JPH0329155B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a light control device for controlling the light of a plurality of illumination lights.

Background Art In conventional light control devices, a pulse signal corresponding to the operation of an input means is generated from an encoder, an up-down counter is operated according to the rising or falling edge of the pulse, and data corresponding to the counted number is output. In addition to feeding the control device,
This output control device adds the current dimming level data and stores the added dimming level data in the memory, and converts the dimming data into a phase control signal for each circuit. The phase control element controls the power from the AC power supply applied to each lighting load by the phase control signal from the output control device. This allows the lighting load to be dimmed at each dimming level. With such a dimmer, two lighting lights L1L2
The control operation when performing dimming control will be explained based on FIG. 7. The memory capacity in this prior art ranges from 0 (data corresponding to turning off the light) to 100.
(data corresponding to all illumination lights) are used. Line g in Figure 7 1
1 indicates a change in the dimming level of the illuminating lamp L1, and line g2 indicates a change in the dimming level of the illuminating lamp L2. Before time t1, the illumination lights L1 and L2 are as shown in FIG.
The dimming level data of lighting lamp L2 is 75, and the dimming level data of lighting lamp L2 is 25.
1 is lit at an illumination level of 75%, and illumination lamp L2 is lit at an illumination level of 25%. In this state, when the dimming level is increased as shown in FIG. 72 from time t1 to time t4, the lighting lights L1 and L2 maintain the dimming level difference of 50%. , the brightness increases, and at time t2, the dimming level of the illumination lamp L1 reaches 100%, and the illumination lamp L1 becomes fully lit. At this time, the dimming level of the illumination lamp L2 is 50. Since the memory storage is up to 100, the dimming level data of the lighting lamp L1 remains at 100 despite the operation to increase the dimming level after time t2. On the other hand, the illumination light L2 has dimming level data of 100 at time t3, and is in a fully lit state. From time t3 to time t4, Fig. 7 2
Even though the dimming level has been increased as shown in , the dimming level data of the illuminating lamp L1 and the illuminating lamp L2 remains at 100 and has stopped. Thereafter, as shown in FIG. 7-3 at time t5, when the dimming level reduction operation is performed until time t6, both illumination lights L1 and L2 are at the same dimming level as shown in FIG. 7-1. The light is gradually dimmed. Then, at time t6, the dimming level data of illumination lights L1 and L2 are both 50, and the dimming level is 50.
is lit.

Next, referring to FIG. 8, in the same way as described above, when the illuminating lamp L1 has level data of 75 and the dimming level data of illuminating lamp L2 is 25, from time t7 to time
As shown in FIG. 83 at time t8, when the dimming level is decreased, the dimming levels of illuminating lights L1 and L2 both decrease, and at time t8, the dimming level of illuminating lamp L2 is reduced. It becomes 0. After that, as shown in FIG. 8, the dimming level reduction operation is performed until time t9, but since the memory capacity is up to 0, the dimming level data of lighting lamp L2 remains at 0 and stops. are doing. In addition, the lighting lamp L1 is set at the end of the dimming level reduction operation, that is, at time t9.
At time t9, the dimming level data stops at 25. After that, at time t10, the eighth
As shown in FIG. 2, if the operation to increase the dimming level is performed until time t11, the illuminating lamp L1 and the illuminating lamp L
2, the dimming level increases, and at time t11
That is, at the end time of the operation to increase the dimming level, the dimming level data of the illuminating lamp L1 becomes 75, and the dimming level data of the illuminating lamp L2 becomes 50. Therefore, the dimming level difference between the illuminating lamp L1 and the illuminating lamp L2 remains at 25, and they continue to be lit after time t11.

In such a conventional dimming control method, when a plurality of illumination lights are controlled simultaneously, a phenomenon occurs in which the level difference between the illumination lights is different after the control than before the control. This caused operational inconvenience.

Other prior art uses a memory that can store dimming data up to -100 or -200. The actual dimming level starts from 0.
Up to 100. The operation of such prior art dimming control is shown in FIG. Before time t1, the dimming level data of the illuminating lamp L1 is 75, and the dimming level data of the illuminating lamp L2 is 25.
When the dimming level is increased as shown in FIG. 92 at time t1, the lighting lights L1 and L
2, the dimming level is increased, and at time t2, the illumination lamp L1 is fully lit. At this time, the dimming level data of the illuminating lamp L1 is 100, and the dimming level data of the illuminating lamp L2 is 50. then time
At t3, the dimming level data of lighting lamp L2 also becomes 100,
All lights are on. Furthermore, the dimming level is increased until time t4, and therefore lighting lamp L1
The dimming level data of the lighting lamp L2 is 180, and the dimming level data of the lighting lamp L2 is 130. Thereafter, at time t5, when the dimming level is decreased as shown in FIG. 9, the illuminating lamp L1 and the illuminating lamp L
Although the dimming level data of 2 is decreasing,
The illumination level of both illumination lights L1 and L2 remains 100, that is, they remain fully lit. After that, at time t6, the dimming level data of lighting lamp L2 becomes 100 or less,
Therefore, the dimming level of the illumination lamp L2 begins to decrease. On the other hand, the illumination level data of the illumination lamp L1 becomes 100 at time t7, so the dimming level begins to decrease after time t7. Then, at time t8, the illumination light level of the illumination light L2 is 0, that is, the illumination light is turned off, and at this time, the dimming level data is 50 for the illumination light L1 and 0 for the illumination light L2. After that, the dimming level data of the illuminating lamp L2 decreases, but the dimming level of the illuminating lamp L2 remains at 0, that is, remains in the off state. On the other hand, the illumination light L1 is turned off at time t9, that is, the illumination level becomes 0. At this time, the dimming level data of the illuminating lamp L2 is -50, and the dimming level data of the illuminating lamp L1 is 0. After this Figure 9 3
As shown, the dimming level data of the illumination lights L1 and L2 decreases until time t10 when the dimming level data decreasing operation ends. The dimming level data of the lighting lamp L1 at this time t10 is
1 is -25, and illumination lamp L2 is -75.
Thereafter, as shown in FIG. 92 at time t11, when the dimming level is increased, the dimming level data increases, but the lighting lamp L1
The dimming level of the illumination light L2 is maintained at 0, that is, the light is turned off. At time t12, the dimming level data of the lighting lamp L1 becomes 0, and after that,
The dimming level of the illumination lamp L1 gradually increases.
On the other hand, in the illumination lamp L2, the dimming level data becomes 0 at time t13, and thereafter it is lit at a dimming level corresponding to the dimming level data, and thus at the time
The dimming level continues to increase until t14, that is, the end of the dimming level increasing operation shown in FIG. 92.
At this time, the dimming level difference between the illuminating lamp L1 and the illuminating lamp L2 is 50, which is no different from before the dimming control.

In such dimming control in the prior art, unlike the prior art described above, the dimming level difference between the plurality of illumination lights does not change. However, if the dimming level is increased more than necessary, there will be a period W1 from the start of the subsequent dimming level decreasing operation until the dimming level actually changes.
Furthermore, if the reduction operation is performed more than necessary, there is a period W2 from when the subsequent operation to increase the dimming level is started until the dimming level actually changes, resulting in poor operability.

Purpose An object of the present invention is to perform dimming control while maintaining a constant difference in the dimming levels of a plurality of lighting lights, and to prevent the dimming level from being increased or decreased more than necessary. The object of the present invention is to provide a dimming device that can immediately change the dimming level in response to a subsequent decreasing or increasing operation.

Embodiment FIG. 1 is a block diagram showing the electrical configuration of a light control device having the basic configuration of the present invention. The amount of operation of the operation wheel 1, which serves as an input means for performing a fade operation, is given to an encoder 2, and the encoder 2 outputs to a counter 3 an up-down signal for raising or lowering the dimming level of the illumination lights L1 to Ln. The counter 3 outputs dimming level data D1 corresponding to the up-down signal to an output control device 5 in response to an output from a CPU (central processing unit) 4. The output control device 5 performs arithmetic processing on the current dimming level data D2 from the memory 6 and the data D1 from the counter 3, converts it into a phase control signal for each circuit, and outputs the data to the phase control elements T1 to T1 of each circuit.
Give to Tn. The phase control elements T1 to Tn control each lighting lamp L according to the phase control signal from the output control device 5.
Controls the power from AC power supply E given to 1 to Ln. Thereby, the illumination lights L1 to Ln are dimmed at each dimming level.

The memory 6 stores dimming level data -100 to +
It has store areas M1 to M300 corresponding to 200. Here, dimming level data 0 means lighting lamp L
1 to Ln are shown in the off state, and dimming level data 100 shows the lighting state of all the illumination lights L1 to Ln. Therefore, the actual dimming level is 0~
100, and on the other hand, the memory 6 can store dimming level data D3 from -100 to +200. In addition, dimming level data D3
is stored from the output control device 5 in the storage area of the memory 6 corresponding to the data D3.

FIG. 2 is a flowchart showing the operating state of dimming control of the dimming device shown in FIG. step n1
Then move to step n2 and read the data of counter 3.
As D1 is read, counter 3 is reset. Thereafter, the process moves from step n2 to step n3, where it is determined whether or not an operation to increase the dimming level has been performed.If an operation to increase the dimming level has been performed, the process moves to step n4, and the dimming level is set to the lowest among the lighting lights L1 to Ln. It is determined whether or not all of the illumination lights are on. If all of the illumination lights are not on, the process moves to step n5, and the dimming level data is changed for all of the illumination lights L1 to Ln.
That is, the dimming level data D1 and the dimming level data D2 are added to calculate the changed dimming level data D3. It is stored in a storage area of the memory 6 corresponding to this dimming level data D3, and a phase control signal corresponding to this data D3 is derived to phase control elements T1 to Tn. after that,
The process moves from step n5 to step n6, where it is determined whether or not the process has ended.

In step n4, if the dimmest illumination light among the illumination lights L1 to Ln is fully lit, the process moves to step n6. In addition, in step n3, if a significant level reduction operation is performed using this data D3, the process moves to step n7, and the illumination lights L1 to
It is determined whether or not the illumination lamp set to be the brightest in Ln is turned off, and if it is turned off, the process moves to step n6. In addition, if the brightest lighting lights L1 to Ln are not turned off, the step
The process moves from step n7 to step n8, and the dimming level data is changed for all of the illumination lights L1 to Ln.
That is, from the dimming level data D2 to the dimming level data
Calculate dimming level data D3 by subtracting D1.
Thereafter, the process moves to step n6, where it is determined whether or not the process has been completed. If the process is completed at step n6, the process moves to step n9 and all operations are completed. If the process is not completed at step n9, the process returns to step n2 and the same series of operations is repeated.

FIG. 3 is a graph showing the dimming control operation of the dimming device shown in FIG. The dimming control operation will be further described in detail with reference to FIG. In addition, for the sake of simplicity of explanation, two illumination lights L1 and L2 will be explained. In FIG. 3, line g3 shows changes in the dimming level of illumination lamp L1, and line g
4 indicates a change in the dimming level of the illumination lamp L2. It is assumed that the dimming level data of the illuminating lamp L1 is 75 and the dimming level data of the illuminating lamp L2 is 25 before time t1. Therefore, the illuminating lamp L1 is lit at a dimming level of 75%, and the illuminating lamp L2 is lit at a dimming level of 25%. In this state, as shown in FIG. 3, time t1
When the dimming level is increased from t4 to time t4, the dimming data D1 and the current dimming data D2
The output control device 5 calculates the dimming data D3 obtained by adding up the dimming data D3, and outputs a phase control signal corresponding to the dimming data D3 to the phase control elements T1,
As a result, the illumination lights L1 to L2 increase as shown by lines g3 and 4 in FIG. 3, and at time t2, the illumination light L1 reaches the dimming level.
100, that is, all lights are on. After that, the illuminating lamp L1 maintains the fully lit state, and the dimming level of the illuminating lamp L2 increases. Note that the dimming level data of the illumination lamp L1 increases as shown by the broken line in FIG. 31. In this state, at time t3, the dimming level of the illumination lamp L2 becomes 100%, that is, the illumination lamp L2 becomes fully lit. The dimming level data at this time is 150 for lighting lamp L1, and for lighting lamp L2.
It is 100. Although the dimming level is increased from time t3 to time t4, the dimming level data increases because, as mentioned above, the dimming light among all the lighting lights is fully lit. Not done. After that, at time t5, FIG.
As shown in FIG.
As shown in , the dimming level begins to decrease immediately from time t5. At the same time, the dimming level data of the illuminating lamp L1 also begins to decrease, and the dimming level of the illuminating lamp L1 begins to decrease from time t6. After that, at time t7, the illumination light L2 becomes the dimming level 0, that is, the light is turned off. The dimming level data at this time is 50 for the illuminating lamp L1 and 0 for the illuminating lamp L2. Although the dimming level data decreases thereafter, the illumination lamp L2 remains in the off state. Further, the dimming level of the illumination lamp L1 decreases. Then, at time t8, the illumination light L1 is also turned off. The dimming level data at this time is 0 for the illuminating lamp L1, and -50 for the illuminating lamp L2. time t8
From time t9 to time t9, the dimming level is reduced as shown in FIG. 3, but as mentioned above, the light set to be the brightest out of all the lights is turned off. Therefore, the dimming level data of the illumination lights L1 and L2 is not decreased, and the dimming level data is maintained.

After that, from time t10 to time t12,
As shown in FIG. 32, when the dimming level is increased again, the illumination lamp L1 immediately starts lighting from time t10. At the same time, lighting lamp L2
The dimming level data increases from -50, and the lighting lamp L1 starts to light up from time t11. Then, the operation is stopped at time t12. At this time, the dimming level difference between lighting lamp L1 and lighting lamp L2 is 50
, which is the same as before dimming control.

In this way, in this configuration, when the illuminating lamp L1 and the illuminating lamp L2 are dimmed simultaneously, the dimming level difference is maintained constant. Therefore, no matter how many times the dimming level is increased or decreased, the atmosphere of the lighting effect does not change drastically, making it easy to operate.

Furthermore, if the dimming level is increased more than necessary, when the dimming level is subsequently decreased, the dimming level is immediately reduced. Similarly, when the dimming level is decreased more than necessary, when the dimming level is subsequently increased, the dimming level is immediately increased. Since the dimming level is changed instantly in this way, it is easy to understand what kind of dimming will be achieved by the degree of operation, which makes the operation easier.

Furthermore, dimming control can be easily performed without performing unnecessary program operations, and other processing can be performed quickly.

FIG. 4 is a block diagram showing the electrical configuration of an embodiment of the present invention, and FIG. 5 is a flowchart showing its dimming control operation. This embodiment is similar to the previously described configuration, and corresponding parts are provided with the same reference numerals. The operation wheel 1 and the encoder 2 constitute a dimming signal generation means, and the CPU 4 and the output control device 5
constitutes a processing device. It should be noted that the console is equipped with a reset switch SW1 for selecting whether to validate the dimming level data stored in the memory 6 or to give priority to the current dimming level. A command signal from this reset switch SW1 is given to the CPU4. The output control device 5 receives a signal from the CPU 4 and performs a control operation corresponding to the selection of the switch SW1, as will be described later. Referring to FIG. 5, proceeding from step m1 to step m2, it is determined whether or not a dimming level difference is required, that is, reset switch SW1
It is determined whether or not the reset switch SW1 has been pressed, and if the reset switch SW1 has been pressed, the process moves to step m3 and the dimming level data in the storage area of the memory 6 is stored as 0% or less or 100% or more. are corrected to 0% or 100%, respectively. Then, proceed to step m4 and read the dimming data D1 corresponding to the count from up-down counter 3.
is read, and at the same time the up-down counter 3
is reset. Next, the process moves from step m4 to step m5, where it is determined whether or not an operation to increase the dimming level has been performed using the input means 1. If an operation to increase the dimming level has been performed, the process moves from step m5 to step m5.
Moving to m6, the dimming level data is changed for all illumination lights L1 to Ln. That is, counter 3
The changed light control level data D3 is calculated by adding the light control data D1 from 2003 to the current light control level data D2 stored in the memory 6.

When the dimming level is decreased in step m5, the process moves from step m5 to step m7, and the dimming level is changed for all the illumination lamps L1 to Ln. That is, the dimming level data D1 is subtracted from the dimming level data D2 to calculate changed dimming level data D3. Then step m8
The process moves to step m9, where it is determined whether or not the process has ended, and if it has, the process moves to step m9 and the control operation is completed. If the process is not completed at step m8, the process returns to step m2, and the series of operations from step m2 to step m8 is repeated to perform dimming control.

FIG. 6 is a graph showing the dimming control operation of the embodiment shown in FIG. The operation of dimming control will be described in further detail with reference to FIG. In order to simplify the explanation, the dimming control of the two illumination lights L1 and L2 will be explained. Before time t1, the illumination level of illumination lamp L1 is 75%, and the illumination level of illumination lamp L2 is 75%.
It is 25%. In this state, from time t1 to time t3
During this period, as shown in FIG. 6, when the dimming level is increased, the dimming level of the illuminating lamp L1 and the illuminating lamp L2 increases, and at time t2, the illuminating lamp L1 reaches the line level. As shown by g3, the dimming level is 100, that is, the entire lighting state is reached. Thereafter, the dimming level data of the illuminating lamp L1 increases, and at the same time, the dimming level of the illuminating lamp L2 also increases as shown by line g4. and the time
At t3, the illumination lamp L2 is fully lit. The dimming level data at this time is 150 for lighting lamp L1.
and is 100 for illumination lamp L2. then time
From t4 to time t7, as shown in FIG. 6, the dimming level is decreased. At this time, as shown in FIG. 6, since no dimming level data reset request has been made, the dimming level of the illumination lamp L2 immediately decreases from the dimming level of 100%. However, in the illumination lamp L1, the dimming level data is assumed to be effective at 150%, and decreases from 150%, and at time t5, the dimming level data becomes 100, and after time t5, the dimming level begins to decrease.

Thereafter, at time t6, the dimming level of lighting lamp L2 becomes 0%, that is, the light is turned off, and then at time t7
The dimming level data decreases until On the other hand, the illumination light L1 is turned off at time t7. The dimming level data at this time is 0 for the lighting lamp L1,
In the illumination lamp L2, it is -50. Thereafter, as shown in FIG. 6, the reset switch is turned on at time t8.
When SW1 is operated, the dimming level data of the illumination lights L1 and L2 is corrected to 0 as shown in FIG. 61. Then, as shown in FIG. 6, the dimming level is increased from time t9, and as a result, the dimming levels of the illumination lights L1 and L2 are increased at the same level from time t9.

In this way, whether to enable the level difference that does not appear in the current dimming level, that is, the internal storage data, or
You can decide on the spot whether to give priority to the current dimming level or not and select it using reset switch SW1, giving you more flexibility in operation.

In the above embodiment, two illumination lights L1 and L2 were explained, but a plurality of illumination lights L1 to Ln
The same dimming control is also performed for.

Effects of the Invention As described above, according to the present invention, it is possible to perform dimming control while maintaining a constant difference in the dimming levels of a plurality of lighting lights, and to increase (or decrease) the dimming level. Even if it is performed more than necessary, it is possible to immediately change the dimming level in response to a subsequent decreasing operation (or increasing operation). Therefore, no matter how many times the dimming level is increased or decreased, the atmosphere caused by the illumination does not change drastically, making it easy to operate. In addition, if you increase or decrease the dimming level more than necessary, the dimming level will change immediately in response to subsequent dimming level decreases or increases, so it is difficult to determine how much the dimming level should be manipulated. By adding this, you can understand what kind of dimming level will be achieved, making it easier to operate. Further, there is no need to perform special program operations, and other processing can be performed quickly.

In addition, a reset switch is provided, and by operating the reset switch, the stored contents of the memory corresponding to the dimming level of each lighting fixture can be changed to correspond to the actual dimming level at the time of operation. Allows for more flexibility in operation.

Furthermore, in response to the up-down signal from the dimming signal generation means corresponding to manual operation, the dimming level of each lighting fixture changes up or down according to the signal given from the up-down counter to the processing device. and changes in the dimming level directly correspond, making it easy to operate.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the electrical configuration of the light control device having the basic structure of the present invention, FIG. 2 is a flowchart showing the dimming control operation state of the light control device having the structure shown in FIG. The figure is a graph showing the light control operation of the light control device according to the embodiment shown in the first figure, FIG. 4 is a block diagram showing the electrical configuration of the light control device according to the embodiment of the present invention, and FIG. A flowchart showing the dimming control operation of the dimming device of the illustrated embodiment, FIG.
A graph showing the dimming control operation of the dimmer of the illustrated embodiment, FIGS. 7 and 8 are graphs showing the dimming control operation of the prior art, and FIG. 9 is a graph showing the dimming control operation of the other prior art. This is a graph showing. 1... Input means, 2... Encoder, 3... Counter, 4... CPU, 5... Output control device, 6
...Memory, M1 to M300...Store area, T
1~Tn...Phase control element, L1~Ln...Lighting lamp, E...Power source.

Claims (1)

[Claims] 1. In a dimming device that controls the dimming of a plurality of lighting devices with a predetermined difference in dimming level, an up-down device for changing the dimming level up or down in response to manual operation. dimming signal generating means 1 and 2 for deriving signals; and an up-down counter 3 for deriving a signal for changing the dimming level in response to the up-down signals from the dimming signal generating means 1 and 2; Drive means T ₁ , T ₂ , ..., Tn for controlling each lighting device within a range of a predetermined dimming level; a range of the dimming level, and a range of the dimming level above and below the dimming level; , a reset switch SW1, and processing devices 4 and 5, each of which has a capacity to store data added to the memory 6, and a reset switch SW1. calculates the content of the output level with the signal derived from the up-down counter 3, stores the changed dimming level in the memory 6, and sets the stored content of the memory 6 to the minimum dimming level within the range. If the value is less than the above range, the dimming level of the lighting equipment is set to the minimum dimming level, and when the contents stored in the memory 6 are within the above range, the dimming level of the lighting equipment is set to that dimming level, and the dimming level of the lighting equipment is set to the minimum dimming level. When the stored contents of 6 exceed the maximum dimming level within the range, the dimming level of the lighting equipment is set to the maximum dimming level, and the signal from the up-down counter 3 increases the dimming level. In this case, after the lowest dimming level among all the lighting fixtures reaches the maximum dimming level within the range, the stored contents of memory 6 for all lighting fixtures are stops increasing, and when the signal from the up-down counter 3 decreases the dimming level, the dimming level that is set to the highest among the dimming levels of all the lighting equipment becomes the lowest dimming level within the range. After the dimming level has been reached, the contents stored in the memory 6 for all lighting devices stop decreasing, and when the reset switch SW1 is operated, the contents stored in the memory 6 are updated to each level at the time of the operation. A dimming device characterized by changing the dimming level of a lighting fixture.