JPS6321791A - Dimmer - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a light control device used for, for example, a stage or a studio.

BACKGROUND TECHNOLOGY In general, a light control device realizes the lighting levels of multiple lighting loads set by an agitation unit consisting of a keyboard, slide volume, etc., and also realizes a scene (hereinafter referred to as 'scene') which is a set of lighting levels of multiple lighting loads. This is a device that realizes a transition (hereinafter abbreviated as a fade). By operating the operation unit, scenes set in advance according to the progress of the stage program and the 7 aids between scenes can be realized faithfully and smoothly.

In recent years, dimming VC equipment uses a large amount of inexpensive memory elements to store all the dimming levels and fade times of one load of lighting equipment used for each scene to be produced, and the actual playback operation starts at 7 aids. There is an increasing number of systems in which the stored scenes and fade times are sequentially recalled by pressing a button or the like, and the seven fades are automatically advanced.

FIG. 7 is a block diagram showing the configuration of a typical prior art light control device 1. The configuration of the light control device 1 will be explained with reference to FIG. The l14 optical system 1 includes an operation section 2 for inputting dimming data, a control section 3 for inputting the dimming data from the operation section 2, and a control section 3 for controlling the dimming level and fade time inputted by the operation section 2. Regarding the dimming data of 1
It includes a storage section 4 that stores the dimming level Ai after the fade operation is completed, and a storage section 5 that stores the dimming level B of the fade starting surface.

Data regarding the fade time inputted from the operation unit 2 is inputted to the automatic fade calculation unit 6, and a fade progress value F is calculated as time progresses.

The output of the automatic fade calculation unit 6 is given to the terminal 7a of the switch 7, and the terminal 7c is used for a fade calculation that calculates the output level to the actual lighting load based on the fade progress value F and the dimming levels Ai and Bi. Common terminal 7c connected to section 8
is electrically connected. Therefore, the output from the automatic fade calculation section 6 is given to the fade calculation section 8, which calculates the output level of the lighting load.
(not shown). Here, the storage units 4 and 5
The human output of data to the output unit 9 via the fade calculation unit 8 is controlled by a control unit 31 realized by a counter or the like.
Synchronization is achieved by a synchronization signal CK from 0.

On the other hand, for example, in stage lighting, RF
In J, for example, if the operator makes a mistake in starting the 7th aid, this may cause a delay in stage progress, making it difficult to continue the automatic fade. In such a case, the manual fade gI section 11 is used to stop the progress of the automatic fade and to receive the output from the slide volume of the four section 2. The output of the manual fade unit 11 is applied to the terminal 7b of the switch 7. That is, terminals 7b, 7
When c is made conductive, the fade calculation section 8 calculates the output level based on the fade progress value F from the manual fade calculation section 11 and the dimming levels Ai and I3i from the storage section 4.5.

In this way, the conventional technology dimmer! ! Although it is possible to switch the operation from automatic fade to manual fade in 1, it is possible to switch the operation from automatic fade to manual fade, but it is not possible to switch the operation from automatic fade to manual fade. I! Since the position of the IJ fader becomes the fade progress value F, switching n
Connect terminals 7b and 7e of 7 and connect! I! When switching to IJ fade, if the position of the manual fader does not match the fade progress value F calculated by the automatic fade calculation unit 6, the dimming level output from the output unit 9 will change rapidly,
This will cause undesirable problems with the nose pedestal lighting, etc.

In order to solve these problems, the manual fade calculation unit 11 is configured as an NIT structure as shown in FIG. 8.

In other words, the analog output from the manual fader 12 of the operation unit 2 is converted into analog/digital (hereinafter abbreviated as A/D).
The converter 13 converts it into a digital output, which is output to the terminal 711 of the switch 7.

On the other hand, the output of the A/D converter 13 is output to a comparator 14 that detects a digital output corresponding to the case where the manual fader 12 has the lowest output "0". The output of the comparator 14 is
Line 1 is input to one terminal of AND date 15, and a manual switching signal for switching from the own 11jlJ7 aid control state to the manual fade control state is derived from the other terminal.
6 is connected.

That is, the manual switching signal is at a high level, and comparison 1! ! ! 14, the manual fader 12 is at the lowest i1!
Only when rOJ is detected, the AND date 15 derives a high level signal, for example, and the switch 7
Terminals 7b and 7c are made conductive.

Figure Ij49 is a diagram showing an example of the operation of such a conventional technique. The 7th aid starts at time FO, and the manual switching signal is set to a high level, for example, at time FL.

At this time, if the manual switching signal remains at low level,
Line between time FO-FL! The fade that progresses to i as shown by the solid line in 1 is line! Continue 7 aids as shown by the dashed line 2, and reach the final output level at tlJFl! A
The 7th aid ends when .

When the manual switching signal becomes high level at JIJ F t, the terminals 71+ and 7c of the switch 7 are electrically connected, and the fade section g 8 shown in FIG.
The output from z is given. - Since the output of the force, the 7th aid and the progress value F from the manual fade performance unit 11 depends on the amount of operation from the lowest position rOJ of the manual 7th stage 12 shown in FIG. Therefore, the progress of the manual seven aids after time [:'L] is as shown by the dashed line) 3 in FIG. 9.

In order to reach V, that is, the final output level of the fade, the fade time from the fade end time F1 to time F2, which is a time yi after the fade end time F1, is required. Therefore, there was a problem with Toku that it was difficult to achieve a smooth fade on stage. Furthermore, as mentioned above, in the conventional example shown in FIG.
In order to proceed with the manual fade operation from OJ, if you switch from automatic fade to manual fade at time Ft in Figure 9, the final level! There is a problem in that A cannot be made higher or lower than the level JIC at the switching time Ft.

Purpose The purpose of the present invention is to solve the above-mentioned problems, and even when switching from automatic fade to manual fade, it is possible to avoid manual fading. I]
It is an object of the present invention to provide a light control device that can perform smooth side light control without depending on the position of a manual seven-point switch at the time of switching the fading progress by a fader.

Embodiment FIG. 2 shows the dimming Vcfi! of one embodiment of the present invention. 21 is a block diagram showing an example of the configuration of 21. FIG. The light control device 21 is realized by, for example, a keyboard, a slide volume, etc., and includes an operation section 22 for inputting light control data.
and a storage section 13 realized by, for example, RAM (random access memory), in which the dimming data inputted by the operation section 22 is stored, and the lighting load 24 is driven based on the dimming data from the storage section 13. Based on the operation W and n25 that calculates the output level and the calculation result of the calculation unit 25, the illumination negative! The dimmer main body 29 includes a dimmer signal output section 27 that outputs a dimmer signal to the dimmer 2G that drives the dimmer 24, and a control section 28 that controls these operations. , typically a plurality of dimmers 26 and lighting loads 24 are connected.

FIG. 1 is a block diagram showing the basic configuration of the light control device 21 according to an embodiment of the present invention, and FIG. FIG. 2 is a block diagram showing an example of the configuration of a storage device 21. FIG. The configuration of the main body 29 of the dimmer Wi21 will be described with reference to FIG. fj41 and FIG. The operation unit 22 is a manual control device realized by a slide volume or the like as shown in the third diagram.
0, the fade time 1'O for fading, the dimming level Δ1 after completion of 7 fades, the current dimming level 13;, etc. are manually generated.

Dimming data regarding automatic fade inputted from the operation section 22 is provided to the storage section 32 and the storage sections 33 and 34, respectively, via the control section 31 implemented by a microprocessor or the like. In the automatic fade calculation unit 35 connected to the control unit a 31, 7 of the operation unit 22
In response to the fade Ill start instruction, the fade progress value F=Tt/TO...(1) Tt: Elapsed time is calculated in relation to the preset fade time 'rO, and the second Fade calculation ff that calculates the output level for driving the illustrated lighting load 24
! ! 37.

The values of either one of the storage sections 32 and 33 are inputted to the fade conversion section 37 via a switch 39 which is controlled by a manual fade conversion section 38 having a configuration and operation to be described later. Further, the pre-7-ade dimming level Bi in the storage section 34 is output as is to the fade calculation section 37.

At the start of the fade, the common terminal 36e of the switch 36
Ha, white! l! It is electrically connected to the terminal 36m connected to the JJ7 aid part 35. Further, the common terminal 39C connected to the fade calculation section 37 of the switch 39 is connected to the storage section 32.
The terminal 39b is electrically connected to the terminal 39b. In the fade calculation section 37, white! ! ! J] 7 fade progress value F of the first equation from the fade calculation section 35 and 7 from the storage section 32.
The output level Oioi=I3i+F(Ai f3i) to the output 27 is determined by the dimming level Ai after the completion of the program and the current dimming level Bi from the storage unit 34.
=12) is calculated sequentially as the 7-ed progresses.

The output level Oi of the fade calculation section 37 is controlled by the control section 4.
The data is fed back to the storage section 34 based on the synchronization signal starting from zero.

In addition, in the manual fade converter 38, the manual fade converter 38
The raw analog signal is called analog/deftal (hereinafter referred to as
(abbreviated as A, /D) converter 41 and is converted into a digital signal, and this digital output is sent to one terminal of a manual fade calculation unit 42, a storage unit 43 realized by RAM, etc., and a comparator 44, respectively. input in parallel. The other input terminal of the comparator 44 is given data from the storage section 43 . The output of the comparator 44 controls the switching state of the switch 39. Also, manual fade calculation section 4
The output of 2 is given to the terminal 39b of the switch 36, and the switching state of the switch 36 is determined by the lines 45 and 46 from the control section 31.
is controlled by a manual fade switching signal S1 via. This manual fade switching signal S1 is also input to the storage section 43.

FIG. 4 is a graph showing the operation of the dimming VC device 21 shown in the second diagram, which has the dimming device main body 29 configured as shown in the third diagram.

The operation of the light control device 21 of this embodiment will be explained with reference to FIGS. 1 to 4. When the operation unit 22 instructs to start fading at time FO in FIG. 4, the light control device 21 outputs, for example, the actual #i! in FIG. 4 (1)! Perform 7 aids in the fade mode shown by 4.

Here, when a switching operation from automatic 7 aid to manual fade is performed on the operation section 22 at time Fc, the control section 31
outputs a manual fade switching signal S1, which is applied to the storage unit 43 of the manual fade conversion unit 38 and is also applied to the switching device 36.
It also switches the switch 36, which had been conducting between the terminals 36a and 36c, to conduct between the terminals 3G+) and 36C.

Therefore, after the time Fc, the fade progress value F to the fade calculating section 37 is given from the manual fade converting section 38.

In the manual fade converter 38, the analog level signal inputted from the manual 7eg 30 is converted to the A/D converter 4.
1 into a digital signal Fe, and this data is stored in the storage section 43.

The analog/digital conversion operation of the A/D converter 41 and the writing operation of its output to the storage unit 43 are generally synchronized with a synchronization signal of the same phase, and therefore are performed at the timing of the synchronization signal. 1i in the storage unit 43
When the A/D converter output Fe described in fj is stored, the manual fade calculation unit 42 stores the A/D converter output Fe at the next timing, for example.
The output Fe is taken into the /D conversion 2, and the denotal output Fct stored in the storage section 43 one timing before is also taken in.

The manual fade calculation unit 42 calculates these values Fe.

Fade progress value FF by Fet F = (Fe Fet) / (I Feet)
−(3) is calculated.

Also, at the same timing as this calculation, for example, the comparator 44 outputs the digital value F.
Compare e and FeL. Here, the comparison result is FeL≦Fe
...(4), the switching signal S2 which is the output of the comparator 44 is connected to the terminal 39b,
39c is conductive, and if the comparison result is FeL>Fe - (5), the switching signal S2 is transferred to the terminal 3 in the switching device 39.
9a and 39c are electrically connected.

Therefore, at time F[ in the rPJA diagram, when the automatic 7 fade is switched to manual fade, the fade progress value F shown in the above third equation output from the manual fade conversion section 38 to the fade calculation section 37 is It will have different values depending on the position of manual operation of the 7-Aeg 30. Changes in the dimming level after the first point in time when such automatic fade is switched to manual fade are shown after time FL in FIG. 4.

In other words, if the automatic fade has not been switched to manual fade at time Ft, then at time Ft
The following 7 aids are the solid line mentioned above! JI with the automatic fade shown in 4! Continuing, Ha#ilJ! Time F1 when the fade indicated by 5 is performed and the final dimming level No. A is reached.
The fade ends.

On the other hand, at time Ft, when switching from automatic fade to manual fade, the 1-point 4n line in FIG. 4 (1)! 6
A manual fade is performed in the manner shown in , and the final dimming level J! A l: The manual fade ends at the reached time F2.

In the above embodiment, as described in the prior art section, switching from automatic fade to manual fade was possible only when the thrust position of the manual fader 30 was "0"; At any operating position of 7A730,
You can switch from automatic fade to manual fade. Further, after the time FL when the switch is made to manual fade, the fade can proceed in either the direction of increasing or decreasing the dimming level. That is, if the fourth equation holds true, manual fade can be performed in any direction between the final dimming level A and the dimming level IC at the time of switching, and if the fifth equation holds, the fade starts. Time FO dimming level No. B and switching time XlI
Make it possible to perform a manual fade by opening the F L dimming level IC.

Therefore, switching from automatic fade to manual fade is done by hand! This can be done regardless of the operating position of IJJ 7 Aeg 30, and since it was switched to manual fade,
It is possible to advance the fade in any direction of increasing and decreasing light control level, and the operability of such a waste collecting device 21 is greatly improved.

FIG. 5 is a block diagram showing the configuration of the dimmer main body 29a of the embodiment of the present invention, with reference to FIG. 5tpJ5.
The configuration of the light control device main body 29a of this embodiment will be explained. This embodiment is similar to the previous embodiment, and corresponding parts are given the same reference numerals.The noteworthy point of this embodiment is that in the manual fade conversion section 38 of the dimmer main body 29a, the control section The line 46 from which the switching signal S1 is output and input to the storage section 43 is connected to one input terminal of the OR date 47, and the input of the comparator 47 is inputted to the other input terminal of the OR date 47 via the line 48. , and this comparator 44
The digital signal Fe from the A/D converter 41 is inputted to one input terminal of the , and the digital signal Fe from the A/D converter 41 is inputted to the other input terminal by the clock signal from the clock signal generator 49 as described later. The output of the latch circuit 50 that latches the signal is provided.

In other words, A/D'! to the storage section 43! The writing operation of the digital signal output Fe of the i converter 41 is performed manually by the control unit 31!
I! This is done regardless of whether the IJ fade switching signal 81 or the switching signal S2 from the comparator t4 is used.

Further, the comparator 44 outputs a digital signal F from the A/D converter 41 which is latched by the latch circuit 50 at one timing according to the clock signal from the clock signal generator 49.
et is compared with the digital signal output Fe input to the comparator 44, for example, one clock after the timing.

If the fourth equation holds true regarding the digital signal outputs F et and Fe in C), the switching signal S2 output from the switch 44 conducts the terminals 391+ and 39e of the switch 39, and the fifth equation If it holds true, terminal 3 of the switch 39
9a and 39c are electrically connected. In other words, the comparator 44 detects the direction in which the manual fade by the manual fader 30 is progressing. That is, the configuration of this embodiment can also realize the basic operation according to the embodiments described above.

tj46 is a graph explaining the dimming control operation by the dimming device main body 29a of this embodiment. The operation of this embodiment will be explained with reference to FIGS. 5 and 6. The automatic fade from the fade start time FO to the switching time DOL and the virtual automatic fade indicated by the broken line 5 are the same as in the previous embodiment. On the other hand, at the switching time FL, if the progression of manual fade by the manual fader 30 after switching from automatic fade to manual fade satisfies the above-mentioned formula 4, that is, in the case of manual 7 fade in which the dimming level increases, the switching From the current dimming level IC to the final dimming level, i! One fish m1 (3) in Figure 6 (1) moves 7 yards toward lA.

If the operating direction of the manual fade is reversed in the direction in which the dimming level decreases during the manual fade from switching time F to the above-mentioned time F2, as described in the example of Moe, the hand! ! lJJ During the 7-ade period, the fade progress value F is determined only by the 4 operation positions of the manual fader 30, so the two-dot chain line in Fig. 6 (1)! As shown at 7, the fade initiator is followed by a linear 7 aid towards Verno B. I) Also in this embodiment, it is possible to obtain the same effect as that described in the embodiment mentioned above.

Effects As described above, the 7f4 optical device according to the present invention can switch to manual fade while performing automatic fade based on the dimming data stored in the storage section. After this switching time, fade progress control data for controlling the progress of the fade is output corresponding to any agitation position of the manual fader at the time of switching. Therefore, such switching from automatic fade to manual fade can be realized regardless of the operating position of the manual fader, and the light control mode by the light control device can be greatly diversified. In addition, regardless of the agitation position of the manual fader, it is possible to switch to the manual fader 7, so it is possible to change the dimming level immediately after switching to manual fade. The four-function performance of the dimming V device is greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the basic configuration of a light control device body 29 according to an embodiment of the present invention, and FIG. 52 shows a light control device 21.
FIG. 3 is a block diagram showing an example of the configuration of the light control device body 29, FIG. tjS4 is a graph showing the dimming control mode of this embodiment, and FIG. A block diagram showing a configuration example of a light control device main body 29a of the embodiment,
Figure 6 shows the dimming control of this embodiment! ! ! A graph showing the
7 is a block diagram showing the configuration of a conventional light control device 1, FIG. 8 is a block diagram showing a structure related to the manual fade calculation section 11 of the light control device 1, and FIG. 9 is a block diagram showing the structure of the light control device 1. Dimming control 1! ! This is a graph showing the situation. 21... Light control device, 22... 4 parts, 23.32~
34.43...Storage unit, 24...Lighting load, 25.
...Arithmetic section, 28, 31.40...Control section, 29.2
9a...Dimmer main body, 30...Manual fader, 3
5...Automatic fade performance W, part, 3G, 39...Switcher, 37...Fade calculation section, 38.42...Manual fade calculation section, 50...Latch circuit, Sl... Manual fade switching signal, S2...Switching signal agent Patent attorney Number of strokes Keiichi 21 Figure 2 Figure 4 4w) F, -F: Original fade Figure 8 Figure 9

Claims (1)

[Scope of Claims] An operating section including a manual fader and inputting dimming data; a storage section storing the dimming data; a first computing section that computes fade progress control data for manual fade and automatic fade, respectively; a second calculation section, a fade calculation section that calculates a dimming level based on the output of the first calculation section or the second calculation section, and a fade calculation section that selectively switches the outputs of the first and second calculation sections. and a control unit for controlling these operations, the first calculation unit being configured to calculate fade progress control data corresponding to an arbitrary operating position of the manual fader. Device.