JP2010186635A - Illumination apparatus, illumination system, and illumination method - Google Patents

Abstract

An illumination device, an illumination system, and an illumination method capable of performing natural brightness adjustment so as not to give a sense of incongruity to a customer are provided.
An illumination device 2 that performs brightness adjustment in cooperation with another illumination device 2 having a detection unit 25 that detects the presence or absence of an object in a detection area that is at least a part of an illumination range. The ID storage unit 22 that stores the illumination ID of the other illumination device 2 that is affected by the brightness improvement, the illumination ID acquisition unit 23 that acquires the illumination ID of the other illumination device 2 that has detected the object, and the acquired illumination ID Is included in the ID storage unit 22, a luminance adjustment unit 26 that increases the luminance is provided.
[Selection] Figure 4

Description

  The present invention relates to a lighting device, a lighting system, and a lighting method capable of adjusting luminance.

  2. Description of the Related Art Conventionally, a power saving system for illumination power that adjusts the brightness of illumination by detecting the presence or absence of a human in a predetermined area is known. This system is composed of one or more lighting fixtures, a human detection sensor provided corresponding to each lighting fixture, and a dimming control circuit that controls the entire lighting fixture. If the person is not detected, the illumination is darkened (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2003-178882

  By the way, in the above system, the illumination is brightened only in the vicinity of a place where a person is present. For this reason, when this is used in a wide space such as a store floor, there is a problem in that only the vicinity where the customer is located is brightened and the rest is darkened, which makes it uncomfortable.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an illumination device, an illumination system, and an illumination method capable of performing natural brightness adjustment so as not to give a sense of incongruity to a customer. .

  An illuminating device of the present invention is a lighting device that performs brightness adjustment in cooperation with another illuminating device having a detection unit that detects the presence or absence of an object in a detection area that is at least a part of an illuminating range. An ID storage unit that stores the illumination ID of another illumination device that is affected by the brightness improvement, an illumination ID acquisition unit that acquires the illumination ID of the other illumination device that has detected the object, and the acquired illumination ID is stored in the ID storage unit And a brightness adjusting unit that increases the brightness.

  Moreover, in the illuminating device of this invention, it is preferable that self was equipped with the detection part.

According to these configurations, when another illumination device detects the presence or absence of an object and improves the brightness, if the illumination ID of the other illumination device is present in its own storage unit, its own brightness is increased. Further, when the object itself is detected, the brightness of the other illumination devices can be increased. In other words, in conjunction with the luminance improvement of one lighting device, other lighting devices related to the one lighting device also increase the luminance, so that not only the vicinity of the object but also a predetermined range around it is brightened. be able to. Accordingly, for example, even in a wide space such as a store floor, not only the vicinity of the customer but also the periphery thereof can be brightened, so that it is possible to obtain an appropriate brightness that does not give the customer a sense of incongruity.
Further, when there is no customer, the standby is performed with the brightness reduced, so that power consumption can be saved. Furthermore, the lifetime of the lighting device can be extended by increasing the luminance when necessary, that is, by not always maintaining a high level of luminance.

  In the illumination device of the present invention, the detection unit is preferably a sensor in which a plurality of light receiving elements are distributed in a matrix.

  According to this configuration, since the movement of the object can be captured by the detection unit, it is possible to determine whether the detected object is a stationary object or a moving object. Accordingly, it is possible to increase the luminance of the lighting device only when there is a human (moving object), and it is possible to prevent the luminance of the lighting device from being increased only when an object is placed.

  In the lighting device of the present invention, it is preferable that the lighting ID acquisition unit acquires the lighting ID by power line communication.

  According to this configuration, since power line communication is performed, for example, an installation work of a dedicated network cable or the like is unnecessary, and the cost for wiring can be reduced.

  In the lighting device of the present invention, it is preferable that the ID storage unit stores the degree of influence on other lighting devices in association with the lighting ID, and the luminance adjustment unit adjusts the luminance according to the degree of influence.

  According to this configuration, since the luminance can be adjusted according to the degree of influence, the luminance can be adjusted stepwise or so as to cover the brightness of the lighting device with reference to the lighting device that has detected the customer. .

  The lighting system of the present invention is a lighting system including the above-described lighting device, another lighting device, and a control device that controls the lighting device and the other lighting device, and the other lighting device is a peripheral device. The illumination device further includes an illuminance measurement unit that measures the illuminance within a predetermined range in the control device, and the control device provides the other illumination device with the brightness improvement of the illumination device based on the illuminance information measured by the illumination measurement unit of the other illumination device. It is characterized by comprising an influence degree measurement unit that measures an influence degree, and an illumination information transmission part that associates an illumination ID of another illumination device with an influence degree and transmits the influence degree to the illumination device.

  According to this configuration, the control device can measure the degree of influence between the lighting devices based on the illuminance information measured by each lighting device, and can adjust the luminance of each lighting device based on the degree of influence. An illumination system can be provided.

  The illumination method of the present invention is an illumination method for illuminating a specific area with a plurality of illumination devices, and continuously detects the position of an object moving in the area, and based on the detection result, the illuminance in the area Is characterized in that the brightness of the plurality of lighting devices is adjusted so as to gradually decrease toward the outside centered on the object.

  According to this lighting method, there is provided a method of adjusting the brightness of the lighting device so as to brighten the surroundings of the person according to the movement of the person (object) and to darken the lighting as the distance from the person increases. Can be provided.

It is a block diagram of each component of the illumination system which concerns on this embodiment. It is a flowchart explaining the procedure which measures the influence which the brightness | luminance improvement of each illuminating device has on the illumination intensity in the illumination range of another illuminating device. It is a flowchart explaining the procedure which adjusts a brightness | luminance in each illuminating device. It is a figure explaining the adjustment of the brightness | luminance of an illuminating device according to a human motion. It is a figure explaining the various information memorize | stored in illuminating device AG.

  Hereinafter, an illumination device and an illumination system according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this embodiment, it is assumed that the degree of influence that the luminance improvement of each lighting device has on the illuminance within the lighting range of the other lighting devices is equal to each other.

  FIG. 1 is a control block diagram of the illumination system 1 of the present embodiment. As shown in FIG. 1, the lighting system 1 includes one or more lighting devices 2 capable of adjusting the luminance, and a central control device 3 that controls all the lighting devices 2.

  The central control device 3 (control device) includes a control unit 11, a storage unit 12, a communication unit 13 (illumination information transmission unit), and an influence degree measurement unit 14. The control unit 11 is a processing unit that controls the entire central control unit 3, and is configured as a microprocessor centered on a CPU 15 (Central Processing Unit). The control unit 11 includes a ROM 16 (Read Only Memory) that stores a control program and a temporary program. It is composed of a RAM 17 (Random Access Memory) for storing data.

  The storage unit 12 stores the illumination ID assigned to identify each lighting device 2 for all the lighting devices 2. The communication unit 13 functions as means for performing power line communication with each lighting device 2. The control unit 11 controls the brightness of each lighting device 2 by issuing a brightness adjustment command to each lighting device 2 via the communication unit 13, or other various information from one lighting device 2. The lighting device 2 is notified.

  The influence measuring unit 14 measures the influence exerted on the illuminance of the illumination range of the other illumination devices 2 when the luminance of each illumination device 2 is increased for all the illumination devices 2. Specifically, the illuminance within the illumination range of another illuminating device 2 when the luminance of one illuminating device 2 is increased is acquired, and based on the illuminance information (hereinafter referred to as “illuminance information”). The degree of influence that the luminance improvement of one lighting device 2 has on other lighting devices 2 is measured.

  The degree of influence is divided into three levels (high level / medium level / low level) according to a predetermined threshold, and when the illuminance information received from the lighting device 2 corresponds to the high level, the degree of influence is “high”. When it falls under the middle level, the impact level is “medium”, and when it falls under the low level, the impact level is measured as “small”.

  Then, the control unit 11 increases the luminance by associating the illumination ID of the illumination device 2 that has received the illuminance information (the illumination ID of the affected illumination device 2) with the degree of influence based on the illuminance information. It transmits to the illuminating device 2 (illuminating device 2 having influence). At this time, the control unit 11 determines that the lighting device 2 whose impact level is “small” is not affected by the luminance improvement, and does not transmit information regarding the lighting device 2. That is, the control unit 11 transmits only the information of the other lighting devices 2 having an influence degree of “large” or “medium” to the lighting device 2 whose luminance is increased.

  The illumination device 2 includes a storage unit 22 (ID storage unit), a communication unit 23 (illumination ID acquisition unit), an illuminance sensor 24 (illuminance measurement unit), an infrared sensor 25 (detection unit), a luminance adjustment unit 26, and each of these units. It is comprised by the control part 21 which controls each sensor. The control unit 21 is a processing unit that controls the entire lighting device 2 and is configured as a microprocessor centered on the CPU 27. The ROM 28 (Read Only Memory) stores a control program and a lighting ID for identifying itself. Or a RAM 29 for temporarily storing data.

  The communication unit 23 functions as means for performing power line communication with the central control device 3. The control unit 21 receives a brightness adjustment command from the central control device 3 and transmits / receives various information (such as illumination ID, influence degree, and illuminance information) via the communication unit 23.

  The illuminance sensor 24 is a means for measuring the illuminance within a predetermined illumination range around itself. The control unit 21 transmits the illuminance measured by the illuminance sensor 24 to the central control device 3 together with its own illumination ID. The infrared sensor 25 is means for detecting the presence or absence of a person (object) within a predetermined range around the infrared sensor 25. Since the movement of the detected object can be captured by using the infrared sensor 25, if the detected object does not move even after a certain period of time, it is regarded as a stationary object and can be excluded from the detection target. . Thereby, the brightness | luminance of the illuminating device 2 can be raised only when there exists a person, and it can prevent raising the luminosity of the illuminating device 2 only by the thing being put.

  The brightness adjusting unit 26 functions as a means for adjusting its own brightness. In the present embodiment, the luminance adjustment unit 26 can adjust the luminance level of the lighting device 2 in three levels (high luminance / medium luminance / low luminance). Note that high luminance is luminance that can provide a standard brightness to a customer in a general store or the like. The low luminance does not indicate a state where the illumination is turned off (illumination is off) but indicates that the lighting device 2 is turned on while suppressing power consumption compared to high luminance and medium luminance.

  The storage unit 22 illuminates within the illumination range of the other illuminating device 2 due to its own luminance improvement, the illumination ID of the other illuminating device 2, its degree of influence, and its own degree corresponding to the degree of influence. The brightness level is stored in association with each other. Specifically, if the degree of influence is “high”, the self is turned on with “high brightness”, and if the degree of influence is “medium”, it is turned on with “medium brightness”.

  With the above configuration, the lighting device 2 is based on the detection status of the human by the infrared sensor 25 of the own lighting device 2 and the infrared sensor 25 of the other lighting device 2, and the degree of influence associated with the lighting device 2 that has detected the human. Is adjusted (details will be described later).

  Here, with reference to the flowchart of FIG. 2, a procedure for measuring the degree of influence of the illuminance within the illumination range of the other illumination devices 2 by the central control device 3 by improving the luminance of each illumination device 2 will be described. Note that the measurement of the influence degree is performed when initial setting of the lighting system 1 is performed.

  First, the central control device 3 acquires illumination IDs from all the illumination devices 2 by power line communication (S01). Then, the central control device 3 adjusts the luminance of all the lighting devices 2 based on the acquired illumination ID, determines three luminance levels of high luminance / medium luminance / low luminance, and sets these luminance levels. It sets to all the illuminating devices 2 (S02).

  Next, the central control device 3 sets all the lighting devices 2 to low luminance based on the acquired lighting ID (S03). In this state, the central control device 3 makes one illumination device 2 have high luminance (S04). In this state, the illuminance sensor 24 of all the other illuminating devices 2 (illuminating devices 2 other than the illuminating device 2 having the high luminance described above) measures the illuminance within the illumination range of the illuminating device 2, and The control apparatus 3 acquires the measurement result (illuminance information) of the illuminance in each illumination apparatus 2 from these other illumination apparatuses 2 (S05).

  Then, the central control device 3 sets the degree of influence received from the lighting device 2 having high brightness for each of the other lighting devices 2 based on the illuminance information (S06). That is, the influence levels “large”, “medium”, and “small” are set for each lighting device 2 in accordance with the measured illuminance level. Then, the illumination IDs of the other illumination devices 2 having an influence level of “large” or “medium” are associated with the influence levels and transmitted to the illumination device 2 having high brightness (S07). In other words, at this time, the illumination device 2 having high brightness stores the illumination ID of the other illumination device 2 that is affected by its own luminance improvement and the degree of influence thereof.

  Subsequently, the central control device 3 returns the illumination device 2 having high luminance to low luminance (S08). Then, the central control device 3 repeats the processes from S04 to S08 in the ascending order (or descending order) of the illumination ID for all the lighting devices 2 (S09; No), and measures the influence degree for all the lighting devices 2. When the measurement is over, the measurement process is finished (S09; Yes). As a result, the illumination IDs and the degree of influence of the other illumination devices 2 that are affected by the brightness improvement of the device are stored in all the illumination devices 2.

  Next, with reference to FIG. 3, the procedure for adjusting the luminance in each lighting device 2 will be described. It is assumed that each illumination device 2 stores the illumination ID and the degree of influence of another illumination device 2 that is affected by the improvement in its own luminance by the above-described measurement process.

  First, the lighting device 2 determines whether or not a person has been detected by the infrared sensor 25 of the lighting device 2 (S11). When a person is detected by the infrared sensor 25 (S12), a flag indicating whether or not a person has been detected (hereinafter referred to as “detection flag”) is set to “1 (detected)” (S13). ), Increase its own brightness. That is, it is lit with high luminance (S14). Then, a signal indicating that a person has been detected (hereinafter referred to as “detection signal”) and its own illumination ID are transmitted to all other illumination devices 2 (S15).

  At this time, a detection signal from another lighting device 2 (that is, a signal indicating that a human is detected by the other lighting device 2) or a signal indicating that a human is no longer detected (hereinafter, “non-detection signal”). If the illumination ID of the other illumination device 2 of the transmission source is registered in itself, it is based on the degree of influence associated with the illumination ID. The brightness is not adjusted. That is, when a human being is detected by the own infrared sensor 25, the detection signal or the non-detection signal from the other lighting device 2 is ignored, and the light is always lit with high luminance.

  On the other hand, when a human being is not detected by its own infrared sensor 25 (S16), the lighting device 2 determines whether or not the detection flag is “1” (S17). When the detection flag is “1” (S18; Yes), the lighting ID and the non-detection signal are transmitted to all the other lighting devices 2 (S19), and the detection flag is set to “0 (not detected)”. ”(S20), and the processing after S21 is performed. On the other hand, when the detection flag is “0” (S18; No), the processing after S21 is executed as it is.

  That is, when a person cannot be detected, it is determined based on the state of the detection flag whether the person cannot be detected because the person has moved or whether the person cannot be detected because the person is originally absent. If the person cannot be detected because the person has moved (if the person cannot detect the person with the detection flag set to “1”), a non-detection signal is transmitted to the other lighting device 2 to notify that effect. However, if it cannot be detected because there is no human being, it waits as it is.

  Subsequently, the illuminating device 2 adjusts its own luminance according to the human detection status by the other illuminating devices 2. First, when a detection signal and a non-detection signal are not received from another illumination device 2 (S21), the illumination device 2 is lit with low luminance (S22).

  On the other hand, when the non-detection signal and the illumination ID are received from the other illumination device 2 (S23), it is determined whether or not the illumination ID of the other illumination device 2 is registered (stored) in its own storage unit 22. (S24). When the illumination ID is not registered (S25; No), the illumination device 2 ignores the non-detection signal and maintains the current luminance (S26). On the other hand, when the illumination ID is registered (S25; Yes), the illumination device 2 is one or more illumination devices 2 excluding the illumination device 2 of the received illumination ID among the illumination devices 2 registered in itself. When a detection signal is received (S27; Yes), that is, when a person is detected in one or more registered lighting devices 2, the degree of influence associated with each of these lighting devices 2 (lighting ID) Is set based on the highest influence degree (S28). On the other hand, when a detection signal is not received from another registered lighting device 2 (S27; No), that is, when all the registered lighting devices 2 have not detected humans, the light is lit at low brightness. (S29).

  Moreover, when a detection signal and illumination ID are received from the other illuminating device 2 (S30), it is discriminate | determined whether illumination ID of the said other illuminating device 2 is registered into self (S31). When the illumination ID is not registered (S32; No), the illumination device 2 ignores this detection signal and maintains the current luminance (S33). On the other hand, when the illumination ID is registered (S32; Yes), the current luminance level of itself is compared with the luminance level corresponding to the influence degree of the received illumination ID (S34), and the light is lit at a high level of luminance. (If the luminance level is the same, the current state is maintained).

  Next, with reference to FIG. 4 and FIG. 5, a state in which the luminance of the lighting device 2 is adjusted (changed) in accordance with the movement of the customer (human) will be described. In FIG. 4, it is assumed that seven illumination devices 2 (illumination devices A to G) are installed at equal intervals, and the mutual influence degree between the illumination devices 2 is equal.

  Fig.4 (a) is a figure which shows the initial state of all the illuminating devices 2 (illuminating device A-illuminating device G), and all the illuminating devices 2 are lighted with low brightness | luminance. Each of these lighting devices 2 stores the illumination ID, the degree of influence, and the luminance level corresponding to the degree of influence of the other lighting devices 2 that are affected by the brightness improvement of itself (see FIG. 5). For example, in the lighting device D, the lighting device C and the lighting device E on both sides of the lighting device D have an influence degree “high” / “high luminance”, and the lighting device B and the lighting device F have an influence degree “medium” / “medium luminance”. The lighting device A and the lighting device G are not registered because they have no influence (the degree of influence is “small”).

  FIG. 4B is a diagram illustrating a change in luminance of each lighting device 2 when the lighting device D detects a customer in the state of FIG. As shown in FIG. 4 (b), when the lighting device D detects a customer, the other lighting devices 2 (lighting devices A to C and E to G) have their own lighting IDs via the central control device 3. In addition, the detection signal is transmitted and the luminance of the device increases from the low luminance to the high luminance.

  On the other hand, the other illuminating devices 2 (illuminating devices A to C and E to G) adjust their own luminance based on the degree of influence associated with the received illumination ID of the illuminating device D. In other words, the luminance of the lighting device C and the lighting device E increases from low luminance to high luminance, the luminance of the lighting device B and the lighting device F increases from low luminance to medium luminance, and the lighting device A and the lighting device G include the lighting device D. Since is not registered, it lights up in a low-brightness state.

  Next, as shown in FIG. 4 (c), when the customer moves below the lighting device C from the state of FIG. 4 (b), the lighting device D does not detect the customer. The own illumination ID and the non-detection signal are transmitted to the devices A to C and E to G). Moreover, the illuminating device C detects a person and transmits its own illumination ID and a detection signal to the other illuminating devices 2 (illuminating devices A, B, and D to G).

  At this time, since the lighting device C has detected the customer by itself, the lighting device C increases the luminance (as a result, maintains the high luminance). Moreover, the illuminating device D adjusts its brightness | luminance based on the influence degree linked | related with illumination ID of the illuminating device C. FIG. The other lighting devices 2 (lighting devices A, B, and E to G) correspond to the luminance level corresponding to the influence level of the lighting device D that has received the non-detection signal (the luminance level set in FIG. 4B). , And the brightness of the device itself is adjusted based on the degree of influence associated with the illumination ID of the illumination device C.

  That is, the luminance of the lighting device A increases from low luminance to medium luminance, the luminance of the lighting device B increases from medium luminance to high luminance, the luminance of the lighting device D remains high, and the luminance of the lighting device E is high. The brightness decreases from medium brightness to medium brightness, the brightness of the illumination device F decreases from medium brightness to low brightness, and the brightness of the illumination device G remains low. In this way, each lighting device 2 automatically increases (brightens) the illuminance around the customer in accordance with the movement of the human, as shown by the curve L in FIGS. 4B and 4C. The brightness adjustment is performed so that the illuminance decreases as the distance from the object increases.

  As described above, in the present embodiment, when the other lighting device 2 detects a human and improves the brightness, if the storage unit 22 has the lighting ID of the other lighting device 2, Increase brightness. Moreover, the brightness | luminance of the other illuminating device 2 can be raised when self detects an object. That is, in conjunction with the improvement of the luminance of one lighting device 2, the luminance of other lighting devices 2 related to the one lighting device 2 is also increased. Can also be brightened. Accordingly, for example, even in a wide space such as a store floor, not only the vicinity of the customer but also the periphery thereof can be brightened, so that it is possible to obtain an appropriate brightness that does not give the customer a sense of incongruity.

  Further, when there is no customer, the standby is performed with the brightness reduced, so that power consumption can be saved. Furthermore, the lifetime of the lighting device can be extended by increasing the luminance when necessary, that is, by not always maintaining a high level of luminance.

  Furthermore, since the luminance can be adjusted according to the degree of influence, the luminance can be adjusted in stages with reference to the illumination device 2 that has detected a human being.

  In addition, since the lighting device 2 and the central control device 3 perform power line communication, for example, an installation work of a dedicated network cable or the like is not required, and the cost for wiring can be reduced.

  In the present embodiment, the luminance level and the degree of influence are divided into three stages, but this is only an example and can be further subdivided. Thereby, a natural brightness can be provided to a customer still more. Furthermore, the brightness levels of “High Brightness”, “Medium Brightness”, and “Low Brightness” are also recognized by the external light sensor installed separately, and are high during fine weather, low during rainy weather and at night. By setting, it is possible to harmonize with the external environment and further reduce power consumption.

  Moreover, in this embodiment, although the influence degree between the illuminating devices 2 shall be mutually equal, it is not restricted to this, It can apply also when a mutual influence degree differs.

  Further, as information stored in the lighting device 2, the lighting ID and the degree of influence of the other lighting device 2 that is affected by the improvement of the brightness of the lighting device 2 are not stored, but the brightness of the other lighting device 2 is affected by the brightness improvement. You may make it memorize | store the illumination ID and influence degree of the other said illuminating device 2 to receive.

  Further, in the present embodiment, the influence degree measurement and the luminance adjustment are performed for all the lighting devices 2, but the present invention is not limited to this. For example, the lighting devices 2 may be divided into groups, and the influence degree measurement and the luminance adjustment may be performed in units of groups.

  Further, regardless of the embodiment described above, the apparatus configuration and processing steps of the lighting system 1 and the device configuration and processing steps of the lighting device 2 and the central control device 3 are within the scope of the present invention. Changes can be made as appropriate.

  DESCRIPTION OF SYMBOLS 1 ... Lighting system 2 ... Lighting apparatus 3 ... Central control device 13 ... Communication part 14 ... Influence measurement part 22 ... Memory | storage part 23 ... Communication part 24 ... Illuminance sensor 25 ... Infrared sensor 26 ... Brightness adjustment part

Claims (7)

An illumination device that performs brightness adjustment in cooperation with another illumination device having a detection unit that detects the presence or absence of an object in a detection area that is at least a part of the illumination range,
An ID storage unit for storing the illumination ID of the other illumination device affected by the luminance improvement of the illumination device;
An illumination ID acquisition unit that acquires an illumination ID of the other illumination device that has detected the object;
A lighting device comprising: a luminance adjusting unit that increases luminance when the acquired illumination ID is present in the ID storage unit.   The lighting device according to claim 1, wherein the lighting device includes the detection unit. The detector is
The illumination device according to claim 1, wherein the illumination device is a sensor in which a plurality of light receiving elements are distributed in a matrix. The illumination ID acquisition unit
The lighting device according to any one of claims 1 to 3, wherein the lighting ID is acquired by power line communication. The ID storage unit
The degree of influence on the other lighting device is stored in association with the lighting ID,
The brightness adjusting unit is
The lighting device according to claim 1, wherein the luminance is adjusted according to the degree of influence. An illumination system comprising the illumination device according to any one of claims 1 to 5, the other illumination device, and a control device that controls the illumination device and the other illumination device.
The other lighting device is:
It further includes an illuminance measurement unit that measures the illuminance within a predetermined range in the periphery,
The control device includes:
Based on information on the illuminance measured by the illuminance measurement unit of the other illumination device, an influence degree measurement unit that measures the degree of influence the luminance improvement of the illumination device has on the other illumination device;
An illumination system comprising: an illumination information transmitting unit that associates the illumination ID of the other illumination device with the degree of influence and transmits the association to the illumination device. An illumination method for illuminating a specific area with a plurality of illumination devices,
The plurality of lighting devices continuously detect the position of an object moving in the area, and based on the detection result, the illuminance in the area gradually decreases toward the outside centering on the object. An illumination method characterized by adjusting the brightness of the lamp.

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