JPH0381993A - Dimmer device - Google Patents

Abstract

PURPOSE:To perform cross fade with ample rendering characteristic by changing over at least one of the fader outputs from a cross fader by a changeover device from one computing device to the other, and performing cross fade control between two illumination load groups. CONSTITUTION:When a cross fader 6 is operated to make cross fading, the level data Ca set by a fader CA rises from 0 to 100%, while the level data Cb of another fader CB sinks down to 0%. With computation by a guest seat dimming computing part 5b, the dimming level of a guest seat circuit W lowers in the direction of arrow l2, and on the contrary the dimming level Y2 of a scene circuit U rises from 0 level in the direction of arrow m0. If changeover circuits 7a-7c are restituted at the time t3 when the cross fade is finished as described, the guest seat circuit (w) is thereafter separated from the cross fader 6 and put under control by a guest seat dimming control part 5.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a light control device suitably implemented on stages, studios, etc., and more specifically, it is possible to cross-fade the light control on the audience seat side and the stage side integrally. This invention relates to a light control device.

BACKGROUND ART FIG. 5 is a block diagram showing the configuration of a conventional light control device 41 used in theaters, studios, and the like. Light control device f
41 is composed of a light control unit 42 and a light control console 43. The light control unit 42 is a lighting load circuit w l
, W 2 , ..., wn (generally referred to as W), a plurality of dimmers PL, P2.
..., Pn, and the lighting load circuits W1 to Wrl
are individually connected to the corresponding optical devices P1 to Pr.

The light control console 43 is provided with an operation section 44, a storage section 45, a control section 46, a calculation section 47, a signal output section 48, and the like. The operation unit 44 includes a plurality of numeric keys, a wheel,
Equipped with input means such as switches, load combinations (channels) and lighting levels corresponding to the production program for each scene are set in advance, and the set data is stored in the storage unit 45.
Stored in The control unit 46 sequentially reads data in synchronization with the progress of the program, and the dimming calculation unit 47 calculates the necessary dimming level from the read data and performs a crossfade using these data using a crossfader (not shown). Performs calculations and attempts to transition from one scene to the next. The signal output unit 48 outputs a dimming signal s based on the dimming level.
1 to srx are created and given to the dimmers P1 to Pn, and dimming control is executed.

The objects to be controlled by such a light control device 41 are divided into two: a stage lighting load used for production on the stage, and an audience lighting load used for illuminating the audience seats. was controlled.

Incidentally, in recent years, dimming control on the audience seating side has become important in stage production, and dimming devices have been proposed that have a scene change function that includes audience seating lighting.

FIG. 6 is a block diagram showing the configuration of a light control device 51 having such a function. Inside the dimming operation console 53, there is an audience seat circuit control section 54 for independently controlling the audience seat lighting load circuits W1 to Wrt, and a stage lighting load circuit U1 to URT.
A stage circuit control section 55 for controlling the circuits and a plurality of switching circuits 1 to Kr5 (indicated by reference numerals when collectively called) are provided. The passenger seat lighting load circuit W is normally connected to the output lines 91 to (1'Q) of the passenger seat circuit control section 54 via contacts c-b to the switching circuit, but when the switching circuit K is activated, When the contacts ca and a are electrically connected, they are switched and connected to the output lines rbl to rbn of the stage circuit control section 55.The part shown here as the stage circuit control section 55 is shown in FIG. This corresponds to the part shown as the optical operation console 43.

In FIG. 6, the input operation section 5 in the stage circuit control section 55
The data of the dimming level for each scene of the stage lighting load circuits u1 to un (collectively referred to as U) set in step 6 is stored in the channel level storage unit 57, and is sequentially sent to the CA side for each scene. It is read out to the memory buffer 57a or (B-side memory buffer 57b) and calculated by the crossfader calculation unit 58. The calculation result is converted into analog data by the digital/analog converter 59 in the output unit 48, and then sent to the demultiplexer 60. The line ral~ is sent to the line ral~ as the dimming signal sal~sart for each channel.
Stage dimmer P1 in the dimmer unit 52 via RAN
~Pn, respectively.

In addition, audience seat dimming signals sbl to sbn for using the audience seat lighting as one scene of stage production are similarly set and created by the input operation section 56, and the lines rb1 to rbrt
It is connected to one contact a of the switching circuit via. As described above, the output lines (11, (12, . . . ) from the passenger seat circuit control section 54 are connected to the other contact point of the switching circuit.

In this way, the audience seat lighting load circuit W is normally dimmed and controlled based on the audience seat dimming level set by the audience seat circuit control section 54, but when the audience seat lighting is used for presentation purposes, such as at the start of a performance, for example. When the switching signal 2 is output from the input operation section 56 and the contact a-(lWI is made conductive to the switching circuit, the audience seat lighting load circuit W is connected to the stage circuit control section 55 side. It is managed by the input operation section 56 in the same way as the lighting load circuit U, and is controlled by the crossfader calculation section 5 on the stage side.
A crossfade by 8 is performed.

Problems to be Solved by the Invention However, when using the above-mentioned light control device 41, the lighting on the audience seat side is separated from the control of the audience seat circuit control section 54 and controlled by the stage circuit control section 55. . For this reason, the stage circuit control section 55111 must also set the dimming level of the audience seat lighting load circuit W completely separately from the audience seat circuit control section 54, and input it to the channel level storage section 57, which is a hassle. It's complicated and inconvenient. Another problem was that the level could not be easily adjusted depending on the situation of the audience seats.

An object of the present invention is to solve the above-mentioned problems, set the dimming level of the first lighting load group set in the first control device as it is to the crossfader of the second control device, and
To provide a light control device that can easily realize cross-fade between @bright load groups, improve presentation effects, and improve operability.

Means for Solving the Problems The present invention is a light control device that includes a first control device that controls dimming of a first group of lighting loads, and a second control device that controls dimming of a second group of lighting loads. , the first iM control device includes a first dimming data generating means for generating dimming data for the first lighting load group, and a first dimming data generating means for performing a fade operation on the dimming data to control the first lighting load group. a first calculation means for outputting dimming control data; the second control device includes a second dimming data generating means for generating dimming data for each continuous time range of the second lighting load group; and a third computing means for outputting dimming control data. a dimming data generation means; and a cross fader that converts a dimming control state from dimming data for one time zone to dimming data for another time zone.

Each fader output of the crossfader and the second and third
and a second calculation means that performs a fade calculation with the dimming data from the dimming data generating means and outputs second dimming control data for controlling the second@bright load group, The light control device is characterized in that it includes a switching means for switching the fader output of at least one of the faders between the first calculation means and the second calculation means.

Function: The light control device according to the present invention generates first light control data by performing a fade operation on the first light control data from the first light control data generating means in the first control device using the first calculation means; The first lighting load group is dimmed and controlled based on the first dimming control data. Further, the second calculation means calculates the second dimming data from the second dimming data generating means in the first control device, the third dimming data from the third dimming data generating means, and each fader output of the cross fader. A fade calculation is performed to create second dimming control data, and the second lighting load group is dimmed and controlled based on the second dimming control data.

The fader output of at least one of the crossfaders is switched from the second calculation means to the first calculation means by a switching means, and cross-fade control is performed between the first lighting load group and the second lighting load group. I can do two things.

Embodiment FIG. 1 is a block diagram showing the configuration of a light control device 1 according to an embodiment of the present invention. The light control device 1 includes a plurality of stage lighting load circuits UL that constitute a stage lighting system.

u2. ..., un (the reference mark U is used when referring to them collectively), and a plurality of passenger seat lighting load circuits w 1 , w 2 , ..., W ri (
The light control unit 2.
3, a stage circuit control section 4 as a second fill 11 device and an audience seat circuit control section 5 as a first control device,
The switching means 7 includes a crossfader 6 and a switching means 7 for selectively connecting at least one output of the crossfader 6 to the audience circuit control section 5. The switching means 7 includes a plurality of switching circuits and a switching circuit for driving the switching circuits. It is formed by a switch (not shown). The stage lighting load circuit U and the audience lighting load circuit W include stage lighting lights Ul, U2 .・
..., Llrt and the first lighting load group, the passenger seat lighting w
1, W2. . . , Wn are connected to each other.

FIG. 2 is a block diagram showing the electrical configuration of the light control device 1 of this embodiment. In FIG. 2, parts corresponding to those in FIG. 1 above are designated by the same reference numerals. This will be explained below with reference to FIG.

The dimmer unit 2.3 includes stage dimmers P1 to Pn provided corresponding to a stage lighting load circuit (hereinafter referred to as a stage circuit) U and an audience seat lighting load circuit (hereinafter referred to as an audience seat circuit) W.
and passenger seat dimmers Q1 to Qn (when used collectively, refer to P
, Q). For example, semiconductor switching elements are used for the dimmers P and Q, and the dimming signal su, which is second dimming control data from the stage circuit control section 4 described later, is used.
1 to s ur+ and the stage circuit U at a desired dimming level, which are individually phase-controlled by dimming signals s w 1 to s w r+, which are the first dimming control data from the audience seat circuit control unit 5. Each of the passenger seat circuits W is dimmed and controlled.

The stage circuit control section 4 includes an input operation section 11, a storage section 12, a crossfade calculation section 13, a signal output section 14, and a crossfader 6, and further includes a changeover switch 15 forming the switching means 7, A plurality of switching circuits 7a and 7b switch and connect one terminal of the fader 6 to the audience seat circuit control section 5 side.

7c is provided.

A stage circuit U set by input means such as a plurality of numeric keys and wheels (not shown) arranged on the input operation section 11
The data on the dimming level is stored in the channel level storage section 12 (in the storage section 12) and is stored in the CA side memory buffer 12a which is the second dimming data generation means or the CB side memory which is the third dimming data generation means. The data is read out to the buffer 12b, and the crossfader calculation unit 13 as a second calculation means
is input.

The crossfader calculation section 13 includes a pair of multiplication circuits 13a and 13b corresponding to the CA side memory buffer 12a and CB side buffer memory 12c, an addition circuit 13 for adding the outputs thereof (and a pair of analog/digital converters 13).
d, 13e.

Is there a switching circuit between the crossfader 6 and the crossfader calculation section 13? a and 7b are involved, which will be described later.

The multiplication circuits 13a and 13b are connected to the CA side memory buffer 12.
a, data Da and Db input from the CB side backup memory 12c, and the fader C forming the crossfader 6.
Crossfade data from A, CB (a, (b) and the following two multiplications Ca-Da, Cb-Db
-(1) is executed, and the addition circuit 13c adds (Ca-Da) + (Cb-Db)
- Execute (2). The calculation result is converted into analog data by the digital/analog converter 14a in the signal output section 14 connected to the next stage, and then sent to the demultiplexer 1.
4b, the stage light control signals su1 to sun are distributed to the respective dimmers P1 to Prl, and the light control of the corresponding stage circuits u1 to un'\ is performed.

The audience seat circuit control unit 5 includes a plurality of audience seat circuit faders Fl, F2 that individually set the dimming level to the audience seat circuit W.
．． ..., Fn and a mask fader FO that collectively controls them are located on an operation panel (not shown).
Audience circuit fader Fl.

F2. ..., individual dimming level fl set with Fn
~fn is sequentially converted into digital data by one of the analog/digital converters 5b via the multiplexer 5a, and then converted to the first data of the audience seat dimming calculation section 5d, which is the first calculation means.
It is input to input terminal g1.

The collective control bell fO set by the master fader FO is also converted into digital data by the other analog/digital converter 5C and is input to the second input terminal g2 of the audience seat dimming calculation section 5d.

The audience seat dimming gi calculator 5d is further provided with a third human power terminal g3, and a switch port i? The contact (3) of the changeover circuit 7 (and the changeover switch 15rr:I is connected to the OR gate 17, so that no matter which of the changeover signals zl and z2 from the changeover switch 15 is input, the contact c3 is switched to the contact a3 side, and further cooperates with the switching circuits 7a and 7b to input one of the cross fade levels ca and cb set by the cross fader 6 to the third human input terminal g3. The optical calculation unit 5d performs multiplication C(a
, b) Execute fo-fm-(3).

Here, C(a, b) is the output data of the fader connected to the multiplication circuit 5d among the pair of faders CA and CB forming the crossfader 6, fO is the output data of the master fader FO, and fm is the output data of the fader connected to the multiplication circuit 5d. Audience seat circuit fader F1~
This is data on individual dimming levels set in Frs. The third equation shows that the cabin dimming level set by the passenger seat circuit faders F1 to Fn and the master fader FO is adjusted by the output level of one fader CA or fader CB of the crossfader 6. .

The above calculation result by the passenger seat dimming calculation section 5d is the result of the calculation by the passenger seat circuit W.
Digital/analog converters r1, r2 .・・・
・, rn is converted to analog, and the audience seat dimming signal B w l
~S W rl to the dimmer Q.

FIG. 3 is a plan view showing an example of the arrangement of the operation panel 21 of the passenger seat circuit control section 5 according to this embodiment. The operation panel 21 includes a plurality of audience seat circuit faders F 1 and F 2 .
, =., F n and a master fader FO are arranged in parallel, and furthermore, a cross fader 6 is arranged adjacently. At the top of the crossfader 6, a pair of changeover switches 15a are provided.
, 15b are provided, and if one of them is selected and turned ON, either the switching signal zl or z2 shown in FIG. 2 is derived, and the switching circuit 7a or the switching circuit 7b is activated.
Either the corresponding fader CA or fader CB is connected to the audience seat circuit control section 5 side. At the same time, the switching circuit 7c operates to input the level Ca of the fader CA or the level Cb of the fader CB of the crossfader 6 to the third input terminal g3 of the audience seat dimming calculation section 5d. As a result, the calculation of the third equation is executed.

FIG. 4(1) and FIG. 4(2) are graphs showing the operation of this embodiment. FIG. 4(1) shows the dimming control for the audience seat circuit W and the stage circuit U, for example, from before the performance to the opening, and 4I21(2), for example, from the end of the performance to the closing time! 1 operation is shown. In both cases, the lighting on the audience side is used in conjunction with the stage direction. The operation will be described below with reference to FIGS. 112I to 3.

In FIG. 4(1), at time 10 before the start of the performance, the dimming level Y1 of the audience seat circuit W and the dimming level Y2 of the stage circuit U
are both 0. Also, one fader CA of the crossfader 6 is set to O (%), and the other fader CB is set to 100.
(assumed to be in position %).

In Figure 4 (1), before the performance begins, the audience seat circuit faders F1 to F1 are
n and master fader FO are operated, the dimming level Y1 of the audience seat circuit W rises in the direction of arrow 10, and at time t.
1, the dimming level v1 is reached, and thereafter the dimming level v1 is maintained as shown by the arrow 11 until the opening time t2. During this time, the dimming level Y2 of the stage circuit U is O.

Next, at opening time t2, the operator turns on the changeover switch 15b corresponding to the fader CB on the 100(%) side, a changeover signal z2 is derived, the contacts of the changeover circuits 7b and 7c are changed, and the contacts b2- Conductivity is established between c2 and contacts a3-c3,
The 100(%) side fader CB of the crossfader 6 is connected to the third input terminal g3 of the audience seat dimming calculation section 5d. On the other hand, the 0% side fader CA is connected to the multiplication circuit 13a. At this point, both the dimming level Y1 of the audience seat circuit W and the dimming level Y2 of the stage circuit U do not change.

Next, when the crossfader 6 is operated to perform a crossfade operation, the level data C set by the fader CA
a increases from O (%) to 100 (%), and the level data cb of the fader CB decreases to o (9g).The 9-seat dimming calculation section 5d executes the calculation of the third equation. , the dimming level Y1 of the audience seat circuit W decreases in the direction shown by the arrow 12, and conversely, the dimming level Y2 of the stage circuit U gradually increases from the O level in the direction of the arrow rnO. At time t3 when the operation ends, the dimming level Y2 of the stage circuit U reaches the level v2 set by the input operation section 11, and conversely, the dimming level Y1 of the audience seat circuit W becomes O.

In this way, at the opening of the show, a cross-fade operation is performed in which the lighting on the audience side gradually dims and the lighting on the stage side gradually brightens. If the switch ports 287a to 7C are turned back to 10 at time t3 when the cross-fade ends, the audience seat circuit W is thereafter disconnected from the cross fader 6 and placed under the control of the audience seat dimming control section 5.

Next, in FIG. 4(2), contrary to the above-mentioned 4rA(1), the stage circuit U is illuminated at the dimming level Y2 at level v3 until time tit, and the illumination level Yl at the audience seat circuit W is O. be. Also, crossfader 6 is set to fader CA at this point.
olg) and fader CB is located at 100 (%).

At the closing time tll, the operator sets the crossfader 6 to O(%
) is set to ONI, and the fader CA is connected to the audience seat dimming calculation unit 5d. After that, if you perform a crossfade operation using the crossfader 6, the dimming level Y of the stage circuit U
2 descends in the direction of arrow m3, and at the same time the stage side gradually becomes darker, the illumination level Y1 of the audience seat circuit W reaches arrow 1.
The light rises in the direction of 3, and the audience seats gradually become brighter.

At time t12 when the cross-fade ends, the dimming level Y2 of the stage circuit U becomes O, and the dimming level Y of the audience seat circuit W becomes O.
1 is the level of v4. In this way, a cross-fade operation is performed at the time of closing, and a dimming operation with excellent production effects is realized, similar to the time at the beginning. When the cross-fade movement ft is completed and the switches 41@7a to 7 are restored, the audience seat circuit W is disconnected from the cross fader 6, and the lighting on the audience seat side is thereafter controlled only by the audience seat dimming control unit 5. .

In this embodiment, the need for setting the dimming data of the audience seat circuit W by the audience seat circuit control section 5 and the stage circuit control section 4 is eliminated, and the operability is significantly improved.

Furthermore, the audience seat circuit W and the stage circuit U can be commonly placed under the control of the Talosph kneader 6, and control quality is greatly improved.

Effects of the Invention As described above, the light control device according to the present invention connects the crossfader to the first control device via the switching means and can also be used for dimming control of the first lighting load group. The lighting of the lighting load group smoothly transitions from the level set by the first control device to an arbitrary level, and it is possible to realize a cross-fade motion with extremely high performance. Furthermore, it is not necessary to store the dimming data of the first lighting load group in the second control device, and it is possible to realize a dimming device with excellent operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a light control device 1 according to an embodiment of the present invention, FIG. 2 (21 is a block diagram showing its electrical configuration, and FIG. 4121 is a graph showing the operation of this embodiment;
[21 is a block diagram showing the configuration of a conventional light control device 41,
FIG. 6 is a block diagram showing its electrical configuration. 1... Light control device, 2, 3... Light control unit, 4...
・Stage circuit control section, 5...Audience seat circuit control section, 5d...
- Audience seat dimming calculation circuit, 6 cross faders, 7a, 7b. 7c...Switching circuit, 11...Input operation section, 12a.
...Channel level storage unit, 12a, 12b...Memory buffer, 13...Cross fader calculation unit, 13
a. 13b...Multiplication circuit, 13c...Addition circuit, CA,
CB... Fader, FO... Audience side master fader, F1~Fn... Audience side dimming fader, Pi~Pn
, Q1~Qn...Dimmer, u1~uri...Stage lighting load circuit, ■~Wr+...Audience seat lighting load circuit

Claims (1)

[Scope of Claims] A light control device including a first control device that controls dimming of a first lighting load group and a second control device that controls dimming of a second lighting load group, wherein the first control device is , a first dimming data generating means for generating dimming data for the first lighting load group; and performing a fade operation on the dimming data and outputting first dimming control data for controlling the first lighting load group. The second control device includes a second dimming data generating means and a third dimming data generating means, each generating dimming data for each continuous time range of the second lighting load group. , a crossfader that converts the dimming control state from dimming data of one time segment to dimming data of another time segment, and a crossfader that converts the dimming control state from dimming data of one time segment to dimming data of another time segment; and a second calculation means that performs fade calculations with the dimming data and outputs second dimming control data for controlling the second lighting load group, and a fader output of at least one of the cross faders. A light control device comprising: switching means for switching between first calculation means and second calculation means.