lighting control device

Abstract

To provide a lighting control device capable of dealing with a variety of lighting forms while avoiding complication of a system.SOLUTION: A lighting control device includes: a lighting circuit; a first output part connected to the lighting circuit; a second output part connected to the lighting circuit; and an input circuit which receives an input signal and designates either a first lighting state that only the first lamp is flickered or a second lighting state that a first lamp and a second lamp are synchronously flickered. The lighting circuit supplies only the first lamp with current from the first output part when the first lighting state is designated by the input circuit, supplies the first lamp with current from the first output part, and supplies the second lamp with current from a second output part when the second lighting state is designated by the input circuit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lighting control device. [Background technology]

[0002] Patent Document 1 discloses a system that lights up a winker lamp by outputting a blinking signal from a lighting control device to the winker lamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-214019 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional systems, the lighting control device requires a switch to distribute the current supply to the left and right turn signal lamps.Furthermore, to flash both the left and right turn signal lamps simultaneously, such as in the case of hazard lights, additional wiring and switches are required.

[0005] Fig. 5 is a diagram illustrating a system that can flash left and right turn signal lamps separately and simultaneously. In Fig. 5, LED lamp device 3L corresponds to the left front turn signal lamp, and LED lamp device 3R corresponds to the right front turn signal lamp. LED lamp device 4L corresponds to the left rear turn signal lamp, and LED lamp device 4R corresponds to the right rear turn signal lamp.

[0006] In this case, the lighting control device 110 is provided with an output circuit 110a that outputs a flashing signal to the LED lamp devices 3L, 3R, 4L, and 4R simultaneously, and an output circuit 110b that outputs a flashing signal to the LED lamp devices 3L and 4L or the LED lamp devices 3R and 4R. A switch 120 is also required to switch the output destination of the flashing signal from the output circuit 110b between left and right. While providing a switch on the output side of the lighting control device 110 in this way makes it possible to switch the lighting mode of the turn signal lamp, this can lead to problems such as complicated wiring due to harnesses, which can complicate the system and increase implementation costs.

[0007] Furthermore, when an answerback function or an ESS (emergency braking signal system) is introduced, it is necessary to prepare even more lighting modes for the turn signal lamps. In this case, it is necessary to add switches and wiring to the output side of the lighting control device 110, further complicating the system.

[0008] The present invention has been made to solve the above problems, and has an object to provide a lighting control device that can accommodate various lighting modes while avoiding the system from becoming complicated. [Means for solving the problem]

[0009] In order to solve the above problem, one aspect of the present invention is to A lighting control device that controls the lighting state of a lamp provided in a vehicle, a lighting circuit that receives a current supply from a power source and causes the first lamp and the second lamp to blink; a first output connected to the lighting circuit; a second output connected to the lighting circuit; an input circuit that receives an input signal and instructs the lighting circuit to either a first lighting state in which only the first lamp is flashed, or a second lighting state in which the first lamp and the second lamp are flashed in synchronization; Equipped with The lighting circuit comprises: When the first lighting state is designated by the input circuit, a current is supplied from the first output section to only the first lamp; A lighting control device is provided that, when the second lighting state is specified by the input circuit, supplies current from the first output unit to the first lamp and supplies current from the second output unit to the second lamp. [Effects of the Invention]

[0010] According to the present invention, it is possible to accommodate various lighting modes while avoiding the system from becoming complicated. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing the configuration of a lighting control system including a lighting control device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a diagram illustrating an example of the configuration of a frequency setting circuit. [Figure 3] FIG. 10 is a diagram showing the relationship between the charging voltage and the waveform of a counter in the lighting circuit. [Figure 4] FIG. 10 is a diagram showing an example (comparison example) in which the blinking period is varied by changing the resistance value. [Figure 5] FIG. 10 is a diagram showing an example of a system that can blink left and right turn signal lamps separately and simultaneously. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] 1 is a diagram showing the configuration of a lighting control system equipped with a lighting control device of this embodiment. Below, a system for controlling the lighting state of a turn signal lamp of a motorcycle will be described as a lighting control system, but the present invention is not limited to controlling the lighting state of a turn signal lamp of a motorcycle, and can be applied to a device for controlling the lighting state of a lamp of any vehicle.

[0014] As shown in FIG. 1, the lighting control system includes a battery BT as a power source that supplies a power supply voltage VB, an ignition switch Isw connected to the battery BT, a turn signal switch TSsw that receives a manual operation to issue an instruction to flash the left or right turn signal lamp, a hazard switch HZsw that receives a manual operation to issue an instruction to output hazard lights, an answerback switch ABsw connected to the battery BT, a lighting control device 10 that controls the lighting state of the turn signals, an ESS (emergency braking signal system) unit 20, LED lamp devices 3L, 3R and LED lamp devices 4L, 4R that are supplied with driving current from the battery BT via the lighting control device 10, and indicators 5L, 5R.

[0015] The LED lamp device 3L corresponds to the left front turn signal, the LED lamp device 3R corresponds to the right front turn signal, the LED lamp device 4L corresponds to the left rear turn signal lamp, and the LED lamp device 4R corresponds to the right rear turn signal lamp.

[0016] The indicators 5L and 5R are connected in parallel to the LED lamp devices 4L and 4R, respectively, and have the function of notifying the driver of the lighting status of the LED lamp devices 4L and 4R by lighting (flashing) simultaneously with the LED lamp devices 4L and 4R.

[0017] The lighting control device 10 includes a turn signal input circuit 11 (an example of an input circuit) and a hazard recognition circuit 12, each having a turn signal switch TSsw and a hazard switch HZsw connected to its input side, an ESS signal input circuit 13 (an example of an input circuit) that receives an ESS signal S output from the ESS unit 20, a frequency setting circuit 14 that receives a frequency switching signal S1 from the ESS signal input circuit 13, a lighting circuit 15 that receives a left signal LS1 and a right signal RS1 output from the turn signal input circuit 11 and the ESS signal input circuit 13, output units 17L and 17R connected to the lighting circuit 15, and output units 18L and 18R connected to the lighting circuit 15.

[0018] 1, LED lamp devices 3L and 3R are connected to output units 17L and 17R, respectively, and LED lamp devices 4L and 4R are connected to output units 18L and 18R, respectively. The LED lamp devices 3L and 3R and the LED lamp devices 4L and 4R are configured to blink when supplied with current from the lighting circuit 15 via the output units 17L and 17R and the output units 18L and 18R.

[0019] The lighting control device 10 also includes a connection line 16A connected to the battery BT via an answerback switch ABsw, and an answerback compatible circuit 16 that merges the connection line 16A with output units 17L, 17R and output units 18L, 18R. The answerback compatible circuit 16 is provided with diodes D1 to D4 for preventing reverse current flow from the lighting circuit 15 to the battery BT.

[0020] Next, the operation of the lighting control device 10 of this embodiment will be described.

[0021] When the ignition switch Isw is on, the turn signal switch TSsw is on, and the hazard switch HZsw is off, a left signal LS or a right signal RS corresponding to the operating direction of the turn signal switch TSsw is input to the turn signal input circuit 11. In this case, the turn signal input circuit 11 outputs a left signal LS1 in response to the input of the left signal LS, or outputs a right signal RS1 in response to the input of the right signal RS.

[0022] When the lighting circuit 15 receives only the left signal LS1 from the turn signal input circuit 11, it supplies current from the battery BT to the LED lamp device 3L (an example of a first lamp) and the LED lamp device 4L (an example of a first lamp) via the output unit 17L and the output unit 18L, causing the LED lamp device 3L and the LED lamp device 4L to flash as a turn signal, thereby indicating the driver's intention to turn left, etc. (an example of a first lighting state).

[0023] When the lighting circuit 15 receives only the right signal RS1 from the turn signal input circuit 11, it supplies current from the battery BT to the LED lamp device 3R and the LED lamp device 4R via the output unit 17R and the output unit 18R, causing the LED lamp device 3R and the LED lamp device 4R to flash as a turn signal, thereby indicating the driver's intention to turn right, etc. (an example of a first lighting state).

[0024] When the ignition switch Isw is on and the hazard switch HZsw is on, a left signal LS and a right signal RS are input to the turn signal input circuit 11. At this time, the turn signal input circuit 11 outputs a left signal LS1 and a right signal RS1.

[0025] When the lighting circuit 15 simultaneously receives both the left signal LS1 and the right signal RS1 from the turn signal input circuit 11, it causes the LED lamp device 3L, the LED lamp device 3R (an example of a second lamp), the LED lamp device 4L and the LED lamp device 4R (an example of a second lamp) to flash simultaneously in synchronization at a first frequency via the output units 17L, 17R and the output units 18L, 18R, thereby displaying a hazard (an example of a second lighting state).

[0026] When the ignition switch Isw is on and the ESS signal input circuit 13 receives the ESS signal S from the ESS unit 20, the ESS signal input circuit 13 simultaneously outputs a left signal LS1 and a right signal RS1. At this time, the ESS signal input circuit 13 also outputs a frequency switching signal S1 to the frequency setting circuit 14. Upon receiving the frequency switching signal S1, the frequency setting circuit 14 switches the flashing frequency to a second frequency that is higher than the first frequency. The ESS unit 20 outputs the ESS signal, for example, when the vehicle suddenly brakes while driving.

[0027] When the lighting circuit 15 simultaneously receives both the left signal LS1 and the right signal RS1 from the turn signal input circuit 11, it causes the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R to flash simultaneously and synchronously at a second frequency via the output units 17L, 17R and output units 18L, 18R, thereby indicating that the ESS is operating (an example of a second lighting state). This helps prevent rear-end collisions with following vehicles.

[0028] FIG. 2 is a diagram illustrating an example of the configuration of the frequency setting circuit.

[0029] In the example of FIG. 2, the frequency setting circuit 14 includes a charge / discharge circuit 14A and a frequency switching circuit 14B.

[0030] In the charge / discharge circuit 14A, resistors R1, R2, capacitors C1, and C2 are connected in series between the voltage VCC and ground, and the charge / discharge time constant is determined by the resistance value (composite resistance value) and capacitor capacitance (composite capacitance) of the charge / discharge circuit 14A. The connection point between resistors R1 and R2 is connected to terminal DISC of the lighting circuit 15, and the connection point between resistor R2 and capacitor C1 is connected to terminal CRT of the lighting circuit 15.

[0031] When the frequency switching signal S1 is not input to the frequency switching circuit 14B, a voltage is generated across the resistor R0 due to the current i0 flowing from the power supply voltage VB to ground, and this voltage turns on the FET 14a, shorting out the capacitor C2. Therefore, the capacitance of the charging / discharging circuit 14A is the capacitance of the capacitor C1.

[0032] When the frequency switching signal S1 is input to the frequency switching circuit 14B, the transistor 14b of the frequency switching circuit 14B turns on, and the gate voltage of the FET 14a drops, turning the FET 14a off. As a result, the capacitance of the charge / discharge circuit 14A becomes the capacitance of the capacitors C1 and C2 connected in series.

[0033] The lighting circuit 15 repeats the operation of connecting the terminal DISC to ground when the voltage of the terminal CRT exceeds a predetermined voltage V1, and releasing the terminal DISC when the voltage of the terminal CRT falls below a predetermined voltage V2, causing the voltage of the terminal CRT to go back and forth between the voltage V1 and the voltage V2.

[0034] FIG. 3 is a diagram showing the relationship between the charging voltage and the waveform of the counter in the lighting circuit.

[0035] Waveform 51 in FIG. 3 shows the charging voltage (voltage at terminal CRT) when frequency switching signal S1 is not input to frequency switching circuit 14B, i.e., when the capacitor capacitance of charge / discharge circuit 14A is equal to the capacitance of capacitor C1. Waveform 53 in FIG. 3 shows the waveform of a counter in lighting circuit 15 corresponding to waveform 51. As shown in waveform 53, the counter repeatedly turns on and off when the voltage at terminal CRT reaches voltage V1 and voltage V2. The blinking period and blinking duty ratio are controlled by the function of lighting circuit 15 based on the count number of charge / discharge cycles indicated by waveform 53. For example, when the turn signal, hazard lights, or ESS are activated, a predetermined number of cycles (e.g., 512 cycles) of counter waveform 53 may correspond to one blinking cycle, and the blinking duty ratio may be set to 50%.

[0036] 3 shows the charging voltage (voltage at terminal CRT) when frequency switching signal S1 is input to frequency switching circuit 14B. Waveform 54 shows the waveform of the counter in lighting circuit 15 corresponding to waveform 52. In this case, the capacitance of charge / discharge circuit 14A is the capacitance of capacitors C1 and C2 connected in series, so the charging and discharging speeds increase and the periods of waveforms 52 and 54 become shorter. Therefore, the blinking period also becomes shorter according to the period of waveform 54.

[0037] In this embodiment, the time constant of the charge / discharge circuit 14A is changed by switching the capacitance of the capacitor in the charge / discharge circuit 14A, so the charge rate and discharge rate can be switched simultaneously, and the blinking period can be changed over a wide range. Therefore, for example, when the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R are used as turn signal position lights, it is possible to accommodate cases where the blinking period is desired to be longer than that of the hazard lights.

[0038] As a comparative example, instead of changing the capacitance of the capacitor, it is also possible to change the resistance value of the resistor.

[0039] FIG. 3A is a diagram showing an example (comparative example) in which the blinking period is varied by changing the resistance value.

[0040] 3A, when a frequency switching signal S1 is input to a frequency switching circuit 114B, a transistor 114b is turned on and a current i flows. As a result, a voltage generated across a resistor r turns on an FET 114a, and a resistor R3 is inserted in parallel with the resistor R1.

[0041] In this case, inserting resistor R3 in parallel with resistor R1 increases the charging rate, shortening the blinking cycle by the same amount. However, in the case of Figure 3A, the path consisting of resistors R1 and R3 does not contribute to discharging, so the discharge rate cannot be increased. This makes it impossible to change the blinking cycle by a large amount. Therefore, for example, when using LED lamp devices 3L, 3R and LED lamp devices 4L, 4R as turn signal position lamps, it becomes impossible to achieve a blinking cycle that is longer than that during hazard warning.

[0042] Next, in this embodiment, priorities are assigned among a plurality of modes for lighting the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R.

[0043] First, in this embodiment, the answerback function has the highest priority. As shown in FIG. 1, when the answerback switch ABsw is turned on, current is supplied from the battery BT to the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R via the connection line 16A. The current supply via the connection line 16A is unrelated to the operation of the lighting circuit 15, and this current does not pass through any other switches. Therefore, when the answerback switch ABsw is turned on, the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R are always lit. The answerback function notifies the driver of the execution of locking or unlocking in response to the engine operation or the remote control locking or unlocking operation.

[0044] In this embodiment, when a hazard warning light and a turn signal conflict with each other, the hazard warning light takes priority.

[0045] 1, in this embodiment, when the hazard switch HZsw is turned on, regardless of the state of the turn signal switch TSsw, the left signal LS and the right signal RS are input to the turn signal input circuit 11. Therefore, in this embodiment, the hazard warning signal takes priority over the turn signal.

[0046] Furthermore, in this embodiment, when a conflict occurs between the hazard and the ESS signal S, the hazard takes priority.

[0047] In this embodiment, when the hazard switch HZsw is on, the hazard recognition circuit 12 recognizes that the hazard switch HZsw is on by receiving the left signal LS and the right signal RS. Furthermore, upon recognizing that the hazard switch HZsw is on, the hazard recognition circuit 12 outputs the hazard recognition signal SH (FIG. 1) to the ESS signal input circuit 13. While the hazard recognition signal SH is being input, the ESS signal input circuit 13 does not output the frequency switching signal S1 even if the ESS signal S is input. As a result, the frequency switching signal S1 is not input to the frequency setting circuit 14, and the first frequency (an example of a predetermined frequency) is selected as the flashing frequency. Therefore, the LED lamp devices 3L, 3R and the LED lamp devices 4L, 4R flash at the first frequency. In other words, even if the ESS signal S is output from the ESS unit 20, the hazard display state is maintained.

[0048] As described above, according to this embodiment, the lighting states (first lighting state and second lighting state) are specified by the turn signal input circuit 11 and the ESS signal input circuit 13. Then, the lighting circuit 15 supplies current from the output units 17L and 18L to the LED lamp devices 3L and 4L, and from the output units 17R and 18R to the LED lamp devices 3R and 4R, in accordance with the specified lighting state. Therefore, the lighting mode (first lighting state and second lighting state) can be switched without manipulating the connection state on the output side of the lighting control device 10. Therefore, various lighting modes can be accommodated without complicating the system.

[0049] Furthermore, according to this embodiment, the flashing frequency is switched depending on whether or not the frequency switching signal S1 is input to the frequency setting circuit 14. Regardless of the frequency (first frequency or second frequency), the lighting circuit 15 supplies current from the output units 17L and 18L to the LED lamp devices 3L and 4L, and from the output units 17R and 18R to the LED lamp devices 3R and 4R. This allows the lighting mode to be switched without manipulating the connection state on the output side of the lighting control device 10. This allows the system to accommodate various lighting modes (flashing at the first frequency and flashing at the second frequency) without complicating the system.

[0050] Although an embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes designs within the scope of the gist of the present invention.

[0051] The following additional notes are provided regarding the above-described embodiments of the present invention.

[0052] [Appendix 1] A lighting control device (10) that controls the lighting state of a lamp provided in a vehicle, a lighting circuit (15) that receives current from a power source and causes the first lamps (3L, 4L) and the second lamps (3R, 4R) to blink; a first output section (17L, 18L) connected to the lighting circuit; a second output section (17R, 18R) connected to the lighting circuit; an input circuit (11, 13) that receives an input signal and instructs the lighting circuit to either a first lighting state in which only the first lamp is made to flash, or a second lighting state in which the first lamp and the second lamp are made to flash synchronously; Equipped with The lighting circuit comprises: When the first lighting state is designated by the input circuit, a current is supplied from the first output section to only the first lamp; A lighting control device that, when the second lighting state is specified by the input circuit, supplies current from the first output unit to the first lamp and supplies current from the second output unit to the second lamp.

[0053] According to the configuration described in Supplementary Note 1, the lighting state is specified by the input circuit, and the lighting circuit supplies current from the first output unit to the first lamp and from the second output unit to the second lamp in accordance with the specified lighting state (first lighting state and second lighting state). Therefore, the lighting state can be switched without operating the output side of the lighting control device, and various lighting modes can be accommodated without complicating the system.

[0054] [Appendix 2] a frequency setting circuit that receives a selection signal and selects one flashing frequency from a plurality of flashing frequencies for the lighting circuit; The lighting control device described in Appendix 1, wherein, in the second lighting state, the lighting circuit causes the first lamp and the second lamp to flash synchronously at the flashing frequency selected by the frequency setting circuit.

[0055] According to the configuration described in Supplementary Note 2, the flashing frequency is selected by the frequency setting circuit, and the lighting circuit supplies current from the first output unit to the first lamp and from the second output unit to the second lamp, regardless of the selected flashing frequency. This makes it possible to switch the lighting state without switching the connection on the output side of the lighting control device, making it possible to accommodate various lighting modes without complicating the system.

[0056] [Appendix 3] The flashing frequency is selected according to a charging / discharging speed in a charging / discharging circuit provided in the frequency setting circuit and having a resistor and a capacitor connected in series with each other, 3. The lighting control device according to claim 2, wherein the frequency setting circuit switches the flashing frequency by switching the capacitance of the capacitor.

[0057] According to the configuration described in Supplementary Note 3, the frequency setting circuit switches the flashing frequency by changing the capacitance of the capacitor in the charge / discharge circuit, so the flashing frequency can be selected from a wide range. This allows the system to accommodate various lighting modes with significantly different flashing frequencies without complicating the system.

[0058] [Appendix 4] A lighting control device according to any one of Supplementary Note 1 to Supplementary Note 3, wherein when a plurality of input signals respectively corresponding to the first lighting state and the second lighting state conflict with each other, the input circuit preferentially assigns the second lighting state to the lighting circuit.

[0059] According to the configuration described in Supplementary Note 4, when there is a conflict between input signals, the second lighting state takes priority over the first lighting state. For example, the hazard lights take priority over the turn signals.

[0060] [Appendix 5] A lighting control device described in any one of Appendix 1 to Appendix 4, wherein when multiple selection signals corresponding to multiple flashing frequencies respectively conflict, the frequency setting circuit preferentially selects a predetermined frequency as the flashing frequency.

[0061] According to the configuration described in Supplementary Note 5, when a plurality of the selection signals compete with each other, a predetermined frequency is preferentially selected as the flashing frequency. For example, even if an ESS signal is output, a hazard signal is given priority.

[0062] [Appendix 6] Equipped with a connection line that supports answerback function, 6. The lighting control device according to any one of Supplementary Note 1 to Supplementary Note 5, wherein the connection lines connect the first output unit and the second output unit to the power supply without passing through the lighting circuit.

[0063] According to the configuration described in Appendix 6, the connection line connects the first output section and the second output section to the power supply without passing through the lighting circuit, so the lighting state for answerback takes priority regardless of the state of the lighting circuit. [Explanation of symbols]

[0064] 10 Lighting control device 11 Turn signal input circuit 12 Hazard Recognition Circuit 13 ESS signal input circuit 14 Frequency setting circuit 15 Lighting circuit 3L, 3R LED lamp device 4L, 4R LED lamp unit 17L, 17R output section 18L, 18R output section

Claims

1. A lighting control device that controls the lighting state of a lamp provided in a vehicle, a lighting circuit that receives a current supply from a power source and causes the first lamp and the second lamp to blink; a first output connected to the lighting circuit; a second output connected to the lighting circuit; an input circuit that receives an input signal and instructs the lighting circuit to either a first lighting state in which only the first lamp is flashed or a second lighting state in which the first lamp and the second lamp are flashed in synchronization; and Equipped with The lighting circuit comprises: When the first lighting state is designated by the input circuit, a current is supplied from the first output section to only the first lamp; A lighting control device that, when the second lighting state is specified by the input circuit, supplies current from the first output unit to the first lamp and supplies current from the second output unit to the second lamp.

2. a frequency setting circuit that receives a selection signal and selects one flashing frequency from a plurality of flashing frequencies for the lighting circuit; 2. The lighting control device according to claim 1, wherein the lighting circuit, in the second lighting state, causes the first lamp and the second lamp to flash in synchronous with each other at the flashing frequency selected by the frequency setting circuit.

3. The flashing frequency is selected according to a charging / discharging speed in a charging / discharging circuit provided in the frequency setting circuit and having a resistor and a capacitor connected in series with each other, The lighting control device according to claim 2 , wherein the frequency setting circuit switches the flashing frequency by switching the capacitance of the capacitor.

4. 2. The lighting control device according to claim 1, wherein when a plurality of the input signals respectively corresponding to the first lighting state and the second lighting state conflict with each other, the input circuit preferentially assigns the second lighting state to the lighting circuit.

5. 3. The lighting control device according to claim 2, wherein when a plurality of the input signals respectively corresponding to the first lighting state and the second lighting state conflict with each other, the input circuit preferentially assigns the second lighting state to the lighting circuit.

6. 4. The lighting control device according to claim 3, wherein when a plurality of the input signals respectively corresponding to the first lighting state and the second lighting state conflict with each other, the input circuit preferentially assigns the second lighting state to the lighting circuit.

7. The lighting control device according to claim 2 , wherein when a plurality of the selection signals respectively corresponding to a plurality of the flashing frequencies compete with each other, the frequency setting circuit preferentially selects a predetermined frequency as the flashing frequency.

8. The lighting control device according to claim 3 , wherein when a plurality of the selection signals respectively corresponding to a plurality of the flashing frequencies compete with each other, the frequency setting circuit preferentially selects a predetermined frequency as the flashing frequency.

9. The lighting control device according to claim 5 , wherein when a plurality of the selection signals respectively corresponding to a plurality of the flashing frequencies compete with each other, the frequency setting circuit preferentially selects a predetermined frequency as the flashing frequency.

10. The lighting control device according to claim 6 , wherein when a plurality of the selection signals respectively corresponding to a plurality of the flashing frequencies compete with each other, the frequency setting circuit preferentially selects a predetermined frequency as the flashing frequency.

11. Equipped with a connection line that supports answerback function, The lighting control device according to any one of claims 1 to 10, wherein the connection lines connect the first output section and the second output section to the power supply without passing through the lighting circuit.

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