Light emission control system

Abstract

To provide a light emission control system capable of determining a position of an approaching object by detecting the position of the approaching object and moving a lightning position of a light along with movement of the approaching object on the basis of detection position information on the approaching object.SOLUTION: A crime prevention lamp 100 as a light emission control system comprises: a light emission long body 10 on which a plurality of lights 14 are disposed along a longitudinal direction; an approaching object detection unit 20 for detecting a position in the longitudinal direction of the light emission long body 10 of the approaching object approaching to the light emission long body 10; and a control unit 30 for performing switching control between a lighting state and a lighting-off state of the lights 14 on the basis of detection position information on the approaching object detected by the approaching object detection unit 20. The approaching object detection unit 20 detects the positions of the approaching object at a previously set time interval. The control unit 30 turns on the lights 14 in a previously set length range on the basis of the detection position information as a reference position.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a light emission control system, and more particularly to a light emission control system that detects the position of an approaching object and controls switching between a light on state and a light off state according to the detected position of the approaching object. [Background technology]

[0002] A known security device that activates a security light or a security bell when it detects the approach of a suspicious person is configured as disclosed in Patent Document 1 (Utility Model Registration No. 3209919). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3209919 (Claim 1, Figure 2, etc.) Summary of the Invention [Problem to be solved by the invention]

[0004] The security device disclosed in Patent Document 1 turns on the security light only in the area where the security device is installed, so if a suspicious person leaves the area where the security device is installed when the security device is activated, it becomes difficult to detect the presence of the suspicious person from the outside, and there is a problem that improvement is desired. [Means for solving the problem]

[0005] The present invention is therefore intended to solve the above problems, and has the following objectives: To provide a light emission control system that can identify the position of an approaching object, such as a suspicious person or a user, by detecting the position of an approaching object and moving the illuminated portion of the light in accordance with the movement of the approaching object based on the detected position information of the approaching object.

[0006] As a result of intensive research by the inventors to solve the above problems, the inventors have come up with the following configuration: That is, the present invention is a light emission control system comprising: a long luminous body having a plurality of lights arranged along its length; an approaching object detection unit that detects the position in the length direction of the long luminous body of an approaching object approaching the long luminous body; and a control unit that controls switching between an on state and an off state of each of the lights based on detected position information of the approaching object detected by the approaching object detection unit, wherein the approaching object detection unit detects the position of the approaching object at preset time intervals, and the control unit turns on each of the lights within a preset length range using each of the detected position information as a reference position.

[0007] This allows the position of approaching objects, such as suspicious individuals or users, to be detected, and the illuminated area of ​​the light can be moved in accordance with the movement of the approaching object based on the detected position information of the approaching object, thereby allowing the user to easily identify the position of the approaching object.

[0008] It is also preferable that the device further comprises a speaker whose operation is controlled by the control unit and which emits a preset notification sound when each of the lights is in the lighting state.

[0009] This allows the user to be made aware of the approach of an approaching object not only by light but also by sound.

[0010] It is also preferable that the approaching object detection unit is disposed integrally with the elongated light-emitting body.

[0011] This makes it possible to easily install the light emission control system.

[0012] It is also preferable that the elongated light-emitting body is provided with a light diffusion member for diffusing light emitted from each of the lights.

[0013] This allows a wide area to be illuminated even with a small amount of light.

[0014] It is also preferable that the control unit further comprises a controller capable of changing the control conditions of the control unit.

[0015] This enhances the visual effect when the light is on, and also allows customization according to the user's preferences and purpose of use.

[0016] There is also an invention for a light emission control system comprising: a plurality of walls erected in a predetermined flat area and equipped with lights; an approaching object detection unit that detects the position within the flat area of ​​an approaching object approaching within the range of the flat area from outside the flat area; and a control unit that sets each of the walls closest to the approaching object as a target wall to be lit based on detected position information of the approaching object detected by the approaching object detection unit, and controls switching of the lights on the target wall between a lit state and an unlit state, wherein the approaching object detection unit detects the position of the approaching object at predetermined time intervals, and the control unit gradually shortens the time interval for switching between the lit state and the unlit state of the lights on the target wall depending on the distance between the approaching object and the target wall.

[0017] This allows the wall to detect the position of an approaching object, such as a car driven by the user, and turn on the lights based on the detected position information of the approaching object, and by changing the interval at which the lights switch between on and off, it is possible to make it easier for the user to recognize the position and approach state of the approaching object.

[0018] It is also preferable that the lighting device further includes a speaker whose operation is controlled by the control unit and which emits a notification sound that is preset according to the distance between the approaching object and the wall to be lit.

[0019] This reduces the risk of an approaching object, such as a car driven by the user, hitting a wall.

[0020] It is preferable that each of the walls is provided with a light diffusing member that diffuses light emitted from the light.

[0021] This allows a wide area to be illuminated even with a small amount of light.

[0022] It is preferable that the device further comprises a controller capable of changing the control conditions of the control unit.

[0023] This enhances the visual effect when the light is on, and also allows customization according to the user's preferences and purpose of use. [Effects of the Invention]

[0024] According to the configuration of the present invention, the position of an approaching object, such as a suspicious person or a user, is detected, and the illuminated portion of the light is moved in accordance with the movement of the approaching object based on the detected position information of the approaching object, thereby allowing the user to easily identify the position of the approaching object. Also, by detecting the position of an approaching object, such as a car driven by the user, and changing the wall that turns on the light based on the detected position information of the approaching object and the interval at which the light is switched on and off, the user can easily recognize the position and approach state of the approaching object. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic diagram illustrating a configuration in which a light emission control system according to the present invention is applied to a security light. [Figure 2] FIG. 2 is a perspective view showing an example of a state in which the security light shown in FIG. 1 is used. [Figure 3] FIG. 10 is a perspective view of a security light illustrating an example of a state in which the distance between an approaching individual and the light source is within a distance threshold. [Figure 4] FIG. 10 is a perspective view of a security light illustrating an example of a state in which the distance between an approaching individual and the light source is within a distance threshold. [Figure 5] FIG. 10 is a perspective view of a security light showing a state in which the distance between the approaching individual and the light source is outside the distance threshold. [Figure 6] 1 is a schematic configuration diagram of a light emission control system according to the present invention applied to a parking assistance system; [Figure 7]FIG. 1 is a plan view showing an example of a usage state of a parking assistance system according to an embodiment of the present invention. [Figure 8] FIG. 1 is a plan view showing an example of a usage state of a parking assistance system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] (First embodiment) An embodiment in which the light emission control system according to the present invention is applied to a security light 100 will be described below with reference to the drawings. Fig. 1 is a schematic diagram of the security light 100 in this embodiment. The security light 100 shown in Fig. 1 includes a light-emitting elongated body 10, an approaching object detection unit 20, a control unit 30, a speaker 40, a power supply unit 50, and a controller 60.

[0027] The elongated light-emitting body 10 includes a main body 12 formed as an elongated body, a plurality of lights 14 arranged at equal intervals along the length of the main body 12, and a cover 16 covering at least the light-emitting surface of the lights 14. The cover 16 protects the light-emitting surface of the lights 14 and improves waterproofing of the electrical wiring (not shown). While the cover 16 is made of a transparent material here, it is also possible to form the cover 16 from a translucent material or to roughen the surface of the cover 16 to diffuse the light from the lights 14. This allows the light emitted from the multiple lights 14 to be perceived as a single light when they are turned on. While a tube-type LED light can be used as the elongated light-emitting body 10, the form is not limited to this.

[0028] The approaching object detection unit 20 is attached to one end of the elongated light-emitting body 10 in the longitudinal direction, and scans the position of an approaching object in the longitudinal direction of the elongated light-emitting body 10 and the presence or absence of an approaching person 200 as an approaching object in a direction horizontal to the longitudinal direction of the elongated light-emitting body 10. In this embodiment, an ultrasonic sensor is used as the approaching object detection unit 20, but the approaching object detection unit 20 is not limited to an ultrasonic sensor. The approaching object detection unit 20 scans the elongated light-emitting body 10 for the presence or absence of an approaching person 200, at preset time intervals, and the scan information is transmitted to the control unit 30 via wireless communication or wired communication.

[0029] The control unit 30 is disposed in the elongated light-emitting body 10 and is electrically connected to the light 14 and the approaching object detection unit 20 via wiring. The control unit 30 in this embodiment has a storage unit 32, represented by a non-volatile memory in which an operation control program is stored, and a calculation unit 34, represented by a CPU, which switches the light 14 between on and off and controls the output of notification sounds from the speaker 40 based on the operation control program. The storage unit 32 variably stores a plurality of control parameters referenced by the operation control program. The calculation unit 34 calculates the position of the approaching individual 200 in the longitudinal direction of the elongated light-emitting body 10 (the distance from the approaching object detection unit 20 in the longitudinal direction of the elongated light-emitting body 10) and the distance of the approaching object horizontally relative to the elongated light-emitting body 10, based on the scan information transmitted by the approaching object detection unit 20.

[0030] The speaker 40 is disposed in the elongated light-emitting body 10, and a known configuration can be adopted, so detailed description thereof will be omitted here. The frequency, volume, and on / off interval of the notification sound output by the speaker 40 are controlled by the control unit 30. Note that the speaker 40 may be omitted.

[0031] The power supply unit 50 can be a known configuration such as a battery provided in the elongated light-emitting body 10, an electric plug connectable to a commercial power source, and an AC to DC converter, and so a detailed description thereof will be omitted here.

[0032] The controller 60 can communicate with the control unit 30 via wireless communication and is used to change the control parameters (control conditions) stored in the storage unit 32. Examples of such a controller 60 include a smartphone on which an application for operating the light-emitting control system is installed, and a voice interface called a VPA (Virtual Personal Assistance), such as Alexa (registered trademark), Google Assistant (registered trademark), Cortana (registered trademark), or Siri (registered trademark), which is linked to the control unit 30. The control parameters include the use mode of the luminous elongated body 10 and detailed operating conditions for each use mode. The user can change the detailed operating conditions to any numerical value within a preset numerical range by operating the controller 60 (application for operating the light-emitting control system).

[0033] The configuration of the security light 100 in this embodiment is as described above. Next, an example of how to use the security light 100 will be described with reference to FIGS. 2 to 5, which show an example of how to use the security light 100 in this embodiment. As shown in FIG. 2, the security light 100 in this embodiment is attached at a required height on an exterior wall 210 of a building, such as a residence, by a known method. It is also assumed that the security light mode has been selected in advance by the user operating the controller 60. When the security light mode is set, all of the lights 14 are initially turned on. Alternatively, a brightness sensor (not shown) may be provided, and when no approaching object is detected according to the brightness detection value from the brightness sensor (the brightness of the location where the security light 100 is installed), the initial state may be a state in which the control unit 30 turns on or off all of the lights 14.

[0034] The approaching object detection unit 20 scans for the presence or absence of an approaching person 200 as an approaching object to the light emitting elongated body 10 at a measurement time interval (here, 0.2 second intervals, but not limited to this measurement time interval) set by the control parameters stored in the memory unit 32. Scan information is constantly transmitted to the control unit 30. The calculation unit 34 of the control unit 30 calculates, based on the received scan information, the detected position information of the approaching person 200 in the length direction of the light emitting elongated body 10 and the separation distance in the horizontal direction of the light emitting elongated body 10. If the calculated separation distance in the horizontal direction of the approaching person 200 is equal to or less than the separation distance threshold set by the control parameters, the calculation unit 34 executes a process of turning on the lights 14 within the length range set by the control parameters based on the calculated detection position information, as shown in FIG. 3 .

[0035] In this embodiment, the detection position information of the approaching individual 200 calculated by the calculation unit 34 is set as a first end (reference position) in the longitudinal direction of the light emitting elongated body 10, and a plurality of lights 14 are turned on within a range of 20 cm, which is a preset length range from the first end toward the approaching object detection unit 20. Furthermore, when the calculated horizontal distance between the approaching individual 200 and the light emitting elongated body 10 is equal to or less than the distance threshold set by the control parameters, the calculation unit 34 executes processing to output a notification sound set by the control parameters from the speaker 40.

[0036] The calculation unit 34 calculates the detected position information of the approaching individual 200 in the length direction of the luminous elongated body 10 and the horizontal distance from the luminous elongated body 10 at 0.2-second intervals, so that the illumination range of the lights 14 follows the movement of the approaching individual 200, as shown in Figures 3 and 4. In this way, the illumination range of the lights 14 follows the movement of the approaching individual 200, and the notification sound from the speaker 40 makes it possible to objectively identify who (or what) the approaching individual 200 is, which is advantageous from a security standpoint. Note that, as the approaching individual 200 moves, if the detected position information of the approaching individual 200 in the length direction of the luminous elongated body 10 calculated by the calculation unit 34 based on the scan information and the horizontal distance from the luminous elongated body 10 exceeds the distance threshold, the control unit 30 turns all of the lights 14 on (or off) and stops the notification sound, as shown in Figure 5.

[0037] (Second embodiment) An embodiment in which the light emission control system according to the present invention is applied to a parking assistance system 300 will be described below with reference to the drawings. Fig. 6 is a schematic configuration diagram of the parking assistance system 300 in this embodiment. The parking assistance system 300 shown in Fig. 6 includes a wall 310, a second approaching object detection unit 320, a second control unit 330, a second speaker 340, a second power supply unit 350, and a second controller 360.

[0038] The wall 310 is erected in a U-shaped arrangement in a plan view along the outer periphery of the planar area of ​​the parking lot. A plurality of second lights 314 are arranged vertically and horizontally in a matrix inside the wall 310. Although not shown, a second light diffusing member may be provided to cover the light-emitting surface of the second lights 314, so that light from the second lights 314 is irradiated from the entire inner surface of the wall 310. Such a wall 310 can also be used as a privacy wall for the parking lot.

[0039] The second approaching object detection unit 320 is disposed on a hanging member 400 that is hung between the upper ends of any two opposing walls 310, and is capable of scanning the entire flat area of ​​the parking lot. The second approaching object detection unit 320 scans the position of an automobile 500, which is an approaching object, at a measurement time interval (here, 0.2 seconds, but not limited to this measurement time interval) set by a control parameter stored in the second storage unit 332. The second approaching object detection unit 320 constantly transmits scan information to the second control unit 330 using a known method.

[0040] The second control unit 330 is disposed on one of the multiple walls 310, and is electrically connected by wiring to the second approaching object detection unit 320 and the second lights 314 on all of the walls 310. As in the first embodiment, the second control unit 330 in this embodiment has a second storage unit 332 represented by a nonvolatile memory in which an operation control program is stored, and a second calculation unit 334 represented by a CPU that switches between the on and off states of the second light 314 and controls the output of a notification sound from the second speaker 340 based on the operation control program. The second storage unit 332 variably stores multiple control parameters referenced by the operation control program.

[0041] The second calculation unit 334 calculates the two-dimensional coordinate position (X-direction coordinates and Y-direction coordinates in FIG. 6 ) of the approaching object in the planar area of ​​the parking lot of the automobile 500, based on the scan information of the automobile 500 transmitted by the second approaching object detection unit 320. Next, the second calculation unit 334 identifies the wall 310 closest to the automobile 500 as the target wall 311 to be illuminated, based on the calculated two-dimensional coordinates of the approaching object, and executes control to turn on the second light 314 arranged on the target wall 311 to be illuminated under conditions set by the control parameters. The second calculation unit 334 also executes processing to output a predetermined notification sound from the second speaker 340, based on the horizontal distance from the automobile 500 to the target wall 311 to be illuminated and the notification sound threshold set in advance by the control parameters. Specifically, as the horizontal distance from the automobile 500 to the target wall 311 to be illuminated becomes shorter, the time interval (flashing interval) for switching between the on and off states of the second light 314 becomes shorter, the frequency and volume of the notification sound output from the second speaker 340 become higher, and the output interval of the notification sound becomes shorter.

[0042] The second speaker 340 in this embodiment can be disposed at any position in the planar area to be managed, such as on each wall 310. Since a known configuration can be employed for such second speaker 340, detailed description thereof will be omitted here. The frequency, volume, and on / off interval of the notification sound output by the second speaker 340 are controlled by the second control unit 330. Note that the second speaker 340 may be omitted.

[0043] The second power supply unit 350 can be a battery arranged at any position on the wall 310 or the planar area to be managed, or a known configuration such as an electrical plug that can be connected to a commercial power source, and therefore detailed explanations are omitted here.

[0044] As in the first embodiment, the second controller 360 can communicate with the second control unit 330 via wireless communication and is used to change the control parameters stored in the second storage unit 332. An example of such a second controller 360 is a smartphone on which an application for operating the light-emitting control system is installed. The control parameters include the use modes of the wall 310 and detailed operating conditions for each use mode. The user can change the detailed operating conditions to any numerical value within a preset numerical range by operating the second controller 360 (application for operating the light-emitting control system).

[0045] The configuration of the parking assistance system 300 in this embodiment is as described above. Next, an example of how to use the parking assistance system 300 will be described with reference to FIGS. 7 and 8, which show an example of how to use the parking assistance system 300 in this embodiment. Note that the second control unit 330, second power supply unit 350, and second controller 360 are not shown in FIGS. 7 and 8. The parking assistance system 300 in this embodiment is disposed in a planar area to be managed, such as a parking lot. It is also assumed that the parking assistance mode has been selected in advance by the user operating the second controller 360.

[0046] When the automobile 500 enters the parking lot, the approach of the automobile 500 is reflected in the scan information of the second approaching object detection unit 320. The second calculation unit 334 determines the position of the planar contour of the automobile 500 that has entered the parking lot using the X and Y coordinates (see FIG. 6 ) based on the scan information. Simultaneously with this, or around the same time, the second calculation unit 334 determines the wall 310 that is closest to the calculated position of the planar contour of the automobile 500 as the illumination target wall 311. Simultaneously with this, or around the same time, the second calculation unit 334 turns on the second light 314 of the illumination target wall 311 when the position of the planar contour of the automobile 500 relative to the illumination target wall 311 becomes equal to or less than a first illumination threshold preset by a control parameter. Furthermore, the second calculation unit 334 outputs a notification sound from the second speaker 340 when the position of the planar contour of the automobile 500 relative to the illumination target wall 311 becomes equal to or less than a first notification sound threshold preset by a control parameter. The user can recognize from the light and sound that the position of the automobile 500 is approaching the lighting target wall 311, and can adjust the traveling direction of the automobile 500.

[0047] Furthermore, when the position of the planar outline of the automobile 500 falls below a preset second lighting threshold relative to the target wall 311, the second calculation unit 334 shortens the blinking interval of the second light 314 of the target wall 311 compared to the blinking interval of the second light 314 corresponding to the first lighting threshold. At the same time as, or around this time, when the position of the planar outline of the automobile 500 falls below a second notification sound threshold relative to the target wall 311, the second calculation unit 334 raises the pitch of the notification sound output from the second speaker 340 to a higher pitch than the notification sound corresponding to the first notification sound threshold, increases the volume, and shortens the output interval of the notification sound compared to the output interval of the notification sound at the first notification sound threshold. This further increases the user's attention. Then, when automobile 500 approaches a predetermined stopping position, second calculation unit 334 causes second light 314 on parking position wall 312 facing the front or rear of automobile 500 to flash to urge the driver to stop, or causes second light 314 to light up at a higher output than the lighting output of second light 314 corresponding to the second notification sound threshold. Simultaneously with this, or around the same time, second calculation unit 334 causes second speaker 340 to output a notification sound (a continuous sound that is higher in volume and that is louder than the notification sound corresponding to the second notification sound threshold) urging the driver to stop.

[0048] In this way, according to the parking assistance system 300 of this embodiment, for users who are not good at parking, the second light 314 and the second speaker 340 arranged on the wall 310 can provide parking assistance with light and notification sounds.

[0049] The above describes in detail the security light 100 and the parking assistance system 300 to which the light-emission control system according to the present invention is applied. However, the present invention is not limited to the above embodiments. For example, in the first embodiment, the light-emission control system is used as the security light 100, but it can also be used as an emergency exit light. To use it as an emergency exit light, the user simply selects emergency exit light mode in the usage mode using the controller 60. When emergency exit light mode is selected, the output of the notification sound from the speaker 40 is stopped, and the control unit 30 turns on the lights 14 within a required range based on the detected position information of the approaching individual 200, and controls the illuminated portions of the lights 14 to follow the movement of the approaching individual 200. This allows the light from the lights 14 to illuminate the area around the approaching individual 200's feet and the area ahead in the direction of travel if the approaching individual 200 is a resident or guest, which is advantageous in that it ensures safety at their feet and guides them to the entrance.

[0050] Furthermore, in the first embodiment, the detection position information calculated by the calculation unit 34 is set to the first end in the longitudinal direction of the elongated light-emitting body 10, and a plurality of lights 14 are turned on within a 20 cm-wide range from the first end toward the approaching object detection unit 20, but this is not limited to this embodiment. The detection position information calculated by the calculation unit 34 can also be set to the center position in the longitudinal direction of the elongated light-emitting body 10, and lights 14 can be turned on within a predetermined length range from this center position toward both ends in the longitudinal direction of the elongated light-emitting body 10. Furthermore, the length ranges of the lights 14 that emit light from the center position toward both ends in the longitudinal direction of the elongated light-emitting body 10 can also be made different.

[0051] Furthermore, although the security light 100 in the first embodiment has a cover 16 provided on the elongated light-emitting body 10, the cover 16 may be omitted. In the first embodiment, the longitudinal position of the elongated light-emitting body 10 and the horizontal distance from the elongated light-emitting body 10 are calculated based on the scan information from the approaching object detection unit 20, but the present invention is not limited to this configuration. A configuration in which an auxiliary approaching object detection unit (not shown), which is a sensor separate from the approaching object detection unit 20, is provided may also be adopted. When this configuration is adopted, the calculation unit 34 calculates the horizontal distance from the elongated light-emitting body 10 in the horizontal direction based on the auxiliary scan information from the auxiliary approaching object detection unit, and determines whether the calculated horizontal distance is equal to or less than a horizontal distance threshold value pre-stored in the memory unit 32. If the calculated horizontal distance is less than the horizontal distance threshold value, the calculation unit 34 determines that it is an approaching object, and only in this case can the position of the approaching object in the longitudinal direction of the light-emitting elongated body 10 be calculated from the scan information of the approaching object detection unit 20, thereby significantly reducing the calculation load on the calculation unit 34.

[0052] Furthermore, in the parking assistance system 300 of the second embodiment, the second approaching object detection unit 320 calculates the position of the planar contour of the automobile 500 as an approaching object in X and Y coordinates based on the scan information, but the position information of the approaching object is not limited to the above embodiment. It is also possible to employ a configuration in which the X and Y coordinates of a corner of the approaching object are calculated and the nearest wall 310 is identified based on the calculated X and Y coordinates. This configuration is advantageous in that it makes it easier to calculate the position information of the approaching object and reduces the cost of the second control unit 330.

[0053] Furthermore, the second approaching object detection unit 320 is suspended from a hanging member 400 that is hung across the tops of any opposing walls 310 in the planar area to be managed, but the arrangement of the second approaching object detection unit 320 is not limited to this, and other arrangements may also be adopted. Furthermore, instead of detecting the X and Y coordinates in the planar area to be managed by one second approaching object detection unit 320, it is also possible to adopt an arrangement in which the X and Y coordinates in the planar area to be managed are calculated using multiple second approaching object detection units 320.

[0054] Furthermore, in the second embodiment, all of the second lights 314 arranged on the lighting target wall 311 are turned on, but the present invention is not limited to this. It is also possible to adopt a configuration in which, of the second lights 314 arranged on the lighting target wall 311, one or more second lights 314 are turned on, centered on the part closest to the automobile 500. The number and lighting range of the second lights 314 that are turned on on the lighting target wall 311 to alert the driver of the automobile 500 are variably stored in the control parameters.

[0055] Furthermore, although the second light 314 is illustrated as being built into the wall 310, the present invention is not limited to this configuration. It is also possible to employ a configuration in which a plurality of second lights 314 are arranged on the underside of a ceiling or roof (not shown) arranged in the planar area to be managed (preferably over the entire underside of the ceiling or roof or a required width range along the inner surface of the wall 310). When a plurality of second lights 314 are arranged on the ceiling or roof in this manner, it is possible to cause the plurality of second lights 314 to emit light within a required range corresponding to the planar position coordinates of the automobile 500. Furthermore, the second approaching object detection unit 320 and the second speaker 340 can be arranged on the ceiling or roof.

[0056] Furthermore, in the above embodiment, the approaching person 200 and the automobile 500 are exemplified as approaching objects, but the approaching objects are not limited to the approaching person 200 and the automobile 500.

[0057] In addition to the modifications described above, it is also possible to adopt a form in which the modifications described in the embodiment are appropriately combined. [Explanation of symbols]

[0058] 10: Light-emitting elongated body, 12: Main body, 14: Light, 16: Cover (light diffusion member) 20: Approaching object detection unit 30: control unit, 32: storage unit, 34: calculation unit 40: Speaker 50: Power supply section 60: Controller 100: Security lights (light emission control system) 200: Approaching person (approaching object), 210: Outer wall 300: Parking assistance system (light emission control system) 310: Wall, 311: Lighting target wall, 312: Parking position wall, 314: Second light 320: Second approaching object detection unit 330: Second control unit, 332: Second storage unit, 334: Second calculation unit 340: Second speaker 350:Second power supply section 360: Second controller 400: Hanging member 500: Car (approaching object)

Claims

1. a light-emitting elongated body having a plurality of lights arranged along its length; an approaching object detection unit that detects the position of an approaching object in the longitudinal direction of the light emitting elongated body; a control unit that controls switching between an on state and an off state of each of the lights based on detected position information of the approaching object detected by the approaching object detection unit, the approaching object detection unit detects the position of the approaching object at a preset time interval; The control unit turns on each of the lights within a predetermined length range using each of the detected position information as a reference position.

2. 2. The lighting control system according to claim 1, further comprising a speaker whose operation is controlled by the control unit and which emits a preset notification sound when each of the lights is in the lighting state.

3. 3. The light emission control system according to claim 1, wherein the approaching object detection unit is disposed integrally with the elongated light emitting body.

4. 3. The light emission control system according to claim 1, wherein the elongated light emitting body is provided with a light diffusing member for diffusing light emitted from each of the lights.

5. 3. The light emission control system according to claim 1, further comprising a controller capable of changing the control conditions of said control unit.

6. A plurality of walls erected in a predetermined planar area and having lights arranged thereon; an approaching object detection unit that detects a position within the planar area of ​​an approaching object that approaches within the planar area from outside the planar area; a control unit that sets the wall closest to the approaching object as a target wall to be illuminated based on detected position information of the approaching object detected by the approaching object detection unit, and controls switching between a lighted state and an unlit state of the light on the target wall, the approaching object detection unit detects the position of the approaching object at a preset time interval; The control unit gradually shortens the switching time interval between the on state and the off state of the light on the target wall depending on the distance between the approaching object and the target wall.

7. The lighting control system according to claim 6, further comprising a speaker whose operation is controlled by the control unit and which emits a notification sound that is preset according to the distance between the approaching object and the wall to be lit.

8. 8. The light emission control system according to claim 6, wherein a light diffusing member for diffusing light emitted from the light is disposed on each of the walls.

9. 8. The light emission control system according to claim 6, further comprising a controller capable of changing the control conditions of said control section.

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