JP4631432B2 - Lighting control device - Google Patents

Description

  The present invention relates to an illumination control device that controls the light output of a plurality of illumination devices such that the illuminance of an illumination light irradiation surface is substantially constant.

  Conventionally, in an illumination control device that controls the light output of a plurality of illumination devices so that the illumination intensity of the illumination light irradiation surface is substantially constant, the illumination sensor attached to the ceiling surface can irradiate light emitted from the illumination device. Detects reflected light from the floor surface, wall surface, and desk surface of outside light (for example, sunlight incident from a window), and dimming the lighting device according to the detected reflected light to control light on the floor surface or desk surface The illuminance is kept constant.

  In this lighting control device, for example, sunlight reflected from the window glass of an adjacent building is directly incident on the illuminance sensor provided on the ceiling surface, or white paper with high light reflectance is placed directly under the illuminance sensor. In some cases, since the illuminance detected by the illuminance sensor is increased, the light may be dimmed in a direction that reduces the light output of the lighting device. For this reason, there is a problem that the actual desk top or floor surface is below the set illuminance.

  For example, Patent Document 1 proposes an illumination control device that keeps the illuminance of a desk or a floor almost constant when external light or light with high illuminance is directly incident on the illuminance sensor.

The lighting control device proposed in Patent Literature 1 includes a lighting fixture including a lighting load, an illuminance sensor that detects ambient illuminance, and a control unit that controls the light output of the lighting load according to the detection output of the illuminance sensor. In the plurality of lighting control devices, the change width of the light output of each lighting fixture is reset in the substantially same direction based on the light output of each lighting fixture. At least one of the dimming lower limit level and the dimming upper limit level of the change width to be reset is obtained from at least one of the maximum value or the minimum value of the light output of each lighting fixture before resetting.
JP 2000-133471 A

  The lighting control device proposed in Patent Document 1 controls the light output change width based on the light output of each lighting fixture when controlling the light output of the lighting load according to the illuminance detected by each illuminance sensor. Is reset in the same direction. That is, the change range of the light output is reduced, and the light output is controlled in a range close to the average value.

  On the other hand, as a method of making the illuminance substantially constant, an illuminance sensor is provided for each of a plurality of illumination systems composed of a plurality of illumination loads, the illuminance detected by the illuminance sensor is averaged, and the illumination loads of the plurality of illumination systems are Control of the light output is also performed. The method of averaging the illuminance detected by each illuminance sensor and controlling the light output of the illumination loads of multiple illumination systems is, for example, when the illuminator of a certain illumination system is turned off, the illuminance detected by each illuminance sensor is In order to average, control is performed to increase the light output of the lighting load of the lighting system that is turned on to compensate for the lighting system that is turned off.

  That is, when the illuminance detected by each illuminance sensor is averaged to control the light output of a plurality of illumination systems, it is not possible to control only a certain illumination system to a light output different from that of other illumination systems. Further, the illumination control device proposed in Patent Document 1 does not disclose the case where a certain illumination system is set to a light output different from that of other illumination systems, but the illuminance detected by each of the illuminance sensors described above. It seems that it becomes almost the same control as the method of averaging.

  That is, the conventional illumination control device has a problem that the target illuminance cannot be set according to the illumination system or the illumination area.

  The present invention has been made in view of such circumstances, and can stably control the light output from the luminaire according to the target illuminance set for each illumination system or each illumination area, as well as existing illumination. It aims at providing the lighting control apparatus which can be easily installed in a system | strain.

The illumination control device of the present invention according to claim 1 is a plurality of illumination systems comprising one or more lighting fixtures; an illuminance sensor that is arranged in a predetermined illumination system in the plurality of illumination systems and detects illuminance; A dimming unit with an illuminance sensor provided with a dimmer for controlling the dimming of the illumination system; and a plurality of illumination systems other than the illumination system in which the dimming unit with the illuminance sensor is disposed. A slave unit illuminance sensor that detects the illuminance of the illumination system and outputs it to the dimmer with the illuminance sensor; provided in the dimming means with the illuminance sensor, and when the target illuminance of the plurality of illumination systems is the same value The dimming degree of the plurality of illumination systems is set based on the average illuminance calculated from the illuminance detected by the dimming means with the illuminance sensor and the slave unit illuminance sensor, and the target illuminance of the plurality of illumination systems is set to if different, It is provided with a; illumination system becomes quasi and the dimming setting means for setting a dimming degree of each of the plurality of illumination systems based on the dimming degree of the illumination system of the illumination ratio becomes the reference for the other lighting systems It is characterized by.

  The illumination control device according to a second aspect of the present invention is the illumination control device according to the first aspect, wherein the dimming degree setting means uses only the illuminance detected by the dimming means with the illuminance sensor. When the illuminance detected by the slave unit illuminance sensor is input in the operation state for setting the dimming degree, the average illuminance calculated from the respective illuminances detected by the dimming means with the illuminance sensor and the slave unit illuminance sensor The dimming degree of the plurality of illumination systems is set based on the above.

  The illumination control device according to a third aspect of the present invention is the illumination control device according to the first aspect, wherein the dimming degree setting means is configured to adjust the dimming means with illuminance sensor and the dimming means when the target illuminances of the plurality of illumination systems are different It is characterized in that the average illuminance is calculated by weighting according to the illuminance detected by the slave device illuminance sensor.

  The illumination control device according to a fourth aspect of the present invention is the illumination control device according to the first aspect, wherein the dimming degree setting means includes the illuminance detected by the dimming means with the illuminance sensor and the slave unit illuminance sensor. The light control range setting means for setting the light control degree of the illumination system detected by the at least one illuminance sensor and setting the limit value of the light control range of the other illumination system based on the light control degree is provided. It is a feature.

  The illumination control device according to a fifth aspect of the present invention is the illumination control device according to any one of the first to fourth aspects, wherein the dimming degree setting means is provided in the dimming final stage with the illuminance sensor and the slave unit illuminance sensor. When the detected illuminance is less than or equal to a predetermined value, it is excluded from the dimming degree setting of the illumination system.

  In the present invention, the definitions and technical meanings of terms are as follows.

  The lighting system is divided into lighting areas each having one or more lighting fixtures composed of lighting lamps, lighting circuits, reflectors, etc., and arranged on the ceiling surface, and the plurality of lighting fixtures for each lighting area are under the same conditions. This is a series of lighting dimming control.

The dimming means with an illuminance sensor adjusts the illumination system based on the illuminance sensor that detects the illuminance of the reflected light from the desk, floor, or wall surface illuminated by light from the luminaire and the illuminance detected by the illuminance sensor. The dimmer with an illuminance sensor is integrally formed with a dimmer that controls light. Moreover, the subunit | mobile_unit illuminance sensor has only the function to detect the illumination intensity of reflected light. In other words, the illuminance detected by its own illuminance sensor and slave illuminance sensor is input to the dimmer of the dimmer with the illuminance sensor, and dimming control is performed for each of the plurality of illumination systems based on the input illuminance. To do . The dimmer with the illuminance sensor has a dimming degree setting means for setting the dimming degree of a plurality of illumination systems based on the illuminance detected by the illuminance sensor and the slave illuminance sensor of the dimmer with the illuminance sensor. have.

Target illuminance is an illuminance set by the operator for each illumination line, sets the target illuminance become dimming at the remote control or the like to the dimming control means for each lighting system of the illuminance sensor with dimmers To do.

  The weighting of illuminance refers to the illuminance of a certain lighting system when setting the dimming degree of another lighting system based on the illuminance detected by the illuminance sensor of the certain lighting system when the target illuminance varies depending on the lighting system. The illuminance is weighted by the ratio of the illuminance detected by the sensor and the illuminance detected by the illuminance sensors of other illumination systems.

  The dimming range is a range in which dimming can be controlled most remarkably, for example, a range of dimming degree 80 to 30 in the range from the maximum value (100) to the minimum value (0) of the dimming degree of the lighting fixture.

  The predetermined value of the illuminance is the minimum illuminance at which the illuminance of the reflected light by the light from the lighting fixture can be detected regardless of the presence or absence of the reflected light by the external light.

  The illumination control device of the present invention has an effect that it can perform stable dimming control according to the target illuminance set for each illumination system, and can be easily installed in an existing illumination system.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The structure of the illumination control apparatus of one Embodiment of this invention is demonstrated using FIG.

  As shown in FIG. 1, the lighting control apparatus according to the embodiment of the present invention includes, for example, lighting fixtures 1a, 1b, 2a, 2b, 3a, and 3b for illuminating each lighting area of a floor with a ceiling. It is provided on the surface. Note that the lighting fixtures 1a, 1b, 2a, 2b, 3a, 3b are composed of a single lighting fixture or a plurality of lighting fixtures.

  The lighting fixtures 1a and 1b are, for example, a lighting system group 1 (hereinafter referred to as a lighting system G1) that is dimmed and controlled under the same conditions with the central portion of the floor as the lighting area, and the lighting fixtures 2a and 2b are provided on the window side portion of the floor. Illumination system group 2 (hereinafter referred to as illumination system G2) that is dimmed and controlled under the same conditions as the illumination area, and the lighting fixtures 3a and 3b are illuminations that are dimmed and controlled under the same conditions using the wall portion of the floor as the illumination area. Let it be system group 3 (hereinafter referred to as illumination system G3).

  The illumination system G1 has the central part of the floor as the illumination area, the illumination system G2 has the window side part of the floor as the illumination area, and the illumination system G3 has the hallway part of the floor or the conference room part partitioned by the partition wall as the illumination area. Also good.

  In the vicinity of the luminaires 1a and 1b of the illumination system G1, there is an illuminance sensor that detects the illuminance of the reflected light from the illumination area of the illumination system G1, and each of the luminaires 1a and 1b of the illumination systems G1 to G3. , 2a, 2b, 3a, 3b is provided with a dimmer S0 with an illuminance sensor (hereinafter referred to as a master unit S0) having a dimmer for dimming control. Illumination sensors S1 and S2 (hereinafter referred to as slave units) for detecting the illuminance of the reflected light from the respective illumination areas G2 and G3 are provided in the vicinity of the illumination fixtures 2a and 2b of the illumination system G2 and the illumination fixtures 3a and 3b of the illumination system G3. Illuminance sensors S1 and S2) are provided. The illuminance detected by the illuminance sensor of the parent device 30 and the child device illuminance sensors S1, S2 is supplied to the dimmer of the parent device S0.

  Although not shown, the dimmer of the master unit S0 sets the dimming degree of the illumination systems G1 to G3 based on the illuminance supplied from the illuminance sensor of the master unit S0 and the slave unit illuminance sensors S1 and S2, Dimming degree setting means for performing dimming control of each of the lighting fixtures 1a, 1b, 2a, 2b, 3a, 3b of the systems G1 to G3 is provided. Further, the dimmer of the master unit S0 can set the target light output of each of the illumination systems G1 to G3, that is, the target illuminance of the illumination area, by an operator by a remote control (not shown).

  That is, the dimmer of the master unit S0 performs dimming control using the illuminance detected by the illuminance sensor so that the target illuminance of each of the illumination systems G1 to G3 set by the operator by remote control or the like is obtained. It has setting means.

  In addition, the lighting control device according to the embodiment of the present invention is configured as a lighting control device capable of dimming control by providing the parent device S0 and the child device illuminance sensors S1 and S2 for the existing lighting systems G1 to G3. it can.

  Next, dimming degree setting means provided in the dimmer of the parent device S0 of the lighting control apparatus according to the embodiment of the present invention will be described with reference to FIGS. The dimming degree setting means provided in the dimmer of the parent device S0 has a dimming control method when the target illuminance of the illumination systems G1 to G3 is the same and when the target illuminance of any of the illumination systems G1 to G3 is different. .

  First, the target illuminances of the illumination systems G1 to G3 are the same, and the dimmer of the parent device S0 performs dimming control on the illumination systems G1 to G3 using only the illuminance detected by the illuminance sensor of the parent device S0. The case of the operation state will be described with reference to FIG.

  As shown in FIG. 2, the illumination systems G1 to G3 have the same target illuminance. For example, the illumination system G1 has an illuminance of 1000 Rex (Lx) detected by the illuminance sensor of the parent device S0, and the illumination system detected by the child device illuminance sensor S1. Assume that the illuminance 1000Lx of G2 and the illuminance 800Lx of the illumination system G3 detected by the slave device illuminance sensor S2 are detected, and the detected illuminance value is supplied to the dimmer of the master device S0. However, the dimmer of the parent device S0 is set to an operation state that controls the dimming of the illumination areas G1 to G3 using only the illuminance 1000Lx detected by the illuminance sensor of the parent device S0. For this reason, the dimmer of the master unit S0 is dimmed and controlled to set the dimming degree of the illumination systems G1 to G3 based on the illuminance 1000Lx detected by the illuminance sensor of the master unit S0. .

  That is, the dimming degrees of the illumination systems G1 to G3 are set so that the illuminance is 1000Lx.

  Next, the illumination system G1 to G3 has the same target illuminance, and the dimmer of the parent device S0 uses the illumination systems G1 to G3 according to the illuminance detected by the illuminance sensor of the parent device S0 and the child device illuminance sensors S1 and S2. The operation state in which the dimming control is performed will be described with reference to FIG.

  The illumination systems G1 to G3 have the same target illuminance, and as shown in FIG. 3, for example, the illumination system G1 detected by the illumination sensor G1 detects the illumination intensity 1000Lx, and the illumination system G2 detects the illumination system G2 illumination intensity. Assume that 1000 Lx and the illuminance 800 Lx of the illumination system G3 detected by the slave device illuminance sensor S2 are detected, and the detected illuminance value is supplied to the dimmer of the master device S0. The dimmer of the parent device S0 calculates an average illuminance obtained by averaging (X) the illuminance values detected by the illuminance sensor of the parent device S0 and the child device illuminance sensors S1 and S2, and based on the average illuminance. The dimming degree of each illumination system G1-G3 is set. Thereby, the lighting systems G1 to G3 are dimmed and controlled with the same dimming degree calculated based on the averaged illuminance.

  On the other hand, the operator set using the illuminance detected by only the illuminance sensor of the parent device S0 is adjusted by the operator described with reference to FIG. 2 using the dimmer of the parent device S0. However, the detected illuminances of the handset illuminance sensors S1 and S2 may be supplied to the dimmer of the base unit S0 due to a setting error.

  In this case, the illuminances of the illumination systems G1 to G3 detected by the illuminance sensor of the master unit S0 and the slave unit illuminance sensors S1 and S2 are averaged by the dimmer of the master unit S0 described with reference to FIG. Dimming control enables stable dimming control of the illumination systems G1 to G3.

  This reliably covers the setting error of the dimmer of the master unit S0 when the master unit S0 and the slave unit illuminance sensors S1 and S2 are installed in the existing illumination systems G1 to G3 to form an illumination control device. Has the effect of

In the state where the target illuminances of the illumination areas G1 to G3 are set to be the same, for example, when the illumination system G3 is in the extinguished state, the illuminance detected by the handset illuminance sensor S2 of the illumination system G3 is outside light or the like a very low intensity value by. Therefore, the dimmer of the parent device S0 excludes the detected illuminance of the illumination system G3 having a predetermined illuminance value or less from the illuminance sensor of the parent device S0 and the child device illuminance sensor S1 that detect the illuminance of the illumination systems G1 and G2. The illuminance values are averaged, and only the illumination systems G1 and G2 are dimmed. As a result, it is possible to perform dimming of G1 and G2 in the lit state without performing dimming control to compensate for the illumination system G3 in the unlit state.

  Next, the dimming degree setting by the dimming degree setting means of the dimmer of the master unit S0 when the illumination systems G1 to G3 have different target illuminances depending on the operator will be described with reference to FIGS.

In the dimmer of the parent device S0, it is assumed that the illumination systems G1 and G2 are set to the same brightness in the office, for example, and the illumination system G3 is set to be darker than the illumination systems G1 and G2 in the hallway, for example. In the state set to the target illuminance, the dimmer of the parent device S0 performs the averaging control of the respective illumination systems G1 to G3 with reference to the work place. In state lighting systems G1 to G 3 is set in each of the target illumination, as shown in FIG. 4, the illuminance sensor of the master unit S0 detects the illuminance 1000Lx illumination system G1, handset illuminance sensor S1 is illuminated The illuminance 1000Lx of the system G2 is detected, and the slave device illuminance sensor S2 detects the illuminance 800Lx of the illumination system G3, and each illuminance is supplied to the dimmer of the master device S0. The dimmer of the master unit S0 is based on the illuminance in the office, and averages (X) the detected illuminance supplied from the illuminance sensor of the master unit S0 and the slave unit illuminance sensor S1 to obtain the average illuminance state. Obtain the dimming degree of It is assumed that the obtained dimming degree is 50% (that is, dimming degree when the illumination systems G1 and G2 have an average illuminance of 1000 Lx). The dimmer of the parent device S0 calculates the dimming degree of the lighting system G3 based on the average illuminance of the lighting systems G1 and G2 and the dimming degree of 50%. The calculation of the dimming degree of the lighting system G3 is obtained by multiplying the average illuminance of the lighting systems G1 and G2 and the illuminance ratio of the lighting system G3 by the dimming degree of the lighting systems G1 and G2 (G3 illuminance / average illuminance of G1 and G2 × G1, G2 dimming degree = 800 Lx / 1000 Lx × 50% = 40%). From this calculation result, the dimmer of the parent device S0 performs 50% dimming for the illumination systems G1 and G2, and 40% dimming for the illumination system G3. That is, each dimming degree is set by the ratio of the illuminance of the lighting systems G1 and G2 in the office and the illuminance of the lighting system G3 in the hallway.

  Next, the average dimming control of the illumination systems G1 to G3 will be described with reference to the illuminance of the illumination system G3, which is a corridor, with reference to FIG. Note that the brightness settings and the detected illuminance of the illumination systems G1 to G3 are the same as those in FIG.

  It is assumed that the dimming degree of the illuminance 800Lx of the reference illumination system G3 is 40%. The dimmer of the parent device S0 calculates the dimming degree of the illumination systems G1 and G2 based on the dimming degree of 40% when the illumination system G3 has an illuminance of 800 Lx. The dimming degree of the illumination systems G1 and G2 is calculated by multiplying the ratio of the illuminance 800Lx of the illumination system G3 and the illuminance 1000Lx of each of the illumination systems G1 and G2 by the dimming degree 40% of the illumination system G3 (G1 or G2 illuminance / G3 illuminance × G3 dimming degree = 1000 Lx / 800 Lx × 40% = 50%). From this calculation result, the dimmer of the parent device S0 performs 50% dimming for the illumination systems G1 and G2, and 40% dimming for the illumination system G3.

  Note that setting the dimming degree of another lighting system on the basis of the dimming degree of a certain lighting system means that the dimming is the most within the range of the maximum dimming degree (100) to the minimum (0) of the lighting fixture. It is possible to perform dimming control in a range that can be remarkably controlled, for example, in the range of 80 to 30 dimming degrees.

  That is, when different target illuminances are set for the illumination systems, the illuminance is weighted in comparison with the illuminance detected for each illumination system, thereby allowing dimming with the target illuminance of each illumination system.

  As described above, the illumination control device according to an embodiment of the present invention can perform stable dimming control by averaging the illuminance detected for each illumination system when the target illuminance of the illumination system is the same. It becomes. Further, when there are illumination systems having different target illuminances, it is possible to perform optimum dimming according to the target illuminance of the illumination system by weighting the illuminance of the reference illumination system and the illuminance of other illumination systems.

  In addition, in the above-mentioned, each lighting system G1-G3 is provided with lighting fixtures 1a, 1b, 2a, 2b, 3a, 3b, and each lighting fixture 1a, 1b, 2a, 2b, 3a, 3b is single or Although it demonstrated using the example of several lighting fixtures, each lighting system | strain G1-G3 does not need to have several lighting fixtures, and may be one lighting fixture, and it is the operation control of lighting, light extinction, and light control on the same conditions. The range of the target to be shown.

The block diagram which shows the whole structure of the illumination control apparatus of one Embodiment of this invention. Explanatory drawing explaining the effect | action of 1st light control when the target illumination intensity of the illumination system in the illumination control apparatus of one Embodiment of this invention is the same. Explanatory drawing explaining the effect | action of the 2nd light control when the target illumination intensity of the illumination system in the illumination control apparatus of one Embodiment of this invention is the same. Explanatory drawing explaining the effect | action of the 1st light control when the target illumination intensity of the illumination system in the illumination control apparatus of one Embodiment of this invention differs. Explanatory drawing explaining the effect | action of the 2nd light control when the target illumination intensity of the illumination system in the illumination control apparatus of one Embodiment of this invention differs.

Explanation of symbols

  1-3 ... Lighting fixture, G ... Illumination system group, S0 ... Light control device (parent machine) with illumination sensor, S1, S2 ... Child machine illumination sensor.

  Attorney Susumu Ito

Claims (5)

Multiple lighting systems consisting of one or more lighting fixtures;
A dimming unit with an illuminance sensor provided with an illuminance sensor that is arranged in a predetermined illumination system in the plurality of illumination systems and detects illuminance; and a dimmer that controls dimming of the plurality of illumination systems;
A slave unit illuminance sensor that is arranged in each of a plurality of illumination systems other than the illumination system in which the dimming means with the illuminance sensor is arranged, detects the illuminance of the arranged illumination system, and outputs the illuminance to the dimmer with the illuminance sensor; ;
When the illuminance sensor-equipped dimming means has the same value of the target illuminance of the plurality of illumination systems, it is calculated from the illuminance detected by the illuminance sensor-equipped dimming means and the slave unit illuminance sensor. When the dimming degree of the plurality of illumination systems is set based on the average illuminance, and the target illuminances of the plurality of illumination systems are different , the illuminance ratio between the reference illumination system and another illumination system and the reference illumination Dimming degree setting means for setting the dimming degree of each of the plurality of illumination systems based on the dimming degree of the system;
An illumination control device comprising:   The dimming degree setting means receives the illuminance detected by the slave unit illuminance sensor in an operation state in which dimming degrees of the plurality of illumination systems are set using only the illuminance detected by the dimming means with the illuminance sensor. In this case, the dimming degree of the plurality of illumination systems is set based on an average illuminance calculated from each illuminance detected by the illuminance sensor-equipped dimming means and the slave unit illuminance sensor. The lighting control apparatus according to 1.   The dimming degree setting means calculates the average illuminance by weighting according to the illuminance detected by the dimming means with illuminance sensor and the slave unit illuminance sensor, when the target illuminance of the plurality of illumination systems is different. The illumination control device according to claim 1.   The dimming degree setting means sets the dimming degree of the illumination system detected by the at least one illuminance sensor among the illuminances detected by the dimming means with the illuminance sensor and the plurality of slave unit illuminance sensors, 2. The illumination control device according to claim 1, further comprising a dimming range setting means for setting a limit value of the dimming range of another illumination system based on the dimming degree.   The dimming degree setting means is excluded from the dimming degree setting of the illumination system when the illuminance detected by the dimming means with the illuminance sensor and the slave unit illuminance sensor is a predetermined value or less. 5. The lighting control apparatus according to any one of 4 to 4.

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