JP2022155799A - Lighting system and lighting control method - Google Patents

Abstract

To accurately control the brightness of a lighting load in a television studio or the like during a power failure.SOLUTION: A lighting system for selectively supplying power from power receiving equipment, auxiliary power supply equipment, or uninterruptible power supply equipment according to the presence or absence of power failure of a commercial power supply to a plurality of power supply systems that respectively supply power to a plurality of lighting loads, and controlling the on and off of these lighting fixtures determines the power supply status of the power receiving equipment, the auxiliary power supply equipment, and the uninterruptible power supply equipment, and controls the on/off of the plurality of lighting fixtures on the basis of the priority set in advance according to the determination result.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to lighting systems and lighting control methods.

2. Description of the Related Art Conventionally, lighting fixtures using halogen lamps with high color rendering properties are known to be used in lighting systems such as television studios and stages in which people are the main object of lighting. This lighting fixture has a box-shaped fixture body with an opening, and is configured such that a light source (halogen lamp), a control board, and the like are housed inside the fixture body.

Further, the lighting system basically includes a light control console, a light control panel having a plurality of built-in dimmers, and the lighting equipment (lighting load) connected to each dimmer and controlled for light control. The dimming control console sets the dimming level of the lighting equipment, creates dimming level data, and transmits the data to each dimmer on the dimming panel via a transmission line.

By the way, in television studios and the like, as described above, people are the main object of lighting. An example using a GC power supply (Generator Current) is also known.

JP 2008-262783 A

However, in a system that outputs predetermined dimming level data from a dimming control console and controls the lighting load to turn on at a predetermined dimming level from the off state, when switching from the commercial power supply to the GC power supply, Since the power supply is temporarily interrupted, the control of the lighting load on the dimming operation console and the change in the brightness of the lighting load differ, which makes it difficult to ensure continuous lighting. In addition, there arises a problem that a rush current flows into the lighting load and stress is applied, shortening the life of the lamp and possibly tripping the breaker.

On the other hand, in recent years, along with the energy-saving of lighting equipment, it has become possible to supply the minimum amount of electric power necessary to ensure lighting during a power failure from a so-called UPS (Uninterruptible Power Supply).

Using this UPS together solves the problem that occurs when switching the power supply as described above, but lighting fixtures using halogen lamps have a large lighting load, Further appropriate brightness control has been demanded.

Accordingly, the embodiments provide a lighting system and a lighting method that can accurately control the brightness of the lighting load in a television studio or the like during a power outage.

According to the embodiment, a power receiving facility that receives commercial power supply from an electric power company and supplies a predetermined power supply to a load; Auxiliary power supply equipment that supplies; Uninterruptible power supply equipment that can supply a predetermined power to the load in the event of a power failure of the commercial power supply; Measuring the current and voltage of the power supply supplied from the power receiving equipment A current and voltage meter for power receiving equipment having a function of outputting; A current and voltage meter for auxiliary power equipment having a function of measuring the current and voltage of the power supply supplied from the auxiliary power equipment and outputting the measured value; A current and voltage meter for uninterruptible power supply equipment that has a function of measuring the current and voltage of the power supply supplied from the uninterruptible power supply equipment and outputting the measured value; said power receiving equipment, said auxiliary power equipment and said uninterruptible power supply equipment a power supply switching device having a function of selecting any one of the power supplies respectively supplied from the a plurality of ammeters for measuring the currents of the power supplies supplied from the plurality of power supply systems; and a plurality of remotes respectively arranged in the plurality of power supply systems and individually controlling on/off of the plurality of power supply systems. a switch; a plurality of lighting fixtures respectively connected to the plurality of power supply systems as loads; Acquiring the measured value, determining the power supply state related to the power receiving equipment, the auxiliary power supply equipment and the uninterruptible power supply equipment based on the obtained measured value, and based on the preset setting value, A control device having a function of outputting a selection signal for selecting and switching the equipment to the power switching device and outputting a control signal for controlling on/off of each of the plurality of remote switches. equip.

2 is a block diagram showing the configuration of a power supply system that supplies power to lighting fixtures in the lighting system according to the first embodiment; FIG. FIG. 3 is a block diagram for explaining functions of a control device that controls a power source that supplies power to lighting fixtures in the lighting system according to the first embodiment; 4 is a flowchart for explaining power supply control in the lighting system according to the first embodiment; 4 is a flowchart for explaining power supply control in the lighting system according to the first embodiment; FIG. 4 is a table showing an example of setting contents (load system priority setting) in the control device in the lighting system according to the first embodiment. 4 is a table showing the relationship between power supply conditions for power receiving equipment and priorities of lighting fixtures (power supply systems) in the lighting system according to the first embodiment. FIG. FIG. 4 is a table showing the relationship between power supply conditions related to an auxiliary power supply facility (private power generator) and priority levels of lighting fixtures (power supply system) in the lighting system according to the first embodiment. FIG. 4 is a table showing the relationship between power supply conditions for an uninterruptible power supply (uninterruptible power supply) and priority of lighting fixtures (power supply system) in the lighting system according to the first embodiment. FIG. 10 is a block diagram showing the configuration of a power supply system that supplies power to lighting fixtures in the lighting system according to the second embodiment;

Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
(Constitution)
FIG. 2 is a block diagram showing the configuration of a power supply system that supplies power to lighting fixtures in the lighting system according to the first embodiment; FIG. 3 is a block diagram for explaining functions of a control device that controls power to be supplied; FIG.

The lighting system according to this embodiment is assumed to be a lighting system used in a television studio. Further, the lighting system of the present embodiment is used in a television studio in which people are the main object of lighting, and is characterized by using lighting fixtures using halogen lamps with high color rendering properties.

<Power supply system of the first embodiment>
First, a power supply system for supplying power to lighting fixtures in the lighting system of this embodiment used in a television studio will be described.

<Power receiving equipment, auxiliary power supply equipment, uninterruptible power supply equipment>
As shown in FIG. 1, a lighting system 1 according to the present embodiment includes a power receiving facility 10 that receives commercial power supply from an electric power company, and can supply predetermined power to a load in the event of a power failure of the commercial power supply. and an uninterruptible power supply facility (uninterruptible power supply) 30 capable of supplying a predetermined power to the load in the event of a power failure of the commercial power supply.

The power receiving equipment 10 is supplied with commercial power from an electric power company, and supplies predetermined power to loads such as a plurality of lighting fixtures 301 to 303 used in the television studio.

The auxiliary power supply facility 20 is arranged independently of the power receiving facility 10, and can supply predetermined power to the load (plurality of lighting fixtures 301 to 303, etc.) at the time of a power failure of the commercial power supply related to the power receiving facility 10. It is a power supply facility that In the present embodiment, a so-called GC power supply (Generator Current) such as a private power generator is adopted as the auxiliary power supply facility. Hereinafter, in this specification, the example which employ|adopted the private power generator 20 as auxiliary power supply equipment is demonstrated.

The uninterruptible power supply facility 30 is configured by a so-called UPS (Uninterruptible Power Supply) that always receives power supply from the power receiving facility 10 and operates when the commercial power supply fails. Hereinafter, in this specification, an example in which an uninterruptible power supply (UPS) 30 is adopted as an uninterruptible power supply facility will be described.

In addition, in the present embodiment, the lighting system 1 measures the current and voltage values of the power receiving equipment 10, the auxiliary power equipment (private power generator) 20, and the uninterruptible power supply equipment (uninterruptible power supply) 30. Current for power receiving equipment It includes a voltmeter 11 , a current-voltage meter for auxiliary power supply equipment (current-voltage meter for private power generator) 21 , and a current-voltage meter for uninterruptible power supply equipment (current-voltage meter for uninterruptible power supply) 31 . Measured values measured by the current-voltage meter 11 for the power receiving equipment, the current-voltage meter 21 for the auxiliary power equipment, and the current-voltage meter 31 for the uninterruptible power equipment are obtained by the controller 50 described later.

<Power switching device>
Furthermore, the lighting system 1 selects any one of the power supplies supplied from the power receiving equipment 10, the private power generator 20, and the uninterruptible power supply 30, and supplies the selected power supply to a plurality of downstream power supply systems. A power supply switching device 40 having a connection function is provided. The power switching device 40 is controlled by a control device 50, which will be described later.

<Multiple power supply systems with lighting fixtures>
The lighting system 1 of this embodiment further includes a plurality of power supply systems that supply power to the plurality of lighting fixtures. In this embodiment, for example, six power supply systems (system A, system B, system C, system D, system E, and system F) that supply power to six lighting fixtures, respectively, are arranged. do. In this embodiment, six power supply systems are provided, but the present invention is not limited to this, and more or less lighting equipment power supply systems may be provided. good too.

As shown in FIG. 1, a plurality of power supply systems (system A, system B, system C, system D, system E, and system F) in the present embodiment are branched from a power supply switching device 40, respectively. A plurality of ammeters 101 to 106 are provided to measure the current of the power supply supplied each time. Furthermore, remote switches 201 to 206 are connected to the plurality of ammeters 101 to 106, respectively, for individually controlling on/off of the power supply system.

Lighting fixtures 301 to 303 as lighting loads are connected to the plurality of remote switches 201 to 206, respectively.

<Lighting equipment in this embodiment>
In this embodiment, a lighting fixture using a halogen lamp is adopted as the lighting fixture. In a television studio to which the lighting system 1 of the present embodiment is applied, a person is the main object of illumination, so halogen lamps with high color rendering properties are often adopted as lighting fixtures. Halogen lamps will be used as part of the lighting fixtures. Specifically, this lighting fixture has a box-shaped fixture body with an opening, and is configured such that a light source (halogen lamp), a control board, and the like are housed inside the fixture body.

<Control device 50>
As shown in FIGS. 1 and 2, the lighting system 1 of this embodiment includes a power switching device 40 and a control device 50 that controls a plurality of power supply systems.

This control device 50 includes the above-described current-voltage meter 11 for power receiving equipment, current-voltage meter for auxiliary power equipment (current-voltage meter for private power generator) 21, current-voltage meter for uninterruptible power supply equipment (current for uninterruptible power supply It has a function of acquiring the measured values respectively measured by the voltmeter) 31 and determining the power supply state of the power receiving equipment 10, the private power generator 20, and the uninterruptible power supply 30 based on the acquired measured values.

In addition, the control device 50 selects and switches each of the facilities (the power receiving facility 10, the private power generator 20, the uninterruptible power supply 30) for the power supply switching device 40 based on a preset setting value. has a function of outputting a selection signal (power supply switching signal). The switching control based on this preset set value will be described in detail later.

Further, the control device 50 controls on/off of the plurality of lighting fixtures 301 to 303 respectively arranged in the plurality of power supply systems (system A, system B, system C, system D, system E, and system F). , and outputs a control signal (ON/OFF signal) for controlling ON/OFF of each of a plurality of remote switches (system-specific switches) 201 to 206 arranged for each system.

<Priority of lighting equipment (system)>
In this embodiment, priority levels are assigned in advance to the plurality of lighting fixtures 301 to 303 associated with the plurality of systems A to F, respectively. Then, for example, when there is a limit to the power (permissible current) supplied to the plurality of lighting fixtures 301 to 303 (for the plurality of systems A to F), such as when the commercial power supply fails, the control device 50 controls the operating lighting fixtures based on the set priority.

Furthermore, the order of priority described above in the present embodiment changes according to the power (permissible current) that can be supplied to the plurality of systems A to F. A specific example of setting the load system priority will be described below with reference to FIG.

FIG. 5 is a table showing an example of setting contents (setting of load system priority) in the control device in the lighting system according to the first embodiment.

As shown in FIG. 5, in this embodiment, the order of priority is set in advance according to the power (permissible current) that can be supplied to a plurality of systems A to F. For example, when the allowable current for the entire system is 30A (for example, when only the private power generator 20 is in operation), system F has the highest priority, followed by system A. , when the allowable current is 10 A (for example, when only the uninterruptible power supply 30 is in operation), the system F has the highest priority, and the next priority is the system E. be.

In FIG. 5, when the allowable current setting is 100 A, there is no power failure of the commercial power supply, that is, the power is normally supplied from the power receiving equipment 10, so the system A to system F Power is supplied to all of the plurality of lighting fixtures 301 to 303, and in this case, the priority setting described above is unnecessary.

<Relationship between the power supply conditions of each power supply facility and the priority of lighting fixtures>
Here, the power supply conditions of each power supply equipment (power receiving equipment 10, private power generator 20, uninterruptible power supply 30) in this embodiment and the priority of the lighting fixtures 301 to 306 (system A to system F) associated therewith will be described with reference to FIGS. 6 to 8. FIG.

FIGS. 6, 7, and 8 show the power supply conditions of each power supply facility (the power receiving facility 10, the private power generator 20, the uninterruptible power supply 30) in the lighting system according to the first embodiment, and the accompanying power supply conditions. FIG. 10 is a table showing the relationship between lighting fixtures (systems A to F) and their priorities;

As shown in FIGS. 6, 7, and 8, in this embodiment, power supply conditions for each power supply facility (power receiving facility 10, private power generator (GC power supply) 20, uninterruptible power supply (UPS power supply) 30) are as follows: Suppose that the suppliable power is set to 100 [A], 30 [A], and 10 [A] as the allowable current, respectively. On the other hand, it is assumed that the loads of the lighting fixtures 301 to 303 corresponding to the systems A to F have current values as shown in FIGS. 6 to 8, respectively. It is assumed that the respective loads of the plurality of lighting fixtures 301 to 303 are measured by the plurality of ammeters 101 to 106 and correspond to the current values stored in the controller 50 .

In such a situation, the lighting system 1 of the present embodiment can provide , the priority order of system A to system F (lighting fixtures 301 to 303) is set, including setting changes.

For example, now, the priority of system A to system F is originally system F → system A → system B → system C → system D → system E, and the load of the lighting fixtures in each system is
System A: 10 [A]
System B: 5 [A]
System C: 10 [A]
System D: 15 [A]
System E: 5 [A]
System F: 5 [A]
and the total current value is 50 [A].

At this time, if the commercial power supply is normal without power failure, the allowable current of the power receiving equipment 10 is 100 [A]. Regardless, lighting fixtures 301 to 303 of all systems are lit. Specifically, under the control of the control device 50, the remote switches 201 to 206 are all turned on.

On the other hand, when the commercial power supply fails and only the private power generator 20 is selected and operated, the allowable current of the private power generator 20 is 30 [A] in light of the above conditions. It is not possible to light all of the fixtures 301-306. In this case, in the present embodiment, according to the preset priority (system F → system A → system B → system C → system D → system E), the lighting fixture up to the allowable limit of the allowable current 30 [A] to light up.

Specifically, since the allowable current of 30 [A], which is the allowable limit of the private power generator 20, is reached in the system F → system A → system B → system C, the system F → system A → system B → system C It controls lighting of the corresponding lighting fixtures 306, 301, 302, and 303 (see FIG. 7).

Furthermore, when the commercial power supply fails and only the uninterruptible power supply 30 is selected and operated instead of the private power generator 20, in light of the above conditions, the allowable current of the uninterruptible power supply 30 is 10 [A]. In this case as well, all the lighting fixtures 301 to 306 associated with the systems A to F cannot be turned on. Furthermore, in this case, according to the inherently set priority (system F→system A→system B→system C→system D→system E), system F, which has the first priority, has the second priority. is added, the required current value becomes 15 [A] at this stage. cannot be lit. Since the uninterruptible power supply 30 can secure an allowable current value of 10 [A] even though it has a small capacity, it may be possible to set lighting fixtures that can be turned on by devising the selection of lighting fixtures.

In the present embodiment, in view of the fact that such a situation can occur, when the uninterruptible power supply 30 is selected, the priority of the systems A to F is newly reviewed, and the optimum combination can be obtained. and

Specifically, considering the respective loads of the lighting fixtures 301 to 303, the priority order of the systems A to F is newly recombined as system F → system E → system D → system C → system B → system A. , the lighting fixtures 306 and 305 associated with the two systems, system F: 5 [A] and system E: 5 [A], are controlled to light up (see FIG. 8).

Thus, in the present embodiment, under the control of the control device 50, in order to hold the allowable current of each power supply facility and the ON state of each of the plurality of power supply systems A to F (the plurality of lighting fixtures 301 to 303) and can be respectively set, and based on the measurement result of each of the ammeters in the plurality of power supply systems, the allowable current amount, and the priority, any one of the plurality of power supply systems It is characterized by determining whether to maintain the ON state of the power supply system.

As described above, in the present embodiment, the control device 50 performs switching control of the power supply switching device 40 based on preset setting values. It may be set by an instruction.

In addition, in the present embodiment, the lighting system 1 is provided with a light control console (light control operation device) 70, and although not shown, a light control panel containing a plurality of dimmers and a light control panel connected to each dimmer. Lighting fixtures 301 to 306 whose dimming is controlled are used as a basic configuration.

<Action of First Embodiment>
Next, the power supply control of the lighting system 1 of this embodiment configured as described above will be described with reference to the flow charts shown in FIGS. 3 and 4. FIG. 3 and 4 show a series of control actions, and arrow numbers 1 and 2 are assumed to extend across the drawings.

As shown in FIG. 3, in the lighting system 1 of the present embodiment, when predetermined power is supplied from the power receiving equipment 10 to each load (step S1), the control device 50 controls a plurality of power supply systems (system A , system B, system C, system D, system E, and system F) to supply power to the plurality of lighting fixtures 301 to 303 (step S2).

After that, the control device 50 sequentially obtains the measurement results of the ammeters 101 to 106 of the plurality of systems A to F, respectively, and stores the results (step S3).

After the power supply to the plurality of lighting fixtures 301 to 303 is started, the control device 50 monitors the output voltage signal from the power receiving equipment current-voltage meter 11 (step S4), and the voltage signal output from the power supply equipment 10. is normal, continue to send ON signals to the remote switches 201 to 206 in the plurality of power supply systems (system A, system B, system C, system D, system E, system F), and the plurality of lighting fixtures 301 to 303 (step S8).

On the other hand, in the present embodiment, the control device 50 calculates the difference between the measurement results from the ammeters 101 to 106 of the systems A to F and the allowable current from the power supply equipment (in this case, the power receiving equipment 10). , the difference is acquired and displayed on a predetermined display unit (step S9), the process returns to step S4, and the output from the power receiving equipment 10 is continued to be monitored.

On the other hand, in step S4, when an abnormality in the output voltage signal from the power receiving equipment 10 is detected, for example, when the power supply from the power receiving equipment 10 stops due to a power failure, the control device 50 first controls the private power generator 20 (not shown in FIG. 3, the output voltage signal from the in-house power generator is indicated as a GC power source (step S5).

Specifically, it is determined whether or not the output voltage signal is greater than or equal to a predetermined threshold. This is because, in the present embodiment, when the power supply from the commercial power supply fails, the private power generator 20, which is an auxiliary power supply facility independent of the power receiving facility 10, operates. 10 to the private power generator 20 is determined to be normally performed, and if it is determined that the switching to the private power generator 20 is normally performed, the process proceeds to step S7, and the private power generator 20 is prioritized. A predetermined selection signal (a power supply switching signal for selecting the private power generator 20) is sent to the power supply switching device 40 so as to operate automatically (step S7), and the process proceeds to step S11 shown in FIG.

On the other hand, in step S5, if the output voltage signal from the private power generator 20 (shown as a GC power source in the figure) is below a predetermined threshold, it is determined that the private power generator 20 is not operating normally. A predetermined selection signal (uninterruptible power supply 30 is sent (step S6), and the process proceeds to step S11 shown in FIG.

Next, moving to FIG. 4, when the power supply from the commercial power supply is stopped due to a power failure and switched to the power supply by the private power generator 20 or the uninterruptible power supply 30, the control device 50 sets the priority 1 in step S11. The total load current value of the system (in this case, all of the system A to system F) for which the first to sixth are set is compared with the allowable current of the private power generator 20 or the uninterruptible power supply 30 (step S11 ).

Note that the allowable current for the private power generator 20 or the uninterruptible power supply 30 is set to 30 [A] and 10 [A] in this embodiment (see FIGS. 7 and 8). In the explanation of the flowchart, the respective load current values related to the systems A to F (each of which has a priority of 1st to 6th) are the values set in FIGS. 7 and 8. shall not be limited.

In this step S11, if the sum of the load current values related to the first to sixth priority systems is lower than the allowable current related to the private power generator 20 or the uninterruptible power supply 30, the control device 50 prioritizes these The remote switches 201 to 206 associated with the systems for which the rankings 1 to 6 are set are turned on to turn on the lighting fixtures 301 to 303 (step S21). After that, as in step S9 described above, the control device 50 receives the measurement results from the ammeters 101 to 106 of the systems A to F and the power supply equipment (private power generator 20 or uninterruptible power supply 30). A difference from the current is calculated, the difference is acquired and displayed on a predetermined display unit (step S27), and the process returns to step S4 shown in FIG.

In the above step S11, if the total of the load current values related to the first to sixth priority systems exceeds the allowable current related to the private power generator 20 or the uninterruptible power supply 30, the control device 50 determines the priority The lighting fixtures related to the 6th system are turned off (step S12), and then the sum of the load current values related to the systems whose priorities are set to 1st to 5th, the private power generator 20 or the uninterruptible power supply 30 are compared (step S13).

In this step S13, if the total load current value of the system according to the first to fifth priorities is lower than the allowable current for the private power generator 20 or the uninterruptible power supply 30, the control device 50 prioritizes these The lighting fixtures associated with the systems ranked 1st to 5th are turned on (step S22). Thereafter, the control device 50 returns to step S4 shown in FIG. 3 through the process of step S27 described above.

In step S13, if the total load current value related to the first to fifth priority systems exceeds the allowable current related to the private power generator 20 or the uninterruptible power supply 30, the control device 50 determines the priority The lighting fixtures related to the fifth-ranked system are turned off (step S14), and then the sum of the load current values related to the systems for which the first to fourth priorities are set, the private power generator 20 or the uninterruptible power supply 30 are compared (step S15).

After that, the control device 50 performs the same processes as the above-described steps S11, S21, and S12 while decreasing the priority one by one (steps S16, S17, S18, S19, S20, S23, S24, S25, S26), a lighting fixture that can be lit within the allowable current range of the private power generator 20 or the uninterruptible power supply 30 is selected and controlled to be lit.

Also in the flowchart, as shown in the description related to FIG. 8 above, for example, when only the uninterruptible power supply 30 is operated, the priority of the system (lighting fixture) is newly rearranged to obtain the optimum You may control so that it may become a combination.

<Effects of the First Embodiment>
As described above, according to the present embodiment, each power supply equipment (power receiving equipment 10, private power generator 20, uninterruptible power supply 30) and each allowable current amount, and a plurality of power supply systems A to F The priority for maintaining the ON state of each of the plurality of lighting fixtures 301 to 303 can be set, and the measurement results of the ammeters 101 to 106 in the plurality of power supply systems, the allowable current amount, and , based on the priority, control is performed to determine which of the plurality of power supply systems is to be maintained in the on state, thereby accurately controlling the brightness of the lighting load during a power failure in a television studio or the like. can be implemented.

In addition, the control device 50 controls the allowable current amount related to each power supply equipment (power receiving equipment 10, private power generator 20, uninterruptible power supply 30), and the plurality of lighting fixtures 301 to 303 (system A to system F). You may have the function which can set the said priority which concerns arbitrarily.

In this case, the control device 50 has a predetermined operation unit, and is connected to each power supply facility (power receiving facility 10, private power generator 20, uninterruptible power supply 30), or a plurality of lighting fixtures 301 to 303 (system A ~ System F), or according to the environment of the studio where it is installed, the allowable current amount of these power supply equipment, lighting equipment (system A ~ system F ) can be arbitrarily set.

In addition, the above-mentioned allowable current amount and priority are configured to be set by an external setting device as shown in FIG. 2, for example, an instruction from a control room outside the studio, or an instruction via a network such as the Internet. You may

Furthermore, in the present embodiment, the status of each power supply facility (power receiving facility 10, private power generator 20, uninterruptible power supply 30) is connected to the power receiving facility 10, private power generator 20, uninterruptible power supply 30, respectively. Although the determination is made by detecting the voltage value by the current-voltage meter 11 for power receiving equipment, the current-voltage meter 21 for auxiliary power supply equipment, and the current-voltage meter 31 for uninterruptible power supply equipment, other indication signals, such as , presence or absence of power failure of the commercial power supply, by detecting flags etc. indicating the operation status of the private power generator 20 and uninterruptible power supply 30, or by acquiring sensor signals etc. indicating other states, these power supply facilities The status of (the power receiving equipment 10, the private power generator 20, the uninterruptible power supply 30) may be determined.

(Second embodiment)
(Constitution)
Next, a second embodiment of the invention will be described.

The lighting system of the second embodiment has the same basic configuration as the first embodiment, and controls on/off of each power supply facility (power receiving facility 10, private power generator 20, uninterruptible power supply 30). It is characterized in that it further has a relay switch function. Since other configurations are the same as those of the first embodiment, only differences from the first embodiment will be explained here, and explanations of common parts will be omitted.

FIG. 9 is a block diagram showing the configuration of a power supply system that supplies power to lighting fixtures in the lighting system according to the second embodiment.

As shown in FIG. 9, the lighting system 1 according to the second embodiment includes relay switches 12 and 22 for controlling ON/OFF of power supply equipment (power receiving equipment 10, private power generator 20, uninterruptible power supply 30), respectively. , 32 are connected to make it possible to more accurately control the operation of each power supply facility.

<Effects of Second Embodiment>
According to the second embodiment, in addition to the effects of the first embodiment, it is possible to more reliably control the on/off of each power supply facility (power receiving facility 10, private power generator 20, uninterruptible power supply 30). Therefore, in particular, when the commercial power supply fails, the operation control of the private power generator 20 and the uninterruptible power supply 30 can be executed more quickly and accurately, so that the plurality of lighting fixtures 301 to 303 related to the systems A to F lighting control can also be performed more precisely.

The present invention is not limited to the above-described embodiments, and various modifications and alterations are possible without departing from the gist of the present invention.

1: Lighting system 10: Power receiving equipment 11: Current and voltage meter for power receiving equipment 20: Auxiliary power supply equipment (private power generator)
21: Current and voltage meter for auxiliary power equipment (current and voltage meter for private power generator)
30: Uninterruptible power supply (uninterruptible power supply)
31: Current-Voltmeter for Uninterruptible Power Supply (Current-Voltmeter for Uninterruptible Power Supply)
40: Power supply switching device 50: Control devices 101 to 106: Ammeter 201 for each of the plurality of systems: Remote switch 301 for each of the plurality of systems: Lighting fixture 60 for each of the plurality of systems: Setting device 70: Dimming operation device

Claims (7)

A power receiving facility that receives commercial power supply from an electric power company and supplies a predetermined power supply to a load;
Auxiliary power supply equipment capable of supplying a predetermined power supply to a load in the event of a power failure of the commercial power supply;
an uninterruptible power supply facility capable of supplying a predetermined power supply to a load in the event of a power failure of the commercial power supply;
A current-voltage meter for power receiving equipment that has a function of measuring the current and voltage of the power supply supplied from the power receiving equipment and outputting the measured value;
A current-voltage meter for auxiliary power supply equipment, which has a function of measuring the current and voltage of the power supply supplied from the auxiliary power supply equipment and outputting the measured value;
A current-voltage meter for uninterruptible power supply equipment having a function of measuring the current and voltage of the power supply supplied from the uninterruptible power supply equipment and outputting the measured value;
A function of selecting any one of the power supplies supplied from the power receiving equipment, the auxiliary power supply equipment and the uninterruptible power supply equipment, and connecting any of the equipment related to the selected power supply to a plurality of downstream power supply systems. a power switching device having a;
a plurality of ammeters for measuring currents of power supplies respectively supplied from the plurality of power supply systems branched from the power switching device;
a plurality of remote switches respectively arranged in the plurality of power supply systems and individually controlling on/off of the plurality of power supply systems;
a plurality of lighting fixtures respectively connected as loads to the plurality of power supply systems;
Acquire the measured values respectively measured by the current-voltage meter for the power receiving equipment, the current-voltage meter for the auxiliary power supply equipment, and the current-voltage meter for the uninterruptible power supply equipment, and based on the obtained measured values, the power receiving equipment, the auxiliary determining the power supply state of the power supply equipment and the uninterruptible power supply equipment, and outputting a selection signal for selecting and switching each of the equipment to the power supply switching device based on a preset setting value; , a control device having a function of outputting a control signal for controlling on/off of each of the plurality of remote switches. The control device can set at least an allowable current amount of each of the auxiliary power supply equipment and the uninterruptible power supply equipment and a priority for maintaining the ON state of each of the plurality of power supply systems, and the plurality of determining which of the plurality of power supply systems to maintain the ON state based on the measurement result of each of the ammeters in the power supply systems, the allowable current amount, and the priority The lighting system of claim 1, characterized by: 3. The lighting system according to claim 1, wherein the control device has a function of arbitrarily setting the allowable current amount and the priority. 4. The lighting system according to any one of claims 1 to 3, wherein the allowable current amount and the priority can be set by an instruction from an external device. The lighting system according to any one of claims 1 to 4, wherein the state of the power receiving equipment, the auxiliary power supply equipment, the uninterruptible power supply equipment, or the plurality of power supply systems is detected by a predetermined instruction signal. . 6. The lighting system according to any one of claims 1 to 5, further comprising a function of displaying a measured value, a margin for an allowable current amount, and the like. a step in which the power receiving facility receives commercial power supply from the electric power company and supplies a predetermined power supply to the load;
an auxiliary power supply facility supplying a predetermined power supply to a load in the event of a power failure of the commercial power supply;
an uninterruptible power supply supplying a predetermined power supply to a load when the commercial power supply fails;
a step of measuring the current and voltage of the power supply supplied from the power receiving equipment by the current-voltage meter for the power receiving equipment and outputting the measured values;
A step of measuring the current and voltage of the power supply supplied from the auxiliary power supply facility by the current-voltage meter for the auxiliary power supply facility and outputting the measured value;
a current-voltage meter for uninterruptible power supply equipment measuring the current and voltage of the power supply supplied from the uninterruptible power supply equipment and outputting the measured values;
A power switching device selects any one of the power supplies supplied from the power receiving facility, the auxiliary power supply facility, and the uninterruptible power supply facility, and a plurality of power supplies downstream from any of the facilities related to the selected power supply supplying a plurality of power supply systems to a system, each having a plurality of luminaires connected as loads;
a step of using a plurality of ammeters respectively arranged in the plurality of power supply systems to measure currents of power sources respectively supplied from the plurality of power supply systems branched from the power switching device;
a step in which a plurality of remote switches respectively arranged in the plurality of power supply systems individually control on/off of the plurality of power supply systems;
a step in which the control device obtains measured values respectively measured by the current-voltage meter for the power receiving equipment, the current-voltage meter for the auxiliary power supply equipment, and the current-voltage meter for the uninterruptible power supply equipment;
a step in which the control device determines a power supply state related to the power receiving equipment, the auxiliary power equipment and the uninterruptible power equipment based on the acquired measured values;
a step in which the control device outputs a selection signal for selecting and switching each of the facilities to the power supply switching device based on a preset setting value;
A lighting control method, comprising: outputting a control signal for controlling on/off of each of the plurality of remote switches by the control device.

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