JP2011003310A - Light source lighting device, illumination device, and illumination system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to provide various settings for each lighting fixture without the need of a device for exclusive use, and irrespective of a distance between the lighting fixture and a user, in a lighting fixture with an illuminance sensor mounted.SOLUTION: An output control section 7 of a lighting device 3, controls a lighting circuit section 6 in accordance with a light-control command value from an operation control section 8 to control an output (a light-control ratio) of a light source 4. The operation control section 8 outputs the light-control command value to the output control section 7 so as a signal level (a sensor voltage) of an output signal of an illuminance sensor 5 to be a predetermined value and to carry out feedback control of the supply power to the light source 4. And also, the operation control section 8 determines increase and decrease of the sensor voltage of the illuminance sensor 5. In case of a predetermined increase and decrease pattern occurring, the operation control section 8 switches the operation mode to output a light-control command value to the output control section 7 in accordance with the operation mode.

Description

  The present invention relates to a light source lighting device, a lighting device, and a lighting system capable of various settings of illumination light.

  2. Description of the Related Art Currently, lighting fixtures that light a light source such as a discharge lamp are widely used for the purpose of energy saving, in which the light output of the light source can be adjusted using external light. This kind of lighting fixture has a built-in illuminance sensor that detects the ambient illuminance, suppresses the light output of the light source when there is external light, and rated the light output of the light source when there is no external light. It has a function of adjusting the light output of the light source according to the ambient illuminance. When setting functions or the like in such a lighting fixture, for example, setting a target level to be compared with the detection signal of the illuminance sensor, setting a dimming level if it is capable of step dimming, etc. It was mainly done by operating switches. There is also a so-called remote control lighting device in which means for performing various settings are separated from the apparatus main body.

  However, when a switch is provided for various settings, the frequency of use is considerably low, but the cost for the entire parts of the luminaire is large, and it takes time and effort to remove the cover of the luminaire. End up. The same applies to the case where a remote control device is provided, and it does not take the effort to remove the cover, but the cost of the entire parts of the lighting fixture becomes very large, and the lighting device becomes large because the remote control device is provided.

  On the other hand, for example, there has been proposed a configuration in which various settings are made by using a power switch and performing power ON / OFF input different from the case of normal input (see Patent Document 1). In addition, when the built-in illuminance sensor is used, the detection input of the illuminance sensor is operated using a flashlight or spotlight, and a pattern indicating whether the detection level exceeds or falls below a predetermined threshold is input in normal use There have been proposed ones in which various settings are made by detecting with a different pattern (see Patent Document 2). In such a conventional technique, a dedicated switch or a remote control device is not required, and it is possible to reduce the cost of components and improve the design.

JP-A-11-233271 JP 2001-338775 A

  However, in the case of performing various settings using a power switch, there is a problem in that the settings of a plurality of lighting fixtures connected to the same power switch are changed simultaneously. In addition, when using the illuminance sensor to determine the detection input pattern based on whether the detection level is above or below the threshold, the flashlight or spotlight light does not reach the illuminance sensor when the ceiling is high, and cannot be set There is. In addition, when using an illuminance sensor, there is a problem that it cannot be set by a device that cannot output very strong light, such as a camera light for a mobile phone.

  The present invention has been made in view of the above circumstances, and does not require a dedicated device in a lighting fixture equipped with an illuminance sensor, and various settings are made for each lighting fixture regardless of the distance between the lighting fixture and the user. An object of the present invention is to provide a light source lighting device, a lighting device, and a lighting system capable of performing the above.

  The present invention provides a lighting circuit unit that supplies power to a light source to light it, a sensor unit that outputs a signal according to brightness, and the lighting so that the signal level of the output signal of the sensor unit becomes a predetermined value. Provided is a light source lighting device including a lighting control unit that performs feedback control of power supplied from a circuit unit to a light source and switches an operation state when a signal level of an output signal of the sensor unit has a predetermined increase / decrease pattern .

  Moreover, this invention is said light source lighting device, Comprising: The said lighting control part contains what uses the pattern of a period faster than the response speed of the said feedback control as said predetermined increase / decrease pattern.

  Further, the present invention is the above-described light source lighting device, wherein the lighting control unit includes the predetermined increase / decrease pattern including at least one of an increase and a decrease in a time interval within a predetermined range, a predetermined number of times Including those using the pattern.

  Further, the present invention is the light source lighting device described above, wherein the lighting control unit counts the number of times of increase / decrease when the signal level of the output signal includes at least one of an increase and a decrease in a time interval within a predetermined range. In addition, it is determined that the predetermined increase / decrease pattern has occurred when the increase / decrease count reaches a predetermined count.

  Further, the present invention is the light source lighting device described above, wherein the lighting control unit sets a peak value that is changed from increasing to decreasing or decreasing to increasing when the number of increase / decrease is counted for the signal level of the output signal. And determining the number of times of increase / decrease when the peak value is in a peak range having a predetermined width.

  Further, the present invention is the light source lighting device described above, further comprising a power source detection unit that detects an ON / OFF state of a power source, wherein the lighting control unit satisfies a predetermined reset condition in an output signal of the power source detection unit Including those that reset the operating state in the event of a failure.

  Moreover, this invention provides the illuminating device provided with said light source lighting device.

  Further, the present invention comprises a plurality of the above lighting devices, has a communication path for inputting and outputting the output signal of the sensor unit of the light source lighting device between the plurality of lighting devices, the lighting control unit of each light source lighting device, Compare the output signal of the sensor unit of its own light source lighting device with the output signal of the sensor unit of another light source lighting device, the signal level of the output signal of its own sensor unit is greater than the others, and the output signal of the sensor unit Provided is an illumination system that switches the operating state when the signal level becomes a predetermined increase / decrease pattern.

  With the above configuration, a dedicated device is not required to switch the operation state, and various settings can be performed for each lighting fixture regardless of the distance between the lighting fixture and the user.

  According to the present invention, in a lighting fixture equipped with an illuminance sensor, a dedicated device is not required, and the light source lighting capable of performing various settings for each lighting fixture regardless of the distance between the lighting fixture and the user An apparatus, a luminaire, and a lighting system can be provided.

The block diagram which shows the internal structure of the illuminating device which concerns on embodiment of this invention. The schematic diagram which shows the arrangement configuration of the illuminating device which concerns on this embodiment. Operation explanatory diagram showing an example of a sensor signal (sensor voltage) and a corresponding increase / decrease determination value of the illuminance sensor in the present embodiment Operation explanatory diagram showing a first example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease frequency in the first embodiment Operation explanatory diagram showing a second example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease frequency in the first embodiment Operation explanatory diagram showing an operation example when switching the operation mode Operation explanatory diagram showing an example of sensor voltage, increase / decrease determination value, and count value of the increase / decrease number when an instruction operation for switching the operation mode is performed Operation explanatory diagram showing examples of sensor voltage, increase / decrease determination value, and count value of increase / decrease frequency in lighting fixtures laid on a high ceiling The block diagram which shows the structure of the modification which has arrange | positioned the illumination intensity sensor separately Operation explanatory diagram showing a first example of sensor voltage, increase / decrease determination value, and count value of the increase / decrease frequency in the second embodiment Operation explanatory diagram showing a second example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease frequency in the second embodiment Operation explanatory diagram showing a first example of sensor voltage, increase / decrease determination value, and count value of increase / decrease frequency in the third embodiment Operation explanatory diagram showing a second example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease frequency in the third embodiment The block diagram which shows the structure of the illuminating device which concerns on 4th Embodiment. Operation explanatory diagram showing a first example of the power ON / OFF state and the power ON count value in the fourth embodiment Operation explanatory diagram showing a second example of the power ON / OFF state and the count value of the number of times of power ON in the fourth embodiment Operation explanatory diagram showing a third example of the power ON / OFF state and the power ON count value in the fourth embodiment The block diagram which shows the structure of the illumination system which concerns on 5th Embodiment. Operation | movement explanatory drawing which shows the example of the sensor voltage in the some lighting fixture in 5th Embodiment

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

(First embodiment)
FIG. 1 is a block diagram illustrating an internal configuration of a lighting device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram illustrating an arrangement configuration of the lighting device according to the present embodiment.

  The lighting fixture 100 which comprises the illuminating device of this embodiment is provided with the lighting device 3, the light source 4, and the illumination intensity sensor 5, as shown in FIG. For example, as shown in FIG. 2, the lighting apparatus 100 is attached to a ceiling 110 such as an office or a house. In the lighting fixture 100a shown in the configuration example on the left side of FIG. 2, a fixture body in which a plurality of light sources 4 are arranged is attached to a ceiling 110, and an illuminance sensor 5 is arranged in the center of the plurality of light sources 4. In the lighting fixture 100b shown in the configuration example on the right side of FIG. 2, the fixture body having the light source 4 arranged at the center is attached to the ceiling 110, and the illuminance sensor 5 is arranged in the vicinity of the light source 4. The illuminance sensor 5 outputs a voltage value (sensor voltage) of an analog signal corresponding to the brightness around the lighting fixture. These lighting fixtures 100a and 100b are provided with the lighting device 3 inside.

  As shown in FIG. 1, the lighting device 3 is supplied with power from a commercial power source AC via a power line 2 from a wall switch 1 that is an example of a power switch. The wall switch 1 also serves as a lighting switch. The lighting device 3 includes, for example, a lighting circuit unit 6 that supplies power to a light source 4 such as a discharge lamp to light it, an output control unit 7 that controls output of light emission power from the lighting circuit unit 6 to the light source 4, An operation control unit 8 that outputs a dimming command value to the output control unit 7 according to the operation mode, and a storage unit 9 that stores the operation mode and the like are configured.

  The illuminance sensor 5 has a function as a sensor unit, and outputs a sensor voltage corresponding to the brightness around the lighting fixture. The sensor voltage output from the illuminance sensor 5 is input to the operation control unit 8 of the lighting device 3. The operation control unit 8 is constituted by, for example, a microcomputer, and outputs a dimming command value to the output control unit 7 so that the signal level of the output signal of the illuminance sensor 5 becomes a predetermined value. Feedback control of the supplied power. When the operation control unit 8 receives an output signal of a predetermined increase / decrease pattern from the illuminance sensor 5, the operation control unit 8 sets and switches the operation mode to change the operation state, and the output control unit 7 according to the operation mode. Output the dimming command value. The output control unit 7 controls the lighting circuit unit 6 according to the dimming command value from the operation control unit 8 and controls the output (dimming ratio) of the light source 4. The storage unit 9 is configured by, for example, a nonvolatile semiconductor storage device such as an EEPROM or a flash memory, and stores setting information such as an operation mode. Here, the output control unit 7, the operation control unit 8, and the storage unit 9 realize the function of the lighting control unit.

  The operation mode indicates a normally used mode such as full lighting, dimming lighting, dimming level control lighting according to the cumulative lighting time of the light source, and constant brightness control. The constant brightness control is a lighting control method that is now generally used. In the constant brightness control, for example, a sensor signal (sensor voltage) that is an output signal from the illuminance sensor 5 is read at an interval of 1 second, for example, an average value for 1 minute (60 times), and a target illuminance value stored in the storage unit 9. And the dimming command value to the output control unit 7 is feedback-controlled so that the sensor signal becomes constant at the target illuminance. Further, as the predetermined increase / decrease pattern, for example, when the sensor voltage includes at least one of an increase and decrease of a time interval within a predetermined range, the increase / decrease number is counted, and the pattern when the increase / decrease number reaches the predetermined number is used. It is determined that a predetermined increase / decrease pattern has occurred.

  Next, the operation of this embodiment will be described. FIG. 3 is an operation explanatory diagram illustrating an example of a sensor signal (sensor voltage) and a corresponding increase / decrease determination value of the illuminance sensor in this embodiment, and FIG. 4 is a count of the sensor voltage, the increase / decrease determination value, and the increase / decrease number in the first embodiment. FIG. 5 is an operation explanatory diagram illustrating a second example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease number in the first embodiment.

  The operation control unit 8 reads the sensor signal (sensor voltage) from the illuminance sensor 5 at predetermined time intervals (for example, every 5 msec) as indicated by “↑” in FIG. 3, for example, and whether the value of the sensor signal has increased. A parameter indicating whether the value has decreased is set as an increase / decrease determination value. Here, if the read value is larger than the previous read value, the increase / decrease determination value is increased (+), and if the read value is smaller than the previous read value, the increase / decrease determination value is determined to be decreased (−). However, if the read value is the same as the previous read value, the increase / decrease determination value is the same as the previous read value. Hereinafter, the time during which the increase / decrease determination value continues to increase is described as + time (increase time), and the time during which the decrease continues is described as −time (decrease time).

As shown in the first example of FIG. 4, the operation control unit 8 a predetermined range of + time _{(T1 ≦ T + ≦ T2)} - time _- when it detects (T1 ≦ T ≦ T2) in a continuous, i.e., sensor When the increase time and the decrease time in the period of T1 or more and T2 or less in the voltage are continuously detected, it is determined that the increase / decrease condition for switching the operation mode is satisfied, and the number of increase / decrease is one. When the + time and -time within this predetermined range are continuously detected, the number of increase / decrease is incremented as follows: increase / decrease number 1 time → 2 times → 3 times →. For example, when + time and -time within a predetermined range are continuously detected a predetermined number of times (here, 3 times), and the number of increase / decrease times is 3, + time longer than the predetermined range, or -time (T ₊ , T _-> if it detects a T2), it determines that the operation mode switching condition is satisfied, switches the operation mode.

As shown in the second example of FIG. 5, when + time or −time is long and T ₊ , T ₋ > T2, or when + time or −time is short and T ₊ , T ₋ <T1 is satisfied. If this happens, reset the increase / decrease count to zero.

  When the sensor signal is intentionally operated to switch the operation mode to instruct the above increase / decrease conditions, if the brightness of the light source changes due to constant brightness control, the sensor signal changes due to the change in the light. Resulting in. Therefore, T1 and T2, which define the predetermined range, are set to a time shorter than the reading period of constant brightness control (1 minute in the example of the present embodiment) so that the brightness of the light source does not change due to constant brightness control. Keep it. For example, T1 = 1.0 sec and T2 = 2.0 sec. That is, the operation mode is switched by an increase / decrease pattern having a faster cycle pattern than the response speed of the feedback control of the power supplied to the light source by the sensor signal of the illuminance sensor.

  Switching the operation mode is to lower the dimming ratio, turn off the light, disable constant brightness control, or reset the cumulative lighting time. For example, if the operation control unit 8 detects the number of increase / decrease times = 3, it outputs a turn-off signal to the output control unit 7 to turn off the light source, and outputs a turn-on signal if the number of increase / decrease times = 3 is detected when the light is turned off. Then turn on the light source. Also, the type of operation mode switching is assigned according to the number of increase / decrease times. If the number of increase / decrease times is 6, the dimming ratio is switched, and if the number of increase / decrease times is 9, the brightness constant control is enabled / disabled.

  FIG. 6 is an operation explanatory diagram showing an operation example when switching the operation mode, and FIG. 7 shows an example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease number when the operation operation for switching the operation mode is performed. It is operation | movement explanatory drawing. As shown in FIG. 6, the actual operation uses a light emitting device 120 such as a general flashlight or penlight, and repeats irradiation and non-irradiation of the instruction light 121 toward the lighting device 100. The sensor voltage output from the illuminance sensor 5 is increased or decreased by irradiation or non-irradiation of the instruction light 121. When irradiation and non-irradiation are repeated three times so that the predetermined time T1 to T2 becomes + time and -time, and then irradiation is performed for a length longer than T2, the change in sensor voltage at that time changes as shown in FIG. . In this case, the number of times of increase / decrease is 3, and the operation mode is switched to turn off / on. At this time, the operation control unit 8 outputs a dimming command value to the output control unit 7 according to switching of the operation mode, and the output control unit 7 performs output control according to the dimming command value to the lighting circuit unit 6. The light source 4 is turned on or off.

  FIG. 8 is an operation explanatory diagram illustrating an example of a sensor voltage, an increase / decrease determination value, and a count value of the increase / decrease frequency in a lighting fixture laid on a high ceiling. When the same operation is performed on a lighting fixture laid on a high ceiling with the same flashlight or penlight as in the examples shown in FIGS. 6 and 7, the sensor signal changes as shown in FIG. In this case, although the amount of change in the sensor signal is small, the number of increase / decrease times is three as in the case of FIG. By doing this, it is possible to switch the operation mode such as turning off → lighting, turning on → turning off, etc. for each lighting device using a light emitting device such as a flashlight. Moreover, it becomes possible to change the operation mode of a lighting fixture regardless of the distance between the user and the lighting fixture or the light emitting fixture, such as when the ceiling is high or when operating with a light emitting fixture that cannot output strong light. As a result, for example, when the user tried to perform thinning lighting for energy saving, it was conventionally necessary to remove the load of the light source one by one. Thinning-out lighting can be executed.

  FIG. 9 is a configuration diagram showing a configuration of a modified example in which the illuminance sensor is arranged separately. As in the example of FIG. 9, the illuminance sensor may be a separate type in which the luminaire 100 c and the illuminance sensor 5 are arranged separately, instead of the fixture-integrated type.

  In the above embodiment, the number of times of increase / decrease is incremented when the sensor signal is increased / decreased by irradiating light with a flashlight or the like, and + time and −time of a predetermined range are continuously detected. Variations are possible. For example, the sensor signal may be increased or decreased by covering the illuminance sensor unit, and the detection order may be + time → −time or −time → + time.

  In addition, the increase / decrease determination value is determined every predetermined interval (for example, every 5 msec). However, since noise may be superimposed on the illuminance sensor due to an external factor, the sensor signal of the illuminance sensor acquired every predetermined interval is twice. The increase / decrease determination value may be determined when continuously increasing or decreasing.

(Second Embodiment)
The second embodiment is different from the first embodiment in the increase / decrease conditions of the sensor signal of the illuminance sensor for switching the operation mode. Since other operations and the configuration of the illumination device are the same as those in the first embodiment, the description thereof is omitted.

  FIG. 10 is an operation explanatory diagram illustrating a first example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease number in the second embodiment, and FIG. 11 illustrates the sensor voltage, the increase / decrease determination value, and the increase / decrease number in the second embodiment. It is operation | movement explanatory drawing which shows the 2nd example of a count value.

As shown in the first example of FIG. 10, when the number of times of increase / decrease is 0, the operation control unit 8 detects an increase / decrease condition for switching the operation mode when a predetermined range of + time (T1 ≦ T ₊ ≦ T2) is detected. Is determined, and the number of increase / decrease is one. When increasing or decreasing the number of 3 times, a long + time than the predetermined range, or, - the time _{(T +, T -> T2} ) if it detects, it determines that the operation mode switching condition is satisfied, switches the operation mode . Also, + time or - a long _time, T _{+, T} -> when a T2, resets the decreasing number, and increase or decrease the number zero. + Time or - less time, T _{+, T} - <If a _T1, increase or decrease the number of holds the current value.

  As shown in the second example of FIG. 11, when the sensor signal decreases when the increase / decrease count is 0, the count of the increase / decrease count is determined by -time. The following is the same as the example of FIG.

  According to the second embodiment, when the number of increases / decreases reaches a predetermined number, the operation mode is switched unless the operation is performed as it is, and the operation mode can be switched with fewer operations.

(Third embodiment)
In the first and second embodiments, the third embodiment is provided with a limit on the count of the number of increase / decrease of the sensor signal of the illuminance sensor for switching the operation mode. Since other operations and the configuration of the illumination device are the same as those in the first embodiment, the description thereof is omitted.

  FIG. 12 is an operation explanatory view showing a first example of the sensor voltage, the increase / decrease determination value, and the count value of the increase / decrease number in the third embodiment, and FIG. It is operation | movement explanatory drawing which shows the 2nd example of a count value.

As shown in the first example of FIG. 12, when the number of times of increase / decrease is 0, the operation control unit 8 detects an increase / decrease condition for switching the operation mode when a predetermined range of + time (T1 ≦ T ₊ ≦ T2) is detected. Is determined, and the number of increase / decrease is one. Here, when the number of increases / decreases is set to 1 (when the increase / decrease judgment value switches from + to-), the peak range having a predetermined width with respect to the peak value is operated based on the peak value of the sensor signal. The information is stored in the control unit 8 or the storage unit 9. Next, when the operation control unit 8 detects + time (T1 ≦ T ₊ ≦ T2) in a predetermined range, the operation control unit 8 compares the peak value of the sensor signal at that time with the peak range. Is incremented. In this way, when the increase / decrease determination value is switched from + to − at a peak value outside the peak range, it is assumed that the increase / decrease determination value has been switched due to a factor other than the user operation, and the increase / decrease number is not incremented. To do.

As shown in the second example of FIG. 13, if the peak value when the + time in the predetermined range is detected is smaller or larger than the peak range, the increase / decrease count is reset. Also, + time or - a long time, T _{+, T} -> For _T2, and at the same time resets the decreasing number, also resets the peak range of the stored sensor signals.

  According to the third embodiment, when the sensor signal changes due to an external factor, such as when the curtain fluctuates during normal use or when an object passes directly under the illuminance sensor, the operation mode is erroneously switched off. It is possible to prevent the change. When the user actually operates, it is unlikely to change the light emitting device such as a flashlight in the middle of the operation, and since the same tool is used during the operation, the peak value should be almost the same. If the operation mode is changed, it can be changed without any problem.

(Fourth embodiment)
In the fourth embodiment, in the first to third embodiments, the operation mode can be reset to a predetermined operation by the power ON / OFF operation. Since other operations and the configuration of the illumination device are the same as those in the first embodiment, the description thereof is omitted.

  FIG. 14 is a block diagram showing a configuration of a lighting apparatus according to the fourth embodiment. The lighting apparatus 150 of the fourth embodiment includes a power supply detection unit 10. The power detection unit 10 detects the ON / OFF state of the wall switch 1 that is an example of a power switch, and outputs a power state signal to the operation control unit 8. Based on the power supply state signal, the operation control unit 8 performs a reset when a predetermined reset condition is satisfied in the power supply state signal, and sets a predetermined operation mode.

  FIG. 15 is an operation explanatory view showing a first example of the power ON / OFF state and the power ON count value in the fourth embodiment, and FIG. 16 is a power ON / OFF state and power ON in the fourth embodiment. FIG. 17 is an operation explanatory diagram showing a third example of the power ON / OFF state and the power ON count value in the fourth embodiment.

As shown in the first example of FIG. 15, when the operation control unit 8 detects the power ON time T _ON (T3 ≦ T _ON ≦ T4) within a predetermined range, the power ON condition for starting the notification is satisfied. Judgment is made and the power is turned on once. Here, the range of power ON time _{T ON,} for example T3 = 0.5 sec, and T4 = 3.0 sec. The number of power-on times is stored in the storage unit 9, and when the power is turned on next time, the operation control unit 8 reads the number of power-on times stored in the storage unit 9. When the power ON of this predetermined time T _ON (T3 ≦ T _ON ≦ T4) is continuously detected, the power ON count is incremented as follows: power ON count 1 time → 2 times → 3 times →. For example, when the power ON for a predetermined time is detected six times continuously (when the number of power ON is six), the operation control unit 8 determines that the reset condition is satisfied, performs the reset, and performs a predetermined Set to operation mode. For example, the operation mode at the time of reset is returned to the operation mode at the time of shipment.

As shown in the second example of FIG. 16, when the power ON time T _ON is long and T _ON > T4, the power ON count is reset to zero. Further, as shown in the third example of FIG. 17, when the power ON time T _ON is short and T _ON <T3, the power ON count is not incremented, reset is not performed, and the power ON count is maintained.

  According to the fourth embodiment, it is possible to reset the operation modes of all the luminaires connected to one power supply to a predetermined value all at once by performing a reset by turning on / off the power supply. become. In the example of the above embodiment, the factory state is reset. However, instead of resetting to the operation mode at the time of shipment, the operation mode may be switched to a predetermined operation mode according to the number of times the power is turned on. .

(Fifth embodiment)
The fifth embodiment is configured to allow communication between a plurality of lighting fixtures in the first to fourth embodiments. Since other operations and the configuration of the illumination device are the same as those in the first embodiment, the description thereof is omitted.

  FIG. 18 is a configuration diagram illustrating a configuration of an illumination system according to the fifth embodiment. In the lighting system of the fifth embodiment, lighting fixtures A to O (100-A to 100-O) are arranged as a plurality (15 in the illustrated example) of lighting devices, and these lighting fixtures supply the power line 2. To the wall switch 1. Moreover, the communication line 160 is laid between the luminaires, and the luminaires 100-A to 100-O are connected via the communication line 160 so that they can communicate with each other. Each of the lighting fixtures 100-A to 100-O can transmit and receive the detection values (sensor voltage values) of the illuminance sensors of the other lighting fixtures by the operation control unit 8 of the lighting device 3.

When the operation control unit 8 detects + time (T1 ≦ T ₊ ≦ T2) in a predetermined range, the operation value of the illuminance sensor at that time (sensor voltage) and the detection value of the illuminance sensor of the surrounding lighting fixture are obtained. Compare. Here, when the detected value of the illuminance sensor of the own device> the detected value of the illuminance sensor of the surrounding lighting fixture, it is determined that the increase / decrease condition for switching the operation mode is satisfied, and the increase / decrease count is incremented. Further, when the detected value of the illuminance sensor of the own device ≦ the detected value of the illuminance sensor of the surrounding lighting fixture, the number of increase / decrease is reset to zero.

  FIG. 19 is an operation explanatory diagram illustrating an example of sensor voltages in a plurality of lighting fixtures according to the fifth embodiment. In FIG. 19, in the configuration of the lighting system of FIG. 18, lighting fixtures C, G, H, and I in the vicinity when a light-emitting fixture such as a flashlight is directed to the lighting fixture H and the operation mode switching operation is performed. , M represents the detection value (sensor voltage) of the illuminance sensor. When the operation mode switching operation is performed by causing the light emitting device to emit light toward the lighting device H, the surrounding lighting devices C, G, I, and M have an increase or decrease in the sensor voltage of the illuminance sensor, but compared with the lighting device H. Therefore, the detection value of the illuminance sensor becomes small. As a result, the number of increases / decreases is incremented only with the lighting fixture H having the largest detection value of the illuminance sensor, and the operation mode is switched.

  According to the fifth embodiment, even when light is irradiated toward a lighting fixture whose operation mode is to be switched and the light reaches a surrounding lighting fixture, the operation mode of the lighting fixture that is not intended by mistake Can be prevented from being switched.

  As described above, according to the present embodiment, a dedicated device is not required for setting and switching the operation mode as the switching of the operation state, and regardless of the distance between the lighting device and the user, the lighting device or Various settings can be made for each lighting device. This makes it possible to reduce the cost of parts, improve design, improve operability and workability, and handle a wider range of usage environments.

  At this time, the operation mode can be set and switched regardless of the signal level by switching the operation mode using the increase / decrease pattern of the output signal of the illuminance sensor. In addition, by changing the operation mode with an increase / decrease pattern having a cycle pattern faster than the response speed of the light source brightness feedback control, it is possible to prevent the light source brightness from changing due to constant brightness control. . In addition, by using a pattern including at least one of an increase and a decrease in the time interval within a predetermined range as the increase / decrease pattern, it becomes difficult to be affected by noise or the like due to external factors, and malfunction can be prevented. For example, when an increase or decrease in a time interval within a predetermined range occurs, it is determined that the increase / decrease condition is satisfied and the increase / decrease count is counted, and when the increase / decrease count reaches the predetermined count, it is determined that a predetermined increase / decrease pattern has occurred. Thus, the operation mode switching operation by the user can be detected more reliably. Furthermore, by determining the peak value that has changed from increasing to decreasing or decreasing to increasing, the operation mode switching operation can be detected more accurately, and malfunction can be prevented.

  In addition, when there are multiple lighting fixtures, the operation mode of the lighting fixture that is not intended by mistake is changed by switching the operation mode when the signal level of the own device is large compared to the signal level of the illuminance sensor of the other lighting fixtures. Can be prevented from switching.

  The present invention is intended to be variously modified and applied by those skilled in the art based on the description in the specification and well-known techniques without departing from the spirit and scope of the present invention. Included in the scope for protection. Moreover, you may combine each component in the said embodiment arbitrarily in the range which does not deviate from the meaning of invention.

DESCRIPTION OF SYMBOLS 1 Wall switch 2 Power supply line 3 Lighting device 4 Light source 5 Illuminance sensor 6 Lighting circuit part 7 Output control part 8 Operation control part 9 Memory | storage part 10 Power supply detection part 100, 100a, 100b, 100c, 150, 100-A-100-O Lighting fixture 110 Ceiling 120 Light-emitting fixture 121 Indicator light 160 Communication line

Claims (8)

A lighting circuit for supplying power to the light source and lighting it,
A sensor unit that outputs a signal according to brightness;
The power supplied from the lighting circuit unit to the light source is feedback-controlled so that the signal level of the output signal of the sensor unit becomes a predetermined value, and the signal level of the output signal of the sensor unit becomes a predetermined increase / decrease pattern A light source lighting device comprising: a lighting control unit that switches an operation state in the case. The light source lighting device according to claim 1,
The lighting control unit is a light source lighting device that uses a pattern having a cycle faster than a response speed of the feedback control as the predetermined increase / decrease pattern. The light source lighting device according to claim 1,
The lighting control unit is a light source lighting device that uses a pattern when the predetermined increase / decrease pattern includes at least one of an increase and a decrease in a time interval within a predetermined range for a predetermined number of times. The light source lighting device according to claim 3,
The lighting control unit counts the number of increases / decreases when the signal level of the output signal includes at least one of an increase and a decrease in a time interval within a predetermined range, and the predetermined increase / decrease when the increase / decrease number reaches a predetermined number. A light source lighting device that determines that a pattern has occurred. The light source lighting device according to any one of claims 1 to 4,
The lighting control unit determines a peak value that is changed from increasing to decreasing or decreasing to increasing when the number of increase / decrease times is counted with respect to the signal level of the output signal, and the peak value has a predetermined range. A light source lighting device that counts the number of times of increase / decrease in The light source lighting device according to any one of claims 1 to 5,
Provided with a power supply detection unit that detects the ON / OFF state of the power supply,
The lighting control unit is a light source lighting device that resets an operation state when a predetermined reset condition is satisfied in an output signal of the power source detection unit.   The illuminating device provided with the light source lighting device in any one of Claim 1 to 6. A plurality of lighting devices according to claim 7, comprising a communication path for inputting and outputting an output signal of a sensor unit of a light source lighting device between a plurality of lighting devices,
The lighting control unit of each light source lighting device compares the output signal of the sensor unit of its own light source lighting device with the output signal of the sensor unit of another light source lighting device, and the signal level of the output signal of its own sensor unit is An illumination system that switches an operation state when the signal level of the output signal of the sensor unit becomes a predetermined increase / decrease pattern that is larger than the others.

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