JP2008027784A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system capable of electrifying a plurality of emission panels for lighting and performing lighting control simultaneously to eliminate a troublesome wiring work and cut down the cost. <P>SOLUTION: DC power is fed to a plurality of emission panels 3 for lighting from a single AC/DC converter 2 via a feeder cable 5 for one line. At this time, lighting control information for the emission panels 3 supplied from an operating portion 4, is superimposed on the DC current. In this way, the emission panels 3 receive the DC power and extract control information superimposed on the DC power so that lighting control can take place based on this extracted control information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an illumination system that performs illumination using a light-emitting panel that utilizes an electroluminescence (EL) emission phenomenon.

  In general, a light-emitting panel using an electroluminescence (EL) light-emitting phenomenon hardly generates heat, and is lightweight and thin. In particular, an organic EL light-emitting panel has a color selection compared to an inorganic EL light-emitting panel. It has various advantages such as easy, low driving voltage and power saving.

  By the way, for example, when lighting is performed by providing a plurality of light emitting panels in a room, it is necessary to supply DC power to each light emitting panel in order to light each light emitting panel. In addition, when a plurality of light emitting panels are installed in the room as described above, it is necessary to individually control the lighting state of each light emitting panel so that the room is in a desired lighting state.

Therefore, in the prior art, as shown in FIG. 5, a single AC / DC converter a that performs conversion from alternating current to direct current is provided, and each light emitting panel b is connected from the AC / DC converter a through a feeder line c. While supplying DC power, the operation part d is provided in the room or the like, and a control wiring e is laid separately from the power supply line c, and a lighting control signal input from the operation part d is supplied to the control wiring. A technique has been proposed in which lighting control of each light emitting panel b is performed by transmitting to each light emitting panel b via e (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-22071

  Since the conventional illumination system described in Patent Document 1 performs conversion from alternating current to direct current with a single AC / DC converter a, the power conversion efficiency when viewed as a whole system is high. Although there is an advantage that it is improved, it is also necessary to lay the control wiring e separately from the power supply line c, which requires extra labor and labor for wiring construction and increases the cost of the entire system. There is a problem that.

  The present invention has been made to solve the above-described problems, and enables not only power supply to each light-emitting panel but also lighting control at the same time without separately providing wiring for controlling the light-emitting panel. Therefore, it is an object of the present invention to provide an illumination system that saves the labor of wiring construction and reduces costs.

  In order to achieve the above object, a lighting system of the present invention includes a single DC power source that generates DC power, a plurality of lighting light-emitting panels that are fed from the DC power source, and lighting of these light-emitting panels. An operation unit that inputs control information for control, and the DC power supply includes control information superimposing means that superimposes control information input from the operation unit on a DC current and supplies the control information to the light-emitting panel. Each light emitting panel is superimposed on the DC power, a power receiving unit that receives power from the DC power source, an EL light emitting unit that emits light by the DC power received by the power receiving unit, a storage unit that stores its own address, and If the determination unit determines whether the address included in the control information matches the own address stored in the storage means, and if the determination unit determines that both addresses match, this It is characterized by and a lighting control unit that controls lighting of the EL light emitting unit based on the control information in accordance with.

  According to the present invention, the feeder line can also be used as the control line. For this reason, it is possible to simultaneously perform power feeding and lighting control for each light-emitting panel with a single wiring without providing a separate control wiring. For this reason, it is possible to provide an illumination system that saves the labor of wiring construction and reduces costs.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an entire lighting system according to an embodiment of the present invention, FIG. 2 is a block diagram showing a configuration of an AC / DC converter in the system, and FIG. 3 is a block diagram showing a configuration of each light emitting panel in the system. It is.

  A lighting system 1 according to this embodiment includes a single AC / DC converter 2 as a DC power source that generates DC power, a plurality of lighting light emitting panels 3 fed from the AC / DC converter 2, and these And an operation unit 4 for inputting control information for lighting control for the light emitting panel 3. The AC / DC converter 2 and each light-emitting panel 3 are connected to each other via a feeder line 5 for one line.

  The operation unit 4 receives a signal for controlling the lighting of the light-emitting panel 3 given from the remote controller 6, that is, a signal for controlling the light-emitting panel 3 to be controlled, blinking or dimming of the panel. The lever signal is output to the AC / DC converter 2 as control information. The control signal given from the remote controller 6 to the operation unit 4 may be either a radio signal or an optical signal such as infrared rays.

  As shown in FIG. 2, the AC / DC converter 2 includes a rectifying / smoothing unit 21 that converts AC power supplied from a commercial AC power source into DC power having a predetermined voltage value, and power supply from the rectifying / smoothing unit 21. In response to this, the pulse generation unit 22 that generates control information input from the operation unit 4 as a signal having a predetermined pulse waveform suitable for signal transmission, and the pulse signal generated by the pulse generation unit 22 are rectified and smoothed. 21 includes an adder 23 serving as control information superimposing means that is superposed on the direct current generated in 21 and supplied to the light emitting panel 3.

  On the other hand, each light emitting panel 3 is installed on the ceiling or wall surface of the room for illumination. As shown in FIG. 3, the power receiving unit 31 that receives DC power from the AC / DC converter 2, and the power receiving unit 31. EL light emitting unit 32 that emits light by direct current power received by the device, an address memory 33 as a storage means for storing its own address, and a control for lighting control of each light emitting panel 3 by receiving a pulse signal superimposed on the direct current power A control information extraction unit 34 that extracts information, and a determination unit 35 that determines whether or not the address included in the control information extracted by the control information extraction unit 34 matches the own address stored in the address memory 33. When the determination unit 35 determines that both addresses match, the lighting control unit 3 that controls the lighting of the EL light emitting unit 32 based on the control information accordingly. It is equipped with a.

  The EL light emitting unit 32 is a so-called organic light emitting panel in which a light emitting element in which a transparent electrode, an organic light emitting layer, and a metal electrode are sequentially laminated on a transparent substrate is sealed with a sealing member. However, it is also possible to apply an inorganic light emitting panel.

  Next, operation | movement of the illumination system 1 which has the said structure is demonstrated. When a signal for controlling the lighting of the light emitting panel 3 is given from the remote controller 6 to the operation unit 4, the operation unit 4 outputs the signal for controlling the lighting to the AC / DC converter 2 as control information.

  The rectifying / smoothing unit 21 of the AC / DC converter 2 converts AC power supplied from a commercial AC power source into DC power, while the pulse generating unit 22 performs this control when control information is input from the operation unit 4. A signal having a predetermined pulse waveform adapted to signal transmission is generated based on the information. Then, as shown in FIG. 4, in the adder 23 at the next stage, the pulse signal generated by the pulse generator 22 is superimposed on the direct current generated by the rectifying and smoothing unit 21.

  In this case, the pulse signal superimposed on the direct current shows the case of the pulse density modulation method in which the pulse density transmitted within the unit time T is changed according to each light emitting panel in the timing chart shown in FIG. Not limited to this, various pulse modulation methods such as a pulse width modulation method, a pulse amplitude modulation method, and a pulse position modulation method can be adopted.

  The power receiving unit 31 of each light-emitting panel 3 receives DC power supplied from the AC / DC converter 2 via the feeder line 5. Further, the control information extraction unit 34 controls the lighting control of the light-emitting panel 3 from the pulse signal superimposed on the DC power, that is, specifies the light-emitting panel 3 to be controlled, blinking or dimming the panel, etc. A control signal is extracted.

  The determination unit 35 determines whether or not the address included in the control information extracted by the control information extraction matches the own address stored in the address memory 33. The coincidence signal is output to the lighting control unit 36 at the next stage.

  Only when the coincidence signal is given from the determination unit 35, the lighting control unit 36 controls the lighting of the EL light emitting unit 32 based on the control information extracted by the control information extracting unit 34. As a result, control is performed such that the EL light emitting unit 32 is turned on by the DC power received by the power receiving unit 31, is turned off by turning off the power supply, or is dimmed.

  As described above, in this embodiment, the feeder line 5 can be used as a control line at the same time. For this reason, the power supply and the lighting control for each light emitting panel 3 can be performed simultaneously by the single wiring 5 without providing a separate control wiring. As a result, it is possible to save wiring work and to reduce the cost of the entire system.

  In this embodiment, a signal for controlling the lighting of the light-emitting panel 3 is given from the remote controller 6. However, a signal for controlling the lighting is generated by directly operating a button provided on the operation unit 4, It goes without saying that this lighting control signal may be supplied to the AC / DC converter 2.

It is a lineblock diagram showing the whole lighting system in an embodiment of the invention. It is a block diagram which shows the structure of the AC / DC converter in the same system. It is a block diagram which shows the structure of each light emission panel in the system. It is a time chart with which it uses for description in the case where control information is superimposed on direct-current power, and it transmits to a light emission panel in the same system. It is a block diagram which shows an example of the conventional illumination system.

Explanation of symbols

1 Lighting system 2 AC / DC converter (DC power supply)
3 Light-emitting panel 4 Operation unit 5 Feed line 23 Adder (control information superimposing means)
31 Power receiving unit 32 EL light emitting unit 33 Address memory (storage means)
35 determination unit 36 lighting control unit

Claims (1)

  A single direct-current power source for generating direct-current power, a plurality of lighting light-emitting panels fed from the direct-current power source, and an operation unit for inputting control information for lighting control of these light-emitting panels, The power source has control information superimposing means for superimposing control information input from the operation unit on a direct current and supplying the light emitting panel to the light emitting panel, and each light emitting panel receives power from the DC power source And an EL light emitting unit that emits light by DC power received by the power receiving unit, a storage unit that stores its own address, and an address included in control information superimposed on the DC power is stored in the storage unit. A determination unit that determines whether or not the address matches its own address, and if the determination unit determines that both addresses match, the EL light emitting unit is turned on based on the control information accordingly Lighting system characterized in that it comprises a Gosuru lighting control unit.

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