JP2017199525A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire capable of suppressing occurrence of crimes such as snatching.SOLUTION: A luminaire 10 includes a lamp 11 configured to illuminate a road 20, a sensor unit 12 configured to detect each speed of a plurality of objects on the road 20, and a notification unit 13 configured to give a notification to at least one of the plurality of objects. Also, the luminaire 10 includes a control unit 14 that on the basis of a detection result of the sensor unit 12, when it is determined that an approach speed, which is a relative speed in a case of contracting a distance between the plurality of objects, is faster than a predetermined speed, causes the notification unit 13 to give a notification.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting device for crime prevention use.

  Conventionally, lighting devices for crime prevention use are known. For example, Patent Document 1 discloses a security light that can cope with the occurrence of an emergency in an unspecified location.

JP 2013-200866 A

  By the way, a crime called snatching is known. The snatching is a theft act in which a person who rides a vehicle such as a motorbike approaches a pedestrian from behind and takes away the pedestrian's belongings when overtaking. Currently, there are insufficient measures to prevent snatching.

  The present invention provides an illumination device that can suppress the occurrence of crimes such as snatching.

  An illumination device according to an aspect of the present invention includes a lamp that illuminates a road, a sensor unit that detects the speed of each of a plurality of objects on the road, and a notification that notifies at least one of the plurality of objects. And when the approach speed, which is a relative speed when the distance between the plurality of objects is reduced, is determined to be higher than a predetermined speed based on the detection result of the sensor section and the sensor section, the notification section is notified. And a control unit.

  According to the lighting device of the present invention, it is possible to suppress the occurrence of crimes such as snatching.

FIG. 1 is a first diagram for explaining the outline of the operation of the lighting apparatus according to the embodiment. FIG. 2 is a second diagram for explaining the outline of the operation of the lighting apparatus according to the embodiment. FIG. 3 is an external view of the illumination device according to the embodiment. FIG. 4 is a block diagram illustrating a functional configuration of the illumination device according to the embodiment. FIG. 5 is a flowchart of the operation example 1 of the lighting apparatus according to the embodiment. FIG. 6 is a flowchart of an operation example 2 of the lighting apparatus according to the embodiment. FIG. 7 is a flowchart of Operation Example 3 of the lighting apparatus according to the embodiment. FIG. 8 is a flowchart of the operation example 4 of the lighting apparatus according to the embodiment. FIG. 9 is an external view of a lighting device having a different notification mode. FIG. 10 is an external view of another illumination device having a different notification mode.

  Hereinafter, embodiments will be described with reference to the drawings. It should be noted that each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, and the overlapping description may be abbreviate | omitted or simplified.

(Embodiment)
[Overview]
First, the outline | summary of operation | movement of the illuminating device which concerns on embodiment is demonstrated. FIG.1 and FIG.2 is a figure for demonstrating the outline | summary of operation | movement of the illuminating device based on Embodiment.

  The lighting device 10 according to the embodiment is attached to a columnar member such as a utility pole 30 erected along a road 20 such as a living road, and illuminates the surroundings. The lighting device 10 is used as a security light.

  Here, as shown in FIG. 1, the lighting device 10 detects when a two-wheeled vehicle 50 such as a bicycle or a motorcycle approaches from behind the pedestrian 40. Then, as illustrated in FIG. 2, the lighting device 10 emits flash light, for example. Thereby, the illuminating device 10 can call attention to the pedestrian 40, and the pedestrian 40 can notice that the two-wheeled vehicle 50 is approaching. In addition, the lighting device 10 can make the driver of the two-wheeled vehicle 50 refrain from snatching by surprise the driver of the two-wheeled vehicle 50.

  Specifically, the lighting device 10 emits flash light based on a speed difference between the pedestrian 40 and the two-wheeled vehicle 50. In other words, the speed difference is a relative speed when the distance between the pedestrian 40 and the two-wheeled vehicle 50 is reduced. In the following embodiment, such a relative speed is referred to as an approach speed.

[Constitution]
Next, a detailed configuration of the illumination device 10 will be described. FIG. 3 is an external view of the illumination device 10. FIG. 4 is a block diagram illustrating a functional configuration of the lighting device 10.

  As shown in FIGS. 3 and 4, the lighting device 10 includes a lamp 11, a sensor unit 12, a notification unit 13, a control unit 14, a storage unit 15, a housing 16, and an attachment member 17. Prepare.

  The lamp 11 illuminates the periphery of the lighting device 10. The lamp 11 illuminates the road 20 by emitting white light using, for example, an LED (Light Emitting Diode) as a light source.

  In addition, the light source of the lamp 11 is not limited to LED. As a light source of the lamp 11, a fluorescent tube, a metal halide lamp, a sodium lamp, a halogen lamp, a xenon lamp, a neon tube, or the like may be used. Further, as the light source of the lamp 11, inorganic electroluminescence, organic electroluminescence, chemiluminescence (chemiluminescence), a semiconductor laser, or the like may be used.

  The sensor unit 12 detects the speed of each of a plurality of objects on the road 20. The plurality of objects are, for example, a pedestrian 40 and a two-wheeled vehicle 50.

  Specifically, the sensor unit 12 includes a Doppler sensor, and measures (detects) the distance from the sensor unit 12 to each of a plurality of objects on the road 20 in a non-contact manner using the Doppler sensor (microwave). Can do. The sensor unit 12 calculates the speed of each of the plurality of objects based on the temporal change in the measured distance. That is, the sensor unit 12 can detect the speed of each of the plurality of objects in a non-contact manner. The sensor unit 12 may include a plurality of Doppler sensors in order to measure the distance to each of the plurality of objects.

  The sensor unit 12 includes, in addition to the Doppler sensor, a processor or a microcomputer that performs an operation for calculating a speed. Note that the calculation for calculating the speed may be performed by the control unit 14. That is, part of the processing performed by the sensor unit 12 may be performed by the control unit 14.

  In addition, the sensor part 12 is not limited to the structure which has a Doppler sensor. The sensor unit 12 may be an ultrasonic distance sensor, an infrared distance sensor, an optical distance sensor, a distance image sensor (TOF: Time Of Flight), or the like instead of the Doppler sensor. Moreover, the sensor part 12 may be comprised by the combination of two or more sensors among these some sensors.

  The sensor unit 12 includes an imaging device such as a camera in place of the various sensors described above, and performs image processing such as object detection on a moving image captured by the imaging device, thereby speeding each of a plurality of objects. May be detected.

  The notification unit 13 notifies at least one of the plurality of objects. That is, the alerting | reporting part 13 alert | reports both of a some object, or any one. The alerting | reporting part 13 performs alerting | reporting for encouraging alertness with respect to the pedestrian 40, for example. Moreover, the alerting | reporting part 13 performs alerting | reporting for the driver | operator of the two-wheeled vehicle 50 which is going to snatch, for the said driver | operator to be surprised.

  The alerting | reporting part 13 alert | reports by emitting flash light (it emits light instantaneously), for example. Specifically, the notification unit 13 includes a strobe light source such as a xenon flash light source, and emits flash light one or more times. That is, the notification unit 13 blinks the light source. The light color of the flash light is, for example, white, but may be a primary color such as red, and is not particularly limited. Moreover, the kind of light source used for the alerting | reporting part 13 is not specifically limited like the lamp 11, either.

  The control unit 14 is a control device that performs various controls related to the lighting device 10. For example, the control unit 14 controls lighting and extinguishing of the lamp 11. Specifically, based on the detection result of the illuminance sensor (not shown in FIGS. 3 and 4), the control unit 14 turns on the lamp 11 when the surroundings of the lighting device 10 become dark. Moreover, the control part 14 may light the lamp 11 on time based on the time measured by a timer circuit (not shown in FIGS. 3 and 4). Note that the lamp 11 may operate independently of the control unit 14.

  Further, the control unit 14 notifies the notification unit 13 when it is determined that the approach speed, which is a relative speed when the distance between the plurality of objects is reduced, is faster than a predetermined speed based on the detection result of the sensor unit 12. To do. Specifically, the control unit 14 causes the notification unit 13 to flash. Thereby, the control unit 14 can prompt the pedestrian 40 to be alert. Moreover, the control part 14 can refrain from a crime by surprise the driver | operator of the two-wheeled vehicle 50 which is going to snatch.

  The control unit 14 may use the lamp 11 instead of the notification unit 13. That is, the control unit 14 may blink the lamp 11 for notification. However, if a notification unit 13 different from the lamp 11 is used, the control unit 14 can perform notification by light while maintaining the ambient brightness by the lamp 11.

  Specifically, the control unit 14 is realized by a processor, a microcomputer, a dedicated circuit, or the like. The control unit 14 may be realized by a combination of a processor, a microcomputer, and a dedicated circuit.

  The storage unit 15 is a storage device that stores information indicating the predetermined speed and a control program executed by the control unit 14. Specifically, the storage unit 15 is realized by a semiconductor memory or the like.

  The casing 16 is a casing that is attached to a columnar member such as a utility pole 30 installed along the outdoor road 20 and accommodates the control unit 14. A lamp 11, a sensor unit 12, and a notification unit 13 are attached to the outer surface of the housing 16. The housing 16 may house a part of the lamp 11, the sensor unit 12, and the notification unit 13. The casing 16 is made of, for example, a metal such as aluminum or stainless steel, but may be made of resin.

  The attachment member 17 is a ring-shaped structure for attaching the housing 16 (the lighting device 10) to the utility pole 30. The attachment member 17 is formed of a metal such as aluminum or stainless steel, but may be formed of resin.

[Operation Example 1]
Next, an operation example 1 of the illumination device 10 will be described. FIG. 5 is a flowchart of the operation example 1 of the lighting device 10. The operation described as the operation example 1 may be performed while the lamp 11 is turned on (nighttime) or may be performed while the lamp 11 is turned off (daytime).

  First, the sensor unit 12 detects the speeds of a plurality of objects on the road 20 (S11). Based on the detection result of the sensor unit 12, the control unit 14 determines whether or not an approach speed, which is a relative speed when the distance between the plurality of objects is reduced, is faster than a predetermined speed (S12). Specifically, the control unit 14 calculates a difference between the speeds of a plurality of objects as an approach speed, and compares the calculated speed with a predetermined speed stored in the storage unit 15.

  Generally, a human walking speed is about 2 km / h or more and 5 km / h or less, and a speed of a bicycle or a motorcycle is, for example, 20 km / h or more. Therefore, the predetermined speed is set to 15 km / h, for example.

  When it is determined that the approach speed is faster than the predetermined speed (Yes in S12), the control unit 14 causes the notification unit 13 to perform notification (S13). Specifically, the control unit 14 causes the notification unit 13 to flash. On the other hand, when the control unit 14 determines that the approach speed is equal to or lower than the predetermined speed (No in S12), the control unit 14 ends the operation without notifying the notification unit 13.

  When it is determined that the approach speed is equal to or lower than the predetermined speed, the case where the distance between a plurality of objects is increased is also included. That is, the control unit 14 ends the operation without notifying the notification unit 13 even when it is determined that the distance between the plurality of objects is going away based on the detection result of the sensor unit 12.

  Thus, the control part 14 makes the alerting | reporting part 13 perform alerting | reporting, when it judges that approach speed is more than predetermined speed. Thereby, the lighting device 10 can prompt the pedestrian 40 to be alert when the two-wheeled vehicle 50 is approaching the pedestrian 40. Moreover, the illuminating device 10 can refrain from a crime by surprise the driver | operator of the two-wheeled vehicle 50 which is going to snatch. That is, according to the illuminating device 10, the occurrence of crimes such as snatching can be suppressed.

  As a general security measure, it is conceivable to install a security camera. However, it is difficult to prevent crimes such as snatching with a security camera. On the other hand, the lighting device 10 can prevent crimes such as snatching.

  In addition, since the security camera constantly photographs pedestrians, there are problems that residents living in the vicinity feel uncomfortable and privacy infringement. According to the notification by the illumination device 10, such a problem is unlikely to occur. In addition, the lighting device 10 is superior to the security camera in terms of introduction cost and maintenance cost.

[Operation example 2]
Next, an operation example 2 of the illumination device 10 will be described. FIG. 6 is a flowchart of the operation example 2 of the lighting apparatus 10. In the following operation example 2, the description will be focused on differences from the operation example 1, and the description of the matters already described in the operation example 1 will be omitted as appropriate.

  When the distance between a plurality of objects decreases, the case where a plurality of objects approach each other and the case where one of the plurality of objects approaches so as to overtake the other are included. In typical snatching, one of the plurality of objects (two-wheeled vehicle 50) approaches to pass the other (pedestrian 40).

  Therefore, as illustrated in FIG. 6, in the operation example 2, after the determination in step S12, the control unit 14 determines whether one of the plurality of objects is about to pass the other (S21). Note that the determination in step S21 may be performed before the determination in step S12.

  For example, in step S11, the speed at which the sensor unit 12 moves in a predetermined direction along the road 20 is detected as a positive polarity speed, and the speed at which the sensor unit 12 moves in a direction opposite to the predetermined direction is detected as a negative polarity speed. In such a case, when the polarities of the speeds of the plurality of objects coincide with each other and the distance between the plurality of objects decreases with time, one of the plurality of objects tries to overtake the other. It can be judged.

  When the control unit 14 determines that the approaching speed of the plurality of objects is faster than the predetermined speed (Yes in S12) and one of the plurality of objects is trying to pass the other (Yes in S21), a notification is made. The unit 13 is notified (S13). On the other hand, the control unit 14 determines that the approach speed of the plurality of objects is equal to or lower than the predetermined speed (No in S12), and determines that one of the plurality of objects does not attempt to overtake the other ( No in S21), the operation is terminated without notifying the notification unit 13. The case where one of the plurality of objects does not attempt to overtake the other is the case where the polarities of the speeds of the plurality of objects detected by the sensor unit 12 in step S11 do not match.

  As described above, when the control unit 14 determines that one of the plurality of objects is overtaking the other and the approach speed is faster than the predetermined speed based on the detection result of the sensor unit 12. The notification unit 13 may be notified.

  Thereby, the illuminating device 10 can alert | report when the possibility of snatching is high. That is, the illumination device 10 can perform notification efficiently, and is prevented from being notified when the possibility of snatching is low.

[Operation Example 3]
Next, an operation example 3 of the illumination device 10 will be described. FIG. 7 is a flowchart of the operation example 3 of the lighting device 10. In the following operation example 3, the description will be focused on differences from the operation example 1, and the description of the matters already described in the operation example 1 will be omitted as appropriate.

  The notification by the notification unit 13 is effective when at least one of a plurality of objects is located in the vicinity of the illumination device 10. When both of the plurality of objects are separated from the lighting device 10, the flash light emitted from the notification unit 13 is difficult to reach the plurality of objects, and thus the notification by the notification unit 13 is not effective.

  Therefore, as illustrated in FIG. 7, in the operation example 3, after the determination in step S <b> 12, the control unit 14 determines whether at least one of the plurality of objects is located within a predetermined distance from the lighting device 10. A determination is made (S31). Note that the determination in step S31 may be performed before the determination in step S12.

  As described above, the sensor unit 12 measures (detects) the distance from the sensor unit 12 (illumination device 10) to each of a plurality of objects. Therefore, the control unit 14 can determine whether the measured distance is within a predetermined distance. The predetermined distance is, for example, 5 m, but is not particularly limited.

  When the control unit 14 determines that the approach speed of the plurality of objects is faster than the predetermined speed (Yes in S12) and at least one of the plurality of objects is located within a predetermined distance from the lighting device 10. (Yes in S31), the notification unit 13 is notified (S13). On the other hand, when the control unit 14 determines that the approach speed of the plurality of objects is equal to or lower than the predetermined speed (No in S12), both of the plurality of objects are not located within the predetermined distance from the lighting device 10. (No in S31), the notification unit 13 is not notified and the operation is terminated.

  Thus, based on the detection result of the sensor unit 12, the control unit 14 determines that at least one of the plurality of objects is located within a predetermined distance from the illumination device 10 and the approach speed is faster than the predetermined speed. When determined, the notification unit 13 may be notified.

  Thereby, the illuminating device 10 can alert | report when the alerting | reporting by the alerting | reporting part 13 reaches sufficiently at least one of several objects. That is, the illuminating device 10 can perform notification effectively.

[Operation Example 4]
Next, an operation example 4 of the illumination device 10 will be described. FIG. 8 is a flowchart of the operation example 4 of the lighting apparatus 10. In the following operation example 4, the description will be focused on differences from the operation example 1, and the description of the matters already described in the operation example 1 will be omitted as appropriate.

  The notification by the notification unit 13 is effective when at least one of the plurality of objects faces the lighting device 10. When both of the plurality of objects are not facing the lighting device 10, the notification by the notification unit 13 is not effective because the plurality of objects are difficult to notice the flash light emitted by the notification unit 13.

  Therefore, as illustrated in FIG. 8, in the operation example 4, after the determination in step S12, the control unit 14 causes at least one of the plurality of objects to approach the lighting device 10 (toward the lighting device 10). It is determined whether or not it is moving (S41). For example, the control unit 14 can make such a determination using the polarity of the speed described above. Note that the determination in step S41 may be performed before the determination in step S12.

  The control unit 14 determines that the approach speed of the plurality of objects is faster than the predetermined speed (Yes in S12) and that at least one of the plurality of objects is moving so as to approach the illumination device 10 (S41). Yes), the notification unit 13 is notified (S13). On the other hand, when the control unit 14 determines that the approach speed of the plurality of objects is equal to or less than the predetermined speed (No in S12), the control unit 14 determines that both of the plurality of objects are moving away from the lighting device 10. When it does (No in S41), the operation is terminated without notifying the notification unit 13.

  As described above, when the control unit 14 moves so that at least one of the plurality of objects approaches the illumination device 10 based on the detection result of the sensor unit 12, and the approach speed is faster than a predetermined speed. When determined, the notification unit 13 may be notified.

  Thereby, the illuminating device 10 can perform notification when at least one of the plurality of objects is facing the illuminating device 10, that is, when it is easy to notice the notification. Therefore, the illuminating device 10 can notify effectively.

  The determination in step S12, the determination in step S21, the determination in step S31, and the determination in step S41 described in the above embodiment may be arbitrarily combined. That is, the control unit 14 determines whether or not to notify the notification unit 13 by performing one or more of the determination in step S12, the determination in step S21, the determination in step S31, and the determination in step S41. May be.

[Another example of notification]
In the said embodiment, although the alerting | reporting part 13 performed alerting | reporting by emitting flash light, the specific aspect of the alerting | reporting part 13 is not limited to such an aspect. 9 and 10 are external views of lighting devices with different notification modes.

  The illuminating device 10a shown by FIG. 9 is provided with the alerting | reporting part 13a which alert | reports by sound output. The alerting | reporting part 13a alert | reports by outputting a beep sound, the message which calls attention, or music (melody). The notification unit 13a is specifically realized by a speaker or the like.

  The illuminating device 10b shown by FIG. 10 is provided with the alerting | reporting part 13b which alert | reports by projecting an image. For example, the notification unit 13b projects an image onto an area illuminated by the lamp 11 on the road 20, but the image is displayed on a structure that can be used as a screen, such as a signboard or a wall arranged around the illumination device 10b. You may project.

  For example, the notification unit 13b projects an image including a character that prompts attention, but may project an image including an illustration or a photograph that prompts attention. The projected image may be a still image or a moving image. Specifically, the notification unit 13b is realized by a projector (an optical system used for the projector) or the like.

  As mentioned above, the specific aspect of the alerting | reporting part 13 is not specifically limited. Moreover, the illuminating device 10 may be provided with two or more of the alerting | reporting part 13, the alerting | reporting part 13a, and the alerting | reporting part 13b. That is, the illumination device 10 may perform notification by combining light, sound, and an image.

[Summary]
As described above, the lighting device 10 notifies the lamp 11 that illuminates the road 20, the sensor unit 12 that detects the speed of each of the plurality of objects on the road 20, and at least one of the plurality of objects. And a notification unit 13 for performing the operation. Further, the lighting device 10 notifies the notification unit 13 when it is determined that the approach speed, which is a relative speed when the distance between the plurality of objects is reduced, is faster than a predetermined speed based on the detection result of the sensor unit 12. The control part 14 which performs this is provided. The plurality of objects are, for example, a pedestrian 40 and a two-wheeled vehicle 50.

  Thereby, the illuminating device 10 can urge the pedestrian 40 to be alert when the two-wheeled vehicle 50 is approaching the pedestrian 40. Moreover, the illuminating device 10 can refrain from a crime by surprise the driver | operator of the two-wheeled vehicle 50 which is going to snatch. That is, according to the illuminating device 10, the occurrence of crimes such as snatching can be suppressed.

  Moreover, the alerting | reporting part 13 may alert | report by emitting flash light.

  Thereby, the illuminating device 10 can urge the pedestrian 40 to be alert by the flash light. Further, the lighting device 10 can surprise the driver of the two-wheeled vehicle 50 who wants to snatch and refrain from the crime by the flash light.

  Moreover, the alerting | reporting part 13a may alert | report by sound output like the alerting | reporting part 13a with which the illuminating device 10a is provided.

  Thereby, the illuminating device 10a can urge the pedestrian 40 to be alert by the sound output. In addition, the lighting device 10a can surprise the driver of the two-wheeled vehicle 50 who wants to snatch and refrain from the crime by the sound.

  Moreover, the alerting | reporting part 13b may alert | report by projecting an image like the alerting | reporting part 13b with which the illuminating device 10b is provided.

  Thereby, the illuminating device 10b can urge the pedestrian 40 to be alert by the projection of an image. In addition, the lighting device 10b can surprise the driver of the two-wheeled vehicle 50 who wants to snatch and refrain from crime by projecting an image.

  In addition, the notification unit 13b may perform notification by projecting an image on an area illuminated by the lamp 11.

  Thereby, the illuminating device 10b can urge the pedestrian 40 to be vigilant by projecting an image on the area illuminated by the lamp 11. Moreover, the illuminating device 10b can surprise the driver | operator of the two-wheeled vehicle 50 who is going to snatch, and can refrain from a crime by projecting an image on the area | region currently illuminated by the lamp 11. FIG.

  The lighting device 10 further includes a housing 16 that is attached to a power pole 30 installed along the road 20 and accommodates the control unit 14, and the lamp 11, the sensor unit 12, and the notification unit 13 include the housing. 16 may be attached. The utility pole 30 is an example of a columnar member.

  Thereby, the installer of the illuminating device 10 can attach the structural element with which the illuminating device 10 is equipped to a utility pole collectively by attaching the housing | casing 16 to the utility pole 30. FIG.

  Further, when it is determined based on the detection result of the sensor unit 12 that one of the plurality of objects is overtaking the other and the approach speed is faster than the predetermined speed, the control unit 14 13 may be notified.

  Thereby, the illuminating device 10 can alert | report when the possibility of snatching is high. That is, the illumination device 10 can perform notification efficiently, and is prevented from being notified when the possibility of snatching is low.

  The sensor unit 12 may further detect the distance from the lighting device 10 to each of the plurality of objects. When the control unit 14 determines that at least one of the plurality of objects is located within a predetermined distance from the lighting device 10 based on the detection result of the sensor unit 12 and the approach speed is faster than the predetermined speed. The notification unit 13 may be notified.

  Thereby, the illuminating device 10 can alert | report when the alerting | reporting by the alerting | reporting part 13 reaches sufficiently at least one of several objects. That is, the illuminating device 10 can perform notification effectively.

  Further, based on the detection result of the sensor unit 12, the control unit 14 is determined that at least one of the plurality of objects has moved so as to approach the lighting device 10, and that the approach speed is faster than a predetermined speed. In this case, the notification unit 13 may be notified.

  Thereby, the illuminating device 10 can perform notification when at least one of the plurality of objects is facing the illuminating device 10, that is, when it is easy to notice the notification. Therefore, the illuminating device 10 can perform notification effectively.

  Further, the control method of the lighting device 10 is based on the detection result of the sensor unit 12, and when it is determined that the approach speed, which is a relative speed when the distance between the plurality of objects decreases, is faster than a predetermined speed. 13 is informed.

  According to such a control method, the lighting device 10 can prompt the pedestrian 40 to be alert when the two-wheeled vehicle 50 is approaching the pedestrian 40. Moreover, the illuminating device 10 can refrain from a crime by surprise the driver | operator of the two-wheeled vehicle 50 which is going to snatch. That is, according to the illuminating device 10, the occurrence of crimes such as snatching can be suppressed.

(Other embodiments)
Although the embodiment has been described above, the present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, all or part of the components such as the control unit may be configured by dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  In addition, a comprehensive or specific aspect of the present invention may be realized by a system, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM. You may implement | achieve with arbitrary combinations of a program and a recording medium.

  For example, the present invention may be realized as a lighting device control method, a program for causing a computer to execute the lighting device control method, or a control unit (control) according to the above-described embodiment. Device). Moreover, this invention may be implement | achieved as not a lighting apparatus but a crime prevention apparatus (a snatching generation | occurrence | production suppression apparatus) which is not provided with a lamp.

  Moreover, in each said embodiment, another process part may perform the process which a specific process part performs. Further, the order of the plurality of processes may be changed, and the plurality of processes may be executed in parallel.

  In addition, it is realized by variously conceiving various modifications conceived by those skilled in the art for each embodiment, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. This form is also included in the present invention.

DESCRIPTION OF SYMBOLS 10, 10a, 10b Illuminating device 11 Lamp 12 Sensor part 13, 13a, 13b Notification part 14 Control part 16 Case 20 Road 30 Electric pole (columnar member)
40 Pedestrian (object)
50 Two-wheeled vehicle (object)

Claims (10)

A lamp that illuminates the road,
A sensor unit for detecting the speed of each of the plurality of objects on the road;
An informing unit for informing at least one of the plurality of objects;
A control unit that causes the notification unit to perform the notification when it is determined that an approach speed, which is a relative speed when the distance between the plurality of objects decreases, is faster than a predetermined speed based on a detection result of the sensor unit. A lighting device comprising: The notification unit performs the notification by emitting flash light.
The lighting device according to claim 1. The lighting device according to claim 1, wherein the notification unit performs the notification by sound output. The illumination device according to claim 1, wherein the notification unit performs the notification by projecting an image. The illuminating device according to claim 1, wherein the notification unit performs the notification by projecting an image onto an area illuminated by the lamp. Furthermore, it is attached to a columnar member installed along the road, and includes a housing for accommodating the control unit,
The lighting device according to claim 1, wherein the lamp, the sensor unit, and the notification unit are attached to the housing. The control unit, based on the detection result of the sensor unit, when one of the plurality of objects is trying to pass the other, and the approach speed is determined to be faster than the predetermined speed, The lighting device according to claim 1, wherein the notification is performed by a notification unit. The sensor unit further detects a distance from the lighting device to each of the plurality of objects,
The control unit determines that at least one of the plurality of objects is located within a predetermined distance from the lighting device and the approach speed is faster than the predetermined speed based on a detection result of the sensor unit. The lighting device according to any one of claims 1 to 6, wherein the notification unit causes the notification to be performed. The control unit determines that at least one of the plurality of objects is moving closer to the lighting device based on a detection result of the sensor unit, and the approach speed is faster than the predetermined speed. The lighting device according to any one of claims 1 to 6, wherein the notification unit causes the notification to be performed. A method for controlling a lighting device, comprising:
The lighting device includes:
A lamp that illuminates the road,
A sensor unit for detecting the speed of each of the plurality of objects on the road;
An informing unit for informing at least one of the plurality of objects,
The control method is configured to notify the notification unit when the approach speed, which is a relative speed when the distance between the plurality of objects decreases, is faster than a predetermined speed based on a detection result of the sensor unit. Control method.

Images