JPH0381992A - dimming control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dimming control device for stages and studios.

Conventional technology dimming control devices are capable of realizing dimming levels of a plurality of lighting loads set by operation means such as a numeric keypad or preset fader, and of realizing a scene (which is a set of a plurality of dimming levels).
It is a device that realizes transitions (hereinafter referred to as "scenes"), and is used to improve production effects on stages, studios, etc.

Conventionally, in such a dimming control device, for example, the maximum value of the dimming level of the lighting load is stored in a memory for each scene, and the dimming is adjusted over time according to a predetermined calculation formula based on this maximum value. The level is calculated and the phase angle of the lighting load is controlled so that the brightness corresponds to this dimming level.

Problems to be Solved by the Invention In the above-described dimming control, the change in the dimming level from the start to the end of the dimming control is always constant.

An object of the present invention is to provide a dimming control device that can realize changes in various dimming levels over time.

Means for Solving the Problems The present invention includes: an operation switch; a storage means for storing a maximum value of a dimming level; and when the operation switch is operated, the maximum value is determined in advance based on the maximum value as time passes a calculation means that calculates and outputs a dimming level according to an arithmetic expression and independently performs the calculation each time the operation switch is operated; and a maximum value of the dimming levels is selected based on the output of the calculation means. This is a dimming control device characterized by comprising: a dimming level selection means for outputting a dimming level selection signal; and a driving means for driving a lighting load based on the output of the dimming level selection signal.

According to the present invention, when the operation switch is operated, the maximum value of the dimming level stored in the storage means is read out. The calculation means calculates the dimming level according to a predetermined calculation formula over time based on the maximum value read from the storage means. When the operating switch is operated multiple times, the calculation is performed independently each time the operating switch is operated. The dimming level selection means selects the maximum value of the dimming levels from the calculation means and outputs it to the driving means, and the driving means drives the lighting load based on the output of the dimming level selection means.

Therefore, when the operation switch is operated multiple times, multiple types of dimming levels are calculated by the calculation means, and the lighting load is driven by the maximum value of these dimming levels, so the dimming level is determined according to a predetermined calculation formula. can be changed.

Further, by changing the timing of operating the operation switch, various changes in the dimming level can be realized.

Embodiment FIG. 1 is a block diagram showing the configuration of a dimming control device which is an embodiment of the present invention. The dimming level signal 4 set by the dimming operation unit 1 is given to the dimmer 2, which is a driving means, and here, each lighting load 3 is controlled by power control such as phase control.
Performs dimming control.

FIG. 2 is a block diagram showing the configuration of the dimming operation section 1. As shown in FIG. The dimming operation section 1 includes a display section 5, an operation section 6, a storage section 7 which is a storage means, a main control section 8, a dimming level calculation section 9 which is a calculation means and a dimming level selection means, and a signal output section 1.
0 and are connected to each other via a data bus 16. By operating the operating section 6, the main control section 8 outputs the dimming data stored in the storage section 7 in advance to the dimming level calculation section 9, and a dimming level signal is created. The dimming level signal 4 is given to the dimmer 2 via the signal output section IO. At this time, the display section 5 displays, for example, the scene number currently being played.

The storage unit 7 is provided with memories Ml and M2.

The memory M1 stores data related to dimming control set by the cross reproducing unit 12, which will be described later, and the memory M2
Data related to dimming control set by the submaster reproducing unit 13, which will be described later, is stored in .

FIG. 3 is a plan view showing a simplified configuration of the operating section 6. As shown in FIG. The setting section 11 is provided with a numeric keypad, a level wheel, a mode switching key, and the like. The cross reproduction unit 12 is
Cross-fade is performed based on the dimming data stored in the memory M1 of the storage unit 7.

In addition to this cross playback section 12, a submaster playback section 13
is added. The submaster playback section 13 is composed of a mask fader 14 and a piano switch 15 which is an operation switch. One submask playback section is composed of a master fader and a corresponding piano switch.

Each sub-mask reproducing unit 13 is associated with a lighting load.

This submaster reproducing unit 13 performs dimming control based on the data stored in the memory M2 of the storage unit 7. The light level is compared with the dimming level determined by the cross reproduction section 12, and the highest dimming level is output.

The sub-master playback unit 13 can be used for setting operations such as operating the master kneader 14 to set the dimming level and storing that dimming level as one scene, and for use in lectures, for example. When controlling a lighting load whose dimming level does not change much over time, such as a lighting load, or when controlling a lighting load such as a piano switch 15 (
When this piano switch 15 is pressed, the master fader 14
(the level is set to 100%) is used to perform effects such as controlling lighting loads to blink.

Conventionally, the submaster playback section 13 was often used to control lighting loads that did not change the dimming level much, and effects were realized by a playback means dedicated to effects, but recently, the submaster playback section 13
are also increasingly being used to create effects. Therefore, when the piano switch 15 is pressed, instead of simply setting the level of the master fader 14 to 100%, it may be possible to create a fade or change the level according to a predetermined calculation formula. In this embodiment, when the piano switch 15 is operated, the lighting load corresponding to the operated piano switch is changed to, for example, the real 112 in FIG.
Dimming control is performed at a dimming level that changes as shown by 1.

Point X, which is the horizontal axis in FIG. 4, is a parameter corresponding to time, and in this embodiment, 100 points are set. By specifying point X, the dimming level is calculated based on a predetermined calculation formula, that is, the calculation formula represented by the solid line 21. The period T during which this point X is changed can be set arbitrarily.

FIG. 5 is a flowchart for explaining the processing when the piano switch 15 is operated.

When the piano switch 15 is operated in step n1, the flag FLG is set to 1 in step n2. This flag FLG indicates that the current master fader 14
It is judged whether or not it is changing. In other words, when the flag FLG=1, the setting level of the master fader 14 is changed, and when the flag FLG=O, the setting level of the master fader 14 does not change (not used).In step n3, the data is initialized, i.e. Point X
The period T during which the is changed is set as the parameter t, and the point X is set as O.

FIG. 6 is a flowchart for explaining the dimming control operation performed at regular intervals. In step m1, it is determined whether flag FLG=0. Flag FLG=
When the parameter t is not 0, that is, when the master fader 14 is being changed, the parameter t is decremented by l in step m2, and it is determined in step m3 whether the parameter 1=0. When parameter 1=0, for example, 1 is added to point X in step m4.

In step m5, it is determined whether point X exceeds 100. If point X does not exceed 100, in step m6 the period T is again
is set, and the process proceeds to step m7. If the parameter t is not 0 in step rn3, the process proceeds to step m7 without changing the point X.

In step m7, the master fader 14 corresponding to the operated piano switch 15 is set to the level corresponding to point X, and the process proceeds to step m8.

When point X exceeds 100 in step m5, the flag FLG is set to 0 in step m9, and the process proceeds to step m8.

When the flag FLG=O in step m1, that is, when the master fader 14 is not used, the process proceeds to step m8. In step m8, other processes related to dimming control are performed.

The present invention realizes various changes in the dimming level by combining a plurality of types of changes in the dimming level carried out in response to the operation of the piano switch 15 as described above.

FIG. 7 is a graph showing changes in the dimming level when the piano switch 15 is operated three times. !
The dimming level shown by l l and the broken line 12 is calculated over time, and by operating the piano switch 15 at time s2, the dimming level shown by the broken line 13, the solid line 14, and the broken line 15 changes over time. The piano switch 15 is calculated at time s3.
By operating , the dimming levels shown by the broken line 16 and the solid line 7 are calculated over time. In this case, if multiple dimming levels exist at the same time, the maximum value is output as the actual dimming level, so
The dimming level is a solid line.

14. It changes as shown in 17.

FIG. 8 is a flowchart showing the processing when the piano switch 15 is operated. When the piano switch 15 is operated in step a1, 1 is added to the number of operations i in step a2. The initial value of the number of operations i is O, and increases by 1 each time the piano switch 15 is operated. In step a3, the flag FLGi is set to 1, and in step a4, the data is initialized, that is, the period T is set as the parameter ti, and the point Xi
Let be O.

FIG. 9 is a flowchart for explaining processing performed at regular intervals. In step b1, the number of operations i
It is determined whether or not is O. If the number of operations i is not O, the process advances to step b2, and l is set to the parameter j. In step b3, it is determined whether the flag FLGj=O. When the flag FLGj is not equal to O, that is, when the master fader 14 is currently being changed, the process proceeds to Stella 7b4, where the parameter tj is decremented by l, and it is determined in step b5 whether the parameter tj-0. When parameter tj=0, 1 is added to point xj in step b6.

In step b7, it is determined whether the point xj exceeds 100. If the point xj does not exceed 100, the process proceeds to step b8, and the period T is set to the parameter tj again, and the process proceeds to step b9. If the parameter tj is not 0 in step b5, the process proceeds to step b9 without changing the point xj. move on.

In step b9, if there are multiple dimming levels, the maximum value is set as the setting level of the master fader 14, and the process proceeds to step b10.In step b7, point xj
When exceeds 100, the process proceeds to step bll, where the flag is set to FLGj-0, and the process proceeds to step blo. Also, when the flag FLGj=O in step b3, the process proceeds to step blo.

In step blO, the parameter j is incremented by 1, and the process proceeds to step b12.

In step b12, the number of operations i is the parameter j
Greater than or equal to is determined. If parameter j does not exceed the number of operations i, step b
Return to step 3 and perform the same process.

When parameter j exceeds the number of operations i, step b1
The process proceeds to step 3, where other processing related to dimming control is performed.

By determining the dimming level in accordance with the flowchart shown in FIG. 9 in this manner, the dimming level changes as shown by the solid lines 11.degree. 14 and 17 in the graph of FIG. 7 mentioned above.

As described above, according to this embodiment, by operating the piano switch 15 multiple times and changing the operation timing, various changes in the dimming level can be realized.

FIG. 10 is a graph for explaining another embodiment of the present invention. The feature of this embodiment is that the piano switch 15 This is because it is reversed every time it is operated. That is, first, when the piano switch 15 is operated at time s5, the dimming level is set while increasing the point X by 1. Subsequently, when the piano switch 15 is operated at time S6, the next time the piano switch 15 is operated, the Kakimasha point x
The dimming level is set while decreasing the point X by 1, and when the piano switch 15 is further operated at time s7, the dimming level is set again by increasing the point X by 1. By performing such arithmetic processing, the dimming level changes as shown by actual tl110.

FIG. 11 is a flowchart showing the processing when the piano switch 15 is operated. When the piano switch 15 is operated in step C1, the flag HFLG is inverted in step c2. The flag HFLG is
Initially it is set to 1. When flag HFLG=0, point X is increased by 1, and when flag HFLG=1, point X is decreased by ].

In step c3, it is determined whether flag FLG=0. When the flag FLG=O, that is, when the master fader 14 is not currently being changed, the process advances to step c4, where the flag FLG is set to 1. In step c5, the data is initialized, that is, the period T is set to the parameter t, and the point X is set to O. step c
In step c5, if the flag FLG is not O, that is, if the master fader 14 has already been changed, the data is not initialized in step c5.

FIG. 12 is a flowchart for explaining processing performed at regular intervals. In step d1, it is determined whether flag FLG=O. When the flag FLG is not O, the process proceeds to step d2, where the parameter t is decremented by 1, and in step d3, it is determined whether the parameter 1=0. When parameter 1=0, flag HFLG=0 in step d4.
It is determined whether If flag HFLG=O, the process advances to step d5, and 1 is added to point X.

In step d6, it is determined whether point X exceeds 100. If the point Proceed to.

In step d8, the master fader 14 is set to the level corresponding to point Proceed, and in step d1 flag F
If LG=O, the process also proceeds to step d9.

If the flag HFLG is not 0 in step d4, the process proceeds to step dll, the point X is decreased by 1, and the process proceeds to step d12. In step d12,
It is determined whether point X is less than zero. When point X is 0 or more, the process advances to step d7, and the same process as described above is performed. When the point X is smaller than O, the process proceeds to step dlo, where the flag PLO is set to O, and the process proceeds to step d9. In step d9, other arithmetic processing related to dimming control is performed.

By setting the dimming level in accordance with the flowchart shown in FIG. 12 in this way, the dimming level changes as shown by the solid line ZIO in FIG. 10 described above.

As described above, according to this embodiment, by operating the piano switch 15 multiple times, it is possible to realize various changes in the dimming level.

Effects of the Invention As described above, according to the present invention, various changes in dimming level can be realized without changing the stored contents of the storage means and without performing complicated arithmetic processing. This improves the convenience and operability of the dimming control device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the basic configuration of a dimming control device that is an embodiment of the present invention, FIG. 2 is a block diagram showing the basic configuration of the dimming operation section 1 shown in FIG. 1, and FIG. 4 is a simplified plan view of the operation unit 6, FIG. 4 is a graph showing changes in dimming level when the piano switch 15 is operated only once, and FIG. 5 is a graph showing changes in the dimming level when the piano switch 15 is operated only once. A flowchart showing the processing, FIG. 6 shows the piano switch 15.
7 is a flowchart showing the processing at fixed time intervals when the piano switch 15 is operated only once, FIG. 7 is a graph showing changes in the dimming level when the piano switch 15 is operated multiple times, and FIG. A flowchart showing the processing when the piano switch 15 is operated, FIG. 9 is a flowchart showing the processing at fixed time intervals when the piano switch 15 is operated multiple times,
FIG. 10 is a graph for explaining the operation of another embodiment,
FIGS. 11 and 12 are flowcharts for explaining the operation of another embodiment. DESCRIPTION OF SYMBOLS 1... Dimming operation part, 2... Dimmer, 3... Lighting load, 4... Dimming level signal, 6... Operating part, 7...
- Storage section, 8... Main control section, 9... Dimming level calculation section, 13... Submaster playback section, 14... Master fader, 15... Piano switch

Claims (1)

[Scope of Claims] An operation switch, a storage means for storing a maximum value of a dimming level, and a memory device that stores a maximum value of a dimming level according to a predetermined arithmetic expression based on the maximum value as time passes when the operation switch is operated. a calculation means that calculates and outputs a dimming level and independently performs the calculation each time the operation switch is operated; and a calculation means that selects and outputs the maximum value of the dimming level based on the output of the calculation means. What is claimed is: 1. A dimming control device comprising: a dimming level selection means for selecting a dimming level; and a driving means for driving a lighting load based on an output of the dimming level selecting means.