JP6914112B2 - Lighting system, control device, lighting control method and lighting control program - Google Patents

Description

The present invention relates to a lighting system used in a stadium where a ball is used for a game such as soccer.

With lighting equipment for soccer stadiums, it is not possible to install a floodlight above the competition surface. For this reason, in the lighting device for a soccer stadium, a steel tower or a concrete support is erected around the competition surface, a floodlight is installed, and the irradiation direction is determined so that the illuminance of the competition surface is as uniform as possible.
There are two types of floodlights in the soccer stadium, one is a side arrangement in which about four places are arranged on each side in the longitudinal direction of the competition surface, and the other is a corner arrangement in which the floodlights are arranged at the four corners of the competition surface. The initial equipment cost for the corner layout is lower than that for the side layout. However, in the corner arrangement, the four corners of the competition surface tend to be uneven compared to the side arrangement. The side arrangement can increase the uniformity of the illuminance on the competition surface.

Japanese Unexamined Patent Publication No. 2014-82090

However, in the side arrangement, the number of columns is larger than in the corner arrangement, and the initial equipment cost is high. In addition, in the side arrangement, the pillars in the middle part in the longitudinal direction are built in the spectator seat space, which hinders the watching of the competition. Therefore, in the side arrangement, the floodlights arranged in the intermediate portion in the longitudinal direction are often attached to the roof provided in the spectator seats without providing the columns. Since such a side arrangement depends on the structure of the soccer stadium, it is difficult to adopt it in all soccer stadiums.
In a soccer field where floodlights are arranged in corners, the illuminance at the four corners of the competition surface is lower than that in the central part. For this reason, it is difficult to see the ball and the person at the four corners of the competition surface, which is not preferable for the athlete and the spectator.

An object of the present invention is to provide a lighting system preferable for a player and a spectator by ensuring the illuminance around the ball.

The lighting system according to the present invention is a lighting system that irradiates an irradiation target area using GPS (Global Positioning System), and receives and receives a floodlight that irradiates the irradiation target area and position information indicating a current position. It is irradiated from the floodlight based on the GPS receiver that transmits the position information, the position acquisition unit that receives the position information transmitted from the GPS receiver, and the position information received by the position acquisition unit. Control information for controlling the orientation of the floodlight is generated so that the light is emitted toward the current position of the GPS receiver indicated by the position information, and the generated control information is transmitted to the floodlight. It is equipped with a lighting control unit.

According to the lighting system according to the present invention, the orientation of the floodlight can be controlled so that the light emitted from the floodlight is directed toward the current position of the GPS receiver indicated by the position information. Therefore, according to the lighting system according to the present invention, it is possible to secure a certain level or more of the illuminance around the GPS receiver.

The block diagram of the lighting system 500 which concerns on Embodiment 1. FIG. It is a figure which shows the example of the arrangement of a plurality of lighting devices 5 in a stadium, (a) is an example of a floodlight arrangement and an illuminance distribution map of a side arrangement, (b) is an example of the arrangement of a floodlight, and an illuminance distribution map of a corner arrangement. The schematic diagram which shows the structure of the lighting apparatus 5 which concerns on Embodiment 1. FIG. A side view of the floodlight 4 according to the first embodiment. The front view of the floodlight 4 which concerns on Embodiment 1. FIG. The plan view of the floodlight 4 which concerns on Embodiment 1. FIG. The figure which shows the lighting control method by the lighting system 500 which concerns on Embodiment 1. FIG. The figure which shows the optical axis direction of the lighting device 5 and the illuminance distribution of the competition surface 2 when the ball 20 is located in the center of the competition surface 2. FIG. 7 is a cross-sectional view taken along the line II of FIG. The figure which shows the optical axis direction of the lighting device 5 and the illuminance distribution of the competition surface 2 when the ball 20 is located at the corner of the competition surface 2. FIG. 10 is a cross-sectional view taken along the line I'-I'. The block diagram of the lighting system 500a which concerns on Embodiment 2. FIG. The figure which shows the state which divided the competition surface 2 into three areas (a), (b), and (c). Illuminance distribution when the ball 20 is located in (a). Illuminance distribution when the ball 20 is located in (b). The figure which shows the state which divided the competition surface 2 into five areas (a), (b), (c), (d), and (e). Illuminance distribution when the ball is located in (b). Illuminance distribution when the ball is located in (c). The figure which shows the lighting control method by the lighting system 500 which concerns on Embodiment 2. FIG. The figure which shows an example of the area information 25 which concerns on Embodiment 2. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same or corresponding parts are designated by the same reference numerals. In the description of the embodiment, the description will be omitted or simplified as appropriate for the same or corresponding parts.
Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one. In addition, when the directions or positions such as top, bottom, left, right, front, back, front, and back are indicated in the description of the embodiment, those notations are described as such for convenience of explanation. It does not limit the arrangement and orientation of devices, appliances, or parts.

Embodiment 1.
The configuration of the lighting system 500 according to the present embodiment will be described with reference to FIG.
The lighting system 500 according to the present embodiment irradiates the irradiation target area using GPS (Global Positioning System). As a specific example, the lighting system 500 is used in a stadium where a ball-based competition is performed. The lighting system 500 can adjust the optical axis of the floodlight 4 in real time in the stadium.
The lighting system 500 includes a control device 10, a ball 20, and a plurality of lighting devices 5.
The control device 10 receives the position information 210 transmitted from the ball 20 and generates control information 121 for moving each lighting device 5 according to the received position information 210. Then, the control device 10 transmits the control information 121 to each lighting device 5.
The ball 20 has a built-in GPS (Global Positioning System) receiver 21. The GPS receiver 21 receives the position information 210 indicating the current position of the ball 20, and transmits the received position information 210 to the control device 10.
The plurality of lighting devices 5 are installed around the stadium. The lighting device 5 has a support column and a plurality of floodlights 4 arranged at the upper end of the support column. That is, the floodlight 4 is arranged around the stadium. The lighting device 5 adjusts the optical axes of the plurality of floodlights 4 based on the control information 121 transmitted from the control device 10, and irradiates the light in a predetermined direction on the competition surface of the stadium.

The control device 10 is a computer. The control device 10 includes a processor 910 and other hardware such as a memory 921, an auxiliary storage device 922, and a communication device 950. The processor 910 is connected to other hardware via a signal line and controls these other hardware.
The control device 10 includes a position acquisition unit 11 and a lighting control unit 12 as functional elements. The functions of the position acquisition unit 11 and the lighting control unit 12 are realized by software.

The processor 910 is a device that executes a lighting control program. The lighting control program is a program that realizes the functions of the position acquisition unit 11 and the lighting control unit 12.
The processor 910 is an IC (Integrated Circuit) that performs arithmetic processing. Specific examples of the processor 910 are a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and a GPU (Graphics Processing Unit).

The memory 921 is a storage device that temporarily stores data. A specific example of the memory 921 is a SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory).

The auxiliary storage device 922 is a storage device that stores data. A specific example of the auxiliary storage device 922 is an HDD. Further, the auxiliary storage device 922 may be a portable storage medium such as an SD (registered trademark) memory card, CF, NAND flash, flexible disc, optical disk, compact disc, Blu-ray (registered trademark) disc, or DVD. HDD is an abbreviation for Hard Disk Drive. SD® is an abbreviation for Secure Digital. CF is an abbreviation for CompactFlash. DVD is an abbreviation for Digital Versatile Disc.

The communication device 950 is a device that communicates with another device via a network. The communication device 950 has a receiver and a transmitter. The communication device 950 is connected to a communication network such as a LAN, the Internet, or a telephone line by wire or wirelessly. Specifically, the communication device 950 is a communication chip or a NIC (Network Interface Card).

The lighting control program is read into processor 910 and executed by processor 910. In the memory 921, not only the lighting control program but also the OS (Operating System) is stored. The processor 910 executes the lighting control program while executing the OS. The lighting control program and the OS may be stored in the auxiliary storage device 922. The lighting control program and the OS stored in the auxiliary storage device 922 are loaded into the memory 921 and executed by the processor 910. A part or all of the lighting control program may be incorporated in the OS.

The control device 10 may include a plurality of processors that replace the processor 910. These plurality of processors share the execution of the lighting control program. Each processor, like the processor 910, is a device that executes a lighting control program.

Data, information, signal values and variable values used, processed or output by the lighting control program are stored in a memory 921, an auxiliary storage device 922, or a register or cache memory in the processor 910.

The lighting control program causes the computer to execute each process, each procedure, or each process in which the "unit" of each unit of the position acquisition unit 11 and the lighting control unit 12 is read as "process", "procedure", or "process". The lighting control method is a method performed by the control device 10 executing a lighting control program.
The lighting control program may be recorded and provided on a computer-readable storage medium, or may be provided as a program product.

2A and 2B are views showing an example of arrangement of a plurality of lighting devices 5 in a stadium, where FIG. 2A is an example of arrangement of floodlights arranged sideways and an illuminance distribution diagram, and FIG. It is a figure.
In FIG. 2, a soccer stadium where soccer is played is assumed as a stadium where ball games are played.
As shown in FIG. 2A, in the side arrangement, the columns 1 are arranged at about four places on each side on both sides of the competition surface 2 in the longitudinal direction. Further, in the side arrangement, the appropriate illuminance range 3, which is a range showing the appropriate illuminance, covers the entire competition surface 2. That is, in the side arrangement, the entire competition surface 2 can always be set to the appropriate illuminance range 3. The competition surface 2 is an example of an irradiation target area.
On the other hand, as shown in FIG. 2B, in the corner arrangement, the columns 1 are arranged at the four corners of the competition surface. Further, the appropriate illuminance range 3 does not include the four corners of the competition surface 2. That is, it can be seen that in the corner arrangement, the illuminance at the four corners of the competition surface 2 is lower than that in the central portion as compared with the side arrangement.

FIG. 3 is a schematic view showing the configuration of the lighting device 5 according to the present embodiment.
The lighting device 5 includes a support column 1 and a plurality of floodlights 4 arranged at the upper end of the support column 1. In FIG. 3, 27 floodlights 4 are installed per column.

FIG. 4 is a side view of the floodlight 4 according to the present embodiment. FIG. 5 is a front view of the floodlight 4 according to the present embodiment. FIG. 6 is a plan view of the floodlight 4 according to the present embodiment.
The optical axis of the floodlight 4 is defined as the optical axis 41. The lighting device 5 includes a horizontal swivel actuator 43 and a prone swivel actuator 45 for adjusting the optical axis 41 for each floodlight 4.
The horizontal swivel actuator 43 horizontally swivels the floodlight 4 to a predetermined horizontal swivel angle around the horizontal swivel shaft 42. The prone swivel actuator 45 swivels the floodlight 4 at a predetermined prone swivel angle around the prone swivel shaft 44.

*** Explanation of operation ***
Next, the lighting control method by the lighting system 500 according to the present embodiment will be described with reference to FIG. 7.

<Position acquisition process>
In step S101, the GPS receiver 21 built in the ball 20 transmits the position information 210 indicating the current position of the ball to the control device 10.
In step S102, the position acquisition unit 11 receives the position information 210 transmitted from the GPS receiver 21 built in the ball 20 via the communication device 950.

<Lighting control processing>
In step S103, the lighting control unit 12 generates control information 121 for controlling the orientation of the floodlight 4 based on the position information 210 received by the position acquisition unit 11. The control information 121 is information for controlling the direction of the floodlight 4 so that the light emitted from the floodlight 4 is irradiated toward the current position of the ball 20 indicated by the position information 210.
Specifically, the lighting control unit 12 calculates the horizontal turning angle and the prone turning angle of the floodlight 4 so that the optical axis 41 of the floodlight 4 faces the current position of the ball 20. Then, the lighting control unit 12 generates control information 121 including the calculated horizontal turning angle and the prone turning angle.
This will be described in more detail. The lighting control unit 12 generates control information 121 for moving each lighting device 5 based on the position information 210 acquired by the position acquisition unit 11. The lighting control unit 12 is horizontal for each of the plurality of floodlights 4 so that each optical axis 41 of the plurality of floodlights 4 included in each lighting device 5 points to a position on the competition surface 2 represented by the position information 210. Calculate the turning angle and the prone turning angle. That is, the illumination control unit 12 can individually control the optical axis of each of the plurality of floodlights 4. The lighting control unit 12 generates control information 121 including the calculated horizontal turning angle and prone turning angle.

In step S104, the lighting control unit 12 transmits the generated control information 121 to each floodlight 4 of each lighting device 5 via the communication device 950.
In step S105, the lighting device 5 adjusts each optical axis of the plurality of floodlights 4 based on the control information 121 received from the control device 10. That is, the floodlight 4 makes a horizontal turn and a prone turn based on the horizontal turning angle and the prone turning angle included in the control information 121. As a result, the floodlight 4 determines the direction of irradiating the light based on the control information 121 transmitted from the lighting control unit 12.
The lighting device 5 uses the horizontal swivel actuator 43 to swivel the floodlight 4 horizontally to the horizontal swivel angle included in the control information 121. The lighting device 5 uses the prone swivel actuator 45 to swivel the floodlight 4 up to the prone swivel angle included in the control information 121. In this way, the lighting device 5 irradiates the competition surface 2 based on the control information 121.

FIG. 8 is a diagram showing the optical axis direction of the lighting device 5 and the illuminance distribution of the competition surface 2 when the ball 20 is located at the center of the competition surface 2. Further, FIG. 9 is a diagram showing I-I of FIG. It is a cross-sectional view.
In FIGS. 8 and 9, four lighting devices 5a, 5b, 5c, and 5d are installed in the stadium. The optical axes of the lighting devices 5a, 5b, 5c, and 5d are defined as the optical axes 7a, 7b, 7c, and 7d.
As shown in FIGS. 8 and 9, all the optical axes 7a, 7b, 7c, 7d are controlled to face the ball 20 located at the center of the competition surface 2. Therefore, the appropriate illuminance range 3 has a symmetrical shape in the longitudinal direction and the lateral direction.

FIG. 10 is a diagram showing the optical axis direction of the lighting device 5 and the illuminance distribution of the competition surface 2 when the ball 20 is located at the corners, that is, the four corners of the competition surface 2. FIG. 11 is an I'-I'cross section of FIG.
As shown in FIGS. 10 and 11, when the ball 20 is located at the corner of the competition surface 2, each of the lighting devices 5a, 5b, 5c, and 5d has its own optical axes 7a, 7b, 7c, and 7d. It is controlled to face the periphery of the ball 20. Therefore, the competition surface 2 around the ball 20 has an appropriate illuminance range 3. This can provide a favorable view for the athlete and the spectator.

*** Other configurations ***
<Modification example 1>
In the present embodiment, a soccer stadium and an example have been described as a ball stadium to which the lighting system 500 is applied. However, this embodiment can also be applied to other ball games such as rugby.

<Modification 2>
The control device 10 of FIG. 1 may include an input interface and an output interface. The input interface is a port connected to an input device such as a mouse, keyboard, or touch panel. Specifically, the input interface is a USB (Universal Serial Bus) terminal. The input interface may be a port connected to a LAN (Local Area Network). The output interface is a port to which a cable of an output device such as a display is connected. Specifically, the output interface is a USB terminal or an HDMI (registered trademark) (High Definition Multimedia Interface) terminal. Specifically, the display is an LCD (Liquid Crystal Display).

<Modification example 3>
In the present embodiment, the function of the control device 10 is realized by software, but as a modification, the function of the control device 10 may be realized by hardware.
The control device 10 may include an electronic circuit instead of the processor 910.

The electronic circuit is a dedicated circuit that realizes the functions of the position acquisition unit 11 and the lighting control unit 12.
The electronic circuit is specifically a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA, an ASIC, or an FPGA. GA is an abbreviation for Gate Array. ASIC is an abbreviation for Application Special Integrated Circuit. FPGA is an abbreviation for Field-Programmable Gate Array.
The functions of the components of the control device 10 may be realized by one electronic circuit, or may be distributed and realized by a plurality of electronic circuits.
As another modification, some functions of the components of the control device 10 may be realized by an electronic circuit, and the remaining functions may be realized by software.

Each of the processor and the electronic circuit is also called a processing circuit. That is, in the control device 10, the functions of the position acquisition unit 11 and the lighting control unit 12 are realized by the processing circuit.

In the control device 10, the "unit" of the position acquisition unit 11 and the lighting control unit 12 may be read as "process". Further, the "process" of the lighting control process may be read as "program", "program product", or "computer-readable storage medium on which the program is recorded".

*** Explanation of the effect of this embodiment ***
In the lighting system 500 according to the present embodiment, since the floodlight that illuminates the competition surface moves in conjunction with the GPS signal, the illuminance distribution is more comfortable for the athlete and the spectator.
Further, in the lighting system 500 according to the present embodiment, a GPS device is built in the ball used for the competition, and the position of the ball on the competition surface during the competition is constantly grasped by the GPS system.
Further, in the lighting system 500 according to the present embodiment, the floodlight that illuminates the competition surface has a function of receiving GPS signals from the ball and moving to the elevation angle and the horizontal turning angle included in the control information.
Further, in the lighting system 500 according to the present embodiment, the floodlight has a function of acquiring the position information of the ball by receiving the GPS signal and moving the optical axis so as to secure the competition surface illuminance around the ball at a constant value. Has.
Further, in the lighting system 500 according to the present embodiment, each of the floodlights mounted on the columns of the lighting device has a function of individually moving the optical axis.

As described above, according to the lighting system 500 according to the present embodiment, in the soccer stadium where the floodlights that illuminate the competition surface are arranged in the corners, the position information of the ball is transmitted to the control device by the GPS device built in the ball. Will be sent. As a result, according to the lighting system 500 according to the present embodiment, the control device can instantly grasp the ball position and move the optical axis of the floodlight. By moving the optical axis of the floodlight instantaneously in this way, the illuminance distribution on the competition surface can be changed, and the illuminance around the ball can be secured above a certain level.
Further, according to the lighting system 500 according to the present embodiment, even when the ball moves to the four corners of the competition surface, it is possible to prevent the illuminance around the ball from decreasing, which is preferable to the player or the spectator. Can be provided.

Embodiment 2.
In this embodiment, the points different from those in the first embodiment will be described.

*** Explanation of configuration ***
FIG. 12 is a diagram showing a lighting system 500a according to the present embodiment. The same reference numerals are given to the same configurations as those in the first embodiment, and the description thereof will be omitted.
In the present embodiment, the function of the lighting control unit 12a of the control device 10 is different from that of the first embodiment. Further, the area information 25 is stored in the memory 921. The area information 25 includes an area range representing each area of a plurality of areas obtained by dividing the competition surface 2 of the stadium.
In the present embodiment, the lighting system 500a that limits the illuminance distribution by dividing the competition surface 2 into areas will be described.

FIG. 13 shows a state in which the competition surface 2 is divided into three areas (a), (b), and (c). At this time, the area information 25 is set with position information representing each area of the three areas (a), (b), and (c). Specifically, the coordinates of the vertices of each area are set.

FIG. 14 shows the illuminance distribution when the ball 20 is located in (a). The illuminance distribution when the ball is located in (c) has a shape in which the illuminance distribution in FIG. 14 is symmetrical with respect to the central axis 31 along the vertical direction of the competition surface 2. FIG. 15 shows the illuminance distribution when the ball 20 is located in (b).

In the present embodiment, the illuminating device 5a and the floodlight 4 of the illuminating device 5b are adjusted so as to have a vertically symmetrical illuminance distribution on the central axis 32 along the horizontal direction of the competition surface 2. Similarly, the illuminating device 5c and the floodlight 4 of the illuminating device 5d are also adjusted so as to have a vertically symmetrical illuminance distribution on the central axis 32 along the horizontal direction of the competition surface 2.

FIG. 16 shows a state in which the competition surface 2 is divided into five areas (a), (b), (c), (d), and (e). At this time, the area information 25 is set with position information representing each area of the five areas (a), (b), (c), (d), and (e). Specifically, the coordinates of the vertices of each area are set.

FIG. 17 shows the illuminance distribution when the ball is located in (b). The illuminance distribution when the ball is located in (a) has a shape in which the illuminance distribution in FIG. 17 is vertically symmetrical with respect to the central axis 32 along the horizontal direction. The illuminance distribution when the ball is located in (e) has a shape in which the illuminance distribution in FIG. 17 is symmetrical with respect to the central axis 31 along the vertical direction. The illuminance distribution when the ball is located in (d) has a shape obtained by rotating the illuminance distribution in FIG. 17 by 180 degrees at the center point 0 of the competition surface 2. FIG. 18 shows the illuminance distribution when the ball is located in (c).

*** Explanation of operation ***
Next, the lighting control method by the lighting system 500a according to the present embodiment will be described with reference to FIG.
In the present embodiment, the lighting control unit 12a generates control information 121a for controlling the direction of the floodlight 4 based on the position information 210 and the area information 25. The control information 121a is information for controlling the direction of the floodlight 4 so that the light emitted from the floodlight 4 is irradiated toward the area including the current position of the ball 20 indicated by the position information 210.
The area information 25 includes a horizontal turning angle and a prone turning angle of each floodlight 4 when irradiating light toward an area range representing each area of a plurality of areas.
The lighting control unit 12a extracts from the area information 25 a horizontal turning angle and a prone turning angle corresponding to the area including the position indicated by the position information 210. Then, the lighting control unit 12a generates control information 121a including the extracted horizontal turning angle and prone turning angle. At this time, when the area including the current position of the ball 20 is not the same as the area determined last time, the lighting control unit 12a determines the horizontal turning angle and the prone turning angle corresponding to the area including the current position of the ball 20. Extract. Then, the lighting control unit 12a generates control information 121a including the extracted horizontal turning angle and prone turning angle. If the area including the current position of the ball 20 is the same as the area determined last time, the lighting control unit 12a does nothing and waits for the reception of the next position information 210.

This will be described in more detail with reference to FIG.
The processes of steps S201 and S202 are the same as the processes of steps S101 and S102 described in the first embodiment.

In step S203, the lighting control unit 12a compares the position information 210 with the area information 25 and determines the area where the ball 20 is located.
In step S204, the lighting control unit 12a determines whether or not the area where the ball 20 is located is the same as the area determined last time. If the area where the ball 20 is located is the same as the previously determined area, the process proceeds to step S206. If the area where the ball 20 is located is different from the previously determined area, the process proceeds to step S205.

In step S205, the lighting control unit 12a generates control information 121a corresponding to the area where the ball 20 is located. The lighting control unit 12a transmits the generated control information 121a to the lighting device 5. The control information 121a corresponding to the area where the ball 20 is located may be included in the area information 25.

FIG. 20 is a diagram showing an example of area information 25 according to the present embodiment.
The area name, the area range, and the control information of each lighting device 5 are set in the area information 25. Specifically, the name of the area is information such as (a), (b), and (c). The area range is the vertex coordinates of the corresponding area. The control information of each lighting device 5 includes a horizontal turning angle and a prone turning angle of the floodlight 4 set in advance so as to uniformly irradiate the corresponding area. Similar to the first embodiment, the plurality of floodlights 4 included in the lighting device 5 are individually controlled. Therefore, control information is set for each of the plurality of floodlights 4 included in the corresponding lighting device 5 for each lighting device 5.

In step S206, the lighting device 5 adjusts each optical axis of the plurality of floodlights 4 based on the control information 121a received from the control device 10. The method of adjusting the optical axis is the same as that of the first embodiment. That is, the lighting device 5 irradiates the competition surface 2 based on the control information 121a. If the area where the ball 20 is located is the same as the area determined last time, the same area as the previous time is continuously irradiated.

*** Explanation of the effect of this embodiment ***
In the lighting system 500a according to the present embodiment, the constraint condition of the movable mechanism due to the movement of the floodlight can be reduced by dividing the area of the competition surface. According to the lighting system 500a according to the present embodiment, the movement of the floodlight of the lighting device can be patterned instead of the complicated movement as in the case of real time.

In the first and second embodiments, each part of the control device has been described as an independent functional block. However, the configuration of the control device does not have to be the configuration as in the above-described embodiment. The functional block of the control device may have any configuration as long as it can realize the functions described in the above-described embodiment.

Of the first and second embodiments, a plurality of parts may be combined and carried out. Alternatively, one part of these embodiments may be implemented. In addition, these embodiments may be implemented in any combination as a whole or partially.
It should be noted that the embodiments described above are essentially preferred examples and are not intended to limit the scope of the invention, the scope of application of the invention, and the scope of use of the invention. The above-described embodiment can be variously modified as needed. For example, the lighting system according to the above-described embodiment may be applied to stage lighting. By setting the stage as an irradiation target area and incorporating a GPS receiver in a person or an object on the stage, the lighting system according to the above-described embodiment can be applied to stage lighting.

1 prop, 2 competition surface, 3 appropriate illuminance range, 4 floodlight, 5,5a, 5b, 5c, 5d lighting device, 7a, 7b, 7c, 7d optical axis, 10 control device, 11 position acquisition unit, 12, 12a lighting Control unit, 20 balls, 21 GPS receiver, 210 position information, 25 area information, 31, 32 central axis, 41 optical axis, 42 horizontal swivel axis, 43 horizontal swivel actuator, 44 prone swivel axis, 45 prone swivel Actuator, 121,121a control information, 500,500a lighting system, 910 processor, 921 memory, 922 auxiliary storage device, 950 communication device.

Claims (9)

In a lighting system that irradiates an irradiation target area using GPS (Global Positioning System)
A floodlight that irradiates the irradiation target area and
A GPS receiver that receives position information indicating the current position and transmits the received position information.
A position acquisition unit that receives the position information transmitted from the GPS receiver, and
The orientation of the floodlight so that the light emitted from the floodlight is directed toward the current position of the GPS receiver indicated by the position information based on the position information received by the position acquisition unit. A lighting control unit that generates control information for controlling the above and transmits the generated control information to the floodlight .
It is provided with a memory for storing area information including an area range representing each area of a plurality of areas obtained by dividing the irradiation target area.
The lighting control unit
The orientation of the floodlight so that the light emitted from the floodlight based on the position information and the area information is directed toward the area including the current position of the GPS receiver indicated by the position information. A lighting system that generates the control information for controlling the control. The area information is
Includes the horizontal swivel angle and the prone swivel angle of the floodlight when irradiating light in the direction of an area range representing each area of a plurality of areas.
The lighting control unit
From the area information, an area including the current position of the GPS receiver indicated by the position information is determined, and the horizontal turning angle and the prone turning angle corresponding to the area including the current position of the GPS receiver are determined. The lighting system according to claim 1, which is extracted and generates the control information including the extracted horizontal turning angle and the prone turning angle. When the area including the current position of the GPS receiver is not the same as the area determined last time, the horizontal turning angle and the prone turning angle corresponding to the area including the current position of the GPS receiver are extracted. The lighting system according to claim 2 , wherein the control information including the extracted horizontal turning angle and the prone turning angle is generated. The floodlight
The lighting system according to any one of claims 1 to 3, wherein the direction of irradiating light is determined based on the control information transmitted from the lighting control unit. The lighting control unit
The horizontal turning angle and the prone turning angle of the floodlight are calculated so that the optical axis of the floodlight faces the current position of the GPS receiver, and the calculated horizontal turning angle and the prone turning angle are included. Generate control information,
The floodlight
The lighting system according to any one of claims 1 to 4, which makes a horizontal turn and a prone turn based on the horizontal turning angle and the prone turning angle included in the control information. The lighting system according to any one of claims 1 to 5 , wherein a plurality of the floodlights are arranged at the upper ends of columns arranged at each of the four corners of the irradiation target area. In a control device using GPS (Global Positioning System),
A position acquisition unit that receives position information indicating the current position of the GPS receiver from the GPS receiver, and
Based on the position information acquired by the position acquisition unit, the light emitted from the floodlights arranged around the irradiation target area is irradiated toward the current position of the GPS receiver indicated by the position information. A lighting control unit that generates control information for controlling the orientation of the floodlight and transmits the generated control information to the floodlight .
It is provided with a memory for storing area information including an area range representing each area of a plurality of areas obtained by dividing the irradiation target area.
The lighting control unit
The orientation of the floodlight so that the light emitted from the floodlight based on the position information and the area information is directed toward the area including the current position of the GPS receiver indicated by the position information. A control device that generates the control information for controlling the control. In a lighting control method of a lighting system that irradiates an irradiation target area using GPS (Global Positioning System),
A floodlight is placed around the irradiation target area.
The GPS receiver receives the position information indicating the current position of the GPS receiver, transmits the received position information, and then transmits the received position information.
The lighting control unit so that the light emitted from the floodlight is emitted toward the current position of the GPS receiver indicated by the position information based on the position information transmitted from the GPS receiver. , Generate control information for controlling the orientation of the floodlight, and transmit the generated control information to the floodlight .
The lighting control unit emits light emitted from the floodlight based on the position information and area information including an area range representing each area of a plurality of areas obtained by dividing the irradiation target area. A lighting control method for generating the control information for controlling the orientation of the floodlight so that the area including the current position of the GPS receiver indicated by the position information is irradiated. In the lighting control program of the control device that irradiates the irradiation target area using GPS (Global Positioning System).
A position acquisition process for receiving position information indicating the current position of the GPS receiver from the GPS receiver, and
Based on the position information acquired by the position acquisition process, the light emitted from the floodlights arranged around the irradiation target area irradiates the current position of the GPS receiver indicated by the position information. It is a lighting control process that generates control information for controlling the orientation of the floodlight and transmits the generated control information to the floodlight, and divides the position information and the irradiation target area. Based on the area information including the area range representing each area of the plurality of areas obtained by the above, the light emitted from the floodlight is the area including the current position of the GPS receiver indicated by the position information. A lighting control program that causes the control device, which is a computer, to execute a lighting control process for generating the control information for controlling the orientation of the floodlight so that the light is emitted toward the direction.

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