JP2012216356A - Lighting control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting control system capable of more completely providing a guidance effect in a human moving direction in an illumination space.SOLUTION: A lighting control section controls a light source section of lighting devices 10a-10c corresponding to a route area RA from a human presence area so that an optical output is different, as compared to a light source section of lighting devices 10d-10f corresponding to any other area than the route area RA.

Description

  The present invention relates to an illumination control system that controls a light source unit according to the presence or absence of a person.

2. Description of the Related Art Conventionally, an illumination control system that controls an illumination device having a light source unit using a sensor is known (see, for example, Patent Document 1).
In the illumination control system of Patent Document 1, the movement of a person photographed by a camera is measured as flow line data, and the illumination space that the light from the lighting device reaches is divided into a plurality of areas, and each area is based on the flow line data. Determine the distribution of people. Then, by using the determination result, lighting by a specific area is turned on brighter than the surroundings, or by changing the light color, it is possible to produce an effect by lighting. With this lighting device effect, for example, it is possible to guide a person to a part that he / she wants to show (appeal) to the person, aiming at the effect of guiding the user's line of sight.

JP 2004-178129 A

  By the way, in the illumination control system as described above, a person can be guided by lighting a specific area of the illumination space (indoor space) brighter than the surroundings. However, since only a part of the area is lit, there is a possibility that the light source part ahead in the movement direction of the person is less conspicuous than the surroundings.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an illumination control system that can more reliably provide a guidance effect in the direction of movement of a person in the illumination space. It is in.

  In order to solve the above problems, an illumination control system of the present invention includes a sensor unit that obtains image data of an illumination space, and an illumination space that is divided into a plurality of areas based on the output result of the sensor unit. A determination unit that determines the presence distribution of a person, and a lighting control unit that controls the light source unit corresponding to each area by changing the illumination condition of each area based on the distribution of the presence area of the person determined by the determination unit A lighting control system having a movement direction determination unit for determining a movement direction of a person in the presence area based on a time series change of the person's presence area, and a movement direction determination unit in the movement direction of the person starting from the person's presence area A route area determination unit that determines a predetermined end point area as a route area, and the lighting control unit determines whether the route area includes the person's presence area. And a light output or light color is controlled to be different to the corresponding light source unit as compared to the light source unit corresponding to the area other than the root area.

  In the above configuration, it is preferable that the lighting control unit controls the light source unit corresponding to the area other than the route area to be dimmed or turned off compared to the light source unit corresponding to the route area.

The said structure WHEREIN: It is preferable to provide the setting change part which can change the area number to the end point area from the person's presence area as the starting point.
In the above-described configuration, it is preferable that an optical axis driving unit that changes an optical axis of the light source unit is provided, and the optical axis driving unit drives the corresponding light source unit to the end point area of the route area.

  In the above configuration, the optical axis driving means preferably drives the corresponding light source unit to the end point area of the route area along the route area.

  ADVANTAGE OF THE INVENTION According to this invention, the illumination control system which can provide a guidance effect more reliably in the moving direction of the person in illumination space can be provided.

It is explanatory drawing for demonstrating the installation aspect of the illumination control system in this embodiment, and an illuminating device. It is a block diagram for demonstrating the electrical structure of the illumination control system and illumination apparatus same as the above. It is a flowchart for demonstrating the example of control of the illuminating device same as the above. It is a flowchart for demonstrating the example of control of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is explanatory drawing for demonstrating the operation example of the illuminating device same as the above. It is a block diagram for demonstrating the electrical structure of the illumination system in another example, and an illuminating device. (A) (b) is a schematic block diagram of the drive mechanism which changes the direction of the optical axis of the light source part in another example. It is a block diagram for demonstrating the electrical constitution of the illumination control system provided with the drive mechanism in the same as the above. It is explanatory drawing for demonstrating the example of a change of direction of the optical axis using the drive mechanism same as the above. It is explanatory drawing for demonstrating the area of the illumination space in another example.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the illumination control system according to the present embodiment controls a plurality of illumination devices 10 a to 10 f and the illumination devices 10 a to 10 f on, for example, a ceiling R in a room K (illumination space). CP and the sensor part S which consists of a thermal image sensor are provided.

  As shown in FIG. 2, each of the lighting devices 10a to 10f includes a plurality of first light source units LS1 to LS6 and first power supply circuits PSC1 to PSC1 that control power supply to the light source units LS1 to LS6. 6 power supply circuit PSC6.

  Each light source unit LS1 to LS6 provided in each of the lighting devices 10a to 10f has the light source units LS1 to LS6 when the illumination space (room K) is divided into six areas A1 to A6 as shown in FIG. The optical axis is provided so as to be approximately the center position of the corresponding areas A1 to A6. Each of the light source units LS1 to LS6 includes, for example, an LED (Light Emitting Diode) element.

  A total of six first power supply circuits PSC1 to PSC6 provided in each of the lighting devices 10a to 10f are provided corresponding to each of the light source units LS1 to LS6, and these power supply circuits PSC1 to PSC6 are controlled by the control unit CP. Independent control is possible in the lighting control unit CP1. Note that, in order from each area A1 to A6, the lighting device 10f including the sixth light source unit LS6 and the sixth power supply circuit PSC6 sequentially corresponds to the lighting device 10a including the first light source unit LS1 and the first power supply circuit PSC1. It is configured as follows.

  The sensor unit S is configured by a thermal image sensor that measures the temperature of an object (in the case of the present embodiment, a person), and the presence or absence of a person can be measured by this temperature change. The sensor unit S is electrically connected to the determination unit CP2 of the control unit CP.

  In the room K in which the illumination control system (illuminating devices 10a to 10f) of the present embodiment is installed, two doors D1 and D2 that can be opened and closed are provided at opposing positions, and the room K is provided at each door D1 and D2. Access to and from is possible.

Next, a control example of the illumination control system including the illumination devices 10a to 10f of the present embodiment will be described.
First, in a state where the lighting devices 10a to 10f (lighting control system) can be driven, the determination unit CP2 of the control unit CP sets “0” as the number of people in each of the preset areas A1 to A6 (step S10). . In the present embodiment, description will be made assuming that the room K (illumination space) is partitioned into six areas A1 to A6. The number of areas and the adjacent relationship between the areas A1 to A6 can be input using a setting input unit (not shown) that can be operated by the user. It is stored in a memory in (determination unit CP2) or an external memory.

  Next, the lighting control unit CP1 of the control unit CP controls the lighting devices 10a to 10f to be turned off based on the condition that the person determined by the determination unit CP2 is absent (step S11). Specifically, if the lighting devices 10a to 10f are in the lighting state, the lighting control unit CP1 of the control unit CP turns off the lighting devices 10a to 10f with the power supply to the lighting devices 10a to 10f being not supplied. Move to the extinguished state. Moreover, if the illuminating devices 10a to 10f are turned off in advance, the lighting control unit CP1 of the control unit CP continues to supply power to the illuminating devices 10a to 10f in a non-supplied state. That is, when the lighting devices 10a to 10f are installed indoors and are in an initial setting state, the operation is started assuming that no person is present.

Then, the determination unit CP2 of the control unit CP from the sensor unit S comprising a thermal image sensor as viewed from the ceiling R side of the chamber K obtains the image I _o of the floor side (updated) to its own internal memory or an external connection The stored data is stored in the external memory (step S12).

Thereafter, the determination unit CP2 of the control unit CP obtains the output image I (t) at the time t from the sensor unit S composed of the thermal image sensor again (step S13).
And control part CP determines whether the number of persons in all the areas A1-A6 in the room K is "0" (step S14).

If the number of people in all the areas A1 to A6 in the room K is “0” (step S14: YES), the control unit CP acquires the background image _Io and the image I (t) acquired in steps S12 and S13. A difference image I _s (t) is calculated by taking the difference (step S15). Incidentally, the difference image I _s (t) is a difference value between pixels having the same coordinates in the background image I _o and the image I (t), calculated for all pixels, and normalized to that value as necessary. It is an image in which the conversion is performed and the value is used as the pixel value of each pixel.

Next, the determination unit CP2 of the control unit CP performs various processes of the room entry detection process (step S16). Specifically, the determination unit CP2 of the control unit CP binarizes the difference image I _s (t) with a preset threshold value. That is, if the difference image I _s (t) is greater than or equal to the threshold for each pixel, the pixel is replaced with, for example, a white pixel, and if less than the threshold, the pixel is replaced with a black pixel. Pixels can be extracted. As a result, if a white pixel is obtained, the sensor unit S generates a binary image data Ib (t) as a result of a state different from that in the background image _Io , that is, a person enters the room. Note that the binary image data Ib (t) is not generated if only a result less than the threshold is obtained for each pixel of the difference image I _s (t).

Next, the determination unit CP2 of the control unit CP determines whether or not a person has entered the room based on whether or not the binary image data Ib (t) has been generated (step S17).
If the binary image data Ib (t) has not been generated (step S17: NO), the determination unit CP2 and the control unit CP repeat the processing from step S10.

  On the other hand, when the binary image data Ib (t) is generated (step S17: YES), the determination unit CP2 outputs a signal indicating that a person has entered the room to the lighting control unit CP1. And lighting control part CP1 controls each light source part LS1-LS6 corresponding to each area A1-A6 on the illumination conditions in the state where the person entered (step S18). In the case of the present embodiment, the light source units LS1 to LS6 of the areas A1 to A6 are controlled according to the scene numbers of the data table as shown in FIG. 9 stored in advance in the lighting control unit CP1 itself or in an external storage unit.

  Next, the lighting control unit CP1 of the control unit CP sets the number of people in at least one area (arbitrary area) to 1 (step S19), and repeats the processing from step S13.

  On the other hand, as shown in FIG. 4, if the number of people in all areas A1 to A6 is not “0” (step S14: NO), the determination unit CP2 determines which area the person is in (step S20). .

Specifically, the determination unit CP2 acquires the output image I (t) of the sensor unit S at a certain time t at the sensor unit S. The determination unit CP2 calculates a difference image I _s (t) from the output image I (t) and the background image I _o acquired in step S12 described above. Then, as performed in step S16 described above, the determination unit CP2 binarizes the difference image I _s (t) with a preset threshold value. That is, for each pixel of the difference image I _s (t), if it is greater than or equal to the threshold, it is replaced with, for example, a white pixel, and if less than the threshold, it is replaced with a black pixel. As a result, if a white pixel is obtained, the sensor unit S generates a binary image data Ib (t) as a result of a state different from that in the background image _Io , that is, a person enters the room. Note that the binary image data Ib (t) is not generated if only a result less than the threshold is obtained for each pixel of the difference image I _s (t). Then, the determination unit CP2 calculates which areas A1 to A6 of the room K a person corresponds to, for example, a white pixel in the binary image data Ib (t) based on the coordinate data.

  Thereafter, the determination unit CP2 calculates how many people are present in each of the areas A1 to A6 where the people are present in Step S20 (Step S21). Specifically, the number of independent white pixel clusters in the binary image data Ib (t) is calculated for each of the existing areas A1 to A6, and the calculation result is set as the number of persons for each area A1 to A6. judge. Incidentally, all threshold processing such as calculation of a lump of white pixels is realized by a labeling method of image processing. In addition, based on knowledge such as the arrangement of the sensor unit S and the size of a person, a block whose pixel area different from the background pixel is less than a specified value or a block having a specified value different from the specified value is not counted as the number of people. You may do it.

Next, the determination unit CP2 determines whether or not the number of people in all the areas A1 to A6 is 0 (step S22).
If the number of people in all the areas A1 to A6 is 0 (step S22: YES), the determination unit CP2 repeats the process from step S10.

  On the other hand, if the number of persons in all the areas A1 to A6 is one or more (step S22: NO), the determination unit CP2 calculates the presence / absence of a person, the number of the area where the person exists, the number of persons, and the like.

  Next, the determination unit CP2 calculates the movement direction I of the person (Step S23). Specifically, the determination unit CP2 calculates the moving direction I of the person based on the history of the presence area derived from the presence area determination processing result. In addition, the determination unit CP2 can calculate the movement direction I from the movement of a person in the same area even when the determination unit CP2 is in the same area. In the former, for example, when a person moves from the area A1 to the area A2, a vector is calculated from the center coordinates of the areas A1 and A2, and the moving direction I is set. In the latter case, the moving direction I in the area can be calculated from the time-series change of the image in the area by the sensor unit S.

  Next, the determination unit CP2 determines the route area RA to the end point area TA, which is the number of areas ahead (two in this embodiment) set from the presence area based on the presence area and the movement direction I of the person. Is determined (step S24). Specifically, the end point area TA in the moving direction I is specified in advance from the memory in the control unit CP (determination unit CP2) or the external memory based on the adjacent relationship information of the areas A1 to A6, and the route area RA up to that point Is calculated. As an example, for example, if the presence area of the person H1 is the area A1 as shown in FIG. 7, the destination area TA (area A3) is the next destination area TA, so the route area RA is the area A1 to the area A3. Become.

  Next, the lighting control unit CP1 controls the corresponding light source units LS1 to LS6 under illumination conditions based on the presence area and the number of people obtained from the determination unit CP2 (step S25). As an example, for example, if the existence area of the person H1 is the area A1 as shown in FIG. 7, the destination area TA (area A3) is two points ahead. Accordingly, since the route area RA becomes the areas A1 to A3, the lighting control unit CP1 lights the light source units LS1 to LS3 of the illumination devices 10a to 10c corresponding to the areas A1 to A3.

After step S25, the determination unit CP2 and the lighting control unit CP1 repeat the process from step S13.
Next, an operation example of the illumination control system including the illumination devices 10a to 10f in which the configuration and control as described above are performed will be mainly described with reference to FIGS.

  In addition, the number of areas from the human presence area to the end point area TA that turns on the light source unit (three in this embodiment) is stored in advance in a memory in the control unit CP (determination unit CP2) or in an external memory.

  As shown in FIG. 5, when no people are present in all the areas A1 to A6 of the room K (lighting space), the lighting control unit CP1 controls each of the areas A1 to A6 under lighting conditions in which no people are present. The light source units LS1 to LS6 of the illumination devices 10a to 10f are controlled so as to be turned off (light emission output 0%).

  As shown in FIG. 6, when a person H1 enters from the door D1, which is an entrance, the lighting control unit CP1 turns on the light source units LS1, LS6 of the illumination devices 10a, 10f corresponding to the areas A1, A6 associated with the entrance. The light output changes from 0% to 30% and lights up. At this time, the lighting control unit CP1 maintains the lighting devices 10b to 10e corresponding to the other areas A2 to A5 in the light-off state (light emission output 0%).

  When the moving direction I of the person H1 existing in the area A1 is calculated by the determination unit CP2, the lighting control unit CP1 moves from the area A1 to the area A3 that is two adjacent areas as shown in FIG. The light emission outputs of the light source units LS1 to LS3 of the lighting devices 10a to 10c are changed to 100% and turned on. At this time, the lighting control unit CP1 turns off the light source unit LS6 of the lighting device 10f corresponding to the area A6 by changing the light emission output from 30% to 0%.

  As shown in FIG. 8, when the person H1 moves from the area A1 to the adjacent area A2, the determination unit CP2 recognizes the area A2 as a person existing area. Then, lighting control part CP1 changes the light emission output of light source part LS2-LS4 of illuminating device 10b-10d corresponding to area A4 which is end point area TA from area A2 which is the moving direction I side, and it lights it. In addition to this, the lighting control unit CP1 changes the light emission output of the light source unit LS1 of the lighting device 10a corresponding to the area A1 where the person H1 is absent from 100% to 0% and turns off the light.

  As shown in FIG. 9, when the person H1 moves from the area A2 to the adjacent area A3, the determination unit CP2 recognizes the area A3 as a person existing area. Then, lighting control part CP1 changes the light emission output of light source part LS3-LS5 of illuminating device 10c-10e corresponding to area A5 which is the end point area TA from area A3 which is the moving direction I side, and it lights it. In addition to this, the lighting control unit CP1 changes the light emission output of the light source unit LS2 of the lighting device 10b corresponding to the area A2 where the person H1 is absent from 100% to 0% and turns off the light.

  As shown in FIG. 10, when the person H1 moves so as to change direction from the area A3 to the area A2 side, the determination unit recognizes the area A2 as a person existing area, and the determination unit CP2 determines that the movement direction I is the area A1. Side. Further, the determination unit CP2 sets the end point area TA on the moving direction I side as seen from the human presence area (area A2) to the area A1 with reference to the adjacent relationship information of the areas A1 to A6 stored in the memory. Then, lighting control part CP1 changes the light emission output of light source part LS2, LS1 of illuminating device 10b, 10a corresponding to area A1 which is end point area TA from area A2 which is the moving direction I side, and it lights it. In addition to this, the lighting control unit CP1 changes the light emission output of the light source unit LS3 of the illumination device 10c corresponding to the area A3 where the person H1 is absent from 100% to 0% and turns off the light.

  As illustrated in FIG. 11, when the person H1 moves from the area A2 to the adjacent area A1, the determination unit CP2 recognizes the area A2 as a person existing area, and the determination unit CP2 has the moving direction I on the area A1 side. Is determined. Further, the determination unit CP2 sets the end point area TA on the moving direction I side as seen from the human presence area (area A1) with reference to the adjacent relationship information of the areas A1 to A6 stored in the memory. To do. Then, lighting control part CP1 changes the light emission output of light source part LS1 of the illuminating device 10a corresponding to area A1 which bears presence area and end point area TA, and it lights it. In addition to this, the lighting control unit CP1 changes the light emission output of the light source unit LS2 of the lighting device 10b corresponding to the area A2 where the person H1 is absent from 100% to 0% and turns off the light.

  As shown in FIG. 12, when the person H1 leaves the area A1 through the door D1, the determination unit CP2 determines that no person is present in all the areas A1 to A6 of the room K (illumination space). In response to this result, the lighting controller CP1 controls the light sources LS1 to LS6 in the areas A1 to A6 to be turned off (light emission output 0%) under illumination conditions in the absence of a person.

Next, the operation of the illumination control system of this embodiment will be described.
In the illumination control system including the illumination devices 10a to 10f of the present embodiment, the light source unit of the route area RA from the person's presence area to the destination area TA that is the destination of the movement direction I after the person's movement direction is determined. It is turned on. The light source parts other than the route area RA are turned off.

Next, characteristic effects of the present embodiment will be described.
(1) Since the lighting control unit CP1 controls the light source unit corresponding to the route area RA from the human presence area so that the light output is different from that of the light source unit corresponding to the area other than the route area RA. The light source part of the route area RA including can be made conspicuous as compared with other light source parts. Thereby, a guidance effect can be reliably given to the moving direction I side of the person in the illumination space.

(2) Since the lighting control unit CP1 controls the light source unit corresponding to the area other than the route area RA to be turned off as an example of changing the light output, the power consumption can be suppressed.
(3) The sensor unit S is composed of a thermal image sensor that senses human heat. Thereby, for example, the presence or absence of a person can be detected more reliably even if the room K in which the lighting devices 10a to 10f controlled by the lighting control system are installed is a dark place.

In addition, you may change the said embodiment of this invention as follows.
In the above embodiment, the second area on the moving direction I side when viewed from the human presence area is the end point area TA. However, the area that is three or more points away or the first area is also the end point area TA. Good.

  In the above embodiment, although not specifically mentioned, for example, to change the number of areas from the current area (existing area) to the end point area TA using a remote controller or a touch panel as a setting changer that can be operated by the user. The trigger signal may be output to the determination unit CP2 that is electrically connected to change the end point area TA. By setting it as such a structure, a user's desired area can be set as an end point area.

In addition, the lighting control system may be configured to identify an individual with a barcode, an IC tag, or the like, so that the end point area TA is individually set and changed to the end point area TA for each individual.
In the above-described embodiment, the thermal image sensor is used as the sensor unit S that detects the presence or absence of a person and the number of persons. However, the present invention is not limited to this. For example, a configuration in which an image sensor such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor is used as the detection unit may be employed.

  In the above embodiment, although not particularly mentioned, the emission colors of the light emitting units LS1 to LS6 may be unified. Moreover, it is good also as a structure from which luminescent color differs for each light source part LS1-LS6.

  -In the said embodiment and the said structure, although the control example of illuminating device 10a-10f was demonstrated using FIG.3 and FIG.4, if it is a category of this invention, it will not restrict to the said control example. In short, the light source unit other than the route area RA on the user's moving direction I side may be configured to be dimmed or extinguished as compared with the light source unit of the route area RA.

  In the above embodiment, the lighting devices 10a to 10f are provided for each of the areas A1 to A6. However, the present invention is not limited to this, and the number of lighting devices may be increased or decreased from the number of areas A1 to A6. .

  When the number of illumination devices is smaller than the number of areas, a drive mechanism 21 for changing the direction of the optical axis OA of the illumination device is provided as shown in FIGS. A configuration in which the optical axis OA of the light source unit 22 is changed so that the area is lit is desirable.

  Here, an example of the drive mechanism 21 will be described. As shown in FIGS. 14 (a) and 14 (b), a substantially disc-shaped base portion 31 of the drive mechanism 21 is installed on the ceiling R. The base portion 31 is provided with a substantially disk-shaped rotating plate 32 that is rotatable with respect to the base portion 31. Two support members 33 that support the light source unit 22 in a tiltable state are provided on the surface of the rotating plate 32 opposite to the base unit 31 side. A drive source (for example, a motor) (not shown) is controlled by the drive mechanism 21 by the drive control unit CP3 of the control unit CP shown in FIG. The light source unit 22 is tilted with respect to the support member 33. The drive mechanism is not limited to the drive mechanism 21 as shown in FIG. 14, and any configuration can be used as long as the position (orientation) of the optical axis of the light source unit of the illumination device can be changed by an actuator.

  Based on the movement direction of the person, the driving mechanism 21 drives the area from the person's presence area shown in FIG. 16 to the end point area TA. In this case, for example, when the movement direction of the person as shown in FIG. 16 calculated by the determination unit CP2 is the route areas R1 to R3, the user can move the desired area by moving along the route area. It is possible to guide through to the end point area TA.

  -Although not mentioned in particular in the said embodiment, you may employ | adopt the structure which provides an optical member or a reflecting plate in each light source part. Moreover, you may employ | adopt the structure which changes the optical axis of a light source part by moving these optical members or a reflecting plate. With such a configuration, it is possible to produce various illumination conditions (scenes). As the optical member, for example, various lenses, prisms, light diffusion filters, condensing filters, polarizing filters, wavelength cut filters, wavelength conversion filters, louvers, and the like can be used. Further, as the reflecting plate, for example, an alumite reflecting plate, an aluminum deposition reflecting plate, a silver deposition reflecting plate, a resin reflecting plate, a cold mirror, or the like can be used.

  In the above embodiment, six lighting devices 10a to 10f are provided for the room K, but the number thereof may be arbitrarily changed. For example, you may change suitably according to the number of areas which divide illumination space (indoor space).

  In the above embodiment, one light source unit is provided for each of the plurality of lighting devices 10a to 10f. However, a configuration in which a plurality of light source units are provided in at least one, a plurality, or all of the lighting devices 10a to 10f. It may be adopted.

In the above embodiment, the plurality of lighting devices 10a to 10f are provided on the ceiling R of the room K. However, for example, they may be provided on the side wall or floor of the room K.
In the above embodiment, a single sensor unit S is provided in the room K. However, a configuration is adopted in which the presence or absence of people and the number of people are detected individually by a plurality of sensor units or by summarizing information of each sensor unit. Also good.

  Moreover, when providing the sensor part S with two or more, you may employ | adopt the structure each provided, for example for each area A1-A6. With such a configuration, it is possible to more reliably detect the presence and number of persons in each area A1 to A6.

  -Although it does not mention in the said embodiment in particular, as shown in FIG. 13, it is good also as a structure which isolate | separated the sensor part S and the control part CP from the some illuminating device (light source part). In this case, communication units C1 and C2 are provided between the sensor unit S and the control unit CP, and various communication signals are transmitted and received by the communication units C1 and C2. In addition, communication units C3 and C4 are provided between the control unit CP and the illumination device 10a, and various communication signals are transmitted and received by the communication units C3 and C4. Further, communication units C3 and C5 are provided between the control unit CP and the lighting device 10b, respectively, and communication signals according to various protocols are transmitted and received by the communication units C3 and C5. Communication signals include DALI (Digital Addressable Lighting Interface), visible light communication, infrared data communication standard (IrDA), RF (Radio Frequency), Zigbee, Bluetooth (registered trademark), wireless LAN standard. (IEEE802.11) and the like are not particularly limited.

  In the above embodiment, the present invention is applied in the room K (illumination space) in which each area A1 to A6 is adjacent in one direction, that is, each area A1 to A6 is adjacent to one or two areas. Not limited to this. For example, the present invention may be applied to a room K (lighting space) in which a certain area is adjacent to three or more areas. As an example, a configuration in which areas are divided into T-shapes as shown in FIG. 17 can be considered. However, the present invention is not limited to this, and an area may be divided into an L shape, an H shape, or a cross shape.

  For example, as shown in FIG. 17, the areas A1 to A6 are divided so that the areas A1 to A6 are adjacent to each other in the same direction as in the above embodiment. For example, the area A4 is divided so as to be adjacent to the area A7 in addition to being adjacent to the areas A3 and A5. The area A7 is divided so as to be adjacent to the area A8 on the side opposite to the area A4. The adjacent information of each area, the distance between the areas, and the like are electrically connected to, for example, the internal memory of the control unit CP (determination unit CP2) or an external memory electrically connected to the control unit CP. It is configured to be referable.

  Then, for example, when a person moves from area A3 to area A8 as shown in FIG. 17, if the number of areas from the end point area TA is “3”, the light sources of area A3, area A4, area A7, and area A8 The light source part in the remaining area is turned off or dimmed. Next, when a person moves to area A4, the light source unit in area A3 is turned off or dimmed from the lighting state, and the light source unit up to area A8 is turned on. Next, when a person moves to the area A7, the light source unit in the area A4 is turned off or dimmed from the lighting state. Thereafter, when a person moves to the area A8, the light source unit in the area A7 is turned off or dimmed from the lighting state.

  -In above-mentioned embodiment, although each light source part LS1-LS6 was comprised with the LED element, it is not restricted to this. For example, an organic EL (Electro-Luminescence) element, an inorganic EL (Electro-Luminescence) element, an HID (High Intensity Discharge) lamp, an incandescent lamp, or the like may be used.

Next, a technical idea that can be grasped from the above embodiment and another example will be added below.
(B) The illumination control system according to any one of claims 1 to 6, wherein the sensor unit is configured by a thermal image sensor.

  In this way, since it is possible to detect the presence or absence of a person with a thermal image sensor that senses the heat of a person, for example, even if the room where the lighting device controlled by the lighting control system is installed is in a dark place The presence or absence of a person can be detected reliably.

  DESCRIPTION OF SYMBOLS 10a-10f ... Illuminating device, 21 ... Drive mechanism (optical axis drive means), 22, LS1-LS6 ... Light source part, I ... Movement direction, CP1 ... Lighting control part, CP2 ... Movement direction determination part and route area determination part Determination unit, S ... sensor unit, A1 to A8 ... area (existing area), H1 ... person, K ... indoor (illumination space), OA ... optical axis, TA ... end point area, RA, R1-R3 ... route area.

Claims (5)

A sensor unit that obtains image data of the illumination space, a determination unit that determines the presence distribution of people in each area in the illumination space that is divided into a plurality of areas based on the output result of the sensor unit, and the determination by the determination unit A lighting control system having a lighting control unit that controls the light source unit corresponding to each area by changing the lighting condition of each area based on the distribution of the presence area of the person to be
A movement direction determination unit for determining a movement direction of a person in the presence area based on a time-series change of the presence area of the person, and a route area from the presence area of the person to a preset end point area in the movement direction of the person A route area determination unit for determining as
The lighting control unit controls the light source corresponding to the route area from the presence area of the person to be different in light output or light color compared to a light source unit corresponding to an area other than the root area. Characteristic lighting control system. The lighting control system according to claim 1.
The lighting control system controls the light source unit corresponding to an area other than the route area to be dimmed or extinguished compared to the light source unit corresponding to the route area. In the lighting control system according to claim 1 or 2,
An illumination control system comprising: a setting changing unit capable of changing the number of areas from the person existing area to the end point area. In the lighting control system according to any one of claims 1 to 3,
An optical axis driving means for changing the optical axis of the light source unit;
The illumination control system, wherein the optical axis driving unit drives the corresponding light source unit to an end point area of the route area. The lighting control system according to claim 4.
The optical axis driving means drives the corresponding light source unit to the end point area of the route area along the route area.

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