Lighting Control System

Abstract

To provide an illumination control system capable of adequately turning on a lighting fixture even if a human exists at the boundary of a plurality of blocks when the illumination space of the lighting fixture is divided into the plurality of blocks to be controlled.SOLUTION: One aspect of the present invention is an illumination control system including: a lighting fixture illuminating an illumination space; a human detection sensor to detect humans in the illumination space; and a control unit to control the lighting fixture based on a detection signal from the human detection sensor. The control unit divides the illumination space into a plurality of blocks so that each block can be controlled for each area.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a lighting control system. [Background technology]

[0002] Lighting control systems that reduce the power consumption of lighting fixtures by turning them off when no one is present in the lighting fixture's illumination area have been known for some time. Patent Document 1 discloses a lighting control system technology that divides the detection range of an image sensor into multiple blocks, detects the presence or absence of a person in each block, and controls the lighting state of lighting fixtures for each block. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2019-117812 Summary of the Invention [Problem to be solved by the invention]

[0004] The lighting control system disclosed in Patent Document 1 above can control the turning on and off of lighting fixtures for each block, but there is a problem in that if a person is present near the boundary between blocks, it is difficult to determine which block the person is in.

[0005] An object of the present invention is to provide a lighting control system that can appropriately control the lighting of lighting devices when controlling the lighting space of lighting devices by dividing it into multiple blocks, even when people are present at the boundary between the multiple blocks. [Means for solving the problem]

[0006] The present disclosure In one embodiment, the lighting control system includes: A lighting fixture for illuminating the lighting space; a human detection sensor for detecting a human in the lighting space; a control device that controls the lighting device based on a detection signal from the human detection sensor; A lighting control system comprising: The control device 、 The lighting sky Multiple overlapping parts are set between Number detection area In the method, a different combination of the lighting devices is set to correspond to each of an area where the plurality of detection areas overlap and an area where the plurality of detection areas do not overlap, and the lighting devices corresponding to an area including a position of a person detected by the human detection sensor among the overlapping area and the non-overlapping area are controlled. Control Ruko It is characterized by do. Effect of the Invention

[0007] According to an embodiment of the present invention, an object of the present invention is to provide a lighting control system that, when controlling a lighting space of lighting fixtures by dividing it into multiple blocks, can appropriately control the lighting of lighting fixtures even when people are present at the boundary between the multiple blocks. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram of a lighting control system. [Diagram 2] FIG. 4 is an explanatory diagram of blocks of an illumination area. [Diagram 3] 13A and 13B are explanatory diagrams of modified examples of blocks of the illumination area. [Figure 4] FIG. 2 is an explanatory diagram of an image sensor. [Diagram 5] 1 is a diagram showing detection of a person between blocks. [Figure 6] FIG. 1 is an explanatory diagram of embodiment 1. [Figure 7] FIG. 1 is an explanatory diagram of embodiments 2 and 3. [Figure 8] 13 is a diagram showing passage through a passage in the fourth and fifth embodiments. [Figure 9] FIG. 13 is an explanatory diagram of the fourth and fifth embodiments in which a passage is provided. [Figure 10] FIG. 13 is an explanatory diagram of the case where area 1 is present while passing through a passage in the fourth and fifth embodiments. [Figure 11] FIG. 13 is an explanatory diagram of the sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a lighting control system according to an embodiment of the present invention will be described in detail with reference to the drawings. However, the following embodiments are merely examples of lighting control systems for embodying the technical ideas of the present invention, and the present invention is not limited to these, and may be equally applied to other embodiments included in the scope of the claims.

[0010] [Embodiment 1] A lighting control system according to a first embodiment of the present invention will be described with reference to FIGS.

[0011] 1 is a block diagram of a lighting control system. The lighting control system includes a lighting controller 10, a personal computer (hereinafter referred to as "PC") 11, a terminal A 12, a terminal B 13, a terminal C 14, a terminal D 15, an image sensor A 16, and an image sensor B 17. The lighting controller 10 is connected to the PC 11 by a LAN 18. The lighting controller 10, the terminals 12-15, and the image sensors 16-17 are connected by a communication line 19 consisting of, for example, a serial communication line. The LAN 18 may be a wired LAN such as Ethernet. The lighting system may also be configured such that at least some of the components are connected by wireless communication.

[0012] A plurality of lighting devices are connected to each of the terminals 12 to 15, and the lighting devices are individually controlled to turn on / off, dim, adjust color, etc. Image sensor A16 is provided at a position corresponding to the lighting fixtures connected to terminals A12, B13, C14, and D15 via signal lines 22, and image sensor B17 is provided at a position corresponding to the lighting fixtures connected to terminal E21 via signal line 22.

[0013] The image sensor A16 is arranged in the lighting space of the lighting fixtures connected to the terminals 12, B13, C14, and D15 via signal lines 22 (omitted below), and is capable of detecting the number of people in the lighting space. In detecting people, the image sensor A16 can determine the detection state of people as at least three types of people states, "present," "moving," and "not present," determine where people are in the block, and further detect the number of people in each state. When detecting a person, the image sensor A16 detects the feet of the center of gravity of the image detected as a person, that is, the point closest to the image sensor, as the position of the detected person.

[0014] "Present" refers to a state in which a person is seated in a designated seat in each block or is stationary without moving for a set period of time or more, and the number of people in such a state is the number of people "present" in that block. "Absent" refers to a state in which no one is seated in a designated seat in each block, and in such a state the number of people in the corresponding block is 0. "Moving" refers to a state in which no one is seated in each block, but people are moving away from or towards their designated seats. The image sensor A16 can also detect the number of people moving in a block in the "present" state. The state of being "present" includes a person who is standing still and not sitting down, a person who has risen from a seat and is about to move, and a person who has moved and is now standing still. In addition, the "absent" state is the state of a person in a block excluding the "present" state and the "moving" state.

[0015] If there is even one person seated in each block, it is in a "present" state, in which case the number of people seated is counted and detected by image sensor A16. On the other hand, if there is no one seated in each block, it is in an "absent" state, in which case the number of people seated in the corresponding block is zero. Also, the number of people moving around in each block is counted as the number of people moving. The same applies to image sensor B17 as to image sensor A16.

[0016] The lighting controller 10 receives information regarding the presence, movement, and absence of people in each block and the number of people from each image sensor A16 via the communication line 19, and controls the lighting fixtures connected to each terminal device 12-15 to turn on, turn off, dim, adjust the color, etc., depending on the information regarding the number of people.

[0017] The lighting controller 10 is connected to a PC 11, and a system administrator can operate the PC 11 to perform various settings of the lighting system (setting the detection area of ​​the image sensor, setting the lighting fixtures to be controlled for the detection area, setting the control state of the lighting fixtures for the detection state, etc.) and monitor the state of the lighting system (dimming rate and color temperature state of the lighting fixtures, state of the detection area of ​​the image sensor and number of people detected, etc.). For example, the PC 11 can be used to set blocks for each lighting area.

[0018] 2 is an explanatory diagram of a block of illumination areas, and describes the illumination areas of the lighting fixtures of the terminals A12 to D15, that is, the detection range of the image sensor A16. Since the illumination ranges of the lighting fixtures of the other terminals are similar to that of the terminal A12, the illumination areas of the terminals A12 to D15 are exemplified below, and descriptions of the illumination areas corresponding to the other terminals are omitted. In addition, Figure 2 shows the size of one side as 7.2 m, but this is just an example and is not limited to this size.

[0019] In Fig. 2, terminals A12 to D15 have 16 lighting fixtures, and image sensor A16 detects the "presence", "movement", and "absence" states and the number of people in these lighting areas for each block. Although not particularly limited, in Fig. 2, image sensor A16 is disposed in the center of the corresponding lighting space, and the lighting space is divided vertically and horizontally into four blocks centered on image sensor A16.

[0020] In block A, four lighting fixtures A1, A2, A3, and A4 are provided in two vertical rows and two horizontal rows. In block B, four lighting fixtures B1, B2, B3, and B4 are provided in two vertical rows and two horizontal rows. In block C, four lighting fixtures C1, C2, C3, and C4 are provided in two vertical rows and two horizontal rows. In addition, in block D, four lighting fixtures D1, D2, D3, and D4 are provided in two vertical rows and two horizontal rows.

[0021] The lighting space can be divided into one or more blocks, for example, with 8 vertical x 8 horizontal = 64 squares as a unit. In the example of FIG. 2, the lighting space is divided into four blocks A, B, C, and D, but the present embodiment is not limited to this, and the number of blocks and the division method are not limited to this. For example, FIG. 3 is an explanatory diagram of a modified example of the blocks of the lighting area, and various modes can be adopted depending on the layout in the lighting space, including the division methods shown in FIG. 3A and FIG. 3B. For example, in FIG. 3A, the lighting area is divided into three blocks, and in FIG. 3B, the lighting area is divided into six blocks. In addition, various modes can be adopted for the number and arrangement of lighting fixtures in each block depending on the layout in the lighting space. In addition, although a case in which the detection ranges do not overlap is described in Fig. 3, this embodiment is not limited to this, and the detection ranges may be set so as to overlap, for example, as shown in Fig. 6. The illumination space is based on a unit of 8 vertical x 8 horizontal = 64 squares, but this embodiment is not limited to this, and the squares are not limited to this.

[0022] FIG. 4 is an explanatory diagram of the image sensor A16. The image sensor A16 is arranged at the center upper part of the lighting space, and detects an image of a person present in each block seen from above, which is an image consisting of an area occupied by the upper half of the person's body, and detects the person by image recognition, and can track the person's movement to detect the manner of movement. In such image recognition, the manner of the person's sitting or moving is detected not only from the shape of the person but also from the movement. More specifically, the position of the person is detected as the position of the person detected as a person, for example, the feet of the center of gravity of the image seen from above the person, that is, the point closest to the image sensor A16.

[0023] The image sensor A16 is set so as to detect the presence or absence of people and their movement in the entire lighting space. The image sensor A16 is installed at a height of, for example, 2 m from the floor of the lighting space. The camera unit of the image sensor A16 is provided with a wide-angle lens, so that it is possible to capture a wide range. Although not particularly limited, for example, an angle of view of 65° in the vertical direction, i.e., about 130° horizontally, is secured. In order to enable capture of an even wider range, a required image range may be extracted using a wide-angle lens that can capture a range of, for example, 185° in the vertical direction.

[0024] The resolution of the camera unit 30 of the image sensor A16 is, for example, SXGA (1280 x 1024 pixels). In this case, the effective range of the image is 1024 x 1024 pixels. As shown in Fig. 4, the area captured by the image sensor A16 is, for example, 9m x 9m. Parts of the captured area that are not used to determine the presence or absence of a person are masked.

[0025] Fig. 5 is an explanatory diagram of the detection of a person between blocks. When a person exists across two or more areas, the person is detected as existing in the area in which the point of the image closest to the image sensor from the center of gravity of the image in which the person exists in each area and is recognized as the person exists. In the example of Fig. 5, a person 27 exists between block A and block B, but since the point of the image closest to the image sensor from the center of gravity of the image in which the person 27 exists and is recognized as the person 27, for example, the image of the person's upper body, exists in block A, it is determined that the person 27 exists in block A.

[0026] In the basic dimming control of each block, the lighting fixtures in the "present" block are turned on, the lighting fixtures in the "absent" block are turned off, and the lighting fixtures in the "moving" block are dimmed to low illuminance. The list of illuminances set in each block at this time is shown in Table 1.

[0027] [Table 1]

[0028] In the example of Table 1, different illuminances are set for daytime and nighttime, but this embodiment is not limited to this, and for example, it is possible to set illuminances for three or more time periods instead of just two, daytime and nighttime, or it is also possible to set the same illuminance for daytime and nighttime without dividing the time periods. Note that the time set by the lighting controller 10 is used to synchronize all the terminals and image sensors, so that the terminals 12-15 and image sensors A16-B17 are set to the correct time.

[0029] FIG. 6 is an explanatory diagram of the first embodiment, which is an example in which a passage is included in both area 1 and area 2. The detection areas are set with overlapping passages. If there is a passage in the boundary area between block B and block D, depending on whether a person moving through the passage walks closer to block B or closer to block D, there is a risk that a pattern in which block B is lit and block D is turned off, and a pattern in which block B is turned off and block D is lit will be repeated. Therefore, in this embodiment, a passage area is provided in the boundary area between block B and block D, block B and the passage area are combined to form area 1, and block D and the passage area are combined to form area 2, and lighting control and dimming control are performed according to "presence", "movement", and "absence" in area 1 and area 2. As a result, even if there is a passage at the boundary between blocks, appropriate lighting control and dimming control can be performed.

[0030] In FIG. 6, the passage area is designated as area γ, the area 1 minus area γ is designated as area α, and the area 2 minus area γ is designated as area β. It is desirable that the passage width of area γ of the passage area is large enough for people to pass through, for example, 80 cm to 100 cm or more. If the passage width is too narrow, there is a risk of a problem that lights in adjacent areas are repeatedly turned on and off when people move through the passage. In addition, since it is not desirable to make the passage width too large from the viewpoint of space problems, it is desirable that the upper limit in an office is about 300 to 500 cm, for example. The relationship between the areas detected by the image sensor A16 and the lighting fixtures controlled by the detection information is shown in Table 2.

[0031] [Table 2]

[0032] The passage areas can be set when designing the layout of each block. Also, the passage areas can be set automatically from the history of people moving using the image sensor A16, for example, by learning from the history of people's movements in the past, preferably by deep learning.

[0033] (1) When both Area α and Area β are “absent” When a person is moving through area γ, the lighting fixtures in areas α, β, and γ are all dimmed at, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on at, for example, 700 lux. When area γ is "absent," the lighting fixtures in areas α, β, and γ are all turned off.

[0034] (2) When area α is “absent” and area β is “moving” When a person is moving through area γ, the lighting fixtures in areas α, β, and γ are all dimmed to, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on to, for example, 700 lux. When area γ is "absent," the lighting fixtures in area α are turned off, and the lighting fixtures in areas β and γ are dimmed to, for example, 300 lux. (3) When area α is “absent” and area β is “present” When a person is moving through area γ, the lighting fixtures in area α are dimmed to, for example, 300 lux, and the lighting fixtures in areas β and γ are turned on at, for example, 700 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on at, for example, 700 lux. When area γ is "absent," the lighting fixtures in area α are turned off, and the lighting fixtures in areas β and γ are turned on at, for example, 700 lux.

[0035] (4) When area α is “moving” and area β is “absent” When a person is moving through area γ, the lighting fixtures in areas α, β, and γ are all dimmed to, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on to, for example, 700 lux. When area γ is "absent," the lighting fixtures in areas α and γ are dimmed to, for example, 300 lux, and the lighting fixtures in area β are turned off.

[0036] (5) When Area α is “Movement” and Area β is “Movement” When a person is moving through area γ, the lighting fixtures in areas α, β, and γ are all dimmed to, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on to, for example, 700 lux. When area γ is "absent," the lighting fixtures in areas α, β, and γ are all dimmed to, for example, 300 lux.

[0037] (6) When area α is “moving” and area β is “present” When a person is moving through area γ, the lighting fixtures in area α are dimmed to, for example, 300 lux, and the lighting fixtures in areas β and γ are turned on to, for example, 700 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on to, for example, 700 lux. When area γ is "absent," the lighting fixtures in area α are dimmed to, for example, 300 lux, and the lighting fixtures in areas β and γ are turned on to, for example, 700 lux.

[0038] (7) When area α is “present” and area β is “absent” When a person is moving through area γ, the lighting fixtures in areas α and γ are turned on at 700 lux, and the lighting fixtures in area β are dimmed to, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on at, for example, 700 lux. When area γ is "absent," the lighting fixtures in areas α and γ are turned on at, for example, 700 lux, and the lighting fixtures in area β are turned off.

[0039] (8) When Area α is “Present” and Area β is “Moving” When a person is moving through area γ, the lighting fixtures in areas α and γ are turned on at 700 lux, and area β is dimmed at, for example, 300 lux. When a person stops in area γ for a set period of time or longer, the lighting fixtures in areas α, β, and γ are all turned on at, for example, 700 lux. When area γ is "absent," the lighting fixtures in areas α and γ are turned on at, for example, 700 lux, and the lighting fixtures in area β are dimmed at, for example, 300 lux.

[0040] (9) When Area α is “present” and Area β is “present” Regardless of whether area γ is "present," "moving," or "not present," areas α, β, and γ are all lit up at, for example, 700 lux.

[0041] [Embodiment 2] A lighting control system according to a second embodiment of the present invention will be described with reference to Fig. 7. Fig. 7 is an explanatory diagram of the second embodiment, in which the passage area between blocks B and D is designated as area 3, the area of ​​block B other than area 3 is designated as area 1, and the area of ​​block D other than area 3 is designated as area 2. Lighting control in area 3 when "present", "moving", or "not present" is linked to area 1. This makes it possible to perform appropriate lighting control and dimming control even when there is a passage in the boundary area between blocks. Table 3 shows the relationship between the areas detected by the image sensor A16 and the lighting fixtures controlled by the detection information.

[0042] [Table 3]

[0043] (1) Fig. 7 shows a case where area 1 and area 2 are "absent" and area 3 is "moving". In this case, the lighting fixtures in area 1 and area 3 are turned on at, for example, 300 lux, and the lighting fixtures in area 2 are turned off.

[0044] When area 1 and area 2 are "Absent" and area 3 is "Present", the lighting fixtures in area 1 and area 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are turned off. Also, when area 3 is "Absent", the lighting fixtures in area 1, area 2, and area 3 are all turned off.

[0045] (2) When Area 1 is "Absent" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are turned off, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux.

[0046] (3) When Area 1 is "Away" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed at, for example, 300 lux, and the lighting fixtures in area 2 are turned on at, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1, area 2, and area 3 are all turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are turned off, and the lighting fixtures in area 2 are turned on at, for example, 700 lux.

[0047] (4) When Area 1 is "moving" and Area 2 is "absent" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned off. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are turned off. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned off.

[0048] (5) When Area 1 is "Movement" and Area 2 is "Movement" When area 3 is "moving", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux.

[0049] (6) When Area 1 is "Moving" and Area 2 is "Present" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on at, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1, area 2, and area 3 are all turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on at, for example, 700 lux. (7) When Area 1 is "present" and Area 2 is "absent" Regardless of whether area 3 is "present," "moving," or "absent," the lighting fixtures in areas 1 and 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are turned off.

[0050] (8) When Area 1 is "Present" and Area 2 is "Moving" Regardless of whether area 3 is "present," "moving," or "absent," the lighting fixtures in areas 1 and 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed to 300 lux.

[0051] (9) If Area 1 is "In" and Area 2 is "In" Regardless of whether area 3 is "present," "moving," or "absent," the lighting fixtures in areas 1, 2, and 3 are all turned on at, for example, 700 lux.

[0052] [Embodiment 3] A lighting control system according to embodiment 3 of the present invention will be described with reference to Fig. 7. This embodiment differs from embodiment 2 in that the "presence", "movement" or "absence" state of area 3 is related to area 1, while the "presence", "movement" or "absence" state of area 1 is not linked to area 3. This embodiment also makes it possible to perform appropriate lighting control and dimming control, even if there is a passage in the boundary area between blocks.

[0053] (1) Fig. 7 shows a case where area 1 and area 2 are "absent" and area 3 is "moving". In this case, the lighting fixtures in area 1 and area 3 are turned on at, for example, 300 lux, and the lighting fixtures in area 2 are turned off.

[0054] When area 1 and area 2 are "Absent" and area 3 is "Present", the lighting fixtures in area 1 and area 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are turned off. Also, when area 3 is "Absent", the lighting fixtures in area 1, area 2, and area 3 are all turned off.

[0055] (2) When Area 1 is "Absent" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are turned off, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux.

[0056] (3) When Area 1 is “Away” and Area 2 is “In” When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed at, for example, 300 lux, and the lighting fixtures in area 2 are turned on at, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1, area 2, and area 3 are all turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are turned off, and the lighting fixtures in area 2 are turned on at, for example, 700 lux.

[0057] (4) When Area 1 is "moving" and Area 2 is "absent" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned off. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are turned off. When area 3 is "not present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 and area 3 are turned off.

[0058] (5) If Area 1 is "Movement" and Area 2 is "Movement" When area 3 is "moving", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on to, for example, 700 lux, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned off.

[0059] (6) When Area 1 is "Moving" and Area 2 is "Present" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on at, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1, area 2, and area 3 are all turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, the lighting fixtures in area 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are turned off. (7) When Area 1 is “present” and Area 2 is “absent” When area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, the lighting fixtures in area 2 are turned off, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are turned off. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are turned off.

[0060] (8) When Area 1 is "Present" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed at, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, the lighting fixtures in area 2 are dimmed at, for example, 300 lux, and the lighting fixtures in area 3 are turned off.

[0061] (9) If Area 1 is "In" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in area 1 and area 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1, area 2, and area 3 are all turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are turned off.

[0062] [Embodiment 4] A lighting control system according to a fourth embodiment of the present invention will be described with reference to Figs. 8 to 10. In this embodiment, the boundary region between blocks B and D has area 3 as a passage region, and the region of block B other than area 3 is area 1, and the region of block D other than area 3 is area 3. Fig. 8 is an explanatory diagram of the case where area 1 and area 2 are "absent" and area 3, which is a passage, is "moving". Fig. 9 is an explanatory diagram of the case where area 1 and area 2 are "absent" and the passage is "present" in this embodiment. Fig. 10 is an explanatory diagram of the case where area 1 is "present", area 2 is "absent" and the passage is "moving". By associating the "present", "moving" or "absent" status of area 3, which is a passage region, with area 1 and area 2, which are adjacent regions, appropriate lighting control and dimming control can be performed even when there is a passage in the boundary region between blocks. Table 4 shows the relationship between the areas detected by the image sensor A16 and the lighting fixtures controlled by the detection information.

[0063] [Table 4]

[0064] (1) When Area 1 and Area 2 are "Absent" (1-1) As shown in FIG. 8, when areas 1 and 2 are "absent" and area 3 is "moved", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. (1-2) As shown in FIG. 9, when areas 1 and 2 are “absent” and area 3 is “present”, the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. (1-3) When Area 1, Area 2, and Area 3 are all “Absent,” the lighting fixtures in Area 1, Area 2, and Area 3 are all turned off.

[0065] (2) When Area 1 is "Absent" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1 and 3 are turned off, and the lighting fixtures in area 2 are dimmed to, for example, 300 lux.

[0066] (3) When Area 1 is "Away" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on to, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in areas 2 and 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are turned off, and the lighting fixtures in area 2 are turned on to, for example, 700 lux.

[0067] (4) When Area 1 is "moving" and Area 2 is "absent" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in areas 2 and 3 are turned off.

[0068] (5) When Area 1 is "Movement" and Area 2 is "Movement" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned off.

[0069] (6) When Area 1 is "Moving" and Area 2 is "Present" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on to, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 and area 3 are turned on to, for example, 700 lux. When area 3 is "absent", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, the lighting fixtures in area 2 are turned on to, for example, 700 lux, and the lighting fixtures in area 3 are turned off.

[0070] (7) When Area 1 is "present" and Area 2 is "absent" 10, when area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed at, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 and area 3 are turned off.

[0071] (8) When Area 1 is "Present" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed at, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, the lighting fixtures in area 2 are dimmed at, for example, 300 lux, and the lighting fixtures in area 3 are turned off.

[0072] (9) If Area 1 is "In" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in areas 1 and 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1, 2, and 3 are turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1 and 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are turned off.

[0073] [Embodiment 5] A lighting control system according to embodiment 5 of the present invention will be described. This embodiment is an example in which area 3 is provided as a passage area in the boundary area between blocks B and D, and the area other than area 3 in block B is designated area 1, and the area other than area 3 in block D is designated area 3. This embodiment differs from embodiment 4 in that the "presence", "movement", or "absence" statuses of area 1 and area 2 are also associated with area 3, which is a passage area. This allows appropriate lighting control and dimming control to be performed even when there is a passage in the boundary area between blocks.

[0074] (1) When Area 1 and Area 2 are "Absent" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1, 2 and 3 are all turned off.

[0075] (2) When Area 1 is "Absent" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned off, and the lighting fixtures in areas 2 and 3 are dimmed to, for example, 300 lux.

[0076] (3) When Area 1 is "Away" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on to, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 and area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned off, the lighting fixtures in area 2 are turned on to, for example, 700 lux, and the lighting fixtures in area 3 are dimmed to, for example, 300 lux.

[0077] (4) When Area 1 is "moving" and Area 2 is "absent" When area 3 is "moving", the lighting fixtures in area 1, area 2, and area 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned off.

[0078] (5) When Area 1 is "Movement" and Area 2 is "Movement" When area 3 is "moving", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 2 are dimmed to, for example, 300 lux, and the lighting fixtures in area 3 are turned on to, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1, 2 and 3 are all dimmed to, for example, 300 lux.

[0079] (6) When Area 1 is "Moving" and Area 2 is "Present" When area 3 is "moving", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on to, for example, 700 lux. When area 3 is "present", the lighting fixtures in area 1 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 and area 3 are turned on to, for example, 700 lux. When area 3 is "absent", the lighting fixtures in area 1 and area 3 are dimmed to, for example, 300 lux, and the lighting fixtures in area 2 are turned on to, for example, 700 lux.

[0080] (7) When Area 1 is "present" and Area 2 is "absent" When area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in area 1 and area 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed at, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, the lighting fixtures in area 2 are turned off, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux.

[0081] (8) When Area 1 is "Present" and Area 2 is "Moving" When area 3 is "moving", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1 and 3 are turned on at, for example, 700 lux, and the lighting fixtures in area 2 are dimmed at, for example, 300 lux. When area 3 is "not present", the lighting fixtures in area 1 are turned on at, for example, 700 lux, and the lighting fixtures in areas 2 and 3 are dimmed at, for example, 300 lux.

[0082] (9) If Area 1 is "In" and Area 2 is "In" When area 3 is "moving", the lighting fixtures in areas 1 and 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux. When area 3 is "present", the lighting fixtures in areas 1, 2, and 3 are turned on at, for example, 700 lux. When area 3 is "not present", the lighting fixtures in areas 1 and 2 are turned on at, for example, 700 lux, and the lighting fixtures in area 3 are dimmed at, for example, 300 lux.

[0083] [Embodiment 6] A lighting control system according to a sixth embodiment will be described with reference to Fig. 11. Fig. 11 is an explanatory diagram of the sixth embodiment, showing a lighting control system which also lights up lighting fixtures in a neighboring area 30 of the lit area. If a person sitting and working in the lit area sees the neighboring area 30 as being dark, he or she may feel uncomfortable. Therefore, by also lighting up the lighting fixtures in the neighboring area 30 of the lit area, lighting control can be achieved that does not feel strange to the person working in the lit area. The relationship between the area detected by the image sensor A16 and the lighting fixtures controlled by the detection information is shown in Table 5.

[0084] [Table 5]

[0085] In FIG. 11, area 1 is "present", the lighting fixtures in area 1 are lit at, for example, 700 lux, and the other areas are unoccupied. In this case, the lighting fixtures in the neighborhood area 30 of area 1 are lit at, for example, 700 lux. The illuminance of lighting in an office building is determined taking into consideration not only the lighting fixtures directly above but also the light from the neighboring lighting fixtures. Therefore, if the neighborhood area 30 of the lit area is turned off, there is a risk of insufficient illuminance occurring near the boundary area of ​​the lit area, which may cause discomfort to people in the lit area. For this reason, in this embodiment, such a problem can be solved by lighting the neighborhood area 30 of area 1, which is a lit area, at, for example, 700 lux as shown in FIG. 11.

[0086] The above describes a lighting control system according to an embodiment of the present invention. However, the above-mentioned embodiment is an example of a lighting control system for embodying the technical concept of the present invention, and does not limit the present invention to these embodiments. The present invention can be equally applied to other embodiments, such as those in which the respective embodiments are modified as appropriate or combinations of these embodiments. [Explanation of symbols]

[0087] 10 lighting controller, 11 PC, 12 terminal A, 13 terminal B, 14 terminal C, 15 terminal D, 16 image sensor A, 17 image sensor B, 18 LAN, 19 communication line, 20 lighting fixture, 21 terminal E, 22 signal line, 30 neighborhood area.

Claims

1. A plurality of lighting fixtures for illuminating the lighting space; a human detection sensor for detecting a position of a person present in the lighting space; a control device that controls the lighting device based on the position of a person detected by the human detection sensor; A lighting control system comprising: The control device sets different combinations of lighting devices to correspond to areas where a plurality of detection areas are set with partial overlap in the lighting space, and areas where the plurality of detection areas do not overlap, and controls the lighting devices that correspond to areas of the overlapping and non-overlapping areas that include the position of a person detected by the human detection sensor.

2. The lighting control system of claim 1, wherein the control device controls the lighting fixtures corresponding to areas of the overlapping area and the non-overlapping area that do not include the position of a person detected by the human detection sensor.

3. A lighting control system as described in claim 1 or claim 2, wherein the control device controls in conjunction with the lighting fixtures corresponding to an area that includes the position of a person detected by the human detection sensor and the lighting fixtures corresponding to at least one area that does not include the position of a person detected by the human detection sensor.

4. A lighting control system as described in any one of claims 1 to 3, wherein the control device controls the lighting fixture corresponding to the area where the person's position moves when the person's position moves in either the overlapping area or the non-overlapping area.

5. The lighting control system according to any one of claims 1 to 4, wherein the size of the overlapping area is set to be larger than the size of one person present in the lighting space.

6. The human detection sensor, for each of the overlapping area and the non-overlapping area, (1) If a person exists, he / she is present; (2) In the case of a person moving, that person is moving; (3) Absence, if no person is present; The lighting control system according to any one of claims 1 to 5, further comprising:

7. The control device, for each of the overlapping area and the non-overlapping area, (A) when a detection result of the human detection sensor indicates movement, the lighting devices corresponding to the overlapping area and the non-overlapping area in different combinations are turned on at a predetermined illuminance; (B) when the detection result of the human detection sensor is a presence, the lighting device is turned on at a higher illuminance than that of (A); (C) When the detection result of the human detection sensor indicates that no one is present, the lighting device is turned on at a lower illuminance than that of (A) or turned off.

8. A lighting control system as described in Claim 7, wherein when the detection result of the human detection sensor is (A) or (B), the control device controls the lighting fixtures arranged in the non-overlapping area that are arranged in the vicinity of the overlapping area in accordance with the detection result of the human detection sensor in the overlapping area.

9. A lighting control system as described in any one of claims 1 to 8, wherein, in a planar view including the multiple detection areas of the lighting space and the human detection sensor, when a person is present across two or more of the detection areas, the human detection sensor detects the person as being present in the detection area in which the position of the image recognized as the person across two or more of the detection areas is recognized to be closest to the human detection sensor between the center of gravity of the image and the human detection sensor.

10. A lighting control system as described in Claim 9, wherein the area of ​​the image for the human detection sensor to recognize the presence of the person is the area occupied by the upper body of the person.

11. The lighting control system according to any one of claims 1 to 10, wherein the human detection sensor is an image sensor.

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