JPH0451960B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a novel light control device that realizes a function of completely reproducing changes in light that have been automatically reproduced by time control according to a predetermined order.

BACKGROUND ART A conventional lighting load control device is as shown in FIG. In the first scene, fade control is performed by continuously changing the dimming start level l0 to the target dimming level l11 at a fade time T13 as indicated by reference numeral a. Next, in the second scene, fade control is performed from the dimming start level l11 to the target dimming level l12 in a fade time T14 as indicated by reference numeral b. At time t12, fade control is stopped, and from time t10 to time t12.
When an instruction is given to reversely execute the fade control up to, the fade control with reference mark b1, which is symmetrical to reference mark b, is performed at fade time T14, and then at fade time T15, indicated by reference mark a1, which is symmetrical to reference mark a. Fade control is performed. Here T15=T13
It is.

In such a dimming device, the target dimming level at the time when fade control is completed for all loads is stored for each scene, and all loads are fade-controlled in the opposite direction at the same time.
Unless fade control for one scene is completed, fade control for the next scene cannot be executed.

Therefore, we execute fade control for multiple loads, and when the fade control is not completed, we start fade control for the next scene that targets some of the loads that are currently being executed. Layered light control devices have recently come into use, which produce different changes in the light in several parts of the scene, rather than the entire scene changing uniformly. It has the effect of allowing This light control device is shown in FIG. 1st
In the scene, the first load and the second load perform fade control from the dimming start level l0 to the target dimming level l21 in a fade time T25 as shown by reference numeral c. Next, in the second scene, from the dimming level l23 to the target dimming level l for only the second load.
Fade control is performed up to 22 at fade time T27 as shown by reference numeral d. First, when an instruction to sequentially execute fade control is received at time t20, the first and second loads are set to the target dimming level l.
At time t21, fade control indicated by reference numeral c is executed, and at time t21, fade control indicated by reference numeral d is executed when only the second load approaches target dimming level l22. On the other hand, the first load continues to execute the fade control indicated by reference numeral c from time t21, reaches the target dimming level l21 at time t23, and changes the level l21 to reference numeral e.
Keep it as it is as shown in . At time t24, fade control is stopped, and from time t20 to time t24.
When an instruction is given to reversely execute the fade control up to
Fade control indicated by reference numeral e1 symmetrical to reference numeral c is performed, and thereafter, fade control indicated by reference numeral c1 symmetrical to reference numeral c is performed at fade T25. On the other hand, the second load moves from the dimming level l22 at the end of the fade control of the second scene to the dimming level l21 at the end of the fade control of the first scene at the fade time T28. The fade control indicated by the symbol f is performed, and then,
At the fade time T25, fade control indicated by reference numeral c1 is performed as in the case of the first load.

When the fade control of the first load among such multiple loads is not completed, in a light control device that performs the fade control of the second load overlappingly, an instruction is given to stop the fade control and execute it in reverse. Regarding the second load, each scene that has been executed up to now cannot be executed in complete reverse order, and therefore faithful changes in lighting cannot be obtained.

Purpose The purpose of the present invention is to solve the above-mentioned technical problem,
During fade control of one scene that targets multiple loads, fade control of the next scene can be executed overlappingly, and the executed fade control process can be faithfully reproduced in reverse. An object of the present invention is to provide a light control device.

Embodiment FIG. 1 is a block diagram of one embodiment of the present invention. The light control device 1 according to the present invention includes each lighting load L
1 and L2 dimming level data and fade time data, that is, the start time of the next scene of the fade control to be sequentially executed for the plurality of lighting loads L1 and L2, the lighting load to be controlled, the target dimming level, and the start time. An input circuit 2 that inputs the fade control time from the start dimming level to the target dimming level at the time, and stores each data from the input circuit 2, that is, responds to the output of the input circuit 2 and stores the input contents. A first storage circuit 3 capable of storing a plurality of scenes, and dimming data during sequential execution of fade control, that is, each lighting load L1, L2.
a second storage circuit 4 that stores the dimming level and elapsed time of fade control; and an instruction circuit 5 that instructs sequential execution, stop, and reverse execution of fade control;
It includes a processing device 6 that performs fade control on the loads L1 and L2 stored for each scene based on stored data from the first storage circuit 3 or the second storage circuit 4. The processing device 6 includes a dimming control circuit 7
, a switch S1 for selectively switching the stored data from the first storage circuit 3 and the second storage circuit 4 and inputting it to the dimming control circuit 7;
The dimming control circuit 7 includes a switch S2 for selectively supplying data output from the second storage circuit 4 to the second memory circuit 4, and a scene counter n for counting the number of sequentially executed scenes, and a scene counter n for counting the number of scenes to be executed in reverse. A reverse scene counter m for counting numbers, a timer 8 for reading the value of the elapsed time of fade control, that is, a timer 8 representing the elapsed time of fade control, and storage from the first memory circuit 3 or the second memory circuit 4. The value of the dimming level of each load L1, L2 is calculated based on the data, that is, each lighting load L is calculated based on the stored content from the first storage circuit 3 or the second storage circuit 4.
1 and L2.

The light control data for each scene from the input circuit 2 is stored in the first storage circuit 3 via the line 10, and this stored data is transferred to the line 11 and the switch S1.
and is input to the dimming control circuit 7 via line 12. On the other hand, the data stored in the second storage circuit 4 is
It is input to the dimming control circuit 7 via line 13, switch S1 and line 12. The line 11 is connected to one individual contact A of the switch S1, the line 13 to the other individual contact B, and its common contact C to the line 12, respectively. The common contact C of the switch S1 conducts with the individual contact A when a high-level signal is applied from the instruction circuit 5 via the line 14 to instruct sequential execution of fade control, thereby instructing reverse execution of fade control. When an instructing signal, for example, at a low level, is applied, conduction occurs with the individual contact B. The signal of the indicating circuit 5 is also applied to one input terminal of an AND gate 16 via a branch line 15. The other input terminal of the AND gate 16 has
For example, a fade control start signal and end signal, which are at a high level, are applied from the timer 8 via a line 17. AND gate 16 is connected to line 15,
17 are all at high level, that is, only when an instruction signal to sequentially execute fade control is given, and a fade control start signal and end signal are given, switch S2 is activated;
Make contacts D and E conductive.

Furthermore, when line 15 is at a low level, that is, when an instruction signal to perform reverse fade control is given, switch S2 is disabled and contacts D and E are disabled even when fade control start and end signals are given. It remains shut off.
Contact D of switch S2 is connected via line 18 to the second
It is connected to the memory circuit 4, and the contact E is connected to the line 19.
are connected to the output line 20 of the level calculation circuit 9 via a line 21, and to the timer 8 via a line 21, respectively. Therefore, when switch S2 becomes conductive, timer 8 and level calculation circuit 9
The time data and dimming level data for each of the loads L1 and L2 are stored in the second storage circuit 4.

The dimming level data from the level calculation circuit 9 is also input to the dimmer 23 from the output line 20 via the digital/analog conversion circuit 22, and from the output line 24 to the digital/analog conversion circuit 22.
5 to the dimmer 26, thereby making it possible to perform dimming control for each scene of the full loads L1 and L2. That is, the digital/analog conversion circuit 22, the dimmer 23, the digital/analog conversion circuit 25, and the dimmer 26 respond to the output of the level calculation circuit 9 and drive the lighting loads L1 and L2 in a dimming manner. constitutes a means.

FIG. 2 is a flowchart of an embodiment of the present invention.
FIG. 3 is a graph showing the relationship between the elapsed time T of fade control and each dimming level of the load.

The operation of the light control device according to the present invention will be explained with reference to FIG. The first memory circuit 3 stores, for example, the fade control time T5 of the first scene and the load L.
The start dimming level l0 and the target dimming level l3 of each of the first and second scenes are stored, and the start time t1 of the second scene, which is the next scene, the fade control time T7, and the target dimming level l4 of the load L2 are stored, respectively. Assume that it is remembered. From the start time t0 of the first scene to the start time t of the second scene
The time to 1 is shown in FIG. 3 as T6. First, in step r1, it is determined whether or not there has been an instruction to sequentially execute fade control, and when it is determined that there has been, the process moves to step r2, where the respective counts of the scene counter n and the reverse scene counter m are reset to zero, The process moves to step r3, and the count value of the scene counter n is incremented by one.
Next, the process moves to step r4, where the first memory circuit 3
Scene time data (fade time T5) and dimming level data (start dimming level l0, target dimming level l3) are read. If there is an instruction to sequentially execute fade control, common contact C of switch S1
and the individual contact A are brought into conduction, and the dimming data is provided from the first memory circuit 3 to the dimming control circuit 7. Next, the process moves to step r5, where a high level fade control start signal is applied from timer 8 to one input terminal of AND gate 16 via line 17.
As a result, contacts D and E of the switch S2 become conductive, and each dimming level and each elapsed time data of the loads L1 and L2 are stored in the second storage circuit 4. Next, the process moves to step r6, and the count value of the reverse scene counter m becomes 1.
Then, the process moves to step r7, and the starting dimming level l0 of the loads L1 and L2 is stored in the second storage circuit 4 as the reverse scene number 1. After that, the process moves to step r8, and the loads L1 and L2 are changed from the dimming start level l0 of the first scene to the target dimming level l.
3 with fade time T5, reference mark p in Figure 3.
Start executing the fade control indicated by .

Next, the process moves to step r9, where it is determined whether the second scene has started. When it is determined that the time calculated from the elapsed time by the timer 8 coincides with the time t1, and therefore the fade time T6 has elapsed, it is determined that the second scene has started, and the process returns to step r3 and the scene counter n is The count value is incremented by 1, and the above series of operations from steps r4 to r8 are repeated. That is, the dimming data of the second scene is read out from the first storage circuit 3 to the dimming control circuit 7, and at this time, the fade control start signal at a high level is output from the timer 8 to the AND gate 16.
This causes the switch S2 to conduct, and the fade elapsed time T6 is stored in the second storage circuit 4 as reverse scene number 1. Next, the count value of the reverse scene counter m is incremented by 1,
The common dimming level l1 of the loads L1 and L2 is stored in the second storage circuit 4 as a reverse scene number 2.
After that, the load L2 is set to the dimming level l1 of the second scene.
fade time T7 from to target dimming level l4
Then, the fade control indicated by reference numeral q in FIG. 3 is executed, and one load L1 continues to execute the fade control indicated by reference numeral q from the dimming level l1 toward the target dimming level l3. That is, when the sequential execution of fade control is instructed, the fade control is sequentially executed based on the contents stored in the first storage circuit 3.

When fade time T5 has elapsed, step r10
When it is judged that the execution of the first scene has finished, the process moves to step r11, and timer 8 starts line 1.
7 is given a high level fade control end signal, which makes the switch S2 conductive, and the second memory circuit 4 receives data from the timer 8 from time t1 to time t.
The fade elapsed time up to 2 is stored as reverse scene number 2. Next, the process moves to step r12, and when the count value of the reverse scene counter m is incremented by 1, the process moves to step r13, where the dimming level l3 of the load L1 and the dimming level l2 of the load L2 at time t2 are set to the reverse scene number 3. They are respectively stored in the second storage circuit 4 as .

Next, the process moves to step r14, where it is determined whether or not there has been an instruction to stop the fade control.If it is determined that there is no stop instruction, the process moves to step r15.
It is determined whether there is an instruction to perform the fade control in reverse, and if it is determined that there is no instruction to perform the reverse, the process returns to step r9 and repeats the above series of operations. That is, at step r10 and time t3,
When it is determined that the execution of the second scene has been completed, the fade control time T8 is stored from the timer 8 in the second memory circuit 4 as the reverse scene number 3 in step r11, and the process moves to step r12, where the reverse scene counter m is stored. The count value is incremented by 1, and in step r13, the dimming level l3 of the load L1 and the dimming level l4 of the load L2 at time t3 are stored in the second storage circuit 4 as a reverse scene number 4. In this way, the second storage circuit 4 sequentially stores, for example, each time data and each dimming level data at the start and end of the fade control for reverse scene numbers 1 to 4.

When it is determined in step r14 that there has been an instruction to stop fade control, the process moves to step r16.
It is determined whether there has been an instruction to perform reverse fade control. Time t at steps r15 and r16
When it is determined in step 4 that there is an instruction to perform reverse fade control, the dimming level of each lighting load L1, L2 and the elapsed time T9 of the timer 8 are stored in the storage circuit 4. Proceeding to step r17, the dimming data of reverse scene number 4 is first read out from the second storage circuit 4. At this time, the common contact C of the switch S1 is electrically connected to the other individual contact B, and the switch S2 is disconnected. Next, the process moves to step r18, and fade control is started using the time data and dimming level data of each load L1, L2 in reverse scene number 4. Next, move to step r19, reverse scene number 4
It is determined whether or not the fade time T9 has been completed. If it is determined that the fade time T9 has been completed, the process moves to step r20, and the count value of the reverse scene counter m is decremented by 1. Next, the process moves to step r21, where it is determined whether the count value of the reverse scene counter m has reached zero, and if it is not zero, the process returns to step r17.
The operations of steps r18→r20 are repeated until the count value of the reverse scene counter m becomes zero. As a result of this operation, the load L1 is subjected to fade control indicated by the reference mark ua, which is symmetrical to the reference mark u in FIG. fade control is performed. Also, regarding load L2, fade time T
At fade time T6, the fade control indicated by the reference mark qa, which is symmetrical to the reference mark q, is performed, and at fade time T6, the fade control indicated by the reference mark pa, which is symmetrical to the reference mark p, is performed, and the counter m is calculated by the inverse scene counter m. When the numerical value becomes zero, execution of dimming control for each load L1, L2 is completed. That is, when the reverse execution of the fade control is instructed, the temporal change process of the dimming level for the total lighting loads L1 and L2 during the execution of the fade control is reproduced in the reverse direction.

That is, in response to the output of the instruction circuit 5, when the instruction circuit 5 instructs execution of fade control, the processing device 6 reads out and provides the storage contents of the first storage circuit 3 to the level calculation circuit 9, and outputs the stored contents of the first storage circuit 3 for each scene. Lighting loads L1, L to be controlled in a scene that matches the start time and the time calculated from the elapsed time by timer 8 with reference to the start time of fade control execution.
The dimming level of No. 2 is fade-controlled based on the dimming level at the coincident time as the start dimming level, the target dimming level in the memory contents of the first storage circuit 3, and the fade control time. When starting the run, and each lighting load L1,L
2, the elapsed time represented by the timer 8 and the dimming level of the total lighting loads L1 and L2 are set to the second level.
When the instruction circuit 5 instructs the reverse execution of fade control by sequentially storing data in the memory circuit 4, the content of the second memory circuit 4 is given to the level calculation circuit 9 in the reverse order of the stored content, and the The elapsed time in the memory contents of the second memory circuit 4 is set as a fade control time, the dimming level in the memory contents of the second memory circuit 4 is defined as a target dimming level, and the dimming level at the time when the memory contents are read is started. Controls fade as dimming level.

In response to the instruction to perform fade control in this manner, the dimming data for each scene stored in the first storage circuit 3 is sequentially read out to the dimming control circuit 7 to perform fade control, and also to perform fade control for each scene. Load L1 at the start and completion of fade control for each
The time data and dimming level data of L2 are
When a reverse execution instruction is received following an instruction to stop the fade control, or when a reverse execution instruction is received during execution of the fade control, the fade control is sequentially stored in the memory circuit 4. An instruction to sequentially read the time data and dimming level data of the loads L1 and L2 stored during execution, and to stop the fade control after at least one scene has been executed from the time when the instruction to execute the fade control was given. Each of the loads L1 and L2 until the point in time or the point in time when a reverse execution instruction was given
By executing fade control for each load in the opposite direction, even when fade control for multiple loads L1 and L2 is executed consecutively or overlappingly, a reverse execution instruction is issued. In some cases, it becomes possible to faithfully reverse changes in lighting that have been implemented up to that point. Therefore, the stage
It is possible to improve the accuracy of automatic presentation performance in exhibition lighting in studios and the like. Further, it is not necessary to reset the reverse execution scene, and the time required for the operation can be shortened.

In the embodiment described above, the ON/OFF operation of the switch S2 was performed by the AND gate 16.
The ON/OFF operation may be performed using other configurations. Also, digital/analog conversion circuits 22, 25, dimmers 23, 26, and load L1,
It goes without saying that the number of units in L2 is not limited to the above embodiment.

Effects As described above, according to the present invention, the start time of each scene, the load to be controlled, the target dimming level, and the fade control time from the dimming level at the start time to the target dimming level are input. By storing the input contents and executing fade control based on the stored contents for each scene whose start time matches the time calculated by the timer, it is possible to control the fade of one scene. At the point when the control is not completed, it is possible to overlap the fade control of the next scene. Also, during execution of fade control, the dimming level values of all lighting loads and the elapsed time value of fade control are stored at the start and end of fade control, and the fade control is reversed based on the stored contents. By executing this, the scene changes of multiple lighting loads that have already been executed can be completely reversed and faithfully reproduced, thereby improving the accuracy of automatic performance performance. can.

Furthermore, even while the fade control is being executed, the instruction circuit can instruct the reverse execution of the fade control, making it possible to perform a variety of dimming effects. Since the level production circuit can perform fade control based on the start dimming level, target dimming level, and fade control time, data in the middle of fade control is unnecessary, reducing input data and the storage capacity of the memory circuit. can do.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG.
The figure is a flowchart of one embodiment of the present invention, Figure 3 is a graph showing the relationship between the elapsed time T of fade control and each dimming level of the load, and Figures 4 and 5 are for explaining the prior art. This is a diagram. 1... Light control device, 2... Input circuit, 3... First
Memory circuit, 4... Second memory circuit, 6... Processing device, 7... Light control circuit, 8... Timer, 9...
Level calculation circuit, 16...AND gate, S1,
S2...Switch, L1, L2...Lighting load.

Claims (1)

[Claims] 1. From the start time of the next scene of the fade control to be sequentially executed for the plurality of lighting loads L1 and L2, the lighting load to be controlled, the target dimming level, and the starting dimming level at the start time. an input circuit 2 for inputting a fade control time to reach the target dimming level; and a first storage circuit 3 capable of storing a plurality of scenes of the input contents in response to the output of the input circuit 2.
The content stored in the first storage circuit 3 is to perform fade control for continuously changing the dimming level of the lighting loads L1 and L2 from the dimming level at the start time to the target dimming level in a fade control time. Executing fade control sequentially based on
and an instruction circuit 5 for instructing reverse execution of the fade control, in which the temporal change process of the dimming level for all lighting loads L1 and L2 for which the fade control is executed sequentially is reproduced in the reverse direction; and when the fade control is executed sequentially. a second memory circuit 4 for storing the dimming level of each lighting load L1, L2 and the elapsed time of fade control; Level calculation circuit 9 that calculates and derives the dimming level values of loads L1 and L2
In response to the output of the timer 8 representing the elapsed time of fade control and the level calculation circuit 9, the lighting load L is
1, L2 dimming driving means 22, 2
3, 25, 26, and when the instruction circuit 5 instructs sequential execution of fade control, it reads out and gives the stored contents of the first memory circuit 3 to the level calculation circuit 9, and The dimming level of the lighting loads L1 and L2 to be controlled in the scene that coincides with the scene start time and the time calculated from the elapsed time by the timer 8 with reference to the start time of sequentially executing fade control is set as the start dimming level. When fading control is performed based on the dimming level at the coincident time as a level, the target dimming level in the memory contents of the first storage circuit 3, and the fade control time, and when sequential execution of fade control is started, and each illumination When fade control should be ended or changed for either of the loads L1 and L2, the elapsed time represented by the timer 8 and the dimming levels of all the lighting loads L1 and L2 are sequentially stored in the second storage circuit 4. However, when the instruction circuit 5 instructs reverse execution of fade control, the level calculation circuit 9
The memory contents of the second memory circuit 4 are given in the reverse order of the memory contents, the elapsed time in the memory contents of the second memory circuit 4 is set as fade control time, and the fade in the memory contents of the second memory circuit 4 is given to The dimming level stored at the start of sequential control execution is set as the target dimming level,
A processing device 6 that performs fade control using a dimming level at the time when the stored contents are read out by instructing reverse execution as a starting dimming level.