JP2010186700A - Illuminating device and lighting control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating device constituted to contribute to a user's convenience in accordance with the condition of a light-shielding means such as a blind, and at the same time to perform dimming control for appropriate illuminance; and to provide a lighting control system equipped with the illuminating device and the light-shielding means for shielding the light from coming into. <P>SOLUTION: The illuminating device 1 determines a target value in the optical output of a light source 13 in accordance with an ambient brightness, and lights up the light source 13 according to a determined value. The illuminating device 1 is constituted to adjust the target value on the basis of information indicating the condition of an electric blind 2 to shield the light. As a result, the appropriate illuminance can be achieved even when an outdoor light is taken through constraint by the electric blind 2. Because the dimming control of the illuminating device 1 is performed on the basis of information indicating the opening/closing condition of the electric blind 2, the appropriate dimming control can be expected even when the condition of the electric blind 2 is changed in accordance with a user's favor, resulting in contributing to the user. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes an illuminating device configured to control the light output of a light source according to ambient brightness, and the illuminating device and a light shielding unit that shields light, and the illumination device cooperates with the light shielding unit. The present invention relates to a lighting control system configured to control an apparatus.

  2. Description of the Related Art As lighting devices used for indoor lighting such as houses and offices, lighting devices including light sources such as incandescent bulbs, fluorescent lamps, and light emitting diodes (hereinafter abbreviated as LEDs) are used. The brightness in the vicinity of the lighting device is affected by light emitted from the light source of the lighting device, sunlight incident from a window, light emitted from the light source of another lighting device, or the like. Conventionally, an illumination control system configured to control the light output of a light source in accordance with a detection value given by an illuminance sensor has been proposed in order to automatically adjust the brightness in the vicinity of the illumination device to a desired brightness. (For example, refer to Patent Document 1).

  An illumination control system disclosed in Patent Document 1 includes an illuminance sensor, a dimming control device that calculates a dimming level for the lighting device based on illuminance measured by the illuminance sensor, and a dimming level signal from the dimming control device. And a dimming terminal for adjusting the illuminance of the lighting device. And, by extracting only detection values whose variation is within the allowable range with respect to the reference level from the detection values detected within a predetermined detection period by the illuminance sensor, accurate measurement that eliminates the influence of noise The illumination device is configured to adjust the illumination intensity based on the illumination intensity.

  In the illumination control system according to Patent Document 1, since dimming control is performed based on the illuminance detected by the illuminance sensor, the illuminance of the illumination device is used when the room is bright due to outdoor light such as sunlight incident from the window. And the detected illuminance can be controlled to be a constant target value. However, when the incidence of light is limited by the blinds provided in the window, the range of brightness is limited, so the illuminance detected by the illuminance sensor and the illuminance at the place where brightness is actually required (for example, on a desktop There is a problem that a proper dimming control cannot be performed.

  In recent years, there has been proposed an illumination control system configured to control a light shielding unit that shields light and an illumination device in order to perform appropriate dimming control while saving energy (for example, , See Patent Document 2).

  The illumination control system disclosed in Patent Document 2 includes an outdoor light control means (light shielding means) that controls the incidence of outdoor light from a window, an illumination device that illuminates the room, and an outdoor light illuminance meter that measures the illuminance of outdoor light. An illuminator that measures the illuminance of room light by the illuminator, and the integrated value of illuminance measured by the outdoor light illuminometer and the indoor light illuminometer are substantially constant at a predetermined ratio for each time zone. And control means for adjusting the incident light level in the outdoor light control means.

  In the illumination control system according to Patent Document 2, based on the integrated value of illuminance measured by two illuminance meters, an outdoor light illuminance meter and an indoor light illuminance meter, these ratios are substantially constant at a predetermined ratio for each time zone. As described above, the illuminance and the incident light level are adjusted, and when the illuminance of the room light is insufficient, the required illuminance can be secured by increasing the illuminance of the lighting device. As a result, necessary illuminance can be ensured while taking in outdoor light to save energy.

JP 2002-98588 A JP 2006-210045 A

  In the illumination control system according to Patent Document 2, the blind slat angle, which is the incident light level in the outdoor light control means, is changed based on the integrated value of the illuminance of the outdoor light and the indoor light. For this reason, even in the same time zone, the angle of the slats of the blinds differs depending on the weather, which may give the user a feeling of strangeness. This lighting control system is not intended for the case where the user changes the angle of the blind slats according to his / her preference, and is configured to perform appropriate dimming control for the convenience of the user. It has not been.

  The present invention has been made in view of such circumstances, and contributes to the convenience of the user according to the state of the light shielding means such as the blinds, so that dimming control can be performed to obtain appropriate illuminance. An object of the present invention is to provide an illumination control system that includes the configured illumination device, and the illumination device and a light shielding unit that shields light, and that can appropriately perform dimming control of the illumination device in cooperation with the light shielding unit. And

  A lighting device according to the present invention determines a target value of light output of a light source according to ambient brightness, and in a lighting device that turns on the light source based on the determined target value, a state of a light shielding unit that blocks light The target value is configured to be corrected based on information indicating the above.

  In the present invention, the target value of the light output of the light source is determined according to the ambient brightness, and the determined target value is corrected based on the information indicating the state of the light shielding means. Based on the information indicating the state of the light shielding means, for example, by adjusting the incidence of outdoor light such as sunlight using the light shielding means such as a blind into the room, the indoor ceiling direction becomes brighter and the floor direction becomes brighter. The target value is appropriately corrected in consideration of the influence of incident light on the brightness of the surroundings of the lighting device, such as a state or a state in which the whole is brightened. This makes it possible to obtain appropriate illuminance even when taking in outdoor light while being restricted by the light shielding means. Since dimming control of the lighting device is performed based on the information indicating the state of the light shielding means, even when the state of the light shielding means is changed according to the user's preference, appropriate dimming control can be performed. This is useful for the convenience of the user.

  An illumination apparatus according to the present invention includes an illuminance sensor that detects ambient brightness, a determination unit that determines the target value according to the detected brightness, a reception unit that receives information from the light shielding unit, The image processing apparatus includes a correction unit that corrects the target value according to received information, and a control unit that controls the light output of the light source so that the corrected target value is obtained.

  In the present invention, the ambient brightness is detected by the illuminance sensor, the target value of the light output of the light source is determined by the determining means according to the detected brightness, and the determined target value is received by the receiving means. The light output of the light source is controlled by the control means so that the correction is made in accordance with the information from the light shielding means and the corrected target value is obtained. Based on the information indicating the state of the light shielding means, the influence of incident light on the brightness of the surroundings of the lighting device is taken into account, and the target value is appropriately corrected to incorporate outdoor light while being restricted by the light shielding means. Even in this case, it is possible to obtain appropriate illuminance. Since dimming control of the lighting device is performed based on the information indicating the state of the light shielding means, even when the state of the light shielding means is changed according to the user's preference, appropriate dimming control can be performed. This is useful for the convenience of the user.

  The illumination device according to the present invention includes a changing unit that receives an operation of changing the target value.

  In the present invention, since the operation for changing the target value is received by the changing means, the measurement value of the illuminance sensor due to the difference in the distance from the window of the installation location and the reflectance of the ceiling and the floor surface The desired brightness can be obtained by changing the target value of the dimming control with respect to the measurement value of the illuminance sensor in order to correct the difference or according to the preference of the user. As a result, it contributes to the convenience of the user and can appropriately perform dimming control of the lighting device.

  The illumination device according to the present invention changes the dimming control time for controlling the light output of the light source when it is determined that the light shielding unit has a predetermined state change based on the information from the light shielding unit. It is configured.

  In the present invention, the dimming control time for controlling the light output of the light source is changed when it is determined that the light shielding means has a predetermined state change. For example, when the blind as a light shielding means is changed from an open state to a closed state, in other words, when the brightness changes due to a manual operation rather than a change in weather, the light control time is made shorter than the normal dimming control time. This makes it possible to perform the necessary dimming control in a short time, which contributes to the convenience of the user.

  The illumination device according to the present invention includes a person detection unit that detects the presence or absence of a person, and the determination unit is configured to change the target value according to the presence or absence of the person detected by the person detection unit. It is characterized by being.

  In the present invention, since the target value is changed according to the presence or absence of the person detected by the person detecting means for detecting the presence or absence of a person, the brightness is adjusted when there is no person. Energy saving can be achieved by setting the target value to be suppressed.

  An illumination control system according to the present invention includes a light shielding unit that shields light and the illumination device according to the above-described invention.

  In the present invention, since the light shielding means for shielding light and the illumination device described in the above-described invention are provided, the light shielding means contributes to the convenience of the user according to the state of the light shielding means such as a blind. The dimming control of the illuminating device can be appropriately performed so that appropriate illuminance can be obtained in cooperation with the means.

  In the illumination control system according to the present invention, the light shielding means is a blind capable of shielding light by changing an angle of a slat, and is configured to transmit opening / closing information of the light shielding means to the illumination device. Features.

  In the present invention, since the blind is used as the light shielding means and the blind opening / closing information is transmitted to the lighting device, even when the incidence of outdoor light such as sunlight is limited by the blind, Light control of the lighting device can be appropriately performed, and appropriate illuminance can be obtained.

  In the illumination control system according to the present invention, the light shielding means includes a driving means for changing the angle of the slat and / or a lifting operation, and a transmission means for transmitting the opening / closing information of the light shielding means according to the operation of the driving means. It is characterized by providing.

  In the present invention, it is provided with driving means for changing the angle of the slat and / or raising / lowering operation, and transmission means for transmitting the opening / closing information of the light shielding means according to the operation of the driving means. It is possible to appropriately perform dimming control of the lighting device according to elevation and / or elevation, and obtain appropriate illuminance.

  The illumination control system according to the present invention is characterized in that the transmitting means and the receiving means are of an infrared communication system.

  In the present invention, since the transmitting means of the light shielding means and the receiving means of the illumination device are infrared communication systems, it is possible to easily set one-to-one or one-to-multiple combinations simply by matching the communication directions. it can.

  According to the present invention, according to the state of the light shielding means such as the blind, it is convenient for the user, and the dimming control of the lighting device can be appropriately performed so as to obtain an appropriate illuminance in cooperation with the light shielding means. .

It is a schematic diagram which shows the whole structure of the illumination control system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the control system of the principal part of the illumination control system which concerns on Embodiment 1 of this invention. 4 is a flowchart showing a procedure of dimming control of the lighting apparatus according to Embodiment 1. It is a block diagram which shows the structure of the control system of the principal part of the illumination control system which concerns on Embodiment 2 of this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a schematic diagram showing the overall configuration of the illumination control system according to Embodiment 1 of the present invention. FIG. 2 is a block diagram showing a configuration of a control system of a main part of the illumination control system according to Embodiment 1 of the present invention.

  The illumination control system according to the present embodiment is installed in a room and illuminates the entire room, an electric blind 2 that is provided in a window and shields light, and the illuminator 1. An infrared remote controller 3 (hereinafter abbreviated as a remote controller) that accepts an operation by the user and a blind centralized control device 4 that controls the electric blind 2 that controls the blinds of the entire building.

  As shown in FIG. 1, the illuminating device 1 has a flat and elongated rectangular parallelepiped shape, and the surface on the exit side of the illumination light is substantially rectangular. An illuminance sensor 11 that detects the brightness around the illumination device 1 is provided on one side in the longitudinal direction of the illumination device 1. The illuminance sensor 11 is a known illuminance sensor including a light receiving unit such as a phototransistor or a photodiode, and detailed description thereof is omitted.

  As shown in FIG. 2, a controller 12 is connected to the illuminance sensor 11. The control unit 12 includes an A / D conversion unit 121, an output determination unit (determination unit) 122, a storage unit 123, a timer unit 124, and an output control unit 125. An A / D conversion unit 121, a storage unit 123, a timer unit 124, and an output control unit (control unit) 125 are connected to the output determination unit 122, respectively.

  A detection value detected by the illuminance sensor 11 at a predetermined sampling period is given to the A / D converter 121. The A / D conversion unit 121 converts the given analog signal into a digital signal, and gives the converted digital signal to the output determination unit 122.

  The output determination unit 122 reads the control program and the determination value stored in the storage unit 123, and the detected value of the illuminance sensor 11 given via the A / D conversion unit 121 and the storage unit according to the read control program The target value of the light output of the light source 13 corresponding to the brightness around the lighting device 1 is determined using the determination value read from 123. The target value is determined based on a value obtained by averaging the detection value of the illuminance sensor 11 during a predetermined averaging time counted by the timer unit 124. The output determination unit 122 gives the determined target value to the output control unit 125.

  The light source 13 is connected to the output control unit 125. As shown in FIG. 1, the light source 13 includes a substrate having a rectangular plate shape and a plurality of LEDs provided in a matrix on the substrate. The output control unit 125 generates a dimming signal according to the target value given by the output determining unit 122, and performs dimming control by causing the light source 13 to emit light according to the generated dimming signal. The dimming signal is a current signal according to the current-luminance characteristics of the LED, and is, for example, a signal such as an analog current signal or a pulse width modulation signal.

  The infrared communication unit 14 is connected to the output determination unit 122 of the control unit 12, and the infrared communication unit 14 receives a signal from the electric blind 2 and gives it to the output determination unit 122. Further, the infrared communication unit 14 receives a signal from the remote controller 3 and gives it to the output determination unit 122. The remote control 3 has a flat, substantially rectangular parallelepiped casing, and a plurality of keys for operation by a user are provided on one surface of the casing. An infrared communication unit (not shown) that transmits a signal in accordance with the operation of the key is provided. A plurality of keys are a power key that accepts an operation to turn on / off, a light output level change key that accepts an operation to change the light output level of the light source 13, an automatic key, +,-, and R sensitivity adjustment keys (changing means). Etc. The output determination unit 122 is configured to determine the light output of the light source 13 based on the given signal.

  The electric blind 2 includes a plurality of slats 21 arranged in parallel in the vertical direction, a driving unit (driving means) 22 connected to the slats 21 for changing the angle of the slats 21 and / or moving up and down, and the driving unit. 22, a drive control unit 23 that controls the operation of the slat 21, an operation unit 24 that receives a user's operation with respect to the angle and / or elevation of the slat 21, an infrared communication unit 25 that communicates with the lighting device 1, and a blind of the entire building And a network communication unit 26 that performs communication with the blind centralized control device 4 that controls the control. The drive control unit 23 is connected to a drive unit 22, an operation unit 24, an infrared communication unit 25, and a network communication unit 26.

  The electric blind 2 is configured to adjust the slats 21 in accordance with an instruction given by the blind centralized control device 4 so that the light from the window enters the room optimally. For example, the blind central control device 4 gives an instruction to the drive control unit 23 via the network communication unit 26 according to the season, the direction of the window in which the electric blind 2 is provided (for example, the south surface), and the time zone, and drive control is performed. The unit 23 is configured to change the angle of the slat 21 and / or move up and down in accordance with a given instruction. Thereby, for example, during daytime, the electric blind 2 is in an open state (a state in which the slat 21 is raised and the light incident on the room from the window is not controlled), and outdoor light such as sunlight is emitted. On the other hand, in the evening time zone when the western sun enters the room, the angle of the slat 21 is changed by the angle control of the slat 21 so that the sun does not directly hit the user's face or the display screen. Can be controlled in a partly appropriate manner. In addition, the electric blind 2 is configured such that the open / close state of the electric blind 2 can be changed by an operation unit 24 provided individually in the electric blind 2, whereby the user can change the open / close state according to his / her preference. Can be changed.

  Information indicating the open / closed state of the electric blind 2 determined by the angle of the slat 21 and the elevation of the electric blind 2 is given to the control unit 12 by the infrared communication unit 25 via the infrared communication unit 14 of the lighting device 1.

  FIG. 3 is a flowchart showing a processing procedure of dimming control of the lighting apparatus 1 according to the first embodiment. After the lighting device 1 is powered on, the control unit 12 turns on the light source 13 at the upper limit output (step S1), and takes in information indicating the open / closed state of the electric blind 2 from the electric blind 2 (step S2). For example, 100% output is set as the upper limit output. The upper limit output can be changed by setting using the remote controller 3 or the like. Information indicating the open / closed state of the electric blind 2 is represented by the angle of the slat 21 and the lifted / lowered state.

  Based on the information indicating the open / closed state of the electric blind 2 taken in step S2, the determination value for the illuminance stored in the storage unit 123 is read and set (step S3).

  Next, the detection value given by the illuminance sensor 11 is taken in (step S4), and information indicating the open / closed state of the electric blind 2 is taken in from the electric blind 2 again (step S5).

  Based on the information indicating the open / closed state of the electric blind 2 taken in step S5, it is determined whether or not the electric blind 2 has changed state, such as the angle of the slat 21 being changed (step S6). In step S6, when the state of the electric blind 2 is changed, in other words, when the angle of the slat 21 is changed or the lifting / lowering operation is performed (step S6: YES), it is determined whether the state change is a predetermined state change. (Step S7). The predetermined state change is, for example, when the electric blind 2 is changed from the open state to the closed state, or when the angle of the slat 21 is changed from a constant state such as 45 ° to the closed state. On the other hand, when there is no state change in the electric blind 2 in step S6 (step S6: NO), the process proceeds to step S10.

  In step S7, when the electric blind 2 has a predetermined state change (step S7: YES), the process proceeds to step S8. On the other hand, in step S7, when there is no predetermined state change in the electric blind 2 (step S7: NO), the process returns to step S3 to repeat a series of operations.

  In step S8, the determination value for the illuminance stored in the storage unit 123 is read and set based on the information indicating the open / closed state of the electric blind 2 captured in step S5. Next, the detection value given by the illuminance sensor 11 is taken in (step S9), and the process proceeds to step S10.

  In step S10, the light source output level is determined using the detection value of the illuminance sensor captured in step S4 (or step S9) and the determination value for the illuminance set in step S3 (or step S8). .

  The illuminance used for the determination of the light source output level is the illuminance averaged during a predetermined averaging time measured by the timer unit 124 using the detection value of the illuminance sensor 11. This averaging time uses the detection value of the illuminance sensor captured in step S4 when the detection value of the illuminance sensor captured in step S4 is used (when there is no predetermined state change in the electric blind 2). In the case (the electric blind 2 has a predetermined state change), and the latter averaging time is set to be shorter than the averaging time in the former normal light control. is there.

  The reason for increasing the averaging time in the former case is that the dimming control of the light source 13 frequently changes each time a sudden change in the brightness of outdoor light due to weather changes such as clouding on the sun. This is because the dimming control is performed without causing the user to feel uncomfortable. Since the dimming control is not possible during the averaging time, when the electric blind 2 has a predetermined state change, that is, for example, when the electric blind 2 is changed from the open state to the closed state, the angle of the slat 21 is changed. When the state is changed from a constant state such as 45 ° to the closed state, in step S8, the determination value corresponding to the open / close state of the electric blind 2 stored in the storage unit 123 is read and set, and normal averaging is performed. The illuminance is obtained from the detection value of the illuminance sensor 11 in a time shorter than the time, and the light source output level is determined based on the obtained illuminance. As a result, it is possible to perform dimming control so that an appropriate illuminance can be achieved in a shorter time with respect to a change in brightness caused by an artificial blind state change that is not a change in weather.

  In this embodiment, the determination of the light source output level based on such illuminance is performed using the table shown in Table 1. The left column of Table 1 shows the determination conditions of the illuminance level with respect to the illuminance averaged as described above, and the right column shows the light source of the optimum illumination device 1 corresponding to the illuminance level classified by the determination condition. 13 output levels are shown.

  As shown in Table 1, the illuminance level is classified into seven illuminance levels according to six threshold values THj (j = 1, 2,..., 6) as determination values. According to the illuminance level classification, seven levels of output levels (5%, 30%, 40%, 50%, 60%, 70%, 100%) are preset. Thereby, the target value of the light output of the light source 13 (any one of the seven output levels) is determined according to the ambient brightness.

  The six threshold values THj (j = 1, 2,... 6) shown in Table 1 are voltage values given by the illuminance sensor 11, for example, and the threshold values TH6> TH5> TH4> TH3> TH2> TH1. The higher the voltage value, the higher the indoor illuminance. Therefore, an illuminance level with a larger threshold number used for determination means that the room is brighter. As the dimming control, the target output level may be lowered. If illuminance ≧ TH6, the output level is 5%, if illuminance ≧ TH5, the output level is 30%, and illuminance ≧ TH4. 40% output level if there is illuminance ≧ TH3, 50% output level if illuminance ≧ TH2, 60% output level if illuminance ≧ TH2, 70% output level if illuminance ≧ TH1, and if illuminance <TH1. The 100% output level is determined as the light output target value.

  Further, the threshold THj (j = 1, 2,... 6) is a value set according to the angle and / or open / closed state of the slat 21 of the electric blind 2, and the current blind using the table shown in Table 2 is used. A threshold value that is a determination value used as a determination condition is set depending on the state.

  As shown in Table 2, the threshold value, which is the determination value shown in the first column of Table 1, is determined according to the three-stage open / close state (open, closed, slat state 1) of the electric blind 2. When the electric blind 2 is in an open state, in other words, when the slat 21 is fixed in a raised state and light entering the room through the window is not controlled, a threshold value THj (j = 1) that is a determination value , 2,... 6), the reference value thj (j = 1, 2,... 6) is set. The reference value thj (j = 1, 2,... 6) indicates that the lighting device 1 is output at an output level determined according to the reference value thj (j = 1, 2,... 6) when the electric blind 2 is open. The room illuminance is set to an appropriate illuminance when lit.

  Further, when the electric blind 2 is in a closed state, in other words, in a state in which the slat 21 is lowered and the slat 21 is closed and the light from the window is blocked and the outdoor light is not taken in. , A threshold value THj (j = 1, 2,... 6) as a determination value is set to a value (thj−A) obtained by subtracting a predetermined correction value A from the reference value thj (j = 1, 2,... 6). . This is because the light of the light source 13 of the illuminating device 1 is reflected by the slat 21 when the electric blind 2 is closed by closing the electric blind 2 at night, compared with the case where the electric blind 2 is open. Even if the illuminance detected by the illuminance sensor 11 is the same value, this means that the desk illuminance becomes brighter.

  Further, when the electric blind 2 is in the slat state 1, in other words, when the angle of the slat 21 is 45 degrees and the outdoor light is restricted to be guided in the ceiling direction, the threshold value THj (j = 1) which is a determination value. , 2,... 6), a value (thj + B) obtained by adding a predetermined correction value B to the reference value thj (j = 1, 2,... 6) is set. This has the meaning of correcting that the illuminance sensor 11 detects that the illuminance sensor 11 is bright even though the ceiling portion is brightened by the outdoor light and the required desktop illuminance is low.

  Thus, since the threshold value THj used for the determination is changed according to the open / closed state of the electric blind 2, the desktop caused by the influence of reflection in the slat 21 when the electric blind 2 is closed or the angle of the slat 21 of the electric blind 2 is used. The deviation between the illuminance and the detection value of the illuminance sensor 11 can be corrected, and optimal dimming control according to the incident state of the outdoor light from the window can be performed.

  The threshold THj, which is the determination value for determining the illuminance level described above, is configured so that the sensitivity can be negatively adjusted or positively adjusted according to the operation of the remote controller 3 by the user. Table 3 shows the table used for this sensitivity adjustment.

  As shown in Table 3, when the signal indicating negative sensitivity adjustment of −1 is received, the output determination unit 122 sets TH6 × (1−K1) as the new threshold ATH6 in the case of the threshold TH6, for example. In this way, adjustment is performed to subtract only the amount (THj × K1) obtained by multiplying each threshold THj by a predetermined correction value K1. In this way, lowering the threshold used for determination is to shift the output level of the light source in the direction of lowering even if the illuminance given by the illuminance sensor 11 is low, and is an adjustment that darkens the target dimming illuminance.

  Also, when a signal of +1 sensitivity plus adjustment is received, for example, in the case of the threshold value TH6, TH6 × (1 + K1) is set as a new threshold value ATH6. In this way, adjustment is performed by adding only the amount (THj × K1) obtained by multiplying each threshold THj by a predetermined correction value K1. Increasing the threshold value used for the determination in this way is to shift the light source output level in the direction of increasing the light source output level even when the illuminance sensor 11 has a high illuminance, which is an adjustment to increase the target dimming illuminance.

  As described above, the threshold THj, which is a determination value for determining the illuminance level, can be positively adjusted or negatively adjusted by the user's operation of the remote controller 3, so the distance from the window of the installation location, the reflectance of the ceiling and the floor surface. In order to correct the difference in the measured value of the illuminance sensor due to the difference in the brightness, or the desk brightness required by the user can be changed according to the work contents or the user's preference, which contributes to the convenience of the user.

  Next, it is determined whether or not it is necessary to change the current light source output level according to the result of the light source output level determined in step S10 (step S11). Whether or not the light source output level needs to be changed is determined based on whether or not the light source output level, which is the target value of the light output of the light source 13 determined in step S10, is different from the current light source output level.

  When it is determined in step S11 that the light source output level needs to be changed (step S11: YES), the output determination unit 122 performs a process for changing the output level of the light source 13 to change the target of the changed light output. A value is given to the output control unit 125, and the output control unit 125 performs dimming control of the light source 13 so as to reach the target value (step S12), and returns to step S4 to perform a series of operations until the power is shut off. repeat.

  On the other hand, when it is determined in step S11 that it is not necessary to change the light source output level (step S11: NO), the light source 13 is turned on at the current light output without changing the light output target value. In step S4, the series of operations is repeated.

  In the illumination control system according to the first embodiment configured as described above, the electric blind corresponding to the control for the electric blind 2 optimum for the user, which is performed by the blind central control device 4 and the operation unit 24 of the electric blind 2. Information indicating the open / close state of 2 is given to the lighting device 1. Based on the given information indicating the open / closed state of the electric blind 2, the table of threshold values THj used for the determination of the dimming control of the lighting device 1 is changed as shown in Table 2. That is, the target value of the light output of the light source 13 determined according to the ambient brightness is corrected based on information indicating the open / close state of the electric blind 2. As a result, it is possible to obtain appropriate illuminance even when outdoor light is taken in while being restricted by the electric blind 2. Since dimming control of the lighting device 1 is performed based on information indicating the open / closed state of the electric blind 2, even when the state of the electric blind 2 is changed according to the user's preference, appropriate dimming control is performed. Can contribute to the convenience of the user.

  In addition, since the remote controller 3 is configured to accept the operation of changing the target value, the difference in the measurement value of the illuminance sensor due to the difference in the distance from the window of the installation location and the reflectance of the ceiling and floor is corrected. Therefore, the desired brightness can be obtained by changing the target value of the dimming control for the measurement value of the illuminance sensor 11 according to the user's preference. As a result, it contributes to the convenience of the user and the dimming control of the lighting device 1 can be appropriately performed.

  Further, when it is determined that the electric blind 2 has a predetermined state change, the dimming control time for controlling the light output of the light source 13 is changed. For example, if the blind as a light-shielding means is changed from the open state to the closed state, in other words, if the brightness changes due to an artificial operation rather than a change in the weather, it is shorter than the normal dimming control time. Therefore, it becomes possible to perform necessary dimming control in a short time, which contributes to the convenience of the user.

  Moreover, since it is comprised so that communication with the illuminating device 1 and the electric blind 2 may be performed by infrared communication, the directivity of communication can be given by aligning the directions of the infrared transmission unit and the infrared reception unit, Group setting of one-to-one or one-to-multiple lighting devices 1 and electric blinds 2 can be performed without requiring complicated initial setting work such as address setting. In addition, the infrared communication unit 14 of the lighting device can also be used as a communication unit with the remote control 3 for dimming operation and / or sensitivity adjustment, and a system can be configured at low cost. Needless to say, the communication method is not limited to the infrared communication method, and may be realized by short-range wireless communication or the like.

  In the present embodiment, the case where the output level is 7 stages and the open / close state of the electric blind 3 is the 3 stages of open, closed, and slat state 1 has been described, but the present invention is not limited to this. More output levels and open / closed stages are more desirable because finer dimming control is possible.

  In the present embodiment, the threshold value is corrected by adding / subtracting the correction value to / from the threshold value used for determination according to the open / closed state of the electric blind 3, but the present invention is not limited to this, and the electric blind 3 is not limited thereto. What is necessary is just to be comprised so that the target value of the light output of the light source 13 can be correct | amended according to the open / close state of. For example, a plurality of tables may be prepared in advance according to the open / close state of the electric blind 3, and the threshold value may be corrected by selecting a corresponding table from these tables.

  Further, in the present embodiment, when performing sensitivity adjustment, the sensitivity is positively adjusted / negatively adjusted by changing the threshold by adding / subtracting the threshold used for determination by the correction value. Although it is configured, a plurality of tables corresponding to the degree of sensitivity adjustment may be prepared in advance, and by selecting the corresponding table from these tables, the sensitivity may be adjusted by changing the threshold value. .

  In this embodiment, the light control time is shortened by shortening the averaging time of the detection values of the illuminance sensor 11, but the light control is performed in the light source output control process in step S12. In order to make the change smooth, when it is configured to change the dimming step by step over a certain time, the dimming control time can be shortened by shortening the time to perform this dimming change. May be.

(Embodiment 2)
FIG. 4 is a block diagram showing the configuration of the control system of the main part of the illumination control system according to Embodiment 2 of the present invention. The output determination unit 122 is connected to a human sensor 15 provided at an appropriate part of the lighting device 1 so that the lower side of the lighting device 1 (the range illuminated by the light source 13) is the detection range. The human sensor 15 is an infrared sensor that receives infrared light and outputs a signal, and a known infrared sensor such as a thermopile using a thermoelectromotive force effect or a pyroelectric material using a pyroelectric effect can be used. Note that the present invention is not limited to the infrared sensor, and any sensor that can detect the presence / absence of a person can be applied instead of the infrared sensor. Since other configurations are the same as those of the first embodiment shown in FIG. 2, the same reference numerals as those in FIG. 2 are assigned to the corresponding configurations, and detailed description of the configurations is omitted.

  The human sensor 15 provides the output determination unit 122 with a signal corresponding to the presence / absence of the detected person. The output determination unit 122 is configured to determine the presence / absence of a person according to a given signal, and to change the determination value according to the presence / absence of the determined person. Specifically, when it is determined that there is a person in the detection range, dimming control is performed as described in the first embodiment, and when it is determined that there is no person in the detection range, the determination value is A certain threshold value THj (j = 1, 2,... 6) is set to 0V. This is because it is not necessary to control the illuminance to an illuminance suitable for work in the first place when there is no person in the detection range. As a result, when there is no person in the detection range, the light source 13 is always turned on at the minimum output level of 5%, and the energy saving performance of the lighting device 1 is performed without performing unnecessary dimming control. Can be increased.

  In the above embodiment, the case where the electric blind 2 is used as the light shielding means has been described. However, the present invention is not limited to this. However, what is necessary is just to have the function to notify the illuminating device 1 of the state of the outdoor light incident restriction.

  Moreover, in the above embodiment, although it has comprised so that the illuminating device 1 may have each different remote control 3, you may comprise so that several illuminating devices may share one remote control. Needless to say. Moreover, in the above embodiment, although the lighting apparatus 1 and the electric blind 2 were each described about one case, it is applicable also when there exist multiple.

  Moreover, in the above embodiment, although the electric blind 2 is provided in the window so as to shield outdoor light, the present invention is not limited to this, and it may be provided so as to shield light from other light sources. . That is, the present invention is applied to an illumination control system configured such that dimming control of the illumination device 1 is performed according to the incident state of light from another light source (the sun, another illumination device, etc.). Is possible.

  Moreover, in the above embodiment, although LED is used as a light source, it is not limited to this, You may use EL (Electro Luminescence), a fluorescent lamp, a light bulb, etc.

  Moreover, in the above embodiment, although the illuminating device installed indoors and illuminating the whole room was demonstrated to the example, it is not limited to this, It can apply also to another type of illuminating device. Furthermore, it goes without saying that the present invention can be implemented in variously modified forms within the scope of the matters described in the claims.

DESCRIPTION OF SYMBOLS 1 Illuminating device 11 Illuminance sensor 12 Control part 122 Output determination part (determination means, correction | amendment means)
125 Output control unit (control means)
13 Light source 14 Infrared communication unit (receiving means)
15 Human sensor (person detection means)
2 Electric blind (shading means)
21 slats 22 drive unit (drive means)
25 Infrared communication part (transmission means)
3 Infrared remote controller (change means)
4 Blind central control device

Claims (9)

In the lighting device that determines the target value of the light output of the light source according to the ambient brightness, and lights the light source based on the determined target value,
An illuminating apparatus configured to correct the target value based on information indicating a state of a light shielding unit that shields light.   An illuminance sensor that detects ambient brightness, a determination unit that determines the target value according to the detected brightness, a reception unit that receives information from the light shielding unit, and the reception unit that receives information from the light shielding unit The lighting device according to claim 1, further comprising: a correction unit that corrects the target value; and a control unit that controls the light output of the light source so as to obtain the corrected target value.   The lighting device according to claim 1, further comprising a changing unit that receives an operation of changing the target value.   A dimming control time for controlling the light output of the light source is changed when it is determined that the light shielding unit has a predetermined state change based on information from the light shielding unit. The lighting device according to any one of claims 1 to 3.   The human detection means for detecting presence / absence of a person is provided, and the determination means is configured to change the target value according to the presence / absence of the person detected by the person detection means. The lighting device according to any one of 2 to 4.   An illumination control system comprising: a light shielding unit that shields light; and the illumination device according to any one of claims 1 to 5.   The said light-shielding means is a blind which can be shielded by changing the angle of a slat, and is configured to transmit opening / closing information of the light-shielding means to the illumination device. Lighting control system.   8. The light shielding unit includes a driving unit that changes a slat angle and / or moves up and down, and a transmission unit that transmits opening / closing information of the light shielding unit according to the operation of the driving unit. The lighting control system described in.   The illumination control system according to claim 8, wherein the transmission unit and the reception unit are of an infrared communication system.

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