JP3747582B2 - Lighting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a lighting device that detects the presence or absence of a person within a detection area of a human sensor and determines lighting states of a plurality of lighting fixtures based on the detection result.
[0002]
[Prior art]
  2. Description of the Related Art Conventionally, there has been provided a lighting fixture including a human body detection sensor (hereinafter abbreviated as a human sensor). That is, when the presence sensor detects that a person is present in the detection area set in the vicinity of the lighting fixture, the lighting load is turned on. In this configuration, when the person is not present, the illumination load is turned off, so that unnecessary illumination can be prevented and energy can be saved.
[0003]
  By the way, this type of luminaire does not require a separate device, and the luminaire operates independently, and can be used for lighting with a single luminaire such as a relatively small room or entrance. Is enough. However, in places where a large number of lighting fixtures are arranged, such as office floors, if each lighting fixture individually detects and lights a person, the lighting fixtures turn on only in the vicinity of the person's location. As a result, the lighting fixtures in the lit state and the extinguished state are scattered sparsely and comfort is impaired. Of course, when there is a small number of people remaining in the office, such as when working overtime, there is no particular problem, but there is an advantage that it saves energy. Therefore, comfort must be prioritized over energy saving.
[0004]
  In view of this, it has been considered that human sensors are provided separately from the lighting fixtures, the lighting fixtures are divided into groups, and human sensors are associated with each group. If this technology is used to associate a group of lighting fixtures with each department in the office, the lighting fixtures can be turned on and off in units. Therefore, it is possible to work comfortably when there are a relatively large number of people, such as in the daytime, and the lighting equipment is turned off in unnecessary departments, so that a certain amount of energy saving effect can be obtained. However, when the number of people remaining in the office is small, such as during overtime, the lighting fixtures are turned on in groups, so that it cannot be said that the energy saving effect is sufficient.
[0005]
  In the above two examples, there are cases where comfort and energy saving cannot be achieved due to the large number of people. In other words, since the number of lighting fixtures and brightness required differ depending on the number of people, comfort and energy saving can be achieved regardless of the number of people by adjusting the number of lighting fixtures and brightness according to the number of people. It is thought that both can be achieved. From such a viewpoint, there has been proposed one that adjusts the brightness of a lighting fixture associated with a human sensor according to whether or not the human sensor detects a person.
[0006]
  For example, it is considered that a lighting fixture with a person directly under it is turned on brightest, and a lighting fixture corresponding to a human sensor not detecting a person is turned on with a low light output. In this configuration, when the number of people is small, it is more energy-saving than when multiple lighting fixtures are turned on together for each group, but even when there are many people, the lighting fixtures are dimly lit in places where there are no people underneath. , With a light fixture placed in a place where there are no peopleMuniWhen taking an application, there is a sense of incongruity and comfort is impaired. In addition, although the light output is lowered when there is no person, the lighting apparatus is turned on, so that the energy saving effect as a whole cannot be satisfied.
[0007]
  In addition, as shown in FIG. 29, there is a lighting device that lights up the lighting fixtures 10 arranged around the place where the person M exists (the lighting lighting fixtures 10 that are turned on are outlined and the lighting fixtures 10 that are turned off are shaded. Is shown). However, when the number of people is small, only the surroundings of each person M become bright, and the space between the person M and the person M becomes dark. Therefore, when communication is taken into consideration, a sense of incongruity occurs and lacks comfort.
[0008]
  Furthermore, in a conventional lighting fixture with a human sensor, in order to avoid misrecognizing that there is no person during the period when the person is present in the detection area, the predetermined lighting is maintained after the person is no longer detected. Many times keep lighting fixtures on. When such a configuration is adopted, the lighting fixture continues to be lit for the above-described lighting holding time even if it simply passes through the detection area of the human sensor as in the case of moving between passages and rooms. Therefore, the lighting apparatus is turned on uselessly. To solve this problem, it is conceivable to shorten the lighting holding time, but if the lighting holding time is shortened, the person is detected by the human sensor when the person remains in the detection area of the human sensor. It may be misunderstood that no one exists. This is because a human sensor generally uses a differential sensor such as a pyroelectric element to detect a change in the amount of incident infrared rays.
[0009]
[Problems to be solved by the invention]
  As described above, in the conventional configuration, there is nothing that achieves energy saving and comfort regardless of the number of people, and it is expected to realize this. The present invention has been made in view of the above reasons, and an object of the present invention is to provide a lighting device that can achieve both energy saving and comfort regardless of the number of people.
[0010]
[Means for Solving the Problems]
  The invention of claim 1 comprises a plurality of human sensors for detecting the presence or absence of a person in the detection area, and a plurality of lighting fixtures, and the human sensors and lighting fixtures are divided into a plurality of groups, Based on the number of people detected by the presence sensor in the group, change the lighting state of at least a predetermined number of lighting fixtures in the group.RuIn the light equipmentIf the number of people detected in the group is greater than or equal to the specified number, the lighting fixtures of the adjacent group are turned on, and more lighting fixtures are turned on than when the number is less than the specified number.Is.
[0011]
  The invention of claim 2Multiple human sensors that detect the presence or absence of people in the detection area, and multiple The lighting sensor and the lighting fixture are divided into a plurality of groups, and at least a predetermined number of lights in the group based on the number of people detected by the presence sensor in each group In the lighting device that changes the lighting state of the fixture, if the number of people detected in the group is more than the specified number, the lighting fixtures in a large group that is set to include multiple groups in advance are turned on and less than the specified number More lighting fixtures than in the case of.
[0012]
  Claim3The invention of claim1 or 2In the invention ofEach luminaire is provided with a human sensor.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
  (Basic configuration)
  BookBasic configurationThen, as shown in FIG. 1, the some lighting fixture 10 is mutually connected via the signal wire | line Ls. Each lighting fixture 10 is connected to a power supply line Lp. Each lighting fixture 10 includes an illumination load 11 such as a fluorescent lamp and a human sensor 12 and is arranged on the ceiling. The illumination load 11 is controlled based on a control signal from the control unit 13 to which the human sensor 12 and the communication unit 14 are connected. The communication unit 14 is connected to the signal line Ls, exchanges information detected by the human sensor 12 with the other lighting fixtures 10 through the signal line Ls, and sends information output from the control unit 13 to the signal line Ls. The information is sent out or information from the signal line Ls is given to the control unit 13. Therefore, the illumination load 11 is controlled in conjunction with the other lighting fixture 10 based on the detection information by the human sensor 12 provided in the other lighting fixture 10. That is, the control part 13 provided in each lighting fixture 10 receives the information from each other lighting fixture 10, and about the case where the lighting load 11 (the lighting load 11 of the lighting fixture 10 turns on or off) of the lighting fixture 10, In the following, it is determined whether or not the lighting fixture 10 is turned on or off. Also bookBasic configurationWhen the lighting load 11 is turned on after the lighting load 11 is turned on, the lighting load 11 is turned off after the lighting state is continued for a certain lighting holding time since the condition that the lighting is unnecessary is satisfied. This is to prevent the lighting load 11 from being suddenly turned off due to erroneous detection of the human sensor 12 by continuing the lighting state during the lighting holding time even after no human is detected by the human sensor 12.
[0014]
  A plurality of lighting fixtures 10 are appropriately grouped. Here, as shown in FIG.₃~ G₃Are grouped into BookBasic configurationWhen there are few people, each group G₁~ G₃, When there is a person directly under the lighting fixture 10 (within the detection area of the human sensor 12 provided on the lighting fixture 10), the lighting fixture 10 is turned on.₁~ G₃It is characterized in that all the lighting loads 11 are turned on every time. Number of people is group G₁~ G₃It is assumed that it corresponds to the number of human sensors 12 detecting a person in the list.
[0015]
  For example, as shown in FIG.₁When the person M comes under the lighting fixture 10 indicated by A (hereinafter referred to as “lighting fixture A”), the lighting fixture A is turned on and the person M exists immediately under the lighting fixture A. Group G to do₁The other lighting fixture 10 is notified via the signal line Ls. Notification to the other luminaires 10 is performed periodically while the person M exists directly under the luminaire A. Where group G₁The other lighting fixtures 10 in the group G₁Since it is recognized that only one luminaire A has detected the person M, it is determined that the lamp does not light up. That is, in this state, only the luminaire A in which the person M is present is turned on (the lighted state is shown in white, and the lighted state is shown in diagonal lines).
[0016]
  Here, when the person M moves directly below the lighting fixture B as shown in FIG. 4, the lighting fixture B is turned on, and the lighting load 11 of the lighting load A is turned off after the lighting holding time has elapsed. At this time, lighting fixture B is in group G₁The other luminaires 10 are regularly notified of the presence of a person. Also in this case, after the lighting fixture A is turned off, only the lighting fixture B is turned on.
[0017]
  Next, in the state where the lighting fixture B is turned on, as shown in FIG. 5, when the person M is detected by another lighting fixture C, the lighting fixture C is turned on and the lighting fixture C is switched to the group G.₁The presence of a person is notified to the other lighting fixtures 10 within. Here, group G arranged at a distant place₁The presence of the person M is notified from the two lighting fixtures B and C. Each lighting fixture 10 has the same group G₁It is set to turn on the lighting load 11 when the presence of the person M is notified from the two lighting fixtures 10 in the group G.₁All of the luminaires 10 will be lit.
[0018]
  On the other hand, from the state of FIG.₁When leaving the group G again only from one lighting fixture 10₁Since the other lighting fixtures 10 are notified, only the lighting fixture 10 corresponding to the place where the person M exists after the lighting holding time elapses after one person M is no longer detected. . Group G₁If the person M disappears, all the lighting fixtures 10 are turned off after the lighting holding time has elapsed.
[0019]
  As described above, by providing the human sensor 12 in each lighting fixture 10, the group G depends on the number of lighting fixtures 10 detecting the person M.₁Since it is possible to know the approximate number of people and positions in the interior, it is determined whether or not each luminaire 10 is lit based on such information, and only the luminaires 10 at the necessary places are lit. Here, in order to grasp the number of people present more accurately, the number of lighting fixtures 10 may be increased and the detection area of the human sensor 12 may be narrowed, but the number of lighting fixtures 10 and the detection area of the human detection sensor 12 are necessary. It is set appropriately according to.
[0020]
  As mentioned above, the bookBasic configurationWith this configuration, it becomes possible to select the form of illumination according to the number of people. For example, it is possible to control illumination so that the more people there are, the more comfortable illumination space can be created.
[0021]
  In addition, about the transmission form of the information between the lighting fixtures 10, what kind of thing may be sufficient if the above-mentioned operation | movement is attained, For example, the unique address is set for every lighting fixture 10, Those in which the lighting fixtures 10 transmit data to each other using addresses, or those that provide a separate centralized management device and transmit data generated in each lighting fixture 10 to other lighting fixtures 10 via the centralized management device Can be used. Further, even if an address is not set for each lighting fixture 10, only the information for identifying the group is provided, and each lighting fixture 10 in the group cyclically sends detection information from the human sensor 12 at different timings. By setting the number of lighting fixtures 10 notified of the presence of a person within one cycle (for example, set to about 1 second), the number of persons existing in the area corresponding to the group can be determined. I can know. In the above example, the configuration is a distributed processing type that individually determines whether or not each lighting fixture 10 is lit. However, when the centralized management device 20 is used as shown in FIG. It is good also as a structure which judges whether each lighting fixture 10 is lighted.
[0022]
  (Embodiment1)
  Basic configurationIn this example, the detection information of the human sensor 12 is transmitted only between the luminaires 10 in the group. However, the present embodiment enables information to be transmitted across a plurality of groups. .
[0023]
  In the present embodiment, as shown in FIG.₁~ G₃The point to divideBasic configurationBut with multiple groups G₁~ G₃Large group G₀₁In the point that formedBasic configurationIs different. That is, each group G₁~ G₃The detection information of the human sensor 12 is not transmitted only by the lighting fixtures 10 in the group G.₁~ G₃The detection information of the human sensor 12 is also transmitted to the human eye. In this embodiment, one group G₁~ G₃When the number of people in the group increases, other group G₁~ G₃The lighting fixture 10 is also turned on.
[0024]
  The operation will be specifically described below with reference to the drawings. Group G as shown in FIG.₁Suppose that there are two people M. At this time,Basic configurationAs well as group G₁All the lighting fixtures 10 are turned on. However, with this number of people, large group G₀₁Other groups in₂, G₃The lighting fixture 10 is not lit, but the other group G₂, G₃The lighting fixture 10 in Group G₁It is notified how many people M are detected within the system.
[0025]
  At this time, as shown by the arrow in FIG.₁If another person M enters the group G,₁There are three people M inside. Therefore, large group G₀₁Other groups in₂, G₃But group G₁Recognizes that there are about three people M. Thus, one group G₁When the number of people reaches the specified number (here 3), the large group G₀₁Other group G in₂, G₃Even if there are no people in the large group G as shown in FIG.₀₁All the luminaires 10 are turned on.
[0026]
  Conversely, as shown in FIG.₁Exit the area corresponding to the group G₁If the number of people detected in the group decreases, the above specified number of people will not be met, and the large group G₀₁The other lighting fixtures 10 in the group are turned off, and the group G₁Only the inside lighting fixture 10 will be in the state to light.
[0027]
  Group G₁~ G₃Information transmission betweenBasic configurationWhat is necessary is just to carry out similarly to the information transmission between the lighting fixtures 10 in. If the control as described above is performed, each group G can save energy.₁~ G₃Even if the number of lighting fixtures 10 included in is reduced, one group G₁~ G₃If the number of people in the area corresponding to₁~ G₃Since the lighting fixtures 10 are also turned on, when the number of people increases, one group G₁~ G₃Compared with the case of illuminating only a narrow area, the feeling of closing is reduced, and a comfortable illumination can be obtained. That is, both energy saving and comfort can be achieved.
[0028]
  In the above example, one group G₁~ G₃Large group G when three human sensors 12 detect person M₀₁All the lighting fixtures 10 in FIG. 1 are turned on, but when the number of human sensors 12 detects the person M, the large group G₀₁Whether to turn on all the lighting loads 10 of each group G₁~ G₃Is determined by the number of lighting fixtures 10 included. That is, each group G₁~ G₃The larger the number of lighting fixtures 10 that make up the larger group G₀₁A large number of persons under the condition of lighting all the lighting loads 10 are set.
[0029]
  (Embodiment2)
  This embodiment is an embodiment1Similarly, if the number of people in the area corresponding to one group increases, the lighting load of the other group is also turned on, but instead of setting a large group, the lighting load of the adjacent group is turned on. It is. That is, as shown in FIG.₁~ G₅For example, group G₁If there are two people M in the group G as shown in FIG.₁All the lighting loads 10 are turned on. This operation is an embodiment1It is the same. Here, as shown by the arrow in FIG.₁When two more people M enter the area corresponding to, group G in this embodiment as shown in FIG.₁Group G adjacent to₂~ G₄The lighting load 10 included in the lamp is turned on. By such control, the group G only around the place where the person exists₁~ G₄Since the illumination load 10 is turned on, a comfortable illumination space that is energy efficient and free from obstruction can be formed. Also in this embodiment, group G₁When the number of people in the area corresponding to the number decreases, as shown by the arrow in FIG.₂~ G₄Turn off the luminaire 10 of the group G₁Of course, only the lighting load 10 is turned on.
[0030]
  Where each group G₁~ G₅Is any other group G₁~ G₅The relationship between the lighting fixtures 10 is set in advance in each lighting fixture 10, and the control unit 13 of each lighting fixture 10 makes the above-described determination based on the relationship. In this embodiment, the central management device is also used as a group G by using the central management device.₁~ G₅May be managed. Other configurations and operations areBasic configurationIt is the same.
[0031]
  (Reference example 1)
  AboveBasic configuration andIn each embodiment, the lighting fixture 10 is only turned on and off.Reference exampleThen, the lighting fixture 10 that can be dimmed is used. BookReference exampleThe plurality of lighting fixtures 10 is group G₁~ G₃Divided intoBasic configurationWhen the person M is detected by the human sensor 12 in the same manner as in FIG.₁~ G₃The lighting fixture 10 is turned on. However, information on which lighting fixture 10 is arranged adjacent to each lighting fixture 10 is set in advance, and the lighting fixture 10 adjacent to the lighting fixture 10 that detects the person M by the human sensor 12 is 100%. Lights up (rated light). Further, the group G including the lighting fixture 10 in which the human sensor 12 detects the person M₁~ G₃The other luminaires 10 except the luminaire 10 adjacent to the luminaire 10 are dimmed (for example, 50% lit). Here, the lighting fixtures 10 are arranged in rows and columns, and the adjacent lighting fixtures 10 mean a total of four lighting fixtures 10 each on both sides in the vertical and horizontal directions.
[0032]
  BookReference exampleWill be described in detail with reference to the drawings. Now, assuming that the person M is directly below the lighting fixture C in FIG. 17, the lighting fixture C is turned on 100%, and the four lighting fixtures A, B, D, and E arranged in the vicinity thereof are also 100. %Light. Group G₁The other lighting fixtures 10 are turned on by 50% (50% lighting is indicated by a right-downward oblique line, and extinguishing is indicated by a left-downward oblique line). Such control is performed by the group G that has received information from the lighting fixture C including the human sensor 12 that detects the person M.₁It is realized by determining whether or not the other luminaire 10 is in the vicinity of the luminaire C and configuring the control unit 13 so that it lights up 100% when it is near and 50% when it is not near. .
[0033]
  As shown in FIG. 18, when the person M moves from directly below the lighting fixture C to just below the lighting fixture F, the lighting fixtures B, E, G, and H arranged near the lighting fixture F are turned on 100%. Group G₁The other luminaires 10 will be lit 50%. Here, the lighting fixtures A, C, and D shift from 100% lighting to 50% lighting after the lighting holding time elapses after the lighting fixture F is notified that the person M has been detected.
[0034]
  Further, as shown in FIG. 19, in the state of FIG.₁When a new person M enters the area corresponding to, the luminaire 10 detecting the person M and the luminaire 10 in the vicinity thereof are turned on 100%. Of course, if the person M no longer exists in the area corresponding to the group G1, all the lighting fixtures 10 are turned off after the lighting holding time has elapsed.
[0035]
  By the operation as described above, the vicinity of the place where each person exists is illuminated brightly with 100% lighting, and when there are a plurality of persons, the lighting is performed with 50% lighting even if the persons are slightly separated. It is possible to obtain a brightness that does not interfere with communication. In addition, the area other than the vicinity of the person is in a 50% lighting state, which saves energy. That is, both comfort and energy saving can be achieved.
[0036]
  BookReference exampleIn this case, the vicinity of the person is turned on at 100% and the other parts are turned on at 50%. However, the light output of the lighting apparatus 10 immediately above the person is greater than or equal to the light output of the lighting apparatus 10 near the person> The light output of each lighting fixture 10 can be appropriately set as long as the relationship of the light output of other lighting fixtures 10 is satisfied and the above-described object can be achieved. In addition, other configurations and operations including information transmission mode between the lighting fixtures 10Basic configurationIt is the same.
[0037]
  (Reference example 2)
  Mentioned aboveBasic configuration, embodiments, and reference examplesThen, when a person is detected by the human sensor 12 of any one of the lighting fixtures 10 and then no longer detected, the lighting fixture 10 is configured to be turned off after the lighting holding time has elapsed. This is because a pyroelectric element is generally used as the human sensor 12, and since the pyroelectric element is a differential sensor that detects only a change point, even if there is a person in the detection area, the person is not moved. People cannot be detected and people are in the detection areaNoThis is because it may be erroneously determined. However, if it is clear that a person has moved to another place, it is a waste of energy to hold the lighting state of the luminaire 10 for the lighting holding time even though there is no person.
[0038]
  So bookReference exampleThen, as shown in FIG.₁, G₂Divided into any group G₁, G₂Adjacent group G after no more people are detected in₁, G₂When a person is detected in the group G₁, G₂Group G, who first moved₁, G₂The lighting fixture 10 is immediately turned off. This type of control is mainly handled by group G₁, G₂Is set in an adjacent room or in the same group G₁, G₂This is effective when there is some separation between them.
[0039]
  The operation will be described below. Now, as shown in FIG.₁Group G as shown in FIG.₂If you move to the area corresponding to₁The human sensor 12 of the lighting fixture 10 changes from detection to non-detection, and the group G₂The human sensor 12 of the lighting fixture 10 changes from non-detection to detection. This is both groups G₁, G₂This is because they are arranged adjacent to each other. In this case, group G₂Of course, the lighting fixture 10 is lit. Where the bookReference exampleGroup G₁, G₂The detection information of the human sensor 12 is transmitted beyond the group G.₂Information that the person M was detected in the group G₁Is also transmitted. So Group G₁Immediately after the person M is no longer detected in the lighting fixture 10 of the group G,₂When it receives information that person M is detected in₁Group G from the area corresponding to₂Group G is determined to have moved to the area corresponding to₁The lighting fixture 10 is immediately turned off. By such control, it is possible to prevent wasteful consumption of energy due to continuing the lighting state for the lighting holding time.
[0040]
  The operation will be specifically described with reference to the drawings. Now, as shown in FIG.₁Group G from the detection area of the human sensor 12 of the lighting fixture A₂It is assumed that the person M has moved to the detection area of the human sensor 12 of the lighting fixture B. At this time, as shown in FIG. 22, after the person M is no longer detected by the human sensor 12 of the lighting apparatus A (FIG. 22A), the person M is detected by the human sensor 12 of the lighting apparatus B. (FIG. 22B). Mentioned aboveBasic configuration, embodiments, and reference examplesThen, the lighting holding time T after the person M is no longer detected by the human sensor 12 of the lighting fixture A.₁Continues the lighting state of the lighting fixture A (two-dot chain line in FIG. 22 (c))Reference exampleThen, when the person M is detected by the human sensor 12 of the luminaire B, the luminaire A is immediately turned off. In addition, when the person M is detected by the human sensor 12 of the lighting fixture B, the lighting fixture B is turned onBasic configuration, embodiments, and reference examples(FIG. 22 (d)).
[0041]
  Group G₂Group G is detected even if person M is detected₁Group G if person M remains in the area corresponding to₁The lighting fixture 10 is not turned off immediately, but the group G₁The above-described control is performed when the person M finally disappears from the area corresponding to.
[0042]
  In the above example, group G₁, G₂Is assumed to be arranged in a partitioned space, and the detection area of the human sensor 12 does not overlap.₁, G₂Is not arranged in a delimited space and adjacent group G₁, G₂Even if a part of the detection area of the human sensor 12 overlaps, the person M has a plurality of groups G₁, G₂Period detected by the human sensor 12 and the other group G₁, G₂One group G based on the transition with the period detected only by the human sensor 12₁, G₂It is possible to control the lighting fixture 10 to be turned off immediately.
[0043]
  In the above operation, the group G₁Group G after person M is not detected in₂Group G when person M is detected₁Although the lighting fixture 10 is immediately turned off, the lighting may be continued for a predetermined time shorter than the lighting holding time. Or group G that no longer detects person M₁The lighting fixture 10 may not be extinguished but may be in a dimming lighting state. By appropriately combining these operation states, it is possible to maintain a balance between comfort and energy saving. Other configurations and operations areBasic configurationIt is the same.
[0044]
  (Reference example 3)
  BookReference exampleAs shown in FIG. 23, the lighting fixture 10 is provided with two human sensors 12a and 12b. Detection areas Ea and Eb of both human sensors 12a and 12b are arranged side by side as shown in FIG. Therefore, if the person M moves so as to pass through the detection areas Ea and Eb in order, the person M is sequentially detected by the human sensors 12a and 12b.
[0045]
  BookReference exampleThen, immediately after the person M is no longer detected by one of the human sensors 12a and 12b (or after the human M is simultaneously detected by the two human sensors 12a and 12b for a predetermined short time), the other human sensor 12b , 12a, and when the person M is not detected within the specified time by the human sensors 12b, 12a (FIGS. 25A and 25B), the person M is another lighting device. 10 is determined to have moved to a location corresponding to 10, and the lighting fixture 10 is immediately turned off as shown in FIG. That is, bookReference exampleThat people are sure to have movedReference example 2Lighting hold time T₁The lighting fixture 10 is turned off without holding the light, which leads to energy saving. Note that the two-dot chain line in FIG.₁The operation when it has is shown. Further, the specified time for determining whether or not the person M has passed is about 2 seconds when the average movement speed of the person is 1.5 m / s and the area of the detection areas Ea and Eb is 3 m in diameter. With this configuration, when the person M simply passes, the lighting apparatus 10 is immediately turned off to save energy, and when the person M remains, the lighting apparatus 10 can be turned on without erroneous detection to maintain comfort.
[0046]
  The setting shape of the detection areas Ea and Eb in the case of having two human sensors 12a and 12b is not limited to the above-described one, and as shown in FIG. 26, the other detection area surrounds one detection area Ea. Eb may be set. In this case, as shown in FIG. 27, after one person sensor 12b detects the person M, the other person sensor 12a detects the person M for a short time, and then the one person sensor is detected. If the person M is not detected after the person is detected for a short time by the sensor 12b (FIGS. 27A and 27B), the lighting fixture 10 may be turned off immediately as shown in FIG. Here, the lighting fixture 10 is turned on when the person M is detected by the human sensor 12a in which the detection area Ea is set inward as shown in FIG. In FIG. 27C, a two-dot chain line indicates the lighting holding time T.₁This is the case.
[0047]
  BookReference exampleIn the example shown in FIG. 28, the lighting fixture 10 includes two human sensors 12a and 12b. However, as shown in FIG. 28, three human sensors are provided in the lighting fixture 10 to detect areas Ea, Eb, and Ec, respectively. May be juxtaposed. That is, the configuration shown in FIG. 24 is combined with the configuration shown in FIG. Other configurations and operations areBasic configurationIt is the same.
[0048]
【The invention's effect】
  The invention of claim 1 comprises a plurality of human sensors for detecting the presence or absence of a person in the detection area, and a plurality of lighting fixtures, and the human sensors and lighting fixtures are divided into a plurality of groups, Based on the number of people detected by the presence sensor in the group, change the lighting state of at least a predetermined number of lighting fixtures in the group.RuIn the light equipmentIf the number of people detected in the group is greater than or equal to the specified number, the lighting fixtures of the adjacent group are turned on, and more lighting fixtures are turned on than when the number is less than the specified number.Because it changes the lighting state of the luminaire according to the number of people in the group, it is possible to control to achieve both energy saving and comfort according to the number of people.In addition, while trying to save energy by making the number of lighting fixtures in one group relatively small, if the number of people increases and communication is required, by turning on many lighting fixtures across the group, There is an advantage that comfortable lighting can be performed without hindering communication.
[0049]
  Invention of Claim 2Is equipped with a plurality of human sensors for detecting the presence or absence of people in the detection area and a plurality of lighting fixtures, and the human sensors and lighting fixtures are divided into a plurality of groups, In a lighting device that changes the lighting state of at least a predetermined number of lighting fixtures in the group based on the number of people detected by the sensor, if the number of people detected in the group is greater than or equal to the prescribed number, The lighting fixtures in a large group that is set to include the above groups are turned on, and more lighting fixtures are lit than when the number is less than the specified number. In addition to the advantage that it can be controlled to achieve both energy saving and comfort according to the number of people, it is possible to change the illuminator in one group. The number of lighting fixtures is relatively small and energy is saved. However, if the number of people increases and communication is required, lighting can be performed comfortably without turning on many lighting fixtures across the group. There is an advantage that you can.
[0050]
  Claim3As in the invention of claim1 or 2In the invention ofEach lighting fixture has a human sensorIn things,There is an advantage that it is possible to associate the detection area of the human sensor with the illumination range of the luminaire, and it becomes easier to control the lighting state of the luminaire according to the number of people.
[Brief description of the drawings]
FIG. 1 of the present inventionBasic configurationFIG.
FIG. 2 is an operation explanatory diagram of the above.
FIG. 3 is an operation explanatory diagram of the above.
FIG. 4 is an operation explanatory view of the above.
FIG. 5 is an operation explanatory diagram of the above.
FIG. 6 is another system configuration diagram of the above.
FIG. 7 is an embodiment of the present invention.1FIG.
FIG. 8 is an operation explanatory view of the above.
FIG. 9 is an operation explanatory diagram of the above.
FIG. 10 is an operation explanatory diagram of the above.
FIG. 11 is an operation explanatory diagram of the above.
FIG. 12 is an operation explanatory diagram of Embodiment 2 of the present invention.
FIG. 13 is an operation explanatory diagram of the above.
FIG. 14 is an operation explanatory diagram of the above.
FIG. 15 is an operation explanatory diagram of the above.
FIG. 16 is an operation explanatory view of the above.
FIG. 17 shows the present invention.Reference example 1FIG.
FIG. 18 is an operation explanatory diagram of the above.
FIG. 19 is an operation explanatory diagram of the above.
FIG. 20 shows the present invention.Reference example 2FIG.
FIG. 21 is an operation explanatory diagram of the above.
FIG. 22 is an operation explanatory diagram of the above.
FIG. 23 shows the present invention.Reference example 3It is a block diagram of the lighting fixture used for.
FIG. 24 is an operation explanatory diagram of the above.
FIG. 25 is an operation explanatory diagram of the above.
FIG. 26 is an operation explanatory diagram of the above.
FIG. 27 is an operation explanatory view of the above.
FIG. 28 is an operation explanatory view of the above.
FIG. 29 is an operation explanatory diagram showing a conventional example.
[Explanation of symbols]
10 Lighting equipment
11 Lighting load
12 Human sensor
13 Control unit
14 Communication Department
Lp power line
Ls signal line

Claims (3)

Provided with a plurality of human sensors for detecting the presence or absence of a person in the detection area and a plurality of lighting fixtures, the human sensors and the lighting fixtures are divided into a plurality of groups, and the human sensors within each group based on the detected number of people, at least in several lighting device Ru changing the lighting state of the lighting apparatus of a predetermined in that group, the number of people that were detected in the group is specified number or more, the adjacent A lighting device characterized by lighting a group of lighting fixtures and turning on more lighting fixtures than when the number is less than the specified number . Provided with a plurality of human sensors for detecting the presence or absence of a person in the detection area and a plurality of lighting fixtures, the human sensors and the lighting fixtures are divided into a plurality of groups, and the human sensors within each group based on the detected number of people, at least in several lighting device Ru changing the lighting state of the lighting apparatus of a predetermined in that group, the number of people that were detected in the group is specified number or more in advance a plurality A lighting device characterized in that a lighting device in a large group set to include a plurality of groups is turned on, and more lighting devices are turned on than when the number is less than a specified number . The lighting apparatus according to claim 1, wherein each lighting fixture includes a human sensor .

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