JP2022056596A - Lighting system - Google Patents

Abstract

To provide a lighting system in which a lighting fixture can be adequately turned on depending on the movement of an object.SOLUTION: In a lighting system, a lighting device includes: a plurality of lighting fixtures 30 each having a light source; a camera 21 acquiring data in an area that includes an irradiation object; a processing part 40 determining operation instructions for the lighting fixtures using the direction of the irradiation object estimated by data acquired by the camera and the movement status of the object; a communication part 10 sending the operation instructions to the lighting fixtures; and a control part 50 controlling the lighting fixtures based on the operation instructions.SELECTED DRAWING: Figure 3

Description

Embodiments of the present invention relate to lighting systems.

There is known a lighting system that controls a lighting device existing in a person's movement direction according to a person's movement direction predicted by a motion sensor.

Japanese Unexamined Patent Publication No. 2012-216356

In such a lighting system, from the viewpoint of reducing power consumption, it is required to accurately turn on the lighting equipment according to the movement of the object.

An object to be solved by the present invention is to provide a lighting system capable of accurately lighting a lighting fixture.

In the lighting system according to the embodiment, a plurality of lighting fixtures each having a light source, a camera that acquires data of an area including an irradiation object, a direction of an irradiation object estimated from the data acquired by the camera, and an object. It includes a processing unit that determines an operation instruction to the luminaire using the movement status of an object, a communication unit that transmits the operation instruction to the luminaire, and a control unit that controls the luminaire based on the operation instruction.

According to the present invention, it is possible to provide a lighting system capable of accurately lighting a lighting fixture.

It is a top view which shows the state which used the lighting system which concerns on embodiment in a corridor. It is a side view which shows the state which used the lighting system which concerns on embodiment in an office. It is a perspective view which shows an example of the lighting apparatus which concerns on embodiment. It is a block diagram which shows the structure of the lighting apparatus which concerns on embodiment. It is a figure which shows an example of the connected device information which concerns on embodiment. It is a top view which shows the 1st Embodiment of a lighting system. It is a top view which shows the 2nd Embodiment of a lighting system. It is a side view which shows the 3rd Embodiment of a lighting system.

Hereinafter, the lighting system according to the embodiment will be described with reference to the drawings. Configurations having the same function in the embodiment are designated by the same reference numerals, and duplicate description will be omitted. The lighting device and the lighting system described in the following embodiments are merely examples, and do not limit the embodiments.

First, an application example of the lighting system 100 according to the embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a top view showing a state in which the lighting system according to the embodiment is used in a corridor, and FIG. 2 is a side view showing a state in which the lighting system according to the embodiment is used in an office.

The lighting system 100 shown in FIG. 1 includes a lighting device 1 and a lighting device 1A capable of communicating with the lighting device 1. In the embodiment of the lighting system 100 shown in FIG. 1, one lighting device 1 and three lighting fixtures 1A are placed on the ceiling of the passage 2 so as to illuminate the floor surface of the passage 2 such as a corridor by lighting. Are arranged. In the lighting system 100 shown in FIG. 1, the lighting device 1 is a master unit and the lighting fixture 1A is a slave unit. The lighting device 1 is a control device that controls the lighting device 1A by transmitting an operation instruction to the lighting device 1A. The luminaire 1A has a light source that turns on or off in response to an operation instruction transmitted from the luminaire 1. The lighting device 1 also has a light source that turns on or off.

The lighting system 100 shown in FIG. 2 includes only the lighting device 1. In the embodiment of the lighting system 100 shown in FIG. 2, a total of three lighting devices 1 are arranged so that the lighting device 1 illuminates each work space in the office. In the lighting system 100 shown in FIG. 2, the lighting device 1 is both a master unit and a slave unit. (Hereinafter, the lighting device 1 which is the master unit is referred to as "lighting device 1", and the lighting device 1 which is the slave unit is referred to as "another lighting device 1".) That is, the lighting device 1 is another lighting device. It is a control device that controls another lighting device 1 by transmitting an operation instruction to 1, and is also a lighting device that turns on or off according to an operation instruction transmitted from the other lighting device 1. The lighting device 1 has a light source that turns on or off. In the lighting system 100 shown in FIG. 2, the lighting fixture 1A, which is a slave unit, may be arranged.

As shown above, the lighting system 100 of the present embodiment includes at least one luminaire 1 and at least one luminaire 1A or at least one other luminaire 1. The lighting system 100 may include a plurality of lighting devices 1 or a plurality of lighting fixtures 1A.

Next, a configuration example of the lighting device 1 and the lighting fixture 1A will be described with reference to FIGS. 3 and 4.

FIG. 3 is a perspective view showing an example of the lighting device 1 according to the embodiment. The lighting device 1 according to the embodiment is a ceiling-mounted lighting device, which is a so-called base light. In the example shown in FIG. 3, the lighting device 1 has a camera unit 20 and a lighting unit 30. The lighting device 1 is not limited to the base light, but may be a ceiling light, a downlight, a spotlight, or the like. The lighting fixture 1A according to the embodiment may also be, for example, a base light as shown in FIG. 3, a ceiling light, a downlight, a spotlight, or the like. Further, the luminaire 1 and the luminaire 1A may be configured so as to be indistinguishable from each other in appearance, or the luminaire 1A may be configured not to include the camera unit 20. In this case, the camera unit 20 may be provided. It is possible to distinguish between the lighting device 1 and the lighting fixture 1A depending on the presence or absence of the lighting device 1.

FIG. 4 is a block diagram showing the configuration of the lighting device 1 according to the embodiment. As shown in FIG. 3, the lighting device 1 includes a communication unit 10, a camera unit 20, a lighting unit 30, an image processing unit 40, a control unit 50, and a storage unit 60. The image processing unit 40 is a processing unit that determines processing in the lighting system 100. Although the description of the lighting device 1A is omitted in the illustration, the lighting device 1A includes at least a communication unit 10, a lighting unit 30, and a control unit 50. The lighting fixture 1A may or may not include the camera unit 20, the image processing unit 40, and the storage unit 60.

The communication unit 10 transmits / receives information between the luminaire 1 and the luminaire 1A, or between the luminaire 1 and another luminaire 1. The communication unit 10 is realized by, for example, a predetermined communication circuit, a NIC (Network Interface Card), or the like. The communication method between the lighting device 1 and the lighting fixture 1A may be, for example, wireless communication such as a local area network (LAN). The communication method between the lighting device 1 and the lighting fixture 1A may be any communication method, and may be, for example, wired communication, infrared communication, or the like.

The communication unit 10 in the lighting device 1 acquires transmission information transmitted by the lighting device 1A and another lighting device 1. The transmission information acquired by the communication unit 10 is, for example, information (connected device information) regarding the lighting device 1A (connected to the lighting device 1) that transmits / receives information to / from the lighting device 1 and another lighting device 1. Further, the communication unit 10 in the luminaire 1A and the other luminaire 1 may acquire instruction information regarding the operation instruction of the luminaire 1. The communication unit 10 is an example of an acquisition unit.

Further, the communication unit 10 in the lighting device 1 transmits instruction information 63 indicating an operation instruction to the lighting device 1A and the other lighting device 1. At this time, the instruction information 63 may be transmitted to one luminaire 1A or one other luminaire 1, or the instruction information 63 may be transmitted to a plurality of luminaires 1A or another luminaire 1 at the same time. May be good. The communication unit 10 is an example of a transmission unit.

The camera unit 20 includes a camera 21, a camera control unit 22, and a storage unit 23. The camera 21 includes an image pickup device that electronically acquires an image, such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and captures a predetermined angle of view to generate data. The data generated by the camera unit 20 may be still image data or moving image data.

The camera control unit 22 controls shooting by the camera 21. Further, the camera control unit 22 outputs the data acquired by the shooting of the camera 21 to the image processing unit 40.

The storage unit 23 stores programs and data for realizing various controls of the camera unit 20. The storage unit 23 may store an image taken by the camera 21 or data acquired by taking a picture of the camera 21. The storage unit 23 is mounted by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. The storage unit 23 may be provided in the storage unit 60, which will be described later.

The lighting unit 30 has a light source 31 and a lighting control unit 32. The light source 31 has, for example, a semiconductor light emitting element such as an LED (Light Emitting Diode). The light source 31 is turned on or off in a manner corresponding to the control signal output from the lighting control unit 32.

The lighting control unit 32 controls turning on and off of the light source 31. The lighting control unit 32 outputs a control signal based on the instruction information 63 acquired by the communication unit 10, turns on the light source 31 to be turned off, or turns off the light source to be turned on. In the case of the lighting unit 30 capable of dimming the light source 31, the lighting control unit 32 may control the dimming degree of the light source 31. The lighting device 1 may control its own light source 31 based on the instruction information 63 transmitted by itself to the lighting fixture 1A or another lighting device 1.

The lighting unit 30 may include a storage unit 33. In this case, the storage unit 33 stores, for example, programs and data for realizing various controls of the lighting unit 30. The storage unit 33 is mounted by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. The storage unit 33 may be provided in the storage unit 60, which will be described later.

The storage unit 60 stores programs for realizing various controls of the image processing unit 40 and the control unit 50. The storage unit 60 is realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. The storage unit 60 stores the connected device information 61, the operation information 62, and the instruction information 63.

The connection device information 61 is information about a plurality of lighting fixtures 1A which are devices connected to the lighting device 1. FIG. 5 is a diagram showing an example of connected device information.

As shown in FIG. 5, the connected device information 61 includes, for example, a “Mac address”, a “number”, and a “strength”. The "Mac address" indicates identification information for identifying a plurality of luminaires 1A and other luminaires 1 connected to the luminaire 1. "Number" indicates a channel number assigned to communication between devices. The “strength” is, for example, RSSI (Received Signal Strength Indicator), and indicates the strength of receiving the transmission information transmitted by the lighting fixture 1A and the other lighting device 1. Further, the connected device information 61 may include information regarding "position" and information regarding "state". The information regarding the "position" here is information indicating in which direction the luminaire 1A and the other luminaire 1 are present with respect to the luminaire 1 (for example, north, south, east, west, up, down, left, and right). The information regarding the "state" is information indicating a lighting state of the lighting fixture 1A or another lighting device 1 (for example, lighting, extinguishing, blinking, red lighting, etc.).

The operation information 62 is information regarding an operation instruction for the lighting fixture 1A connected to the lighting device 1 and another lighting device 1. The operation information 62 corresponds to the operation determined by the image processing unit described later and the “operation instruction” for the luminaire 1A and the other illuminating device 1.

The instruction information 63 is information indicating an operation instruction for the lighting fixture 1A and the other lighting device 1. The lighting device 1 transmits an operation instruction to the lighting device 1A and another lighting device 1, and stores the instruction information 63 in the storage unit 60. The instruction information 63 may be stored in the storage unit 60 in association with the connected device information 61.

The image processing unit 40 is realized by, for example, using a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like to execute various programs stored in the internal memory using the RAM as a work area. Further, the image processing unit 40 can be realized by, for example, an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

The image processing unit 40 processes the image taken by the camera unit 20. The image processing unit 40 has an extraction unit 41, a determination unit 42, and a determination unit 43.

The extraction unit 41 extracts the object 3 reflected in the image taken by the camera 21. The extraction unit 41 recognizes the object 3 reflected in the image, for example, based on the result of image processing of the input image from the camera unit 20. The extraction unit 41 is an example of a recognition unit. Any image recognition process can be applied to the recognition process of the object 3 by the extraction unit 41. The extraction unit 41 may recognize the object 3 by using, for example, a learning model such as edge AI (Artificial Intelligence). Such an edge AI may be built in, for example, the lighting device 1, or may include an edge server connected to the lighting device 1.

The object 3 recognized by the extraction unit 41 is, for example, a person or an animal moving in the passage 2. Further, the object 3 may include a robot or other moving object that autonomously moves in the passage 2. Further, the object 3 recognized by the extraction unit 41 is, for example, a person staying in an office. People staying in the office include people who are working, people who are taking a break, people who are moving in the office, and so on. In a conventional lighting system using a motion sensor, insects may be detected by the motion sensor or malfunction may occur due to the influence of wind. In this way, by recognizing the object 3 in the extraction unit 41, it is possible to prevent the extraction unit 41 from recognizing the insect and causing the lighting device 1 to malfunction, or the lighting device 1 to malfunction due to the influence of the wind. It becomes possible.

The determination unit 42 determines the direction of the object 3 recognized by the extraction unit 41. The direction of the object 3 here is, for example, the direction in which the object 3 is moving or the direction of the face (line of sight) of the object 3. The direction of the object 3 can be determined based on the vector of the object 3 reflected in the image. Any image recognition process can be applied to the direction determination process by the determination unit 42. For example, the direction and moving direction of the object 3 may be estimated by estimating the vector of the object 3 from one image or a plurality of images taken at intervals, or the body parts of the object 3 may be estimated. The direction or moving direction of the object 3 may be estimated by estimating the vector of the object 3 from the direction or position of (face, pupil, body, hand, foot, etc.). Further, the determination unit 42 may determine the moving direction of the object 3 by using, for example, a learning model such as an edge AI. Such an edge AI may be built in, for example, the lighting device 1, or may include an edge server connected to the lighting device 1.

Further, the determination unit 42 may determine the attribute of the object 3 recognized by the extraction unit 41. The attribute of the object 3 here is the operating state of the object 3. For example, if the object 3 is moving, the attribute that it is moving is determined, and if the object 3 is stopped, the attribute that it is stopped is determined. Further, when the object 3 sits on a chair and the line of sight is directed downward from the horizontal, the attribute of being working is determined.

The determination unit 43 determines an operation instruction for the luminaire 1A connected to the illuminating device 1 and another illuminating device 1 based on the result determined by the determination unit 42. The determination unit 43 can determine an operation instruction based on the operation information 62 stored in advance in the storage unit 60. The determination unit 43 is learned from the operation information 62, and the determination unit 43 may determine the operation instruction.

The control unit 50 is realized by, for example, using a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like to execute various programs stored in the internal memory using the RAM as a work area. Further, the control unit 50 can be realized by, for example, an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

The control unit 50 gives an operation instruction to a plurality of lighting fixtures 1A connected to the lighting device 1 and another lighting device 1. Alternatively, the control unit 50 may give an operation instruction to the camera unit 20 and / or the lighting unit 30 of the lighting device 1 itself.

The control unit 50 stores the transmission information acquired by the communication unit 10 from the lighting fixture 1A and the other lighting device 1 in the storage unit 60. Further, the control unit 50 may store the instruction information 63 regarding the operation instruction of the lighting device 1 in the storage unit 60. As a result, the lighting device 1 can collectively grasp the instruction contents for the plurality of lighting fixtures 1A belonging to the lighting system 100.

The image processing unit 40 may execute a part or all of the processing performed by the control unit 50, or the control unit 50 may have a part or all of each processing unit included in the image processing unit 40.

Hereinafter, examples of the lighting system 100 of the present embodiment will be described.

In the first embodiment, as shown in FIG. 6, the lighting system 100 is implemented in a passage 2 such as a corridor.

In the passage 2, the luminaire 1 or the luminaire 1A is arranged on the ceiling of the passage 2 at regular intervals, and a plurality of luminaires 1A are connected to one luminaire 1, and the luminaire 1 and the luminaire 1A are connected. It is configured to configure a connection relationship with and. The connection relationship here indicates a relationship in which information is transmitted and received between the lighting device 1 and the lighting device 1A. In the embodiment shown in FIG. 6, the lighting device 1a and the lighting equipment 1AA, 1AB, 1AC, and 1AD are connected to each other. The quantity of the lighting device 1 and the lighting fixture 1A constituting the connection relationship is not limited to the above-mentioned quantity, but is arbitrarily determined. Further, the lighting devices 1 may be connected to each other, or one lighting device 1A may be connected to a plurality of lighting devices 1. In the embodiment shown in FIG. 6, the luminaires 1AB, 1AC, and 1AD are also connected to the luminaire 1b.

Then, in the embodiment shown in FIG. 6, the target portion 3 is a person and moves from the left side to the right side of the passage 2 in FIG.

In the embodiment of FIG. 6, the lighting device 1 includes a camera unit 20 and a lighting unit 30, and the lighting fixture 1A includes a lighting unit 30. The lighting device 1 includes a camera unit 20 so as to be in contact with the lighting unit 30, and the camera unit 20 is a photographing device that photographs a passage 2 in a predetermined range. It is desirable that the camera unit 20 is arranged so as to include the center in the width direction of the passage (the short side direction when the passage is viewed as a rectangle) in the photographing range. Further, it is preferable that the camera unit 20 is arranged so as to include the entire area in the width direction of the passage in the shooting range. The camera unit 20 does not have to be arranged on one end side of the lighting unit 30 as shown in FIG. 6, but is arranged at both ends of the lighting unit 30 and is 2 for one lighting device 1. It may be in the form of arranging one camera unit 20.

The lighting unit 30 in FIG. 6 is a lighting device that illuminates a passage 2 in a predetermined range by lighting a light source. In the lighting device 1, the shooting range of the camera unit 20 and the lighting range of the lighting unit 30 do not have to match, but at least a part of the shooting range of the camera unit 20 and the lighting range of the lighting unit 30 overlap. Is desirable.

In the lighting system 100 shown in FIG. 6, when an object 3 (a person in the embodiment of FIG. 6) moving in the passage 2 is reflected in the shooting data (image data or moving image data) acquired by the camera unit 20. Based on the direction and attributes of the object 3 reflected in the image, the lighting fixture 1A located in the direction in which the object 3 moves and the lighting fixture 1A located in the direction in which the object 3 moves are determined, and each lighting is performed. The operation instruction for the luminaire 1A is determined, and the instruction information indicating the operation instruction for each luminaire 1A is transmitted. As described above, according to the lighting system 100, the lighting fixture 1A that communicates with the lighting device 1 can be accurately turned on or off.

First, in the passage 2, the camera unit 20 of the illuminating device 1a arranged is subjected to a shooting operation at regular intervals or continuously for a fixed time, and shooting data is continuously acquired. Then, when the object 3 moves to the shooting range of the camera unit 20 of the lighting device 1a, the shooting data fluctuates, so that the operation of passing the shooting data to the image processing unit 40 of the lighting device 1a is performed. The fluctuation of the shooting data here is, for example, a fluctuation of the pixel value due to the inclusion of the object 3 in the shooting range.

Then, in the image processing unit 40 that has received the shooting data, the extraction unit 41 first extracts the position of the object 3 included in the shooting data. Specifically, the extraction unit 41 performs a recognition operation of the object 3 included in the shooting data, and extracts the position where the object 3 is recognized.

Next, the determination unit 42 determines the orientation and attributes of the person extracted by the extraction unit 41. For example, it is determined that the direction of the object 3 is toward the right side from the direction of the body or face of the object 3 in one photographed data. Further, for example, it is determined from the position of the hand of the object 3 in one photographed data that the object 3 is moving as an attribute of the object 3. It should be noted that the determination unit 42 can be expected to improve the accuracy of the determination by determining the orientation and the attributes using a plurality of shot data.

Next, the determination unit 43 determines an operation instruction based on the determination result of the determination unit 42. For example, in the embodiment shown in FIG. 6, since it is assumed that a person will move to the right side from the lighting device 1a in the future, the lighting devices 1AB, 1AC, and 1AD located on the right side from the lighting device 1a are turned on to turn on the lighting device. An operation instruction is determined so as to turn off the lighting fixture 1AA located on the left side from 1a. At this time, not only the operation instruction for turning on or off, but also the operation instruction for changing the lighting pattern may be determined based on the attribute of the object 3 determined by the determination unit 42. The lighting pattern here includes contents such as blinking operation and changing the lighting color.

Then, the operation instruction determined by the determination unit 43 is transmitted to the lighting appliances 1AA, 1AB, 1AC, and 1AD which are connected to the lighting device 1a. At this time, the operation instruction is transmitted from the communication unit 10 of the lighting device 1a to the communication unit 10 of each lighting fixture 1A.

Then, the lighting fixtures 1AA, 1AB, 1AC, and 1AD that have received the operation instruction control their own lighting unit 30 based on the operation instruction. Further, the operation instruction may include an operation instruction for the lighting device 1a. At this time, in the lighting device 1a, the operation instruction is passed to the lighting unit 30 via the control unit, and the lighting unit 30 of the lighting device 1a. Control is done. The operation instruction for the lighting device 1a is determined by using, for example, the positional relationship between the camera unit 20 and the lighting unit 30, and the determination result of the determination unit 42 for the object 3. As an example of FIG. 6, in FIG. 6, the camera unit 20 is arranged on the right side of the lighting unit 30, and after the camera unit 20 detects the object 3, the object 3 has an irradiation range of the lighting unit 30. Therefore, an operation instruction may be issued so that the lighting unit 30 of the lighting device 1a is turned off. On the contrary, when the camera unit 20 is arranged on the left side of the lighting unit 30, the object 3 enters the irradiation range of the lighting unit 30 after the object 3 is detected by the camera unit 20, so that the lighting device 1a The lighting unit 30 may be instructed to light up. Further, in determining the operation instruction of the lighting device 1a, it is possible to make a more precise judgment by taking into consideration the positional relationship between the shooting range of the camera unit 20 and the irradiation range of the lighting unit 30.

In the conventional lighting system using a motion sensor, once the motion sensor detects a person, a wide range of lighting is turned on. However, in the lighting system 100 of the present embodiment, the object 3 is used. Since only the lighting existing in the traveling direction can be turned on, it is possible to efficiently irradiate the light.

Further, in the embodiment shown in FIG. 6, the lighting device 1b is provided so that an instruction to turn off the light can be issued after the object 3 has passed, and the lighting device 1b can be used even when the object 3 moves in the opposite direction (left direction). It is desirable to have a connection relationship with the lighting fixtures 1AB, 1AC, and 1AD. That is, it is desirable that the luminaires 1AB, 1AC, and 1AD are in a connection relationship with two luminaires (illumination devices 1a, 1b) arranged so as to sandwich the luminaire itself. In this case, operation instructions are transmitted from the two lighting devices 1 to one luminaire 1A, but the luminaire 1A is controlled based on, for example, the operation instructions transmitted later. Set.

For example, following the above-mentioned example, when the object 3 enters the shooting range of the camera unit 20 of the lighting device 1b by passing under the lighting device 1AD in which the object 3 is lit, the lighting device 1b is set. The above-mentioned processing is performed, and the lighting appliances 1AB, 1AC, and 1AD located on the left side of the lighting device 1b are turned off. At the same time, an operation of lighting the lighting fixture 1A (not shown in FIG. 6) located on the right side of the lighting device 1b is performed.

Further, in the embodiment shown in FIG. 6, when the object 3 moves in the opposite direction (left direction), the object 3 enters the shooting range of the camera unit 20 of the lighting device 1b of the lighting device 1b. The above-mentioned processing is performed by the lighting device 1b, the lighting device located on the right side of the lighting device 1b is turned off, and the lighting devices 1AB, 1AC, and 1AD located on the left side of the lighting device 1b are turned on. Then, when the object 3 enters the shooting range of the camera unit 20 of the lighting device 1a, the above-mentioned processing is performed by the lighting device 1a, and the lighting appliances 1AB, 1AC, and 1AD located on the right side of the lighting device 1a are placed. At the same time as turning off the lights, the operation of turning on the lighting fixture 1AA located on the left side of the lighting device 1b is performed.

A second embodiment is shown in FIG. In the second embodiment shown in FIG. 7, the passage 2 is a T-junction. The control of the lighting system 100 in the second embodiment can be handled only by adding the lower part to the concept of the direction, but the lighting device 1 having a connection relationship in three directions exists. For example, in the second embodiment shown in FIG. 7, the illuminating device 1c arranged at the intersection of the T-shapes of the passage 2 is a left illuminating device 1AE, a right illuminating device 1AF, and a downward illuminating device. It has a connection relationship with 1AG.

The state of the second embodiment shown in FIG. 7 will be described. The object 3a is moving from the bottom to the top, and the object 3b is moving from the right to the left. By the above-mentioned processing, the lighting fixtures 1AF and 1AG existing in the movement path of the objects 3a and 3b are in a lit state. Then, the object 3b is in the shooting range of the camera unit 20 of the lighting device 1c arranged at the intersection of the T-shapes of the passage 2. Although it depends on the walking speed, if the objects 3a and 3b continue to move as they are, there is a risk of collision at the intersection of the T-shapes of the passage 2.

In such a state, the lighting system 100 in the second embodiment may determine the operation instruction so as to notify the danger of collision between the objects 3.

An example of a method for determining the risk of collision will be described. In the determination unit 43 of the lighting device 1c, in addition to the determination result of the determination unit 42, the operation instruction is determined in consideration of the lighting (control) state of each luminaire 1A. For example, in the second embodiment shown in FIG. 7, the lighting device 1c determines that the object 3b is moving to the left, and also grasps that the downward lighting is lit. In the lighting system 100 of the present embodiment, the fact that the downward illumination is lit indicates that a person is moving in the downward passage, so that the determination unit 43 may collide with the object 3b. It is determined that there is an operation instruction so that the lighting unit 30 of the lighting device 1c itself is lit with a warning (for example, blinking, lighting in red, etc.). The operation instructions for the lighting fixtures 1AE and 1AF may be given as described above. Further, for the lighting state of each lighting fixture 1A, the connection device information 61 of the storage unit 60 may be referred to, or the lighting state of each lighting fixture 1A may be collected each time.

Further, in determining the risk of collision, when two or more objects 3 are included in the shooting range of the camera unit 20 of the lighting device 1c, the determination unit 42 determines the direction and attributes of each object 3. The operation instruction may be determined so that the warning light is turned on when it is determined in the determination 43 that there is a risk of collision (interference) with each object 3 from the determination result. For example, if the estimated directions of a plurality of objects 3 collide (interfere) and the attributes of the objects 3 are moving, it is determined that there is a possibility of collision (interference), and a warning is lit. The operation instruction may be determined so as to be performed.

In the second embodiment shown in FIG. 7, the camera unit 20 of the lighting device 1 that lights up the warning of collision is arranged so as to photograph the blind spot portion of the passage for the object 3 when the object 3 passes through the passage. It is preferable to be installed. For example, in FIG. 7, the viewing angle of the object 3b in the object 3a direction is indicated by a dotted line. A region where 3b is visible and a blind spot region for 3b are defined with this dotted line as a boundary. It is preferable that the area to be the blind spot is photographed by the camera unit 20 of the lighting device 1 so that the blind spot of the object 3 can be supplemented. Briefly, in the present embodiment, since the camera unit 20 of the lighting device 1 is arranged on the ceiling, the camera unit 20 of the lighting device 1 is at least a part of all the wall surfaces constituting the intersection of the passage 2. It is preferable that the image is arranged so that it can be photographed. For example, in the second embodiment shown in FIG. 7, there are five wall surfaces constituting the intersection of the passage 2, 2a, 2b, 2c, 2d, and 2e, but at least a part of each wall surface is the lighting device 1. The camera unit 20 of the lighting device 1 is arranged so as to be photographed by the camera unit 20 of the lighting device 1. (Refer to the shooting range of the camera unit 20 shown by the dotted square in FIG. 7).
The state of the third embodiment shown in FIG. 8 will be described. In the third embodiment, the lighting system 100 is arranged in the office, and the lighting devices 1d, 1e, and 1f are arranged so as to illuminate the desk 4 and its vicinity. In the third embodiment, the lighting devices 1d, 1e, and 1f are connected to each other. In the embodiment of FIG. 8, the lighting device 1 directly above each of the desks 4 is arranged, but the lighting device 1 does not have to be directly above the desk 4. Further, instead of the lighting device 1, there may be a place where the lighting fixture 1A is arranged. Then, in the third embodiment, the lighting device 1 detects a person who is the object 3 and gives an operation instruction to the surrounding lighting device 1 or the lighting device 1A.

In the third embodiment, for example, in the lighting device 1, when the object 3 enters the shooting range of the camera unit 20, and the determination unit 42 of the lighting device 1 determines that the object 3 is stopped as an attribute of the object 3. An operation instruction is given to light the lighting unit 30 of the lighting device 1e itself. Further, in the third embodiment, the determination unit 42 of the lighting device 1 determines the line-of-sight direction of the object 3 as the direction of the object 3, and the lighting device 1 is determined according to the line-of-sight direction of the object 3 and the direction of the body. Alternatively, the operation instruction of the luminaire 1A is determined. Specifically, the lighting device 1 or the lighting fixture 1A existing in the line-of-sight direction of the object 3 is turned on, and the lighting device 1 or the lighting fixture 1A not in the line-of-sight direction of the object 3 is turned off. For example, when the object 3 directs its line of sight to the front (direction of the area where the light of the lighting device 1d is irradiated), the lighting device 1e lights up with respect to itself and the lighting device 1d which is the direction of the line of sight. The operation instruction is given so as to turn off the lighting device 1f that is not in the line-of-sight direction. Similarly, when the object 3 turns its line of sight to the rear, an instruction is given. Furthermore, when the object 3 directs the line of sight toward the desk 4 (when the line of sight is directed downward), the lighting device 1 existing in the line-of-sight direction does not exist, so that the lighting device 1e lights only the lighting device 1e. Then, an operation instruction is given so that the lighting devices 1d and 1e are turned off. The line-of-sight direction here is, for example, a direction estimated from the position of the black eye of the eye or a direction assumed from the direction of the face.

In the third embodiment shown in FIG. 8, the lighting device 1e detects the object 3c, and the lighting device 1f detects the object 3d. In this case, if the lighting device 1f is controlled to be lit in the line-of-sight direction of the object 3c, the object 3d may feel uncomfortable. Therefore, it is desirable that the lighting device 1f detecting the object 3d does not follow the operation instruction transmitted from the lighting device 1e, and gives priority to the operation instruction of itself (lighting device 1f). In other words, in a certain lighting device 1, when the lighting unit 20 is controlled by the operation instruction of the lighting device 1 itself, the control is given the highest priority.

In the lighting system 100 in the third embodiment, since only the lighting existing in the line-of-sight direction of the object 3 can be turned on, finer lighting control is performed as compared with the lighting system using the conventional motion sensor. It becomes possible to realize more comfortable motion control. In addition, fine lighting control makes it possible to efficiently irradiate the minimum required light.

The third embodiment shown in FIG. 8 can be applied not only to an office but also to any environment such as a cafe or a library where a person sits on a chair or stands and faces a desk.

In the above-described embodiments and examples, the configuration in which the lighting device 1 or the lighting device 1A includes a communication unit 10, a camera unit 20, an image processing unit 40, a control unit 50, and a storage unit 60 has been described. The unit or portion may be configured to be detachable from the lighting unit 30. That is, these units and portions may be detachably attached to the lighting unit 30 or the adapter attached to the lighting unit 30.

Further, in the above-mentioned example, the form in which the lighting device 1 includes the camera unit 20, the image processing unit 40, and the storage unit 60 has been described, but the lighting device 1 includes the camera unit 20, the image processing unit 40, and the storage unit 60. It may be configured not to be provided. The camera unit 20 may be arranged separately from the lighting device 1, the processing in the image processing unit 40 may be executed on a cloud server on the network, and the storage unit 60 may be executed on the network. It may be installed in the cloud server. When processing is performed by the image processing unit 40 via the communication network, the image data acquired by the camera unit 20 is transmitted from the communication unit 10 to the image processing unit 40 via the communication network. Then, the communication unit on the image processing unit 40 side receives the image data and executes the processing. The operation instruction, which is the execution result of the processing, is transmitted from the communication unit on the image processing unit 40 side to the communication unit 10 of the lighting device 1. After that, the operation instruction is passed to the control unit 50 and the lighting unit 30 is controlled.

Further, in the above-described embodiment, the lighting system 100 has been described as including the lighting device 1 and a plurality of lighting fixtures 1A capable of communicating with the lighting device 1, but the present invention is not limited to this. For example, the lighting system 100 may have a lighting device that does not communicate with the lighting device 1 and turns on and off according to a control signal from the lighting device 1A.

Although embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1 Lighting device 1A Lighting equipment 10 Communication unit 20 Camera unit 30 Lighting unit 40 Image processing unit 50 Control unit 60 Storage unit 100 Lighting system

Claims (6)

With multiple luminaires, each with a light source;
With a camera that acquires data for the area containing the irradiation target;
A processing unit that determines an operation instruction for the lighting fixture using the direction of the irradiation target object estimated from the data acquired by the camera and the movement status of the irradiation target object;
With a communication unit that transmits the operation instruction to the luminaire;
With a control unit that controls the luminaire based on the operation instruction;
Lighting system with. The processing unit is a lighting system characterized in that an operation instruction is determined based on a connection relationship between a plurality of preset lighting fixtures. Equipped with a plurality of the processing units
The lighting system according to claim 2, wherein the luminaire is connected to at least two or more processing units. A luminaire comprising at least one of the luminaires and at least one of the processing units.
When the control unit controls the lighting equipment included in the lighting device by an operation instruction determined by the processing unit included in the lighting device, the control unit controls the lighting equipment included in the lighting device.
The lighting system according to claim 3, wherein the lighting device is not controlled based on an operation instruction determined by a processing unit other than the processing unit included in the lighting device. When the data acquired by the camera includes a plurality of the irradiation objects,
From claim 1, the processing unit estimates a collision between the irradiation objects using the directions of the plurality of irradiation objects, and determines an operation instruction for warning lighting to the luminaire. The lighting system according to any one of 4. The processing unit
The collision of the illuminating object is estimated by using the direction of the illuminating object estimated from the data acquired by the camera and the control state of the luminaire having a connection relationship with the illuminating object. The lighting system according to any one of claims 2 to 4, wherein the operation instruction for warning lighting is determined.

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