JP6161751B2 - Lighting system and lighting fixture - Google Patents

Description

  The present invention relates to a lighting system and a lighting fixture.

  In recent years, instead of incandescent bulbs and fluorescent lamps, LEDs (Light Emitting Diodes) have become widespread as illumination light sources. Examples of the dimming method of the LED lighting apparatus include a phase control method, a signal line method, a PLC (Power Line Communication) method, and a wireless method. The phase control method is a method of adjusting light by adjusting the phase of the AC voltage supplied to the lighting fixture. In the signal line system, a signal line independent from the power line for supplying power to the lighting fixture is used. In other words, the signal line method is a method of dimming by transmitting a control signal for dimming from a controller to a lighting fixture via an independent signal line. The PLC method is a method of dimming by transmitting a control signal for dimming from the controller to the lighting fixture via a commercial power line connecting the controller and the lighting fixture. The wireless method is a method of adjusting light by transmitting a control signal for dimming from a controller to a lighting fixture using a wireless signal as a medium. Therefore, in the wireless system, the controller includes a transmission circuit for transmitting a wireless signal, and the lighting fixture includes a reception circuit for receiving the wireless signal.

JP 2011-171006 A

  However, in the case of the phase control method, only one type of control signal can be sent by adjusting the phase of the AC voltage, so it is difficult to send different control signals to LEDs of different colors. Therefore, the phase control method is not suitable for toning control. In the case of the signal line system, wiring and control circuits are required as many as the number of types of signals to be transmitted, and the configuration becomes complicated. In the PLC system, since a control signal is superimposed on the commercial power supply line, an electrical influence on other electrical equipment connected to the commercial power supply line may occur, and malfunction may occur in the other electrical equipment. In the case of the PLC system, the lighting apparatus may be affected by noise generated from other electrical devices and malfunction. In the case of the wireless system, a transmission circuit is necessary on the transmission side of the control signal and a reception circuit is necessary on the reception side, so that the configuration is complicated. In the case of a wireless system, it is necessary to give an address to each lighting device connected to the controller (transmission circuit). In addition, address grouping is required. Therefore, the control becomes complicated.

  The present invention has been made in view of the above problems, and an object thereof is to provide a lighting system and a lighting fixture that have a simple configuration and can easily perform dimming control or dimming toning control. And

  A lighting system disclosed in the present application includes a lighting control device connected to an external power supply that supplies a voltage via a power line, and a lighting fixture connected to the power line via the lighting control device. The illumination control device includes a switch unit that controls conduction of the voltage so that the waveform of the voltage has a set pattern in a control signal setting section. The lighting fixture includes a lighting power supply unit and a signal generation unit. The lighting power supply unit supplies power to the lighting load based on the voltage transmitted through the switch unit. The signal generation unit generates a control signal for controlling the operation of the lighting power supply unit based on the notch pattern.

  In the illumination system disclosed in the present application, the lighting load may include illumination elements of a plurality of colors that emit light having different light colors. In this case, light emitted from each of the lighting elements of the plurality of colors may be mixed and light of any light color may be emitted from the lighting fixture.

  In the illumination system disclosed in the present application, the ratio of currents flowing through the illumination elements of the plurality of colors may be controlled by the control signal, and the light color of light generated from the lighting load may be adjusted.

  In the lighting system disclosed in the present application, the total amount of currents flowing through the lighting elements of the plurality of colors may be controlled by the control signal, and the amount of light generated from the lighting load may be adjusted.

  In the illumination system disclosed in the present application, the notch pattern may include a first pattern indicating a light amount and a second pattern indicating a light color. The signal generation unit generates a first digital signal corresponding to the cutout of the first pattern and a second digital signal corresponding to the cutout of the second pattern, and the first digital signal and the The control signal may be generated based on the second digital signal.

  The lighting system disclosed in the present application may include a plurality of the lighting fixtures. The plurality of lighting fixtures may be connected in parallel to the power line.

  The lighting system disclosed in the present application may include a plurality of the lighting fixtures. The plurality of lighting fixtures may be connected in parallel to the power line, and an address may be set for each of the plurality of lighting fixtures. In this case, the signal generation unit of each of the plurality of lighting fixtures may control the control based on the notch pattern when the notch pattern includes a pattern indicating the same address as its own address. A signal may be generated.

  In the illumination system disclosed in the present application, the switch unit may control conduction of the voltage so that a waveform of the voltage repeatedly includes the notch pattern.

  In the illumination system disclosed in the present application, the switch unit may include a semiconductor switch.

  In the illumination system disclosed in the present application, an AC voltage may be supplied from the external power source, and the lighting power supply unit may include a rectifier circuit and a smoothing circuit. The rectifier circuit rectifies the AC voltage transmitted through the switch unit, and the smoothing circuit smoothes the output of the rectifier circuit. The signal generation unit may generate the control signal based on the notch pattern of the voltage rectified by the rectifier circuit.

  In the illumination system disclosed in the present application, the switch unit may continuously pass the AC voltage in a section other than the control signal setting section.

  In the illumination system disclosed in the present application, the illumination control device may further include a zero-cross detector that detects a zero-cross of the AC voltage. The switch unit may control conduction of the AC voltage based on a detection result of the zero cross detection unit.

  In the illumination system disclosed in the present application, in the half wave of the AC voltage, the switch unit cuts off the waveform of the half wave from the zero cross where the half wave starts to a position less than 90 degrees of the phase angle of the half wave. As described above, the conduction of the AC voltage may be controlled.

  In the illumination system disclosed in the present application, the illumination control device may further include a drive unit that generates a drive signal for the switch unit. In addition, while the switch unit continuously allows the AC voltage to pass through, the driving unit is configured such that, for each half wave of the AC voltage, from the zero cross where the half wave starts to just before the zero cross where the half wave ends. A drive signal may be generated.

  The lighting fixture disclosed in the present application includes a lighting power supply unit and a signal generation unit. The lighting power supply unit is transmitted via a switch unit that controls conduction of the voltage so that a waveform of a voltage supplied from an external power source has a set notch pattern in a control signal setting section. Based on the voltage, power is supplied to the lighting load. The signal generation unit generates a control signal for controlling the operation of the lighting power supply unit based on the notch pattern.

  According to the present invention, dimming control or dimming toning control can be easily performed with a simple configuration.

It is a block diagram which shows the principal part of the illumination system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the switch part which concerns on embodiment of this invention. It is a figure for demonstrating an example of the drive signal which concerns on embodiment of this invention. It is a figure which shows the example of a connection of LED which concerns on embodiment of this invention. It is a figure which shows an example of the smoothing circuit which concerns on embodiment of this invention. It is a figure which shows a part of example of the constant current circuit which concerns on embodiment of this invention. It is a figure which shows an example of the signal generation part which concerns on embodiment of this invention. It is a figure which shows an example of the signal waveform of each part of the signal generation part which concerns on embodiment of this invention. It is a figure which shows an example of the output waveform of the waveform conversion circuit which concerns on embodiment of this invention. It is a figure which shows an example of the signal waveform of each part of the illumination system which concerns on embodiment of this invention. It is a figure which shows the outline | summary of an example of the digital signal which the control part of the lighting fixture which concerns on embodiment of this invention generates. It is a figure which shows the structure of an example of the digital signal which the control part of the lighting fixture which concerns on embodiment of this invention generates. It is a figure which shows an example of the control signal which concerns on embodiment of this invention. It is a figure for demonstrating the reading error of the signal by the control part of a lighting fixture. It is a figure for demonstrating the other example of the drive signal which concerns on embodiment of this invention. It is a figure which shows the other structure of the lighting fixture which concerns on embodiment of this invention. It is a figure which shows the other structure of the signal generation part which concerns on embodiment of this invention. It is a figure for demonstrating an example of the inversion pulse signal which concerns on embodiment of this invention. It is a figure which shows schematic structure of the illumination system which concerns on Embodiment 2 of this invention. It is a block diagram which shows the principal part of the lighting fixture which concerns on Embodiment 2 of this invention. It is a figure which shows an example of the address set to the lighting fixture which concerns on Embodiment 2 of this invention. It is a figure which shows schematic structure of the illumination system which concerns on Embodiment 3 of this invention. It is an external view of the controller which concerns on Embodiment 3 of this invention. It is an external view of the other example of the controller which concerns on Embodiment 3 of this invention. It is a figure which shows schematic structure of the illumination system which concerns on Embodiment 4 of this invention. It is a block diagram which shows the principal part of the controller which concerns on Embodiment 4 of this invention. It is an external view of the controller which concerns on Embodiment 4 of this invention. It is a block diagram which shows the principal part of the lighting fixture which concerns on Embodiment 5 of this invention. It is an external view of the lighting fixture which concerns on Embodiment 6 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated. In order to facilitate understanding, the drawings schematically show each component as a main component.

  Examples of the dimming method of the LED lighting apparatus include a phase control method, a signal line method, a PLC (Power Line Communication) method, and a wireless method. The phase control method is a method of adjusting light by adjusting the phase of the AC voltage supplied to the lighting fixture. In the signal line system, a signal line independent from the power line for supplying power to the lighting fixture is used. In other words, the signal line method is a method of dimming by transmitting a control signal for dimming from a controller to a lighting fixture via an independent signal line. The PLC method is a method of dimming by transmitting a control signal for dimming from the controller to the lighting fixture via a commercial power line connecting the controller and the lighting fixture. The wireless method is a method of adjusting light by transmitting a control signal for dimming from a controller to a lighting fixture using a wireless signal as a medium. Therefore, in the wireless system, the controller includes a transmission circuit for transmitting a wireless signal, and the lighting fixture includes a reception circuit for receiving the wireless signal.

  However, the phase control method does not require a dedicated signal line for performing dimming control, and thus has an advantage that it is suitable for dimming control. On the other hand, the phase of the AC voltage is adjusted to generate one type of control signal. Since they can only be sent, it is difficult to send different control signals to the LEDs of different colors, which is not suitable for color matching control. The signal line system such as the PWM system has the merit that the control signal can be surely transmitted from the controller to the lighting apparatus, but the wiring and control circuits are required for the number of types of signals transmitted from the controller to the lighting apparatus. Has the disadvantage of becoming complicated. The PLC system has an advantage that the control signal is superimposed on the commercial power supply line, so that the wiring is reduced. On the other hand, the electrical effect on other electrical equipment connected to the commercial power supply line occurs, There is a demerit that malfunction may occur. Further, in the case of the PLC system, there is a demerit that the lighting apparatus may be malfunctioned due to the influence of noise generated from other electric devices. The wireless system has an advantage that less wiring is required, while a transmission circuit is required on the transmission side of the control signal and a reception circuit is required on the reception side, so that the configuration is complicated. In the case of a wireless system, it is necessary to give an address to each lighting device connected to the controller (transmission circuit). In addition, address grouping is required. Therefore, there is a demerit that the control becomes complicated.

  The lighting system and the lighting fixture according to the present embodiment have a simple connection configuration such as wiring and can easily control the lighting fixture as compared to the conventional technology as described above.

(Embodiment 1)
FIG. 1 is a block diagram showing a main part of a lighting system 1 according to Embodiment 1 of the present invention. As shown in FIG. 1, the lighting system 1 includes a controller (an example of a lighting control device) 2 and a lighting fixture 3. The controller 2 is electrically connected to the commercial power source 5 and supplied with power from the commercial power source 5. The lighting fixture 3 is electrically connected to the commercial power source 5 via the controller 2 and is supplied with power from the commercial power source 5.

  The controller 2 is a device that controls the light amount and light color (for example, correlated color temperature) of light generated from the lighting fixture 3, and the light amount and light color of light generated from the lighting fixture 3 or when the controller 2 is started up. When changing one of them, the signal which sets a light quantity and a light color is transmitted to the lighting fixture 3 through power line 4a, 4b. The luminaire 3 generates light of light amount and light color according to a signal for setting the light amount and light color transmitted from the controller 2.

  Specifically, the controller 2 has a switch unit 21 and is supplied from the commercial power source 5 when the controller 2 is activated or when the light quantity and the light color of the light generated from the lighting fixture 3 or one of them is changed. The switch unit 21 controls the conduction of the AC voltage supplied from the commercial power supply 5 so that the waveform of the AC voltage has a notch pattern set in the control signal setting section. An AC voltage having this notch pattern is transmitted to the lighting fixture 3. The lighting fixture 3 uses an AC voltage having a notch pattern as an energy source for generating light, while changing the light amount and light color of the light to the light amount and light color according to the notch pattern. That is, the notch pattern included in the control signal setting section is transmitted to the lighting fixture 3 as a signal for setting the light amount and the light color.

  As mentioned above, the signal which sets the light quantity and light color of the light which generate | occur | produce from the lighting fixture 3 is transmitted to the lighting fixture 3 from the controller 2 via power line 4a, 4b. Therefore, it is possible to perform dimming and tonal control without laying a dedicated signal line for transmitting a control signal.

  Hereinafter, the lighting system 1 will be described in more detail. The controller 2 is a four-wire controller and is laid on an indoor wall or the like. The luminaire 3 is, for example, a downlight or indirect illumination. The controller 2 and the luminaire 3 are electrically connected to the commercial power source 5 via the power lines 4a and 4b, respectively. The commercial power source 5 supplies power to the controller 2 and the lighting fixture 3 through the power lines 4a and 4b.

  The controller 2 includes a switch unit 21, a drive unit 22, an input unit 23, a display unit 24, and a first control unit 25.

  The switch unit 21 is interposed in the power line 4a. The switch unit 21 controls conduction of the AC voltage supplied from the commercial power supply 5 so that the waveform of the AC voltage supplied from the commercial power supply 5 has a set notch pattern in the control signal setting section. . Moreover, the switch part 21 allows an alternating voltage to pass continuously in areas other than a control signal setting area. The drive unit 22 generates a drive signal that drives the switch unit 21. The first control unit 25 controls the operation of the switch unit 21 via the drive unit 22.

  The switch element included in the switch unit 21 is preferably a semiconductor switch. In this embodiment, since the commercial power supply 5 is used as a power supply, it is preferable to use a bidirectional thyristor (so-called triac) which is an example of a semiconductor switch as a switch element included in the switch unit 21. In the present embodiment, a bidirectional thyristor is used as a switch of the switch unit 21. FIG. 2 is a diagram illustrating an example of the switch unit 21. As shown in FIG. 2, the drive unit 22 is electrically connected to the gate of the bidirectional thyristor 6. The drive unit 22 generates a drive signal that drives the gate of the bidirectional thyristor 6. Specifically, the drive unit 22 generates a pulsed drive signal that turns on the bidirectional thyristor 6.

  Returning to FIG. The input unit 23 of the controller 2 is a user interface and includes, for example, a plurality of push buttons. The user can instruct to change at least one of the light amount and the light color of the light generated from the lighting fixture 3 via the input unit 23. A change instruction by the user is input to the first control unit 25 via the input unit 23.

  The first control unit 25 is a microcomputer, for example. The first control unit 25 sets a notch pattern in accordance with a change instruction from the user. And the 1st control part 25 controls operation | movement of the switch part 21 via the drive part 22 so that the waveform of an alternating voltage may have the set pattern of a notch in a control signal setting area. Specifically, the first control unit 25 sets a first pattern indicating the amount of light and a second pattern indicating the light color as the notch pattern. The setting of the first pattern and the second pattern may be realized by storing a lookup table in the storage unit 25a of the first control unit 25, for example.

  For example, when the user instructs to change the light amount and the light color, the first control unit 25 sets first and second patterns respectively indicating the light amount and the light color designated by the user. When the user instructs only the change of the light amount, the first control unit 25 sets a first pattern indicating the light amount indicated by the user and a second pattern indicating the current light color.

  The first control unit 25 may store information on the light amount and light color input (registered) by the user via the input unit 23 in the storage unit 25a. Thereby, for example, when the controller 2 is turned on, the first control unit 25 can set a notch pattern using the light amount and light color information stored in the storage unit 25a. Therefore, when the power is turned on, it is possible to reproduce the light amount and light color registered by the user last time.

  In addition, the first control unit 25 controls the display unit 24 to display information that visually assists the user in registering the light amount and the light color on the display unit 24. Specifically, the display unit 24 displays information on the specified light quantity and light color at an initial stage immediately after the lighting system 1 is installed in a house, office, or the like. The information on the prescribed light quantity and light color is stored in the storage unit 25a, and the light of the prescribed light quantity and light color is emitted from the lighting fixture 3 in the initial stage. Thereafter, the display unit 24 displays information on the light amount and the light color according to the change instruction input via the input unit 23. Thereby, the user can register a desired light amount and light color while viewing the display unit 24.

  In this embodiment, since the commercial power supply 5 is used as the power supply, the controller 2 includes a zero-cross detection unit 26. The zero cross detection unit 26 detects the zero cross point of the AC voltage waveform, and the first control unit 25 controls the operation of the switch unit 21 (turn on of the bidirectional thyristor 6) based on the detection result of the zero cross detection unit 26. Specifically, the first control unit 25 controls the timing at which the drive unit 22 generates a drive signal based on the detection result of the zero cross detection unit 26.

  FIG. 3 is a diagram illustrating an example of the drive signal 61 generated by the drive unit 22. Specifically, FIG. 3A shows the AC voltage 51 that has passed through the switch unit 21, and FIG. 3B shows the drive signal 61.

  As shown in FIG. 3, when the cutout 53 is formed in the waveform of the AC voltage 51, the generation of the drive signal 61 is started at a timing T delayed by a predetermined time from the zero cross point 52 where the half wave of the AC voltage 51 starts. (The drive signal 61 rises). In the present embodiment, since the switch element of the switch unit 21 is the bidirectional thyristor 6, when the bidirectional thyristor 6 is not fired at the zero cross point 52, the bidirectional thyristor 6 is turned off at the zero cross point 52. Therefore, by starting the drive signal 61 at a timing T delayed by a predetermined time from the zero cross point 52 where the half wave of the AC voltage 51 starts, the bidirectional thyristor 6 becomes predetermined from the zero cross point 52 where the half wave of the AC voltage 51 starts. The turn-on is performed at the timing T which is delayed for the time. As a result, a notch 53 having a predetermined width is formed in the waveform of the AC voltage 51.

  The firing angle of the bidirectional thyristor 6 is less than 90 degrees. As a result, the half-wave waveform of the AC voltage 51 is cut out from the zero cross point 52 where the half-wave starts to a position where the half-wave phase angle is less than 90 degrees. Thus, by making the firing angle of the bidirectional thyristor 6 less than 90 degrees, the generation of noise can be suppressed. More preferably, the bidirectional thyristor 6 is fired within a range of 2.5 milliseconds from the zero cross point 52 where the half wave of the AC voltage 51 starts. This cuts out the half-wave waveform of the AC voltage 51 from the zero cross point 52 where the half-wave starts to a position within 2.5 msec, thereby suppressing the loss of power sent to the lighting fixture 3. it can.

  On the other hand, when the switch unit 21 conducts the half wave of the AC voltage 51, the drive signal 61 rises at the zero cross point 52 where the half wave starts and falls before the zero cross point 52 where the half wave ends. That is, the first control unit 25 controls the drive unit 22 so that the drive signal 61 is generated from the zero cross point 52 where the half wave of the AC voltage 51 starts to the point before the zero cross point 52 where the half wave ends. The timing at which the drive signal 61 falls is determined by the first control unit 25 determining the frequency of the AC voltage 51.

  The controller 2 has been described above. The controller 2 includes a power supply circuit (not shown). The power supply circuit is electrically connected to the power lines 4a and 4b, and generates power necessary for the operation of each part of the controller 2 based on the AC voltage 51 transmitted through the power lines 4a and 4b. The input unit 23 may be formed with a touch panel. The touch panel may be provided on the display unit 24. The input unit 23 can include an infrared light receiving unit that can receive infrared light transmitted from an infrared remote controller or the like. In this case, an infrared code signal transmitted from an infrared remote controller or the like is transmitted to the first control unit 25 via the infrared light receiving unit. For example, if the light intensity up button, light intensity down button, light color up button, and light color down button are provided on the case of the infrared remote controller, each time the user presses one of the buttons, the infrared light Information on the light quantity or light color instructed by the user to be changed is sent to the first control unit 25 by the code signal. Therefore, for example, when the user presses the light amount down button, the first control unit 25 sets a first pattern indicating the light amount indicated by the user and a second pattern indicating the current light color.

  Then, the lighting fixture 3 is demonstrated. As shown in FIG. 1, the lighting fixture 3 includes a lighting power supply unit 31 and a signal generation unit 32. The lighting power supply unit 31 is electrically connected to the power lines 4 a and 4 b and supplies power to the lighting load 340 based on the AC voltage 51 transmitted through the switch unit 21. The signal generation unit 32 is also electrically connected to the power lines 4a and 4b, and the AC voltage 51 transmitted to the lighting fixture 3 via the switch unit 21 is also transmitted to the signal generation unit 32. In the present embodiment, the AC voltage 51 that has passed through the rectifier circuit 310 included in the lighting power supply unit 31 is transmitted to the signal generation unit 32. Therefore, the voltage transmitted to the signal generator 32 is a voltage after rectification.

  The signal generator 32 generates a control signal based on the pattern of the notches 53 that the AC voltage 51 (voltage after rectification) has. That is, the signal generation unit 32 generates a control signal using a portion of the control signal setting section in the waveform of the AC voltage 51. The control signal is a signal for controlling the power supply operation to the lighting load 340 by the lighting power supply unit 31.

  In the present embodiment, the lighting load 340 includes LEDs of a plurality of colors that emit light having different light colors as illumination elements. For example, 5000 Kelvin (cold color) LEDs and 2700 Kelvin (warm color) LEDs can be used as illumination elements. In the present embodiment, the lighting load 340 includes two-color LEDs. In this way, dimming toning control can be realized by using LEDs having different light colors.

  FIG. 4A and FIG. 4B show connection examples of the LED 341. As shown in FIGS. 4A and 4B, LEDs 341 of the same color may be electrically connected in series or may be electrically connected in parallel. Alternatively, the lighting load 340 may include one LED 341 for each light color. The multi-color LEDs 341 are preferably arranged evenly when viewed in plan. Thereby, since the light of each light color is mixed uniformly, it becomes possible to adjust the light quantity and light color of the light which generate | occur | produce from the lighting load 340 with high precision.

  Returning to FIG. In this embodiment, since the lighting element of the lighting load 340 is the LED 341, the lighting power supply unit 31 generates a constant current based on the AC voltage 51 transmitted via the switch unit 21. In this embodiment, since the commercial power supply 5 is used as a power supply, the lighting power supply unit 31 includes a rectifier circuit 310, a smoothing circuit 320, and constant current circuits 330 (corresponding to the LEDs 341 of the respective colors). A first constant current circuit 330a and a second constant current circuit 330b).

  The rectifier circuit 310 rectifies the AC voltage 51 transmitted via the switch unit 21. The rectifier circuit 310 is preferably a full-wave rectifier circuit. In this embodiment, the rectifier circuit 310 is a full-wave rectifier circuit. The smoothing circuit 320 smoothes the output of the rectifier circuit 310. FIG. 5 shows an example of the smoothing circuit 320. As shown in FIG. 5, the smoothing circuit 320 may include a diode 321 and an electrolytic capacitor 322.

  Returning to FIG. The AC voltage 51 transmitted through the switch unit 21 is converted into a DC voltage by the rectifier circuit 310 and the smoothing circuit 320. Each constant current circuit 330 generates a constant current based on the output (DC voltage) of the smoothing circuit 320. With this constant current, power is supplied to the lighting load 340 (LED 341).

  FIG. 6 is a diagram showing a part of an example of the constant current circuit 330, and shows a peripheral circuit configuration of the lighting load 340 (LED 341). As shown in FIG. 6, the constant current circuit 330 may include three resistors 331, 332, 333, an Nch MOSFET 334, a coil 335, a diode 336, an iron cored coil 337, and an electrolytic capacitor 338. Electrolytic capacitor 338 is charged by the output of smoothing circuit 320. The Nch MOSFET 334 is repeatedly turned on and off according to the signal from the signal generation unit 32, whereby the electrolytic capacitor 338 is repeatedly charged and discharged. As a result, a constant current flows through the LED 341 and the LED 341 emits light.

  The adjustment of the light amount and the light color of the light generated from the lighting load 340 is executed by controlling the current value of the constant current flowing through the LED 341 of each color. Therefore, the signal generation unit 32 generates a signal for controlling the ON time and the OFF time of the Nch MOSFET 334 as the control signal.

  FIG. 7 is a diagram illustrating an example of the signal generation unit 32, and FIG. 8 illustrates waveforms of signals generated in the respective units of the signal generation unit 32 illustrated in FIG. When controlling the ON time and OFF time of the Nch MOSFET 334 (an example of a switch element), the signal generation unit 32 may have a circuit configuration as shown in FIG. The signal generation unit 32 illustrated in FIG. 7 includes a waveform conversion circuit 70 and a second control unit 75. Note that, as shown in FIG. 7, the power supply voltage Vcc is supplied to the second control unit 75. The power supply voltage Vcc is generated by a power supply circuit (not shown) provided in the lighting fixture 3 similarly to the controller 2.

  The waveform conversion circuit 70 compares the output of the rectifier circuit 310 (voltage after rectification) with a threshold value to generate a pulse signal. The waveform conversion circuit 70 may include three resistors 71, 72, 73 and a bipolar transistor 74. The resistors 71 and 72 constitute a voltage dividing circuit that divides the rectified voltage. The output voltage of this voltage dividing circuit is applied to the base of the bipolar transistor 74.

  FIG. 8A shows an example of a waveform of the voltage 81 (output voltage of the voltage dividing circuit) applied to the base of the bipolar transistor 74. The output voltage 81 of the voltage dividing circuit includes a notch 53. The bipolar transistor 74 repeats turn-on and turn-off in accordance with the magnitude relationship between the base threshold value and the output voltage 81 of the voltage dividing circuit. As a result, a pulse signal 83 shown in FIG. 8B is generated at the connection point between the collector of the bipolar transistor 74 and the resistor 73. FIG. 8B shows an example of the pulse signal 83. The resistor 73 is a pull-up resistor.

  As shown in FIGS. 8A and 8B, in the vicinity of the position 82 corresponding to the zero cross point 52 of the AC voltage 51, the output voltage 81 of the voltage dividing circuit falls below the base threshold value, and the pulse signal 83 is at the L level. It becomes. Specifically, the pulse signal 83 includes two types of L levels having a width corresponding to the presence or absence of the notch 53. This is because, at the location where the notch 53 is formed, the time during which the output voltage 81 of the voltage dividing circuit falls below the base threshold is longer than at the location where the notch 53 is not formed. That is, the first L level 83a having the first width is generated at the portion where the notch 53 is not formed, and the second width longer than the first width is generated at the portion where the notch 53 is formed. The 2nd L level 83b which has is generated. The pulse signal 83 generated in this way is transmitted to the second control unit 75.

  The second control unit 75 is, for example, a microcomputer. A voltage is applied to the second control unit 75 from a connection point between the collector of the bipolar transistor 74 and the resistor 73. That is, the pulse signal 83 is transmitted to the second control unit 75. The second controller 75 generates a digital signal in accordance with two types of L levels (first L level 83a and second L level 83b) included in the pulse signal 83.

  Specifically, the second control unit 75 compares the pulse signal 83 with a threshold value to determine the L level width. Then, based on the width of the L level, the second control unit 75 determines whether the L level is the first L level 83a or the second L level 83b, and the value corresponding to the first L level 83a is “ A digital signal having a value “1” corresponding to the second L level 83b is generated. That is, the controller 2 (switch unit 21) controls the conduction of the AC voltage 51 so that the waveform of all or a part of the half wave of the AC voltage 51 included in the control signal setting section has the notch 53. A signal corresponding to 1-bit data in a half wave unit of the AC voltage 51 is transmitted to the lighting fixture 3. Here, the second control unit 75 compares the pulse signal 83 with a threshold value every several hundred microseconds, for example, and determines the L level width of the pulse signal 83. As described above, the pulse signal 83 is compared with the threshold value in detail, so that the influence of noise included in the pulse signal 83 can be suppressed.

  Preferably, the second control unit 75 obtains a ratio of widths of L levels adjacent in time until the second L level 83b is detected, and determines whether the L level is the first L level 83a or the second L level 83b. Determine if there is. That is, the value of the ratio of the width of a certain L level is the value of the ratio with respect to the width of the previous L level in time. Specifically, the second control unit 75 determines that the L level is the first L level 83a when the obtained ratio value of the L level width is a value within the defined first range. On the other hand, the second control unit 75 determines that the L level is the second L level 83b when the obtained ratio value of the L level width is a value within the prescribed second range. The first range is set narrower than the second range. Then, after the second L level 83b is detected, the second control unit 75 uses the L level before the second L level 83b as the value of the L level width ratio (until the first L level 83a is detected). A ratio value with respect to the width of the first L level 83a) is obtained. Note that the second control unit 75 may determine that the L level is the first L level 83a when the value of the ratio of the obtained L level width is “1”.

  When determining the ratio value of the width of the L level in this way, it is preferable that the controller 2 does not form the notch 53 in the waveform of the AC voltage 51 immediately after the power is turned on, but continuously to the pulse signal 83 a plurality of times. The first L level 83a is generated. In addition, after one control signal setting section is completed, the controller 2 does not form the notch 53 in the waveform of the AC voltage 51, and the first L level 83a is generated continuously several times with the pulse signal 83. To do.

  As described above, by obtaining the value of the ratio of the L level width, even if the L level width changes due to the temperature rise, the second control unit 75 generates the pulse signal 83 (pattern of the notch 53). Can be read. FIG. 9A shows an example of the waveform of the pulse signal 83 in the normal state. As shown in FIG. 9A, the width W1 of the first L level 83a and the width W2 of the second L level 83b are generally constant. On the other hand, as indicated by a two-dot chain line in FIG. 9B, the fall of the pulse signal 83 is slowed due to the temperature rise, and the width W1 of the first L level 83a and the width W2 of the second L level 83b change. There are things to do. Therefore, the width W1 of the first L level 83a and the width W2 of the second L level 83b determined by the second control unit 75 are respectively compared with fixed values, and whether the L level is the first L level 83a or the second L level 83b. When determining whether or not there is a change in the waveform width of the pulse signal 83 due to a temperature rise, the second controller 75 may not be able to read the pulse signal 83. On the other hand, even if the fall of the pulse signal 83 slows due to the temperature rise, the change in the width of each L level is approximately the same, and by determining the value of the ratio of the L level width, The pulse signal 83 can be read.

  When the second control unit 75 generates a digital signal, each of the constant current circuits 330 (the first constant current circuit 330a and the second constant current circuit 330b) included in each of the constant current circuits 330 based on the contents (data) of the digital signal. Signals (control signals) for controlling the ON time and OFF time of the Nch MOSFET 334 are generated. Specifically, the control signal is a pulse voltage, and the pulse width of the pulse voltage transmitted to each of the constant current circuits 330a and 330b is determined according to the contents of the digital signal. Therefore, the current value of the constant current flowing through the LED 341 included in each of the constant current circuits 330a and 330b is a value corresponding to the content of the digital signal, that is, a value corresponding to the pattern of the notch 53. The setting of the pulse width of the pulse voltage may be realized, for example, by storing a lookup table in the storage unit 75a of the second control unit 75.

  Next, the operation of the illumination system 1 when at least one of the light amount and the light color of the lighting load 340 is changed will be described with reference to FIGS. 10 to 12 show signal waveforms of respective parts of the illumination system 1.

  A sinusoidal AC voltage 51 shown in FIG. 10A is supplied from the commercial power supply 5 to the power lines 4a and 4b. When an instruction to change at least one of the light amount and the light color of the light generated from the lighting load 340 is input via the input unit 23, the first control unit 25 operates the switch unit 21 according to the change instruction. Control. Thereby, the switch part 21 controls conduction | electrical_connection of the alternating voltage 51 so that the waveform of the alternating voltage 51 may have the pattern of the notch 53 set in the control signal setting area. In addition, the first control unit 25 controls the operation of the switch unit 21 so that the AC voltage 51 continuously passes through the switch unit 21 in the sections other than the control signal setting section.

  In the present embodiment, the switch unit 21 controls the conduction of the AC voltage 51 so that the pattern of the notch 53 includes a first pattern indicating the amount of light and a second pattern indicating the light color. Specifically, the switch unit 21 controls the conduction of the AC voltage 51 so that the waveform of the AC voltage 51 has a plurality of first pattern cutouts 53, and then the waveform of the AC voltage 51 continues. Then, the conduction of the AC voltage 51 is controlled so as to have a plurality of notches 53 of the second pattern. Here, a case will be described in which the waveform of the AC voltage 51 is continuously cut out twice in the second pattern after being cut out twice in the first pattern.

  FIG. 10B shows an example of the waveform of the AC voltage 51 that has passed through the switch unit 21. When the switch unit 21 temporarily cuts off the AC voltage 51, a notch 53 is formed in the waveform of the AC voltage 51 as shown in FIG. Then, the AC voltage 51 having the notch 53 is transmitted to the rectifier circuit 310 of the lighting fixture 3.

  The rectifier circuit 310 rectifies the AC voltage 51 transmitted via the switch unit 21. FIG. 10C shows an example of the output of the rectifier circuit 310 (the voltage 81 after rectification). The smoothing circuit 320 smoothes the output of the rectifier circuit 310. FIG. 10D shows an example of the output of the smoothing circuit 320. As shown in FIG. 10 (d), the DC voltage 101 is obtained by the smoothing circuit 320. Therefore, the DC voltage 101 is supplied from the smoothing circuit 320 to each constant current circuit 330.

  On the other hand, the voltage 81 rectified by the rectifier circuit 310 is transmitted to the signal generator 32. The signal generation unit 32 changes the control signal for each color LED 341 based on the pattern of the notches 53 included in the voltage 81. In the present embodiment, the waveform conversion circuit 70 generates a pulse signal 83 (see FIG. 8) corresponding to the pattern of the notches 53. Then, the second control unit 75 generates a digital signal according to two types of L levels (first L level 83a and second L level 83b) included in the pulse signal 83. Specifically, as shown in FIG. 11, the second control unit 75 generates the first digital signal (light quantity data code 111) corresponding to the notch 53 of the first pattern twice in succession, and then the second A second digital signal (light color data code 112) corresponding to the pattern cutout 53 is generated twice in succession.

  The second control unit 75 determines whether the adjustment of the amount of light generated from the lighting load 340 is valid or invalid depending on whether the two light amount data codes 111 are the same. Similarly, the second control unit 75 determines whether the adjustment of the light color of the light generated from the lighting load 340 is valid / invalid depending on whether the two light color data codes 112 are the same. Then, the second control unit 75 generates a control signal corresponding to the determination result of the validity / invalidity of the light amount adjustment and the light color adjustment.

  Specifically, when the two light quantity data codes 111 are the same and the two light color data codes 112 are the same, the second control unit 75 is based on the light quantity data code 111 and the light color data code 112. A control signal (pulse voltage) for controlling the operation of each constant current circuit 330 is generated. That is, the second control unit 75 determines the pulse width of the pulse voltage transmitted to each constant current circuit 330 (the first constant current circuit 330a and the second constant current circuit 330b). Then, the second control unit 75 transmits each pulse voltage having the determined pulse width to the corresponding constant current circuit 330 until the controller 2 next forms the notch 53 in the waveform of the AC voltage 51. . Thereby, at least one of the control signals transmitted to each constant current circuit 330 is changed according to the pattern of the notches 53 included in the control signal setting section. This control signal is a signal for setting the light quantity and light color of the lighting load 340 to levels according to the light quantity data code 111 and the light color data code 112, respectively. The second control unit 75 stores the light amount data code 111 and the light color data code 112 in the storage unit 75a.

  On the other hand, if the two light quantity data codes 111 are the same, but the two light color data codes 112 do not match, the second control unit 75 stores the light quantity data code 111 generated this time and the storage unit 75a. The pulse width of the pulse voltage transmitted to each constant current circuit 330 is determined on the basis of the light color data code 112 that is present. Similarly, when the two light quantity data codes 111 do not match and the two light color data codes 112 match, the pulse width of the pulse voltage is determined. When the two light quantity data codes 111 and the two light color data codes 112 do not match, the second control unit 75 does not change the control signal.

  FIG. 12 shows an example of a digital signal generated by the signal generation unit 32 (second control unit 75) corresponding to the pattern of the notches 53 included in the control signal setting section. FIG. 12 is a diagram schematically showing a digital signal. The numerical values “0” and “1” included in each light quantity data code 111 and each light color data code 112 indicate the value of the digital signal. As shown in FIG. 12, in this embodiment, the light quantity data code 111 and the light color data code 112 each have 6 bits. That is, the switch unit 21 controls the conduction of the AC voltage 51 so that the waveform of all or a part of the 24 continuous half-waves of the AC voltage 51 has a notch 53, thereby causing the signal generation unit 32 to Each of the light quantity data code 111 and the light color data code 112 is generated twice. Thus, the interval between control signal settings is defined by the number of half waves of the AC voltage 51.

  Further, the first value of each light quantity data code 111 and each light color data code 112 is “1”. As a result, the second control unit 75 can reliably detect the heads of the light quantity data codes 111 and the light color data codes 112. Further, the controller 2 (first control unit 25) has a specification in which notches 53 are not formed in the waveforms of the five half-waves immediately after the activation of the controller 2 and immediately after the end of the control signal setting section of the half-wave of the AC voltage 51. It has become. The control unit 75 of the lighting fixture 3 transitions to the standby mode when the value of the digital signal becomes “0” continuously for 5 bits or more. The second control unit 75 that has transitioned to the standby mode determines that the control signal setting section has started when the value of the digital signal becomes “1”. That is, “0” continuous for 5 bits or more notifies the start of the control signal setting section.

  FIG. 13A shows an example of the control signal 121a transmitted to the first constant current circuit 330a, and FIG. 13B shows an example of the control signal 121b transmitted to the second constant current circuit 330b. As shown in FIGS. 13A and 13B, the control signals 121 a and 121 b are pulse voltages whose pulse widths are adjusted based on the pattern of the notches 53. In the example shown in FIGS. 13A and 13B, the pulse widths of the control signals 121a and 121b change at time t1. Due to the change in the pulse width, the light amount and the light color of the light generated from the lighting load 340 are adjusted to the light amount and the light color according to the change instruction input via the input unit 23.

  Specifically, the ratio of the current flowing through each color LED 341 is controlled by the control signals 121a and 121b, and the light color of the light (mixed light) generated from the lighting load 340 is adjusted. In addition, the total value of currents flowing through the LEDs 341 of the respective colors is controlled by the control signals 121a and 121b, and the amount of light (mixed light) generated from the lighting load 340 is adjusted. That is, the signal generation unit 32 controls the ratio of the current flowing through the two-color LEDs 341 and the total value of the currents flowing through the two-color LEDs 341 to execute the light adjustment and tonal control. In this manner, the signal generation unit 32 individually controls the power supplied to the LEDs 341 of each color, and changes the light amount and light color generated from the lighting load 340 to the light amount and light corresponding to the pattern of the notch 53. Make color.

  When the controller 2 is activated, the controller 2 (first control unit 25) sets the pattern of the notch 53 using the light amount and light color information stored in the storage unit 25a. And the controller 2 has the pattern of the notch 53 in which the waveform of the alternating voltage 51 is set, after at least 5 continuous half waves of the alternating voltage 51 pass through the switch part 21 as it is, without being notched. Thus, the operation of the switch unit 21 is controlled. The contents of the light amount and light color information used when the controller 2 is activated may be specified values, or values stored by the user in the storage unit 25a.

  In addition, the storage unit 25a stores information on the light amount and light color according to the time, and when the controller 2 is activated, the controller 2 uses the light amount and light color information corresponding to the current time to cut out. 53 patterns may be set. As a result, it is possible to generate light of the light amount and light color that matches the time. Furthermore, the controller 2 may set the pattern of the notch 53 using the light amount and light color information corresponding to the current time while the lighting fixture 3 is turned on. Thereby, the light quantity and the light color can be automatically changed according to the change of time.

  As described above, according to the present embodiment, a signal for setting the light amount and light color of the light generated from the lighting load 340 is sent from the controller 2 to the lighting fixture 3 via the power lines 4a and 4b. Therefore, it is possible to perform dimming and tonal control without installing a dedicated signal line.

  Furthermore, according to this embodiment, generation | occurrence | production of noise can be suppressed. For example, in the phase dimming method, the bidirectional thyristor may be turned on at the apex of the sine curve of the AC voltage, and there is a problem that a large noise (electromagnetic wave) is generated. In contrast, according to the present embodiment, among the half wave of the AC voltage 51, the bidirectional thyristor is within a range from the zero cross point 52 where the half wave starts to a position less than 90 degrees of the phase angle of the half wave. 6 turns on. Therefore, a large noise does not occur unlike the phase dimming method. Preferably, the bidirectional thyristor 6 is turned on within a range of 2.5 milliseconds from the zero cross point 52 where the half wave of the AC voltage 51 starts, so that the generation of noise can be further suppressed, and the lighting fixture Loss of power sent to 3 can be suppressed.

  Further, according to the present embodiment, the waveform of the AC voltage 51 has a pattern of notches 53 only in the control signal setting section, and the AC voltage 51 continues the switch unit 21 in the sections other than the control signal setting section. Pass through. Thereby, the loss of the electric power sent to the lighting fixture 3 can be suppressed.

  Note that the switch unit 21 may control the conduction of the AC voltage 51 so that the waveform of the AC voltage 51 has a pattern of notches 53 repeatedly at regular time intervals. Thereby, the possibility that the second control unit 75 causes a reading error is suppressed. The repetition interval of the pattern of the notch 53 is not limited to a constant time interval, and may be a variable time interval.

  In addition, a case has been described in which a digital signal that is “0” corresponding to the first L level 83a and “1” corresponding to the second L level 83b is generated, but “1” corresponding to the first L level 83a. Thus, a digital signal that becomes “0” corresponding to the second L level 83b may be generated.

  The number of bits of the light quantity data code 111 and the light color data code 112 is 6 bits, but the number of bits of the light quantity data code 111 and the light color data code 112 is the light quantity and light that can be set in the lighting fixture 3. There is no particular limitation as long as all levels of color can be shown. However, the smaller the number of bits, the greater the amount of power that can be sent to the luminaire 3, and the power supplied from the commercial power source 5 can be used effectively. Further, the smaller the number of bits, the faster the transmission speed of the light quantity and light color information to the lighting fixture 3.

  Further, the second control unit 75 transitions to the standby mode when the value of the digital signal becomes “0” continuously for 5 bits or more, but the value of the digital signal that causes the second control unit 75 to transition to the standby mode. Is not limited to “0” continuous for 5 bits or more. For example, a notch 53 having a specific pattern may be formed in the AC voltage 51 in order to notify the start of the control signal setting section.

  In addition, after the conduction of the AC voltage 51 is controlled so that the waveform of the AC voltage 51 has a plurality of first pattern cutouts 53, the waveform of the AC voltage 51 continuously has a plurality of second patterns. The continuity of the AC voltage 51 is controlled so as to have the notch 53, but the switch unit 21 causes the notch 53 of the first pattern and the notch 53 of the second pattern to each of the AC voltage 51 once each. You may form in a waveform.

  Next, another example of the drive signal 61 generated by the drive unit 22 of the controller 2 will be described with reference to FIGS. 14 and 15. As shown in FIGS. 14 (a) and 14 (b), when the drive signal 61 falls before the zero cross point 52 where the half wave of the AC voltage 51 ends, at the end of the half wave of the AC voltage 51, An unintended cutout 54 may occur. The notch 54 is generated when the bidirectional thyristor 6 is automatically turned off due to a sudden decrease in power at the end of the half wave of the AC voltage 51.

  When the notch 54 is generated, a third L level 83c is generated in the pulse signal 83 transmitted to the second control unit 75 (the control unit of the lighting fixture 3) as shown in FIG. 14 (c). Since the third L level 83c is wider than the first L level 83a, the second controller 75 can generate a digital signal having a value of “1” corresponding to the third L level 83c (notch 54). There is sex.

  Therefore, as shown in FIGS. 15A and 15B, the first control unit 25 (the control unit of the controller 2) has the AC voltage 51 while the switch unit 21 continuously passes the AC voltage 51. The drive unit 22 is controlled so that the drive signal 61 is continuously generated until the half wave to be formed with the notch 53 of the half wave. By doing so, the notch 54 is not formed in the AC voltage 51 as shown in FIG. 15A, and therefore the third L level 83c does not occur as shown in FIG. 15C. Therefore, the possibility that the second control unit 75 causes a reading error is suppressed.

  Then, the other structure of the lighting fixture 3 is demonstrated. FIG. 16 shows another configuration of the lighting fixture 3. As illustrated in FIG. 16, the lighting fixture 3 may further include a rectifier circuit 33 that rectifies the AC voltage 51 before being supplied to the lighting power supply unit 31 (rectifier circuit 310). In this case, unlike the luminaire 3 shown in FIG. 1, the signal generator 32 is supplied with the voltage rectified by the rectifier circuit 33. Therefore, the signal generation unit 32 generates the control signals 121a and 121b based on the pattern of the notch 53 included in the waveform of the voltage rectified by the rectifier circuit 33. As shown in FIG. 16, the rectifier circuit 33 may include diodes 161 and 162 connected to the power lines 4a and 4b, respectively. According to such a configuration, the signal generator 32 can detect the cutout 53 more reliably.

  Next, another configuration of the signal generation unit 32 will be described. FIG. 17 shows another configuration of the signal generation unit 32. As shown in FIG. 17A, an inverting circuit 76 may be provided at the subsequent stage of the waveform conversion circuit 70. As illustrated in FIG. 17B, the inverting circuit 76 may include a bipolar transistor 77 and a resistor 78. In this case, the pulse signal 83 is transmitted to the base of the bipolar transistor 77, and the inverted pulse signal 83 is transmitted to the second control unit 75 from the connection point between the collector of the bipolar transistor 77 and the resistor 78. Resistor 78 is a pull-up resistor. Hereinafter, the pulse signal 83 inverted by the inverting circuit 76 is referred to as an “inverted pulse signal 84”.

  The second control unit 75 compares the inverted pulse signal 84 with a threshold value to determine the H level width. Then, based on the width of the H level, the second control unit 75 determines whether the H level is an H level obtained by inverting the first L level 83a or an H level obtained by inverting the second L level 83b. judge. Then, the second control unit 75 has a value “0” corresponding to the H level obtained by inverting the first L level 83a, and a value “1” corresponding to the H level obtained by inverting the second L level 83b. To generate a digital signal.

  FIG. 18A shows an example of the pulse signal 83 in the normal state. As shown in FIG. 18A, the width W1 of the first L level 83a and the width W2 of the second L level 83b are generally constant. On the other hand, as indicated by a two-dot chain line in FIG. 18B, the fall of the pulse signal 83 is slowed due to the temperature rise, and the width W1 of the first L level 83a and the width W2 of the second L level 83b change. There are things to do. When the pulse signal 83 whose waveform has changed is transmitted to the second control unit 75, the width of the L level detected by the second control unit 75 changes in relation to the threshold value.

  FIG. 18C shows an example of the inversion pulse signal 84. As shown in FIGS. 18B and 18C, when the falling edge of the pulse signal 83 becomes dull, the rising edge of the inverted pulse signal 84 becomes dull. However, even if the inverted pulse signal 84 whose waveform has changed is transmitted to the second control unit 75, the width of the L level detected by the second control unit 75 is substantially constant or constant in relation to the threshold value.

  Therefore, by providing the inversion circuit 76, even if the waveform of the pulse signal 83 changes due to the temperature rise, the second control unit 75 obtains the ratio of the width of the H level included in the inversion pulse signal 84. The pattern of the notch 53 can be read.

(Embodiment 2)
Hereinafter, Embodiment 2 of the present invention will be described with reference to FIGS. FIG. 19 shows a schematic configuration of the illumination system 1 according to the second embodiment. As illustrated in FIG. 19, the lighting system 1 according to the second embodiment is different from the first embodiment in that the lighting system 1 includes a plurality of lighting fixtures 3a.

  FIG. 20 is a block diagram illustrating a main part of the lighting fixture 3a according to the second embodiment. The lighting fixture 3a differs from the lighting fixture 3 of Embodiment 1 by the point provided with the output terminals 35a and 35b. The output terminals 35a and 35b are electrically connected to the input terminals 34a and 34b via the wirings 42a and 42b.

  The input terminals 34a and 34b are electrically connected to the output terminal of the front controller 2 or the output terminals 35a and 35b of the front lighting fixture 3a via the feed lines 41a and 41b. One of the output terminals of the controller 2 is connected to the power line 4a via the switch unit 21, and the other output terminal of the controller 2 is connected to the power line 4b (see FIG. 1).

  Accordingly, in the lighting system 1 shown in FIG. 19, each lighting fixture 3 a is connected in parallel to the power lines 4 a and 4 b via the controller 2, and the light amount and the light color of the light generated from each lighting fixture 3 are changed. A signal to be set (a waveform of the AC voltage 51 having the pattern of the notch 53) is transmitted from the controller 2 to the respective lighting fixtures 3 through the feed lines 41a and 41b.

  As described above, according to the present embodiment, the light amount and the light color of light generated from the plurality of lighting fixtures 3a are collectively controlled by one controller 2 without laying a control signal line. be able to.

  As shown in FIG. 21, a unique address (destination) may be set for each lighting fixture 3a. The address can be set by, for example, a dip switch provided in each lighting fixture 3a. In this case, the controller 2 includes the pattern of the notch 53 indicating the address of the lighting fixture 3a to be controlled in the pattern of the notch 53. When the pattern of the notch 53 includes a pattern indicating the same address as its own address, the signal generation unit 32 of each of the plurality of lighting fixtures 3a controls the control signals 121a and 121b based on the pattern of the notch 53. Is generated. Thus, by setting a unique address for each lighting fixture 3a, it is possible to individually control the amount of light and the light color of the light generated from each lighting fixture 3a.

(Embodiment 3)
Hereinafter, Embodiment 3 of the present invention will be described with reference to FIGS. 22, 23, and 24. The third embodiment is different from the other embodiments in that the controller 2a does not include the display unit 24.

  FIG. 22 shows a schematic configuration of the illumination system 1 according to the third embodiment. As illustrated in FIG. 22, the lighting system 1 includes a plurality of lighting fixtures 3 a as in the second embodiment. FIG. 23 is an external view of a controller 2a according to the third embodiment.

  As shown in FIG. 23, the controller 2 a includes a single switch box type housing 200. The housing 200 is provided with a light amount up button 201, a light amount down button 202, a light color up button 203, a light color down button 204, a full light button 205, and a power on / off button 206 as the input unit 23.

  The 1st control part 25 (control part of controller 2a) controls operation of switch part 21 (refer to Drawing 1) according to operation of input part 23 by a user. That is, the turn-on of the bidirectional thyristor 6 (see FIG. 2) is controlled in accordance with the operation of the various buttons 201-206.

  For example, when the light amount up button 201 is pressed once, the first control unit 25 sets the pattern of the notch 53 that increases the light amount of light generated from each lighting fixture 3 a (lighting load 340) by one step to the AC voltage 51. The operation of the switch unit 21 is controlled as the waveform has.

  The first control unit 25 controls the operation of the switch unit 21 so that the light color of the light generated from each lighting fixture 3a is switched in the order of cold color, intermediate color, and warm color each time the all lamp button 205 is pressed. To do.

  For example, when the all-lamp button 205 is pressed once, the first control unit 25 exchanges the pattern of the notch 53 that changes the light color of the light generated from each lighting fixture 3a to a cold color with the highest light amount. The operation of the switch unit 21 is controlled so that the waveform of the voltage 51 has.

  When the all-lamp button 205 is pressed twice, the first control unit 25 exchanges the pattern of the notch 53 that changes the light color of the light generated from each lighting fixture 3a to an intermediate color in the state where the light amount is the highest. The operation of the switch unit 21 is controlled so that the waveform of the voltage 51 has.

  In addition, when the all-lamp button 205 is pressed three times, the first control unit 25 exchanges the pattern of the notches 53 that changes the light color of the light generated from each lighting fixture 3a to a warm color with the highest light amount. The operation of the switch unit 21 is controlled so that the waveform of the voltage 51 has.

  The power on / off button 206 (main power button) is a button for instructing start and stop of the controller 2. That is, when the power on / off button 206 is pressed in a state where each lighting fixture 3a is turned off, the first control unit 25 displays the light amount and light color information stored in the storage unit 25a (see FIG. 1). Use this to set the pattern of the notches 53. On the other hand, when the power on / off button 206 is pressed while each lighting fixture 3a is lit, the first control unit 25 causes the drive unit 22 to generate a drive signal 61 that turns off the bidirectional thyristor 6. Thus, the AC voltage 51 is prevented from conducting the switch unit 21.

  Further, the first control unit 25 is configured to set the light amount and the light color by pressing at least one of the light amount up button 201, the light amount down button 202, the light color up button 203, and the light color down button 204. When the all-lamp button 205 is pressed for a predetermined time or longer, information on the light amount and the light color is stored in the storage unit 25a. Then, the first control unit 25 stores the light amount button 205, the light amount down button 202, the light color up button 203, and the light color down button 204 when the all lamp button 205 is pressed for a predetermined time or more before being pressed. The pattern of the notch 53 is set according to the information on the light amount and the light color stored in the unit 25a.

  Next, another example of the controller 2a will be described. FIG. 24 is an external view of another example of the controller 2a. Specifically, FIG. 24A is a front view of another example of the controller 2a, and FIG. 24B is a side view of another example of the controller 2a.

  Similarly to the controller 2a shown in FIG. 23, the controller 2a shown in FIG. 24 includes a switch box type housing 200a for one piece. The casing 200 a is provided with a first dial 207 and a second dial 208 as the input unit 23. Here, the first dial 207 is used for adjusting the amount of light, and the second dial 208 is used for adjusting the light color. Furthermore, the first dial 207 has a built-in push switch for turning on each lighting fixture 3a (lighting load 340).

  The first control unit 25 (the control unit of the controller 2a) controls the operation of the switch unit 21 (see FIG. 1) according to the operation of the first dial 207 and the second dial 208 by the user. That is, the turn-on of the bidirectional thyristor 6 (see FIG. 2) is controlled according to the operation of the first dial 207 and the second dial 208.

  Specifically, when the user rotates the first dial 207 in the direction of the arrow shown in FIG. 24A, a light amount of light corresponding to the rotational position of the first dial 207 is generated from each lighting fixture 3a. The first control unit 25 controls the operation of the switch unit 21.

  In addition, when the user rotates the second dial 208 in the direction of the arrow shown in FIG. 24A, light of the light color corresponding to the rotation position of the second dial 208 is generated from each lighting fixture 3a. 1 The control unit 25 controls the operation of the switch unit 21.

  Also, when the user presses the first dial 207 in the direction of the arrow shown in FIG. 24B, the first control unit 25 controls the operation of the switch unit 21 so that each lighting fixture 3a is in the full lighting state. .

  As with the controller 2a shown in FIG. 23, each time the first dial 207 is pressed, the first control is performed so that the light color of the light generated from each lighting fixture 3a is switched in the order of cold, intermediate, and warm. The unit 25 may control the operation of the switch unit 21. In addition, the first dial 207 is used for adjusting the light amount, and the second dial 208 is used for adjusting the light color. However, the first dial 207 is used for adjusting the light color, and the second dial 207 is used for adjusting the light color. The dial 208 may be used for adjusting the amount of light.

  According to the present embodiment, the single controller 2 can collectively control the light amount and the light color of the light generated from the plurality of lighting fixtures 3a. A switch box type can be used. Therefore, the controller 2 can be made compact.

  In addition, by operating one button (all lamp button 205), the information on the light amount and light color desired by the user is stored as the light amount and light color of the light generated from each lighting fixture 3a, and the user Can reproduce the light quantity and light color desired.

(Embodiment 4)
Hereinafter, Embodiment 4 of the present invention will be described with reference to FIGS. The fourth embodiment is different from the other embodiments in that the lighting system 1 includes a lighting system group of three systems 300a, 300b, and 300c.

  FIG. 25 shows a schematic configuration of the illumination system 1 according to the fourth embodiment. As shown in FIG. 25, the illumination system 1 includes a group of three fixtures 300a, 300b, and 300c. Each group of lighting fixtures 300a, 300b, 300c includes a plurality of lighting fixtures 3a. Specifically, in the lighting system 1 shown in FIG. 25, each lighting fixture 3a is connected in parallel to the power lines 4a and 4b via the controller 2b. The controller 2b is connected to each of the systems 300a, 300b, and 300c. The lighting fixture group can be controlled collectively.

  FIG. 26 is a block diagram illustrating a main part of the controller 2b according to the fourth embodiment. The controller 2b is different from the controller 2 of the first embodiment in that it includes three switch units 21a, 21b, 21c, three drive units 22a, 22b, 22c, and four output terminals 28a, 28b, 28c, 28d.

  The first output terminal 28a is electrically connected to the input terminal 27a to which the power line 4a is connected via the wiring 29a. The first switch portion 21a is interposed in the wiring 29a. The 1st switch part 21a is used for control of the light quantity and light color of the light which generate | occur | produce from each lighting fixture 3a included in the 1st system | strain 300a. The first control unit 25 controls the operation of the first switch unit 21a via the first drive unit 22a. The second output terminal 28b is electrically connected to the input terminal 27b to which the power line 4b is connected via the wiring 29b.

  The third output terminal 28c is electrically connected to the input terminal 27a via the wiring 29c and the wiring 29a. A second switch portion 21b is interposed in the wiring 29c. The 2nd switch part 21b is used for control of the light quantity and light color of the light which generate | occur | produce from each lighting fixture 3a contained in the 2nd system | strain 300b. The first control unit 25 controls the operation of the second switch unit 21b via the second drive unit 22b.

  The fourth output terminal 28d is electrically connected to the input terminal 27a via the wiring 29d and the wiring 29a. A third switch portion 21c is interposed in the wiring 29d. The 3rd switch part 21c is used for control of the light quantity and light color of the light which generate | occur | produce from each lighting fixture 3a contained in the 3rd system | strain 300c. The first control unit 25 controls the operation of the third switch unit 21c via the third drive unit 22c.

  FIG. 27 is an external view of the controller 2b according to the fourth embodiment, and shows a state where the cover 211 is opened. As shown in FIG. 27, the controller 2b includes a housing 210 and a cover portion 211. The cover part 211 is rotatably supported by the housing 210. The cover portion 211 can be omitted.

  The casing 210 includes, as the input unit 23, a selection button 212, a determination button 213, an up button 214, a down button 215, a power on / off button 216, a first storage button 217, a second storage button 218, a third storage button 219, A good night button 220 and a wake up button 221 are provided.

  The first control unit 25 controls the operation of the switch units 21a, 21b, and 21c according to the operation of the input unit 23 by the user. That is, the turn-on of the bidirectional thyristor 6 (see FIG. 2) included in each switch unit 21a, 21b, 21c is controlled in accordance with the operation of various buttons 212-221.

  When the cover unit 211 is opened, the first control unit 25 causes the display of the display unit 24 to display the current light amount and light color of the light generated from the lighting fixtures of the respective systems 300a, 300b, and 300c, as shown in FIG. A screen showing (the lighting state of each system 300a, 300b, 300c) is displayed. Specifically, “lighting 1” indicates a group of lighting fixtures of the first system 300a. The scale above “Illumination 1” indicates the amount of light and the color of the light generated from each lighting fixture 3a included in the first system 300a. Similarly, “illumination 2” indicates a group of lighting fixtures of the second system 300b, and the scale above “lighting 2” indicates the amount of light and the color of light generated from each lighting fixture 3a included in the second system 300b. Show. “Lighting 3” indicates a group of lighting fixtures of the third system 300c, and the scale above “Lighting 3” indicates the amount of light and the color of light generated from each lighting fixture 3a included in the third system 300c. . FIG. 27 shows an example of a screen showing the lighting states of the systems 300a, 300b, and 300c in “Scene 1”.

  Hereinafter, an example of a method for operating the input unit 23 by the user will be described. First, when the user presses the selection button 212, a function selection screen is displayed. The function selection screen includes items of “scene 1”, “scene 2”, “scene 3”, “wake-up time”, and “lighting selection”. After the function selection screen is displayed, each time the user presses the selection button 212, the items are selected in a predetermined order.

  When updating the lighting state of each of the systems 300a, 300b, and 300c in “scene 1”, the user presses the enter button 213 when “scene 1” is selected. Thereby, the screen shown in FIG. 27 is displayed on the display of the display unit 24.

  Next, the user presses the selection button 212. Each time the selection button 212 is pressed, “illumination 1”, “illumination 2”, and “illumination 3” are repeatedly selected in this order. The user presses the determination button 213 when a system for adjusting the light amount and the light color or one of them is selected. Thereby, first, the level of the light quantity of the selected system can be selected.

  Next, the user presses the up button 214 or the down button 215. At this time, each time the up button 214 or the down button 215 is pressed, the position (light quantity level) displayed in reverse on the scale of the light quantity of the selected system changes. The user presses the enter button 213 when a desired light amount level is selected. Thereby, the light level of the selected system is set, and the light color level of the selected system can be selected.

  Next, the user presses the up button 214 or the down button 215. At this time, each time the up button 214 or the down button 215 is pressed, the highlighted position (light color level) changes on the light color scale of the selected system. The user presses the enter button 213 when the desired light color level is selected. As a result, the light color level of the selected system is set, and “Register” is selected on the display of the display unit 24.

  The user operates the selection button 212 again when adjusting the lighting state of another system. Each time the selection button 212 is pressed, “illumination 1”, “illumination 2”, and “illumination 3” are repeatedly selected in this order.

  When the user presses the enter button 213 when “Register” is selected on the display of the display unit 24, the lighting state of each system 300a, 300b, 300c in “Scene 1” is updated. That is, the set light amount and light color information is associated with the first storage button 217 and stored in the storage unit 25a.

  When reproducing the set lighting state of “scene 1”, the user presses the first storage button 217. When the first memory button 217 is pressed, the first control unit 25 switches to each of the systems 300a, 300b, and 300c using information stored in the storage unit 25a in association with the first memory button 217. A pattern of notches 53 is set.

  In addition, when “Scene 1” is currently selected, the lighting state of each system 300a, 300b, 300c in “Scene 1” is updated and generated from the luminaire group of each system 300a, 300b, 300c. The current amount of light and the light color are adjusted. That is, the first control unit 25 controls the operations of the switch units 21a, 21b, and 21c so that the waveform of the AC voltage 51 has the pattern of the notch 53 corresponding to the light amount and light color set by the user.

  When setting the “sleep timer function”, the user presses the enter button 213 when “lighting selection” is selected on the function selection screen. As a result, a screen on which the “sleep timer function” or “wake-up timer function” can be set for each of the systems 300a, 300b, and 300c is displayed on the display of the display unit 24.

  First, the user operates the selection button 212 to select a system (“lighting 1”, “lighting 2”, “lighting 3”) for which the “sleep timer function” or “wake-up timer function” is desired to be set. Then, the enter button 213 is pressed. This makes it possible to set the “sleep timer function” or the “wake-up timer function” for a desired system.

  Next, the user presses the up button 214 or the down button 215, selects “good night timer function”, and then presses the enter button 213. As a result, a “sleep timer setting screen” is displayed on the display of the display unit 24. In the “sleep timer setting screen”, a plurality of candidates for the time until the selected system is completely turned off are displayed.

  Next, the user operates the good night button 220 to select a time until the selected system is completely extinguished from a plurality of candidates. Thereby, the light emitted from each lighting fixture 3a of the selected system gradually reduces the light amount while the selected time elapses, and is completely turned off when the selected time elapses. During this time, the light color also changes in accordance with the change in the amount of light. This change in the amount of light and the light color can be realized by sending a waveform of the AC voltage 51 having a predetermined pattern of the notch 53 to each lighting fixture 3a of the selected system as time passes.

  When setting the “wake-up timer function”, the user presses the enter button 213 when “lighting selection” is selected on the function selection screen. As a result, a screen on which the “sleep timer function” or “wake-up timer function” can be set for each of the systems 300a, 300b, and 300c is displayed on the display of the display unit 24.

  First, the user operates the selection button 212 to select a system (“lighting 1”, “lighting 2”, “lighting 3”) for which the “sleep timer function” or “wake-up timer function” is desired to be set. Then, the enter button 213 is pressed. This makes it possible to set the “sleep timer function” or the “wake-up timer function” for a desired system.

  Next, the user presses the up button 214 or the down button 215 to select “wake-up timer function”, and then presses the decision button 213. As a result, the “wake-up time setting screen” is displayed on the display of the display unit 24.

  Next, the user presses the up button 214 or the down button 215 and first selects “hour”, and then presses and holds the up button 214 or the down button 215 to determine “hour”. Next, the user operates the up button 214 or the down button 215 to select “minutes”, and then long presses the up button 214 or the down button 215 to determine “minutes”. Thereby, “wake-up timer time” is set.

  When the “wake-up timer function” is activated, the user presses the wake-up button 221. Thereby, the light quantity of the light emitted from each lighting fixture 3a of the selected system gradually increases from a predetermined time before the set time. When the set time comes, each lighting fixture 3a of the selected system is completely lit. During this time, the light color also changes in accordance with the change in the amount of light. This change in the light amount and the light color can be realized by sending an AC voltage waveform having a predetermined pattern of the notch 53 to each lighting fixture 3a of the selected system as time passes.

  The power on / off button 216 (main power button) is a button for instructing activation and stop of the controller 2b. That is, when the power on / off button 216 is pressed in a state where each lighting fixture 3a is turned off, the controller 2b is activated. After the controller 2b is activated, the user presses any one of the memory button 217 to the memory button 219. The first control unit 25 sets the pattern of the notch 53 using the light quantity and light color information stored in the storage unit 25a (see FIG. 1) in association with the pressed storage button. On the other hand, when the power on / off button 216 is pressed while the lighting fixtures 3a are lit, the first control unit 25 causes the driving units 22a to 22c to drive the driving signal 61 to turn off the bidirectional thyristor 6. To prevent the AC voltage 51 from conducting the switch parts 21a to 21c.

  The number of lighting fixtures 3a included in the lighting fixture groups of each system 300a, 300b, 300c is not limited to a plurality, and each lighting fixture group of each system 300a, 300b, 300c has one or more lighting fixtures. An instrument 3a can be included.

(Embodiment 5)
The fifth embodiment of the present invention will be described below with reference to FIG. The fifth embodiment differs from the other embodiments in that the function of the controller 2 is provided in the lighting fixture 3b.

  FIG. 28 is a block diagram illustrating a main part of the lighting fixture 3b according to the fifth embodiment. As shown in FIG. 28, the lighting fixture 3b includes a switch unit 21, a drive unit 22, an input unit 23, and a zero-cross detection unit 26 in order to realize two functions.

  In the luminaire 3b, the control unit 75 configures the signal generation unit 32 together with the waveform conversion circuit 70, as in the first embodiment. Further, the control unit 75 includes the function of the control unit 25 (see FIG. 1) of the controller 2. The input unit 23 is an infrared light receiving unit.

  The lighting fixture 3b includes output terminals 35a and 35b. The output terminals 35a and 35b are electrically connected to the input terminals 34a and 34b via the wirings 42a and 42b. Therefore, as described in the second embodiment, at least one other lighting fixture 3a can be electrically connected to the power lines 4a and 4b via the lighting fixture 3b. Accordingly, it is possible to collectively control a group of lighting fixtures (including the lighting fixture 3b) by the controller function of the lighting fixture 3b without laying a control signal line.

  According to the fifth embodiment, as in the other embodiments, at least one of the light amount and the light color of the lighting load 340 can be changed in accordance with a change instruction from the user via the input unit 23.

(Embodiment 6)
Embodiment 6 of the present invention will be described below with reference to FIG. The sixth embodiment is different from the other embodiments in that the tilt angle of the lamp body 301 of the lighting fixture 3c can be adjusted. FIG. 29 is an external view of a lighting fixture 3c according to the sixth embodiment.

  The lighting fixture 3c is stage lighting, for example. The luminaire 3c includes a lamp body 301 and a support 303 that rotatably supports the lamp body 301. A drive motor 37 is built in the support 303, and the lamp body 301 rotates when the drive motor 37 operates. Therefore, when the drive motor 37 is operated, the direction of the light emission surface 302 (light irradiation direction) changes.

  Further, the lighting fixture 3 c includes a motor power supply unit 36. The motor power supply unit 36 supplies power to the drive motor 37 based on the AC voltage 51 transmitted via the switch unit 21.

  An address (destination) is set for the drive motor 37. The address can be set by a dip switch, for example. When the pattern of the notch 53 includes a pattern indicating the same address as the address of the drive motor 37, the signal generation unit 32 applies the motor power supply unit 36 to the drive motor 37 based on the pattern of the notch 53. A control signal for controlling the power supply operation is generated.

  For example, when the drive motor 37 is a stepping motor, the pattern of the notch 53 indicates the rotation angle of the stepping motor. The motor power supply unit 36 includes a plurality of switch elements. The signal generator 32 generates a control signal for driving each of the plurality of switch elements of the motor power supply unit 36 based on the pattern of the notches 53. The motor power supply unit 36 supplies power pulses for rotating the stepping motor by the rotation angle indicated by the pattern of the notches 53 to the stepping motor by the operation of the plurality of switching elements. Thereby, the direction (light irradiation direction) of the light emission surface 302 can be changed.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made to the above embodiments.

  For example, in the above embodiments, the controllers 2, 2a to 2c are four-wire controllers, but the controllers 2, 2a to 2c may be two-wire controllers.

  In each of the above embodiments, power is supplied from the commercial power supply 5, but the external power supply that supplies power to the power lines 4 a and 4 b is not limited to the commercial power supply 5, and may be a private generator or the like. . The external power source is not limited to an AC power source, and may be a DC power source. In this case, the switch units 21 and 21a to 21c control the conduction of the DC voltage so that the waveform of the DC voltage has a set notch pattern. Here, the notch pattern includes two types of notches having different widths. Generation of noise can be suppressed by using a power supply that supplies a voltage lower than the voltage at the peak of the sine curve of the commercial power supply 5 as the DC power supply.

  Further, in each of the above embodiments, the lighting load 340 includes the two-color LEDs 341 that emit light having different light colors as the lighting elements, but the lighting load 340 may include only one-color LED 341. In this case, only dimming control is performed.

  In each of the above embodiments, the illumination element is the LED 341. However, the illumination element is not limited to the LED 341, and may be, for example, an organic EL element or an incandescent bulb.

  The present application further discloses the following supplementary notes. Note that the following supplementary notes do not limit the present invention.

(Appendix 1)
A lighting control device connected via an electric power line to an external power supply for supplying voltage;
A lighting system comprising a lighting fixture connected to the power line via the lighting control device,
The illumination control device includes a switch unit that controls conduction of the voltage so that the waveform of the voltage has a set notch pattern in a control signal setting section.
The lighting fixture is:
A lighting power supply unit that supplies power to the lighting load based on the voltage transmitted through the switch unit;
And a signal generation unit configured to generate a control signal for controlling the operation of the lighting power supply unit based on the notch pattern.

(Appendix 2)
The lighting load includes illumination elements of a plurality of colors that emit light having different light colors, and the light emitted from each of the illumination elements of the plurality of colors is mixed to generate an arbitrary light color from the illumination fixture. The illumination system according to appendix 1, wherein light is emitted.

(Appendix 3)
The illumination system according to appendix 2, wherein the illumination elements of the plurality of colors are arranged uniformly.

(Appendix 4)
The illumination system according to appendix 2 or 3, wherein a ratio of currents flowing through the illumination elements of the plurality of colors is controlled by the control signal, and a light color of light generated from the lighting load is adjusted.

(Appendix 5)
The lighting system according to any one of appendices 2 to 4, wherein a total value of currents flowing through the lighting elements of the plurality of colors is controlled by the control signal to adjust an amount of light generated from the lighting load. .

(Appendix 6)
The notch pattern includes a first pattern indicating the amount of light and a second pattern indicating the light color,
The signal generation unit generates a first digital signal corresponding to the cutout of the first pattern and a second digital signal corresponding to the cutout of the second pattern, and the first digital signal and the second digital signal are generated. The illumination system according to any one of appendices 2 to 5, wherein the control signal is generated based on a digital signal.

(Appendix 7)
The switch unit controls the conduction of the voltage so that the waveform of the voltage has a plurality of cutouts of the first pattern continuously;
The signal generator generates the first digital signal a plurality of times in succession, and determines whether the light amount generated from the lighting load is valid or invalid according to whether or not they are the same signal. Then, the illumination system according to appendix 6, wherein the control signal is generated according to the determination result.

(Appendix 8)
The switch unit controls conduction of the voltage so that a waveform of the voltage has a plurality of cutouts of the second pattern in succession,
The signal generation unit continuously generates the second digital signal a plurality of times, and determines whether the light color of the light generated from the lighting load is adjusted according to whether or not they are the same signal. The lighting system according to appendix 6 or 7, wherein the control signal is generated according to the determination result.

(Appendix 9)
The lighting control device includes a single switch box type housing, a light amount up button, a light amount down button, a light color up button, a light color down button, a full light button, and a power on / off button provided in the housing An illumination system according to any one of appendices 2 to 8, comprising:

(Appendix 10)
The illumination system according to appendix 9, wherein the illumination control device further includes a storage unit that stores information on a light amount and a light color set when the all-lamp button is pressed for a predetermined time or more.

(Appendix 11)
If the all-light button is pressed for a predetermined time or more before the light amount up button, the light amount down button, the light color up button, and the light color down button are pressed, the light amount and light stored in the storage unit The illumination system according to appendix 10, wherein the notch pattern is set according to color information.

(Appendix 12)
The lighting system according to any one of appendices 9 to 11, wherein a light color of light generated from the lighting load is switched in the order of cold color, intermediate color, and warm color each time the all-lamp button is pressed.

(Appendix 13)
A plurality of the lighting fixtures are provided,
The lighting system according to any one of appendices 1 to 12, wherein the plurality of lighting fixtures are connected in parallel to the power line.

(Appendix 14)
A plurality of the lighting fixtures are provided,
The plurality of lighting fixtures are connected in parallel to the power line, and an address is set for each of the plurality of lighting fixtures,
The signal generation unit of each of the plurality of lighting fixtures generates the control signal based on the notch pattern when the notch pattern includes a pattern indicating the same address as its own address. The illumination system according to any one of appendices 1 to 8.

(Appendix 15)
The lighting fixture is:
A drive motor for changing the direction of the light exit surface of the luminaire;
A motor power supply unit that supplies power to the drive motor based on the voltage transmitted through the switch unit;
An address is set for the drive motor,
The signal generation unit, when the notch pattern includes a pattern indicating the same address as the address of the drive motor, a control signal for controlling the operation of the motor power supply unit based on the notch pattern The lighting system according to any one of appendices 1 to 8, 13 or 14, wherein the direction of the light emission surface of the lighting fixture is changed.

(Appendix 16)
The lighting system according to any one of appendices 1 to 15, wherein the switch unit controls conduction of the voltage so that a waveform of the voltage repeatedly has the notch pattern.

(Appendix 17)
The lighting system according to any one of appendices 1 to 16, wherein the switch unit includes a semiconductor switch.

(Appendix 18)
AC voltage is supplied from the external power source,
The lighting power supply unit
A rectifier circuit for rectifying the AC voltage transmitted through the switch unit;
A smoothing circuit for smoothing the output of the rectifier circuit,
The lighting system according to any one of appendices 1 to 17, wherein the signal generation unit generates the control signal based on the notch pattern of the voltage after rectification by the rectifier circuit.

(Appendix 19)
AC voltage is supplied from the external power source,
The lighting fixture further includes a rectifier circuit that rectifies the AC voltage before being supplied to the lighting power supply unit,
The lighting system according to any one of appendices 1 to 17, wherein the signal generation unit generates the control signal based on the notch pattern of the voltage after rectification by the rectifier circuit.

(Appendix 20)
The signal generator is
A waveform conversion circuit that compares the voltage after rectification with a threshold value and generates a pulse signal including two types of L levels having a width corresponding to the presence or absence of the notch;
The lighting system according to appendix 18 or 19, including a second control unit that generates the control signal based on the two types of L levels.

(Appendix 21)
The two types of L levels include a first L level having a first width and a second L level having a second width longer than the first width,
The second control unit determines whether the L level of the pulse signal is the first L level or the second L level based on a ratio of the L level width of the pulse signal. The lighting system described.

(Appendix 22)
The illumination system according to appendix 20, wherein the signal generation unit further includes an inverting circuit provided at a subsequent stage of the waveform conversion circuit.

(Appendix 23)
The lighting system according to any one of appendices 18 to 22, wherein the switch unit allows the AC voltage to pass continuously in a section other than the control signal setting section.

(Appendix 24)
The illumination control device further includes a zero-cross detector that detects a zero-cross of the AC voltage,
The lighting system according to any one of appendices 18 to 23, wherein the switch unit controls conduction of the AC voltage based on a detection result of the zero-cross detection unit.

(Appendix 25)
In the half-wave of the AC voltage, the switch unit conducts the AC voltage so that the waveform of the half-wave is cut out from the zero cross where the half-wave starts to a position less than 90 degrees of the phase angle of the half-wave. The illumination system according to appendix 24, which is controlled.

(Appendix 26)
The illumination system according to appendix 25, wherein the switch unit controls conduction of the alternating voltage so that a waveform of the half wave is cut out to a position within 2.5 milliseconds from the zero cross where the half wave starts.

(Appendix 27)
The illumination control device further includes a drive unit that generates a drive signal for the switch unit,
The drive unit is configured such that, while the switch unit continuously passes the AC voltage, for each half wave of the AC voltage, the drive signal extends from the zero cross where the half wave starts to just before the zero cross where the half wave ends. 27. The lighting system according to any one of appendices 24-26.

(Appendix 28)
The illumination control device further includes a drive unit that generates a drive signal for the switch unit,
The drive unit continues the drive signal until the half wave of the target to form the notch in the half wave of the AC voltage while the switch unit continuously passes the AC voltage. The illumination system according to any one of appendices 24-26, which is generated.

(Appendix 29)
29. The illumination system according to appendix 27 or 28, wherein the drive unit starts generating the drive signal at a timing delayed from the zero cross at which a half wave to be formed with the notch starts.

(Appendix 30)
Based on the voltage transmitted through the switch unit that controls the conduction of the voltage so that the waveform of the voltage supplied from the external power supply has a set notch pattern in the control signal setting section. A lighting power supply unit for supplying power to the load;
A lighting apparatus comprising: a signal generation unit configured to generate a control signal for controlling an operation of the lighting power supply unit based on the notch pattern.

DESCRIPTION OF SYMBOLS 1 Lighting system 2, 2a-2c Controller 3, 3a-3c Lighting fixture 5 Commercial power supply 6 Bidirectional thyristor 21, 21a-21c Switch part 22, 22a-22c Drive part 25 1st control part 26 Zero cross detection part 31 Lighting power supply Unit 32 signal generation unit 36 motor power supply unit 37 drive motor 301 lamp body 302 light emission surface 310 rectifier circuit 320 smoothing circuit 330 constant current circuit 340 lighting load 341 LED

Claims (10)

A lighting control device connected via an electric power line to an external power supply for supplying voltage;
A lighting fixture that is connected to the power line via the lighting control device and supplies power to a lighting load that includes lighting elements of a plurality of colors that emit light of different light colors, and the lighting elements of the plurality of colors A light system in which light emitted from each light is mixed and light of an arbitrary light color is emitted from the lighting fixture,
The illumination control device includes a switch unit that controls conduction of the voltage so as to change a part of the waveform of the voltage.
The lighting fixture is:
Based on the voltage transmitted through the switch unit, a lighting power supply unit that supplies power to the lighting load;
A signal generation unit that generates a control signal for controlling the operation of the lighting power supply unit based on the waveform of the voltage transmitted through the switch unit;
The signal generation unit generates a first digital signal indicating a light amount and a second digital signal indicating a light color based on the waveform of the voltage transmitted through the switch unit, and the first digital signal And generating the control signal based on the second digital signal ,
The signal generating unit generates a pulse signal based on the waveform of the voltage transmitted through the switch unit, and generates the first digital signal and the second digital signal based on the pulse signal. ,
The pulse signal has a plurality of pulses including a first pulse indicating a first pulse width and a second pulse indicating a second pulse width;
The first pulse width and the second pulse width have a width according to the presence or absence of a partial change in the waveform of the voltage,
The second pulse width is larger than the first pulse width,
The signal generation unit generates the first digital signal and the second digital signal based on the pulse signal, and generates the pulse based on a ratio between the first pulse width and the second pulse width. An illumination system for determining whether a pulse of a signal is the first pulse or the second pulse .   The lighting system according to claim 1, wherein a ratio of a current flowing through the lighting elements of the plurality of colors is controlled by the control signal to adjust a light color of light generated from the lighting load.   The lighting system according to claim 1 or 2, wherein a total value of currents flowing through the lighting elements of the plurality of colors is controlled by the control signal, and an amount of light generated from the lighting load is adjusted. A plurality of the lighting fixtures are provided,
The lighting system according to claim 1, wherein the plurality of lighting fixtures are connected in parallel to the power line. A plurality of the lighting fixtures are provided,
The plurality of lighting fixtures are connected in parallel to the power line, and an address is set for each of the plurality of lighting fixtures,
The signal generation unit of each of the plurality of lighting fixtures generates the control signal when the waveform of the voltage transmitted through the switch unit indicates its own address. The lighting system according to any one of claims.   The lighting system according to any one of claims 1 to 5, wherein the switch unit controls conduction of the voltage so that a waveform of the voltage repeats the same change.   The lighting system according to claim 1, wherein the switch unit includes a semiconductor switch. AC voltage is supplied from the external power source,
The lighting power supply unit
A rectifier circuit for rectifying the AC voltage transmitted through the switch unit;
A smoothing circuit for smoothing the output of the rectifier circuit,
The lighting system according to claim 1, wherein the signal generation unit generates the control signal based on a waveform of a voltage after rectification by the rectifier circuit. The illumination control device includes a light amount up button, a light amount down button, a light color up button, and a light color down button,
The switch part is
When the light amount up button or the light amount down button is pressed once, the voltage operates so that the voltage has a waveform that increases or decreases the light amount of light generated from the lighting fixture by one step,
When the light color up button or the light color down button is pressed once, the voltage operates such that the voltage has a waveform that changes the light color of the light generated from the lighting fixture to the warm color side or the cold color side in one step. The illumination system according to any one of claims 1 to 8 . By supplying power to a lighting load including a plurality of illumination elements that emit light of different light colors, the light emitted from each of the illumination elements of the plurality of colors is mixed, and an arbitrary light color is obtained. A lighting fixture that emits light,
A lighting power supply unit that supplies power to the lighting load based on the voltage transmitted through the switch unit that controls conduction of the voltage so that a part of a waveform of a voltage supplied from an external power supply changes. When,
A signal generation unit that generates a control signal for controlling the operation of the lighting power supply unit based on the waveform of the voltage transmitted through the switch unit;
The signal generation unit generates a first digital signal indicating a light amount and a second digital signal indicating a light color based on the waveform of the voltage transmitted through the switch unit, and the first digital signal And generating the control signal based on the second digital signal ,
The signal generating unit generates a pulse signal based on the waveform of the voltage transmitted through the switch unit, and generates the first digital signal and the second digital signal based on the pulse signal. ,
The pulse signal has a plurality of pulses including a first pulse indicating a first pulse width and a second pulse indicating a second pulse width;
The first pulse width and the second pulse width have a width according to the presence or absence of a partial change in the waveform of the voltage,
The second pulse width is larger than the first pulse width,
The signal generation unit generates the first digital signal and the second digital signal based on the pulse signal, and generates the pulse based on a ratio between the first pulse width and the second pulse width. A luminaire for determining whether a pulse of a signal is the first pulse or the second pulse .

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