JPH0329294A - Dimmer - Google Patents

Abstract

PURPOSE:To effectively product the lighting in time according to the progress on the stage by controlling dimming of lighting load through the operation of fade progress from the fade time stored in a memory on the basis of output level of a start operation device. CONSTITUTION:An output signal of a start button 28 is given to a processing circuit 1 from a bus 2 through an input port 29, and the circuit 1 operates the fade progression f1 with the lapse of time by the operation of pushing the button 28 corresponded to the scene. Hence, the formula is given as f1=T1/T2X100%, where T1 shows the elapsed time from a point of time operated the button 28 and T2 shows the fade time stored in a memory 7 corresponding to each scene. Also, the circuit 1 compares the fade progression f1 with an output level of a scene regeneration fader 25 which has been set corresponding to the scene and makes a larger value the actual fade progression f1, and works out an output level S0 of the scene through the operation. Thus, the operator can perform an effective lighting production in time according to the progress on the stage by operation of the start button 28.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a light control device, and more particularly, to a light control device that performs dimming control of a lighting load based on information regarding light control stored in a memory. Prior Art A typical prior art dimming operation is shown in FIG. When multiple cues are executed, the brightness, fade time, and delay time corresponding to each cue are stored in the memory, and by operating the first start button, the memory can be stored. The content is read out sequentially and the brightness of each scene is automatically adjusted.For example, as shown in Table 1, the playback behavior when the Bart Cue is stored in memory is is as shown in Figure 8. Table 1 Here, cue 1 in Table 1 represents the start of the Oth scene by the execution of cue 1, and cue 1 part 1.
represents the start of the first gene by the execution of cue 1. Table 1 is described below using similar expressions. When the start button is operated at time t1, cue 1 immediately starts fading and completes fading after 3 seconds. Cue 1 part 1 and cue 1 part 2 start fading at the same time at time t2, which is delayed by 2 seconds from time t1, and cue 1 part 1 starts fading after another 5 seconds.
Also, cue 1 and vert 2 complete their fades after 7 seconds. Cue 1 Bart 3 starts fading at jl at time t3, which is delayed by 5 seconds from time t1, and completes the fade in 3 seconds. Problems to be Solved by the Invention In such prior art, a plurality of predetermined scenes are continuously played back by one trigger, that is, the operation of the start button. Therefore, if the stage is progressing according to the schedule according to the fade time and delay time stored in memory, there will be no problem, but if a problem occurs, the stage's progress will be delayed or become faster again. However, there is a problem in that the prior art cannot cope with cases where the fade time and delay time cannot be stored in memory in advance due to improvisation. An object of the present invention is to provide a light control device that can perform effective lighting effects in accordance with stage progress.

Means for Solving the Problems The present invention comprises: a lighting load; a memory for storing the fade time of each of a plurality of scenes; a start operation means for instructing the start of fading of each scene; and a start operation means. This is a light control device characterized by comprising means for controlling the lighting load by calculating the fade progress of each scene in response to the output of the light control device. Function According to the present invention, the fade time for each of a plurality of scenes is stored in the memory, and by operating the start operation means, it is possible to instruct the start of the fade progression of each scene. Therefore, based on the output of this start operation means, the fade time stored in the memory is calculated to calculate the progress of the fade, and the dimming control of the lighting load is performed. Therefore, even if there is a change in the progress of the stage, the lighting can be directed effectively in accordance with the progress of the stage. Embodiment FIG. 1 is an overall block diagram of an embodiment of the present invention.
A processing circuit 1 realized by a microcomputer or the like connects, via a bus 2, a scene setting operation circuit 3, a memory operation circuit 4, a playback circuit 5, a page selection circuit 6 for selecting a scene and thus a page, and a dimming circuit. The output circuit 8 is further connected to a memory 7 for storing information regarding the . The output circuit 8 includes a digital-to-analog converter 9 that converts the digital dimming signal from the bus 2 into an analog signal, and what is the output of the digital-to-analog converter 9? is held in the sample fold circuit 10. The output for each of the lighting loads L1 to Lrr from the sample fold circuit 10 is given to the drive circuit D1Drr, thereby controlling the duty of the lighting loads L1 to Lrr and dimming the stage lighting. The configuration will be further described along with the memory operation of the scene shown in the second [ ].In the gene setting operation circuit 3, the lighting effect is controlled by the gene setting fader 12 provided for each scene. The output of each gene setting fader 12 is sequentially applied to an analog/digital converter 14 via a multiplexer 13 and converted into a digital signal '!;r:. Such an operation is shown in step a2 of FIG.

Next, operate the numerical keys 15 toward the memory operation circuit 4,
Set the number of the page that is a collection of scenes, the number of the scenes included in each page, and the fade time. Next, operate the execution key 16. The outputs of the numeric keys 15 and execution keys 16 are sent from the input port 17 to the processing circuit 1 via the bus 2.
is given to. Such an operation is shown in step a3 in FIG. In step a4, the processing circuit 1 stores in the memory 7 the memory operation f? Store the contents set in circuit 4, ie, page number, scene number, and fade time. In this memory operation circuit 4, the set contents can be visually displayed on the display 18. The display 18 displays a page number 19, a scene number 20, and a fade time 21,
You can check these contents. By repeating these operations and actions, each of the plurality of scenes is stored in the memory 7 in sequence. Referring to Figure 3,
The reproduction operation of the gene will be explained, and the configuration of the embodiment shown in FIG. 1 will be explained first. The page selection circuit 6 has a plurality of page selection buttons 22, and by operating these page selection buttons 12, a page of a scene to be reproduced is selected. Page selection #]
The output of 22 is given to the processing circuit 1 from the input port 23 via the bus 2. Such an operation is performed in step b in Fig. 3.
2.

In the next step EI3, the processing circuit 1 processes the gene that matches the page number selected by the page selection ta22 from among the contents stored in the memory 7 F! ! Call to circuit 1. The reproducing circuit 5 is provided with a scene reproducing processor 25 that sets the degree of fade progression to 14 ftEL for each scene. The outputs of these scene reproduction processors 25 are sent to an analog/digital converter 27 via a multiplexer 26, where they are converted into digital signals and sent to the bus 2.
is applied to processing circuit 1 via. The reproduction circuit 5 is also provided with a start button 28 which is a start operation means corresponding to each scene. The output of start j028 is applied to the processing circuit 1 from the bus 2 via the input port 29.

Otatto button 28 of the corresponding scene in Steg b4
By pressing , the processing circuit l calculates the degree of fade progress fi over time. Here, T1 represents the elapsed time from the time when the start button 28 is pressed, and T2 represents the fade time stored in the memory 7 corresponding to each scene. The processing circuit 1 compares the degree of fade progress fi expressed by the first equation with the output of the gene reproduction fader 25 set corresponding to the scene, and selects the larger value as the actual degree of fade progress fi. Then perform the following operation. SO=F i - LV...(2)
Here, SO is an output corresponding to the dimming level of the lighting loads L1 to Ln. L■ is the dimming level stored in the memory 7, and is the final level when the fade is completed. In this way, the output level SO of the scene is set to step b.
It is obtained by calculating in 5. Such calculations are performed for all the recalled scenes for each page, and the higher output level of each scene is determined in step b6.
It is output and given to output time n8. In this way, by operating the star 28 by the operator, it becomes possible to perform effective lighting effects in accordance with the progress of the stage.

As an embodiment of the present invention, the scene setting operation circuit 3 may be provided with a push button instead of the scene setting fader 12, and the dimming level of the lighting load may be directly set by inputting the push button. The page number of the memory operation circuit 4 can be set by operating the page selection button 22 provided in the scene selection circuit 6.
In addition, the setting of the scene number is performed using the start K in the playback circuit 5.
In still another embodiment of the present invention, the scene reproduction fader 25 may be omitted in the reproduction circuit 5. However, the fade progress degree fi may be determined based on the dimming level stored in the memory 7, and the output level of the scene may be calculated. Instead of the page selection button 22 in the page selection circuit 6,
Pages and therefore genes may be selected using numerical keys and a display. FIG. 4 is an overall block diagram of another embodiment of the present invention. This actual plane example is similar to the previous example, and corresponding parts are given the same reference numerals. It should be noted that in this embodiment, a display 31 is provided which is used together with the memory operation circuit 4 to input the playback order. The numerical keys 15 in the memory operation circuit 4 are used to memorize the playback order, and at this time,
The cue number 32 and page number 33 are displayed on the display 31, allowing confirmation during operation. Furthermore, a reproduction order calling circuit 34 is provided. This playback order calling circuit 34 has a cue feeder #035, and the output of this cue feeder 35 is sent to the bus 2 via an input port 36.
is given to processing circuit 1 from In the embodiment shown in FIG. 4, scene storage and scene playback are similar to the configuration and operation described in connection with FIGS. 2 and 3 (2I) above. The scene playback order is stored. In order to do this, the operation shown in FIG. I recognized this and pressed the execution key 16. As a result, step 7c2 in FIG.
sets the queue number and page number set above,
Store in memory 7. Such operations and actions are returned and the queue is sequentially stored in step C3. The action f1 for automatically reproducing the scene is shown in the sixth (2l). In step d2, the queue forwarding button 35 in the playback order call R34 is pressed.

As a result, the processing circuit 1 loads the page number stored in the memory 7 corresponding to the queue number 1 from the memory 7 in step d3. Next, the gene included in this page number is extracted from the memory 7 by the processing circuit 1.
is called in step d4. In this way, each time the queue sending button 35 is pressed, the genes are sequentially called to the processing circuit 1 in the order stored in the memory 7 in advance. As an embodiment of the pond of the present invention, when setting the cue number, the lighting load L1 is set in the gene setting operation circuit 3.
The dimming levels of ~Ln may be simultaneously stored in the memory 7 and recalled together with the lights during playback. FIG. 7 shows a reproduction order calling circuit 34 according to another embodiment of the present invention.
It is an electric circuit diagram showing a part of a. In this reproduction order calling circuit 34a, two faders 37 and 38 are configured as a so-called cross fader in which they are connected in reverse to each other, and the sliding pieces 39 and 40 can be displaced in conjunction with each other. When the output of one feeder 37 is O% and the output of the other feeder 38 is 100%, or when the output of the one feeder 37 is 100% and the output of the other feeder 38 is
When the output of is 0%, the scene is called from the memory 7 to the processing circuit l. Faders 37 and 38 correspond to the current scene and the scene to be played next, respectively. In addition, a submaster fader 41 is installed to correspond to the current gene,
It may also be used to execute a cue by sequentially starting to fade scenes within one page. By using the cross faders 37, 38 and the submaster fader 41 in this manner, it becomes possible to show changes in lighting for, for example, performing a play. In addition, in order to produce a music show, etc., one page is stored in the memory 7 corresponding to the lighting effects for l songs.
It is also possible to quickly select each page using the page selection circuit 6. In this way, a light control console with a sub-master fader that can perform page switching,
By using a sub-master memory that assigns and stores scenes to faders, it is possible to realize a fade start for each gene, that is, a vert cue.

A dimming device that has a submaster memory that can switch pages is used for producing rock shows, etc., and is useful for producing lighting effects using one page of submaster memory for each song. Well designed. When the song changes, a different bass can be instantly called up to create a lighting effect.

In addition, a piano switch is provided so that each submaster memory can be instantaneously turned on and off. In this way, the number of pages is set to 20 to 50 pages, and the submaster memory is set to 10 to 40 pages. On the other hand, when performing lighting effects for a play, elements that show changes in light are important, so part control is incorporated. In the above-mentioned embodiment, these two conflicting productions, namely rock show and play, can be realized with one dimming device.In other words, the sub-master memory can be used as a part cue. By doing so, conflicting lighting effects such as a rock show and a play can be performed using a single light control device. In the embodiment in which the cue feed is performed using the crossfaders 37 and 38 shown in FIG. 7, the production ability of the play is particularly enhanced. Effects of the Invention As described above, according to the present invention, it is possible to instruct the start of fading of each scene by the start operation f1 means g) operation f1, and by operating the star operation means, It is possible to calculate the fade progress based on the fade time of each scene stored in memory and control the lighting load, so when the stage progress is delayed or accelerated, or when improvisation etc. Even when the stage is moving, it will be possible to perform lighting effectively in perfect timing with the progress of the stage.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, FIG. 2 is a flowchart for explaining the storage operation in the embodiment of FIG. 1, and FIG. A flowchart for explaining the playback operation of the embodiment,
FIG. 4 is a block diagram showing the overall configuration of another embodiment of the present invention, and FIG. 5 is a flowchart for explaining the operation for storing the playback order of scenes in the embodiment shown in FIG. 4. 61st El? 1 is a flowchart for explaining the automatic scene playback operation of the embodiment shown in No. 4l7l, and No. 71:lJ is an electric circuit diagram showing the configuration of the playback order calling circuit 34a of still another embodiment of the present invention. , FIG. 8 is a diagram for explaining the prior art. 1... Processing circuit, 2... Bus, 3... Scene setting operation circuit, 4...
- Memory operation circuit, 5... Reproduction circuit, 6... Page selection circuit, 7... Memory, 8... Output circuit, 12...
・Scene setting fader, 15...Numeric key, 16...
・Execution key, 22...Page selection button, 25...Scene playback fader, 28...Start button, 34.34a
...Playback order calling circuit

Claims (1)

[Scope of Claims] A lighting load, a memory for storing fade times for each of a plurality of scenes, a start operation means for instructing the start of fading of each scene, and in response to an output from the start operation means, 1. A light control device comprising means for controlling a lighting load by calculating the fade progress of each scene.