Lighting control device, lighting device, lighting control system, and lighting system

The present invention is a lighting control device that controls lighting, extinguishing, brightness, etc. of a lighting fixture based on each detected value of a motion sensor and an illuminance sensor and an external signal, a lighting device provided with this lighting control device, and a plurality of lightings. The present invention relates to a lighting control system including a control device and a lighting system including the lighting control system.

In the conventional lighting control device, when the motion sensor detects the human body and no external signal is input, the light source of the light source is based on the detection value of the illuminance sensor so that the illuminance of the irradiated surface is within the target illuminance range. It controls the optical output. On the other hand, when an external signal is input, this lighting control device ignores the control by the illuminance sensor and the motion sensor, and the lighting state is determined in advance according to the priority set in the input external signal. I have to. Further, in this lighting control device, when the external signal is switched from on to off, the light output of the light source fades in or out to the control level by the illuminance sensor and the motion sensor (for example, Patent Document 1). reference.).

<patcit num="1"><text>Japanese Unexamined Patent Publication No. 10-302969 ([0018] ~ [0020], [0026] ~ [0028], Fig. 1, Fig. 2)</text></patcit>

<p> By the way, in a fluorescent lamp constituting a lighting fixture, the electron radioactive substance applied to the electrode is consumed at the time of starting, so that the lamp life is generally shortened as the number of blinks increases. For example, if a fluorescent lamp is blinked 20 to 30 times a day, its life is halved as compared with the case where it is not blinked even once. However, it goes without saying that it costs less electricity to turn off the fluorescent lamp when no one is present. On the other hand, when the fluorescent lamp is dimmed, there is no effect on the lamp life, but when the dimming rate is 25%, there is 35% power consumption when the dimming rate is 100%. Here, the dimming rate means the degree of brightness when the brightness when the fluorescent lamp is lit at all light is 100%, and when the dimming rate is 70%, the degree of brightness of the fluorescent lamp. Means that it will be 70%. Hereinafter, it will be referred to as energy saving by extending the lamp life of the fluorescent lamp and reducing the power consumption.</p><p> On the other hand, the sensations felt by humans due to the blinking and dimming of fluorescent lamps are different even in the same building as shown below. In other words, in places where people stay in the same place for a long time and there is relatively little movement, such as the floor of an office where many people are seated and performing work, in a certain area (area 1), people If a person leaves the area (second area) adjacent to the first area even though he / she is present, the fluorescent lamp in the second area is immediately turned off, and the person is present in the first area. For those who are, they feel anxiety, loneliness, and alienation. On the other hand, there are more people coming and going and passing through than other places such as toilets, corridors, elevator halls, etc., but in places where people do not stay for a long time, people enter the place without any people at all. If the fluorescent lamp is off, you will feel the above-mentioned discomfort, but when the fluorescent lamp is lit at the lowest illuminance, the fluorescent lamp is dimmed to the maximum illuminance at the same time as a person enters, and as soon as there are no more people, the fluorescent lamp is dimmed to the maximum illuminance. Even if the illuminance is returned to the minimum illuminance, the above-mentioned discomfort is not felt.</p><p> Furthermore, the sensation that a person feels with respect to a change in illuminance usually has what is called an S-curve characteristic. That is, when the illuminance is changed, a person has a dull sense of illuminance change in a relatively high illuminance range, but has a sharp sense of illuminance change in a relatively low illuminance range. For example, when the sun is high, people don't care much even if the sun goes down a little, but when it gets dark even a little in the evening, people care. This is related to the time (fade-in time and fade-out time) at which the illuminance is changed (fade-in or fade-out) by dimming the fluorescent lamp. As explained above, it is not easy to achieve both energy saving and human sense (comfort) of dimming lighting because various factors are intricately involved. Furthermore, in the event of an emergency such as a fire, the fluorescent lamp must be turned on immediately at a dimming rate of 100% without considering energy saving and human sense (comfort) for dimming the lighting.</p><p> However, in the above-mentioned conventional lighting control device, no consideration is given to energy saving, and since the fade time is fixed, no consideration is given to human comfort for dimming.</p><p> The present invention has been made to solve the above-mentioned problems, and an object of the present invention is a lighting control device capable of improving a person's feeling (comfort) for dimming lighting while saving energy. , Lighting equipment, lighting control system and lighting system.</p>

<p> The lighting control device according to the present invention turns on and off the lighting fixture based on the human body detection signal from the human sensor that detects the presence or absence of the human body and the detection value from the illuminance sensor that detects the illuminance in the detection area. And the brightness is controlled, and the operation mode 0 that invalidates the value of the human body detection signal, and when the value of the human body detection signal changes from the human body detection state to the human body non-detection state, the lighting takes the first fade-out time. Operation mode 1 to control the dimming of the fixture and turn it off. When the value of the human body detection signal changes from the human body detection state to the non-human body detection state, the lighting fixture is dimmed and controlled over the second fade-out time to achieve intermediate dimming. After reaching the rate, it is held for the holding time, and the lighting equipment is dimmed and turned off over the third fade-out time. Operation mode 2, the value of the human body detection signal changes from the human body detection state to the non-human body detection state. If this is the case, at least one of the operation modes 3 of the operation mode 3 in which the luminaire is dimmed and controlled to reach the lower limit dimming rate over the fourth fade-out time is configured to be executable and selectable, and the first to fourth fade-outs are performed. At least one of the time and the holding time is configured to be configurable.</p>

<p> In the present invention, the operation mode is selected according to the area where the lighting equipment is installed, and at least one of the first to fourth fade-out times and the holding time is set to save energy and dimming the lighting. It is also possible to improve the human sense (comfort) of the person.</p>

Embodiment 1. FIG. 1 shows a lighting device according to a first embodiment of the present invention. The lighting devices in this example are a lighting control device 1, a motion sensor 2, an illuminance sensor 3, a fire detector 4, and a timer 5.₁And 5₂And lighting equipment 6₁~6_nIt is composed of (n is a natural number), a lighting remote controller 7, and a dimming signal line 8. The lighting control device 1 is a human body detection signal S of the motion sensor 2._H, Detected value D of illuminance sensor 3_L, Timer 5₁And 5₂Time arrival signal S from_T1And S_T2, Fire detection signal S from fire detector 4_F, Command signal S from lighting remote control 7_CILighting fixtures 6 based on₁~6_nControls lighting, extinguishing, brightness, etc.

The motion sensor 2 operates in response to a temperature change caused by the movement of the human body in the detection area, and when the human body is detected, the "H" level human body detection signal S_H, If the human body is not detected, the "L" level human body detection signal S_HIs supplied to the lighting control device 1. Specifically, the motion sensor 2 can detect the movement of a hand of about 30 cm at a distance of 2 m, and when mounted on a ceiling with a height of 2.5 m, the detection area is the floor directly below it. It is a quadrangular pyramid with a rectangle of about 5m x 7m centered on the surface as the bottom and the motion sensor 2 as the apex.

The illuminance sensor 3 detects the average illuminance in the detection area (the target is the floor surface or the desk surface), and the detection value D is a voltage value corresponding to the average illuminance._L(0 to 5V) is supplied to the lighting control device 1. The illuminance sensor 3 is, for example, substantially equal to a photoelectric conversion element such as a photodiode or a phototransistor having a light receiving sensitivity that detects brightness with a sensitivity close to that of the human eye, and light from any position in the detection area. It consists of an averaging filter for capturing by weight.

The fire detector 4 detects that a thermal fire has occurred, such as an infrared sensor or a temperature sensor, or a smoke type fire, such as a photoelectric sensor or an ionization sensor. Detect and "H" level fire detection signal S_FIs supplied to the lighting control device 1. Timer 5₁Is for the night, for example, the "H" level time arrival signal S between sunset (around 5 pm to 7:30 pm) and around 11 pm_T1Is supplied to the lighting control device 1. Timer 5₂Is for midnight, for example, the "H" level time arrival signal S between about 11:00 pm and sunrise (around 5 am to 7:30 am)_T2Is supplied to the lighting control device 1.

Lighting equipment 6₁~6_nHas a fluorescent lamp, an inverter circuit, etc., and is connected to the lighting control device 1 via a dimming signal line 8. Lighting equipment 6₁~6_nIs a PWM (Pulse Wide Modulation) dimming signal S supplied from the lighting control device 1 via the dimming signal line 8._CLThe amount of light is continuously changed based on. In addition, each lighting equipment 6₁~6_nWhen generically referred to, it is simply referred to as a lighting fixture 6. The lighting remote controller 7 is used when the operator performs various setting operations for lighting control, and the infrared command signal S corresponding to the above operation is used._CIIs supplied to the lighting control device 1. For details of the configuration and function of the lighting remote controller 7, refer to, for example, Japanese Patent Application Laid-Open No. 2002-299071.

The lighting control device 1 includes an external input unit 11, a control unit 12, a dimming signal output unit 13, a transmission / reception unit 14, and a storage unit 15. The external input unit 11 is a fire detection signal S from the fire detector 4._F, Timer 5₁Time arrival signal S from_T1And timer 5₂Time arrival signal S from_T2Is filtered and then supplied to the control unit 12. The control unit 12 is composed of a central processing unit (CPU), a digital signal processor (DSP), a sequencer, etc., and executes lighting control processing or the like based on a lighting control program or the like stored in the storage unit 15. Control each part of the device. That is, for example, when the lighting control program is read, it is read by the control unit 12 and controls the operation of the control unit 12. When the lighting control program is activated, the control unit 12 executes the lighting control processing described later under the control of the lighting control program. Lighting control processing is the human body detection signal S_H, Detected value D_L, Time arrival signal S_T1And S_T2, Fire detection signal S_F, Command signal S from transmitter / receiver 14_CELighting equipment 6 based on (described later)₁~6_nIt is a process of controlling lighting, extinguishing, brightness, and the like.

The dimming signal output unit 13 is based on the dimming command of the dimming rate from the control unit 12, and the PWM dimming signal S_CLProduces a luminaire 6 via the dimming signal line 8₁~6_nOutput to. The transmitter / receiver 14 is an infrared command signal S from the lighting remote controller 7._CIReceives the command signal S of the electrical signal_CEThe dimming rate signal S of the electric signal indicating the current dimming rate supplied from the control unit 12 while being converted to and supplied to the control unit 12._RThe infrared dimming rate signal S_RIAnd send it to the lighting remote controller 7.

The storage unit 15 is composed of RAM, ROM, or a semiconductor memory such as a flash memory. The storage unit 15 stores in advance the lighting control program and other various programs to be executed by the control unit 12, and is used for work when the control unit 12 executes the lighting control program and other various programs. A working storage area to be used as is secured.

FIG. 2 is a schematic plan view of a floor of a building to which the lighting device of the above configuration is applied. This floor has a working area 21, a corridor area 22, and a toilet area 23.₁~23₃It is composed of an elevator area 24, a staircase area 25, and a hot water supply area 26. The working area 21 is divided into nine working area blocks 41 composed of a square floor surface of 5 m × 5 m shown in FIG. On the floor of each work area block 41, nine desks 42 are arranged in a matrix of 3 rows and 3 columns, and 9 chairs 43 corresponding to each desk 42 are also arranged in 3 rows and 3 columns. Arranged in a matrix, workers are assigned to perform their duties at the assigned desk 42. On the other hand, on the ceiling of each work area block 41, as shown in FIG. 4, a lighting control device 1 housed in a substantially cylindrical housing is embedded in a substantially circular embedded hole formed in the substantially center. .. An illuminance sensor 3 is attached to the housing substantially in the center, and a motion sensor 2 is attached in the vicinity of the illuminance sensor 3. Further, on the ceiling of each working area block 41, a substantially circular embedded hole is formed in the vicinity of the lighting control device 1, and the fire detector 4 is embedded in the embedded hole. In addition, there are four luminaires 6 on the ceiling of each work area block 41.₁~6₄Is installed in a position that is almost symmetrical. Each luminaire 6 shown in Fig. 4₁~6₄Has two straight tube 40w type fluorescent lamps 44 and an inverter circuit (not shown).

As shown in FIG. 5, the ceiling of the corridor area 22 consists of two corridor area blocks 45 consisting of a square ceiling surface of 5 m × 5 m and a rectangular ceiling surface of about 4.6 m × about 2.4 m 1. It is divided into individual corridor area blocks 46. The mounting state and configuration of the lighting control device 1 and the like in the two corridor area blocks 45 are the same as the mounting state and configuration of the lighting control device 1 and the like in each working area block 41 shown in FIG. On the other hand, the mounting state of the lighting control device 1 and the like on the ceiling of the corridor area block 46 is relatively the same as the mounting state of the lighting control device 1 and the like in each working area block 41 shown in FIG.₁~6₄Has two straight tube 20w type fluorescent lamps 47 and an inverter circuit (not shown).

Each toilet area 23₁~23₃As shown in FIG. 4, two private rooms 28 to which Western-style toilet bowls 27 are attached are provided on the floor surface of the floor, and a door 29 is attached to the entrance of each private room 28. On the other hand, each toilet area 23₁~23₃As shown in FIG. 5, a lighting control device 1 housed in a substantially cylindrical housing is embedded in a substantially circular embedded hole formed in the center of the ceiling. An illuminance sensor 3 is attached to the housing substantially in the center, and a motion sensor 2 is attached in the vicinity of the illuminance sensor 3. In addition, each toilet area 23₁~23₃2 luminaires on the ceiling 6₁And 6₂Is installed at a position approximately in the center of each private room 28. Each luminaire 6 shown in Fig. 5₁And 6₂Is a downlight type embedded in the ceiling, and although not shown, it has one cone type 42w type fluorescent lamp and an inverter circuit.

As shown in FIG. 2, two elevators 30 are installed in the elevator area 24. Since each elevator 30 is installed on the upper and lower floors, as shown in FIG. 5, there is no ceiling and no lighting control device 1 is attached. Lighting fixture 6 on one wall of stairs area 25₁Is installed. Lighting equipment 6₁Although not shown, it has a substantially square box-shaped cover, a circular 32w-shaped fluorescent lamp, an inverter circuit, and the like. On the other hand, as shown in FIG. 5, a lighting control device 1 housed in a substantially cylindrical housing is attached to the lower surface of the stairs provided between the stairs area 25 and the upper floor. An illuminance sensor 3 is attached to the housing substantially in the center, and a motion sensor 2 is attached in the vicinity of the illuminance sensor 3.

As shown in FIG. 2, the hot water supply area 26 is provided with a gas range 31 and a sink 32 along the wall behind the hot water supply area 26, and a door 33 is attached to the entrance. On the other hand, on the ceiling of the hot water supply area 26, as shown in FIG. 5, the lighting fixture 6 is located in the center.₁Is installed. Lighting equipment 6₁Has two straight tube 20w type fluorescent lamps 47 and an inverter circuit (not shown). In addition, on the ceiling of the hot water supply area 26, the toilet area 23₃The lighting control device 1 housed in a substantially cylindrical housing is embedded in a substantially circular embedded hole formed closer to it. An illuminance sensor 3 is attached to the housing substantially in the center, and a motion sensor 2 is attached in the vicinity of the illuminance sensor 3. Further, on the ceiling of the hot water supply area 26, a substantially circular embedded hole is formed near the corridor area block 45, and the fire detector 4 is embedded in the embedded hole.

Next, the operation of the lighting device having the above configuration will be described. First, there are the following four operation modes of the lighting control device 1, and the operator operates and sets the lighting remote controller 7. The operation method of the lighting remote controller 7 and the command signal S_CIFor details of the method of supplying the lighting control device 1 and the like, for example, refer to the above-mentioned Japanese Patent Application Laid-Open No. 2002-299071. (i) Operation mode 0 (M0) This operation mode 0 is the human body detection signal S from the motion sensor 2._HThis is the operation mode in which the value of is invalid. This operation mode 0 may be adopted, for example, when the purpose is to maximize energy saving at the expense of improving the human sense (comfort) for dimming the lighting. Further, in this operation mode 0, for example, in a department store, a supermarket, or the like, people come and go frequently, but the human body detection signal S_HIt may be adopted when the lighting device is installed in an area where it is inconvenient to perform the processing based on the above.

(ii) Operation mode 1 (M1) In this operation mode 1, for example, as shown in FIG. 6, the human body detection signal S from the motion sensor 2_HWhen changes from the "H" level (human body detection state) to the "L" level (human body non-detection state), the first fade-out time T_FO1The corresponding lighting fixture 6 is dimmed and turned off (fade out), and the human body detection signal S from the motion sensor 2 is turned off._HWhen changes from the "L" level to the "H" level, the corresponding luminaire 6 is turned on and the first fade-in time T_FI1Dimming control with the first dimming rate R_CL1Is the operation mode to reach (fade in). Here, the fade-out time and the fade-in time are the PWM dimming signal S._CLThe time required for the value of to change by 1%. In addition, the first dimming rate R_CL1And the second dimming rate R described later_CL2Etc. are simply referred to as dimming rate R._CLCalled. Dimming rate R_CLIs the detection value D of the illuminance sensor 3_LWhen is used, it is obtained by Eq. (1), and the detection value D of the illuminance sensor 3 is used._LWhen is not used, it is calculated by Eq. (2). R_CL= Target illuminance (lux) / initial illuminance (lux) x 100 ... (1) R_CL= Current illuminance (lux) / current maximum output illuminance (lux) x 100 ... (2)

In this operation mode 1, for example, the corridor area 22 and the toilet area 23 shown in FIG. 2 are set.₁~23₃, Stairs area 25, hot water supply area 26, etc., where people come and go and pass more often than in other places, but people do not stay for a long time, improve the sense (comfort) of people to dimming the lighting. It may be adopted when the purpose is to save energy at the expense of. 1st fade-out time T_FO1And the first fade-in time T_FI1For example, it is about 0.1 seconds. In addition, the first dimming rate R to be reached_CL1Is, for example, 70%.

(iii) Operation mode 2 (M2) In this operation mode 2, for example, as shown in FIG. 7, the human body detection signal S from the motion sensor 2_H2nd fade-out time T when changes from "H" level to "L" level_FO2Dimming control of the corresponding lighting fixture 6 with an intermediate dimming rate R_CLMRetention time T after reaching_KHold only and 3rd fade out time T_FO3The corresponding lighting fixture 6 is dimmed and turned off (fade out), and the human body detection signal S from the motion sensor 2 is turned off._HWhen changes from the "L" level to the "H" level, the corresponding luminaire 6 is turned on and the second fade-in time T_FI22nd dimming rate R_CL2Is the operation mode to reach (fade in).

In this operation mode 2, for example, in a place where a person stays in the same place for a long time and the movement of the person is relatively small, such as the working area 21 shown in FIG. 2, the person's sense of energy saving and dimming of lighting ( It may be adopted when the purpose is to achieve both comfort). 2nd fade-out time T_FO2For example, about 20.0 seconds, holding time T_KFor example, about 10.0 seconds, the third fade-out time T_FO3For example, about 100 seconds, the second fade-in time T_FI2For example, it is about 0.1 seconds. In addition, the intermediate dimming rate R to be reached_CLMIs, for example, 50%, the second dimming rate R_CL2Is, for example, 70%. That is, the second dimming rate R_CL2Intermediate dimming rate R from (70%)_CLMIt takes 20 seconds to reduce to (50%), that is, it takes 1 second to adjust the dimming rate R_CLWill be reduced by 1%. In addition, the intermediate dimming rate R_CLMIt takes 100 seconds to turn off the light from (50%), that is, it takes 2 seconds to adjust the dimming rate R._CLWill be reduced by 1%. These are almost in line with the above-mentioned S-curve characteristics relating to human sensation with respect to changes in illuminance.

(iv) Operation mode 3 (M3) In this operation mode 3, for example, as shown in FIG. 8, the human body detection signal S from the motion sensor 2_H4th fade-out time T when changes from "H" level to "L" level_FO4The lower limit dimming rate R by dimming control of the corresponding lighting fixture 6_CLL(Fade out), and the human body detection signal S from the motion sensor 2_H3rd fade-in time T when changes from "L" level to "H" level_FI33rd dimming rate R by dimming control of the corresponding lighting fixture 6_CL3It is an operation mode to reach (fade in).

In this operation mode 3, for example, the corridor area 22 and the toilet area 23 shown in FIG. 2 are set.₁~23₃, Stairs area 25, hot water supply area 26, etc., where there are more people coming and going and passing, but where people do not stay for a long time, people's sense of energy saving and dimming of lighting (comfort) ) And when the purpose is to achieve both. 4th fade-out time T_FO3For example, about 0.1 seconds, the third fade-in time T_FI3For example, it is about 10.0 seconds. In addition, the lower limit dimming rate R to be reached_CLLFor example, 5%, 3rd dimming rate R_CL3Is, for example, 70%.

Next, the operation of the nine lighting devices installed in the nine working area blocks 41 constituting the working area 21 shown in FIG. 2 will be described with reference to FIGS. 9 to 11. As the operation mode of each lighting device, it is assumed that the operation mode 2 is adopted as described above. First, as shown in Figure 9, nine work area blocks 41₁~41₉In each of the above, at least one worker is performing the work in charge at the assigned desk 42, and each luminaire mounted on the ceiling of the corresponding work area block 41 6₁~6₄Dimming rate R_CLIs dimmed to 70% by the corresponding lighting control device 1.

Next, 9 work area blocks 41₁~41₉Of these, 3 work area blocks 41₅、41₇And 41₈In, since all the workers left the seat, the human body detection signal S of the motion sensor 2 of the corresponding lighting device_HHas changed from the "H" level to the "L" level. As a result, the control unit 12 of the lighting control device 1 constituting the lighting device has the second fade-out time T based on the set operation mode 2._FO2Take (20.0 seconds in this case) to the corresponding luminaire 6₁~6₄Dimming control and dimming rate R_CLTo reach 70% to 50% (see Figure 10). In Figure 10, the work area block 41₅、41₇And 41₈The shaded areas are the lighting fixtures in these areas 6₁~6₄Dimming rate R_CLShows that is 50%.

Thus, luminaire 6₁~6₄Dimming rate R_CLIt takes 20 seconds to reduce from 70% to 50%, that is, the dimming rate R takes 1 second._CLIs reduced by 1%. This is almost in line with the above-mentioned S-curve characteristics regarding human sensation for changes in illuminance, so the working area block 41₅、41₇And 41₈Working area block 41 adjacent to₂、41₄、41₆And 41₉For those who are still working in, work area block 41₅、41₇And 41₈Lighting equipment 6₁~6₄Dimming rate R_CLI hardly notice that it has dropped, that is, there is no sense of discomfort.

In this case, the working area block 41₅、41₇And 41₈The control unit 12 of the lighting control device 1 constituting the lighting device installed in is the detection value D from the illuminance sensor 3._LIs invalid. Such processing is performed for the following reasons. That is, the detected value D from the illuminance sensor 3_LLighting fixtures based on 6₁~6₄When dimming control is performed, the light of the lighting fixture 6 lit in the working area block 41 adjacent to the working area block 41 leaks into the working area block 41, and the illuminance sensor 3 leaks. Detection value D according to light_LIs supplied to the control unit 12. As a result, the control unit 12 must have a dimming rate R of 50%._CLAttempts to control to a value lower than 50%. Therefore, the control unit 12 determines the detection value D from the illuminance sensor 3._LIgnore the lighting fixture 6₁~6₄Dimming rate R_CLIs forcibly reduced to 50%.

Next, work area block 41₅、41₇And 41₈The control unit 12 of the lighting control device 1 constituting the lighting device installed in the above has a holding time T based on the set operation mode 2._KAfter holding for (100.0 seconds in this case), the third fade-out time T_FO3Take (100 seconds in this case) to the corresponding luminaire 6₁~6₄Is dimmed and turned off from a dimming rate of 50% (see Fig. 11). In FIG. 11, the working area block 41₅、41₇And 41₈It is the lighting fixtures in these areas that have grid lines on them.₁~6₄Indicates that is off (dimming rate 0%).

Thus, luminaire 6₁~6₄It takes 100 seconds to turn off the light from the dimming rate of 50%, that is, it takes 2 seconds to turn off the dimming rate R._CLIs reduced by 1% in order to make it almost in line with the above-mentioned S-curve characteristics. In this case, the working area block 41₅、41₇And 41₈The control unit 12 of the lighting control device 1 constituting the lighting device installed in is the detection value D from the illuminance sensor 3._LIs ignored, but the reason is the same as above.

On the other hand, work area block 41₅、41₇And 41₈Working area block 41 adjacent to₂、41₄、41₆And 41₉The control unit 12 of the luminaire 1 that constitutes the luminaire installed in the luminaire 6 performs the same correction as the initial illuminance correction (see FIG. 12) and corresponds to the luminaire 6.₁~6₄The upper limit dimming rate of 70% is controlled to be similar to the change in dimming signal output in the initial illuminance correction (see Fig. 13). As a result, the working area block 41₂、41₄、41₆And 41₉Illuminance of the work area block 41 adjacent to these₁And 41₃It is possible to prevent the illuminance from becoming too large. Here, the initial illuminance correction means that, as shown in FIG. 12, the excessive brightness caused by the expected maintenance rate of the luminaire at the time of new installation is suppressed by dimming. The maintenance rate is the ratio of the average illuminance on the target to the initial illuminance after using the luminaire for a certain period of time. By sequentially performing the operations described above, in the working area 21 shown in FIG. 2, it is possible to achieve both energy saving and a human sense (comfort) for dimming the lighting.

In addition, each corridor area blocks 45 and 46 and each toilet area 23 constituting the corridor area 22 shown in FIG.₁~23₃In the stairs area 25 and the hot water supply area 26, the control unit 12 of the lighting control device 1 constituting the lighting device installed in each area or area block is engaged in the above-mentioned employment according to the set operation mode. Performs the same operation as the operation in area 21.

Thus, according to the configuration of this example, the human body detection signal S of the motion sensor 2_HIn addition to providing four operation modes of the lighting control device 1 in association with the above, the fade-in time and the fade-out time in each operation mode can be set by the operator by operating the lighting remote controller 7. Therefore, by selecting and setting the operation mode most suitable for the character of the area where the lighting device is installed, it is possible to improve the human sense (comfort) for dimming the lighting while saving energy. In addition, the operation mode can be selected and set in consideration of the user's intention (whether energy saving or comfort is emphasized, etc.) rather than the character of the area where the lighting device is installed.

Embodiment 2. In the above-described first embodiment, an example is shown in which the four operation modes of the lighting control device 1 are not particularly related to an external signal, but the present invention is not limited thereto. For example, as shown below, the four operation modes of the lighting control device 1 may be associated with an external signal. The storage unit 15 constituting the lighting control device 1 shown in FIG. 1 stores the setting table (see FIG. 14) shown below.

(i) Operation mode 0 (M0) When this operation mode 0 is combined with the input state of an external signal, for example, as shown in (b) and (f) of the setting table shown in FIG. 14, the fire detector 4 From "H" level fire detection signal S_FIs supplied, the human body detection signal S_HValue, detection value of illuminance sensor 3 D_L, Or fire detection signal S_FA preset fourth fade-in time T, regardless of the value of any other external signal other than_FI4The upper limit dimming rate R is controlled by dimming the corresponding lighting fixture 6_CLHIt should be adopted when reaching (fade in). 4th fade-in time T_FI4For example, it is about 0.1 seconds. In addition, the upper limit dimming rate R to be reached_CLHFor example, 100%. In FIG. 14, the * mark indicates Don't care (regardless), that is, the time arrival signal S._T1And S_T2If so, either "H" level or "L" level is acceptable, detection value D_LIf so, it means that any value can be used.

(ii) Operation mode 1 (M1) When this operation mode 1 is combined with the input state of an external signal, for example, as shown in (c) and (g) of the setting table shown in FIG. 14, the fire detector 4 From "L" level fire detection signal S_FIs supplied and timer 5₁From "H" level time arrival signal S_T1Human body detection signal S_HShould be adopted when 1st fade-out time T_FO1For example, about 5.0 seconds, the first fade-in time T_FI1For example, it is about 10.0 seconds. In addition, the first dimming rate R to be reached_CL1Is, for example, 50%.

(iii) Operation mode 2 (M2) When this operation mode 2 is combined with the input state of an external signal, for example, as shown in (a) and (e) of the setting table shown in FIG. 14, the fire detector 4 From "L" level fire detection signal S_FIs supplied and timer 5₁From "L" level time arrival signal S_T1Is supplied and timer 5₂From "L" level time arrival signal S_T2Human body detection signal S_HShould be adopted when 2nd fade-out time T_FO3For example, about 2.0 seconds, holding time T_KFor example, about 10.0 seconds, the third fade-out time T_FO3And the second fade-in time T_FI2For example, it is about 0.5 seconds. In addition, the intermediate dimming rate R to be reached_CLMIs, for example, 50%, the second dimming rate R_CL2Is, for example, 70%. As an external signal in this operation mode 2, for example, there is a lock signal indicating that an electric lock attached to a door such as a front door is locked, and an area in which a lighting fixture to be controlled is installed is inside the door. There is a corridor inside and outside the door. In this case, the retention time T_KIs a guideline for the time it takes for the locker to board the elevator near the door and the time it takes for the locker to leave the door.

(iv) Operation mode 3 (M3) When this operation mode 3 is combined with the input state of an external signal, for example, as shown in (d) and (h) shown in FIG. 14, the fire detector 4 to "L" "Level fire detection signal S_FIs supplied and timer 5₁From "L" level time arrival signal S_T1Is supplied and timer 5₂From "H" level time arrival signal S_T2Human body detection signal S_HShould be adopted when 4th fade-out time T_FO4For example, about 5.0 seconds, the third fade-in time T_FI3For example, it is about 10.0 seconds. In addition, the lower limit dimming rate R to be reached_CLLFor example, 5%, 3rd dimming rate R_CL3Is, for example, 50%.

Thus, according to the configuration of this example, the human body detection signal S of the motion sensor 2_HFour operation modes of the lighting control device 1 are provided in association with the above, and the four operation modes are combined with the input state of the external signal, and the operator sets the fade-in time and the fade-out time in each operation mode to the lighting remote controller 7. It is configured so that it can be operated and set. Therefore, the effect obtained in the above-described first embodiment can be obtained, of course, but in addition, the operation mode can be assigned according to the character of the external signal and the intended use.

Embodiment 3. Since the four operation modes of the lighting control device 1 shown in the above-described first and second embodiments mainly indicate the operation in a transient state (transient state), there is a certain dimming. Rate R_CLDetected value D of the illuminance sensor 3 in the state where_LThe dimming control operation based on the above is not specifically mentioned with some exceptions. However, in the present invention, the detection value D of the illuminance sensor 3 is obtained in both the transient state and the dimming holding state._LThe dimming control operation may be performed based on the above, or the detection value D of the illuminance sensor 3 only in the dimming holding state._LThe dimming control operation may be performed based on the above, and the detection value D of the illuminance sensor 3 may be performed in either the transient state or the dimming holding state._LIt is not necessary to perform the dimming control operation based on. Further, in the second embodiment, the detection value D of the illuminance sensor 3 is used for each pattern of the input state of the external signal._LIt may be possible to separately set whether to enable or disable the dimming control operation based on. All of these settings are made by the operator operating the lighting remote controller 7. With this configuration, more detailed lighting control can be performed.

Embodiment 4. In each of the above-described embodiments, the human body detection signal S from the motion sensor 2_HDetected value D of the illuminance sensor 3 when is changed from "L" level to "H" level_LNo particular mention is made of the dimming control operation based on. However, in the present invention, the following controls may be performed. (i) Operation mode 1 (M1) Human body detection signal S from motion sensor 2_HIs changed from "L" level to "H" level, the detection value D of the illuminance sensor 3_LIs the first dimming rate R_CL1When indicating that the illuminance is higher than the corresponding illuminance, the human body detection signal S from the motion sensor 2_HInvalidates the value of.

(ii) Operation mode 2 (M2) Human body detection signal S from motion sensor 2_HIs changed from "L" level to "H" level, the detection value D of the illuminance sensor 3_LIs the second dimming rate R_CL2When indicating that the illuminance is higher than the corresponding illuminance, the human body detection signal S from the motion sensor 2_HInvalidates the value of. (iii) Operation mode 3 (M3) Human body detection signal S from motion sensor 2_HIs changed from "L" level to "H" level, the detection value D of the illuminance sensor 3_LIs the 3rd dimming rate R_CL3When indicating that the illuminance is higher than the corresponding illuminance, the human body detection signal S from the motion sensor 2_HInvalidates the value of. With this configuration, natural lighting control can be performed.

Embodiment 5. In each of the above-described embodiments, the four operation modes of the lighting control device 1 are fixed once they are set, but the present invention is not limited thereto. For example, a schedule management function may be added to the control unit 12. That is, in a certain lighting control device 1, four operation modes can be switched according to the schedule, and the detection value D of the illuminance sensor 3 can be switched._LThe dimming control operation may be enabled or disabled based on the above, and the fade-in time and fade-out time in each operation mode may be changed. For example, in the working area 21 shown in FIG. 2, 24 hours is set from the working start time to the lunch break start time (for example, operation mode 2) and the lunch break time (for example, the dimming rate of 50% based on the signal from the timer). Control), from the end time of lunch break to the end time (for example, operation mode 2), from the end time to the start time of work the next day (for example, operation mode 1), and switch the operation mode etc. in each time zone .. In addition, one week is divided into work days (for example, Monday to Friday) and holidays (for example, Saturday and Sunday), and the operation mode and the like are switched in each time zone. With this configuration, more detailed lighting control can be performed, and the effect of energy saving can be improved.

Embodiment 6. In each of the above-described embodiments, the fade-in time, the fade-out time, and the dimming rate R in the four operation modes of the lighting control device 1_CLAlthough an example is shown in which the operator of the lighting remote controller 7 sets each of the above, the present invention is not limited to this. For example, for each operation mode, recommended values according to statistics and customer requests are stored in advance in the preset area of the storage unit 15, and the fade-in time and fade-out time that the operator wants to change from the recommended values, Or dimming rate R_CLIt may be configured to change only the setting.

In this case, instead of simply setting the operation modes 0 to 3, an operation mode suitable for each area or area block such as the working area block 41 and the corridor area block 45 may be preset. Then, when performing the initial setting using the lighting remote controller 7 after the lighting device is installed, for example, "working area", "corridor area", "toilet area", etc. are provided as "selection of installation area" items. The operation mode 2 is automatically set when the "working area" is selected, and the operation mode 3 is automatically set when the "corridor area" and the "toilet area" are selected. In addition, the operation mode for each area is not one type, but a mode that emphasizes energy saving, a mode that emphasizes human comfort for lighting dimming, and a mode that emphasizes energy saving and lighting dimming. You may preset several types, such as a mode that achieves both. With this configuration, more detailed lighting control can be performed and operability is improved.

Embodiment 7. In each of the above-described embodiments, the dimming rate R of the fluorescent lamp_CLThe PWM dimming signal S supplied from the lighting control device 1 via the dimming signal line 8._CLHowever, the present invention is not limited to this. For example, the dimming signal S by the phase control terminal_CLIs converted into a phase control dimming signal, and an incandescent lamp, a halogen luminaire, or a phase control dimming type fluorescent lamp may be dimmed and controlled based on the phase control dimming signal. With this configuration, versatility is improved.

Embodiment 8. In each of the above-described embodiments, the luminaires are independent, and the luminaire 1 constituting the luminaire controls only the luminaires installed in the corresponding area or area block. Although an example is shown, the present invention is not limited to this. For example, each work area block 41 of work area 21₁~41₉The nine lighting control devices 1 installed in the building and the central control device that controls these nine lighting control devices 1 are connected by a signal line, and the arrival and departure times of all workers are recorded. Connect the time recorder to the central controller.

In addition, in the storage unit that constitutes the central control device, for each employee code assigned to each worker, the department to which the employee belongs, the position of the work area block 41 where the assigned desk 42 is arranged, and the requested attendance at the office. It is configured so that the time zone, leaving time zone (in the case of flextime system), business trip schedule, etc. are memorized. Then, when each worker comes to the office and inserts the employee ID card or the like in which the above employee code is recorded into the insertion slot of the time recorder and registers his / her attendance, the central control device is based on the employee code from the time recorder. If the worker is the first worker to come to the office among the plurality of workers working in the work area block 41 by searching the above storage unit, the desk 42 assigned to the worker is displayed. Notify the lighting control device 1 that controls the lighting fixture 6 of the arranged working area block 41 that the first worker has arrived at the office. Upon receiving this notification, the lighting control device 1 starts dimming control of the lighting fixture 6 of the working area block 41 according to the set operation mode.

On the other hand, among multiple workers working in a certain working area block 41, when the worker who was working until the end leaves the company, if you insert an employee ID card etc. into the insertion slot of the time recorder and register your own leaving, the center The control device searches the storage unit based on the employee code from the time recorder and controls the lighting fixture 6 of the working area block 41 in which the desk 42 assigned to the worker is arranged. Notify 1 that the last worker has left the company. Upon receiving this notification, the lighting control device 1 controls dimming of the lighting fixture 6 of the working area block 41 according to the set operation mode.

The corridor area 22 and toilet area 23 shown in Fig. 2₁~23₃, Each lighting control device 1 installed in the stairs area 25 and the hot water supply area 26 may also be connected to the central control device via a signal line. In this case, when one of the plurality of workers working in the working area 21 first comes to the office to unlock the doorway of the floor, and a signal indicating that is supplied to the central control device, Each lighting control device 1 installed in each area starts operation in the operation mode set for the working hours. On the other hand, when one of the plurality of workers working in the working area 21 finally leaves the office and locks the doorway of the floor, and a signal indicating that is supplied to the central control device, each area is contacted. Each installed lighting control device 1 starts operation in the operation mode set for the time zone after work. As described above, according to the configuration of this example, it is possible to uniformly control the dimming of all the lighting fixtures installed on the floor.

Although this embodiment has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like within a range that does not deviate from the gist of the present invention. Is also included in the present invention. For example, in each of the above-described embodiments, the operation mode, the fade-in time, and the fade-out time are set by the wireless lighting remote controller 7, but the present invention is not limited to this, and the operation mode, the fade-in time, and the fade-out time are set via the lighting device 1 and the signal line. It may be set by the connected setting device.

Further, in each of the above-described embodiments, the timer 5 is used as an external signal.₁And 5₂Time arrival signal S from_T1And S_T2, Fire detection signal S from fire detector 4_F, Or an example of using a lock signal is shown, but the present invention is not limited to this. The external signals are, for example, a window opening detection signal output by a security switch installed on the window when the window is open, and a gas leak detector installed near the gas range 31 in the hot water supply area 26. It may be a gas leak detection signal or the like that detects and outputs a gas leak in the range 31. Timer 5₁And 5₂The signal from may be a time lapse signal indicating the lapse of a predetermined time. Further, in each of the above-described embodiments, the lighting control device 1 has shown an example in which all four operation modes 0 to 3 are provided, but the present invention is not limited to this, and the lighting control device 1 may have any one of them. , And may have 5 or more. Further, the content of the operation mode is not limited to the operation modes 0 to 3 described above. Further, in each of the above-described embodiments, the techniques of each other can be diverted as long as there is no particular contradiction or problem in the purpose and configuration thereof.

<figref num="1">It is a block diagram of the lighting apparatus which shows Embodiment 1 of this invention.</figref><figref num="2">It is a schematic plan view of a floor of a building to which lighting equipment is applied.</figref><figref num="3">It is a schematic diagram which shows the structure of the work area block.</figref><figref num="4">It is the schematic which shows the example of mounting the lighting device to the ceiling of a work area block.</figref><figref num="5">It is the schematic which shows the installation example of the lighting device to each ceiling of a corridor area block, a toilet area, a stairs area, and a hot water supply area.</figref><figref num="6">It is a figure for demonstrating the operation of the lighting control device when the operation mode 1 is set.</figref><figref num="7">It is a figure for demonstrating the operation of the lighting control device when the operation mode 2 is set.</figref><figref num="8">It is a figure for demonstrating the operation of the lighting control device when the operation mode 1 is set.</figref><figref num="9">It is a schematic diagram for demonstrating the operation of the 9 lighting devices installed in the 9 working area blocks constituting a working area.</figref><figref num="10">It is a schematic diagram for demonstrating the operation of the 9 lighting devices installed in the 9 working area blocks constituting a working area.</figref><figref num="11">It is a schematic diagram for demonstrating the operation of the 9 lighting devices installed in the 9 working area blocks constituting a working area.</figref><figref num="12">It is a figure which shows an example of the change of the luminous flux maintenance rate with respect to the lighting time of a luminaire.</figref><figref num="13">It is a figure which shows an example of the change of the dimming signal output with respect to the lighting time of a luminaire.</figref><figref num="14">It is a figure which shows an example of the structure of the setting table stored in the lighting control device which comprises the lighting device which is Embodiment 2 of this invention.</figref>

Code description

1 lighting control device, 2 motion sensor, 3 illuminance sensor, 4 fire detector, 5₁,5₂ Timer, 6,6₁~6_n Lighting equipment, 7 lighting remote controller, 8 dimming signal line, 11 external input section, 12 control section, 13 dimming signal output section, 14 transmitter / receiver, 15 storage section, 21 working area, 22 corridor area, 23₁~23₃ Toilet area, 24 elevator area, 25 stairs area, 26 hot water supply area, 27 Western style toilet, 28 private rooms, 29,33 doors, 30 elevators, 31 gas range, 32 sinks, 41,41₁~41₉ Working area block, 42 desks, 43 chairs, 44,47 fluorescent lamps, 45,46 corridor area block.