JP5744675B2 - Lighting device and lighting system - Google Patents

Description

  The present invention relates to an illuminating device, an illuminating system, and a control device, and more particularly to an illuminating device, an illuminating system, and a control device that combine and output light from a plurality of light emitting means.

  Conventionally, various techniques for suppressing power consumption in lighting devices have been disclosed. For example, Patent Document 1 discloses a technique for turning on lighting with low power consumption even when the light color is unnatural when lighting is turned on in a place where there is no person for reasons of crime prevention. ing.

JP-A-10-144126

  As described above, it has been conventionally considered that it is difficult to suppress both power consumption and natural light color. If the light color becomes unnatural in the mode in which the power consumption is suppressed, the scene where the illumination is turned on in the mode is limited. For this reason, according to the prior art, it has been difficult to reduce power consumption in the lighting device.

  The present invention has been conceived in view of such circumstances, and an object of the present invention is to reduce power consumption while outputting light colors that are natural to humans in a lighting device.

An illumination device according to an aspect of the present disclosure includes a plurality of light emitting units having different emission colors, a combining unit for controlling and combining light output ratios of the plurality of light emitting units, and switching between a plurality of modes. The plurality of light emitting means includes a first light emitting means for outputting yellow light, a second light emitting means for outputting blue light, a third light emitting means for outputting red light, and a green light. The light emitting means for outputting the light of the first light emitting means and the second light emitting means for combining and outputting the light , the second light emitting means, the third light emitting means, and the fourth light emitting means. The light output from the light emitting means is combined and output, and the first light emitting means, the second light emitting means, the third light emitting means, and the light output from the fourth light emitting means are combined and output in a mode for control. The means is controlled by switching between the modes .

Preferably, in the chromaticity diagram, the light of the coordinates of the first light emitting means outputs the first coordinate, the light of the coordinates of the second light-emitting means outputs a second coordinate, the second light emitting unit and the third light emitting The coordinates of the RGB reference light in the mode of combining and outputting the light output from the first light emitting means and the fourth light emitting means are set as the third coordinates, and the combining means combines the lights output from the first light emitting means and the second light emitting means. In the mode to output, the light of the fourth coordinate is synthesized, and the fourth coordinate is a coordinate closest to the third coordinate on the line connecting the first coordinate and the second coordinate in the chromaticity diagram. It is .

Preferably, the control means switches the mode of the synthesizing means based on a control signal transmitted from a control device that is communicably connected to the lighting device .

Preferably, the control means switches the mode of the combining means based on the total amount of energy consumption in the home .

The synthesizing unit is configured to combine the light output from the first light emitting unit, the second light emitting unit, the third light emitting unit, and the fourth light emitting unit and output the combined light, and then output the second light emitting unit, the third light emitting unit, and the fourth light emitting unit. The output of the third light-emitting means and the fourth light-emitting means are decreased with respect to the reference light in the mode for combining and outputting the light output by the first light-emitting means, and the output of the first light-emitting means is increased. The light closest to the coordinates of the RGB reference light in the mode in which the light output from the light emitting means and the fourth light emitting means is combined and output is combined .

An illumination system according to another aspect of the present invention includes a plurality of light emitting units having different emission colors, a combining unit for controlling and combining light output ratios of the plurality of light emitting units, and switching between a plurality of modes. A lighting system including a lighting device including a control unit for controlling, and a control device connected to the lighting device in a communicable manner, wherein the plurality of light emitting units include a first light emitting unit that outputs yellow light, a blue light source, a second light emitting means for outputting light, a third light-emitting means for outputting a red light, and a fourth light-emitting means for outputting a green light, combining means, first light emitting means and the second light emitting means outputs A mode for combining and outputting the light to be output, a mode for combining and outputting the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means, the first light emitting means, the second light emitting means, and the third The lights output from the light emitting means and the fourth light emitting means are combined and output. Synthesized in over de, control means, between each mode is controlled by switching.

Preferably, in the chromaticity diagram, the coordinates of the light output from the first light emitting means are the first coordinates, the coordinates of the light output from the second light emitting means are the second coordinates, and the second light emitting means and the third light emitting The coordinates of the RGB reference light in the mode of combining and outputting the light output from the first light emitting means and the fourth light emitting means are set as the third coordinates, and the combining means combines the lights output from the first light emitting means and the second light emitting means. In the mode to output, the light of the fourth coordinate is synthesized, and the fourth coordinate is a coordinate closest to the third coordinate on the line connecting the first coordinate and the second coordinate in the chromaticity diagram. It is .

Preferably, the control means switches the mode of the synthesizing means based on the control signal transmitted from the control device .

Preferably, the control means switches the mode of the combining means based on the total amount of energy consumption in the home.
Preferably, the combining means outputs the third light emitting means and the fourth light emitting means in a mode in which the lights output from the first light emitting means, the second light emitting means, the third light emitting means, and the fourth light emitting means are combined and output. The light output closest to the coordinates of the RGB reference light in the mode in which the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means is combined and output. Synthesize .

  According to the present invention, light from a plurality of light sources including a plurality of light sources including a yellow light source with high visibility and good luminous efficiency is synthesized and output. As a result, it is possible to reduce power consumption while outputting light of a relatively natural color.

It is a figure which shows the specific example of a structure of the system for managing the energy consumption in a home containing the illuminating device concerning embodiment of this invention. It is a block diagram which shows the specific example of a structure of the electric equipment of FIG. It is a block diagram which shows the specific example of a structure of the illuminating device of FIG. It is xy chromaticity diagram for demonstrating the hue of the light output from the illuminating device of FIG. It is a figure which shows the relationship between the power consumption and illuminance in the illuminating device of FIG. It is a figure which shows the relationship between the power consumption and illuminance in the illuminating device of FIG. It is a figure for demonstrating the method for approaching the color of BY reference light in the illuminating device of FIG. 1 to the color of RGB reference light. It is a flowchart of the process performed in a control apparatus in order to switch the reference light output to the illuminating device of FIG. It is a figure for demonstrating concretely the content of the process demonstrated with reference to FIG. It is a figure for demonstrating the content of the process of the modification of FIG. It is a figure which shows the specific example of the modification of the system configuration | structure of FIG. It is a block diagram which shows the specific example of a structure of the electric equipment of FIG. It is a block diagram which shows the specific example of a structure of the illuminating device of FIG. It is xy chromaticity diagram for demonstrating the color of the light output from the modification of the illuminating device of FIG. It is a figure which shows the relationship between the power consumption and the illumination intensity in the modification of the illuminating device of FIG.

  Hereinafter, embodiments of a lighting device of the present invention will be described with reference to the drawings. In the following description, elements having the same function and action are denoted by the same reference numerals, and redundant description will not be repeated.

<System configuration>
FIG. 1 shows a system (HEMS (Home Energy Management System), hereinafter referred to as a system) 100 for managing energy consumption in a home, including a lighting device (or a lighting device control device) according to an embodiment. It is a figure which shows the specific example of a structure.

  With reference to FIG. 1, in this Embodiment, the general household appliance which can be connected to the communication line mentioned later as an electric equipment which consumes electric power is assumed, specifically, an air conditioner (henceforth an air conditioner), TVs and washing machines are assumed. The system 100 includes electric devices 10A, 10B, and 10C corresponding to these devices as the electric device 10.

Furthermore, the system 100 includes a lighting device 20 and a control device 30.
The electric device 10, the lighting device 20, and the control device 30 are connected by a communication line, form a network, and communicate with each other. For example, a wireless LAN (Local Area Network), ZigBee (registered trademark), Bluetooth (registered trademark), wired LAN, or PLC (Power Line Communication) is used as the network. In the following description, it is assumed that the communication between these is communication using the power cable 50, and the electric device 10, the lighting device 20, and the control device 30 are respectively communication modems (hereinafter referred to as PLC (Power Line)) as communication devices. Also referred to as “Communication”) 11, 21, 31. The PLCs 11 of the electric devices 10A, 10B, and 10C are indicated by PLCs 11A, 11B, and 11C. The PLC may be detachable from the main body of the device or apparatus, or may be a single function included in the main body. This applies even when the communication device is a wireless LAN, ZigBee (registered trademark), Bluetooth (registered trademark), or a wired LAN.

<Electrical equipment>
FIG. 2 is a block diagram illustrating a specific example of the configuration of the electrical device 10. With reference to FIG. 2, an electric device 10 as a general electric device functions as an input unit 12 that is a mechanism for receiving an operation input from a user, a control unit 13 that is a control device, and the electric device 10. The drive part 14 which is a mechanism for driving the mechanism which is not shown in figure for performing, the energy management part 15, and the memory | storage part 16 are included.

  When the electric device 10 is an air conditioner, a washing machine, or a television, the input unit 12 corresponds to a switch.

  The control unit 13 that is a control device includes a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like (not shown), and the CPU executes a program stored in the RAM according to an operation signal from the input unit 12. A control signal is output to the drive unit 14 to drive a mechanism (not shown). The mechanism to be driven corresponds to a blower mechanism or a heating mechanism when the electric device 10 is an air conditioner, and a rotation mechanism of a washing tub when the electric device 10 is a washing machine.

  The energy management unit 15 is connected to the drive unit 14 and detects the power consumed by the mechanism by the drive operation by the drive unit 14. The energy management unit 15 may have a hardware configuration such as a circuit connected to the drive unit 14 for performing the detection, or the function of the CPU realized by the CPU of the control unit 13 executing the program. One may be a software configuration.

  The energy management unit 15 is connected to or includes a storage device such as a RAM or a HDD (Hard Disk Drive), and stores the detected power consumption. Information for specifying the electric device 10 is also stored in the storage device. Examples of the storage medium include USB (Universal Serial Bus) memory, memory card, FD (Flexible Disk), hard disk, magnetic tape, cassette tape, MO (Magnetic Optical Disc), MD (Mini Disc), and IC (Integrated Circuit) card ( Etc.). The information specifying the electric device 10 may be information specifying “air conditioner” or “washing machine”, or may be a production number, for example. These may be stored in advance at the time of shipment, or may be input and stored after that.

  The energy management unit 15 associates information specifying the electric device 10 with the information indicating the power consumption stored in the storage device, passes the information to the PLC 11, and causes the control device 30 to transmit the information. The transmission timing may be a so-called “push type” timing defined on the electric device 10 side such as a predefined time interval or after a predefined time after the power is turned on. The timing of receiving a request from the control device 30, which is called a mold, may be used.

  In the electric device 10, information input via the PLC 11 is sent to the control unit 13. The control unit 13 can control the driving operation by the driving unit 14 based on the information.

  The storage unit 16 stores various data such as a program executed by the control unit 13 and data necessary for executing the program.

<Control device>
Returning to FIG. 1, the control device 30 is realized by, for example, a general-purpose computer, and includes a CPU 33, a RAM 34, an HDD (hard disk drive) 35, a panel 36, a communication device 37, and a PLC 31.

  The CPU 33 causes the control device 30 to perform the functions described in the present embodiment by executing a program stored in the hard disk of the HDD 35, for example.

  Further, the CPU 33 can communicate with devices in the system 100 shown in FIG. 1 via the PLC 31 and the power cable 50, and further communicate with devices constituting an external network (not shown) via the communication device 37. You can also.

The RAM 34 functions as a work space for the CPU 33.
The panel 36 is realized by combining a display device such as a liquid crystal display device and a device for detecting a touch operation from the outside such as a touch sensor, such as a touch panel. The CPU 33 can display the processing contents and the like on the panel 36. In addition, the CPU 33 executes a process according to information input to the panel 36.

<Lighting device>
FIG. 3 is a block diagram illustrating a specific example of the configuration of the lighting device 20.

  Referring to FIG. 3, lighting device 20 includes an input unit 22, a control unit 23, a drive unit 24, an energy management unit 25, and a storage unit 26. These correspond to the input unit 12, the control unit 13, the drive unit 14, the energy management unit 15, and the storage unit 16 of the electrical device 10, respectively.

  The illumination device 20 includes an LED (Light Emitting Diode) 27R that outputs red (R) light, an LED 27G that outputs green (G) light, an LED 27B that outputs blue (B) light, and a yellow color. LED 27Y which outputs the light of (Y). In the present embodiment, the light emitting means is configured by the LEDs 27R, 27G, 27B, and 27Y. In addition, the light emission means with which the illuminating device 20 is provided is not limited to LED, For example, other light sources, such as a fluorescent lamp, organic EL (Electro-Luminescence), and inorganic EL, may be sufficient.

  The drive unit 24 controls the output ratio of the LEDs 27R, 27G, 27B, and 27Y in accordance with a command from the control unit 23, and synthesizes and outputs the light emitted from these LEDs. Thereby, the color of the light which the illuminating device 20 outputs is controlled.

<Color of LED alone>
FIG. 4 is an xy chromaticity diagram for explaining the color of light output from the lighting device 20.

  In the chromaticity diagram of FIG. 4, the coordinates of the light output by the LED 27R alone are indicated by filled circles (R). In addition, the coordinates of the light output by the LED 27G as a single unit are indicated by white triangles (G). Further, the coordinates of light output by the LED 27B as a single unit are indicated by white square marks (B). In addition, the coordinates of the light output by the LED 27Y as a single unit are indicated by rhombus marks (Y). In addition, the coordinate of each LED with which the illuminating device 20 is provided is an example. The coordinates of each of the LEDs 27R, 27G, 27B, and 27Y may be slightly different from those shown in FIG. 4 as long as a light source having a similar color is used.

  Table 1 shows information about each of the LEDs 27R, 27G, 27B, and 27Y.

  In Table 1, for each of the LEDs 27R, 27G, 27B, 27Y, No. Numbers 1 to 4 are attached to indicate xy chromaticity, LED output, power consumption, illuminance, luminous efficiency, and which LED is used among LEDs 27R, 27G, 27B, and 27Y. In Table 1, the unit of illuminance is expressed in lux (Lx).

  In addition, the column of “Used LED” is “R”. Reference numeral 1 denotes information on light of the LED 27R single color. In addition, No. in which the column of the used LED is “G”. Reference numeral 2 denotes information on light of the LED 27G single color. In addition, No. in which the column of the used LED is “B”. Reference numeral 3 denotes information of light of the LED 27B single color. In addition, No. in which the column of LED used is “Y”. Reference numeral 3 denotes information on light of the LED 27Y single color.

  As understood from Table 1, among the four types of LEDs, the LED 27Y has the highest luminous efficiency. That is, it can be said that the power consumed to output light with a constant illuminance is the smallest among the four types of LEDs listed in Table 1.

<Reference light>
Next, reference light generated by combining the LEDs 27R, 27G, 27B, and 27Y in the illumination device 20 will be described.

  In FIG. 4, coordinates for three types of reference colors (“RGB (reference color)”, “BY”, “RGBY”) are shown as reference colors. Table 2 shows information on these three types of reference colors.

Table 2 shows three types of reference color information, No. 1-3.
Table 2 shows information about xy chromaticity, LED output, power consumption, illuminance, luminous efficiency, and which LED was used for each reference color. Here, the reference light is light output from the lighting device 20 indoors as illumination.

  In Table 2, the LED used is “RGB (reference color)”. Reference numeral 1 is an example of reference light that is synthesized and output from the LEDs 27R, 27G, and 27B. In the following description, this reference light is referred to as “RGB reference light”. The RGB reference light is reference light that has been conventionally used as general illumination.

  In addition, No. in which the LED used is “BY”. Reference numeral 2 is an example of the reference light output by combining the lights of the LEDs 27B and 27Y. In the following description, this reference light is referred to as “BY reference light”.

  In addition, the LED used is “RGBY”. Reference numeral 3 is an example of reference light that is output by combining the lights of the LEDs 27R, 27G, 27B, and 27Y. In the following description, this reference light is referred to as “RGBY reference light”.

  In Table 2, no. An example in which the light intensity is synthesized and dimmed so that the illuminance in each of the cases 1 to 3 is substantially constant (about 160 (Lx)) is shown.

  In FIG. The chromaticities of 1 to 3 are plotted. No. 1 light (RGB reference light) is indicated by a filled black square mark (RGB (reference color)). No. The second light (BY reference light) is indicated by a filled black triangle mark (BY) in FIG. No. The light 3 (RGBY reference light) is indicated by white circles (RGBY) in FIG.

  The coordinates of the RGBY reference light and the RGB reference light are plotted at substantially the same position in the chromaticity diagram of FIG. That is, the color of these lights is almost the same. On the other hand, according to Table 2, the power consumed to output light with an illuminance of about 160 (Lx) is 127.6 (W) for RGBY reference light and 148.62 (W for RGB reference light). ). That is, it can be said that the RGBY reference light has lower power consumption by about 20 (W) and energy efficiency. As a factor causing such a difference in power consumption, in the RGBY reference light, a yellow (Y) LED (LED 27Y) having relatively high visibility is further combined with the RGB reference light, Since the output ratio of red (R) and green (G) LEDs (LEDs 27R, 27G), which have lower visibility than yellow (Y) light, is reduced, it is conceivable that illuminance is efficiently secured. .

  Referring to FIG. 4, the BY reference light and the RGB reference light have relatively close colors. On the other hand, according to Table 2, the power consumed to output light with an illuminance of about 160 (Lx) is 101.3 (W) for BY reference light and 148.62 (W for RGB reference light). ). That is, it can be said that the BY reference light has lower power consumption by about 47 (W) and is more energy efficient. As a factor causing such a difference in power consumption, in the BY reference light, red (R) and green (G) LEDs (LEDs 27R, 27G) are not used, and yellow (Y) with relatively high visibility is used. Since the output of the LED (LED27Y) is increased, it is considered that the illuminance is efficiently secured.

  FIG. 5 shows the relationship between power consumption and illuminance for RGB reference light, RGBY reference light, and BY reference light. In FIG. 5, power consumption is shown on the right side of the vertical axis, and illuminance is shown on the left side of the vertical axis. In FIG. 5, the power consumption is indicated by a bar graph for each reference light. And in FIG. 5, the illumination intensity of each reference light is shown by the point D1-point D3, and these are connected with the line. Point D1 is the illuminance of the RGB reference light, point D2 is the illuminance of the BY reference light, and point D3 is the illuminance of the RGBY reference light.

  As shown in FIG. 5, the RGB reference light, the BY reference light, and the RGBY reference light have almost the same illuminance, but the power consumption value is the smallest for the BY reference light, and then that of the RGBY reference light. Is small, and is the largest for RGB. That is, it can be said that the BY reference light has the highest energy efficiency, the RGBY reference light is the second highest, and the RGB reference light has the lowest energy efficiency among these three reference lights.

  For these three reference lights, various data when power consumption is made constant are shown in Table 3, and the relationship between power consumption and illuminance is shown in FIG.

  In FIG. 6, the illuminance of each reference light is indicated by points D11 to D13, and these are connected by lines. Point D11 is the illuminance of the RGB reference light, point D12 is the illuminance of the BY reference light, and point D13 is the illuminance of the RGBY reference light.

  As understood from Table 3 and FIG. 6, the power consumption of the above three reference lights is adjusted to be constant at about 101 (W). In this case, the illuminance of each reference light is 95.6 (Lx) for RGB reference light, 116.8 (Lx) for RGBY reference light, and 160.7 (Lx) for BY reference light. . That is, also in this case, it can be said that the BY reference light has the highest energy efficiency, then the RGBY reference light has the highest energy, and the RGB reference light has the lowest energy efficiency among these three reference lights.

  In the present embodiment described above, the energy efficiency of the lighting device 20 can be improved by combining and outputting RGBY reference light or BY reference light instead of RGB reference light.

<Output ratio of LED in BY reference light>
In the chromaticity diagram, the coordinates of the BY reference light generated by combining the light output from the LED 27B and the LED 27Y are located on a straight line connecting the coordinates of the LED 27B that outputs blue and the coordinates of the LED 27Y that outputs yellow. Therefore, when the coordinates of the RGB reference light in the chromaticity diagram do not exist on the straight line, the BY reference light has a slight difference in color from the RGB reference light.

  FIG. 7 is a diagram for explaining a method for bringing the color of the BY reference light closer to the color of the RGB reference light.

  In FIG. 7, the coordinates on the chromaticity diagram of the LED 27 </ b> B are indicated by a point B. Further, the coordinates on the chromaticity diagram of the LED 27Y are indicated by a point Y. Also, coordinates on the chromaticity diagram of the RGB reference color are indicated by point RGB. The line L1 is a straight line connecting the point B and the point Y.

  The coordinates of the BY reference light generated by combining the LED 27B and the LED 27Y are any coordinates on the line L1. Here, in order to bring the color of the BY reference light close to the color of the RGB reference light, the BY reference light may be light represented by coordinates close to the point RGB. Therefore, the BY reference light is light represented by a point BY in FIG. Note that the point BY is an intersection of the perpendicular line extending from the point RGB to the line L1 and the line L1.

  In the present embodiment, in each coordinate (point) shown in FIG. 7, the point Y corresponds to the first coordinate, the point B corresponds to the second coordinate, and the point RGB corresponds to the third coordinate. And the point BY corresponds to the fourth coordinate.

<Switching reference light>
In system 100 of the present embodiment, HDD 35 of control device 30 stores data (at least “LED output” values of LEDs No. 1 to 3) as shown in Table 2, for example. ing. The CPU 33 transmits the value of “LED output” of each LED for outputting each reference light to the illumination device 20, so that the illumination device 20 can output the RGB reference light, the RGBY reference light, and the BY reference light. Either can be output.

  The data shown in Table 2 may be stored on the lighting device 20 side such as the storage unit 26. In this case, the control unit 23 controls the output of each LED (LEDs 27R, 27G, 27B, and 27Y) according to the program being executed or according to the control signal input from the control device 30. Specifically, the control unit 23 specifies reference light (any one of RGB reference light, RGBY reference light, and BY reference light) corresponding to the control signal, and outputs each of the specified reference lights. The output of the LED is read from the storage unit 26, and the read output of each LED is transmitted to the drive unit 24. In response to this, the drive unit 24 controls the output of each LED. As a result, RGB reference light, RGBY reference light, or BY reference light is output from the lighting device 20.

<Reference light switching control>
In the system 100, as described above, the control device 30 can acquire the power consumption of each electrical device 10. And the control apparatus 30 may switch the kind of light which the illuminating device 20 outputs based on the total amount of the power consumption of each electric equipment 10. FIG. Specifically, the RGB reference light is basically output to the lighting device 20. When the total amount of power consumption in the system 100 exceeds a certain amount, the lighting device 20 is caused to output RGBY reference light or BY reference light instead of the RGB reference light in order to reduce the total amount.

  FIG. 8 is a flowchart of processing executed by the CPU 33 of the control device 30 to switch the reference light to be output to the lighting device 20 in this way. This process is executed, for example, during a period when the power is supplied to the control device 30, or during a period when an application for switching the reference light is started in the control device 30.

  Referring to FIG. 8, in step S <b> 10, CPU 33 calculates the total amount of power consumption of lighting device 20 and electric device 10 input via PLC 31, and whether or not the total amount exceeds a predetermined amount. Determine whether. And if it is judged that it exceeded, a process will be advanced to step S20. In addition, the process of step S10 is performed for every fixed time, for example, 5 seconds.

  In step S20, CPU33 performs a lighting switch (1) process, and advances a process to step S30. In the illumination switching (1) process, the CPU 33 outputs a command for switching the output reference light from the RGB reference light to the RGBY reference light or the BY reference light to the illumination device 20. In response to this, the illuminating device 20 switches the output reference light according to the command.

  In step S30, the CPU 33 determines whether or not the total amount of power consumption of the lighting device 20 and the electric device 10 input via the PLC 31 is equal to or less than a predetermined amount. Proceed to the process. Note that the “predetermined amount” is a value equal to or less than the above “fixed amount”.

  In step S40, the CPU 33 executes the illumination switching (2) process and returns the process to step S10. In the illumination switching (2) process, the CPU 33 instructs the illumination device 20 to switch the reference light to be output from the RGBY reference light or BY reference light designated to be output in step S20 to the RGB reference light. Is output. In response to this, the illuminating device 20 switches the output reference light according to the command.

  In the processing described above, when the total amount of power consumption of the lighting device 20 and the electrical device 10 exceeds a certain amount, the reference light to be output is switched to the lighting device 20 in step S20 in order to reduce power consumption. Command is output.

  When the total amount of power consumption is equal to or less than the predetermined amount, in step S40, a command for returning the output reference light to the RGB reference light is output to the illumination device 20. Note that the processing in step S30 and step S40 may be omitted as long as it is only necessary to avoid the power consumption from exceeding the predetermined amount. That is, once a command is issued to output a reference light different from the RGB reference light, a command for returning the output reference light to the RGB reference light may not be issued as it is. Alternatively, the command for returning the output reference light to the RGB reference light may be issued on the condition that a specific operation has been performed on the control device 30 and / or the illumination device 20.

  FIG. 9 is a diagram for specifically explaining the contents of the processing described with reference to FIG. 8. In FIG. 9, the time change of the amount of power consumption of the illuminating device 20 and the some electric equipment 10 is shown. In FIG. 9, the “certain amount” in step S10 described above is indicated by WB, and the “predetermined amount” in step S30 is indicated by WA.

  Referring to FIG. 9, at time T <b> 1, a state where the television and the lighting device are consuming power is shown. In FIG. 9, the power consumption of the television is indicated by C10, and the power consumption of the lighting device is indicated by C20. In this case, the total amount of power consumed by the lighting device 20 and the electric device 10 is “C20 + C10”, which is lower than WB.

  Thereafter, at time T2, the air conditioner further starts operation. In FIG. 9, the power consumption of the air conditioner is indicated by C30. At time T2, the total amount of power consumption of the lighting device 20 and the electric device 10 is “C20 + C10 + C30”, which is a value exceeding WB. Thereby, step S20 is performed in the process of FIG. The resulting power consumption is indicated by the power consumption at time T3. At time T3, the power consumption is reduced to C21 by changing the type of reference light output by the lighting device.

  After that, when the use of the air conditioner is stopped, the total amount of power consumption decreases to “C21 + C10”. This is a value less than or equal to WA. If the process of step S40 is executed in this state, the reference light output from the lighting device is returned to the RGB reference light, and thereby the total amount of power consumption returns to “C20 + C10” as shown at time T1.

  In the processing described with reference to FIGS. 8 and 9, the power consumption (constant amount, WB) for causing the lighting device to switch from the RGB reference light to the other reference light, and the power consumption for returning to RGB. The amount is different from the amount (predetermined amount, WA). As a result, compared to the case where these values are set to the same value, the type of reference light output by the lighting device is changed each time the total amount of power consumption changes slightly in the vicinity of the WB. Can be avoided. Therefore, it is possible to avoid as much as possible the discomfort caused by the change in the type of light output from the lighting device.

  However, these values may be the same when the time interval at which step S10 and step S30 are executed is sufficiently long.

<Modification of switching control>
In the above-described processing, switching is performed between the RGB reference light and other reference light (either RGBY reference light or BY reference light). However, the RGB reference light, RGBY reference light, and BY reference light are switched. Among the three types, switching may be performed in stages. FIG. 10 is a diagram for explaining the contents of such processing.

  FIG. 10 shows four power consumptions (W1 to W4) for switching the reference light. Among these, W4 has the largest power consumption, becomes smaller in the order of W3 and W2, and W1 has the smallest power consumption.

  In this example, when the total amount of power consumption exceeds W2, the CPU 33 of the control device 30 outputs an output from the RGB reference light to the RGBY reference light (which has lower power consumption than the RGB reference light). Send a command to switch. Further, when the total amount of power consumption exceeds W4, the CPU 33 of the control device 30 switches the output from the RGBY reference light to the BY reference light (which has lower power consumption than the RGBY reference light) with respect to the illumination device 20. Send the command.

  When the total amount of power consumption is equal to or less than W3, the CPU 33 preferably sends a command for switching the output from the BY reference light to the RGBY reference light to the illumination device 20. Furthermore, when the total amount of power consumption becomes W1 or less, it is preferable that the CPU 33 sends a command for switching the output from the RGBY reference light to the RGB reference light to the illumination device 20.

<Modification of system configuration>
In the present embodiment described above, the communication in the system 100 is based on the PLC, but the communication method is not limited to this. FIG. 11 is a diagram illustrating a specific example of a modified example of the system 100 configuration.

  Referring to FIG. 11, in system 100 of the present modification, ZigBee (registered trademark), which is one of short-range wireless communication standards for home appliances, is used for electrical device 10, lighting device 20, and control device 30. Communicate over the network. In the present modification, the electric device 10, the lighting device 20, and the control device 30 each include a communication device for performing communication according to Zigbee (registered trademark). Specifically, in this modification, the electric devices 10A, 10B, 10C, the lighting device 20, and the control device 30 are respectively communication devices 111A, 111B, 111C (hereinafter collectively referred to as “communication device 111”). Also includes a communication device 121 and a communication device 131.

  Moreover, in this modification, the structure of the electric equipment 10 and the illuminating device 20 demonstrated with reference to FIG. 2 and FIG. 3 is changed as each shown by FIG. 12 and FIG.

  FIG. 12 illustrates a hardware configuration of the electric device 10 according to the present modification. The electric device 10 shown in FIG. 12 communicates with other devices via a communication device 111 that executes a communication operation according to Zigbee (registered trademark).

  FIG. 13 illustrates a hardware configuration of the lighting device 20 according to the present modification. The illuminating device 20 illustrated in FIG. 13 communicates with other devices via a communication device 121 that performs a communication operation according to Zigbee (registered trademark).

<Modification of LED>
<Modification of LED light source / reference light>
(Monochromatic light)
FIG. 14 is an xy chromaticity diagram for explaining the color of light output from the modified example of the illumination device 20. In the chromaticity diagram of FIG. 14, the coordinates of the light output by the LED 27R alone are indicated by filled circles (R). In addition, the coordinates of the light output by the LED 27G as a single unit are indicated by white triangles (G). Further, the coordinates of light output by the LED 27B as a single unit are indicated by white square marks (B). In addition, the coordinates of the light output by the LED 27Y as a single unit are indicated by rhombus marks (Y).

  Table 4 shows information on the LEDs 27R, 27G, 27B, and 27Y of this modification.

  In Table 4, for each of the LEDs 27R, 27G, 27B, 27Y, No. Numbers 1 to 4 are attached to indicate xy chromaticity, LED output, power consumption, illuminance, luminous efficiency, and which LED is used among LEDs 27R, 27G, 27B, and 27Y. In Table 4, the unit of illuminance is expressed in lux (Lx).

  Also in Table 4, as in Table 1, No. in which the column of LED used is “R”. Reference numeral 1 denotes information on light of the LED 27R single color. In addition, No. in which the column of the used LED is “G”. Reference numeral 2 denotes information on light of the LED 27G single color. In addition, No. in which the column of the used LED is “B”. Reference numeral 3 denotes information of light of the LED 27B single color. In addition, No. in which the column of LED used is “Y”. Reference numeral 3 denotes information on light of the LED 27Y single color.

  As understood from Table 4, among the four types of LEDs, the LED 27Y has the highest luminous efficiency. That is, it can be said that the power consumed to output light with a constant illuminance is the smallest among the four types of LEDs listed in Table 4.

(Reference light)
Next, reference light generated by combining the LEDs 27R, 27G, 27B, and 27Y in the modification of the illumination device 20 including the light source as shown in Table 4 will be described.

  In FIG. 14, coordinates for three types of reference colors (“RGB (reference color)”, “BY”, “RGBY”) are shown as reference colors. Table 5 shows information on these three types of reference colors.

Table 5 shows three types of reference color information, No. 1-3.
Table 5 shows information about xy chromaticity, LED output, power consumption, illuminance, luminous efficiency, and which LED was used for each reference color. Here, the reference light is light output from the lighting device 20 indoors as illumination.

  In Table 5, the LED used is “RGB (reference color)”. Reference numeral 1 is an example of reference light that is synthesized and output from the LEDs 27R, 27G, and 27B. In the following description, this reference light is referred to as “RGB reference light”. The RGB reference light is reference light that has been conventionally used as general illumination.

  In addition, No. in which the LED used is “BY”. Reference numeral 2 is an example of the reference light output by combining the lights of the LEDs 27B and 27Y. In the following description, this reference light is referred to as “BY reference light”.

  In addition, the LED used is “RGBY”. Reference numeral 3 is an example of reference light that is output by combining the lights of the LEDs 27R, 27G, 27B, and 27Y. In the following description, this reference light is referred to as “RGBY reference light”.

  In Table 5, no. An example is shown in which the light intensity is synthesized and dimmed so that the illuminance in each of the cases 1 to 3 is substantially constant (approximately 226 (Lx)).

  In FIG. The chromaticities of 1 to 3 are plotted. No. 1 light (RGB reference light) is indicated by a filled black square mark (RGB (reference color)). No. In FIG. 14, the second light (BY reference light) is indicated by a solid black triangle mark (BY). No. The light 3 (RGBY reference light) is indicated by white circles (RGBY) in FIG.

  The coordinates of the RGBY reference light and the RGB reference light are plotted at substantially the same position in the chromaticity diagram of FIG. That is, the color of these lights is almost the same.

  In this modification, the coordinates of the BY reference light and the RGB reference light are plotted at substantially the same positions in the chromaticity diagram of FIG. That is, the color of these lights is almost the same.

  In this modification, the power consumed to output light with an illuminance of about 226 (Lx) is 450 (W) for RGB reference light, 341 (W) for RGBY reference light, and BY reference light. Then, it is 280 (W). That is, it can be said that the BY reference light has the highest energy efficiency, and then the RGBY reference light has the highest energy efficiency.

  As a factor that causes a difference in power consumption, for the RGBY reference light, a yellow (Y) LED (LED 27Y) having a relatively high visual sensitivity is further combined with the RGB reference light, and yellow ( Since the output ratio of the red (R) and green (G) LEDs (LEDs 27R, 27G) having a lower visibility than the light of Y) is reduced, it is considered that the illuminance is efficiently secured. For the BY reference light, do not use the red (R) and green (G) LEDs (LEDs 27R, 27G) and increase the output of the yellow (Y) LED (LED 27Y) with relatively high visibility. Therefore, the illuminance can be efficiently secured.

  In this modification, as a combination of the LED 27B and the LEC 27Y, by combining only the LED 27B and the LEC 27Y, light having substantially the same color as the RGB reference light can be output. This is because when the line connecting the coordinates of the LED 27B single color and the coordinates of the LEC 27Y single color is taken into consideration in the chromaticity diagram of FIG. 14, the coordinates of the RGB reference light exist almost on the line. That is, the illumination device 20 of the present modification can output light having almost the same color as the RGB reference light with high energy efficiency by combining only the LED 27B and the LEC 27Y.

  FIG. 15 shows the relationship between power consumption and illuminance for RGB reference light, RGBY reference light, and BY reference light. In FIG. 15, power consumption is shown on the right side of the vertical axis, and illuminance is shown on the left side of the vertical axis. In FIG. 15, the power consumption is indicated by a bar graph for each reference light. And in FIG. 15, the illumination intensity of each reference light is shown by the point D1-point D3, and these are connected with the line. Point D21 is the illuminance of the RGB reference light, point D22 is the illuminance of the BY reference light, and point D23 is the illuminance of the RGBY reference light.

  As shown in FIG. 15, even in this modified example, the RGB reference light, the BY reference light, and the RGBY reference light have almost the same illuminance, but the power consumption value is the smallest for the BY reference light, and the next RGBY reference light is small, and RGBY is the largest. That is, it can be said that the BY reference light has the highest energy efficiency, the RGBY reference light is the second highest, and the RGB reference light has the lowest energy efficiency among these three reference lights.

<Other variations, etc.>
In the present embodiment described above, an illumination system is configured by the illumination device 20 and the control device 30 that executes control for switching the type of reference light output from the illumination device 20. Note that the switching of the reference light type may be based on the total amount of power consumption in the system 100 or may be based on an operation on the control device 30 (panel 36).

  Moreover, the illuminating device 20 and the control apparatus 30 are unitized, and this can be collectively considered as an illuminating device. That is, the lighting device 20 has a function of measuring the power consumption of other devices in the lighting device 20 and the system 100, and has a function of controlling the lighting operation based on the measured power consumption. It may be done.

  In the present embodiment, the types of electric devices 10 constituting system 100 are not limited to those shown in FIG. The system 100 may be connected to other electrical devices (component stereo, personal computer, etc.) in place of or in addition to those shown in FIG. 1 or in addition to those shown in FIG. good.

  In addition, the control device 30 may not be able to measure the power consumption of all electrical devices connected to the system 100. In such a case, the control device 30 determines whether or not the total amount of the electric equipment that can measure power consumption has reached the above-described fixed amount and the like, and executes the control operation.

  Note that the illumination device 20 can switch the type of reference light to be output not only by a command from the control device 30 but also by an operation on the input unit 22 of the illumination device 20.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. In addition, the inventions described in the embodiments and modifications thereof are intended to be implemented alone or in combination as much as possible.

  DESCRIPTION OF SYMBOLS 10 Electric equipment, 12, 22 Input part, 13, 23 Control part, 14, 24 Drive part, 15, 25 Energy management part, 16, 26 Storage part, 20 Illumination device, 30 Control apparatus, 34 RAM, 36 Panel, 37 Communication device, 50 power cable, 100 system.

Claims (10)

A plurality of light emitting means having different emission colors;
Combining means for controlling and combining light output ratios of the plurality of light emitting means;
Comprising control means for controlling switching of a plurality of modes;
The plurality of light emitting means includes a first light emitting means for outputting yellow light, a second light emitting means for outputting blue light, a third light emitting means for outputting red light, and a first light emitting means for outputting green light. Including four light emitting means ,
The combining means includes a mode for combining and outputting the light output from the first light emitting means and the second light emitting means, and the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means. And a mode for combining and outputting the light output from the first light emitting means, the second light emitting means, the third light emitting means, and the fourth light emitting means,
The said control means is an illuminating device switched and controlled between each said mode . In the chromaticity diagram, the coordinates of the light output from the first light emitting means are the first coordinates, the coordinates of the light output from the second light emitting means are the second coordinates, and the second light emitting means and the third light emitting means are the same. The coordinates of the RGB reference light in the mode of combining and outputting the light output from the light emitting means and the fourth light emitting means are set as the third coordinates,
The synthesizing unit synthesizes the light of the fourth coordinate in a mode in which the light output from the first light emitting unit and the second light emitting unit is combined and output,
The lighting device according to claim 1, wherein the fourth coordinate is a coordinate closest to the third coordinate on a line connecting the first coordinate and the second coordinate in the chromaticity diagram . The lighting device according to claim 1, wherein the control unit switches a mode of the combining unit based on a control signal transmitted from a control device communicably connected to the lighting device. The lighting device according to claim 3, wherein the control unit switches a mode of the combining unit based on a total amount of energy consumption in the home . The synthesizing unit is configured to combine the light output from the first light emitting unit, the second light emitting unit, the third light emitting unit, and the fourth light emitting unit and output the combined light. The output of the third light-emitting means and the fourth light-emitting means is reduced with respect to the reference light in the mode in which the light output from the light-emitting means and the fourth light-emitting means is combined and output, and the output of the first light-emitting means The light closest to the coordinates of the RGB reference light in the mode of combining and outputting the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means is combined. The lighting device described. A plurality of light emitting means having different emission colors ;
Combining means for controlling and combining light output ratios of the plurality of light emitting means ;
A lighting device including control means for controlling switching of a plurality of modes;
A lighting system including a control device communicatively connected to the lighting device,
The plurality of light emitting means includes a first light emitting means for outputting yellow light, and a second light emitting means for outputting blue light.
A light emitting means, a third light emitting means for outputting red light, and a fourth light emitting means for outputting green light ,
The combining means includes a mode for combining and outputting the light output from the first light emitting means and the second light emitting means, and the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means. And a mode for combining and outputting the light output from the first light emitting means, the second light emitting means, the third light emitting means, and the fourth light emitting means,
The said control means is an illumination system switched and controlled between each said mode . In the chromaticity diagram, the coordinates of the light output from the first light emitting means are the first coordinates, the coordinates of the light output from the second light emitting means are the second coordinates, and the second light emitting means and the third light emitting means are the same. The coordinates of the RGB reference light in the mode of combining and outputting the light output from the light emitting means and the fourth light emitting means are set as the third coordinates,
The synthesizing unit synthesizes the light of the fourth coordinate in a mode in which the light output from the first light emitting unit and the second light emitting unit is combined and output,
The illumination system according to claim 6, wherein the fourth coordinate is a coordinate closest to the third coordinate on a line connecting the first coordinate and the second coordinate in the chromaticity diagram . The lighting system according to claim 6 or 7 , wherein the control unit switches a mode of the combining unit based on a control signal transmitted from the control device . The lighting system according to claim 8, wherein the control unit switches a mode of the combining unit based on a total amount of energy consumption in a home . The combining means is configured to combine and output the light output from the first light emitting means, the second light emitting means, the third light emitting means, and the fourth light emitting means, and output the third light emitting means and the fourth light emitting means. RGB reference in a mode in which the output of the first light emitting means is decreased, the output of the first light emitting means is increased, and the light output from the second light emitting means, the third light emitting means, and the fourth light emitting means is combined and output. The illumination system of claim 9, wherein the illumination system synthesizes light that is closest to the coordinates of the light .

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