KR20130017298A - Power supply control device of led lighting and lighting system - Google Patents

Abstract

In a lighting system using a plurality of LED lamps and controlled by a wireless switch, it is possible to perform dimming control of the plurality of LED lamps only by providing a relatively simple circuit.
The power control device 12 capable of controlling the illuminance of the luminaire by outputting a current for driving the luminaire 11 and controlling the current, a plurality of luminaires which are driven and turned on by the power control device, and operating force of the switch button In a lighting system having a switch device (14) incorporating an energy self-contained device for converting into electrical energy, the power supply control device (12) is capable of receiving a radio signal of a predetermined frequency and the number of receptions of radio signals. A first circuit section having control signal generating circuits 25 and 26 for generating a control signal according to the first power system, and outputting a current according to the control signal at the first circuit section and operating in the second power system; The second circuit section 21, 22 is configured to operate the second power supply when no current is output.

Description

Power supply and lighting system of LED lighting {POWER SUPPLY CONTROL DEVICE OF LED LIGHTING AND LIGHTING SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power control device for lighting equipment and a power control device for controlling the lighting / lighting and dimming of LED lighting, and more particularly, to a power control device for LED lighting using a wireless switch that requires no battery and a lighting system using the same. .

In recent years, in order to reduce the emission of carbon dioxide, LED lights having low power consumption have been widely used in place of incandescent lamps having high power consumption. Moreover, the technique which controls light control in LED lighting apparatus is proposed (patent document 1).

Japanese Patent Publication No. 2009-301876 Japanese Patent Publication No. 2003-534704

(Summary of the Invention)

(Problems to be Solved by the Invention)

In the case of placing LED lighting on the ceiling of a relatively large building, a plurality of LED lighting devices (hereinafter referred to as LED lamps) may be attached at predetermined intervals. And when constructing the illumination system which controls the dimming of these LED lamps, in the conventional technique, as shown in FIG. 9, power switch SW1, SW2 ...... for every LED lamp L1, L2 ....... ) And dimming dials (D1, D2...), And wirings for connecting these switches, the dials, and the LED lamps.

Therefore, as the number of LED lamps to be placed larger and larger increases, the number and length of the wirings increase. Therefore, the laying of wirings and the construction of wirings become complicated, and the construction time becomes long and there is a possibility of incorrect connection. There is a problem that it becomes high.

Therefore, the present inventors have studied a lighting system of a method of controlling dimming of a plurality of LED lamps by using a wireless switch, i.e., a wireless transmitter incorporating an energy self-contained device, which requires no battery. In addition, Patent Literature 2 describes a dimming control technique for a lamp using an energy self-contained radio transmitter.

However, when controlling the brightness of the lamp several steps, as described in Patent Literature 1, an instruction is given by a high-frequency telegram, that is, a command code. There is a problem that an apparatus is required, and the circuit for controlling dimming becomes complicated and expensive.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a plurality of LED lamps in a lighting system using a plurality of LED lamps and controlled by a wireless switch. The present invention provides a power supply control device and an illumination system for LED lighting that can perform dimming control.

In order to achieve the above object, the present invention is a power supply control device capable of controlling the illuminance of the luminaire by outputting a current for driving the luminaire and controlling the current,

A first circuit portion having a receiver capable of receiving a radio signal of a predetermined frequency, a control signal generation circuit for generating a control signal according to the number of times of reception of the radio signal by the receiver;

And a second circuit part which generates and outputs a current according to the control signal from the first circuit part,

The first circuit portion and the second circuit portion are each provided with an AC-DC conversion circuit for converting an AC voltage into a DC voltage,

When the AC-DC converter circuit of the first circuit part is always in an operating state, and the AC-DC converter circuit of the second circuit part outputs a drive current of the luminaire in accordance with a control signal from the control signal generation circuit. In the operating state, when the drive current is not output, the operating state is set.

According to the configuration as described above, since the power supply control device generates and outputs a drive current of the luminaire according to the number of times of reception of the radio signal, the radio signal transmission device transmits a simple radio signal that does not contain information such as a code. In this case, a device for transmitting a radio signal to the power supply control device can be configured as a device having a simple structure or function.

In addition, the power supply control device includes a first circuit portion and a second circuit portion each having an AC-DC conversion circuit for converting an AC voltage into a DC voltage, and the AC-DC conversion circuit of the first circuit portion is always in an operating state. Since the AC-DC conversion circuit of the second circuit portion is in an operating state when outputting a driving current of the lighting fixture, the power consumption during off of the lighting fixture can be reduced. Therefore, an energy-saving LED lamp is used as the lighting fixture. In the case of constructing a dimmable system, the power consumption of the lighting system as a whole can be reduced.

Here, it is preferable to change the illuminance of the luminaire by changing the magnitude of the drive current of the luminaire output from the second circuit unit in accordance with the number of times of reception of the radio signal. As a result, only one switch button is provided in the switch device, and the brightness of the luminaire can be changed each time the user operates the switch device. It becomes simple.

Preferably, the luminaire comprises a red LED, a blue LED lamp and a LED lamp with a green LED, and the second circuit unit is configured to output driving currents according to the color-specific LED lamps, respectively. The two circuits are configured to change the emission color of the luminaire by changing the number and combination of driving currents output in accordance with the number of reception of the radio signal by the receiver. This makes it possible to change the light emission color of the lighting fixture whenever the user operates the switch device, to change the atmosphere of the space in which the lighting system is installed, and to easily realize the optimum visual presentation for the purpose. .

Further, preferably, the control signal generating circuit includes a counter for counting the number of times of reception of the radio signal, and a decoder for decoding the value of the counter to generate the control signal. This simplifies the design change of the circuit in the case of changing the number of steps for changing the brightness of the luminaire or the number of luminous colors.

The control signal generation circuit includes a counter capable of automatic up-and-down updating, a conversion circuit for converting a value of the counter to generate the control signal, and operation of the counter as the receiver receives the radio signal. Counter operation control means for changing the state is provided. As a result, when receiving a radio signal from a radio switch or the like, it is possible to perform dimming control such as fade in and fade out which automatically change the brightness of the luminaire.

Further, preferably, the control signal generation circuit includes storage means for storing an ID code and means for discriminating an ID code included in a radio signal received by the receiver, and included in the radio signal received by the receiver. And a counter operation control means for changing the operation state of the counter in the change mode according to the ID code. In this way, a plurality of radio switches are provided with different ID codes, and the radio signals are included in the radio signals and transmitted, whereby the brightness of the luminaire is changed in different modes according to the ID code received by the control signal generation circuit. Control can be performed.

Moreover, the illumination system which concerns on this application is a power supply control apparatus which has the above structures, the lighting fixture driven and driven by this power supply control apparatus, the switch button, and the energy self-sufficiency apparatus which converts the operating force of this switch button into electrical energy. And a switch device having a built-in device, wherein the switch device includes a transmitter capable of transmitting a radio signal having a predetermined frequency and transmits the radio signal when the switch button is operated. As a result, the amount of energy generated by the energy self-sufficiency device, i.e., the amount of movement of the switch button is reduced, so that the switch device can be miniaturized or thinned.

Also, a plurality of switch devices having a switch button and an energy self-sufficiency device for converting the operating force of the switch button into electrical energy, a plurality of lighting devices, and the power supply control device provided corresponding to each of the plurality of lighting devices are provided. And the plurality of switch devices are configured to be capable of transmitting a radio signal including a unique ID code, respectively, and the power supply control device outputs to the luminaire corresponding to a case where a radio signal including a predetermined ID code is received. It is configured to change the drive current. According to the above configuration, since the ID code included in the radio signal transmitted for each switch device is different, it is possible to execute different dimming control by the power supply control device according to the operated switch device. That is, different functions can be given to each switch device.

Also preferably, the power control device is configured to include a transmitter capable of transmitting a radio signal including an ID code included in the radio signal received by the receiver. As a result, in a lighting system having a plurality of lighting devices provided in a large space such that the wireless signal of one switch device is not transmitted, the dimming control can be performed even for the lighting device to which the wireless signal of the switch device is not transmitted. It becomes possible.

Furthermore, preferably, the switch device comprises an energy self-contained device in a case of a transferable size and constitutes a device in which the switch button is installed on the surface of the case. Thereby, the command for dimming control can be sent anywhere in the space where the lighting system is installed.

As described above, according to the present invention, in an illumination system using a plurality of LED lamps and controlled by a wireless switch, it is possible to control dimming of the plurality of LED lamps only by providing a relatively simple circuit. There is.

1 is a schematic configuration diagram showing a first embodiment of a lighting system to which the present invention is applied.
Fig. 2 is a block diagram showing a circuit configuration example of a power supply control device for LED lamps in the lighting system according to the first embodiment.
Fig. 3 is an explanatory diagram showing the relationship between the count value (count value) and the LED illuminance of the counter circuit in the case of performing the control for changing the illuminance of the LED lamp by the first control method in the illumination system of the first embodiment.
Fig. 4A is a cross-sectional view showing the internal structure of the LED lamp when the second control method is applied in the lighting system of the first embodiment, and Fig. 4B shows the count value (count value) of the counter circuit and the LED. Explanatory drawing which shows the relationship with light emission color.
5 (A) is an explanatory diagram showing an arrangement example of an LED lamp when the third control method is applied in the lighting system of the first embodiment, and (B) is lit with the count value (count value) of the counter circuit. Explanatory drawing which shows the relationship with the area of LED.
Fig. 6 is a block diagram showing an example of the configuration of a sub power system circuit of a power supply control device in a lighting system according to a modification of the first embodiment.
FIG. 7 is an explanatory diagram showing an arrangement example of an LED lamp and a wireless switch in the lighting system according to the second embodiment; FIG.
FIG. 8 is an explanatory diagram showing an arrangement example of an LED lamp and a relationship with a wireless switch in a lighting system according to a modification of the second embodiment; FIG.
9 is a schematic configuration diagram showing an example of a conventional lighting system.
10 is an explanatory diagram showing a relationship between operation of a wireless switch and brightness of an LED lamp in a third embodiment;
Fig. 11 is a block diagram showing a configuration example of hardware on the LED power supply unit side in the third embodiment.
FIG. 12 is an explanatory diagram showing a relationship between operation of a wireless switch at different timings in a third embodiment and brightness of an LED lamp; FIG.
FIG. 13 is an explanatory diagram showing a relationship between an operation of a wireless switch and a brightness of an LED lamp in a first modification of the third embodiment; FIG.
Fig. 14 is a block diagram showing a configuration example of hardware on the LED power supply unit side in the first modification of the third embodiment.
FIG. 15 is a block diagram showing a configuration example of hardware on the LED power supply unit side in the second modification of the third embodiment. FIG.
16 is a flowchart showing an example of a procedure of dimming control processing by the CPU in the second modification of the third embodiment.

(Mode for carrying out the invention)

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(First Embodiment)

1 shows a first embodiment of a lighting system according to the invention which uses a plurality of LED lamps and is controlled by a wireless switch.

As shown in Fig. 1, the illumination system of the present embodiment is provided in correspondence with LED lamps 11a, 11b,. Transmitting a radio signal for dimming control to the LED power supply units 12a, 12b, ..., the main power switch 13 for turning on and off the power of the entire lighting system, and the LED power supply units 12a, 12b, ... A power supply wiring 15 having a wireless switch 14 and supplying an AC power supply voltage from the common AC power supply 10 to the LED power supply units 12a, 12b ... is laid from the inside of the wall of the building to the rear surface of the ceiling. It is. The LED lamps 11a, 11b, ..., and the corresponding LED power supply units 12a, 12b, ... are connected with cables 16a, 16b, ..., respectively.

The wireless switch 14 is a kind of remote controller, and has a switch button 14a on the surface of a portable sized (palm size) case and generates electric power by using a movement of the switch button 14a inside. It is equipped with an electromechanical transducer such as a generator and a transmitter for outputting a radio signal (radio wave) such as 2.4 GHz. In addition, since an energy self-contained wireless switch having a battery having such a structure and a function is known in the related art, a detailed configuration is omitted.

In FIG. 2, the example of a structure of the LED power supply unit 12 which comprises a lighting system is shown.

The LED power supply unit 12 of FIG. 2 includes a current driving circuit (current source) 21 for outputting a driving current for driving the LED lamp with a constant current, and controlling the current driving circuit 21 to supply current to the LED lamp. A current control circuit 22 of varying magnitude, and an AC-DC conversion circuit as a main power supply that receives an AC power supply and generates a DC power supply voltage Vcc2 necessary for the operation of the current drive circuit 21 and the current control circuit 22. 23 is provided.

In addition, the LED power supply unit 12 includes a receiver 24 for receiving a radio signal from the radio switch 14, a counter circuit 25 for counting a pulse signal from the receiver 24, and this counter circuit. Decoder circuit 26 for decoding the output (count value) of (25), and DC power supply voltage Vcc1 necessary for the operation of the receiver 24, the counter circuit 25, and the decoder circuit 26 by receiving AC power. An AC-DC conversion circuit 27 as a sub power source for generating a circuit is provided.

The receiver 24 is configured to output a one-shot pulse signal upon receiving the radio signal from the radio switch 14, and the counter circuit 25 is configured of, for example, 3 bits, and is provided from the receiver 24. Each time a pulse signal is input, the count value is counted up one by one, and a maximum of eight pulses are counted.

The AC-DC conversion circuit 27 as a sub power supply for generating the DC power supply voltage Vcc1 necessary for the operation of the receiver 24, the counter circuit 25, and the decoder circuit 26 always converts an AC voltage into a DC voltage. do. On the other hand, the AC-DC conversion circuit 23 as the main power source for generating the DC power supply voltage Vcc2 necessary for the operation of the current drive circuit 21 and the current control circuit 22 has an AC voltage while the LED lamp is extinguished. It is configured to stop the conversion operation.

Specifically, for example, when a pulse signal enters from the receiver 24 during LED non-lighting, the AC-DC conversion circuit 23 as the main power source is started, and the current drive circuit 21 and the current control circuit 22 are activated. ) Becomes operable. When the drive current output from the current control circuit 22 becomes zero and the LED is switched off, the AC-DC conversion circuit 23 as the main power supply is configured to be turned off.

As described above, the main power is turned off while the LED lamp is turned off, so that the power consumption (standby power) of the LED power supply unit 12 is at least reduced. In this embodiment, since it is not necessary to transmit a radio signal such as a command code from the radio switch 14, the configuration of the circuit on the radio switch 14 side is simple, and it is an example of the radio switch. For example, in the case of using a switch device incorporating an energy self-contained device, the amount of energy generated, i.e., the amount of movement of the switch button is minimized, so that the switch device can be miniaturized or thinned. In addition, since the CPU for decoding the command code is also unnecessary on the power supply unit 12 side, there is an advantage that the circuit is simplified. In addition, in FIG. 2, 20A is a 1st circuit part as a sub power supply system circuit, and 20B is a 2nd circuit part as a main power supply system circuit.

Next, operations of the receiver 24, the counter circuit 25, and the decoder circuit 26 of the first circuit portion 20A operating with the sub power supply will be described with reference to FIGS. 3 to 5. As the dimming control that can be realized by the power supply unit having the configuration as shown in Fig. 2, three methods as described below can be considered.

The first control method counts up the count value of the counter circuit 25 whenever the receiver 24 receives the radio signal from the radio switch 14 and adjusts the brightness of the LED lamp 11 according to the count value. It is a control to change. In addition, in the second control method, as shown in Fig. 4 (A), the LED lamp 11 is composed of a luminaire having a built-in LED of three colors, a red LED, a blue LED and a green LED, and the receiver 24 has a wireless switch. Each time the radio signal from (14) is received, the count value of the counter circuit 25 is counted up, and the light emission color of the LED lamp 11 is changed in accordance with the count value. The third control method is control for changing the lit area.

FIG. 3 shows the relationship between the count value (counter value) and the LED illuminance of the counter circuit 25 in the case of performing control to change the brightness, that is, illuminance, of the LED lamp 11 by the first control method. 3, the numbers "1" to "7" showing the illuminance are brighter as the value is larger, and darker as the value is smaller, and "0" means unlit state. Here, the LED lamp emits light brighter as the current flowing through it increases. Therefore, the larger the value of the numerical value representing the illuminance of FIG. 3, the more the LED driving current is output from the current driving circuit 21.

In the control system of FIG. 3, the value of the counter circuit 25 and the value representing the illuminance are reversed. That is, as the value of the counter circuit 25 increases in order from "1", the output current decreases, and the illuminance decreases in order from "7". If the signal enters from the wireless switch 14 when the value of the counter circuit 25 is " 7 " (illuminance is " 1 "), the count value returns to " 0 ", and the lamp is controlled to be in an unlit state. The counter circuit 25 may be a down counter instead of an up counter.

When the first control method is applied to the lighting system of FIG. 1, the power unit 12 of the plurality of lamps simultaneously receives the signals from the wireless switch 14, and the counter circuit 25 and the decoder circuit 26, respectively. ) Are controlled to be the same, so that the illuminance of all the LED lamps 11 are changed in the same direction all at once. According to Fig. 3, when the first radio signal enters from the radio switch 14, all of the LED lamps 12a, 12b …… illuminate at the highest illuminance, and after that, each time the radio signal enters, the illuminance is in one step. Is controlled to lower.

Fig. 4B shows the relationship between the count value of the counter circuit 25, the lamp to be lit and the light emission color when the control for changing the light emission color of the LED lamp 11 is performed by the second control method. As shown in Fig. 4B, the value of the counter circuit 25 is increased from "1" to "7" every time a received signal enters, and only the blue LED is lit when the count value is "1". When the count value is "2", only the green LED is turned on. When the count value is "3", the blue LED and the green LED are turned on, and the emission color is "cyan". In addition, the relationship between the value of the counter circuit 25 and light emission color is not limited to the same thing as FIG. 4 (B), and may be reversed. In addition, the counter circuit 25 may be a down counter instead of an up counter.

In the case where the second control method is applied to the lighting system of FIG. 1, the signals from the wireless switch 14 are simultaneously received by the power supply units 12 of the plurality of lamps, and the respective counter circuits 25 and decoder circuits 26 are used. By the same operation, all of the LED lamps 11 are controlled to change to the same emission color in unison. According to FIG. 3, when the first radio signal enters from the radio switch 14, all the LED lamps 12a, 12b …… light blue, and every time thereafter the radio signal enters, “Green” and “Cyan”. The light emission color is controlled in order of "red", "magenta", "yellow", and "white".

According to the lighting system to which the second control method is applied, for example, lighting according to the displayed products such as a food sales floor or a clothing sales floor of a retail store, or different illuminations during the day and night, or at an event venue, exhibits or display contents By changing the lighting, you can realize an exhibition or an event such as giving a stronger impression. Moreover, you may set so that the order in which light emission color may change may differ for every LED lamp 12a, 12b .......

5A and 5B schematically show an illumination system to which the third control method is applied. As shown in Fig. 5A, the lighting system to which the third control method is applied is a control method suitable for a relatively large building to which a plurality of LED lamps 11 are attached. In this lighting system, one space is divided into four areas A, B, C, and D, and 36 LED lamps 11 in total are provided in each of nine areas.

These LED lamps 11 are provided in the corresponding LED power supply units, and according to a counter value changed by a radio signal from the radio switch 14, for example, "all lights of four areas"-"area A, The lighting area of the lamp is controlled, such as "lighting of B"-"lighting of areas C and D"-"lighting only of area A"-"lighting only of area B"-"lighting only of area C"-"lighting only of area D" .

The control as described above can be realized by changing the configuration of the decoder circuit for decoding the value of the counter circuit in each area in the LED power supply unit 12 shown in FIG. 2. Specifically, as shown in Fig. 5B, the power supply unit in each area configures the decoder circuit so as to control the lamp to be controlled to be turned on or off according to the counter value according to the value of the counter circuit 25. You can do it. In addition, in FIG. 5, "(circle)" means an unlit state, and "(circle)" means a lit state.

(Modified example)

Next, the modification of the illumination system of the said embodiment is shown. In this modification, the control by the third control method and the control by the first control method are performed in accordance with a radio signal from one radio switch. Specifically, when the radio signal from the radio switch 14 enters the LED power supply unit 12 in the unlit state, first, as shown in FIG. 5, the number of signals (counter value), that is, the number of radio switch presses is shown. Therefore, the area where the lamp is lit is switched. Next, when the radio signal enters the LED power supply unit 12 again after the appropriate time has elapsed, the illuminance of the lamp of the area in which the lighting state is already determined is shown in Fig. 3, and the number of radio signals (counter value). That is, it is controlled to change according to the number of times the wireless switch is pressed.

FIG. 6 shows an example of the configuration of the sub power system circuit 20A of the LED power supply unit 12 which enables the above control. Since the main power system circuit 20B may be the same as that shown in FIG. 2, the illustration is omitted. As shown in FIG. 6, in the sub power supply system circuit 20A of the LED power supply unit 12 of this modification, two counter circuits 25a and 25b for counting the number of radio signals from the radio switch 14 are provided. And two decoder circuits 26a and 26b are provided. The counter circuit 25a and the decoder circuit 26a operate to determine the lit area, and the counter circuit 25b and the decoder circuit 26b operate to determine the illuminance (brightness) of the lit lamp.

In addition, the selector 28 which selectively inputs the pulse signal from the receiver 24 to either the counter circuit 25a or 25b in front of the counter circuits 25a and 25b, and the timer which measures the interval of a pulse. A circuit 28 and a toggle flip-flop (T-FF) 30 whose output is alternately changed to a high level and a low level by a signal (pulse) from the timer circuit 29 are provided.

The timer circuit 29 is configured to output a pulse to the T flip-flop 30 on the rear end when a pulse does not come from the receiver 24 for a predetermined time (for example, 2 to 5 seconds). Since the output state of the T flip-flop 30 is inverted each time a pulse is inputted, the selector 28 is controlled so that the pulse from the receiver 24 can be controlled by the counter circuit 25a or 25b according to the output state of the T-FF. ).

Therefore, in this modification, when the user operates the wireless switch 14 in the lamp off state, the pulses are first supplied from the receiver 24 to the counter circuit 25a so that the lamps of the entire area are turned on first. When continuously operating within a predetermined interval time, the lighting areas are switched in sequence. Then, when the desired area is turned on, once the operation of the wireless switch 14 is stopped, and the wireless switch 14 is continuously operated again after an interval of a predetermined time or more, the timer circuit 29 performs a predetermined time. By outputting the pulse, the output state of the T flip-flop 30 is inverted by the pulse, and the selector 28 is switched to input the pulse from the receiver 24 to the counter circuit 25b. Therefore, the brightness changes in stages in accordance with the number of times the switch is operated.

When the operation of the wireless switch 14 is stopped at the desired brightness point, the illuminance is determined at the brightness at that time. When the timer circuit 29 outputs a pulse by measuring a predetermined time, the output state of the T flip-flop 30 is inverted by the pulse, and the selector 28 causes the pulse from the receiver 24 to counter the circuit. It is in a state of being divorced toward input to 25a. Therefore, when the wireless switch 14 is operated again later, the lighting state (area) of the lamp can be switched, and the operation is performed when the value of the counter circuit 25a returns to "0" by operating the switch several times. By stopping, it can be set to all lamps off.

(Second Embodiment)

Next, a second embodiment of the lighting system according to the present invention will be described.

The illumination system of 2nd Embodiment is comprised so that dimming is possible using the some radio switch which each transmits a unique ID code (object identification code). As the dimming control, the first control method (see FIG. 3) described in the first embodiment is applied. 7 shows an example of the lighting system of the second embodiment.

As shown in FIG. 7, in the illumination system of this embodiment, one space in a building is divided into four areas A, B, C, and D, similarly to the illumination system of FIG. A total of 36 LED lamps 11 are provided in each area, each of nine. The difference from the embodiment of FIG. 5 is that in the illumination system of the present embodiment, the wireless switches 14A, 14B, 14C, and 14D each transmit unique ID codes corresponding to the areas A, B, C, and D. FIG. ) And dimming is enabled by a plurality of wireless switches.

Each wireless switch 14A, 14B, 14C, 14D is provided with a unique ID code, and is configured to carry an ID code on a radio signal and transmit it. The LED power supply unit (not shown) provided corresponding to each LED lamp 11 is composed of a sub power supply circuit and a main power supply circuit in the same manner as shown in FIG. The circuit includes a storage means in which a predetermined ID code is stored in advance, a function of extracting an ID code included in a signal received by a receiver, and a function of determining whether the extracted ID code matches the ID code stored in the storage means. For example, a device or a circuit such as a CPU is provided.

In the embodiment of FIG. 7, the same code as the ID code given to the wireless switch 14A is stored in the LED power supply unit corresponding to the LED lamp 11 in the area A, and corresponds to the LED lamp 11 in the area B. FIG. The same code as the ID code given to the wireless switch 14B is stored in the LED power supply unit. Similarly, the ID code of the radio switch 14C is stored in the LED power supply unit of the area C, and the ID code of the radio switch 14D is stored in the LED power supply unit of the area D.

Dimming control in the illumination system of this embodiment, for example, when a user operates the radio switch 14A, only the LED power supply unit corresponding to the LED lamp 11 of the area A will respond, and FIG. As shown, the value of the internal counter changes with the number of operations of the radio switch 14A. Then, the drive current controlled to change the illuminance of the LED in accordance with the value of the counter is output from the current drive circuit 21 (FIG. 2) to the LED lamp. As a result, only the LED lamp 11 in the area A is controlled for dimming.

When the user operates the wireless switch 14B, only the LED power supply unit corresponding to the LED lamp 11 in the area B reacts, and the driving current of the LED is output, and only the LED lamp 11 in the area B is dimmed. Controlled. Similarly, when the radio switch 14C is operated, only the LED lamp 11 of the area C is dimmed and controlled. When the radio switch 14D is operated, only the LED lamp 11 of the area D is controlled.

(Modified example)

8 shows a modification of the lighting system of the second embodiment.

This modification further adds a common wireless switch 14E having a unique ID code in the lighting system of FIG. 7, and corresponds to all LED power supply units corresponding to each LED lamp 11. In addition to the ID code of the wireless switch, the ID code of the common wireless switch 14E is stored. And when the LED power supply unit receives the ID code of this common wireless switch 14E, it is comprised so that a corresponding LED lamp may light up or off. Therefore, in the lighting system of this modification, when the user operates the common wireless switch 14E, the LED lamps of all the areas A, B, C, and D are controlled to turn on or off at the same time.

In addition, in the lighting system of this modification, the receiver 24 (see Fig. 2) of each LED power supply unit also has a transmission function, so that the received signal is transmitted to the receiver 24 of another LED power supply unit in the vicinity. It is preferable to construct. With this arrangement, for example, in a large-scale lighting system installed in a very large building, even if the radio wave did not come to the power supply unit of all the LEDs because the user operated one of the wireless switches in the corner of the room, The ID code received by one LED power unit is in turn relayed. As a result, even in the case where the radio switch 14A for the area A is operated in the area D where radio waves do not reach, for example, only the LED lamp of the area A can be controlled by dimming.

In addition, the receiver 24 of each LED power supply unit may also be provided with a transmission function to notify the LED power supply units of other areas of the dimming control state of each area. Thus, for example, when the common wireless switch 14E is operated, even if the LED of one of the areas is turned off, if the LED of any other area is on, the light is kept off and the If the LEDs of all areas including the area are turned off, the corresponding LEDs are turned on, and the same control can be performed in the LED power units of other areas to give the common wireless switch 14E a function as a main power switch. have

As mentioned above, although the invention made by this inventor was concretely demonstrated based on the Example, this invention is not limited to the said Example. For example, in the LED power supply unit 12 constituting the lighting system of the above embodiment, the counter circuit 25 that counts the number of operations of the wireless switch 14 and the decoder circuit 26 that decodes the count value are used. However, instead of the counter circuit and the decoder circuit, for example, a toggle flip-flop is provided in which the output is inverted each time a signal from the wireless switch is input, and the internal logic state changes whenever the output of the flip-flop changes. In this case, a sequential circuit configured to output a signal such as one that sequentially changes the magnitude of the drive current, that is, a signal corresponding to the output of the decoder may be used.

In addition, in the illumination system of 2nd Embodiment of FIG. 7 and FIG. 8, although what demonstrated the structure which made the some radio switch correspond to the LED lamp provided in every area, each LED lamp is given a continuous number and the example is given. For example, when the number of wireless switches is four, each wireless switch is associated with an LED lamp having a number of 4n + 1, 4n + 2, 4n + 3, and 4n (n is a positive integer including 0). The dimming control may be performed in units.

As described above, the grouping of the LED lamps may be a sorting system in which some LED lamps belong to a plurality of groups, in addition to the sorting systems that do not overlap each other. Group classification allowing such duplication can be easily realized by storing a plurality of ID codes in one LED power supply unit, whereby control such as changing the brightness with the number of lamps to be lit can be performed.

In the above embodiment, the wireless switch is configured as a remote controller device. In particular, as described in the second embodiment, when the transmitter is incorporated in the power supply unit and configured to enable bidirectional communication, the plurality of wireless switches may be connected to the door. It is also possible to provide it as a fixed type switch device which is concentrated and arranged in one place such as a wall nearby.

In addition to transmitting the ID code from the wireless switch, the command code may also be transmitted, and the power supply unit may be provided with a function for decoding the command code. As a result, more complicated control is possible, such as directly turning on or off, setting to a desired illuminance, or setting a desired color tone, without a dimming operation, only to a required area or a specific LED lamp among a plurality of LED lamps. In addition, each of these control may be performed by individual radio switches, and some control may be performed by one radio switch. In addition, the wireless switch 14 is not limited to an energy self-sufficient type, and may operate with a battery (small battery) depending on embodiment.

(Third Embodiment)

Next, a third embodiment of the lighting system according to the present invention will be described.

The lighting system of the third embodiment is configured to have a fade in and fade out dimming function in which the LED lamp automatically brightens or darkens when the wireless switch is operated. Specifically, as shown in FIG. 10, when the wireless switch is operated once, the LED lamp is gradually brightened, and when the brightness reaches 100%, the LED lamp is maintained. The LED lamp is gradually dark when the wireless switch is operated again. LED power unit 12 is configured to maintain the state when the brightness reaches 100%.

FIG. 11 shows an example of the configuration of the sub power system circuit 20A of the LED power supply unit 12 that enables the dimming control as described above. Since the main power system circuit 20B may be the same as that shown in FIG. 2, the illustration is omitted.

As shown in FIG. 11, the sub power supply system circuit 20A of the LED power supply unit 12 of this embodiment includes a receiver 24 that receives a radio signal from the radio switch 14, and a clock of a predetermined frequency. An oscillator 31 for generating a signal CK, an up counter circuit 25a and a down counter circuit 25b for counting clocks, and a decoder circuit 26 as a conversion circuit for decoding the values of these counters are provided. have. The up counter circuit 25a is used for dimming control to gradually lighten the LED lamp, and the down counter circuit 25b is used for dimming control to gradually darken the LED lamp. Instead of the decoder circuit 26, a DA converter (DAC) may be used. In the case where a DAC is used, a configuration in which the current control circuit 22 is omitted and the current drive circuit 21 is controlled by the output of the DAC may be possible depending on the circuit type.

In the sub power system circuit 20A, the selector 28 for selectively inputting the clock CK from the oscillator 31 to either the counter circuit 25a or 25b at the front end of the counter circuits 25a and 25b. And a toggle flip-flop (T-FF) 30 which is alternately changed to a high level and a low level by a pulse that is output each time the receiver 24 receives the radio signal from the radio switch 14. It is.

Since the output state of the T flip-flop 30 is inverted each time a pulse is inputted, the selector 28 is controlled so that the clock CK from the oscillator 31 is countered with the output state of the T-FF. Or 25b). Further, the up counter circuit 25a and the down counter circuit 25b are configured such that the count value does not change even if the clock enters more than the maximum value or the minimum value, respectively. Then, when the output of the T flip-flop 30 is inverted, the value of the down counter circuit 25b is set to the maximum value when Q is changed to the high level, and the up counter circuit ( The value of 25a) is reset to the minimum value.

In the present embodiment, the up counter circuit 25a and the down counter circuit 25b are configured by, for example, an 8-bit counter so that the brightness of the LED lamp can be controlled to be gradually changed in 256 steps.

In addition, when 20 A of sub power supply system circuits of the LED power supply unit 12 are comprised as shown in FIG. 11, for example, as shown in FIG. 12, an up counter is performed by the first radio switch operation. If the wireless switch is operated again while the circuit 25a is operating and the brightness of the LED lamp is gradually increasing, the down counter circuit 25b is operated to gradually decrease the brightness of the LED lamp, and the wireless switch is operated again. When the down counter circuit 25b operates, the dimming control can be performed such that the brightness of the LED lamp is gradually increased.

(Modification 1)

13 and 14 show a first variant of the third embodiment of the lighting system according to the invention. This modification is intended to stop the change in brightness when the wireless switch is operated while the brightness of the LED lamp is changing.

Specifically, as shown in Fig. 13, when the wireless switch is initially operated, the brightness of the LED lamp gradually increases, and when the wireless switch is operated in the middle, the LED lamp maintains the brightness, and the wireless switch is turned on again. When operated, the brightness of the LED lamp rises again. When the brightness reaches 100%, it is possible to perform dimming control such as the brightness of the LED lamp becomes dark.

The above control can be performed by, for example, configuring the sub power supply system circuit 20A of the LED power supply unit 12 as shown in FIG. 14.

The sub power system circuit 20A of FIG. 14 is similar to the sub power system circuit 20A of FIG. 10. The difference is that RS flip-flop (RS-FF) 32, in addition to T flip-flop (T-FF) 30, whose output is inverted each time receiver 24 receives a radio signal from wireless switch 14. And an AND gate 33 for controlling the supply of the clock CK, and controlling the AND gate 33 at the output of the T-FF 30 to pass the clock CK every time a wireless signal is received. Interceptions are to be repeated alternately.

In the present embodiment, a signal indicating whether the up counter circuit 25a and the down counter circuit 25b have reached the maximum value or the minimum value, respectively, is supplied to the RS-FF 32, and the RS-FF 32 The reset state is set by the signal output when the up counter circuit 25a reaches the maximum value, and is set by the signal output when the down counter circuit 25b reaches the minimum value. When the selector 28 is controlled by the output of the RS-FF 32, and the up counter circuit 25a reaches the maximum value and the brightness reaches 100%, the clock CK becomes the down counter circuit ( 25b). When the down counter circuit 25b reaches the minimum value and the brightness reaches 0%, the clock CK is supplied to the up counter circuit 25a. This enables the dimming control operation as shown in FIG. 13.

(Modified example 2)

15 and 16 show a second variant of the third embodiment of the lighting system according to the invention. In this modification, the dimming control as shown in Fig. 13 is realized by CPU (microcomputer) program control.

FIG. 15 shows an example of the configuration of hardware on the LED power supply unit 12 side in this modification.

As shown in FIG. 15, in this modification, the CPU 41, the receiver 42, and the RAM are provided on the LED power supply unit 12 side in addition to the sub power supply system circuit 20A and the main power supply system circuit 20B. The communication module 40 equipped with the memory 43 etc. which consist of a random access memory, ROM (lead only memory), etc. is provided. The communication module 40 may be regarded as included in the sub power system circuit by being configured to supply and operate a DC voltage from the AC-DC converter 27.

In this modification, a DA converter (DAC) 26 as a conversion circuit for converting data representing a level of brightness sent from the CPU 41 into a voltage or current value is provided in the sub power supply system circuit 20A. From the CPU 41 to the DA converter 26, an operation clock CLK of the DAC, data indicating the level of brightness, a signal LD indicating the valid period or the reception timing of the data are transmitted, and the CPU From 41, a signal ON / OFF is commanded to the main power supply system circuit 20B (AC-DC converter 23) to turn on / off the power, that is, turn on / off the LED.

Next, dimming control by the CPU 41 will be described. 16 shows an example of a flowchart of the procedure of the dimming control process by the CPU 41. The control program according to this flowchart is stored in the memory 43 in the communication module 40 or the ROM in the CPU 41, and the dimming control process is executed by executing the program by the CPU 41.

As shown in Fig. 16, in the dimming control process of the present embodiment, first, the DA converter (DAC) 26 performs a process of initializing the input level of the DAC, that is, "0" (step S11). Subsequently, the internal processing state is set to fade in (step S12), and it is determined whether or not "1" is formed in the reception flag indicating whether or not a signal from the wireless switch has been received (step S13). "0" of the reception flag indicates that a signal from the wireless switch has not been received, and "1" of the reception flag indicates that a signal from the wireless switch has been received. If it is determined in step S13 that the reception flag is not "1" (No), the step S13 is repeatedly executed to wait for "1" to be formed in the reception flag.

If it is determined in step S13 that the reception flag is "1" (Yes), the flow proceeds to step S14, and after the reception flag is cleared (step S14), it is determined whether the internal processing state is set to fade in (step S14). S15). If it is determined in step S15 that the fade in is set (Yes), the flow proceeds to step S16, where the DAC input level indicating the degree of brightness of the DAC, that is, the brightness of the LED, is "+1" (incremented). The value is transmitted to the DAC as input data (step S17). Therefore, the CPU 41 that executes the program along this flowchart has the function of a counter.

Next, it is determined whether or not the updated DAC input level is set to "255" which is the maximum value (step S18). If it is determined that the DAC input level is not "255" (No), it jumps to step S24. If it is determined in step S18 that the DAC input level is "255" (Yes), the flow advances to step S19 to set the internal processing state to fade out, and then proceeds to step S24.

On the other hand, if it is determined in step S15 that the fade in is not set (No), the flow advances to step S20 to set the input value of the DAC, that is, the DAC input level indicating the degree of brightness of the LED to "-1" (decrement). The value is transmitted to the DAC as input data (step S21).

Next, it is determined whether or not the updated DAC input level has reached "0" which is the minimum value (step S22). If it is determined that the DAC input level is not "0" (No), it jumps to step S24. If it is determined in step S22 that the DAC input level is "0" (Yes), the flow proceeds to step S2, the internal processing state is set to fade in, and then the flow proceeds to step S24.

In step S24, it is determined whether or not "1" is formed in the reception flag, that is, whether or not a signal from the wireless switch is received again. If it is determined that the reception flag is not "1" (No), the process returns to step S15. The process of said step S15-23 is repeated. If it is determined in step S24 that the reception flag is "1" (Yes), the flow advances to step S25 to clear the reception flag. Then, the process returns to step S13 and the processes of steps S13 to 25 are repeated. By performing the processing according to such a procedure, the dimming control as shown in FIG. 13 becomes possible.

In addition, in this second modification, the flowchart for enabling the dimming control as shown in FIG. 13 to be executed by the program has been described. Similarly, the dimming control and the dimming control as shown in FIG. It is also possible to construct the LED power supply unit 12 so that the dimming control as shown in the figure can be executed by a program.

(Modification 3)

According to a third modification of the third embodiment of the lighting system according to the present invention, different ID codes are assigned to the plurality of wireless switches, respectively, and the wireless switches are configured to carry ID codes on the radio signals when the buttons are operated.

On the other hand, the LED power supply unit 12 in this modification is configured to include hardware as shown in FIG. 15, and the program executed by the CPU 41 is stepwise dimming as shown in FIG. 3. The control function (function # 1), the dimming control function (function # 2) of the simple fade in and out method as shown in FIG. 10, and FIG. It is constructed to have a function capable of performing dimming control according to a plurality of patterns or sequences, such as a fade-out dimming control function (function # 3).

In the ROM of the memory 43 and the like on the LED power supply unit 12 side, a function table for storing the functions # 1 to # 3 and the ID code of the wireless switch in association with each other is provided, and the CPU 41 When the ID code from the wireless switch is received, the function is configured to refer to the function table and to perform dimming control corresponding to the function in which the ID code is registered.

In the lighting system using the LED power supply unit configured as described above, a plurality of wireless switches having different ID codes are prepared, and when the user operates any one of the wireless switches, the dimming control is changed in a different pattern according to the operated wireless switch. Since is executed, there is an advantage that various dimming patterns according to the user's wishes can be realized. In addition, as the wireless switch, since the ID codes to be stored are different but the same hard configurations can be used, there is an advantage that the cost increase can be suppressed.

As mentioned above, although various specific examples were given and demonstrated about 3rd embodiment, this invention is not limited to said 3rd embodiment. For example, in the third modified example, the ID codes of the plurality of wireless switches are stored in the function table in the memory of the LED power supply unit in advance, that is, the fixed type. Operation means, and when the wireless switch is operated while the operation means is being operated or immediately after it is operated, registering the ID code transmitted from the wireless switch with a new or additional function table in the memory of the LED power supply unit. The same function may be formed.

In this case, the dimming control function corresponding to the ID code can be changed and registered according to the number of operations of the key switch or the key switch operated among the plurality of key switches.

Instead of using a plurality of wireless switches having different ID codes, it is also possible to configure the LED power supply unit to be controlled by a remote controller capable of transmitting a plurality of types of command codes.

As mentioned above, although what applied this invention to the LED lighting system which is the background which used as the background was demonstrated, this invention is not limited to this, The lighting system using the lighting fixtures other than LED lamp, of course, The acoustic system which installed several speakers It can also be used for a voice guidance system, an aroma system in which a plurality of aroma devices capable of emitting an arbitrary scent are provided.

10 AC power 11a, 11b LED lamp (lighting fixture)
12a, 12b LED Power Unit (Power Control Unit)
13 Main Power Switch 14 Wireless Switch (Switch Unit)
15 Power Wiring 16a, 16b Cable
20A sub power supply circuit (first circuit) 20B main power supply circuit (second circuit)
28 selector

Claims (10)

A power supply control device capable of controlling the illuminance of the luminaire by outputting a current driving the luminaire and controlling the current,
A first circuit portion having a receiver capable of receiving a radio signal of a predetermined frequency, a control signal generation circuit for generating a control signal according to the number of times of reception of the radio signal by the receiver;
And a second circuit part which generates and outputs a current according to the control signal from the first circuit part,
The first circuit portion and the second circuit portion respectively prepare an AC-DC conversion circuit for converting an AC voltage into a DC voltage,
When the AC-DC converter circuit of the first circuit part is always in an operating state, and the AC-DC converter circuit of the second circuit part outputs a drive current of the luminaire in accordance with a control signal from the control signal generation circuit. A power supply control device characterized by being in an operating state and in an inoperative state when no driving current is output. The power supply control device according to claim 1, wherein the illuminance of the luminaire is changed by changing the magnitude of a driving current of the luminaire output from the second circuit unit according to the number of times of reception of the radio signal. According to claim 1, wherein the luminaire is composed of a LED lamp containing a red LED, a blue LED and a green LED, wherein the second circuit portion is configured to be capable of outputting a driving current, respectively, according to the LED lamp of each color, And the second circuit unit is capable of changing the color of light emitted from the luminaire by changing the number and combination of drive currents output according to the number of times of reception of the radio signal by the receiver. 4. The control signal generating circuit according to any one of claims 1 to 3, wherein the control signal generating circuit includes a counter for counting the number of times of reception of the radio signal, and a decoder for decoding the value of the counter to generate the control signal. Power control device characterized in that. 2. The apparatus of claim 1, wherein the control signal generation circuit comprises: a counter capable of automatic up or down updating, a conversion circuit for converting a value of the counter to generate the control signal, and the receiver receiving the radio signal. And counter operation control means for changing the operation state of the counter accordingly. 6. The control signal generating circuit according to any one of claims 1 to 5, wherein the control signal generation circuit includes storage means for storing an ID code and means for discriminating an ID code included in a radio signal received by the receiver. And a counter operation control means for changing the operation state of the counter in a change mode according to the ID code included in the radio signal received by the receiver. The power supply control device in any one of Claims 1-5, the lighting fixture driven by this power supply control device, a switch button, and the energy self-sufficiency device which converts the operating force of this switch button into electrical energy is built-in. A lighting system with a switch device
And said switch device comprises a transmitter capable of transmitting a radio signal of a predetermined frequency, and is configured to transmit said radio signal when said switch button is operated. A plurality of switch devices having a switch button and an energy self-contained device for converting the operating force of the switch button into electrical energy, a plurality of lighting devices, and the power supply control according to claim 6 provided in correspondence with each of the plurality of lighting devices. Equipped with a device,
Each of the plurality of switch devices is configured to be capable of transmitting a radio signal including a unique ID code, and the power control device outputs a driving current output to the luminaire corresponding to a case where a radio signal including a predetermined ID code is received. Lighting system, characterized in that for changing the. The lighting system according to claim 8, wherein the power control device includes a transmitter capable of transmitting a radio signal including an ID code included in the radio signal received by the receiver. 10. The switch device according to any one of claims 7 to 9, wherein the switch device comprises an energy self-contained device in a case of a transferable size, and the switch button is provided on the surface of the case. Lighting system.

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