JP2015191719A - Lighting device, light-receiving device and lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an exterior device to obtain management information of a lighting device without providing a terminal for outputting the management information.SOLUTION: A control unit 120 controls a light-emitting unit 110. A storage unit 122 stores information on the light-emitting unit 110 (hereinafter referred to as "management information"). The control unit 120 has a first mode and a second mode. In the first mode, the control unit 120 causes the light-emitting unit 110 to function as a lighting source of illumination. In the second mode, the control unit 120 outputs the management information by changing light-emitting conditions of the light-emitting unit 110 in accordance with the management information.

Description

  The present invention relates to an illumination device, a light receiving device, and an illumination system.

  In recent years, self-luminous elements such as organic EL elements and LEDs have been increasingly used as light sources for lighting devices. In such a lighting device, it is necessary to manage an operation history of a light emitting unit (for example, a light emitting panel) having a light emitting element. For example, Patent Document 1 describes that an organic EL panel is provided with a terminal for outputting characteristic information. Patent Document 2 describes that an organic EL device is provided with a bar code indicating operation information (for example, maximum drive current) of the organic EL device.

JP 2007-173088 A Special table 2012-502259 gazette

  As described above, in the lighting device, it is necessary to manage an operation history and the like of a light emitting unit having a light emitting element. On the other hand, even if a terminal for outputting management information such as operation history is provided in the lighting device as in Patent Document 1, if the lighting device is installed in a place such as a ceiling that is difficult for humans to reach, the management information Since it is not easy to connect the wiring to the terminal of the lighting device when acquiring the management information, it is not easy to acquire the management information.

  An example of a problem to be solved by the present invention is that an external device can acquire management information of a lighting device without providing a terminal for outputting the management information.

The invention according to claim 1 is a light emitting unit;
A control unit for controlling the light emitting unit;
A storage unit that stores management information that is information about the light emitting unit;
With
The controller is
A first mode in which the light emitting unit functions as a light source for illumination;
A second mode for outputting the management information by changing a light emission condition of the light emitting unit according to the management information;
It is an illuminating device which has.

The light receiving device according to claim 9 is a light receiving device that converts light emitted from the lighting device into management information of the lighting device, and
The lighting device outputs the management information by changing a light emission condition of the light emitting unit according to the management information,
A light receiving unit that receives light from the lighting device and converts the light into an electrical signal;
A management information generating unit that generates the management information using the electrical signal;
A light receiving device.

The illumination system according to claim 10 includes an illumination device and a light receiving device,
The lighting device includes:
A light emitting unit;
A control unit for controlling the light emitting unit;
A storage unit that stores management information that is information about the light emitting unit;
With
The controller is
A first mode in which the light emitting unit functions as a light source for illumination;
A second mode for outputting the management information by changing a light emission condition of the light emitting unit according to the management information;
Have
The light receiving device is:
A light receiving unit that receives light from the lighting device and converts the light into an electrical signal;
A management information generating unit that generates the management information using the electrical signal;
It is an illumination system provided with.

It is a figure for demonstrating the structure of the illumination system which concerns on embodiment. It is a figure for demonstrating the 1st example of the 2nd mode of a control part. It is a figure for demonstrating the 2nd example of the 2nd mode of a control part. It is a figure for demonstrating the 3rd example of the 2nd mode of a control part. It is a figure for demonstrating the 4th example of the 2nd mode of a control part. It is a figure for demonstrating the 5th example of the 2nd mode of a control part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

  In the following description, each component of the illumination system 10 is not a hardware unit configuration but a functional unit block. For example, the control unit 120, the storage unit 122, the input unit 130, the management information generation unit 220, and the storage unit 222 of the lighting system 10 are configured such that each component is a CPU of a computer, a memory, a program loaded in the memory, It is realized by an arbitrary combination of hardware and software, mainly a storage medium such as a hard disk for storing a program, and a network connection interface. There are various modifications of the implementation method and apparatus.

  Drawing 1 is a figure for explaining the composition of lighting system 10 concerning an embodiment. The illumination system 10 includes an illumination device 100 and a light receiving device 200.

  The lighting device 100 includes a light emitting unit 110, a control unit 120, and a storage unit 122. The control unit 120 controls the light emitting unit 110. The storage unit 122 stores information on the light emitting unit 110 (hereinafter referred to as management information). The control unit 120 has a first mode and a second mode. In the first mode, the control unit 120 causes the light emitting unit 110 to function as a light source for illumination. In the second mode, the control unit 120 outputs the management information by changing the light emission condition of the light emitting unit 110 according to the management information.

  The light receiving device 200 includes a light receiving unit 210 and a management information generating unit 220. The light receiving unit 210 receives light from the illumination device 100 and converts it into an electrical signal. The management information generation unit 220 generates the management information using the electrical signal generated by the light receiving unit 210. Details will be described below.

  The lighting device 100 is, for example, a panel type lighting device, and is disposed on, for example, a wall or a ceiling. The light emitting unit 110 of the lighting device 100 includes a self light emitting element such as an organic EL element as a light emitting element. The light emitting unit 110 may have only one light emitting element or a plurality of light emitting elements. In the latter case, the control unit 120 may be configured to individually control a plurality of light emitting elements. Further, in this case, the plurality of light emitting elements may emit different colors (for example, red, green, and blue). In this way, the control unit 120 can control the emission color (color temperature and chromaticity) of the light emitting unit 110.

  In addition, the light emitting unit 110 may be formed by one light emitting panel or may be formed by a plurality of light emitting panels.

  The storage unit 122 stores management information of the light emitting unit 110. The management information includes at least one of item information, product related information, characteristic information, and drive history information. The item information includes product number information, product name information, and configuration information. The product related information includes at least one of design intention, cost information, selling price, material, and processing method. The characteristic information includes at least one of the driving voltage, driving current, luminance, chromaticity, and color temperature of the light emitting unit 110. The operation history information includes the operation time of the light emitting unit 110. The operation history information includes a change over time in the characteristic information of the light emitting unit 110 (for example, a value after a predetermined time has elapsed).

  When the light emitting unit 110 emits light as illumination (first mode), the control unit 120 causes the light emitting unit 110 to emit light under a predetermined condition (or a condition input by the user). At this time, the control unit 120 does not change the light emission condition of the light emitting unit 110 except when a new light emission condition is input from the user. On the other hand, when outputting the management information from the light emitting unit 110 (second mode), the control unit 120 reads the management information from the storage unit 122 and outputs a digital signal indicating the read management information. 110 light emission conditions are changed with time.

  The lighting device 100 has an input unit 130. The input unit 130 includes an input device such as a rotary switch, a push switch, or a touch panel, and is used when a user inputs information to the lighting device 100. The information input here includes light emission conditions (for example, luminance and light emission color) when the light emitting unit 110 emits light as illumination. The information input from the input unit 130 may include information for switching the control mode of the control unit 120 from the first mode to the second mode (mode switching information). When receiving the mode switching information, the control unit 120 operates the light emitting unit 110 in the second mode.

  Note that a timer may be used as a trigger when the operation mode of the control unit 120 returns from the second mode to the first mode, or mode switching information input again from the input unit 130 may be used. . In the former case, the control unit 120 returns from the second mode to the first mode after a predetermined time has elapsed. In the latter case, the control unit 120 operates in the second mode until the mode switching information is input again.

  As the input unit 130, an optical sensor can be used. In this case, the input unit 130 receives an optical signal indicating that the control mode of the control unit 120 is switched from the first mode to the second mode from the outside, and converts the optical signal into mode switching information that is an electrical signal. 120. The above-described optical signal is transmitted from, for example, a light receiving device 200 described later. However, a signal transmission device different from the light receiving device 200 may transmit the above-described optical signal.

  Here, when the light emitting unit 110 is formed by a plurality of light emitting elements, the control unit 120 may display the code on the light emitting unit 110 after encoding the management information. For example, when the control unit 120 has a plurality of linear light emitting elements, the control unit 120 may convert the management information into a barcode. When the light emitting unit 110 has a configuration in which light emitting elements are two-dimensionally arranged, the control unit 120 may convert the management information into a two-dimensional code. Here, information for coding the management information is stored in the storage unit 122.

  The light receiving device 200 is, for example, a portable device, and includes a light receiving unit 210, a management information generating unit 220, and a storage unit 222. The light receiving unit 210 includes a photoelectric conversion element, and converts the light emitted from the light emitting unit 110 into an electrical signal. The management information generation unit 220 generates management information using the electrical signal generated by the light receiving unit 210. The storage unit 222 stores the management information generated by the management information generation unit 220.

  When the control unit 120 has coded the management information, the management information generation unit 220 decodes the code information into the management information. Here, information used for decoding is stored in the storage unit 222.

  In addition, the light receiving device 200 may include a display unit that displays management information generated by the management information generation unit 220.

  FIG. 2 is a diagram for explaining a first example of the second mode of the control unit 120. In the example shown in this figure, the control unit 120 outputs a digital signal indicating management information by changing the luminance of the light emitting unit 110. Specifically, the control unit 120 causes the light emitting unit 110 to emit light at the first luminance when outputting “1”, and causes the light emitting unit 110 to emit light at the second luminance when outputting “0”.

  The difference ΔI between the first luminance and the second luminance is 1% to 50%, preferably 5% to 30%, when the maximum luminance in the second mode is 100%. This lower limit value is determined with the intention of suppressing misjudgment in the management information generation unit 220 and the light receiving unit 210. Specifically, by setting the lower limit value, it is possible to prevent the luminance that cannot be generated by the management information generation unit 220 from being generated, or the luminance that cannot be detected by the light receiving unit 210. The upper limit value is determined with the intention of making it difficult for the user of the lighting device 100 to recognize a change in luminance. Note that the control unit 120 may have a third mode in which the difference ΔI between the first luminance and the second luminance is large. In this case, the control unit 120 operates in the third mode when there is an input to the input unit 130. This third mode is used, for example, when only the administrator of the lighting device 100 is in the illumination range of the lighting device 100.

  In the example of the second mode shown in this figure, the case where the luminance is relatively high is “1”, but the case where the luminance is relatively low may be “1”. Further, since the reaction speed of the organic EL element is relatively fast, for example, the time for outputting 1-bit information is uniquely determined by the light receiving ability on the light receiving device 200 side. Therefore, an optimal value is appropriately set for the time for outputting 1-bit information according to the assumed light receiving device 200.

  FIG. 3 is a diagram for explaining a second example of the second mode of the control unit 120. Also in the example shown in this figure, the control unit 120 outputs a digital signal indicating management information by changing the luminance of the light emitting unit 110. However, in this embodiment, each luminance indicates more information (for example, 1 byte). The difference between adjacent luminances is, for example, 1% or more and 50% or less, preferably 5% or more and 30% or less, assuming that the large luminance is 100%.

FIG. 4 is a diagram for explaining a third example of the second mode of the control unit 120. In the example shown in the figure, the control unit 120 outputs a digital signal indicating management information by changing the emission color (for example, chromaticity or color temperature) of the light emitting unit 110. Specifically, the control unit 120 causes the light emitting unit 110 to emit light at the first chromaticity (or color temperature) when outputting “1”, and causes the light emitting unit 110 to emit the second color when outputting “0”. The light is emitted at a degree (or color temperature). The difference ΔC between the first chromaticity (or color temperature) and the second chromaticity (or color temperature) is determined within a range in which it is difficult for a person to recognize a change. For example, the control unit 120 sets the chromaticity (or color temperature) of the light emitting unit 110 so that both Δu and Δv are ± 0. 0 from the reference coordinate in the uv coordinate system (specifically, CIE 1960 UCS chromaticity coordinate). It is changed within a range of 1 or less or within a range satisfying √ (Δu ² + Δv ² ) <0.1. This range (0.1) is preferably 0.05, and more preferably 0.02.

  In the example shown in FIG. 4, as in FIG. 3, the number of stages of chromaticity (or color temperature) is increased, and one chromaticity (or color temperature) contains more information (for example, 1 byte). You may make it show.

  FIG. 5 is a diagram for explaining a fourth example of the second mode of the control unit 120. In the example shown in the figure, the control unit 120 causes the light emitting unit 110 to display a barcode indicating management information.

  FIG. 6 is a diagram for explaining a fifth example of the second mode of the control unit 120. In the example shown in the figure, the control unit 120 causes the light emitting unit 110 to display a two-dimensional code indicating management information.

  As described above, according to the present embodiment, the management information is output as the light emission pattern from the light emitting unit 110. Therefore, it is not necessary to provide a terminal for outputting management information to the lighting device 100.

  And when it is not necessary to provide the terminal for outputting management information to the illuminating device 100, the area of the non-light-emitting part of the illuminating device 100 can be made small. Thereby, the light emission area of the illuminating device 100 can be expanded.

  Further, when it is necessary to acquire management information of the lighting device 100 from the terminal, it is necessary to attach / remove wiring to the terminal each time management information is acquired. For this reason, it is difficult to periodically acquire and manage management information. On the other hand, in this embodiment, since it is not necessary to attach / remove the wiring to / from the terminal, the management information can be easily acquired periodically.

  Further, when a plurality of lighting devices 100 are arranged, it takes a lot of labor to attach / remove the wiring to / from each terminal of the plurality of lighting devices 100. On the other hand, in this embodiment, since it is not necessary to attach / remove wiring to / from the terminals, management information can be easily acquired from each of the plurality of lighting devices 100.

  In addition, when outputting the management information, the control unit 120 changes the light emission condition of the light emitting unit 110 within a range that is difficult for humans to recognize. For this reason, even when the lighting device 100 is operating as the lighting device, the manager or the user of the lighting device 100 can obtain the management information.

  As mentioned above, although embodiment and the Example were described with reference to drawings, these are illustrations of this invention and can also employ | adopt various structures other than the above.

DESCRIPTION OF SYMBOLS 10 Illumination system 100 Illuminating device 110 Light emission part 120 Control part 122 Storage part 130 Input part 200 Light receiving apparatus 210 Light receiving part 220 Management information generation part 222 Storage part

Claims (10)

A light emitting unit;
A control unit for controlling the light emitting unit;
A storage unit that stores management information that is information about the light emitting unit;
With
The controller is
A first mode in which the light emitting unit functions as a light source for illumination;
A second mode for outputting the management information by changing a light emission condition of the light emitting unit according to the management information;
A lighting device. The lighting device according to claim 1.
The said control part is an illuminating device which changes the brightness | luminance of the said light emission part in the said 2nd mode. The lighting device according to claim 2,
The said control part is an illuminating device which changes the brightness | luminance of the said light emission part in the range in which a person cannot recognize a change in the said 2nd mode. The lighting device according to claim 1.
The said control part is an illuminating device which changes the luminescent color of the said light emission part in the said 2nd mode. The lighting device according to claim 4.
The said control part is an illuminating device which changes the luminescent color of the said light emission part in the range in which a person cannot recognize a change easily in the said 2nd mode. The lighting device according to claim 5.
The controller controls the emission color of the light emitting unit in the second mode, and in the chromaticity space of the uv coordinate system, both Δu and Δv are within ± 0.1 or less from the reference coordinates, or √ ( Δu ² + Δv ²⁾ <illumination device vary in a range satisfying 0.1. The lighting device according to claim 4.
The said control part is an illuminating device which changes the color temperature of the said light emission part in the said 2nd mode. The lighting device according to claim 1.
The said control part is an illuminating device which operate | moves in a said 2nd mode, when the mode switching information which shows operating the said control part in a said 2nd mode is received. A light receiving device that converts light emitted by the lighting device into management information of the lighting device,
The lighting device outputs the management information by changing a light emission condition of the light emitting unit according to the management information,
A light receiving unit that receives light from the lighting device and converts the light into an electrical signal;
A management information generating unit that generates the management information using the electrical signal;
A light receiving device. An illumination device and a light receiving device;
The lighting device includes:
A light emitting unit;
A control unit for controlling the light emitting unit;
A storage unit that stores management information that is information about the light emitting unit;
With
The controller is
A first mode in which the light emitting unit functions as a light source for illumination;
A second mode for outputting the management information by changing a light emission condition of the light emitting unit according to the management information;
Have
The light receiving device is:
A light receiving unit that receives light from the lighting device and converts the light into an electrical signal;
A management information generating unit that generates the management information using the electrical signal;
A lighting system comprising:

Images