JP2009110688A - Illuminating device, illuminating method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that, in a conventional illuminating device, wasteful illumination can not be fully reduced, and, therefore, appropriate illumination can not be carried out. <P>SOLUTION: The illumination device is made provided with a plurality of illuminating parts 101 capable of individually controlling light, a position detecting part 102 for detecting a position of a human being, a movement state decision part 103 for judging a movement state of a human being, and a control part 104 for controlling the plurality of illuminating parts 101 so that a luminance in the vicinity of the position of the human being is to be higher than that at other regions, as well as a luminance in the vicinity of the position of the human being is to be of a level in accordance with the movement state that the movement state decision part 103 decided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an illumination device that performs illumination using a plurality of illumination units.

As a conventional lighting device, there has been known a lighting device that detects the position of a person with a human sensor and performs illumination according to the position of the person. (For example, refer to Patent Document 1). By using such an illumination device, it is considered that useless illumination can be reduced and useless energy consumption can be eliminated.
JP 2001-143877 A (first page, FIG. 1 etc.)

  However, in the conventional lighting device, since the lighting control is performed considering only the position of the person, useless lighting cannot be reduced sufficiently, and there is a problem that appropriate lighting cannot be performed.

  For example, normally, when a person is moving, for example, when walking, it is often not a situation where people are looking at things intensively. On the other hand, when a person is stationary, for example when sitting at a desk, it is possible that they are reading documents in a concentrated manner. it is conceivable that. However, when the illumination is performed only according to the position of the person as in the conventional illumination device, the illumination cannot be performed in consideration of the situation of the person, and the useless illumination can be sufficiently reduced. Could not do.

  An illumination device according to the present invention includes a plurality of individually illuminable light units, a position detection unit that detects a human position, a movement state determination unit that determines a human movement state, and detection of the position detection unit. According to the result, the plurality of illumination units are controlled so that the illumination in the vicinity of the human position is different from that in other areas, and the illumination in the vicinity of the human position is in the movement state determined by the movement state determination unit. It is an illuminating device provided with the control part which controls the said several illumination part so that it may become the illumination according to.

  With this configuration, it is possible to perform appropriate illumination according to the movement state of the person. Thereby, unnecessary illumination can be reduced and consumption of useless energy can be eliminated.

  Further, in the illumination device according to the present invention, in the illumination device, the control unit is configured so that, according to a detection result of the position detection unit, an illuminance near a human position is higher than other regions. While controlling a some illumination part, it is an illuminating device which controls the said some illumination part so that the illumination intensity near a human position may become the illumination intensity according to the movement state which the said movement state judgment part judged.

  With such a configuration, it is possible to perform illumination with appropriate illuminance according to the movement state of a person. Thereby, unnecessary illumination can be reduced and consumption of useless energy can be eliminated.

  Moreover, the illuminating device according to the present invention is the illuminating device, wherein the control unit controls the plurality of illuminating units so that the illuminance in the vicinity of the human position is lowered according to the distance from the human. .

  With such a configuration, it is possible to perform lean illumination according to the necessity of illumination.

  Further, in the illumination device according to the present invention, in the illumination device, the movement state determination unit determines a state in which a person is moving and a state in which the person is stopped. It is an illuminating device which controls the said some illumination part so that the illuminance of the state which is carrying out may become illuminance lower than the state where the person has stopped.

  With this configuration, unnecessary illumination can be reduced when moving.

  Further, in the illumination device according to the present invention, in the illumination device, the one or more illumination units are installed in a predetermined room, and the movement state determination unit further determines a state in which a person has entered the room, The said control part is an illuminating device which controls the said several illumination part so that the illumination intensity of the state in which the person entered the room becomes the illumination intensity lower than the state in which the person is moving.

  With such a configuration, it is possible to provide lighting necessary for entering the room without waste.

  In the illumination device according to the present invention, in the illumination device, illumination pattern information that is information for designating an illumination pattern when the plurality of illumination units illuminate the vicinity of the position where the person exists can be stored. A storage unit is provided, and the control unit is an illumination device that controls the plurality of illumination units according to illumination pattern information stored in the illumination pattern storage unit.

  With this configuration, the illumination pattern can be freely specified by the illumination pattern information.

  Moreover, the illuminating device according to the present invention is the illuminating device further including an illumination pattern receiving unit that receives the illumination pattern information and accumulates the received illumination pattern information in the illumination pattern storage unit. .

  With this configuration, the illumination pattern can be freely customized.

  Further, the lighting device according to the present invention receives an instruction to change the lighting pattern information stored in the lighting pattern storage unit in the lighting device, and according to the instruction to change the received lighting pattern information, The illumination device further includes the illumination pattern receiving unit that changes the illumination pattern information stored in the illumination pattern storage unit.

  With this configuration, the illumination pattern can be freely customized.

  According to the illumination device or the like according to the present invention, it is possible to perform appropriate illumination according to the movement state of a person.

  Hereinafter, embodiments of a lighting device and the like will be described with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again.

(Embodiment 1)
FIG. 1 is a block diagram of a lighting device in this embodiment.

  The illumination device 1 includes a plurality of illumination units 101, a position detection unit 102, a movement state determination unit 103, a control unit 104, and an illumination pattern storage unit 105.

  The illuminating unit 101 includes one or more light sources 1011 and can individually adjust light, for example, brightness and color of light. Here, as a specific example, the brightness will be described using the case where the illumination unit 101 includes a light source 1011 and a receiving unit 1012 as an example. The light source 1011 includes a light emitter (not shown) such as an LED (Light Emitting Diode), an incandescent lamp, or a fluorescent lamp. Here, as an example, it is assumed that power is supplied to the light source 1011 from a power source (not shown) or the like. The light source 1011 is provided with a light intensity control circuit (not shown) such as an inverter circuit that controls the light intensity during light emission, and the light intensity control circuit outputs a control signal indicating the light intensity received by the receiving means 1012. By operating accordingly, the luminous intensity of the light source 1011 is adjusted. For example, brightness control is performed by changing the voltage of the light source 1011 with a constant current. In the case where the color of light can be adjusted, for example, one illumination unit 101 has light emitters with a plurality of colors, and controls the luminous intensity of these light emitters, for example, on / off control. Alternatively, by changing light intensity individually, light of various colors may be expressed by combining colored light. Control of the color of light includes what is called color rendering, for example. The receiving unit 1012 receives a control signal indicating the intensity of illumination transmitted from the control unit 104 or the like. The control signal is, for example, a signal for increasing the luminous intensity of a desired illumination unit 101 by M (M is an arbitrary number) lux. Each illumination unit 101 is associated with identification information, for example, and the control signal transmitted from the control unit 104 or the like to which the identification information or the like is added is transmitted to the illumination unit 101 associated with the control signal. Receiving means 1012 receives. The receiving unit 1012 is realized by a wireless or wired receiving unit.

  Instead of using the light source 1011 having the luminous intensity control circuit as the light source of the illuminating unit 101, a light source that emits light having a luminous intensity according to simply supplied power, specifically, the voltage of the supplied power (see FIG. (Not shown) may be used. In this case, the input unit (not shown) that receives the supply of power of a desired voltage corresponding to each illumination unit 101, which is output individually from the control unit 104 to be described later to each illumination unit 101. ), And the power received by the input receiving unit is output to the light source, so that the light source has brightness according to the power supplied from the control unit 104, specifically, the voltage of the supplied power. You may make it light-emit.

  The position detection unit 102 detects the position of a human in a predetermined area, for example. The predetermined area includes, for example, a room. A human position is a position where a human exists. The position detection unit 102 is realized by, for example, one or more sensors such as a human sensor or a combination of a sensor and a means for acquiring human position information from the sensor result. Specifically, the human sensor is an infrared sensor that detects the position of a person in response to heat radiation from the human body, or the position of a person from the time it takes to transmit and receive ultrasonic waves reflected by an object. An ultrasonic sensor or the like for detecting Further, one or more weight sensors arranged on the floor or the like may be used, and the position of the person may be detected based on the position where the weight is detected. In addition, the position detection unit 102 may be a combination of a device that informs the position of a portable person and a device that calculates the position of the person from information that informs the position transmitted from the device. For example, a signal including identification information transmitted from a transmitting device such as a Bluetooth (registered trademark) device is received by a receiving device having a plurality of antennas, and the intensity of the signal received by each antenna is determined. It is possible to detect the position, i.e. the position of the person carrying the transmitting device. Such a configuration for detecting the position of the transmitting device is well known in the mobile phone position detection mechanism and the like, and thus the description thereof is omitted. Further, an RFID tag may be used instead of the transmitting device, and a tag reader / writer capable of detecting the position may be used as the receiving device. Further, the position detection unit 102 may detect a human position by a combination of an imaging unit that captures a video of a predetermined area and a detection unit that detects a human position from a change in the video captured by the imaging unit. good. Since a technique for detecting the position of a person from such a change in the image is known, the description thereof is omitted. Note that the position detection unit 102 may detect the position of a person by any method other than the above. It does not matter what detection result the position detection unit 102 outputs. For example, the position detection unit 102 may acquire coordinates indicating the position of a person as a position detection result, or may acquire information for identifying an area where a person is present as a detection result. Further, identification information and position information of a sensor that detects the position where a person is present may be acquired as a detection result.

  The movement state determination unit 103 determines the movement state of a person. The human movement state is a state including two states, for example, a state where the human is moving and a state where the human is stopped. For example, the movement state determination unit 103 determines that the person is stopped when the position of the person does not change for a predetermined or indefinite period of time, and the person moves when the position of the person changes. It is judged that it is in a state. However, here, only a change in position beyond a preset range may be considered as a change in position, and a slight movement of the position may be considered as a stopped state. Alternatively, the speed of the position change may be calculated from the position change by differentiation or the like, and if the value is equal to or greater than a predetermined threshold, it may be determined that the position is moving. In addition, using the speed of position conversion calculated in this way, a moving state including the moving speed of the human may be determined as the moving state of the human. For example, a movement state in which a human is moving at a high speed or a human is moving at a speed of 2 km / hour may be determined. The movement state determination unit 103 normally determines the movement state of a person according to the detection result of the position detection unit 102 described above. For example, when the position of the person detected by the position detection unit 102 does not change from the same position for a predetermined or indefinite period of time, it is determined that the person has stopped, and the position of the person detected by the position detection unit 102 If changes, it is determined that the person is moving. However, it does not matter how the movement state determination unit 103 determines the movement state of a person. In addition, the movement state determination unit 103 may detect the movement state of a person from other than the detection result of the position detection unit 102. For example, when a moving object is detected by sequentially comparing images taken by a photographing means or the like (not shown) and a moving object is detected, a moving object is detected. If no is detected, it may be detected that the person is in a stopped state. Such detection of the moving state is well-known as a motion detection technique such as MPEG, so that the description thereof is omitted. Further, the moving state determination unit 103 may determine the moving state, the stopped state, and the moving state other than the moving speed. For example, when the illumination unit or the illumination unit and the position detection unit are installed in a predetermined room, in addition to the above two states, the human state is determined as the human movement state determined by the movement state determination unit 103. You may make it include the state which entered the room. For example, a predetermined period immediately after the detection result of the position detection unit 102 indicating that the position of the person is in the area near the entrance of the predetermined room is obtained immediately after the person enters the predetermined room. You may judge that it is in a state. Alternatively, a sensor or the like that detects opening / closing may be installed on the door at the entrance of the room, and entry may be determined from the detection result of opening / closing of the door. The movement state determination unit 103 can usually be realized by an MPU, a memory, or the like. The processing procedure of the movement state determination unit 103 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  In accordance with the detection result of the position detection unit 102, the control unit 104 controls the plurality of illumination units 101 so that the illumination in the vicinity of the human position is different from other areas, and the illumination in the vicinity of the human position is The plurality of illumination units 101 are controlled so as to provide illumination according to the movement state determined by the movement state determination unit 103. For example, the control unit 104 controls the plurality of illumination units 101 according to the detection result of the position detection unit 102 so that the illuminance in the vicinity of the human position is higher (larger) than other regions, and the human The plurality of illumination units 101 are controlled such that the illuminance near the position becomes the illuminance corresponding to the movement state determined by the movement state determination unit 103. As a specific example, the control unit 104 determines that the light intensity of the illumination unit 101 that illuminates the vicinity of the position where a human exists among the plurality of illumination units 101 is higher than the light intensity of other light emitting units, The plurality of illumination units are controlled so as to have a luminous intensity corresponding to the movement state determined by the unit 103. The illuminance corresponding to the movement state determined by the movement state determination unit 103 is, for example, illuminance corresponding to each of a case where the person is in a movement state and a case where the person is stopped. The control unit 104 controls the plurality of illumination units 101 so that the illuminance in the vicinity of the person in the state where the person is moving is lower than the illuminance in the vicinity of the person when the person is stopped. Is preferred. Moreover, it is preferable that the control part 104 controls the some illumination part 101 so that the illumination intensity of the state in which the person entered is lower than the state in which the person is moving. Controlling the plurality of illumination units 101 described here is a concept including not only controlling all of the plurality of illumination units 101 but also controlling only some of the illumination units 101. It should be noted that when controlling a plurality of illumination units so that the illuminance near the human position is higher than the other areas, the light emission of the illuminating unit that illuminates the area other than the vicinity of the human position is stopped. Alternatively, the intensity of the illumination unit that illuminates an area other than the vicinity of the human position may be lower than the intensity of the illumination unit that illuminates the vicinity of the human position. The control performed by the control unit 104 here is to acquire a control signal for controlling the luminous intensity of one or more of the plurality of illumination units 101 and send it individually to each illumination unit 101. It is also possible to change the power supplied individually to one or more of the plurality of illumination units 101, specifically, to change the voltage of the supplied power. For example, the control unit 104 determines a movement state from information indicating a correspondence relationship between control information for controlling the illumination of the lighting unit 101 stored in a memory or the like (not illustrated) and information indicating a human movement state. The control information is acquired by reading the control information corresponding to the movement state of the person determined by the determination unit 103. In addition, in order to control the luminous intensity of the illumination unit 101 as described above, information indicating which illumination unit 101 indicates which position, or information corresponding thereto, is given to the control unit 104 in advance. It is preferable. The control unit 104 may control illumination characteristics other than the above illuminance. For example, the control unit 104 controls the plurality of illumination units 101 according to the detection result of the position detection unit 102 so that the illumination color in the vicinity of the human position becomes a different illumination color from other regions, and the human The plurality of illumination units 101 are controlled so that the illumination color in the vicinity of the position becomes the illumination color according to the movement state determined by the movement state determination unit 103.

  It is preferable that the control unit 104 controls the plurality of illumination units 101 so that the illuminance in the vicinity of the human position decreases (decreases) according to the distance from the human. Depending on the distance, the illuminance decreases stepwise or continuously as the distance from the human increases. For example, the luminous intensity of the plurality of illumination units 101 is adjusted so that the illuminance is highest at the position of the person and the illuminance decreases concentrically as the person moves away from the person. By doing this, the human hand will illuminate sufficiently brightly, and the position of relatively low importance that is a little away from the human will be illuminated to such an extent that the human can recognize the arrangement of the object. Power consumption can be reduced while considering the ease of use. For example, information indicating the correspondence between the distance from the human position to the illumination unit 101 and the luminous intensity (or illuminance) of the illumination unit 101 is stored in advance in a memory (not shown) or the like. And the control part 104 calculates | requires the distance between the present human position and the position of each illumination part 101, and determines the luminous intensity of each illumination part 101 using the information which shows the relationship between the distance and luminous intensity mentioned above. . And each illumination part 101 is controlled so that it light-emits with the determined luminous intensity.

  Further, the control unit 104 may control the plurality of illumination units 101 in accordance with illumination pattern information stored in an illumination pattern storage unit 105 described later. For example, the plurality of illumination units 101 may be controlled so as to provide illumination according to the movement state of the person according to such illumination pattern information. In addition, for example, the plurality of illumination units 101 may be controlled so that the illuminance decreases according to the distance from a human according to such illumination pattern information. Further, for example, the color of illumination, the distribution of the color, and the like may be controlled in accordance with such illumination pattern information. The illumination pattern information is information that designates an illumination pattern when the plurality of illumination units 101 illuminate the vicinity of a position where a human is present. The illumination pattern is, for example, an illuminance distribution or a light intensity distribution. Moreover, the information which specifies the color of illumination and the brightness of the whole illumination may be included. It does not matter what illumination pattern information is used by the control unit 104 to control the plurality of illumination units 101. For example, as lighting pattern information, information that maps the luminous intensity or illuminance centered on the human position is stored for each human movement state, and the control unit 104 detects the position detection unit 102. By applying the human position information to the illumination pattern information read according to the movement state determined by the movement state determination unit 103, which illumination unit 101 of the plurality of illumination units 101 has which intensity. The lighting unit 101 is controlled according to the determined result. Further, as the illumination pattern information, an expression indicating the relationship between the human position, the distance from the human position and the luminous intensity (or illuminance) is accumulated in the illumination pattern storage unit 105 for each human movement state, and the control unit Reference numeral 104 reads an expression that is illumination pattern information corresponding to the movement state determined by the movement state determination unit 103, and the position of the person detected by the position detection unit 102 is used as a reference point, for example, (0, 0). ), The light intensity (or illuminance) of each illumination unit 101 may be determined by substituting information on relative positions of the plurality of illumination units 101. Also, illumination pattern information indicating the correspondence between the distance from the human position to the illumination unit 101 and the luminous intensity (or illuminance) of the illumination unit 101 is stored in advance in a memory or the like not shown, and the control unit 104 may obtain the distance between the current human position and the position of each illumination unit 101, and may determine the luminous intensity of each illumination unit 101 using the above-described illumination pattern information. The movement state is a concept including a movement pattern. The control unit 104 can usually be realized by an MPU, a memory, or the like. The processing procedure of the control unit 104 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit). Moreover, the control part 104 may be provided with the transmission means (not shown) which transmits the control signal for controlling illumination. For example, the control signal includes an identification number of the lighting unit 101 to be controlled, for example, address information, a manufacturing number, or the like, or is given, and this identification information is used to identify the destination lighting unit 101. Control information may be transmitted to each illumination unit 101 as information to be performed. This transmission means is realized by a wired or wireless communication means.

  The illumination pattern storage unit 105 stores illumination pattern information that is information for designating an illumination pattern when the plurality of illumination units 101 illuminate the vicinity of a position where a human is present. Since the details of the illumination pattern information have been described above, the description thereof is omitted here. In addition, illumination pattern information is information which shows the combination of the distance from the position where a person exists, and the illumination intensity (or luminous intensity) in the position as an example. The illumination pattern storage unit 105 is preferably a non-volatile recording medium, but can also be realized by a volatile recording medium.

  Note that the illumination control performed by the control unit 104 may be illumination control that changes over time. For example, the control unit 104 may control the illumination in the vicinity of the human position so as to change over time according to the movement state determined by the movement state determination unit 103. For example, if a person is moving, the illuminance in the vicinity of the person may be instantly brightened, and if the person stops, the illumination unit 101 may be controlled so that the illuminance gradually increases. In addition, when a person is moving, even if a plurality of illumination units 101 are controlled so that illumination in the vicinity of the point where the person was present until immediately before, the illuminance decreases in order from the center side of the illumination and is turned off. good. Also, information specifying such a change with time of illumination may be defined in the illumination pattern information.

  The illumination pattern reception unit 106 receives illumination pattern information. The illumination pattern information received by the illumination pattern reception unit 106 is accumulated in the illumination pattern storage unit 105 and the like by the illumination pattern reception unit 106 and the like. The illumination pattern reception unit 106 also receives a change instruction for the illumination pattern information. In response to an instruction to change the illumination pattern information received by the illumination pattern reception unit 106, the illumination pattern information stored in the illumination pattern storage unit 105 or the like is changed, for example, rewritten by the illumination pattern reception unit 106 or the like. The reception described here is, for example, reception from an input unit, reception of an input signal transmitted from another device, reading of information from a recording medium, or the like. The input means for the illumination pattern information may be anything such as a numeric keypad, keyboard, mouse or menu screen. The illumination pattern reception unit 106 can be realized by a device driver for input means such as a numeric keypad or a keyboard, control software for a menu screen, or the like.

  Next, operation | movement of an illuminating device is demonstrated using the flowchart of FIG. Here, it is assumed that one or more illumination units 101 are installed inside a predetermined room. Here, the case where the control unit 104 outputs control information to each lighting unit 101 will be described.

  (Step S <b> 201) The control unit 104 reads the illumination pattern information from the illumination pattern storage unit 105.

  (Step S202) The position detection unit 102 determines whether or not a person has been detected. If the position detection unit 102 detects a person, the process proceeds to step S203. If not detected, the process proceeds to step S209.

  (Step S203) The position detection unit 102 acquires information on the position of the person from the result of detecting the person.

  (Step S204) The movement state determination unit 103 determines whether or not the state is immediately after a person enters the room. For example, if the position information detected by the position detection unit 102 in step S203 indicates a position within the room entrance area, it is determined that the person is near the room entrance and immediately after entering the room. Alternatively, it may be determined that a sensor has been entered when a sensor provided at the entrance of the room acquires information on human detection. If it is determined that the room has been entered, the process proceeds to step S211. If it is determined that the room has not been entered, the process proceeds to step S205.

  (Step S205) The movement state determination unit 103 determines whether or not the position of the person has changed from the position of the person detected immediately before. If changed, the process proceeds to step S206. If not changed, the process proceeds to step S213. Even when the position is not detected immediately before, the process proceeds to step S206.

  (Step S206) The movement state determination unit 103 determines that a human is moving.

  (Step S207) The control unit 104 sets the illuminance in the vicinity of the current human position detected by the position detection unit 102 so that the illuminance corresponding to the state of moving is determined by the movement state determination unit 103. Control information for controlling the luminous intensity of the illumination unit 101 is configured. In addition, when the illumination pattern information read out in step S201 includes illumination pattern information when a person is moving, the control unit 104 configures control information such that illumination according to the illumination pattern is performed. To do.

  (Step S208) The control unit 104 transmits the control information configured in step S207 to each illumination unit 101. Each illumination unit 101 emits light with a light amount corresponding to control information transmitted from the control unit 104. Then, the process returns to step S202.

  (Step S209) The control unit 104 configures control information for turning off all the illumination units 101.

  (Step S <b> 210) The control unit 104 transmits the control information configured in step S <b> 209 to each illumination unit 101. Each lighting unit 101 stops light emission in accordance with control information transmitted from the control unit 104. Then, the process returns to step S202.

  (Step S211) The control unit 104 sets the illuminance in the vicinity of the current human position detected by the position detection unit 102 so that the illuminance according to the state where the person enters the room is determined by the movement state determination unit 103. Control information for controlling the luminous intensity of the illumination unit 101 is configured. In addition, when the lighting pattern information read out in step S201 includes lighting pattern information in the case where a person has entered the room, the control unit 104 displays control information such that lighting according to the lighting pattern is performed. Constitute.

  (Step S212) The control unit 104 transmits the control information configured in step S211 to each illumination unit 101. Each illumination unit 101 emits light with a light amount corresponding to control information transmitted from the control unit 104. Then, the process returns to step S202.

  (Step S213) The movement state determination unit 103 determines whether or not the time during which the human position does not change has passed a predetermined time. For example, it is determined whether or not a predetermined time has elapsed since the time when the human position changed immediately before. If it has elapsed, the process proceeds to step S214, and if it has not elapsed, the process proceeds to step S206.

  (Step S214) The movement state determination unit 103 determines that the person is in a stopped state.

  (Step S215) The control unit 104 causes the illuminance in the vicinity of the current human position detected by the position detection unit 102 to be the illuminance according to the state that the human being is stopped as determined by the movement state determination unit 103. The control information for controlling the luminous intensity of each illumination unit 101 is configured. In addition, when the lighting pattern information read out in step S201 includes lighting pattern information when the person is in a stopped state, the control unit 104 displays control information for performing lighting according to the lighting pattern. Constitute.

  (Step S212) The control unit 104 transmits the control information configured in step S215 to each illumination unit 101. Each illumination unit 101 emits light with a light amount corresponding to control information transmitted from the control unit 104. Then, the process returns to step S202.

  Although the description is omitted in the flowchart, the illumination pattern reception unit 106 may receive new illumination pattern information, an instruction to change to the illumination pattern information, and the like as needed. The illumination pattern information stored in the illumination pattern storage unit 105 is updated with the information. Further, immediately after the illumination pattern information is accumulated, the process may be returned to step S201 and processed so that the updated illumination pattern information is immediately applied.

  In the flowchart of FIG. 2, the process is terminated by powering off or a process termination interrupt.

  Hereinafter, a specific operation of the lighting device in this embodiment will be described.

FIG. 3 is a schematic diagram showing a room in which the lighting device 1 is installed for explaining the specific example.
In this specific example, a plurality of human sensors 1021 of a plurality of illumination units 101 and a position detection unit 102 are arranged on the ceiling of a room. Here, the configuration other than the illumination unit 101 and the human sensor 1021 of the illumination device 1 is configured by a computer 1000, and is disposed outside a predetermined room, for example, in a management room or the like. However, it may be configured by dedicated hardware or the like. In addition, the plurality of lighting units 101 and the plurality of human sensors 1021 and the position detection unit 102 and the control unit 104 other than the human sensor 1021 of the lighting device 1, here the computer 1000, are connected by wire. To do. These connections may be wireless connections. In this case, a wireless transmitter is provided on the signal transmission side and a wireless receiver is provided on the signal reception side for the connection. .

  Here, the illumination unit 101 is assumed to be LED illumination. The arrangement interval of the illumination units 101 is not limited, but the illumination pattern can be controlled more finely as the arrangement interval is smaller. It is assumed that identification information that can be identified between the illumination units 101 is given to each illumination unit 101. Further, coordinates in the ceiling surface of each illumination unit 101, here (x, y) coordinates, are associated with identification information of the illumination unit 101 and stored in a storage unit (not shown) configured by a storage medium or the like. It is assumed that Here, it is assumed that the coordinates of the ceiling and the coordinates of the floor are the same coordinates. That is, the coordinates of the floor immediately below the position of the ceiling coordinates (x1, y1) are set to (x1, y1). Note that values such as coordinate values used in this specific example are for convenience of explanation, and units and the like are omitted as appropriate. In addition, values and relationships between values may be different from actual values.

  FIG. 4 is an illumination position management table for managing each illumination unit 101 and the position where the illumination unit 101 is arranged. The illumination position management table has attributes of “illumination ID” which is identification information of each illumination unit 101 and “position” which is information of (x, y) coordinates where each illumination unit 101 is arranged. .

  The position detection unit 102 includes a plurality of human sensors 1021 in this specific example. It is assumed that the human sensor 1021 is arranged on the ceiling such that ranges in which the human sensor 1021 can detect humans partially overlap except for the center. It is assumed that identification information that can be identified between the human sensors 1021 is assigned to the human sensors 1021 of the position detection unit 102.

  FIG. 5 is a schematic diagram showing on the floor an area where each human sensor 1021 can detect a human (hereinafter referred to as a detection area). In the drawing, for the sake of explanation, identification information “S011”, “S012”, and the like of the human sensor 1021 corresponding to each region are shown in each circular detection region detected by each human sensor 1021. In this specific example, information on the coordinates of the center of the detection area of each human sensor 1021 is stored in advance in a memory or the like, and if only one human sensor 1021 detects a person, The detection unit 102 reads the coordinates of the center of the area that can be detected by the human sensor 1021 and determines that a person is located on the coordinates. In addition, when two or more human sensors 1021 whose detection areas partially overlap each other detect humans at the same time, the position detection unit 102 further calculates the coordinates of these centers from a plurality of centers of these detection areas. It is assumed that this position is defined in advance so as to determine that a person is located. That is, as shown in FIG. 5, when only the human sensor 1021 of “S012” detects a human, it is determined that the human is located at the center position A of the detection area of the human sensor 1021 of “S012”. When the human sensor 1021 of “S012” and “S013” detects a person, the center position A of the detection area of the human sensor 1021 of “S012” and the detection area of the human sensor 1021 of “S013” It is determined that a person is located at an intermediate position C with respect to the center position B.

  FIG. 6 is a detection position management table for managing the correspondence between the identification information of the human sensor 1021 and the center position of the detection area. The detection position management table has attributes of “sensor ID” that is identification information of the human sensor 1021 and “center position” that is coordinates of the center position of the detection area. It is assumed that the detected position management table is accumulated in advance in a storage unit such as a storage medium (not shown).

  First, when the operation of the illumination device 1 is started, the control unit 104 reads the illumination pattern information from the illumination pattern storage unit 105. A specific example of the movement pattern information will be described later.

  Next, the position detection unit 102 starts human detection. Here, it is assumed that one human is in the room, and two human sensors 1021 with “ID” “S025” and “S026” detect humans. Suppose that

  The position detection unit 102 acquires information indicating that the human sensor 1021 having “ID” “S025” and “S026” has detected a person. Then, the coordinates of the center position of the detection area of the human sensor whose “ID” is “S025” are acquired from the detection position management table shown in FIG. Further, the coordinates of the center position of the detection area of the human sensor whose “ID” is “S026” are acquired from the detection position management table shown in FIG. Here, coordinates (150, 90) and (180, 90) are acquired, respectively. In this case, since the two human sensors 1021 detect a person, the midpoint of these coordinates is calculated. The calculated coordinates of the midpoint are (165, 90). The position detection unit 102 acquires the calculated coordinate information as coordinates indicating a human position.

  Next, the movement state determination unit 103 compares the coordinate indicating the human position acquired by the position detection unit 102 with the coordinate information specifying the area near the entrance of the room, and the coordinate indicating the human position is the entrance. It is determined whether or not the coordinates are in a nearby region. If the coordinates indicating the position of the person are within the area near the entrance, it is determined that the person has entered the room. If it is not within the area near the entrance, it is determined that the person is not in a state immediately after entering the room. Here, it is assumed that the area near the entrance is a rectangular area having coordinates (20, 300), (20, 250), (0, 300), and (0, 250) as vertices. For this reason, it is determined here that the person has not entered the room.

  Next, the movement state determination unit 103 determines whether or not the coordinates indicating the position of the person acquired by the position detection unit 102 have changed, and whether the person is moving, that is, whether the person is moving, Judge whether it is in a stopped state. Here, it is immediately after the start of position detection, and since there is no coordinate information indicating the position of the immediately preceding person, it is determined in a predesignated state, here “a person is moving”.

  Next, the control unit 104 acquires information for designating the light intensity of the illumination unit 101 according to the movement state of the person determined by the movement state determination unit 103.

  FIG. 7 is an illuminance management table showing a relationship between a human moving state and the illuminance illuminated by the illumination unit 101. The illuminance management table has attributes of “moving state” that is a moving state of a person and “illuminance” that is the illuminance of the brightest part determined according to the moving state. It is assumed that the illuminance management table is accumulated in advance in a storage unit such as a storage medium (not shown).

  The control unit 104 acquires illuminance information corresponding to the movement state determined by the movement state determination unit 103 from the illuminance management table illustrated in FIG. Here, since the movement state determination unit 103 has determined that “the person is moving”, the attribute value of “movement state” in the advanced management table shown in FIG. 7 is “moving”. Get the value of "illuminance". It is assumed that the acquired value is “300 (looks)”.

  Next, the control unit 104 acquires coordinate information (165, 90) indicating the position of the person detected by the position detection unit 102.

  Then, the control unit 104 controls each illumination unit 101 using the illuminance information corresponding to the moving state, the coordinate information indicating the position of the person, and the illumination pattern information already read from the illumination pattern storage unit 105. Control information is configured.

  FIG. 8 is a schematic diagram showing illumination pattern information stored in the illumination pattern storage unit 105. Here, the illumination pattern information is information that defines the relationship between the position (coordinates) of each illumination unit 101 and the illuminance with reference to the position where the person is detected. That is, it is information that defines the illuminance distribution of illumination. In particular, in this specific example, the illumination pattern information is information that defines an illumination pattern that spreads concentrically and the illuminance becomes discontinuous, in other words, gradually decreases as the distance from the center increases. Are arranged on the xy coordinate system such that becomes the origin (0, 0). The coordinate system of the illumination pattern information and the coordinate system where the illumination unit 101 is arranged are overlapped by coordinate transformation or the like so that the position where the human is detected coincides with the center of the concentric area, that is, the origin. The illuminance by each illumination unit 101 is determined by determining in which area on the illumination pattern each illumination unit 101 is arranged. For example, when the coordinate system of the illumination unit 101 is coordinate-transformed so that the coordinates at which a human is detected coincide with the origin of the illumination pattern information, the illumination unit 101 located in the first region 81 that is the innermost region. Is determined to be 100% illuminance with respect to the maximum illuminance determined according to the movement state of the person. The illumination unit 101 located in the outer ring-shaped second region 82 has an illuminance of 70% with respect to the maximum illuminance, and further, the illumination unit 101 located in the outer ring-shaped third region 83. Is determined to be 40%. Here, it is determined that the region is an inner region on the boundary between the regions. Here, a case where the same illumination pattern information is used regardless of the movement state of the person will be described, but the illumination pattern to be used may be switched according to the movement state.

  First, the control unit 104 manages the illumination position shown in FIG. 4 so that the coordinates (165, 90) indicating the human position detected by the position detection unit 102 become the origin (0, 0) of the illumination pattern information. The coordinates of each illumination unit 101 shown in the table are coordinate-transformed, in this case, simply translated. And it is judged which area | region of the illumination pattern information shown in FIG. 8 contains the coordinate of each illumination part obtained by coordinate conversion.

  FIG. 9 is a diagram illustrating a relationship among the position of the illumination unit 101, the position of the person, and the illumination pattern. In the figure, the position of the human is M. In the figure, the number displayed on the illumination unit 101 is an illumination ID.

  For example, as shown in FIG. 9, the illumination of “ID = 44” is determined to be included in the first region 81 because the coordinate after coordinate conversion is (−5, 0). In addition, since the illumination unit 101 with “ID = 43” has the coordinate after coordinate conversion of (−15, 0), the illumination unit 101 with “ID = 42” has the coordinate after coordinate conversion in the second region 82. Since it is (−25, 0), it is determined to be included in the third region 83. Further, it is determined that the illumination unit 101 with “ID = 41” is not included in any region.

  And the control part 104 controls the brightness which each illumination part 101 light-emits according to the area | region where each illumination part 101 is arrange | positioned judged from a person's position and an illumination pattern. Configure.

  Since the maximum illuminance acquired from the illuminance management table according to the movement state is 300 lux, the control unit 104 has an illuminance measured on the floor of the illumination unit 101 in the first area 81 of 100%. Control information for controlling to be 300 lux is configured. For example, for the illumination unit 101 with “ID = 43”, control information is configured such that the illuminance is 300 lux. Similarly, control information is configured to control the illumination unit 101 in the second region 82 so that the illuminance measured on the floor is 210 lux, which is 70% illuminance. For example, for the illumination unit 101 with “ID = 42”, control information is configured such that the illuminance is 300 lux. Similarly, control information is configured to control the illumination unit 101 in the third region 83 so that the illuminance measured on the floor is 120 lux, which is 40% illuminance. For example, for the illumination unit 101 with “ID = 43”, control information is configured such that the illuminance is 120 lux. In addition, for the illumination unit 101 outside the third region, control information for turning off the illumination is configured. In order to obtain a predetermined illuminance, what kind of control is performed on the illumination unit 101, for example, what voltage is controlled to be applied to a light source (not shown), etc. The control information such as information indicating the correspondence between the illuminance and the voltage is acquired in advance, and the control information is configured such that control according to this information is performed in each illumination unit 101. do it.

  And the control information which the control part 104 comprised is transmitted to each illumination part 101. FIG.

  In each illumination unit 101, control according to control information transmitted from the control unit 104 is performed. For example, in each illumination unit 101, when control information is input to the light source 1011, a voltage corresponding to the control signal is applied to the light emitting unit of the light source 1011 by a light intensity control circuit or the like of the light source 1011. As a result, each illumination unit 101 illuminates the vicinity of the position where the person is detected with the illumination pattern indicated by the illumination pattern information.

  FIG. 10 is a schematic diagram illustrating a state in which the illumination unit 101 performs illumination.

  Next, it is assumed that only the human sensor 1021 whose “ID” is “S026” detected the human as a result of the movement of the human immediately after.

  In this case, similarly to the above, the coordinates of the human position are acquired according to the position of the human sensor 1021, and it is determined whether or not the human position coordinates have changed for a predetermined time, for example, 3 seconds or more. To do. Here, since it has changed, it is determined that the position of the person is moving as described above. For this reason, it is determined that the moving state of the human is a moving state, and the lighting according to the lighting pattern indicated by the lighting pattern information is performed on the current human position in the same manner as described above. The illumination performed at this time is the same as in FIG. 10 except that the illumination position is different.

  As a result, it is possible to move the position where the illumination is performed following the position where the person has moved, and to efficiently illuminate the vicinity of the person with the brightness considered necessary for the state where the person is moving. it can.

  Here, let us consider a case where a person in the room has stopped without moving as described above. In this case, the two human sensors 1021 having “ID” “S025” and “S026” repeatedly detect a human. Until the first 3 seconds elapse, it is determined that the coordinates of the person's position have not changed for a predetermined time, for example, 3 seconds or more, so it is determined that the person is moving, and The illumination according to the state in the same movement is performed. When the two human sensors 1021 whose “ID” is “S025” and “S026” detect a person when 3 seconds have elapsed, the movement state determination unit 103 detects that the position detected by the position detection unit 102 is 3 seconds. It is determined that there has been no change, and it is determined that the person has stopped.

  And the control part 104 acquires the value of the illumination intensity corresponding to the stopped state, 700 lux here, from the illumination intensity management table | surface shown in FIG. And the control information for performing the illumination according to illumination pattern information is comprised as mentioned above. However, since the brightest illuminance is 700 lux here, the illumination unit 101 in the first region 81 has an illuminance of 700 lux, and the illumination unit 101 in the second region 82 has an illuminance of 490 lux. For the illumination unit 101 in the area 83, control information is configured so that illumination is performed at 280 lux. And the control information which the control part 104 comprised is transmitted to each illumination part 101, and the illumination part 101 illuminates the position vicinity which detected the person brighter than the first brightness with the illumination pattern which illumination pattern information shows.

  As a result, it is possible to illuminate the position where the person has stopped, and to efficiently illuminate the vicinity of the person with the brightness considered necessary for the state where the person is stopped.

  FIG. 11 is a schematic diagram illustrating a state in which the illumination unit 101 performs illumination.

  Here, let us consider a case where a human enters a room. In this case, the human sensor 1021 whose detection area is in the vicinity of the entrance of the room detects a person, and the movement state determination unit 103 uses the coordinates indicating the position of the person acquired by the position detection unit 102 and the area in the vicinity of the entrance of the room. Is compared with the coordinate information designating “”, it is determined that the coordinate indicating the position of the person is the coordinate in the area near the entrance. Then, the movement state determination unit 103 determines that a person has entered the room. For example, assuming that the human coordinate immediately after entering the room detected by the position detection unit 102 is (10, 270), the area near the entrance has coordinates (20, 300), (20, 250), (0, 300). Therefore, it is determined here that a person has entered the room because the rectangular area has apexes (0, 250).

  And the control part 104 acquires the value of the illumination intensity corresponding to the state which entered the room, 100 lux here, from the illumination intensity management table | surface shown in FIG. And the control information for performing the illumination according to illumination pattern information is comprised as mentioned above. This control information is transmitted to each illumination unit 101, and the illumination unit 101 illuminates the vicinity of the position where the person is detected, here, the vicinity of the entrance with the illumination pattern indicated by the illumination pattern information slightly darkly.

  As a result, it is possible to illuminate the position where the person entered the room, and to efficiently illuminate the vicinity of the person with the brightness considered necessary when the person entered the room.

  FIG. 12 is a schematic diagram illustrating a state where the illumination unit 101 performs illumination.

  The illumination pattern information stored in the illumination pattern storage unit 105 gives new illumination pattern information to the illumination pattern reception unit 106 or gives information for changing the illumination pattern information via the illumination pattern reception unit 106. It can be changed or updated.

  FIG. 13 is a diagram illustrating an example of an input interface for information received by the illumination pattern receiving unit 106. This input interface is displayed on a touch panel or a display as an input device. The input interface includes a color specification menu 141 for specifying the color of the illumination, a brightness specification menu 142 for specifying the maximum brightness of the illumination according to the movement state of the person, and the size and illuminance of each area of the illumination pattern. A pattern designation menu 143 for designating the distribution is provided.

  When the user who manages the lighting device 1 selects one color from the palette indicating the light color of the color designation menu 141, for example, touches the top of one color with a finger or the like, the lighting pattern reception unit 106 receives an instruction to change the color of light emitted from the illumination unit 101 to the selected color, and changes the illumination pattern information stored in the illumination pattern storage unit 105 in accordance with this instruction.

  Further, on the brightness designation menu 142, a bar representing the brightness of the illumination is displayed, and a user who manages the lighting device 1 or the like has one brightness on the brightness designation menu 142. When the position is touched with a finger or the like, the illumination pattern reception unit 106 receives an instruction to specify the brightness of the brightest part when the illumination is performed according to the illumination pattern information as the selected brightness. The illumination pattern information stored in the illumination pattern storage unit 105 is changed. The brightness may be designated independently by selecting a menu or the like for each human movement state.

  In addition, the user who manages the lighting device 1 touches the contour of each concentric circle indicating the illumination range displayed on the pattern designation menu 143, that is, the area to be illuminated, and moves the finger in the inner or outer direction of the circle. The touched contour moves along the finger, the size of the touched concentric circle changes, and the illumination pattern acceptance unit 106 accepts an illumination range change instruction proportional to the change. In addition, when the color designation menu 141, the brightness designation menu 142, or the like is operated immediately after touching each area divided by the concentric circles, the illumination pattern reception unit 106 receives designation of the illumination color and brightness of each area. Then, according to these received instructions, the illumination pattern information stored in the illumination pattern storage unit 105 is changed.

  It should be noted that the illumination pattern information file prepared in advance is read by the illumination pattern reception unit 106 by operating the reference button 144 or the like, for example, so that the entire illumination pattern information stored in the illumination pattern storage unit 105 is read. May be overwritten.

  In addition, although the instruction is received on the touch panel here, the input interface, the input interface, and the like are not limited. For example, an interface similar to that shown in FIG. 13 displayed on the display may be operated using a mouse or the like. .

  As described above, by changing or rewriting the illumination pattern information via the illumination pattern receiving unit 106, it becomes possible to intuitively and easily operate the illumination pattern.

  In the above specific example, the light intensity and illuminance values serving as the reference according to the movement state, for example, information indicating the value of the brightest part, and the illumination pattern information common to all movement states, for example, the distribution of light intensity and illuminance The lighting pattern is determined for each movement state from the information expressed by the ratio of brightness. However, in the present invention, the illumination pattern is determined by using the illumination pattern information prepared for each movement state and specifying the light intensity and illuminance value distribution for each movement state according to the movement state. May be. For example, the illumination pattern information for each moving state is that the first area 81 is 700 lux, the second area 82 is 400 lux, and the third area is 100 lux for the stopped state, for example, the illumination pattern for each moving state. Information is information in which the illuminance value for each area is specified, such as 300 lux for the first area 81, 150 lux for the second area 82, 100 lux for the third area, etc. is there.

  As described above, according to the present embodiment, the movement state of the person is determined, and the vicinity of the person is illuminated according to the determined movement state. Therefore, appropriate illumination according to the movement state of the person is provided. It can be carried out. Thereby, unnecessary illumination can be reduced depending on the moving state, and the efficiency of power consumption can be improved.

  In the present embodiment, the control unit 104 causes the illuminance in the vicinity of the human position to be higher than those in other regions, and the illuminance in the vicinity of the human position becomes the illuminance according to the moving state of the human. The plurality of illumination units are controlled. However, in the present embodiment, as a result, the illuminance may be set as described above. For example, the illumination unit illuminates the vicinity of a human position. The plurality of illuminating units are controlled so that the luminosity of 101 is higher than that of the illuminating unit 101 that illuminates other regions, and the illuminance near the human position becomes a luminosity according to the moving state of the human. Also good.

  In each of the above embodiments, each process (each function) may be realized by centralized processing by a single device (system), or by distributed processing by a plurality of devices. May be.

  Furthermore, the processing in the present embodiment may be realized by software. Then, this software may be distributed by software download or the like. Further, this software may be recorded and distributed on a recording medium such as a CD-ROM. This also applies to other embodiments in this specification.

  Note that the software that implements the information processing apparatus in each of the embodiments is the following program. That is, this program causes a computer to detect a position of a person, detect a position of the person, determine a state of movement of the person, determine a state of movement of the person, and detect lighting in the vicinity of the position of the person. Controls a plurality of illumination units that can be individually dimmed so that the illumination is different from other regions, and illumination near the human position is illumination according to the movement state determined in the movement state determination step. And a control step for controlling the plurality of illumination units.

  In the above program, in a transmission step for transmitting information, a reception step for receiving information, etc., processing performed by hardware, for example, processing performed by a modem or an interface card in the transmission step (only performed by hardware). Not included) is not included.

  Further, the computer that executes the program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  In the above embodiment, it is needless to say that two or more communication means existing in one apparatus may be physically realized by one medium.

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

The block diagram of the illuminating device concerning embodiment of this invention. Flow chart for explaining the operation of the illumination device Schematic diagram for explaining the lighting device The figure which shows the illumination position management table for demonstrating the illumination device Schematic diagram for explaining the lighting device The figure which shows the detection position management table for demonstrating the illumination device The figure which shows the illumination intensity management table for demonstrating the illumination device Schematic diagram of illumination pattern information for explaining the illumination device The figure which shows the relationship between the position of an illumination part, the position of a person, and an illumination pattern for demonstrating the illumination device Schematic diagram for explaining the lighting device Schematic diagram for explaining the lighting device Schematic diagram for explaining the lighting device The figure which shows an example of the input interface of the lighting device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Illuminating device 81 1st area | region 82 2nd area | region 83 3rd area | region 101 Illumination part 102 Position detection part 103 Movement state judgment part 104 Control part 105 Illumination pattern storage part 106 Illumination pattern reception part 141 Color specification menu 142 Specification menu 143 Pattern specification Menu 1000 Computer 1021 Human sensor

Claims (10)

Multiple lighting units that can be dimmed individually;
A position detection unit for detecting the position of a human,
A movement state determination unit for determining a movement state of a human;
According to the detection result of the position detection unit, the plurality of illumination units are controlled so that the illumination near the human position is different from the other areas, and the illumination near the human position is the moving state determination unit. A lighting device comprising: a control unit that controls the plurality of lighting units so as to provide lighting according to the movement state determined by. The control unit controls the plurality of illumination units according to the detection result of the position detection unit so that the illuminance in the vicinity of the human position is higher than that in other regions, and the illuminance in the vicinity of the human position. The lighting device according to claim 1, wherein the plurality of lighting units are controlled such that the illuminance is in accordance with the movement state determined by the movement state determination unit. The lighting device according to claim 2, wherein the control unit controls the plurality of lighting units such that illuminance in the vicinity of the position of the person is lowered according to the distance from the person. The movement state determination unit determines a state where a person is moving and a state where the person is stopped,
The lighting device according to claim 3, wherein the control unit controls the plurality of lighting units such that illuminance in a state where the person is moving is lower than that in a state where the person is stopped. The one or more illumination units are installed in a predetermined room,
The movement state determination unit further determines a state in which a human has entered the room,
The lighting device according to claim 4, wherein the control unit controls the plurality of lighting units such that an illuminance in a state where a person enters the room is lower than an illuminance in a state where the person is moving. The plurality of illumination units includes an illumination pattern storage unit that can store illumination pattern information that is information for designating an illumination pattern when illuminating the vicinity of the position where the human exists.
The lighting device according to claim 1, wherein the control unit controls the plurality of lighting units according to lighting pattern information stored in the lighting pattern storage unit. The lighting device according to claim 6, further comprising a lighting pattern receiving unit that receives the lighting pattern information and accumulates the received lighting pattern information in the lighting pattern storage unit. An instruction to change the illumination pattern information stored in the illumination pattern storage unit is received, and the illumination pattern information stored in the illumination pattern storage unit is changed according to the instruction to change the received illumination pattern information. The illumination device according to claim 6, further comprising the illumination pattern receiving unit to be changed. A position detection step for detecting a human position;
A moving state determining step for determining a moving state of a human;
In accordance with the detection result of the position detection step, a plurality of individually controllable illumination units are controlled so that the illumination near the human position is different from the other areas, and the illumination near the human position is An illumination control method comprising: a control step of controlling the plurality of illumination units so as to achieve illumination according to the movement state determined in the movement state determination step. On the computer,
A position detection step for detecting a human position;
A moving state determining step for determining a moving state of a human;
In accordance with the detection result of the position detection step, a plurality of individually controllable illumination units are controlled so that the illumination near the human position is different from the other areas, and the illumination near the human position is A program for executing a control step for controlling the plurality of illumination units so as to achieve illumination according to the movement state determined in the movement state determination step.

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