JP6544647B2 - Control system for lighting device and control method for lighting device - Google Patents

Description

  The present invention relates to a control system of a luminaire and a control method of the luminaire, and relates to a control system of a luminaire which controls a temperature around the luminaire and a control method of the luminaire.

  In the surroundings of the lighting fixtures such as ceiling lighting fixtures used as factory lights etc., the heat is easily generated due to the heat generation by lighting of the lighting fixture itself and the exhaust heat of the factory. For this reason, the ambient temperature of the lighting apparatus tends to be high. In summer, in particular, the ambient temperature tends to exceed the heat resistance temperature of the lighting apparatus. On the other hand, the lighting equipment is changing the lighting apparatus to be used from a discharge lamp etc. to LED by promotion of recent energy saving, large luminous flux-ization of LED (Light Emitting Diode: light emitting diode), etc. The light emitting portion itself of this LED is susceptible to heat as compared with a discharge lamp or the like which has been used hitherto. For this reason, in the case of a luminaire using an LED as a luminaire, when it is used as a factory light or the like, the LED itself becomes high temperature due to the heat generation at the time of its own light and the waste heat of the factory, etc. It may become short.

  Patent Document 1 discloses a technique for controlling the ambient temperature of a lighting fixture to avoid shortening the life of the LED. The LED-based lighting fixture disclosed in Patent Document 1 includes an LED, a power supply, a temperature sensor, and a controller. The power supply supplies power to the LEDs. The LED is powered by the power supply and emits light. The temperature sensor measures the temperature at a predetermined position of the luminaire having the LED. The controller determines the LED drive current to maintain the LED junction temperature below the threshold based on the measured temperature, and supplies the input signal to the power supply to supply this drive current to the LED Supply. The power supply supplies drive current to the LED based on the input signal. As described above, by controlling the temperature of the LED junction to be lower than the threshold value, the LED does not become hot and the shortening of the LED life is avoided.

Japanese Patent Application Publication No. 2013-503470

  The LED-based lighting fixture disclosed in the above-mentioned Patent Document 1 only controls the heat generation of the LED itself based on the ambient temperature of the LED. That is, control of the temperature of the air surrounding the LED is not performed.

  For this reason, when this lighting fixture is used in an environment where heat is likely to be generated, such as when used as a factory light, the temperature of a lighting device such as an LED can not be reduced more effectively, and lighting There is a problem that the lifetime of the device may be shortened.

  It is an object of the present invention to solve the above-mentioned problems, and to suppress the shortening of the service life of the lighting apparatus used in the lighting equipment even when the lighting equipment is used in an environment where heat is easily generated in a factory or the like. To provide a control system and a control method of a luminaire.

  The control system of the first lighting fixture of the present invention comprises a lighting fixture comprising one or more lighting devices emitting light based on the supply of power, and a predetermined ambient temperature of the lighting fixture during operation of its own device. When the first temperature is exceeded, control is performed to reduce the drive current supplied to the lighting device based on the ambient temperature of the lighting device, and an air environment including the volume of air around the lighting device and the temperature is provided. And a controller configured to control the ambient temperature of the luminaire to decrease.

  The control system of the second luminaire according to the present invention comprises a luminaire comprising one or more luminaires that emit light based on the supply of electric power, and a predetermined ambient temperature of the luminaire during operation of its own device. And controlling the drive current supplied to the lighting apparatus to be reduced based on the ambient temperature of the lighting apparatus when the first temperature is exceeded, based on the ambient temperature of the lighting apparatus which exceeds the predetermined first temperature, and And a controller configured to control an air environment including an ambient air volume and a temperature so as to reduce an ambient temperature of the luminaire.

  The control system of the third luminaire according to the present invention comprises a luminaire comprising one or more luminaires that emit light based on the supply of a drive current, measuring the ambient temperature of the luminaire, and A plurality of luminaire sets for receiving an indication signal indicating a magnitude and supplying a drive current based on the indication signal to the luminaire provided in the luminaire, and the corresponding luminaires of the measured luminaire set A plurality of controls for transmitting information indicating the ambient temperature, receiving a current indication command indicating the magnitude of the drive current in response to the transmission, and outputting an indication signal corresponding to the current indication command to the corresponding lighting fixture set An air conditioner for adjusting an air environment including an air volume including a device, an air volume at an installation place of the lighting fixture provided with the lighting fixture set based on a control signal, and the lighting from the plurality of control devices Provision of the luminaire of the luminaire set having a temperature above the first temperature when receiving information indicating the ambient temperature of the tool and receiving information indicating the ambient temperature above a predetermined first temperature; It determines to reduce the drive current supplied to the lighting device, transmits a current instruction command indicating the determined magnitude of the drive current to the corresponding control device, and outputs a control signal to the air conditioner And a host device that controls the air conditioner to lower the ambient temperature of the lighting apparatus.

  The control method of the first lighting fixture of the present invention checks the ambient temperature of a lighting fixture equipped with one or more lighting devices emitting light based on the supply of power, and the ambient temperature exceeds a predetermined first temperature. In this case, based on the ambient temperature of the luminaire, control is performed to reduce the drive current supplied to the luminaire, and the air environment including the air volume and temperature around the luminaire is the ambient temperature of the luminaire To be controlled to decrease.

  According to a second control method of a luminaire of the present invention, ambient temperatures of a plurality of luminaires provided with one or more luminaires emitting light based on supply of power are checked, and the ambient temperature is a predetermined first temperature. Control to reduce the drive current supplied to the lighting device based on the ambient temperature of the lighting device exceeding the predetermined first temperature when the temperature exceeds the predetermined first temperature, and based on the ambient temperature of the lighting device The air environment including the air volume and temperature around the luminaire is controlled so that the ambient temperature of the luminaire decreases.

  According to the present invention, even when the lighting fixture is used in an environment where heat is easily accumulated in a factory or the like, a control system of the lighting fixture and control of the lighting fixture capable of suppressing shortening of the life of the lighting device used in the lighting fixture. We can provide a way.

It is a figure showing an example of a control system of a lighting fixture concerning a 1st embodiment of the present invention. It is a figure which shows an example of the control system of the lighting fixture which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows an example of operation | movement of the control system of the lighting fixture which concerns on the 2nd Embodiment of this invention. It is a flowchart which branches from FIG. 3 which shows an example of operation | movement of the control system of the lighting fixture which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of the temperature control curve of the control system of the lighting fixture which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of the control system of the lighting fixture which concerns on the 3rd Embodiment of this invention. It is a figure which shows an example of the control system of the lighting fixture which concerns on the 4th Embodiment of this invention. It is a flowchart which shows an example of operation | movement of the control system of the lighting fixture which concerns on the 4th Embodiment of this invention. It is a figure which shows an example of the control system of the lighting fixture which concerns on the 5th Embodiment of this invention.

  Next, embodiments of the present invention will be described with reference to the drawings.

First Embodiment
FIG. 1 is a view showing an example of a control system 1 of a luminaire according to a first embodiment of the present invention.

  A control system 1 for a lighting fixture according to the present embodiment is configured of a lighting fixture 2 and a control device 3. The lighting fixture 2 is installed, for example, on a ceiling of a factory or the like.

  The lighting apparatus 2 includes one or more lighting devices that emit light based on the supply of power. The lighting device generates heat, for example, by emitting light. The control device 3 performs control to reduce the drive current supplied to the lighting device based on the ambient temperature of the lighting device 2 when the ambient temperature of the lighting device 2 exceeds a predetermined first temperature. Thereby, the control device 3 reduces the ambient temperature of the lighting apparatus 2.

  The predetermined first temperature is, for example, 50 ° C., and is a temperature that may shorten the life of the lighting device if the operation is continued beyond this temperature. This temperature may be changed as appropriate depending on the lighting apparatus 2 to be used, the lighting apparatus, the environment to be used, etc., without sticking to 50.degree.

  During operation of the system, the lighting device emits light to illuminate the surroundings. The lighting device generates heat by emitting light. The control device 3 checks the ambient temperature of the lighting device 2. Then, the control device 3 reduces the drive current supplied to the lighting device based on the ambient temperature of the lighting device 2 when the ambient temperature of the lighting device 2 exceeds the first temperature (for example, 50 ° C.) Control to do so. Thus, the control system 1 suppresses the heat generation of the lighting device. Furthermore, the control system 1 controls the air environment including the air volume and temperature around the luminaire 2 with the control device 3 so that the ambient temperature of the luminaire 2 decreases, thereby providing the installation location of the luminaire 2. Release the heat of the heat.

  As described above, in the first embodiment of the present invention, the drive current supplied to the lighting device to suppress the temperature rise of the lighting device when the ambient temperature of the lighting device exceeds the first temperature. Control. Furthermore, in the first embodiment, the air environment around the luminaire is controlled.

  For this reason, according to the first embodiment, even when the lighting apparatus is used in an environment where heat is easily dissipated in a factory or the like, the temperature around the lighting apparatus can be reduced more effectively and promptly. The shortening of the life of the lighting device used in the lighting fixture can be suppressed.

Second Embodiment
FIG. 2 is a view showing an example of a control system 5 of a luminaire according to a second embodiment of the present invention.

  The control system 5 of the lighting fixture according to the present embodiment is configured of the lighting fixture 2, the air conditioner 4, the temperature sensor 6, the power supply 7, and the control device 3. The lighting fixture 2 is installed, for example, on a ceiling of a factory or the like.

  The lighting fixture 2 emits light based on the supply of a drive current, and includes one or more lighting devices that generate heat in response to the light emission. The lighting device includes light emitting diodes (LEDs). The air conditioner 4 controls the air volume and temperature of the blowing air based on the control signal output from the control device 3 to air-condition the installation place of the lighting fixture 2. The temperature sensor 6 measures the ambient temperature of the luminaire 2. The power supply 7 supplies a drive current to the lighting device based on an instruction signal from the control device 3. When the ambient temperature of the luminaire 2 measured by the temperature sensor 6 exceeds a predetermined first temperature during operation of its own device, the control device 3 suppresses the temperature rise of the luminaire 2 The drive current supplied to the lighting apparatus provided in the lighting apparatus 2 is controlled. The controller 3 determines the drive current of the lighting device based on the measured ambient temperature. Then, the control device 3 outputs an instruction signal based on the determined drive current to the power supply 7. Further, the control device 3 outputs a control signal to the air conditioner 4 based on the measured ambient temperature.

  Although the temperature sensor 6 is directly connected to the control device 3 in FIG. 2, the present invention is not limited to this. For example, the temperature sensor 6 may be connected to the control device 3 via the power supply 7.

  The predetermined first temperature is, for example, 50 ° C., and is a temperature that may shorten the life of the lighting device if the operation is continued beyond this temperature. This temperature may be changed as appropriate depending on the lighting device and the environment to be used, without sticking to 50 ° C.

  Next, the operation of the control system for a luminaire according to the second embodiment of the present invention will be described in detail with reference to FIG. 3, FIG. 4, and FIG.

  FIG. 3 is a flowchart showing an example of the operation of the control system of the lighting fixture according to the second embodiment of the present invention.

  FIG. 4 is a flowchart branching from FIG. 3 showing an example of the operation of the control system of the lighting fixture according to the second embodiment of the present invention.

  FIG. 5 is a view showing an example of a temperature control curve of a control system of a luminaire according to a second embodiment of the present invention. This FIG. 5 shows the drive current (proportion (%) to the maximum output current) supplied to the lighting device of the lighting device 2 when the ambient temperature of the lighting device 2 is T (° C.). When the ambient temperature of the luminaire 2 is lower than a predetermined first temperature (T1: 50 ° C. (high temperature)), the drive current is normally supplied to the lighting device of the luminaire 2 during normal operation (first drive current) ) (I1: 100%). This normal current is, for example, about 700 mA. This value varies depending on the type of lighting device, operating conditions, and the like, and may be changed as appropriate. When the ambient temperature of the luminaire 2 exceeds the first temperature, the drive current is reduced in proportion to the increase of the ambient temperature. That is, in the case where the ambient temperature is between the first temperature (T1: 50 ° C.) and the shutdown temperature (Tsd: 80 ° C.), for example, it is a diagonal line as shown in FIG. (If (%)). Formula: If =-(8/3) T + 233.3 Here, T is temperature (degreeC), If shows the drive current (%) in case temperature is T. As shown in FIG.

  The shutdown temperature (Tsd: 80 ° C.) is a temperature at which the power supply 7 supplying drive current to the lighting device of the lighting device 2 shuts down.

  In step S1 of FIG. 3, the operation of the system starts when the user turns on each device of the system, etc., and the temperature sensor 6 outputs the temperature information of the lighting apparatus 2 to the control device 3.

  In step S2 of FIG. 3, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. If the ambient temperature of the lighting apparatus 2 is a normal operating temperature, the process proceeds to step S3 in FIG. As a result of investigation, if the ambient temperature of the lighting fixture 2 is not the normal operating temperature, the process proceeds to step A1 in FIG. The normal operating temperature means that the ambient temperature of the lighting fixture 2 is equal to or higher than a predetermined second temperature (T2: -20 ° C (abnormally low temperature)) and the predetermined first temperature (T1: 50 ° C (high temperature)) The following is the case. If the temperature is lower than the second temperature (T2: -20 ° C), there is a possibility that the electrical components (LEDs, semiconductors, ICs, capacitors, etc.) in each device can not operate normally. When the temperature exceeds the predetermined first temperature (T1: 50 ° C.), it is necessary to reduce the operating current supplied to the lighting device of the lighting device 2 to suppress heat generation.

  In step S3 of FIG. 3, the control device 3 outputs, to the power supply 7, an instruction signal for causing the predetermined first drive current (I1) to flow. The power supply 7 receives the instruction signal, and supplies the first drive current (I1) to the lighting device of the lighting fixture 2 by, for example, constant current control. The lighting device of the lighting device 2 emits light and illuminates the surroundings with the brightness corresponding to the first drive current (I1). The lighting device generates heat by emitting light. The first drive current (I1) is the normal current shown in FIG.

  In step S4 of FIG. 3, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. When the ambient temperature of the lighting fixture 2 exceeds the first temperature (T1), the process proceeds to step S5 of FIG.

  In step S5 of FIG. 3, the control device 3 outputs a control signal for operating at a predetermined setting including air volume and temperature to the air conditioner 4, and operates the air conditioner 4 at the predetermined setting. For example, in the case where the air conditioner 4 has three types of air volume: low, medium and high, the predetermined setting is, for example, high air volume and 25 ° C. in temperature. The predetermined setting may be appropriately changed according to the number of types of air volume that can be set by the air conditioner 4 and the operating environment of the present system, regardless of the setting content (the air volume is strong and the temperature is 25 ° C.).

  As described above, when the ambient temperature of the lighting device 2 exceeds the first temperature by the control device 3, the air conditioning device 4 is operated at the predetermined setting including the air volume and the temperature. Temperature can be reduced more effectively and promptly.

  In step S6 of FIG. 3, the control device 3 checks whether the mode currently set is the light source output fixing mode. If the light source output fixing mode is set, the process proceeds to step S13 in FIG. If the light source output fixing mode is not set, the process proceeds to step S7 of FIG. In the light source output fixing mode, the brightness of the lighting device is not reduced without reducing the driving current supplied to the lighting device of the lighting device 2 even when the ambient temperature of the lighting device 2 exceeds the first temperature (T1). Control mode to keep Generally, when the lighting device is an LED, the driving current of the LED and the brightness of the LED are roughly proportional but not perfect. This is because the luminous efficiency decreases as the temperature of the LED rises.

  In step S7 of FIG. 3, the control device 3 obtains a drive current based on the equation: If = − (8/3) T + 233.3 shown in FIG. 5 and reduces the drive current in proportion to the temperature. An instruction signal based on the current is output to the power supply 7 to cause the power supply 7 to supply the drive current to the lighting device.

  As described above, when the ambient temperature of the lighting apparatus 2 exceeds the first temperature by the control device 3, the air conditioner 4 is operated at a predetermined setting in step S5 of FIG. Then, in step S7 of FIG. 3, the drive current is determined based on an equation that reduces the drive current in inverse proportion to the rise in the ambient temperature, and the power supply 7 supplies the drive current to the lighting device. For this reason, the temperature around the lighting fixture 2 can be reduced more effectively and promptly.

  In step S8 of FIG. 3, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. If the result of the examination indicates that the ambient temperature is equal to or higher than the shutdown temperature (Tsd), the process proceeds to step S9 in FIG. If the checked result indicates that the ambient temperature is not higher than the shutdown temperature (Tsd), the process proceeds to step S11 in FIG.

  In step S9 of FIG. 3, the control device 3 outputs an instruction signal indicating stop of the drive current to the power supply 7, and causes the power supply 7 to stop the supply of the drive current to the lighting device.

  In step S10 of FIG. 3, the control device 3 outputs a control signal indicating a setting for stopping operation to the air conditioner 4, stops the air conditioner 4, and ends the present process. At this time, when the setting other than the setting based on the control signal of the control device 3 is performed in the air conditioner 4, the operation may be continued with this setting.

  In step S11 of FIG. 3, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. If the result of examination indicates that the ambient temperature is lower than the first temperature (T1), the process proceeds to step S12 of FIG. If the result of examination indicates that the ambient temperature is not less than the first temperature (T1), the process returns to step S7 of FIG.

  In step S12 of FIG. 3, the control device 3 outputs a control signal indicating a setting for stopping operation to the air conditioner 4 to stop the air conditioner 4. At this time, when the setting other than the setting based on the control signal of the control device 3 is performed in the air conditioner 4, the operation may be continued with this setting. Then, the process returns to step S3 of FIG.

  In step S13 of FIG. 3, the control device 3 starts measurement of time t.

  In step S14 of FIG. 3, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. If the result of the examination indicates that the ambient temperature is equal to or higher than the first temperature (T1), the process proceeds to step S15 in FIG. If the checked result indicates that the ambient temperature is not higher than the first temperature (T1), the process proceeds to step S16 in FIG.

  In step S15 of FIG. 3, the control device 3 checks the time t when the measurement is started in step S13 of FIG. 3, and if the time t exceeds a predetermined time (t1: 5 minutes, for example), the diagram The process proceeds to step S7 of 3. The predetermined time (t1) may be changed as appropriate depending on the operating environment of the present system. If the time t is not longer than the predetermined time (t1), the process returns to step S14 of FIG.

  In step S16 of FIG. 3, the control device 3 outputs a control signal indicating the setting for stopping the operation to the air conditioner 4 to stop the air conditioner 4. At this time, when the setting other than the setting based on the control signal of the control device 3 is performed in the air conditioner 4, the operation may be continued with this setting. And it returns to FIG.3 S4.

  Then, in step A1 of FIG. 4 branched from step S2 of FIG. 3, the control device 3 sets a predetermined second drive current (I2, for example, 60% (low) lower than the first drive current (I1). An instruction signal for causing current to flow is output to the power supply 7. The power supply 7 receives the instruction signal, and supplies the drive current (I2) to the lighting device of the lighting fixture 2 by, for example, constant current control.

  In step A2 of FIG. 4, the control device 3 checks the ambient temperature of the lighting apparatus 2 based on the temperature information from the temperature sensor 6. If the result of the examination shows that the ambient temperature of the lighting apparatus 2 is lower than or equal to a predetermined second temperature (T2: -20 ° C (abnormally low temperature)), the process proceeds to step A3 in FIG. When the result of the examination shows that the ambient temperature of the lighting device 2 is not below the predetermined second temperature (T2: -20.degree. C.), the ambient temperature of the lighting device 2 is above the predetermined first temperature (T1) Therefore, the process proceeds to step A4 in FIG.

  In step A3 of FIG. 4, the control device 3 continues to check the ambient temperature of the lighting fixture 2 based on the temperature information from the temperature sensor 6. And, when the ambient temperature of the luminaire 2 exceeds the temperature (Tr2: 0 ° C.) indicating recovery from abnormal low temperature, that is, the ambient temperature of the luminaire 2 is sufficiently within the normal operating temperature range In this case, the process proceeds to step S3 of FIG.

  In step A4 of FIG. 4, the control device 3 outputs a control signal to operate the air conditioner 4 at a predetermined setting (for example, strong air volume, 25 ° C. temperature), and the air conditioner 4 is set to the predetermined setting. Operate at The predetermined setting may be appropriately changed according to the number of types of air volume that can be set by the air conditioner 4 and the operating environment of the present system, regardless of the setting content (the air volume is strong and the temperature is 25 ° C.).

  In step A5 of FIG. 4, the control device 3 continues to check the ambient temperature of the lighting fixture 2 based on the temperature information from the temperature sensor 6. And, when the ambient temperature of the luminaire 2 becomes lower than the temperature (Tr 1: 45 ° C.) indicating recovery from high temperature, that is, the ambient temperature of the luminaire 2 is sufficiently within the normal operating temperature range In this case, the process proceeds to step A6 in FIG.

  In step A6 of FIG. 4, the control device 3 outputs a control signal indicating a setting for stopping operation to the air conditioner 4 to stop the air conditioner 4. At this time, if the air conditioner 4 is already operating at a setting other than the setting based on the control signal of the control device 3 before setting the predetermined setting to the air conditioner 4 at the stage of step A4 in FIG. The air conditioner 4 may be returned to the setting that was already in operation to continue the operation. Then, the process returns to step S3 of FIG.

  Thus, according to the second embodiment of the present invention, when the ambient temperature of the luminaire 2 exceeds the first temperature (high temperature), the controller 3 increases the temperature of the luminaire 2. The drive current supplied to the lighting device is controlled to suppress. Furthermore, the control device 3 controls the air conditioner 4 so that the temperature of the installation place of the lighting fixture 2 is lowered by the air conditioner 4.

  For this reason, even when using the luminaire in an environment where heat is likely to be generated in a factory or the like, the temperature around the luminaire can be reduced more effectively and promptly. Shortening of life can be suppressed.

  In addition, when the ambient temperature of the lighting apparatus 2 is not a normal operating temperature or an abnormally low temperature at the start of operation of the control device 3, a driving current lower than the driving current normally provided is supplied to the lighting apparatus of the lighting apparatus 2. And wait for it to reach normal operating temperature. In addition, when the ambient temperature of the lighting apparatus 2 is not normal operating temperature or high temperature at the start of operation of the control device 3, a driving current lower than the driving current supplied at normal time is supplied to the lighting device Run 4 in a more robust setting and wait for normal operating temperature. Therefore, even when the ambient temperature of the lighting apparatus is not the normal operating temperature at the start of the operation of the control device 3, the normal operating temperature can be achieved in a short time, and the normal operation can be started.

Third Embodiment
FIG. 6 is a view showing an example of a control system 8 of a luminaire according to a third embodiment of the present invention.

  The control system 8 of the third embodiment is provided with a plurality of the lighting devices 2 in the configuration of the control system 1 of the lighting device of the first embodiment described above. The lighting apparatus 2 used in the present embodiment is the same as that of the above-described first embodiment, and therefore the description thereof is omitted.

  The control system 8 of the lighting fixtures according to the present embodiment is configured of a plurality of lighting fixtures 2 and a control device 9. The lighting fixture 2 is installed, for example, on a ceiling of a factory or the like.

  Each lighting fixture 2 of the plurality of lighting fixtures 2 includes one or more lighting devices that emit light based on the supply of power. The lighting device generates heat, for example, by emitting light. When the ambient temperature of the luminaire 2 exceeds a predetermined first temperature during operation of its own device, the control device 9 suppresses the temperature rise of the luminaire 2 exceeding the predetermined first temperature. Control the power supplied to the luminaire equipped with the luminaire 2 that has exceeded the first temperature.

  The predetermined first temperature is, for example, 50 ° C., and is a temperature that may shorten the life of the lighting device if the operation is continued beyond this temperature. This temperature may be changed as appropriate depending on the luminaire to be used, the luminaire and the environment to be used without sticking to 50 ° C.

  During operation of the system, the lighting device emits light to illuminate the surroundings. The lighting device generates heat by emitting light. The controller 9 checks the ambient temperature of the plurality of lighting fixtures 2.

  Then, when there is a lighting fixture 2 whose ambient temperature exceeds the first temperature (eg, 50 ° C.), the ambient temperature of the lighting fixture 2 above the first temperature (eg, 50 ° C.) And control to reduce the drive current supplied to the lighting apparatus provided in the lighting apparatus 2. This suppresses the heat generation of the lighting device.

  Thus, according to the third embodiment of the present invention, when there is a luminaire 2 in which the ambient temperature of the luminaire 2 exceeds the first temperature, the luminaire 2 in which the first temperature is exceeded Control the driving current supplied to the lighting device so as to suppress the temperature rise of the lighting device.

  For this reason, even when using the luminaire in an environment where heat is likely to be generated in a factory or the like, the temperature around the luminaire can be reduced more effectively and promptly. Shortening of life can be suppressed.

Fourth Embodiment
FIG. 7 is a view showing an example of a control system 10 of a luminaire according to a fourth embodiment of the present invention.

  The control system 10 of the fourth embodiment is provided with a plurality of the lighting fixtures 2, the temperature sensor 6, and the power supply 7 of the configuration of the control system 5 of the lighting fixture of the second embodiment described above. In the fourth embodiment, a combination of the lighting fixture 2, the temperature sensor 6, and the power supply 7 is also the lighting fixture set 11. The operations of the lighting fixture 2, the temperature sensor 6, the power supply 7, and the air conditioner 4 are the same as those of the second embodiment, and thus the description thereof is omitted.

  In FIG. 7, the temperature sensor 6 is directly connected to the control device 12, but may be connected to the control device 12 via the power supply 7.

  A control system 10 for a lighting fixture according to the present embodiment is configured of a plurality of lighting fixtures 2, an air conditioner 4, a plurality of temperature sensors 6, a plurality of power supplies 7, and a control device 12. The lighting fixture set 11 is a combination of the lighting fixture 2, the temperature sensor 6, and the power supply 7. The temperature sensor 6 measures the ambient temperature of the same set of luminaires 2, and the power supply 7 supplies drive current to the same set of luminaires 2.

  When the controller 12 detects that the ambient temperature of the luminaire 2 measured by the temperature sensor 6 exceeds a predetermined first temperature (for example, 50.degree. C.) while the device is in operation. The drive current supplied to the lighting device of the lighting device 2 is controlled so as to suppress the temperature rise of the lighting device 2. The controller 12 determines the drive current of the lighting device of the lighting device 2 based on the ambient temperature of the lighting device 2 which has exceeded the first temperature. The control device 12 outputs an instruction signal based on the determined drive current to the power supply 7 corresponding to the luminaire 2 whose temperature has exceeded the first temperature. The controller 12 outputs a control signal to the air conditioner 4 based on the measured ambient temperature. That is, the control device 12 controls each of the plurality of lighting fixtures sets 11 in the same manner as controlling the lighting fixtures 2, the temperature sensor 6, and the power supply 7 of the lighting fixture control system 5 of the second embodiment described above. Do.

  Next, the operation of the control system for a luminaire according to the fourth embodiment of the present invention will be described in detail with reference to FIG.

  FIG. 8 is a flowchart showing an example of the operation of the control system of the lighting fixture according to the fourth embodiment of the present invention.

  In step B1 of FIG. 8, the operation of the present system is started by, for example, the user turning on each device of the present system, etc., and the plurality of temperature sensors 6 output the temperature information of the corresponding lighting fixture 2 to the control device 12. Do.

  In step B2 of FIG. 8, the control device 12 performs the respective luminaire sets 11 of the plurality of luminaire sets 11 shown in FIG. 7 in the same manner as the operation of the luminaire control system 5 according to the second embodiment. Control in parallel. That is, the operations of step S2 of FIG. 3 to step S16 of FIG. 3 and step A1 of FIG. 4 to step A6 of FIG. 4 are controlled in parallel. However, the above description of the process of each next step (step S10, step S12, step S16 in FIG. 3, step A6 in FIG. 4) related to control of the air conditioner 4 is changed as follows. That is, the control device 3 outputs a control signal indicating the setting for stopping the operation to the air conditioner 4, and the control device 12 creates a control signal indicating the setting for stopping the operation. Then, when there is no operation currently operating based on the control signal corresponding to the other luminaire set 11, this control signal is output to the air conditioner 4, and the above is changed. Also, the control device 3 is changed to the control device 12.

  In addition, when the ambient temperature of the lighting fixture 2 exceeds a predetermined first temperature, the control device 12 illuminates the lighting device of the lighting fixture 2 having exceeded the first temperature, as shown in step S7 of FIG. On the other hand, an instruction signal based on this drive current reduced in proportion to the ambient temperature is output to the power supply 7. Then, the power source 7 is supplied with a drive current reduced in proportion to the ambient temperature to the lighting device corresponding to the lighting fixture 2. For this reason, since the illumination intensity of this lighting device becomes dark, the periphery of the lighting fixture 2 corresponding to the lighting device becomes dark. Then, in order to supplement the brightness around the darkened lighting fixture 2, it may be as follows.

  The control device 12 exceeds the first temperature near the luminaire 2 where the ambient temperature exceeds the first predetermined temperature when the ambient temperature of the luminaire 2 exceeds the first predetermined temperature. It controls to become brighter to the lighting installation of the lighting fixture 2 which is not. The control device 12 outputs an instruction signal for causing a predetermined third drive current larger than the predetermined first drive current to flow to the lighting device of the lighting fixture 2 which does not exceed the first temperature. Then, the drive current may be supplied to the lighting device corresponding to the lighting device 2 in the power source 7 corresponding to the lighting device 2. At this time, although the predetermined first drive current is the normal current (first drive current) (I1: 100%) supplied to the lighting device of the lighting fixture 2 in the normal operation in FIG. For example, the drive current of 80% is set to a drive current of 80%, and the predetermined third drive current larger than this is set to, for example, a drive current of 100% higher than the first drive current.

  Also, in order to supplement the brightness around the dimmed lighting fixture 2, the following may be performed. That is, for example, an irradiation direction changing device capable of changing the irradiation direction of the lighting device 2 is provided in the lighting device 2. The irradiation direction changing device, for example, directs the luminaire 2 in the irradiation direction by a servomotor or the like based on angle information or the like of the irradiation direction instruction signal. Then, when the ambient temperature of the luminaire 2 exceeds the first temperature, the control device 12 causes the luminaire 2 not to exceed the first temperature in the vicinity of the luminaire 2 having exceeded the first temperature. On the other hand, the irradiation direction indication signal may be output so that the irradiation direction is directed to the direction of the luminaire 2 which exceeds the first temperature.

  As described above, the fourth embodiment of the present invention is obtained by providing the lighting apparatus 2 according to the second embodiment, the temperature sensor 6 and the power supply 7 in a plurality, and therefore the fourth embodiment of the present invention is obtained by the second embodiment. In addition to the effects that can be achieved, there are the following effects. According to the fourth embodiment of the present invention, when the ambient temperature of the luminaire 2 exceeds the first temperature, the first temperature in the vicinity of the luminaire 2 which exceeds the first temperature is A predetermined third drive current larger than the predetermined first drive current is supplied to the lighting device of the lighting fixture 2 which does not exceed the current. For this reason, it is possible to supplement the brightness around the luminaire 2 that has exceeded the darkened first temperature. In addition, when the ambient temperature of the luminaire 2 exceeds the first temperature, the irradiation direction of the luminaire 2 not exceeding the first temperature in the vicinity of the luminaire 2 which exceeds the first temperature is set to the first It is directed to the direction of the luminaire 2 which has exceeded its temperature. For this reason, it is possible to supplement the brightness around the luminaire 2 that has exceeded the darkened first temperature.

Fifth Embodiment
FIG. 9 is a view showing an example of a control system 13 of a luminaire according to a fifth embodiment of the present invention.

  A control system 13 of a lighting device according to the present embodiment is configured of a plurality of lighting device sets 11, a plurality of control devices 14, an air conditioner 4, and a host device 15.

  Each of the plurality of luminaire sets 11 includes the luminaire 2 provided with a luminaire including one or more LEDs or the like that emit light based on the supply of the drive current. The power source 7 measures the ambient temperature of the lighting apparatus 2 by the temperature sensor 6, receives an instruction signal indicating the magnitude of the driving current from the control device 14, and the lighting apparatus includes the driving current based on the instruction signal. Supply to When the ambient temperature of the luminaire 2 measured by the corresponding luminaire set 11 is transmitted by the temperature sensor 6, the controller 14 of each of the plurality of controllers 14 responds to the transmission and measures the magnitude of the drive current. In response to the current indication command shown, the indication signal corresponding to the current indication command is output to the lighting fixture set 11. The air conditioner 4 air-conditions the installation place of the lighting fixture 2 provided with the plurality of lighting fixture sets 11 based on the control signal. The host device 15 receives the ambient temperature of the lighting apparatus 2 from the plurality of control devices 14 respectively. Then, when the host device 15 receives an ambient temperature exceeding a predetermined first temperature, the host device 15 suppresses an increase in the temperature of the lighting device 2 of the lighting device set 11 exceeding the first temperature, The magnitude of the drive current supplied to the lighting device provided in the lighting device 2 is determined. Then, a current instruction command indicating the magnitude of the drive current is transmitted to the corresponding control device 14, and a control signal is output to the air conditioner 4 to control the air conditioner 4.

  Although the temperature sensor 6 is directly connected to the control device 14 in FIG. 9, the temperature sensor 6 may be connected to the control device 14 via the power supply 7.

  The predetermined first temperature is, for example, 50 ° C., and is a temperature that may shorten the life of the lighting device if the operation is continued beyond this temperature. This temperature may be changed as appropriate depending on the luminaire 2 to be used, the luminaire and the environment to be used without sticking to 50 ° C.

  During operation of the system, the lighting device emits light to illuminate the surroundings. The lighting device generates heat by emitting light. Then, each control device 14 constantly checks, for example, the ambient temperature of the luminaire 2 measured by the corresponding luminaire set 11, and transmits information indicating the ambient temperature to the host device 15. The host device 15 receives information indicating the ambient temperature of the lighting apparatus 2 from the plurality of control devices 14 respectively. Then, when the information indicating the ambient temperature exceeding the predetermined first temperature is received, the lighting is performed so as to suppress the temperature increase of the lighting fixture 2 of the lighting fixture set 11 exceeding the first temperature. The magnitude of the drive current supplied to the lighting device provided in the fixture 2 is determined. For example, the heat generation of the lighting device is suppressed by reducing the drive current supplied to the lighting device provided in the lighting device 2 or the like. Furthermore, the control signal is output to the air conditioner 4 to control the air volume and temperature of the wind blown by the air conditioner 4 to perform the air conditioning at the installation place of the lighting fixture 2, thereby covering the installation place of the lighting fixture Release the heat.

  As described above, according to the fifth embodiment of the present invention, when the ambient temperature of the lighting apparatus 2 exceeds the first temperature, the lighting apparatus is configured to suppress an increase in the temperature of the lighting apparatus 2. Control the drive current supplied. Furthermore, the air conditioner 4 is controlled to air-condition the installation place of the lighting fixture 2.

  For this reason, even when using the luminaire in an environment where heat is easily accumulated in a factory or the like, the temperature around the luminaire can be reduced more effectively and quickly, so the short life of the luminaire used in the luminaire Can be suppressed.

Some or all of the above embodiments may be described as in the following appendices, but is not limited to the following.
(Supplementary Note 1)
A luminaire comprising one or more luminaires that emit light based on the supply of power;
Based on the ambient temperature of the luminaire, control is performed to reduce the drive current supplied to the luminaire when the ambient temperature of the luminaire exceeds a predetermined first temperature during operation of its own device And a control device that controls an air environment including an air volume and temperature around the luminaire so that the ambient temperature of the luminaire decreases.
The control system of the lighting fixture characterized by having.
(Supplementary Note 2)
A temperature sensor that measures the ambient temperature of the lighting device;
A power supply for supplying the drive current to the lighting device based on an instruction signal;
An air conditioner for adjusting the air environment at the installation place of the lighting apparatus based on a control signal;
The lighting device includes a light emitting diode that emits light based on the supply of a drive current and generates heat as light is emitted.
The control device determines the drive current of the lighting device based on the ambient temperature measured by the temperature sensor, outputs the instruction signal based on the drive current to the power supply, and measures the ambient. Outputting the control signal to the air conditioner based on temperature;
The control system of the lighting fixtures according to claim 1 characterized by things.
(Supplementary Note 3)
The control device is configured to operate the control signal to operate the air conditioner at a predetermined setting including an air volume and a temperature when the ambient temperature of the lighting apparatus exceeds the predetermined first temperature. Output to device
The control system of the lighting fixtures according to supplementary note 2 characterized by things.
(Supplementary Note 4)
The control device is configured to reduce the driving current supplied to the lighting device in proportion to the increase in the ambient temperature when the ambient temperature of the lighting device exceeds the first predetermined temperature. Output a signal to the power supply,
The control system of the lighting fixture according to Additional remark 2 or 3, characterized in that.
(Supplementary Note 5)
When the ambient temperature of the lighting apparatus at the start of operation of its own device is equal to or higher than a predetermined second temperature lower than the predetermined first temperature and equal to or lower than the predetermined first temperature, the control device Outputting the instruction signal for causing a predetermined first drive current to flow to the power supply;
The control system of the lighting fixtures according to claim 4 characterized by things.
(Supplementary Note 6)
When the ambient temperature of the lighting device at the start of operation of its own device is lower than the predetermined second temperature or exceeds the predetermined first temperature, the control device may drive the predetermined first drive. Outputting the instruction signal for causing a predetermined second drive current lower than the current to the power supply;
The control system of the lighting fixtures according to claim 5 characterized by things.
(Appendix 7)
A luminaire comprising one or more luminaires that emit light based on the supply of power;
When the ambient temperature of the luminaire exceeds a predetermined first temperature during operation of its own device, the luminaire is provided based on the ambient temperature of the luminaire above the predetermined first temperature. A control device that controls so as to reduce a driving current supplied and controls an air environment including an air volume and temperature around the luminaire so that the ambient temperature of the luminaire decreases;
The control system of the lighting fixture characterized by having.
(Supplementary Note 8)
The lighting device includes a light emitting diode that emits light based on the supply of a drive current and generates heat as light is emitted.
A plurality of temperature sensors each measuring an ambient temperature of the plurality of lighting fixtures;
A plurality of power supplies for respectively supplying the drive current to the lighting devices of the plurality of lighting devices based on an instruction signal;
An air conditioner for adjusting the air environment at the installation place of the lighting apparatus based on a control signal;
The control device determines the driving current of the lighting device provided in the lighting fixture corresponding to the temperature sensor based on the ambient temperature measured by the temperature sensor, and the instruction based on the driving current Outputting a signal to the power supply corresponding to the temperature sensor and outputting the control signal to the air conditioner based on the measured ambient temperature;
The control system of the lighting fixtures according to claim 7 characterized by things.
(Appendix 9)
The control device is configured to control the air conditioner to operate in a predetermined amount including an air volume and a temperature when one or more of the ambient temperatures of the plurality of lighting devices exceeds the first predetermined temperature. Outputting the control signal to operate in setting to the air conditioner;
The control system of the lighting fixtures according to appendix 8.
(Supplementary Note 10)
The control device is configured to perform the illumination above the predetermined first temperature when the ambient temperature of one or more of the ambient temperatures of each of the plurality of lighting devices exceeds the predetermined first temperature. Outputting the indication signal to the power supply corresponding to the luminaire so as to reduce the drive current supplied to the luminaire equipped in the appliance in proportion to the increase of the ambient temperature;
The control system of the luminaire according to any one of appendices 8 or 9, characterized in that
(Supplementary Note 11)
At the start of operation of the device, the control device sets a predetermined second temperature lower than the predetermined first temperature and higher than the predetermined second temperature among ambient temperatures of the plurality of lighting devices. Outputting the instruction signal for causing a predetermined first drive current to flow to the power supply corresponding to the temperature sensor indicating an ambient temperature not higher than 1;
The control system of the luminaire as claimed in claim 10, characterized in that
(Supplementary Note 12)
The control device is configured to, when starting operation of its own device, an ambient temperature that is less than the predetermined second temperature or exceeds the predetermined first temperature among ambient temperatures of the plurality of lighting fixtures Outputting the instruction signal for causing a predetermined second drive current lower than the predetermined first drive current to flow to the power supply corresponding to the temperature sensor indicating
The control system of the lighting fixtures according to appendix 11.
(Supplementary Note 13)
The control device does not exceed the predetermined first temperature when the ambient temperature of one or more of the ambient temperatures of each of the plurality of lighting devices exceeds the predetermined first temperature. The instruction signal for causing a predetermined third driving current larger than the predetermined first driving current to the lighting device provided in the lighting device to the lighting device not exceeding the predetermined first temperature Output to the corresponding power supply,
The control system of the lighting fixtures according to appendix 11.
(Supplementary Note 14)
The luminaire can change the irradiation direction based on the irradiation direction indication signal,
The controller directs the radiation direction indication signal to direct the radiation direction of the luminaire not exceeding the predetermined first temperature in the direction of the luminaire exceeding the first predetermined temperature. Output to lighting equipment,
The control system of the luminaire according to appendix 13, characterized in that.
(Supplementary Note 15)
A luminaire equipped with one or more luminaires that emit light based on the supply of drive current, measuring the ambient temperature of the luminaire, receiving an indication signal indicating the magnitude of the drive current, the indication signal A plurality of luminaire sets for supplying a driving current based on the light to the luminaire provided in the luminaire;
The information indicating the measured ambient temperature of the lighting fixture corresponding to the lighting fixture set is transmitted, and in response to the transmission, the current indicating command indicating the magnitude of the driving current is received, and the indicating signal corresponding to the current indicating command A plurality of control devices that output the corresponding lighting fixture set;
An air conditioner for adjusting an air environment including an air volume and a temperature of an installation place of the luminaire provided in the plurality of luminaire sets based on a control signal;
The illumination above the first temperature when the information indicating the ambient temperature of the lighting apparatus is received from the plurality of control devices and the information indicating the ambient temperature above the predetermined first temperature is received. It is determined to reduce the drive current supplied to the lighting device provided in the lighting fixture of the fixture set, and a current indication command indicating the determined magnitude of the drive current is transmitted to the corresponding control device. A host device that outputs a control signal to the air conditioner to control the air conditioner to reduce the ambient temperature of the lighting device;
The control system of the lighting fixture characterized by having.
(Supplementary Note 16)
Check the ambient temperature of the luminaire with one or more luminaires that emit light based on the power supply,
When the ambient temperature exceeds a first predetermined temperature, control is performed to reduce a drive current supplied to the lighting device based on the ambient temperature of the lighting device.
Control the air environment including the air volume and temperature around the luminaire so that the ambient temperature of the luminaire decreases.
The control method of the lighting fixture characterized by the above.
(Supplementary Note 17)
The lighting device includes a light emitting diode that emits light based on the supply of a drive current and generates heat as light is emitted.
Determining the drive current of the lighting device based on the ambient temperature of the lighting device;
Supplying the drive current to the lighting device
The control method of the lighting fixture of additional remarks characterized by the above-mentioned.
(Appendix 18)
When the ambient temperature of the lighting device exceeds the first predetermined temperature, the drive device is supplied to the lighting device so as to decrease in proportion to an increase in the ambient temperature. The control method of the lighting fixtures of 17 statement.
(Appendix 19)
Check the ambient temperature of multiple luminaires with one or more luminaires that emit light based on the power supply,
When the ambient temperature exceeds a predetermined first temperature, control is performed to reduce the drive current supplied to the lighting device based on the ambient temperature of the lighting device exceeding the predetermined first temperature And
Based on the ambient temperature of the luminaire, an air environment including a volume of air around the luminaire and a temperature is controlled so that the ambient temperature of the luminaire decreases.
The control method of the lighting fixture characterized by the above.
(Supplementary Note 20)
The lighting device includes a light emitting diode that emits light based on the supply of a drive current and generates heat as light is emitted.
Determining the drive current of the lighting device provided in the lighting device corresponding to the ambient temperature based on the ambient temperature of each of the plurality of lighting devices;
These drive currents are respectively supplied to the lighting devices provided in the lighting fixture corresponding to the ambient temperature.
The control method of the lighting fixture of additional remarks characterized by the above-mentioned.
(Supplementary Note 21)
The luminaire is provided with the luminaire not exceeding the first predetermined temperature when the ambient temperature of one or more of the ambient temperatures of each of the plurality of luminaires exceeds the first predetermined temperature. Supplying a predetermined drive current larger than the drive current which has been supplied so far to the lighting device;
24. The control method of the lighting fixture according to appendix 20.
(Supplementary Note 22)
The luminaire can change the irradiation direction based on the irradiation direction indication signal,
Outputting the radiation direction indication signal to the lighting device so as to direct the radiation direction of the lighting device not exceeding the predetermined first temperature to the direction of the lighting device exceeding the predetermined first temperature ,
24. A control method of the lighting fixture according to appendix 21.

  The present invention has been described above with reference to the embodiments (and examples), but the present invention is not limited to the above embodiments (and examples). The configurations and details of the present invention can be modified in various ways that can be understood by those skilled in the art within the scope of the present invention.

  This application claims priority based on Japanese Patent Application No. 2013-239978 filed on November 20, 2013, the entire disclosure of which is incorporated herein.

1, 5, 8, 10, 13 Lighting fixture control system 2 Lighting fixture 3, 9, 12, 14 Control equipment 4 Air conditioner 6 Temperature sensor 7 Power supply 11 Lighting fixture set 15 Host equipment

Claims (9)

A luminaire comprising one or more luminaires that emit light based on the supply of power;
Based on the ambient temperature of the luminaire, control is performed to reduce the drive current supplied to the luminaire when the ambient temperature of the luminaire exceeds a predetermined first temperature during operation of its own device And a control device that controls an air environment including an air volume and temperature around the luminaire so that the ambient temperature of the luminaire decreases.
A power supply for supplying the drive current to the lighting device based on an instruction signal;
Equipped with
The control device is configured to reduce the driving current supplied to the lighting device in proportion to the increase in the ambient temperature when the ambient temperature of the lighting device exceeds the first predetermined temperature. Output a signal to the power supply,
The control system of the lighting fixture characterized by the above. A temperature sensor that measures the ambient temperature of the lighting device ;
An air conditioner for adjusting the air environment at the installation place of the lighting apparatus based on a control signal;
The lighting device includes a light emitting diode that emits light based on the supply of a drive current and generates heat as light is emitted.
The control device determines the drive current of the lighting device based on the ambient temperature measured by the temperature sensor, outputs the instruction signal based on the drive current to the power supply, and measures the ambient. Outputting the control signal to the air conditioner based on temperature;
The control system of the luminaire according to claim 1, characterized in that: The control device is configured to operate the control signal to operate the air conditioner at a predetermined setting including an air volume and a temperature when the ambient temperature of the lighting apparatus exceeds the predetermined first temperature. Output to device
The control system of the lighting fixture of Claim 2 characterized by the above-mentioned. When the ambient temperature of the lighting apparatus at the start of operation of its own device is equal to or higher than a predetermined second temperature lower than the predetermined first temperature and equal to or lower than the predetermined first temperature, the control device Outputting the instruction signal for causing a predetermined first drive current to flow to the power supply;
The control system of the luminaire according to claim 3 , characterized in that. When the ambient temperature of the lighting device at the start of operation of its own device is lower than the predetermined second temperature or exceeds the predetermined first temperature, the control device may drive the predetermined first drive. Outputting the instruction signal for causing a predetermined second drive current lower than the current to the power supply;
The control system of the luminaire according to claim 4 , characterized in that. A luminaire comprising one or more luminaires that emit light based on the supply of power;
When the ambient temperature of the luminaire exceeds a predetermined first temperature during operation of its own device, the luminaire is provided based on the ambient temperature of the luminaire above the predetermined first temperature. air volume around the luminaire to control to reduce the drive current supplied, along with the ambient temperature of the luminaire air environment containing the temperature is controlled so as to reduce
A controller for controlling the lighting device of the luminaire not exceeding the first temperature to be brighter in the vicinity of the luminaire where the ambient temperature exceeds the first predetermined temperature ;
The control system of the lighting fixture characterized by having. A luminaire equipped with one or more luminaires that emit light based on the supply of drive current, measuring the ambient temperature of the luminaire, receiving an indication signal indicating the magnitude of the drive current, and A plurality of luminaire sets for supplying a driving current based on the light to the luminaire provided in the luminaire;
The information indicating the measured ambient temperature of the lighting fixture corresponding to the lighting fixture set is transmitted, and in response to the transmission, the current indicating command indicating the magnitude of the driving current is received, and the indicating signal corresponding to the current indicating command A plurality of control devices that output the corresponding lighting fixture set;
An air conditioner for adjusting an air environment including an air volume and a temperature of an installation place of the luminaire provided in the plurality of luminaire sets based on a control signal;
The illumination above the first temperature when the information indicating the ambient temperature of the lighting apparatus is received from the plurality of control devices and the information indicating the ambient temperature above the predetermined first temperature is received. It is determined to reduce the drive current supplied to the lighting device provided in the lighting fixture of the fixture set, and a current indication command indicating the determined magnitude of the drive current is transmitted to the corresponding control device. A host device that outputs a control signal to the air conditioner to control the air conditioner to reduce the ambient temperature of the lighting device;
The control system of the lighting fixture characterized by having. Check the ambient temperature of the luminaire with one or more luminaires that emit light based on the power supply,
When the ambient temperature exceeds a first predetermined temperature, control is performed to reduce a drive current supplied to the lighting device based on the ambient temperature of the lighting device.
Air volume around the luminaire, with ambient temperature of the luminaire air environment containing the temperature is controlled so as to reduce
Control to be brighter to a lighting device of a lighting fixture not exceeding the first temperature in the vicinity of the lighting fixture whose ambient temperature exceeds the predetermined first temperature ,
The control method of the lighting fixture characterized by the above. Check the ambient temperature of multiple luminaires with one or more luminaires that emit light based on the power supply,
When the ambient temperature exceeds a predetermined first temperature, control is performed to reduce the drive current supplied to the lighting device based on the ambient temperature of the lighting device exceeding the predetermined first temperature And
Based on the ambient temperature of the luminaire, the air volume around the luminaire, with ambient temperature of the luminaire air environment containing the temperature is controlled so as to reduce
Control to be brighter to a lighting device of a lighting fixture not exceeding the first temperature in the vicinity of the lighting fixture whose ambient temperature exceeds the predetermined first temperature ,
The control method of the lighting fixture characterized by the above.

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