JP2023088226A - Dimming control system for performance - Google Patents

Abstract

To enable the expression of a smooth luminous intensity change and a precipitous and substantial luminous intensity change in light emission of a light-emitting part at respectively appropriate timings.SOLUTION: In a dimming control system 1 for performance including a dimmer 2 for transmitting a dimming control signal, and a lamp body 3 for receiving the dimming control signal, the lamp body 3 includes a light-emitting part 33, a light emission control part 31 for generating and outputting a light emission drive signal from the dimming control signal, and a light emission drive part 32 for driving the light-emitting part 33 in accordance with the light emission drive signal, the light emission control part 31 generates and outputs a light emission drive signal for performing gradual dimming to a dimming command value in the case that a change amount to the preceding value of the dimming command value of the dimming control signal is equal to or less than a change reference value, and generating and outputting a light emission drive signal for performing dimming that makes change to the dimming command value or more at a time in the case that the change amount to the preceding value of the dimming control value of the dimming control signal exceeds or is equal to or more than the change reference value.SELECTED DRAWING: Figure 3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production lighting control system suitable for production applications such as television studios, stages, and illuminations.

Conventionally, as a dimming control system suitable for production use, a plurality of lamps having light-emitting parts such as LEDs are connected to a dimming device, and a dimming control signal is sent from the dimming device to each lamp. A light control system is known that generates a light emission drive signal based on a light control command value of a light control signal and causes a light emitting unit to emit light with the light emission drive signal. In addition, in such a dimming control system, a system has been proposed in which the luminous intensity of the light-emitting part of the lamp body is changed stepwise to a predetermined dimming command value, thereby smoothing the change of light and suppressing the viewer's sense of incongruity. (See Patent Documents 1 to 4).

JP 2011-91024 A JP 2011-113794 A Japanese Patent No. 5008463 Japanese Patent No. 4790710

By the way, in a dimming control system suitable for performance applications, while a smooth change in the light intensity of the light emitted from the light emitting unit is required, there are many cases where a sharp and large change in the light intensity such as blinking is required. Therefore, there is a demand for a production lighting control system that can express a smooth change in light intensity and a steep and large change in light intensity at appropriate timings.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and provides a lighting control system for performance that can express both a smooth luminous intensity change and a steep and large luminous intensity change of light emitted from a light emitting unit at appropriate timings. intended to

A production lighting control system according to the present invention is a production lighting control system comprising a lighting device for transmitting a lighting control signal and a lamp for receiving the lighting control signal. a light emission unit; a light emission control unit for generating and outputting a light emission drive signal from the dimming control signal; and a light emission drive unit for driving the light emission unit in accordance with the light emission drive signal, the light emission control unit generates the light emission drive signal for stepwise dimming up to the dimming command value when the amount of change from the previous value of the dimming command value of the dimming control signal is less than or less than the change reference value. and when the change amount of the dimming command value of the dimming control signal from the previous value exceeds or exceeds the change reference value, dimming is performed by changing the dimming command value or more at once. It is characterized by generating and outputting the light emission drive signal.
According to this, when the amount of change of the dimming control signal from the previous value of the dimming command value is small, a smooth luminous intensity change is expressed, and is large, and when an expression in which the light changes rapidly is required, a sharp and large change in luminous intensity can be expressed. Furthermore, in the process of stepwise dimming up to the target dimming command value, the light emission timing corresponding to the target dimming command value is usually delayed by the time corresponding to the transmission cycle of the dimming control signal. When a dramatic change in light is required, it is often the case that a dramatic effect that flashes in time with other dramatic elements is required. It becomes difficult to produce a light emission production expression that matches the timing with other production elements. In response to this, by providing both a configuration in which the light emission corresponding to the target dimming command value is reached by stepwise dimming and a configuration in which the light emission is reached at once, the timing is matched with such other production elements. The effect expression of light emission can also be performed smoothly. That is, a smooth luminous intensity change and a steep and large luminous intensity change of the light emitted from the light emitting section can be represented at appropriate timings.

The lighting control system for production of the present invention is characterized in that a predetermined intermediate value between the minimum value and the maximum value of the lighting control command value is set changeably in the light emission control unit as the change reference value. and
According to this, it is possible to easily set a change reference value that serves as a reference for distinguishing a smooth luminous intensity change and a steep and large luminous intensity change of the light emitted from the light emitting unit. Also, by setting the change reference value to be changeable, it is possible to adjust the degree of priority given to smoothness or sharpness of light emission according to the characteristics of the presentation.

In the lighting control system for performance of the present invention, the light emission control unit continues the difference between the maximum and minimum lighting control command values among the predetermined number of lighting control command values that are most recent from the lighting control command value at an arbitrary time. corresponding to the difference between the maximum and minimum dimming command values at the specific time as the change reference value to be compared with the amount of change from the previous value of the light control command value of the light control signal at the specific time. It is characterized by the fact that a value that
According to this, an appropriate change reference value can be set dynamically in real time. That is, in the actual performance, the dimming command value may fluctuate only within a relatively narrow range, and the dimming command value of the dimming control signal is generated in real time according to the progress of the performance. In many cases, it is difficult to know the dimming command value and its fluctuation range in advance. Smooth changes in light intensity and sharp and large changes in light intensity can be displayed at appropriate timings.

In the performance dimming control system of the present invention, when the light emission control unit generates and outputs the light emission drive signal for stepwise dimming up to the dimming command value, from the completion time of stepwise dimming When the timing to emit light with the dimming command value of the next dimming control signal received from the dimming device before comes, priority is given to light emission based on the dimming command value of the next dimming control signal at the timing. It is characterized by generating and outputting the light emission drive signal so as to do so.
According to this, even if the time interval between transmission and reception of the dimming control signal suddenly changes and becomes short, it is possible to minimize the change from the intended light emission state of the lamp body and adapt to it.

In the lighting control system for performance of the present invention, the lighting body is provided with an auxiliary light emitting section and an auxiliary light emitting driving section for driving the auxiliary light emitting section in response to an auxiliary light emitting driving signal, and the light emission control section includes: When generating and outputting the light emission drive signal for performing dimming for changing the light emission unit to the light control command value at once, the auxiliary light emission drive signal for driving the auxiliary light emission unit is sent to the auxiliary light emission drive unit. It is characterized by inputting.
According to this, when lighting for a production purpose requires an expression in which the light changes rapidly, the light-emitting part of the lamp body is caused to emit light so as to express a steep and large change in luminous intensity, and at the same time, the lamp It is possible to make the auxiliary light-emitting part of the body emit light to emphasize the sharp and large change in light intensity. In addition, by providing an auxiliary light-emitting section separately from the light-emitting section that emits light simultaneously with the light-emitting section when a steep and large change in luminous intensity is expressed, for example, the auxiliary light-emitting section emits light in a different color from the light emitted by the light-emitting section. Diversification of lighting can be achieved.

In the lighting control system for presentation of the present invention, when the light emission control unit generates and outputs the light emission drive signal for performing light control to change the light emitting unit to the light control command value or more at once, the The driving of the light emitting unit is controlled so as to emit light whose luminous intensity is increased by a predetermined ratio from the luminous intensity corresponding to the dimming command value.
According to this, when an expression in which light suddenly changes is required for lighting for production purposes, the light emitting unit is caused to emit light so as to express a steep and large change in luminous intensity, and at the same time, the dimming command value By causing the light emitting unit to emit light whose luminous intensity is increased at a predetermined rate from the luminous intensity corresponding to , it is possible to further emphasize a steep and large luminous intensity change.

In the lighting control system for performance of the present invention, a notification unit that notifies the lighting unit of setting parameter adjustment of the lighting unit, and a notification operation control unit that controls the operation of the notification unit so as to perform notification. provided, wherein the light emission control unit generates and outputs a step determination signal corresponding to stepwise dimming when generating and outputting the light emission drive signal for stepwise dimming, and outputs the signal to the notification operation control unit; Alternatively, when generating and outputting the light emission drive signal for performing dimming that changes at once, a sudden change determination signal corresponding to the dimming that changes at once is generated and output to the notification operation control unit, and the notification operation control The control unit controls the operation of the notification unit so as to perform notification according to the step determination signal or the sudden change determination signal.
According to this, for example, the division number N for the time interval T of transmission and reception of the dimming control signal, a variable settable constant to be multiplied by the maximum value of the dimming command value of the dimming control signal to obtain the change reference value Parameters such as _CG , which are set for each lighting unit, can be easily and appropriately adjusted and set using the notification of the notification unit corresponding to the gradual determination signal or sudden change determination signal of the luminous intensity of the lighting unit as a reference. can.

According to the production light adjustment control system of the present invention, a smooth luminous intensity change and a steep and large luminous intensity change of the light emitted from the light emitting unit can be displayed at appropriate timings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a production lighting control system according to an embodiment of the present invention; FIG. 2 is a block diagram showing the configuration of a lighting body in the production lighting control system of the embodiment; 4 is a flow chart showing signal processing of lamp bodies in the production lighting control system of the embodiment. 5 is a graph for explaining an example of processing for lighting dimming command values of lighting bodies in the production dimming control system of the embodiment; 5 is a graph showing changes over time of the light emission drive signal corresponding to the processing example of FIG. 4; 5 is a graph for explaining another example of processing for the dimming command value of the lighting body in the production dimming control system of the embodiment. 7 is a graph showing temporal changes in the light emission drive signal corresponding to the processing example of FIG. 6; The block diagram which shows the structure of the lamp of the 1st modification in the lighting control system for production|presentation of embodiment. A flow chart showing the signal processing of the lamp body of the first modified example. A flowchart showing the signal processing of the lamp body of the second modified example. The block diagram which shows the structure of the lamp of the 3rd modification in the lighting control system for production|presentation of embodiment. A flowchart showing the signal processing of the lamp body of the third modification.

[Lighting control system for production of the embodiment]
As shown in FIG. 1, a lighting control system 1 for performance according to an embodiment of the present invention includes a lighting control device 2 such as a lighting console that transmits a lighting control signal, and a lighting body that receives the lighting control signal. 3, and a plurality of lamp bodies 3 are connected in a daisy chain with a signal cable 4. - 特許庁A lamp body 3 located at the most upstream position of the stringing is connected to the light control device 2 by a signal cable 4, and a terminator 5 of a terminating resistor is installed at the lamp body 3 positioned at the most downstream position of the stringing.

As the dimming control signal, it is possible to use an appropriate dimming control signal composed of a dimming command value corresponding to the brightness (luminous intensity) of the light emitting section 33 of the lamp body 3, which will be described later. It is preferred to use DMX signals. In the case of a DMX signal, a 1-byte range of 0 to 255 (256 gradations) for dimming control of each lamp 3 corresponds to the dimming command value. ) can be defined and set corresponding to the dimming command value 0 to 100%.

A dimming control signal such as a DMX signal is basically sent continuously at constant time intervals from the dimming device 2 to each lamp body 3 connected in a row, and each lamp body 3 transmits the dimming control signal at a constant time. The light is continuously received at the time interval T, and the light emitting unit 33 is caused to emit light with the brightness (luminous intensity) corresponding to the dimming command value of the dimming control signal received at each time interval T. The time interval T for transmission and reception of this dimming control signal is typically about 1/30 second in the case of DMX signals.

As shown in FIG. 2, the lamp body 3 includes a light emission controller 31 for generating and outputting a light emission drive signal such as a PWM signal from a dimming control signal such as a DMX signal, and a light emission controller 31 for emitting light corresponding to the light emission drive signal. A light emission drive section 32 such as an LED drive circuit for driving the section 33 , a light emission section 33 such as an LED (light emitting diode), and an input section 34 capable of changing and inputting settings of the light emission control section 31 are provided.

The light emission control unit 31 is composed of, for example, a microcomputer composed of a CPU, a flash memory, a RAM, a timer, and an interface. 312. A signal generation program for generating a light emission drive signal from a dimming control signal is stored in the non-volatile storage portion of the storage device 312, and the arithmetic processing unit 311 of the light emission control unit 31 generates a signal like a DMX signal according to the signal generation program. A light emission drive signal is generated from the dimming command value of the dimming control signal and output to the light emission driving section 32 . For the light emission drive signal, it is preferable to use, for example, a PWM signal having a duty ratio associated with the dimming command value.

Further, the storage device 312 of the light emission control unit 31 stores a change reference value that serves as a reference for execution or non-execution of stepwise dimming. Then, as shown in FIG. 3, the arithmetic processing unit 311 of the light emission control unit 31 of the lamp body 3 receives the dimming control signal according to the signal generation program and using the change reference value (S1), and outputs the dimming control signal is less than or equal to the change reference value, a light emission drive signal for stepwise dimming up to the dimming command value is generated and output (S2, S3). , when the amount of change of the dimming control signal from the previous value of the dimming command value exceeds or is greater than the change reference value, generates and outputs a light emission drive signal for performing dimming to change the dimming command value at once to the dimming command value. (S2, S4).

In the stepwise dimming in the light emission control unit 31, for example, the time interval for transmission and reception of the dimming control signal T=1/29.97−α [seconds] (α: a positive constant that can be set), the division number N of the time interval T= 4 is set in the storage device 312 to generate and output a light emission drive signal that performs stepwise dimming up to the dimming command value. = 4, and T/N up to the target dimming command value of the received dimming control signal. It generates and outputs a light emission drive signal that changes step by step by the luminous intensity. Note that α described above is for the case where the reception interval of the dimming control signal varies, or the case where there are multiple types of the same reception interval depending on the use case. When the control signal reception interval is T' and the minimum value of the actual reception interval is expected to be T'min, it is preferable to set α=T'-T'min.

That is, as shown in FIG. 4, the dimming command value at time t _i is g _i , and the dimming command value at time t _{i+1 when} the time interval T between transmission and reception of the dimming control signal has passed from time t i is g _i+1 . In this case, the amount of change Δg _i+1 =g _i+1 −g _i with respect to the previous value of the dimming command value of the dimming control signal is divided into four, and the dimming command value g _i+ 1 at time t _i+1 when stepped dimming is not performed Instead, at time t _{i + 1} , dimming is performed with the dimming command value g _i + (Δgi _{+ 1} ) / 4, at time t _{i + 1a} , dimming is performed with the dimming command value g _i + 2 (∆gi _{+ 1} ) / 4, and at time t _{i + 1b} light control command value g _i +3 (Δg _i+1 )/4 at time t _i+1c , and light control command value g _i +4 (Δg _i+1 )/4=g _i+1 at time t i+1c. do. FIG. 5 shows the PWM signal, which is the light emission drive signal generated in this example.

In both the example of FIG. 4 and the example of FIG. ₆ , which will _be described later, the newly received dimming command value is A light emission drive signal is generated and output so as to dim the light at g _i+2 , but the time interval T is shorter than the normal time interval T for transmission and reception of the dimming control signal depending on the connection state between the dimming device 2 and each lamp body 3. ' has passed from time t _i+1 , when the timing to emit light with the dimming command value g _i+2 at time t _i+2 occurs, that is, before interpolation dimming completion time t _i+1c by stepwise dimming of the lamp body 3 When it is time to emit light at the dimming command value g _i+2 at time t _{i +2} , it is preferable to preferentially dim the dimming command value g _{i+2 at} time t i+2 and generate and output a light emission drive signal. be. Due to the process of preferentially adjusting the dimming command value g i _{+2 at time t i+2 ,} even if the time interval T between transmission and reception of the dimming control signal suddenly changes and becomes shorter, the intention of the lamp body 3 It is possible to adapt with minimal change from the light emission state.

In both the example of FIG. 4 and the example of FIG. 6 described later, when performing stepwise dimming, instead of the dimming command value g _{i+1 at time t i+ 1} when stepped dimming is not performed, time By starting dimming at t _i+1 with the dimming command value g _i +(Δg _i+1 )/4, the interpolation dimming completion time t _i+1c by stepped dimming of the lamp body 3 and the original time t _i+2 If the timing to emit light with the dimming command value g i _{+ 2 at time t i+2} comes earlier, then the stepped dimming target dimming command value g _i +4(Δgi ₊₁ )/4=gi ₊₁ The process of generating a light emission drive signal for dimming can be reached and completed.

In addition, regardless of the presence or absence of stepwise dimming, the processing time for generating and outputting the light emission drive signal from the dimming command value, that is, the processing time S for changing the dimming command value, requires a certain amount of time. , by setting N so that T/N, which is the update time interval of the dimming command value in stepwise dimming, is larger than the dimming command value changing processing time S, and the appearance of the intended light emission state of the lamp body 3 can be guaranteed.

As a preferred example of the change reference value that serves as a reference for execution or non-execution of the stepwise dimming, for example, a predetermined intermediate value between the minimum value and the maximum value of the dimming command value is used. A value is set in the storage device 312 of the light emission control unit 31 so as to be changeable by an input from the input unit 34 or the like. For the change reference value of the predetermined intermediate value, for example, the maximum value 100 [%] of the dimming command value g of the dimming control signal is G, and a variable settable constant is _CG ( _0≤CG≤1 ), the change reference value (predetermined intermediate value): G×C _G is set.

Then, the light emission control unit 31 of the lamp body 3 or its arithmetic processing unit 311, for example, changes the light control command value of the light control signal from the immediately preceding value: |Δg _i+1 |< (or ≤) change reference value (predetermined Intermediate value): In the case of G×C _G , a light emission drive signal for stepwise dimming up to the dimming command value is generated and output, and time t _i+1 , time t _i+1a , time t _i+1b , and time t _{i+1c in} FIG. light control and light emission drive corresponding to the black dots of On the other hand, the amount of change of the dimming control signal from the previous value of the dimming command value: |Δg _i+1 |≧(or >) Change reference value (predetermined intermediate value): G×C Up to the dimming command value in the case of _G It generates and outputs a light emission drive signal for light control that changes at once, and executes light control and light emission drive corresponding to the white dot at time t i ₊₁ in FIG. 4 .

Further, as another preferred example of the change reference value that serves as a reference for execution and non-execution of stepwise dimming, the arithmetic processing unit 311 of the light emission control unit 31 follows a signal generation program to change the value from the dimming command value at any point in time. The difference between the maximum and minimum dimming command values among the specified number of recent dimming command values is continuously calculated and compared with the amount of change in the dimming control signal at a specific point in time from the previous value of the dimming command value. A value corresponding to the difference between the maximum and minimum dimming command values at a specific time is used as the change reference value. The aforementioned predetermined number is set and stored in the storage device 312 together with the signal generation program.

In the example of FIG. 6 showing this processing example, the light emission control unit 31 or its arithmetic processing unit 311 outputs the maximum and minimum dimming command values from among a predetermined number of dimming command values that are closest to the dimming command value at an arbitrary time. The difference between the values is continuously calculated, and at time t _i+1 , for example, the most recent predetermined number: 6 dimming command values, time t _i−(m−1) =time t _i−5 adjustment Light command value, dimming command value at time ti _-4 , dimming command value at time _ti-3 , dimming command value at time _ti-2 , dimming command value at time ti _-1 , time t Obtain the difference ΔG _i+1 =gmax _i+1 -gmin i+1 between the maximum dimming command value _{gmax i+1} and the minimum dimming command value gmin _{i+1 from} among the dimming command values of the dimming command value i, and further, at time t _i+2 , time t _i+3 , .

Then, when the time t _i+1 is a specific time point, ΔG _i+1 [%]× _CG , which is a value corresponding to the difference between the maximum and minimum dimming command values at the specific time point, is set in the storage device 312 as the change reference value. , is stored. C _G (0≦C _G ≦1) is a variable settable constant as described above. The change reference value at time t _i+1 : ΔG _i+1 [%]×C _G is temporarily stored in the storage device 312, and is changed to another change reference value as time elapses at time t _i+2 , time t _i+3 , . Updated sequentially.

In the processing example of FIG. 6, the light emission control unit 31 of the lamp body 3 or its arithmetic processing unit 311, for example, the amount of change from the previous value of the dimming command value of the dimming control signal: |Δg _i+1 |< (or ≤) change When the reference value is ΔG _i+1 × _CG , a light emission drive signal for stepwise dimming up to the dimming command value is generated and output, and time t _i+1 , time t _i+1a , time t _i+1b , and time t _{i+1c in FIG.} light control and light emission drive corresponding to the black dots of On the other hand, the amount of change from the previous value of the dimming command value of the dimming control signal: |Δg _i+1 |≧(or >) Change reference value: _{ΔG i+1} ×C A light emission drive signal for lighting is generated and output, and dimming and light emission drive corresponding to the white dot at time t _i+1 in FIG. 6 are executed. The graph of FIG. 7 shows the change over time of the PWM signal, which is the light emission drive signal, corresponding to the processing example of FIG.

According to the production dimming control system 1 of the present embodiment, when the amount of change from the value immediately before the dimming command value of the dimming control signal is small, it is suitable for specifying the lighting for the production purpose. If the light emitting unit 33 expresses a smooth luminous intensity change, the amount of change from the previous value of the dimming command value is large, and an expression in which the light changes abruptly is required, the light emitting unit 33 of each lighting unit 3 produces a sharp change. can express a large change in luminosity.

Furthermore, in the process of stepwise dimming up to the target dimming command value, the light emission timing corresponding to the target dimming command value is usually delayed by the time corresponding to the transmission cycle of the dimming control signal. When a dramatic change in light is required, it is often the case that a dramatic effect that flashes in time with other dramatic elements is required. It becomes difficult to produce a light emission production expression that matches the timing with other production elements. On the other hand, the production dimming control system 1 of the present embodiment has both a configuration in which the light emission corresponding to the target dimming command value is reached by stepwise dimming and a configuration in which the light emission is reached at once. It is also possible to smoothly perform the effect expression of light emission in timing with other effect elements. That is, the smooth luminous intensity change and the steep and large luminous intensity change of the light emitted from the light emitting portion 33 of the lamp body 3 can be displayed at appropriate timings.

Further, when a predetermined intermediate value between the minimum value and the maximum value of the light control command value is variably set in the storage device 312 of the light emission control unit 31 as the change reference value, the light emission of the light emission unit 31 It is possible to easily set a change reference value that serves as a reference for separating a smooth light intensity change and a steep and large light intensity change. Furthermore, by setting the change reference value to be changeable, it is possible to adjust the degree of priority given to smoothness or sharpness of light emission according to the characteristics of the presentation.

Further, the light emission control unit 31 continuously calculates and acquires the difference between the maximum and minimum dimming command values from among a predetermined number of dimming command values that are most recent from the dimming command value at an arbitrary time, and obtains the dimming command value at a specific time. In the case of using a value corresponding to the difference between the maximum and minimum dimming command values at a specific point in time as a change reference value to be compared with the amount of change from the previous value of the dimming command value of the light control signal, an appropriate Change criteria can be set dynamically in real time. That is, in the actual performance, the dimming command value may fluctuate only within a relatively narrow range, and the dimming command value of the dimming control signal is generated in real time according to the progress of the performance. In many cases, it is difficult to know the dimming command value and its fluctuation range in advance. Smooth changes in light intensity and sharp and large changes in light intensity can be displayed at appropriate timings.

[Scope of invention disclosed in this specification]
In addition to each invention, embodiment, and each example listed as an invention, the invention disclosed in this specification is specified by changing these partial contents to other contents disclosed in this specification within the applicable range or specified by adding other content disclosed in this specification to these contents, or specified by deleting these partial contents to the extent that partial effects can be obtained and making them a broader concept include those that The invention disclosed in this specification also includes the following contents and the following further modifications.

For example, in the production lighting control system 1 of the above-described embodiment, a plurality of lamp bodies 3 are connected in a daisy chain with the signal cable 4, but the devices connected in a daisy chain include devices other than the lamp bodies 3. Also, the case where a single lamp body 3 is connected to the dimming device 2 is also included in the lighting control system for production of the present invention. In addition, the lighting control signal in the production lighting control system of the present invention is appropriate within the applicable range other than the DMX signal, and the light emission drive signal is appropriate within the applicable range other than the PWM signal. .

8 and 9, as a first modified example of the production light control system 1 of the above embodiment, the lighting body 3a is provided with an auxiliary light emitting unit 36 such as an LED (light emitting diode) and an auxiliary light emitting unit 36. An auxiliary light emission drive section 35 such as an LED drive circuit that drives the auxiliary light emission section 36 in response to the light emission drive signal is provided, and the light emission control section 31 controls the light emission section 33 once to the dimming command value according to the determination result of S2. In the case of generating and outputting a light emission drive signal for dimming to change to , it is also preferable to input the auxiliary light emission drive signal for driving the auxiliary light emission section 36 to the auxiliary light emission drive section 35 (S5).

In the first modification, for example, the light emission control unit 31 uses the same light emission drive signal as the light emission drive signal for performing light control for changing the light emission unit 33 to the light control command value at once as the auxiliary light emission drive signal, and the auxiliary light emission drive unit 35 , generates a sudden change determination signal such as an ON signal corresponding to dimming to be changed at once, and outputs it to the auxiliary light emission driving section 35, and the auxiliary light emission drive signal and the sudden change determination signal are input. It is preferable that the auxiliary light emission drive section 35 performs processing for causing the auxiliary light emission section 36 to emit light by driving corresponding to the auxiliary light emission drive signal.

In another processing example of the first modification, for example, only when the light emission control unit 31 generates and outputs a light emission drive signal for performing dimming for changing the light emission unit 33 to the dimming command value at once, the light emission unit 33 to the dimming command value at once, the same light emission drive signal as the light emission drive signal for dimming, or a light emission drive signal different from this light emission drive signal is output to the auxiliary light emission drive section 35 as an auxiliary light emission drive signal. Alternatively, the auxiliary light emission drive section 35 may perform processing for causing the auxiliary light emission section 36 to emit light by driving corresponding to the auxiliary light emission drive signal. When a light emission drive signal that is different from a light emission drive signal that performs light control for changing the light emission unit 33 to the light control command value at once is used as the auxiliary light emission drive signal, for example, the light emission control unit 31 is set in the storage device 312. Using the set adjustment value, the duty ratio of the light emission drive signal is increased or decreased at a predetermined rate to generate an auxiliary light emission drive signal. In this other example of processing, it is possible to freely adjust and diversify the light emission state of the auxiliary light emission unit 36 when a sudden change in light intensity appears.

According to the first modified example, in the case where an expression of abrupt changes in light is required for the lighting for the purpose of presentation, the light emitting part 33 of the lighting body 3a emits light so as to express a steep and large luminous intensity change. At the same time, the auxiliary light emitting portion 36 of the lamp body 3a is caused to emit light, thereby emphasizing a steep and large luminous intensity change. In addition, by providing an auxiliary light-emitting portion 36 that emits light simultaneously with the light-emitting portion 33 when a steep and large change in luminous intensity appears, the auxiliary light-emitting portion 36 emits light of a different color from the light emitted from the light-emitting portion 33, for example. It is possible to diversify production lighting by emitting light.

2 and 10, the light emission control unit 31 sets the light emission unit 33 to the light control command value according to the determination result of S2 as a second modification of the production light control system 1 of the above embodiment. When generating and outputting a light emission drive signal for performing dimming that changes at once as described above, the light emitting unit 33 is driven so as to emit light whose luminous intensity is increased by a predetermined ratio from the luminous intensity corresponding to the dimming command value. It is also suitable as a configuration for controlling (S6).

In the second modification, for example, the light emission control unit 31 generates and outputs, to the light emission drive unit 32, a light emission drive signal for performing light control for changing the light emission unit 33 to a value greater than or equal to the light control command value at once, and outputs the signal to the light emission drive unit 32. A sudden change determination signal such as an ON signal corresponding to dimming to be performed is generated and output to the light emission drive unit 32, and the light emission drive unit 32 supplies a drive current for the light emission unit 33 according to the input of the sudden change determination signal. It is preferable that the light emission unit 33 is caused to emit light by increasing the value at a predetermined rate according to the set value stored in the storage unit of .

In another processing example of the second modified example, for example, when the light emission control unit 31 generates a light emission drive signal for performing light control for changing the light emission unit 33 to a value equal to or greater than the light control command value at once, setting in the storage device 312 A light emission drive signal is generated by increasing the duty ratio of the light emission drive signal corresponding to the dimming command value by a predetermined rate using the set adjustment value, and this light emission drive signal is output to the light emission drive section 32. is good.

According to the second modified example, in the case where the expression of abrupt changes in light is required for lighting for performance purposes, the light emitting section 33 of the lighting body 3 emits light so as to express a steep and large change in luminous intensity. At the same time, the light emitting unit 33 emits light whose luminous intensity is increased by a predetermined ratio from the luminous intensity corresponding to the dimming command value, so that a steep and large luminous intensity change can be further emphasized.

Further, as a third modification of the lighting control system 1 for performance of the above-described embodiment, as shown in FIG. A notification unit 38 that performs notification for setting parameter adjustment, and a notification operation control unit 37 that controls the operation of the notification unit 38 so as to perform notification such as a drive circuit such as an LED drive circuit. When generating and outputting a light emission drive signal for stepwise dimming, a step determination signal corresponding to stepwise dimming is generated and output to the notification operation control unit 37, or light emission for performing dimming that changes at once When the drive signal is generated and output, a sudden change determination signal corresponding to dimming that is changed at once is generated and output to the notification operation control unit 37, and the notification operation control unit 37 generates a step determination signal such as an ON signal. or in response to a sudden change determination signal such as an ON signal, the operation of the notification unit 38 is controlled so as to perform notification.

In the third modification, for example, as shown in FIG. 12, the light emission control unit 31 generates and outputs a light emission drive signal for performing light control that changes at once according to the determination result of S2. A sudden change determination signal corresponding to light is generated and output to the notification operation control unit 37, and the notification operation control unit 37 operates the notification unit 38 to perform notification in response to the sudden change determination signal such as an ON signal. control (S7). Note that the notification operation control section 37 and the notification section 38 in the third modification may be permanently installed integrally with the lamp body 3b, or may be temporarily installed detachably. In addition, the notification performed by the notification unit 38 is appropriate as long as it is information that can be recognized by the five senses of a human being. information or a combination thereof.

In the production dimming control system 1 of the above embodiment, the determination process of S2 in FIG. 3 or FIG. Since the luminous intensity of the light emitting unit 33, on which the determination result is reflected each time, changes depending on the dimming command value, it is difficult to recognize the determination result of S2. Therefore, before using the performance lighting control system 1 for production, for example, the number of divisions N for the time interval T of transmission and reception of the lighting control signal and the reference value for change in the lighting control system 1 are determined according to the determination result of S2. The task of adjusting and setting various parameters set in the lamp body 3b, such as the changeably settable constant _CG multiplied by the maximum value of the dimming command value of the control signal and the coefficient α, is also a difficult task.

According to the third modified example, various parameters set in the lamp body 3b can be easily and appropriately controlled based on the notification of the notification unit 38 corresponding to the step determination signal or the sudden change determination signal of the luminous intensity of the lamp body. can be adjusted and set.

Further, regarding the above-described first to third modifications, the lighting control system for production of the present invention has a configuration in which the first modification and the second modification are combined, or a combination of the first modification and the third modification. or a combination of the second modified example and the third modified example, or a combination of the first, second, and third modified examples.

INDUSTRIAL APPLICABILITY The present invention can be used, for example, as a lighting control system for performance purposes such as television studios, stages, and illuminations.

DESCRIPTION OF SYMBOLS 1... Dimming control system 2... Dimming apparatus 3, 3a, 3b... Lamp body 31... Light emission control part 311... Arithmetic processing unit 312... Storage device 32... Light emission drive part 33... Light emission part 34... Input part 35... Auxiliary light emission Drive unit 36 Auxiliary light emitting unit 37 Notification operation control unit 38 Notification unit 4 Signal cable 5 Terminator

A production lighting control system according to the present invention is a production lighting control system comprising a lighting device for transmitting a lighting control signal and a lamp for receiving the lighting control signal. a light emission unit; a light emission control unit for generating and outputting a light emission drive signal from the dimming control signal; and a light emission drive unit for driving the light emission unit in accordance with the light emission drive signal, the light emission control unit generates the light emission drive signal for stepwise dimming up to the dimming command value when the amount of change from the previous value of the dimming command value of the dimming control signal is less than or less than the change reference value. and when the change amount of the dimming command value of the dimming control signal from the previous value exceeds or exceeds the change reference value, dimming is performed by changing the dimming command value or more at once. It is characterized by generating and outputting the light emission drive signal. Further, in the lighting control system for performance of the present invention, the number of divisions N of the time interval T based on the time interval T of transmission and reception of the light control signal is set and stored in the storage device of the light emission control unit, and the light emission control is performed. When the unit generates and outputs the light emission drive signal for performing stepwise dimming up to the dimming command value, the dimming control signal is divided for each time interval of transmission/reception time interval T/divided number N of the dimming control signal. It is preferable to generate and output a light emission drive signal that changes step by step by the light command value.
According to this, when the amount of change of the dimming control signal from the previous value of the dimming command value is small, a smooth luminous intensity change is expressed, and is large, and when an expression in which the light changes rapidly is required, a sharp and large change in luminous intensity can be expressed. Furthermore, in the process of stepwise dimming up to the target dimming command value, the light emission timing corresponding to the target dimming command value is usually delayed by the time corresponding to the transmission cycle of the dimming control signal. When a dramatic change in light is required, it is often the case that a dramatic effect that flashes in time with other dramatic elements is required. It becomes difficult to produce a light emission production expression that matches the timing with other production elements. In response to this, by providing both a configuration in which the light emission corresponding to the target dimming command value is reached by stepwise dimming and a configuration in which the light emission is reached at once, the timing is matched with such other production elements. The effect expression of light emission can also be performed smoothly. That is, a smooth luminous intensity change and a steep and large luminous intensity change of the light emitted from the light emitting section can be represented at appropriate timings.

Claims (7)

A production dimming control system comprising a dimming device for transmitting a dimming control signal and a lighting body for receiving the dimming control signal,
The lighting body is provided with a light emitting section, a light emission control section for generating and outputting a light emission drive signal from the dimming control signal, and a light emission drive section for driving the light emission section in response to the light emission drive signal,
The light emission control unit performs stepwise dimming up to the dimming command value when the amount of change from the last value of the dimming command value of the dimming control signal is less than or less than a change reference value. A signal is generated and output, and when the amount of change of the light control command value from the previous value of the light control signal exceeds or exceeds the change reference value, the light control signal is changed to the light control command value or more at once. A lighting control system for performance, characterized by generating and outputting the light emission drive signal for light control. 2. A performance light control according to claim 1, wherein a predetermined intermediate value between the minimum value and the maximum value of said light control command value is set as said change reference value so as to be changeable in said light emission control unit. control system. The light emission control unit continuously calculates and obtains a difference between a maximum and a minimum dimming command value from among a predetermined number of dimming command values immediately preceding a dimming command value at an arbitrary time, and obtains the dimming command value at a specific time. A value corresponding to a difference between the maximum and minimum dimming command values at the specific point in time is used as the change reference value to be compared with the amount of change from the previous value of the dimming command value of the control signal. Item 1. The lighting control system for production according to Item 1. When the light emission control unit generates and outputs the light emission drive signal for performing stepwise light control up to the light control command value, the next signal received from the light control device before the completion time of the stepwise light control When the timing to emit light with the dimming command value of the dimming control signal arrives, the light emission drive signal is generated so as to prioritize light emission according to the next dimming command value of the dimming control signal at the timing. 4. The production light adjustment control system according to claim 1, wherein output is provided. The lighting body is provided with an auxiliary light emitting section and an auxiliary light emitting driving section for driving the auxiliary light emitting section in response to an auxiliary light emitting drive signal,
When the light emission control unit generates and outputs the light emission drive signal for performing light control for changing the light emission unit to the light control command value at once, the auxiliary light emission drive signal for driving the auxiliary light emission unit is generated. 5. The performance light adjustment control system according to claim 1, wherein the light is input to the auxiliary light emission driving section. When the light emission control unit generates and outputs the light emission drive signal for performing light control for changing the light emission unit to the light control command value or more at once, the light intensity is higher than the light control command value. 6. The performance lighting control system according to any one of claims 1 to 5, wherein driving of the light emitting unit is controlled so as to emit light with a proportionally increased luminous intensity. The lighting body is provided with a notification unit that performs notification for adjusting setting parameters of the lighting body, and a notification operation control unit that controls the operation of the notification unit so as to perform notification,
When the light emission control unit generates and outputs the light emission drive signal for stepwise dimming, it generates a step determination signal corresponding to stepwise dimming and outputs it to the notification operation control unit, or at once when generating and outputting the light emission drive signal for performing the dimming to be changed, generating a sudden change determination signal corresponding to the dimming to be changed at once and outputting it to the notification operation control unit;
7. The informing operation control unit controls the operation of the informing unit so as to make an informing according to the step determination signal or the sudden change determination signal. 3. The lighting control system for production described in .

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