JP2638019B2 - Memory dimmer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a storage dimming device that is suitably implemented when dimming control of a plurality of lighting loads provided in a stage such as a theater or a hall, a studio, or the like. .

BACKGROUND ART A typical prior art is shown in FIG. In the storage dimming device 1 shown in FIG. 10, dimming control of a plurality of lighting loads 2 is performed. The storage dimming device 1 is provided with a memory 3 in which dimming data on a dimming level of the illumination load 2 corresponding to a scene to be produced (scene) is written in advance. The memory 3 supplies the dimming data of the scene corresponding to the given address signal to the execution scene buffer 7 through the changeover switch 6 based on the address signal given from the control unit 4 via the line 5. In the execution scene buffer 7, every time a write signal is supplied from the control unit 4 via the line 8, the dimming data supplied via the changeover switch 6 is taken into the inside.

The output of the execution scene buffer 7 is supplied to an output control unit 10 via a line 9. The output control unit 10 also includes an operation unit
Light control data is provided from 11 via a changeover switch 12. The operation unit 11 includes a preset feeder 13 and an analog / digital (hereinafter, referred to as A / D) converter 14, and an analog voltage level set and output in the preset feeder 13 (for example, 0 to 0). 10V) is converted into dimming data represented by a digital value and given to the changeover switch 12. The output control unit 10 selects the higher level of the dimming data from the dimming data supplied from the execution scene buffer 7 and the changeover switch 12 and selects a digital / analog (hereinafter referred to as D / A) converter 15. Give to. D / A
In the converter 15, the dimming data provided from the output control unit 10 is converted into an analog voltage level and provided to the dimmer 16.

The dimmer 16 includes, for example, a thyristor and a triac, and a plurality of lighting loads 2 are connected to the dimmer 16. D / A converter 1 in dimmer 16
The firing angles of the thyristor and the triac are controlled in accordance with the analog voltage level given from 5,
As a result, the duty control of the power for energizing the lighting load 2 is performed, and the dimming level of the lighting load 2 is controlled to a desired level.

With the configuration described above, the operation unit is operated by the changeover switch 12.
When the output 11 is connected to the output control unit 10, the dimming control by the output of the operation unit 11 can be performed together with the dimming control of the illumination load 2 by the dimming data held in the execution scene buffer 7.

The switching switch 12 includes switches 12a and 12b. The switch 12a is a switch that connects / disconnects the operation unit 11 and the output control unit 10, and the switch 12b is a switch that connects / disconnects the operation unit 11.
And a switch for connecting / disconnecting the line and the line 17. The switches 12a and 12b are linked, and when one of them is conducting, the other is shut off.

The line 17 is connected to the execution scene buffer 7 via the switching switch 6 and also to a coincidence detecting section 18 described later. As a result, when the switch 12b is turned on and the switch 6 is further switched to the line 17, the output of the operation unit 11 is supplied to the execution scene buffer 7, whereby the execution scene buffer 7 is held. The light control data can be corrected.

The match detector 18 further includes an execution scene buffer 7.
Is also given. The coincidence detecting section 18 compares the dimming data supplied from the operation section 11 via the line 17 with the dimming data supplied from the execution scene buffer 7 via the line 9. The output of the coincidence detecting section 18 is supplied to the switching switch 6 via a line 19 as a switching control signal. When the coincidence detecting section 18 detects a coincidence between the dimming data supplied from the operation section 11 and the dimming data supplied from the execution scene buffer 7, a set signal is derived on a line 19, whereby the switch 6 is switched. Is line 17
Side, and the output of the operation unit 11 is supplied to the execution scene buffer 7. When the coincidence detecting unit 18 does not detect coincidence between the two supplied dimming data, a reset signal is led out to the line 19, and at this time, the switching switch 6 is connected to the memory 3 side.

The switching switch 12 is operated by the operator and the switch is operated.
When 12b is turned on, the output of the operation unit 11 is led to the line 17. At this time, the switching switch 6 is connected to the memory 3 unless the dimming data output from the operation unit 11 matches the dimming data held by the execution scene buffer 7. Therefore, even if the switch 12b is turned on, the output of the operation unit 11 is not immediately supplied to the execution scene buffer 7.

When the output of the preset feeder 13 of the operation unit 11 matches the output of the execution scene buffer 7, the switch 6 is switched to the line 17 by the set signal supplied from the match detection unit 18. The operation unit
The output of 11 is supplied to the execution scene buffer 7. In this state, when a write signal is supplied to the execution scene buffer 7 from the control unit 4 via the line 8, the operation unit 11 outputs to the execution scene buffer 7. Is read. Thereafter, the dimming data derived from the execution scene buffer 7 to the line 9 coincides with the output of the operation unit 11, so that the switch 6 does not switch to the memory 3 side, whereby the contents of the execution scene buffer 7 are stored in the operation unit 11. It can be changed by operating the preset feeder 13.

In the switching switch 12, the switch 12a is turned on, so that the output of the operation section 11 is given to the output control section 10, and both the dimming data output from the operation section 11 and the dimming data held by the execution scene buffer 7 are provided. When the dimming control of the lighting load 2 is performed using the
When the level of the dimming data output by 11 is higher than the level of the dimming data derived from the execution scene buffer 7 to the line 9, the dimming level of the lighting load 2 corresponds to the dimming data output by the operation unit 11. Dimming level. When correcting the dimming data held by the execution scene buffer 7 from the state as described above, the switching switch 12
Although b must be made conductive, the switch 12a is shut off in this case, so that the output of the operation unit 11 is not supplied to the output control unit 10. In this case, the output controller
In step 10, the dimming data output from the execution scene buffer 7 is selected. However, for example, when there is a relatively large difference between the level of the dimming data output by the operation unit 11 before the switch 12a is shut off at the switching switch 12 and the level of the dimming data held by the execution scene buffer 7 In this case, the dimming level of the lighting load 2 suddenly decreases. Such a situation is not allowed, for example, on the stage, during the performance of the performance and during the rehearsal. Therefore, when the dimming control of the illumination load 2 is performed based on the output of the operation unit 11, the execution scene buffer 7 Cannot be modified.

FIG. 11 is a block diagram showing a general configuration of the storage dimmer 1 shown in FIG. In FIG. 1, the tenth
Components having functions equivalent to those shown in the drawings are denoted by the same reference numerals.

Generally, a large number of lighting loads 2 are used in a stage or a studio, and the dimming control of the lighting loads 2 is not performed for each lighting load, but for a plurality of preset feeders in the same control system. The dimming level is controlled for each lighting load group (hereinafter, referred to as a channel). Generally, a plurality of such channels are set, and accordingly, preset presets corresponding to the number of the channels are used. Accordingly, the operation unit 11 includes a preset feeder unit 13a having a plurality of preset feeders. That is, the configuration shown in FIG. 10 is a basic configuration for performing dimming control of one channel, and generally the configuration shown in FIG. 11 is used.

When a specific scene is selected by the control unit 4, the dimming data of the selected scene is sequentially read out from the memory 3 by an address signal given from the control unit 4 via a line 5, and the readout is performed. The adjusted light control data is transmitted to the control unit 4
Are sequentially written into the execution scene buffer 7 by a write signal applied to the execution scene buffer 7 via the line 8. At this time, the dimming data corresponding to the selected scene is sequentially stored in the execution scene buffer 7 for each one-channel dimming data.

The operation unit 11 includes an analog switch unit 20 including a plurality of analog switches between the A / D converter 14 and the plurality of preset feeders provided in the preset feeder unit 13a. The output of the preset feeder corresponding to each channel in the preset feeder section 13a is selectively input to the A / D converter 14. Also, the dimmers 16 are provided by the number of channels for performing dimming control.
A sample-and-hold circuit 21 is interposed between the A-converter 15 and the A-converter 15.

The sample and hold circuit 21 includes an analog switch unit 22 for selectively sampling an analog voltage level corresponding to each channel supplied from the output control unit 10 via the D / A converter 15, and a D / A conversion circuit. In order to hold the output of No. 15, a capacitor C0 provided for each of the plurality of analog switches constituting the plurality of analog switch units 22 is provided.
It is comprised including.

The address signal derived from the control unit 4 to the line 5 is a line signal.
The signals are also provided to analog switch units 20 and 22 via 23 and 24, respectively. That is, when one channel of dimming data is given from the memory 3 to the execution scene buffer 7,
In response to the selected one channel, one analog switch is turned on in each of the analog switch units 20 and 22, so that the output control unit 10 reads the one-channel dimming data read out to the execution scene buffer 7. Is compared with the output of the operation section 11 set by one preset feeder included in the preset feeder section 13a, and the higher level of the dimming data is selected from the two. It is provided to the D / A converter 15. In this way D / A
The dimming data supplied to the conversion circuit 15 is held in the corresponding capacitor C0 by the conduction of one analog switch in the analog switch section 22 corresponding to the channel selected by the address signal.

Accordingly, the control unit 4 selects a certain scene and sequentially selects a plurality of channels by an address signal, thereby controlling the dimming of the plurality of lighting loads 2 from the output of the operation unit 11 and the execution scene buffer 7. Can be performed based on

In the memory dimmer 1, when the contents held in the execution scene buffer 7 are to be corrected, the switch 12b of the changeover switch 12 is turned on. At this time, since the switch 12a is shut off in conjunction with the conduction of the switch 12b, the output control unit 1
0 means that the output of the execution scene buffer 7 is selected and output. For example, when the output control unit 10 selects and outputs the dimming data output from the operation unit 11, the dimming data set by the preset feeder unit 13a and
When there is a large difference between the dimming data held by the execution scene buffer 7 and the dimming data, the dimming levels of the plurality of lighting loads 2 constituting the channel to be corrected will be sharply reduced.

That is, when the output of the operation unit 11 is selected in the output control unit 10, the contents held in the execution scene buffer 7 cannot be corrected.

Purpose An object of the present invention is to provide an execution scene buffer which is storage means for storing dimming data set by the operation means even when dimming control is performed based on the output of the operation means. An object of the present invention is to provide a memory dimmer capable of changing the storage content of an arbitrary scene buffer.

Configuration of the Invention The present invention provides a lighting load 32, an operation means 41 for outputting dimming data of the lighting load by operation, a preset buffer 43 for holding dimming data, and a dimming operation of the operating means 41. First match detecting means 51 for comparing the data with the dimming data held in the preset buffer 43 and detecting a match; an execution scene buffer 37 for storing the dimming data; Optical data and execution scene buffer
A second coincidence detecting means 47 for comparing the dimming data provided as the other input from 37 and detecting a coincidence, and a dimming data from the operating means 41 are provided in a preset buffer.
A switching means 42 for deriving by switching to 43 and the one input of the second coincidence detecting means 47; a memory 33 for storing light control data; and a coincidence detected in response to an output of the second coincidence detecting means 47. When the switch is not in operation, the switch 33 supplies the dimming data in the memory 33 to the execution scene buffer 37, and when a match is detected, switches the dimming data from the switching means 42 to the execution scene buffer 37. By switching the dimming data of the means 41 from the second coincidence detecting means 47 to the preset buffer 43, the switching switch 36 switches the dimming data of the memory 33 to the execution scene buffer 37, and the switching means 42 In response to the output of the first match detecting means 51, when no match is detected, the dimming data of the operating means 41 is not supplied to the preset buffer 43, and when a match is detected, the light of the operating means 41 is adjusted. Optical data Output control means 40 for providing to the set buffer 43, and selecting and outputting the higher-level dimming data among the dimming data of the preset buffer 43 and the execution scene buffer 37; and And a means 45 for driving the illumination load 32 at the dimming level represented by the dimming data.

The present invention also provides a lighting load 32, operation means 41 for outputting dimming data of the lighting load by operation, preset buffer 43 for holding dimming data, and dimming data of the operating means 41. First match detecting means 51 for comparing the light control data held in the preset buffer 43 and detecting a match, a memory 33 for storing light control data, and storing light control data for the memory 33. An execution scene buffer 37, an optional scene buffer 112 for storing dimming data and storing the dimming data in the memory 33, one of the input dimming data, and an arbitrary scene buffer
A second coincidence detecting means 47 for comparing the dimming data provided as the other input from 112 and detecting coincidence.
The dimming data from the operating means 41 is stored in a preset buffer.
A switching means 42 for switching and deriving the signal 43 to the one input of the second coincidence detecting means 47; and a dimming data stored in the memory 33 in response to an output of the second coincidence detecting means 47 when no coincidence is detected. To the arbitrary scene buffer 112, and when a match is detected, a switch 36 for supplying the dimming data from the switching means 42 to the arbitrary scene buffer 112. By switching from the detecting means 47 to the preset buffer 43 side, the switching switch 36 switches the dimming data of the memory 33 to an arbitrary scene buffer 112, and the switching means 42 outputs to the output of the first coincidence detecting means 51. In response, when no match is detected, the dimming data of the operating means 41 is not given to the preset buffer 43, and when a match is detected, the dimming data of the operating means 41 is given to the preset buffer 43. ,further, Output control means 40 for selecting and outputting the higher-level dimming data among the dimming data of the preset buffer 43 and the execution scene buffer 37; and the dimming represented by the dimming data from the output control means 40. And a means 45 for driving the illumination load 32 at a light level.

Embodiment FIG. 1 is a block diagram showing a basic configuration of a storage dimmer 31 according to an embodiment of the present invention. Memory dimmer 31
In, dimming control of the plurality of lighting loads 32 is performed. The storage dimmer 31 is provided with a memory 33 that stores dimming data corresponding to a desired dimming level of the lighting load 32,
The dimming data stored in the memory 33 is read out by an address signal given from a control unit 34 via a line 35, and the read out dimming data is sent to an execution scene buffer 37 via a switching switch 36. Given. The execution scene buffer 37 is supplied with a write signal from the control unit 34 via a line 38. Each time the write signal is supplied, dimming data output from the memory 33 is written into the execution scene buffer 37. I will be rare. The storage means includes the memory 33 and the execution scene buffer 37.

The output of the execution scene buffer 37 is supplied to an output control unit 40 described later via a line 39. The output control unit 40 also receives dimming data output from an operation unit 41 including a preset feeder and the like from a line 44 via a switching unit 42 and a preset buffer 43 serving as holding means. Has been given. The output control unit 40 executes the execution scene buffer.
The dimming data output from 37 is compared with the dimming data supplied from the preset buffer 43, and the dimming data having a higher level is selected and supplied to the dimmer 45.

The dimmer 45 is connected to the plurality of lighting loads 32, and includes a thyristor, a triac, and the like therein. In the dimmer 45, the firing angles of the thyristor and the triac are changed based on the output of the output control unit 40, whereby the duty control of the load power applied to the lighting load 32 is performed. Thus, the lighting load 32
Is a desired dimming level.

The dimming data supplied from the operation unit 41 to the switching unit 42 is selected by the switching unit 42 and output to either the preset buffer 43 or the line 46. The dimming data derived on the line 46 is supplied to the execution scene buffer 37 via the switching switch 36 and also to the coincidence detecting section 47 described later. The output of the execution scene buffer 37 is also supplied to the coincidence detection section 47 from a line 39. The output of the coincidence detecting section 47 is supplied to the switching switch 36 as a switching control signal via a line 48. The switching switch 36 performs the switching operation based on the switching control signal supplied from the line 48.

The outputs of the preset buffer 43 and the operation unit 41 are supplied to the coincidence detection unit 51 via lines 49 and 50, respectively. The output of the coincidence detecting section 51 is supplied to the switching section 42 via a line 52 as a control signal. The switching unit 42 performs a switching operation based on this control signal as described later, and a coincidence detecting unit.
When it is detected at 51 that the light control data output from the preset buffer 43 matches the light control data output from the operation unit 41, the output of the operation unit 41 is given to the preset buffer 43, If they do not match, the preset buffer 43 is not provided with the dimming data output from the operation unit 41.

When the switching unit 42 is operated by the operator and the output of the operation unit 41 is selected to be led out to the line 46, the operation unit 41 is selected.
Is not supplied to the preset buffer 43. That is, in the preset buffer 43, the dimming data given from the operation unit 41 is held before the switching operation of the switching unit 42 is performed. By allowing the dimming data held in the preset buffer 43 to be supplied to the output control unit 40 via the line 44, the output of the preset buffer 43 is output from the output control unit 40. Even when the light is selected and provided to the dimmer 45, the dimming level of the illumination load 32 does not suddenly change due to the switching operation of the switching unit.

When the output of the operation unit 41 is selected to be led out to the line 46 in the switching unit 42, the light detection data output from the operation unit 41 is given to the coincidence detection unit 47. In the coincidence detecting section 47, the dimming data is compared with the dimming data output from the execution scene buffer 37, and the output of the execution scene buffer 37 and the operation section 41 are operated by operating a preset fader included in the operation section 41. , The control signal of, for example, a high level is output to the line 48.
As a result, the switching switch 36 is switched to the line 46 side. Thereafter, the dimming control output from the operation unit 41 is applied to the execution scene buffer 37 every time a write signal is supplied from the control unit 34 via the line 38. The data will be read. In this manner, the dimming data held by the execution scene buffer 37 can be corrected.

When the correction of the dimming data of the execution scene buffer 37 is completed, the switching section 42 is operated by the operator, and the switching switch 36 is switched to the memory 33 side in synchronization with this. At this time, the output of the operation unit 41 is not immediately supplied to the preset buffer 43. That is, by operating the preset fader of the operation unit 41, the dimming data output by the preset buffer 43 matches the dimming data output by the operation unit 41,
When this is detected by the coincidence detecting section 51, the coincidence detecting section 51 is controlled by a switching control signal derived on a line 52, and a switching means (not shown) included in the switching section 42 is turned on. As a result, the output of the operation unit 41 is provided to the preset buffer 43. Therefore, when the dimming level of the illumination load 32 is to be controlled by operating the operation unit 41 after the content held in the execution scene buffer 37 is corrected, the dimming data output from the operation unit 41 is preset. After the dimming data held by the buffer 43 has become equal, the output of the operation unit 41 is given to the preset buffer 43, so that the dimming level of the illumination load 32 does not suddenly change.

Thus, the preset buffer 43 is output by the output control unit 40.
Is output to the dimmer 45, the contents held in the execution scene buffer 37 can be corrected.

FIG. 2 is a block diagram showing a general configuration of the storage dimmer 31 shown in FIG. In FIG. 2, components having the same functions as those shown in FIG. 1 are denoted by the same reference numerals. The operation unit 41 includes a preset feeder unit 55 including a plurality of preset feeders. In general, the plurality of lighting loads 32 do not perform dimming control for each lighting load, but use a preset feeder unit 55.
The dimming control is performed for each of a plurality of illumination load groups (hereinafter, referred to as channels) which have the same control system for each preset feeder.

The preset feeder value corresponding to each of such channels is selected from a preset feeder unit 55 in an analog switch unit 56 including a plurality of analog switches provided for each channel. The signal is supplied to a digital (A / D) converter 57 and converted into a digital signal. The operation unit 4 including the preset feeder unit 55, the analog switch unit 56, and the A / D converter 57.
1 is configured.

A plurality of dimmers 45 are provided for the above-described channels, and the output of the output control unit 40 is given to each dimmer. The output control unit 40 outputs the dimming data for each channel as a digital signal, and this digital signal is supplied to a digital / analog (hereinafter, referred to as D / A) converter 58. D
The output of the / A converter 58 is provided to an analog switch unit 59 including a plurality of analog switches provided for each channel. The output of the analog switch 59 is provided to each of the plurality of dimmers 45. A capacitor C1 is connected between each of the lines connecting the plurality of analog switches constituting the analog switch unit 59 and the dimmer 45 to the ground. A sample-and-hold circuit 60 is configured to include the analog switch section 59 and the capacitor C1, and each of the plurality of analog switches included in the analog switch section 59 is selectively turned on as described later. Electric charges corresponding to the dimming level of each channel are stored in the capacitor C1.

The selection of an analog switch to be made conductive in the analog switch units 56 and 59 is performed by an address signal supplied from the control unit 34 via lines 61 and 62. When a scene is selected as one to be produced by the control unit 34, the control unit 34 derives an address signal on the line 35 so as to sequentially select each channel. This allows the memory
From 33, the dimming data corresponding to each channel of the selected scene is sequentially read, and the analog switch section
The analog switches 56 and 59 corresponding to the respective channels are sequentially selected and turned on. As a result, the switching switch 36
Is connected to the memory 33 side, the execution scene buffer 37 reads dimming data corresponding to each channel sequentially every time a write signal is given from the control unit 34 via the line 38. go. Preset buffer
In 43, each time a write signal is supplied from the control unit 34 via the line 38 and the line 63, the preset feeder unit
The dimming data set by the preset feeder corresponding to each of the 55 channels is sequentially read.

In the output control unit 40, the output of the execution scene buffer 37 and the output of the preset buffer 43 are compared, and the higher-level light control data is selected, and the D / A converter 5
Given to 8. In the analog switch section 59, the analog switch corresponding to the selected channel is also turned on, so that after all the channels are sequentially selected, all the channels of the selected scene are stored in the sample and hold circuit 60. The analog voltage level corresponding to the dimming data is sampled.

Since the dimming data sampled by the sampling circuit 60 is the higher of the output of the operation unit 41 and the output of the execution scene buffer 37 for each channel, the dimming control of the lighting load 32 is performed. Operation unit 41 and memory
33 is performed using both the dimming data output.

As described with reference to FIG.
The dimming data output by the controller is given. This dimming data is a preset buffer for normal dimming control.
Has been given to. In the preset buffer 43, the control unit
Each time a write signal is applied from 34 via line 38 and line 63, the dimming data provided from switching section 42 is read into its contents. As a result, the operation section 41 is output to the output control section 40.
Can output dimming data.

When the correction of the contents held in the execution scene buffer 37 is supported by the operator, the dimming data supplied to the operation unit 41 is led out to the line 46 in the switching unit 42, and at the same time, the preset buffer 43 No light control data is given. At this time, the dimming data held by the preset buffer 43 is the dimming data read before the switching operation in the switching section 42 is performed. Therefore, even when the dimming data output from the preset buffer 43 is selected in the output control unit 40 and input to the D / A converter 58, the illumination load is controlled by the switching operation of the switching unit 42. The 32 dimming levels do not change abruptly.

The light control data derived on the line 46 is provided to the coincidence detection unit 47. When the dimming data output from the execution scene buffer 37 matches the dimming data supplied from the line 46, the coincidence detecting section 47 derives a high-level switching control signal to the line 48, for example. As a result, the switching switch 36
Is switched to the line 46 side. Thus, the switching switch
When the line 36 is switched to the line 46 side, the dimming data held by the execution scene buffer 37 can be corrected by operating the preset feeder unit 55 of the operation unit 41.

When the correction of the dimming data held by the execution scene buffer 37 is completed, the switching unit 42 is switched by the operator, whereby the dimming data from the operation unit 41 is not derived to the line 46. At this time, the reset signal is supplied from the switching section 42 to the coincidence detecting section 47 via the line 64, whereby the coincidence detecting section 47 inverts the control signal derived from the line 48 from a high level to a low level. As a result, the switching switch 36 is switched to the memory 33 side.

Even after the switching operation of the switching unit 42 as described above, the dimming data output from the operation unit 41 is not immediately supplied to the preset buffer 43. That is, when the coincidence detecting unit 51 detects a match between the dimming data output from the preset buffer 43 and the dimming data output from the operation unit 41,
The operation unit 41 and the preset buffer 43 are connected by a switching operation of a switching unit (not shown) of the switching unit 42. By doing so, the output of the preset buffer 43 does not change abruptly, and therefore the lighting load 32
Dimming level does not change abruptly.

As described above, in any case, since the dimming level of the lighting load 32 does not change abruptly, it is necessary to correct the dimming data held by the execution scene buffer 37 even during the performance of the performance on the stage or during the rehearsal. Will be able to do it.

FIG. 3 is a block diagram showing a basic configuration of a part of the control unit 34 related to reading of light control data stored in the memory 33. In the memory 33 of FIG. 2, for example, N sets of dimming data for realizing N different dimming modes are stored, and scene numbers 1 to N are assigned to the N sets of dimming data, respectively. ing.

The control unit 34 first selects a specific one of the N scenes. To select such a scene, the control unit 34 is provided with scene setting switches SW1 to SWN. In each of the scene setting switches SW1 to SWN, one terminal is grounded, and the other terminal is supplied with a voltage + B via resistors r1 to rN, respectively. By supplying the potential appearing at the other terminal to the memory 33 via the lines l1 to lN,
In the memory 33, any one of the scene setting switches SW1 to SWN
Thus, the dimming data of the scene selected according to the above is output. That is, although the signals derived to the lines l1 to 1N are at the high level or the low level, for example, when the scene setting switch SWk is turned on, the signal derived to the line lk is at the low level, whereby, for example, The scene number to be selected is determined depending on whether the signal derived to the line is at a low level.

The controller 34 further sequentially reads out the dimming data corresponding to the dimming level of each channel included in the dimming data of each scene from the memory 33, and reads one of the analog switch units 56 and 59 corresponding to each channel. A counter 70 for generating an address signal for deriving an analog switch is provided. The clock signal is input to the counter 70 from a clock generation circuit 71 to a clock input terminal CK.

The counter 70 is, for example, a 7-bit counter.
It has output terminals b0 to b6. It is also assumed that the output terminal b0 is the least significant bit, the output terminal b6 is the most significant bit, and the output terminal b0 corresponds to the upper bit in order from the output terminal b0 to the output terminal b6.

In the counter 70, a 5-bit signal output to the output terminals b2 to b6 is used as, for example, an address signal for designating a channel. Through the memory
33 and analog switch sections 56 and 59. Therefore, in such a configuration, designation of up to 32 channels is possible.

The signals derived from the lower two bits of the output terminals b0 and b1 of the counter 70 are used to generate a write signal to be supplied to the execution scene buffer 37. Output terminal b0 is AND circuit 7
The output terminal b1 is connected to the input terminal 72b of the AND circuit 72 via the inverting circuit 73. The output of the AND circuit 72 is supplied to the execution scene buffer 37 as a write signal.

When the signals led to the output terminals b0 and b1 are at high level and low level, respectively, the input terminal 72 of the AND circuit 72
A high level signal is supplied to both a and 72b, and at this time, the AND circuit 72 derives a high level signal to its output terminal 72c. In synchronization with the rise of the output signal of the AND circuit 72, the dimming data output from the memory 33 is read in the execution scene buffer 37. Output terminal b
Since the signals derived to 0 and b1 become high level and low level every four clocks, the execution scene buffer 37 reads the light control data from the memory 33 every four clocks.

When the signals output to the output terminals b0 and b1 in the counter 70 are both at a low level, the binary data represented by the 5-bit signals output to the output terminals b2 to b6 in synchronism therewith is output. Change. Since the signals output to the output terminals b0 and b1 both become low level every four clocks, the address signal given from the control unit 34 to the memory 33 and the analog switch units 56 and 59 is output every four clocks. Will be changed to The timing at which the output of the AND circuit 72 changes from low level to high level,
Since the timing at which the address signal derived from L2 to L6 changes alternately occurs every two clocks, the execution scene buffer 37 can sequentially read the dimming data for each channel into the execution scene buffer 37.

FIG. 4 is a block diagram showing another configuration example including a configuration relating to writing of dimming data to the memory 33 of the control unit 34. The operation section 41 includes the preset feeder section 55 described above.
In addition, a storage preset feeder unit 80 including a plurality of preset feeders is provided. An analog switch section 81 including a plurality of analog switches is provided in association with the channels corresponding to the respective preset feeders of the storage preset feeder section 80, and the analog switch sections are provided. The analog voltage level set by each preset feeder of the storage preset feeder unit 80 is changed by the A / D converter by selectively conducting a plurality of analog switches constituting the 81. Entered in 83.

The output of the A / D converter 83 is provided to a data line 84. The control unit 34 includes a scene setting unit 85 including a plurality of scene setting switches, and a CPU (Central Processing Unit).
t) 86, and an input / output control unit 82 for controlling input / output between the scene setting unit 85 and the data line 84, the address line 87, and the like.

When one scene in which the scene setting unit 85 is operated is selected, the corresponding output of the scene setting unit 85 is output to the input / output control unit.
The input / output control unit 82 sequentially selects a plurality of scene setting switches included in the scene setting unit 85 based on an address signal given from the CPU 86 via the address line 87, In synchronism with the write signal supplied through the line 88, the state of the scene setting switch designated by the address signal is read, and the data corresponding to the state of each scene setting switch is transferred to the data line 84 via the line 89. Give to. In this way CPU86
Can recognize which of the plurality of scene setting switches has been operated. Thus, a scene number is selected.

Based on the selected scene number, the CPU 86 addresses the storage area of the memory 33 corresponding to the selected scene number via the address line 87.
In the analog switch section 81, each analog switch is sequentially turned on by an address signal supplied from an address line 87. As a result, the dimming data set by the fader included in the storage preset fader section 80 is given to the memory 33 via the data line 84,
In the storage area of the memory 33 corresponding to the scene number, the address is selected in order, and the adjustment set in the storage preset feeder section 80 by applying a write signal via a line 88. Optical data is memory
33 will be sequentially written.

To read the dimming data stored in the memory 33 into the execution scene buffer 37 as described above, the execution scene buffer 37 is selected by the address signal derived from the CPU 86 to the address line 87, and thereafter, the read operation is performed via the line 88. This is performed by applying a write signal.

As the storage preset feeder unit 80 described above, the second
The preset fader unit 55 shown in the figure may be used to switch between inputting and reproducing light control data. Further, the writing of the dimming data into the memory 33 does not necessarily have to be performed using a preset fader, but may be performed using, for example, a key input device.

FIG. 5 is a block diagram showing a basic configuration of the switching unit 42. The switching section 42 is provided with a switching switch 90, and the switching switch 90 includes switches s1 and s2. One terminal of the switch s1 is connected to the operation unit 41, and the other terminal is connected to a match detection unit 47 via a line 46.
It is connected to the. One terminal of the switch s2 is grounded, and the other terminal is supplied with a voltage + B via a resistor R. The other terminal of the switch s2 is further connected to a reset terminal R1 of a set-up flip-flop (hereinafter referred to as a flip-flop) 91 and also to a line 64 via an inverting circuit 92. A switching control signal from the coincidence detecting section 51 is supplied to a set input terminal S1 of the flip-flop 91.

The output signal of the flip-flop 91 is supplied to the switch 93 as a switching control signal. The switch 93 conducts / cuts off the connection between the operation unit 41 and the preset buffer 43.

In the normal state, the switch s
1 and s2 are both shut off, and the signal output from the output terminal Q1 of the flip-flop 91 is at a high level from this time. At this time, the switch 93 is conductive, and the output of the operation unit 41 is supplied to the preset buffer 43. When the switches s1 and s2 of the switching switch 90 are turned on in the switching section 42 by the operation of the operator, the signal input to the reset input terminal R1 of the flip-flop 91 due to the conduction of the switch s2 is changed from a high level to a low level. Invert to level. In synchronization with this, the signal which the flip-flop 91 leads to its output terminal Q1 is inverted from a high level to a low level, whereby the switch 93 is cut off. The signal derived from the inverting circuit 92 on the line 64 is inverted from low level to high level. When the switch s1 is turned on, a line is
The output of the operation unit 41 is provided via 46.

Although the output of the operation unit 41 is not given to the preset buffer 43 due to the interruption of the switch 93, the preset buffer 43 receives the output from the operation unit 41 before the switching switch 90 is operated inside the preset buffer 43. Light control data is held.

From such a state, the preset feeder section of the operation section 41
After adjusting the dimming data held by the execution scene buffer 37 by operating the switch 55, the switch s1 and s2 of the switch 90 are cut off by the operator. As a result, the signal applied to the reset input terminal R1 of the flip-flop 91 becomes
Although flipped from low level to high level, the flip-flop 91 responds at the rising edge of the input signal, and therefore does not respond to the above-described signal level change of the signal input to the reset input terminal R1. At this time, the signal led out to the line 64 is inverted from the high level to the low level.

After the switches s1 and s2 are cut off at the switching switch 90, the dimming data output from the operation unit 41 and the preset buffer 43 are held by operating the preset feeder unit 51 of the operation unit 41. When the light control data coincides with the light control data, a set signal is supplied from the coincidence detecting unit 51 to the set input terminal S1 of the flip-flop 91 via the line 52. As a result, the signal output to the output terminal Q1 of the flip-flop 91 is inverted from the low level to the high level, and the switch 93 is turned on.

FIG. 6 is a block diagram showing a basic configuration of the coincidence detecting section 47. The coincidence detecting section 47 includes a comparator (digital comparator) 95 and a flip-flop 96. The dimming data derived from the execution scene buffer 37 to the line 39 is input to one input terminal 95a of the comparator 95, and the line 46 is connected to the other input terminal 95b. When the digital values of the dimming data supplied to the input terminals 95a and 95b match, the comparator 95 outputs the output terminal 95c.
For example, a detection pulse that falls to a high level for a certain period is derived.

The output terminal 95c is a set input terminal S of the flip-flop 96.
2 and the comparator 95 in the flip-flop 96
In synchronization with the falling edge of the detection pulse given from, the signal derived from the output terminal Q2 is inverted from low level to high level. The output terminal Q2 is connected to the line 48. Accordingly, when the output signal of the flip-flop 96 is inverted from a low level to a high level, the switching switch 36 is switched to the line 46 side.

The reset input terminal R2 of the flip-flop 96 is connected to line 64.
It is connected to the. The flip-flop 96 has its output terminal synchronized with the falling edge of the signal supplied from the line 64.
The signal derived from Q2 is inverted from high level to low level. When the switches s1 and s2 included in the switching switch 90 of the switching unit 42 are cut off, the signal led out to the line 64 is inverted to a high level or a low level, so that the dimming data held by the execution scene buffer 37 is When the correction is completed and the switches s1 and s2 of the switching switch 90 are cut off by the operator, the output signal of the flip-flop 96 is inverted from the high level to the low level. When the output signal of the flip-flop 96 is inverted from the high level to the low level, the switch 36 is switched to the memory 33 side.

FIG. 7 is a block diagram showing a basic configuration of the coincidence detecting section 51. The coincidence detecting section 51 includes a comparator (digital comparator) 97, and the output of the preset buffer 43 is given to an input terminal 97a through a line 49. The output of the operation unit 41 is provided to the input terminal 97b via the line 50. When the digital values of the dimming data applied to the input terminals 97a and 97b match, the comparator 97 derives a detection pulse that falls to a high level for a certain period, for example, at its output terminal 97c. Such a detection pulse is applied to the flip-flop 91 of the switching section 42 and the set input terminal S1 via the line 52.

FIG. 8 is a block diagram showing a basic configuration of the output control unit 40. The output control section 40 is provided with a comparator (digital comparator) 98. The dimming data output from the preset buffer 43 is supplied to the D / A converter 58 via the line 44 and the switch 99, and the execution scene buffer 3
The dimming data output from 7 is supplied to a D / A converter 58 via a line 39 and a switch 100. Said switch 99,
100 is turned on / off by a control signal from comparator 98 via lines 101 and 102, respectively. The line 44 is connected to one input terminal 98a of the comparator 98, and the line 39 is connected to the other input terminal 98b of the comparator 98. Output terminals 98c and 98d of the comparator 98 are connected to lines 101 and 102, respectively.

The comparator 98 compares the digital values of the dimming data supplied from the input terminals 98a and 98b, and the level of the dimming data supplied to the input terminal 98a is larger than the level of the dimming data supplied to the input terminal 98b. In such a case, a high-level signal is derived from the output terminal 98c, and a low-level signal is output to the output terminal 98d. The switch 99
Is conducted, and the switch 100 is shut off. In this manner, the dimming data output from the preset feeder 43 is supplied to the D / A converter 58.

When the level of dimming data applied to the input terminal 98b is higher than the level of dimming data applied to the input terminal 98a, a high-level signal is derived from the output terminal 98d, and a low-level signal is output to the output terminal 98c. A signal is derived.
Therefore, in this case, the switch 99 is turned off and the switch 100 is turned on. The execution scene buffer 3
The dimming data output from 7 is supplied to the D / A converter 58.

As described above, according to this embodiment, when the output of the operation unit 41 is switched to the line 46 to correct the dimming data held in the execution scene buffer 37, the switching operation before the switching operation in the switching unit 42 is performed. The output of the operation unit 41 is held in the preset buffer 43. Thus, for example, the output control unit
Even when the dimming data given to the D / A converter 58 at 40 is selected as the dimming data output from the preset buffer 43, the dimming level of the lighting load 32 is executed without a sudden change. The dimming data held by the scene buffer 37 can be corrected.

FIG. 9 shows a storage dimmer 11 according to another embodiment of the present invention.
1 is a block diagram showing a basic configuration of FIG. The storage dimmer 111 is similar to the storage dimmer 31 of the first embodiment described above, and the portions having the same functions will be described with the same reference numerals. In the storage dimmer 111, dimming data supplied from the operation unit 41 to the output control unit 40 via the preset buffer 43, and dimming data supplied from the memory 33 to the output control unit 40 via the execution scene buffer 37 During the period in which dimming control of the plurality of lighting loads 32 is performed by using, the dimming data of an arbitrary scene stored in the memory 33 can be changed.

The storage dimmer 111 is provided with an optional scene buffer 112. In the present embodiment, the contents held in the execution scene buffer 37 are not modified, and therefore, the dimming data output from the memory 33 is output every time a write signal is supplied from the control unit 34 to the execution scene buffer 37 via the line 113. Then, the dimming data output from the memory 33 is read therein. In this embodiment, the storage means is configured to include the memory 33, the execution scene buffer 37, and the optional scene buffer 112.

The write signal derived on line 113 is also provided to preset buffer 43 and optional scene buffer 112. The control unit 34 first derives an address signal on a line 113, thereby setting a preset buffer 43 and an execution scene buffer 37.
And one of the arbitrary scene buffers 112 is selected, and thereafter, a write signal is applied to the buffer selected by the address signal. That is, the preset buffer 43, the execution scene buffer 37, and the arbitrary scene buffer 112 are respectively assigned addresses, and the control unit 34
By transmitting the above-mentioned address signal prior to the output of the write signal, the write signal can be selectively applied to any one of the buffers.

The dimming data output from the memory 33 is the execution scene buffer.
It is also provided to the optional scene buffer 112 via the switching switch 36. Optional scene buffer 1
In 12, every time a write signal is given from the control unit 34,
The dimming data output from the memory 33 is read therein. The output of the optional scene buffer 112 is provided to the coincidence detecting section 47 and the memory 33 via a line 114. The output of the coincidence detecting section 47 is supplied to the switching switch 36 via a line 115 to control the switching operation of the switching switch 36, and is also supplied to the memory 33 as a write signal.

When the dimming data of the scene to be corrected is specified by the configuration (not shown) of the operation unit 41, the memory 33 outputs the dimming data of the set scene. A write signal is applied to arbitrary scene buffer 112. As a result, the dimming data of the scene to be corrected is given to the arbitrary scene buffer 112. Thereafter, the dimming data output from the operating unit 41 is derived to the line 46 by operating the switching unit 42, and the coincidence detecting unit 47 detects coincidence between the output of the arbitrary scene buffer 112 and the dimming data given from the line 46. Then, the switch
36 is switched to the line 46 side. As a result, the dimming data corresponding to the scene to be corrected, which has been read into the arbitrary scene buffer 112, is corrected by operating the operation unit 41.

In such a state, the output of the arbitrary scene buffer 112 always coincides with the dimming data derived on the line 46. Therefore, a write signal is supplied from the coincidence detecting section 47 to the memory 33 via the line 115. The dimming data output from the arbitrary scene buffer 112 is written in the memory area of the memory 33 where the dimming data of the scene number corresponding to the scene to be corrected is stored.

As described above, according to the present embodiment, the dimming data stored in the memory 33 can be corrected even when dimming control of the illumination load 32 is performed. The memory dimmer 111 also corrects the dimming data held by the execution scene buffer 37 by reading the same dimming data as the dimming data read into the execution scene buffer 37 into the arbitrary scene buffer 112. Can be.

Effect The present invention of Claim 1 is based on the above-described FIGS.
In correspondence with the embodiment of FIG. 8, the dimming data held in the preset buffer 43 can be held by the operating means 41, and the dimming data from the preset buffer 43 is output controlled. When the lighting load 32 is being driven by applying the light to the means 40, the dimming data of the operating means 41 is switched by the action of the switching means 42 via the switching switch 36 to the execution scene buffer 37.
To correct the dimming data of the execution scene buffer 37. First and second coincidence detecting means 51, 4
7 and the operation of the output control means 40, it is possible to correct the dimming level of the lighting load 32 without abrupt change, and to correct the dimming data of the execution scene buffer 37 even after the correction. 1 coincidence detecting means 51 and switching means
Due to the function of 42, the light control data held in the preset buffer 43 is prevented from suddenly changing. Thus, operability is improved.

The present invention according to claim 2 corresponds to the embodiment of FIG. 9 described above, wherein the dimming data stored in the arbitrary scene buffer 112 is controlled during the dimming control similarly to the first invention.
Can be modified. Furthermore, the dimming data stored in the memory 33 can be corrected. Further, the same dimming data as the dimming data of the memory 33 read into the execution scene buffer 37 can be read into the arbitrary scene buffer 112, and the dimming data to be stored in the execution scene buffer 37 can be corrected.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the basic configuration of a storage dimmer 31 according to one embodiment of the present invention, and FIG. 2 is a block diagram showing the storage dimmer.
FIG. 3 is a block diagram showing a general configuration of the control unit 31. FIG.
FIG. 4 is a block diagram showing a basic configuration relating to reading of dimming data, FIG. 4 is a block diagram showing another configuration example including a configuration relating to writing of dimming data of the control unit 34, and FIG. FIG. 6 is a block diagram showing a basic configuration of the coincidence detecting section 47, FIG. 7 is a block diagram showing a basic configuration of the coincidence detecting section 51, and FIG. FIG. 9 is a block diagram showing a basic configuration of a control unit 40, FIG. 9 is a block diagram showing a basic configuration of a memory dimmer 111 according to another embodiment of the present invention, and FIG. FIG. 11 is a block diagram showing a basic configuration of the optical device 1, and FIG. 11 is a block diagram showing a general configuration of the storage dimmer 1. 31,111: memory dimmer, 32: lighting load, 33: memory, 34: control unit, 37: execution scene buffer, 40:
Output control unit, 41: Operation unit, 42: Switching unit, 43: Preset buffer, 112: Arbitrary scene buffer

Claims (2)

(57) [Claims] 1. An illumination load 32, an operation means 41 for outputting dimming data of the illumination load by operation, a preset buffer 43 for holding dimming data, and a dimming data of the operation means 41. First match detecting means 51 for comparing the light control data held in the preset buffer 43 and detecting a match, an execution scene buffer 37 for storing the light control data, and one of the input light control data And the execution scene buffer 37
A second coincidence detecting means 47 for comparing the dimming data provided as the other input with the other input and detecting a coincidence, and a dimming data from the operating means 41 as a preset buffer 43.
Switching means 42 for deriving by switching to the one of the inputs of the second match detecting means 47, a memory 33 for storing dimming data, and a match detected in response to the output of the second match detecting means 47. A switch switch 36 for supplying dimming data of the memory 33 to the execution scene buffer 37 when no match is detected, and providing a dimming data from the switching means 42 to the execution scene buffer 37 when a match is detected. By switching the dimming data 41 from the second coincidence detecting means 47 to the preset buffer 43, the switching switch 36 switches the dimming data in the memory 33 to the execution scene buffer 37, and the switching means 42 In response to the output of the first coincidence detecting means 51, when no coincidence is detected, the dimming data of the operating means 41 is not supplied to the preset buffer 43. When a coincidence is detected, the dimming of the operating means 41 is performed. Pre-data Output control means 40 for providing to the buffer 43, and selecting and outputting the higher-level light control data among the light control data of the preset buffer 43 and the execution scene buffer 37; and Means 45 for driving the illumination load 32 at the dimming level represented by the dimming data. 2. An illumination load 32, an operation means 41 for outputting dimming data of the illumination load by an operation, a preset buffer 43 for holding dimming data, and a dimming data of the operation means 41. First match detecting means 51 for comparing the light control data held in the preset buffer 43 and detecting a match, a memory 33 for storing light control data, and storing light control data for the memory 33. Execution scene buffer
37, an optional scene buffer 112 for storing the dimming data and storing the dimming data in the memory 33, and one of the input dimming data and the optional scene buffer 11
A second coincidence detecting means 47 for comparing the dimming data supplied as the other input from 2 and detecting a coincidence, and dimming data from the operating means 41 to a preset buffer 43
A switching means 42 for switching to and outputting to the one input of the second coincidence detecting means 47; and responding to an output of the second coincidence detecting means 47, when no coincidence is detected, the dimming data of the memory 33 is outputted. A switching switch 36 for supplying the dimming data from the switching means 42 to the arbitrary scene buffer 112 when the coincidence is detected. The switching means 42 detects the dimming data of the operating means 41 for the second coincidence. By switching from the means 47 to the preset buffer 43 side, the switching switch 36 switches the dimming data of the memory 33 to the arbitrary scene buffer 112, and the switching means 42 responds to the output of the first coincidence detecting means 51. When no match is detected, the dimming data of the operating means 41 is not provided to the preset buffer 43.When a match is detected, the dimming data of the operating means 41 is provided to the preset buffer 43. Furthermore, Among the dimming data of the reset buffer 43 and the execution scene buffer 37, an output control means 40 for selecting and outputting the higher-level dimming data, and a dimming level represented by the dimming data from the output control means 40. And a means 45 for driving the illumination load 32.