 13, the pressing member 81 is pressed in the arrow B direction. The electrode provided on the flange portion 83 of the base 80 when pressed
84 and 85 are conducted by a conducting member 86 which is integrally formed with the pressing member 81. When the pressing is released, the spring force of the coil spring 82 causes the pressing member 81 to return to the state shown in FIG. However, during operation, if the pressing force is excessively strong, or if the pressing force is applied in the direction of arrow C in FIG. 13, the pressing member 81 moves to the first position as shown in FIG.
The switch 28 is caught even if it is not pressed against the operator's will because it is caught on the panel plate 87 at the point D in FIG.
May become conductive.

In the present embodiment, such a switching mode of the push button switch 28 is provided by the central control circuit 2 when the power switch SW1 is turned on.
One can detect and judge.

Effect According to the present invention, the plurality r of push button switches 28 connected to each of the plurality n of terminal devices 30 are brought into the first switching state (conduction state in the above-described embodiments) immediately after the power switch SW1 is turned on. It is detected for each push-button switch 28 of each terminal device 30. If the push-button switch 28 malfunctions and is in the first switching state, the display means 29 indicates the malfunctioning push-button switch 28. It is possible to display that the erroneous operation is performed, and thus prevent the erroneous operation in operation in advance, which improves convenience.

In particular, in the present invention, after the malfunction of the push button switch 28 immediately after the power is turned on, the push button switch 28 is detected.
Since the control signal is derived by the operation of, the display means 29 displays that due to the malfunction of the pushbutton switch 28, and the malfunctioning pushbutton switch 28 should be corrected so as not to malfunction. If so, it becomes possible to prevent malfunction of the loads 26 and 27.

Further, according to the present invention, the push button switch 28 which is malfunctioning is
The display means 29 is connected to the terminal device 30 to which the is connected and the malfunction of the push button switch 28 is detected by the same control block.
Since it can be displayed by the display means 29 included in B1 to Bn, there is also an effect that the malfunction of the push button switch 28 immediately after the power is turned on can be immediately known. This achieves the effect that it is possible to easily fix the malfunctioning pushbutton switch 28 and prevent the loads 26 and 27 from malfunctioning.

The display means 29 displays the operating states of the loads 26, 27 corresponding to the push button switches 28, and by this display means 29, malfunctions in the same control blocks B1 to Bn provided with the display means 29 are detected. It is possible to display the push-button switch 28 that is also present, and thus the configuration can be shared, and the configuration can be downsized and simplified.

[Brief description of drawings]

FIG. 1 is a block diagram of a dimmer 100 according to an embodiment of the present invention, FIG. 2 is a block diagram showing a specific configuration of the operation input circuit 23 and blinking circuit 25, and FIG. 3 is a dimmer circuit 24. A block diagram showing a specific configuration, FIG. 4 is an electric circuit diagram showing a specific configuration of the dimming drive circuit 36, and FIG. 5 is a diagram for explaining the operation of the dimming drive circuit 36 shown in FIG. Waveform diagram for
FIG. 8 is a block diagram showing the specific constitution of the dimming circuit 24a according to another embodiment of the present invention, FIG. 7 is an electric circuit diagram showing the concrete constitution of the dimming drive circuit 36a in FIG. 6, and FIG. The figure shows the seventh
FIG. 9 is a waveform diagram for explaining the operation of the dimming drive circuit 36a shown in the figure, FIG. 9 is a front view of the operation panel 68, and FIG. 10 is a simplified flow chart of the failure determination control of the central control circuit 21, FIG. 11 is a detailed flow chart of an embodiment of failure determination control of the central control circuit 21, FIG. 12 is a sectional view of the push button switch 28 in a non-pressed state, and FIG. 13 is a push button switch 28 is pressed. Cross-sectional view of the state, Figure 14 shows the push button switch 28
FIG. 4 is a cross-sectional view showing a state in which is hooked. 21 …… Central control circuit, 22 …… Signal line, 23 …… Operation input circuit, 24,24a …… Dimming circuit, 25 …… Blinking circuit, 26 …… Lighting load, 27 …… On / off load, 28 ...... Operation switch, 29
...... Display element, 30, 31, 34 ...... Terminal device, 35 ...... Memory control circuit, 36 ...... Dimming drive circuit, 37 ...... Input / output interface, 38 ...... Processing circuit, 39 ...... Memory, 40 …… Dimming control circuit, 46 …… Fader, 47 …… Analog / digital converter, 48 …… Digital / analog converter, SW1 …… Power switch, 100 …… Dimmer

Claims (1)

[Claims] (A) A central control circuit (21) and a terminal unit (30) provided in each of a plurality n of control blocks (B1 to Bn) are connected via a common signal line (22), and (b) each terminal. A push button switch 28 and a display means 29 are connected to the device 30. (c) The push button switch 28 applies a spring force to the base 80 in a predetermined direction A1 by a spring 82. A pressing member 81 is provided. The pressing member 81 is provided by inserting the panel plate 87, and the conducting member 86 provided on the pressing member 81 and the electrodes 84, 85 provided on the base 80 face each other. The conductive member 86 of the push-button switch 28 and the electrodes 84 and 85 are arranged so that the spring 82
The first switching state is brought about by the pressing operation of the pressing member 81 against the spring force of the above, and the second switching state is obtained when the pressing operation is not performed. (D) The signal line 22 also has a plurality of negative pressures. The operation control circuits 24 and 25 for controlling the operations of 26 and 27 are connected, and (e) the central control circuit 21 is energized by the turning-on operation of the power switch SW1 to change the switching state of the push button switch 28 to the terminal. From the device 30 via the signal line 22, and the load 26, 27 corresponding to the push-button switch 28 is derived a control signal so as to be operated by the operation control circuits 24, 25 via the signal line 22. A push button switch operation detecting device for giving the display means 29 the operation states of the loads 26, 27 corresponding to the push button switch 28. (f) The central control circuit 21 includes (f1) power switch SW1. Means to detect the closing of the power supply, and (f2) throwing the power switch SW1. Immediately after that, the means for detecting the switching states of all push button switches 28 connected to each terminal, and (f3) in response to the output of the switching state detecting means, the push button switches 28 are operated to make the first switching state. When it is malfunctioning, the control signal for the operation of the loads 26 and 27 is not output, and the pushbutton switch 28 in the first switching state due to the malfunction is connected to the terminal device 30 to which the pushbutton switch 28 is connected. By means of the display means 29, means for indicating that the push button switch 28 in the first switching state is malfunctioning, and (f4) all the push button switches 28 respond to the output of the switching state detecting means with the first means. When the switch is in the 2-switching state, the control signal is derived according to the first switching state by the push-button switch 28 thereafter. Ji motion detection device.