JP4586497B2 - Dimming control device - Google Patents

Description

  The present invention relates to a light control device that controls the brightness of an illumination load.

  Traditionally, dimming systems and dimming control devices in stages and studios have been equipped with a backup power source consisting of a generator that generates electricity to prevent the lights from falling off during recording and production, especially during live programs. It is equipped with a mechanism that switches to a backup power source in the event of a power failure and lights the necessary lights. Also, since the backup power supply usually has a limited power supply capacity and cannot supply power to all lighting loads, the basic lighting load that is required to operate even during a power outage is selected and adjusted in advance. A technique is used in which illumination is performed using only the stored illumination load when a power failure is detected by storing in a light control device (see, for example, Patent Document 1).

  A conventional dimming control device will be described with reference to FIGS. FIG. 9 shows a general dimming control device 10 having a power supply switching function during a power failure. The dimming control device 10 includes a dimming console 1 having a central function of dimming control, a load circuit 2 for dimming the brightness of the illumination load 3, and a stop of power supply from an external commercial power source 6. A power failure detection unit 5 that detects (hereinafter referred to as power failure), a backup power source 7, and a power source switching unit 4 that switches a power supply source between the commercial power source 6 and the backup power source 7 are provided. When a power failure occurs, the power failure detection unit 5 detects the power failure and outputs a power failure detection signal T to the power switching unit 4 and the dimming console 1. The power supply switching unit 4 that has received the power failure detection signal T switches the input power supply from the commercial power supply 6 to the backup power supply 7, and changes the power P3 supplied to the dimming console 1 from the power P1 by the commercial power supply 6 to the power from the backup power supply 7. Switch to P2.

  The above-described dimming console 1 is supplied with electric power P1 and P3 from an external commercial power supply 6 and loads the dimming signal S and electric power P4 to control the brightness of the lighting load 3 via the load circuit 2. Output to circuit 2. The dimming and lighting by the lighting load 3 controls the power to the lighting load 3 based on a lighting control pattern called a scene in which the dimming level of each lighting load 3 is set in advance (referred to as scene reproduction). ). Therefore, the load circuit 2 receives the dimming signal S, reproduces the scene based on the dimming signal S, and dimmes the brightness of the illumination load 3.

  The above-described light control console 1 will be further described. As shown in FIG. 10, a conventional dimming console 1 includes a control unit 11 that inputs and outputs control signals to control each unit, a storage unit 12 that stores scene data D5 as shown in FIG. An output unit 13 that outputs a dimming signal S, a display unit 14 that displays a device state to a user of the device, and an operation unit 15 for the user to operate the device are provided. When the control unit 11 receives the power failure detection signal T, the control unit 11 notifies the user of the power failure through the screen of the display unit 14 or LED lighting.

  The scene reproduction operation at the time of a power failure by the dimming control device 10 including the above-described dimming console 1 will be described. Conventionally, a “power failure scene” having a power failure specification is prepared in advance as a scene to be reproduced at the time of a power failure, and lighting is performed using the power failure scene at the time of a power failure. For example, the scene data D5 shown in FIG. 11 includes a single “blackout scene” as one of a plurality of scenes 1, 2,... Composed of various combinations of dimming levels of the lighting load 3. At the time of a power failure, the user recognizes the power failure by the display on the display unit 14, and operates the operation unit 15 to perform a power failure scene call operation. Then, the control unit 11 calls a power outage scene from the scene data D5 stored in the storage unit 12, creates a power outage scene signal, and outputs the signal to the output unit 13. The output unit 13 receives this signal and outputs a dimming signal S for reproducing the scene by reproducing the level of the illumination load corresponding to the power failure scene.

Incidentally, FIG. 12 shows an example of the illumination load 3 composed of the lamp groups LA, LB, LC and the like often used in an actual studio. In a studio of a television station, a plurality of sets A, B, and C are assembled in one studio, and these are controlled by one dimming control device 10. A scene corresponding to a set to be used in advance is set using the dimming control device 10, and each scene is selected and reproduced by the dimming control device 10 at the time of illumination execution. That is, the required lighting load level is reproduced.
JP 51-116668 A

  However, in the dimming control device 10 provided with the dimming console 1 as described above, when three sets A, B, and C are installed in one studio as shown in FIG. Is a load used in set A, lamp group LB is a load used in set B, and lamp group LC is a load used in set C. Therefore, for example, when only set A and set C are used, it is not necessary to turn on the lamp group LB. For this reason, only a single minimum blackout scene as shown in FIG. 11 can only turn on the minimum necessary light overall, and optimal dimming control cannot be performed. Even if a plurality of power outage scenes are prepared, the user cannot always select the optimum scene. Such a problem is also the same in the dimming control device disclosed in Patent Document 1, and one cause is that information about the scene being reproduced is not taken into account in the “power failure scene”.

  The present invention solves the above-described problems, and is a dimming control capable of reproducing a scene by selecting an optimum illumination load according to the scene being reproduced without exceeding the capacity of the backup power source in the event of a power failure An object is to provide an apparatus.

In order to achieve the above object, the invention of claim 1 is directed to a dimming console for outputting a dimming signal for controlling the brightness of a plurality of lighting loads by receiving power supply from an external power source, and the dimming signal. A load circuit that receives and dimms the brightness of the lighting load, a power failure detection unit that detects that the external power source has failed, a backup power source, and the light control when the power failure is detected by the power failure detection unit A power switching unit that switches power supply to the console from an external power source to the backup power source;
A dimming control device having a function of reproducing a scene according to dimming levels of a plurality of preset lighting loads, and when the power supply is switched from an external power source to a backup power source due to a power outage, And a dimming console including an optimum output selection unit at the time of a power failure for selecting an illumination load so that reproduction is performed in an optimum scene based on information on the scene being reproduced immediately before and the capacity of the backup power source. Is preset as a scene during a power outage
The power outage scene is stored in correspondence with each scene at the time of non-power outage, and the optimum output selection part at the time of power outage is
When a power failure occurs, the power failure scene corresponding to the scene being played immediately before the power failure occurs is automatically selected.
It is those that.

According to a second aspect of the invention, the light control device according to claim 1, wherein the power failure optimum output selection unit receives the return back information indicating the operation state of the lighting load during a power outage from the load circuit, this return back When the amount of power required for the scene being played immediately before a power outage is determined based on the information, the calculated amount of power is compared with the capacity of the backup power source, and power can be output to all lighting loads being played Outputs power to all lighting loads, and when the amount of power exceeds the capacity, lighting loads are selected in descending order of priority, and lighting of the lighting loads with lower priority is suppressed.

  According to the invention of claim 1, when the power output is optimally selected at the time of a power failure, and when the power source is switched from the external power source to the backup power source at the time of the power failure, based on the information about the scene being reproduced and the capacity of the backup power source, Since the optimal lighting load is selected for the scene that is being played immediately before the power failure, the scene at the time of the power failure is played back, so that it is possible to continue work such as recording while minimizing the change in light during a power failure.

Also, prepare a power outage scene corresponding to each scene at the time of non-power outage, and if backup power is supplied at the time of power outage, the power outage scene corresponding to the scene being played immediately before the power outage occurs at the time of power outage automatically Therefore, it is possible to suppress the power supplied to the load of unnecessary scenes that are not reproduced, and to light only the necessary lights suitable for the reproduction scene.

According to the second aspect of the present invention, the amount of power required for the scene being reproduced is calculated based on the return back information from the load circuit, and control is performed so as not to exceed the capacity of the backup power source. Since priority is set and the lighting load to be output is selected according to the priority, it is possible to select and light up in order from the load with the highest priority without exceeding the capacity of the backup power supply in the event of a power failure, and output to the load with a lower priority It is possible to output only the necessary load while suppressing this.

  Hereinafter, a dimming control device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a block configuration of a light control console 1 in the light control device of the present invention. The overall configuration of the dimming control device according to the present invention is the same as that of the dimming control device 10 shown in FIG. 9 for the purpose of explaining the conventional example, and the description thereof will be omitted and FIG. 9 will be referred to as appropriate. As shown in FIG. 1, the dimming console 1 outputs a dimming signal S, a control unit 11 that inputs and outputs control signals and controls each unit, a storage unit 12 that stores scene data, and the like. An output unit 13, a display unit 14 for displaying the device status to the user of the device, an operation unit 15 for the user to operate the device, information about the scene being played back and the capacity of the backup power source 7 at the time of a power failure On the basis of this, an optimum output selection unit 16 at the time of power failure is provided that selects the optimal illumination load 3 for the scene being reproduced and outputs the selection result.

  The dimming console 1 includes the optimum output selection unit 16 at the time of power failure, and further, the configuration of the scene data stored in the storage unit 12 and referred to by the optimum output selection unit 16 at the time of power failure and the control unit 11 is enhanced. The point (described later) is greatly different from the conventional dimming console 1 and the conventional dimming control device 10. Due to these points, the dimming control device 10 according to the present invention reproduces a scene (power failure scene) by selecting an optimum load according to the scene being reproduced without exceeding the capacity of the backup power source at the time of a power failure. It is possible. That is, the dimming console 1 that recognizes that a power failure has occurred by the control unit 11 receiving the power failure detection signal T at the time of a power failure selects the illumination load to be output by the optimum output selection unit 16 at the time of power failure Then, a dimming signal S is created and output based on the selection result, thereby reproducing an optimum scene at the time of a power failure.

  Here, with reference to FIG. 2 and FIG. 3, the reproduction | regeneration of the power failure scene in which the above-mentioned optimal output selection part 16 at the time of a power failure concerned at the time of a power failure is further demonstrated. The storage unit 12 of the dimming console 1 stores scene data D1 as shown in FIG. 2, and each scene 1, 2,. , ... are set. When the control unit 11 receives the power failure detection signal T at the time of the power failure, the optimum output selection unit 16 at the time of the power failure is based on the scene information D2 indicating that the scene is being reproduced / not being reproduced at the time of the power failure as shown in FIG. For each scene 1, 2,..., Distinguishing scenes 1, 3,... Being played back from non-playing scenes 2,. Select scenes 1, 3,. After that, the control unit 11 receives the information of the selected power outage scene 1, 3,..., Selects the load of only the selected power outage scene 1, 3,. A dimming signal S is output via the output unit 13.

  Next, with reference to FIG. 4, the structure in the light control console 1 for not exceeding the capacity | capacitance of a backup power supply is demonstrated. The storage unit 12 stores output load selection data D3 at the time of power failure in which information about a scene is provided together with a load amount for each lighting load as shown in FIG. 4 (lighting load information). In the example of output load selection data D3 at the time of power failure shown in FIG. 4, for the nine lighting loads in order from the left column, the load used during a power failure (（), the load amount of each load, each scene 1, 2, 3 , And the load amount used in the event of a power outage and the total power load thereof are shown and stored. When the user sets a scene in advance, the optimum output selection unit 16 at the time of power failure calculates the total power load of the selected lighting load, and if the capacity exceeds the capacity of the backup power source 7, the display unit 14 is used. Alert the user.

  In the example of the output load selection data D3 at the time of power failure shown in FIG. 4, the lighting loads used in the scenes 1, 2, 3 are loads 1, 2, 3, in the scene 1, and loads 4, 5, 6, in the scene 2. In scene 3, the loads are 7, 8, and 9. In addition, the use loads at the time of a power failure in scenes 1, 2, and 3 are loads 1 and 3 in scene 1, loads 4 and 6 in scene 2, and loads 7 and 9 in scene 3, respectively. Even when all of these loads are used (power load is 600), the capacity of the backup power supply 7 (capacity is 650) is not adjusted. By setting the lighting load at the time of power failure in this way, the total amount of load power does not exceed the capacity of the backup power source 7 even if a power failure occurs during playback of all scenes. Can be played. For example, assuming that a power failure occurs during playback of scenes 1 and 3, the lights of only the loads 1, 3, 7, and 9 are output as described above, so that playback is performed without exceeding the capacity of the backup power source 7. Light suitable for the scene can be output.

  Next, another dimming control device 10 of the present invention will be described with reference to FIGS. As shown in FIG. 5, the dimming control device 10 outputs return back information R indicating the operating state of the lighting load including values such as the voltage and current amount of the lighting load 3 from the load circuit 2, and performs dimming. Means for notifying the console 1 of such information is provided. As shown in FIG. 6, the return back information R is received by the optimum output selection unit 16 at the time of power failure in the dimming console 1. Therefore, the optimum output selection unit 16 at the time of power failure can determine the load amount of power necessary for the scene being reproduced at the time of power failure based on the return back information R from the load circuit 2 at the time of power failure.

  A processing flow for performing optimum output using the above-described return back information R will be described. As shown in FIG. 7, when the power failure detection output T transmitted from the power failure detection unit 5 is received via the control unit 11 (S1), the optimum output selection unit 16 at the time of power failure receives the return back information R from the load circuit 2. Analyzing and integrating the load amount of the scene being played back, the total power load is obtained (S2). Next, the optimum output selection part 16 at the time of a power failure compares this electric power load with the capacity | capacitance of the backup power supply 7 (S3). As a result of the comparison, when it is determined that the power load does not exceed the capacity of the backup power source 7 (No in S3), power can be output to all the lighting loads being regenerated. 16 selects that power is output to all lighting loads, and outputs a dimming signal S to that effect to the load circuit 2 via the control unit 11 and the output unit 13 (S5).

  If it is determined that the power load exceeds the capacity (Yes in S3), the power outage optimum output selection unit 16 selects the lighting load based on the priority order data D4 of the lighting load shown in FIG. Perform (S4). The priority order data D4 is stored in the storage unit 12 by setting, for example, four levels of priority orders A, B, C, and D for each load No of each lighting load. The optimum output selection unit 16 at the time of power failure performs load integration in the order of priority according to the priority order of loads, selects up to a lighting load that does not exceed the capacity, and a dimming signal to that effect via the control unit 11 and the output unit 13 S is output to the load circuit 2 (S5). As described above, the dimming control device 10 outputs power to the lighting loads 3 with the highest priority and outputs to the lighting loads with the lower priority based on the return back information R and the priority order data D4. Can be suppressed. In other words, the optimal lighting load 3 is dynamically changed so as not to exceed the capacity of the backup power source 7 at the time of a power failure and according to the scene being reproduced, that is, taking the information about the scene being reproduced into account in the “power failure scene”. You can select and play the scene.

  The dimming control apparatus 10 includes a process or a set of functions on an electronic computer having a general configuration such as a CPU, a memory, an external storage device, a display device, and an input device as a constituent element. Can do. Further, the present invention is not limited to the above configuration and can be variously modified. For example, in addition to the selection of the lighting load at the time of a power failure, it is also possible to use a combination of means for suppressing the power load by suppressing the amount of power supplied to the selected lighting load.

The block block diagram of the light control console in the light control apparatus of this invention. The figure which shows the example of the scene data used in a dimming control apparatus same as the above. The figure which shows the example of the information about the scene used in a dimming control apparatus same as the above. The figure which shows the example of the output load selection data at the time of a power failure used in a dimming control apparatus same as the above. The whole block diagram which shows the other light control apparatus of this invention. The block block diagram of the light control console in a light control device same as the above. The processing flowchart figure at the time of a power failure in a dimming control apparatus same as the above. The figure which shows the example of the priority order data of the illumination load used in a dimming control apparatus same as the above. The whole block diagram of the light control apparatus in the past and this invention. The block block diagram of the light control console in the conventional light control apparatus. The figure which shows the example of the scene data used in the conventional light control apparatus. The top view which shows the example of arrangement | positioning of the illumination load to which the past and this invention are applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dimming console 2 Load circuit 3 Illumination load 4 Power supply switching part 5 Power failure detection part 7 Backup power supply 10 Dimming control device 16 Optimal output selection part at the time of a power failure S Dimming signal

Claims (2)

A dimming console that receives power from an external power supply and outputs a dimming signal that controls the brightness of multiple lighting loads;
A load circuit for receiving the dimming signal and dimming the brightness of the lighting load;
A power failure detection unit that detects that the external power supply has failed;
Backup power supply,
A power switching unit that switches power supply to the dimming console from an external power source to the backup power source when a power failure is detected by the power failure detection unit, and dimming a plurality of preset lighting loads A dimming control device having a function of reproducing a scene according to a level,
When power supply is switched from an external power supply to a backup power supply due to a power failure, lighting is performed so that playback is performed in an optimal scene based on information about the scene being played immediately before the power failure and the capacity of the backup power supply. Equipped with an optimum output selection section at power failure to select the load ,
The dimming console does not stop a power outage scene set in advance as a scene during a power outage.
Memorize it corresponding to each scene at the time of electricity,
The optimal output selection section at the time of power failure corresponds to the scene being played immediately before the power failure occurs at the time of power failure.
A dimming control device that automatically selects a power outage scene . The optimum output selection unit at the time of a power failure receives return back information indicating an operating state of a lighting load at the time of a power failure from the load circuit, and based on the return back information, calculates an amount of power necessary for a scene being reproduced just before a power failure occurs. The calculated power amount is compared with the capacity of the backup power source. If power can be output to all the lighting loads being reproduced, power is output to all the lighting loads, and the power amount exceeds the capacity. 2. The dimming control device according to claim 1, wherein the lighting load is selected in descending order of priority in order to suppress lighting of the lighting load having a low priority.

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