JP2016009563A - Warning attention device for tunnel and warning attention system with the warning attention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an irregular situation such as a car accident or the like in a tunnel to be informed automatically to a car driver in regard to its occurrence by itself, its degree and its location through intuition fast informing for its warning attention.SOLUTION: This invention comprises a plurality of warning attention devices 100A to 100N for a tunnel and a central control part 200 for controlling these warning attention devices 100A to 100N. The warning attention devices 100A to 100N for a tunnel have proper IDs. The central control part 200 specifies the warning attention device 100 for tunnel detecting an irregular situation in a tunnel TN with the prescribed IDs, and at the same time light color tones of variable light-emitting parts 110 of the warning attention devices 100 for a tunnel across the specified warning attention device 100 for a tunnel are changed.

Description

  The present invention relates to a tunnel alerting system that alerts a driver of an automobile by promptly informing the driver of the occurrence of a trouble such as a car accident in a tunnel.

The applicant of the present application has previously filed Japanese Patent Application Laid-Open No. 2012-146527 “Road Lighting Device”. The “road lighting device” includes: a casing installed in a railing section of a road, an illumination section that is stored in the casing and irradiates light on a road surface of the road, and is stored in the casing, A sensor unit for detecting the speed of a traveling vehicle; and a warning light-emitting unit that is stored in the housing and emits light when the vehicle speed detected by the sensor unit is equal to or lower than a preset speed. The light emitted from the light emitting unit for alerting is different in hue from the light emitted from the illumination unit.
In other words, this road lighting device has a light emitting unit for alerting that emits light of a hue different from the light of the lighting unit, and if there is a car that runs slowly for some reason, the light emitting unit for alerting is caused to emit light Now, other car drivers are informed of the dangers.

Further, as shown in FIG. 4, a general tunnel alert system for a tunnel includes an electric bulletin board type warning display board 500 installed in front of the tunnel TN and an emergency parking zone EP provided in the tunnel TN. And an emergency telephone box (not shown) provided at regular intervals in the tunnel TN.
When an abnormal event such as a traffic accident or a fire occurs in the tunnel TN, when the driver who has detected the alarm is notified by the push button type notification device installed in the emergency telephone box, the alarm display board 500 according to the notification. Or the auxiliary alarm notification board 510 is notified. In addition, the notification by the push button type method apparatus is also notified to the management office that manages the tunnel TN, and is also notified to the police station and the fire station.
The management office monitors the situation in the tunnel TN via a monitoring camera installed in the tunnel TN, and when an abnormal event is confirmed, the notification is given by the alarm display board 500 or the auxiliary alarm notification board 510. Notification to the police station and fire department.

  In the alarm display board 500 and the auxiliary alarm notification board 510, only alerting by character information is performed. In addition, there is a problem that alerting the driver who missed the alarm display plate 500 in front of the tunnel TN's wellhead can be performed only by the auxiliary alarm notification plate 510 in the tunnel TN.

  Some large tunnels are provided with the warning display plate 500 or / and a traffic light in front of the wellhead so that if an abnormal event occurs, it is intuitively notified by the traffic light.

JP 2012-146527 A

  By the way, tunnels are more dangerous because of their peculiarities that there are fewer escapes than ordinary roads. Nevertheless, an abnormal event is notified by a driver's notification or visual confirmation by a monitoring camera, and it is not completely capable of dealing with an abnormal event that occurs suddenly.

  In addition, even if an alarm display board or traffic light is installed in front of the tunnel wellhead, there may be a certain percentage of cars that overlook it and enter the tunnel where an abnormal event has occurred. .

  The present invention was devised in view of the above circumstances, and when an abnormal event such as a car accident occurs in a tunnel, the occurrence of the abnormal event itself, the degree, and the location are automatically intuitive to the driver of the car. The aim is to provide a tunnel alert system that alerts and alerts early.

  A tunnel alerting device according to the present invention includes a variable light-emitting unit installed in a tunnel, a sensor unit that detects an abnormal situation in the tunnel, and the variable light-emitting unit when an abnormal event is detected by the sensor unit. And a variable light emission control unit that emits light.

  In addition, another tunnel alert device according to the present invention includes a variable light emitting unit installed in the tunnel, an illumination unit that irradiates light on the road surface in the tunnel, and a sensor that detects an abnormal event in the tunnel. A variable light emission control unit that causes the variable light emission unit to emit light when an abnormal situation is detected by the sensor unit, and a housing that stores the illumination unit and the sensor unit.

  The sensor section is unique to a tunnel alerting device or / and uses existing tunnel equipment.

  The variable light emission control unit can emit light from the variable light emission unit even when an abnormal event is detected.

  The abnormal event to be detected by the sensor unit includes a low-speed event in which the vehicle traveling in the tunnel is below a preset speed, and an obstacle event in which an obstacle that obstructs the traveling of the vehicle traveling in the tunnel appears. included. The abnormal event may include a tunnel fire.

  The variable light emitting unit is configured to change the hue.

  On the other hand, the tunnel alerting system according to the present invention has a plurality of tunnel alerting devices and a central control unit that controls the tunnel alerting devices, and is unique to the tunnel alerting device. The central control unit identifies the tunnel alert device that has detected the abnormal event in the tunnel by the ID, and identifies the identified tunnel alert device and the identified tunnel alert. It is comprised so that the hue of the variable light emission part of the alerting device for tunnels before and behind the alerting device may be changed.

  The tunnel alerting devices may be connected to each other by communication means.

  Furthermore, the hue of the variable light emitting unit may be set to be different depending on the content of the detected abnormal event. The hue of the light emitted from the variable light emitting unit may be set to be different depending on the distance from the tunnel alerting device that detected the abnormal event in the tunnel.

  The variable light emitting unit of the tunnel alerting device installed at the emergency exit in the tunnel may be set so as to emit light having a hue different from that of the other part when an abnormal event occurs.

  Also, among the tunnel alerting devices installed in the tunnel, the variable light emitting part of the tunnel alerting device installed in the vicinity of the tunnel wellhead is a hue that makes the entrance to the tunnel reluctant when an abnormal event occurs. It is good that it is set to emit light.

  A tunnel alerting device according to the present invention includes a variable light-emitting unit installed in a tunnel, a sensor unit that detects an abnormal situation in the tunnel, and the variable light-emitting unit when an abnormal event is detected by the sensor unit. Since the variable light emission control unit that emits light is provided, the occurrence of an abnormal event can be intuitively informed to the driver by the light from the variable light emission unit, so that it can contribute more safely.

  A variable light emitting unit installed in the tunnel, an illumination unit that irradiates light on the road surface of the road in the tunnel, a sensor unit that detects an abnormal event in the tunnel, and when an abnormal situation is detected by this sensor unit, When a variable light emission control unit that emits light from a variable light emission unit and a housing that houses the illumination unit and the sensor unit are included, an illumination unit that illuminates the road surface is also included. In addition, there is an advantage that not only the illumination device but also a variable light emitting unit can be installed.

  The sensor part is unique to the tunnel alert device or / and uses existing tunnel equipment, but if the existing tunnel equipment is used for the sensor part, it will be used for tunnels in a short time and at low cost. An alert device can be installed.

  If the variable light emission control unit is configured so that the variable light emission unit can emit light other than when an abnormal event is detected, the variable light emission control unit constantly lights up, reduces dots, and turns on light even if no abnormal event occurs. Etc., which can contribute to smoother traffic in the tunnel.

  The abnormal event to be detected by the sensor unit includes a low-speed event in which the vehicle traveling in the tunnel is below a preset speed, and an obstacle event in which an obstacle that obstructs the traveling of the vehicle traveling in the tunnel appears. included. The abnormal event to be detected by the sensor unit includes a fire in the tunnel. This would allow for the handling of most unusual events that would occur in the tunnel.

  If the variable light emitting unit can change the hue of the emitted light, it can emit the light of the hue according to the generated abnormal event, so that the abnormal event occurs more intuitively for the driver. Can be informed.

The tunnel alert system according to the present invention includes the tunnel alert device and a central control unit that controls the tunnel alert device. The tunnel alert device is unique to the tunnel alert device. The ID is attached, and the central control unit specifies the tunnel alert device that has detected the abnormal event in the tunnel by the ID, the identified tunnel alert device, and the identified tunnel alert device. The hue of the light of the variable light emission part of the tunnel alerting device before and after the device is changed.
If this is the case, the location where the abnormal event has occurred can be identified by the ID of the tunnel alerting device, so that more appropriate measures can be taken.

  The warning devices for each tunnel are connected to each other by some communication means, but if they are connected to each other by visible light communication, a group of cables for connecting the warning devices for each tunnel to each other is unnecessary. Therefore, the system as a whole can be simplified.

  If the hue of light emitted from the variable light emitting unit varies depending on the content of the detected abnormal event, the driver can more intuitively inform the driver of the content of the abnormal event.

  If the hue of the light emitted by the variable light-emitting unit varies depending on the distance from the tunnel alert device that detected the abnormal event in the tunnel, the distance from the location where the abnormal event has occurred can be operated more intuitively. Can be informed.

  If the variable light emitting part of the tunnel alert device installed at the emergency exit in the tunnel is configured to emit light of a different hue from the other parts when an abnormal event occurs, the presence of the emergency exit will be more Intuitively let the driver know.

  Among the tunnel alerting devices installed in the tunnel, the variable light-emitting part of the tunnel alerting device installed near the tunnel entrance is a light with a hue that makes the entrance to the tunnel reluctant when an abnormal event occurs. If an abnormal event occurs, the number of vehicles newly entering the tunnel can be reduced. Moreover, even if it enters the tunnel once, the hue of the light emitted from the surrounding tunnel alert device is different from the usual, so it is reluctant to enter further, so it is possible to generate a secondary disaster event. It can be prevented in advance.

It is the schematic of the alerting system for tunnels concerning embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is drawing of the tunnel alerting apparatus which comprises the alerting system for tunnels which concerns on this invention, Comprising: (A) is a schematic front view, (B) is a schematic right side view, (C) ) Is a schematic plan view. It is a light distribution characteristic figure of the variable light emission part of the alerting device for tunnels which comprises the alerting system for tunnels which concerns on this invention. It is a schematic explanatory drawing which shows the alerting system in the conventional tunnel.

  A tunnel alerting system 1000 according to an embodiment of the present invention includes a plurality (14 in FIG. 1) of tunnel alerting devices 100A to 100N and a central control unit that controls these tunnel alerting devices 100A to 100N. 200, a unique ID is assigned to the tunnel alerting devices 100A to 100N, and the central control unit 200 detects the abnormal event in the tunnel TN. Is specified by the ID, and the hue of light of the variable light emitting unit 110 of the tunnel alerting device 100 before and after the specified tunnel alerting device 100 and the specified tunnel alerting device 100 is changed. It is configured.

In the following description, a state in which the tunnel alert system 1000 is installed in a one-way tunnel TN having two lanes, that is, a two-lane having an overtaking lane R1 and a traveling lane R2, will be described as an example. Needless to say, it is not limited.
This tunnel TN has a general structure in which an emergency parking zone EP is provided on the traveling lane R2 side and an emergency exit EE is provided on the overtaking lane R1 side opposite thereto. The tunnel TN has 14 tunnel alerting devices 100A to 100N, the emergency exit EE is located at the location where the tunnel alerting device 100I on the overtaking lane R1 is installed, and the emergency parking zone EP is on the traveling lane R2 side. The tunnel alerting device 100J is present at the place where the tunnel alerting device 100J is installed.

  In this specification, an alphabet such as “100A” is used to indicate a specific tunnel alert device, but an alphabet such as “100” is used to indicate a tunnel alert device itself. Without explaining.

As shown in FIG. 1, the tunnel alerting device 100 is attached to the right side wall portion of the overtaking lane R1 and the left side wall portion of the traveling lane R2 at regular intervals.
Each tunnel alerting device 100 is assigned a unique ID and is identified by this ID. The tunnel alerting devices 100 are connected to each other by a visible light communication signal L. In this visible light communication, communication is relayed in the order of tunnel alert device 100A → tunnel alert device 100B → tunnel alert device 100C to tunnel alert device 100M → tunnel alert device 100N. It has become.

In the above description, it is expressed that the signal L is sequentially sent to the next tunnel alert device 100 as follows: tunnel alert device 100A → tunnel alert device 100B → tunnel alert device C˜. However, the present invention is not limited to this.
For example, there are two systems of visible light communication, the first system is a tunnel alert device 100A → the tunnel alert device 100C → the tunnel alert device E˜, and the second system is a tunnel alert device 100B → Tunnel alerting device 100D → tunnel alerting device F˜ Every other signal L may be sent.

Therefore, for example, if the tunnel alerting device 100E detects an abnormal event, the abnormal event is sequentially visible from the tunnel alerting device 100E that has detected the abnormal event to the adjacent tunnel alerting devices 100F to 100N. Relayed by optical communication, the contents of the abnormal event (along with the ID indicating the tunnel alert 100E that detected the abnormal event) are notified to the central control unit 200 installed in the management office or the like.
In addition, the arrow shown between the alerting apparatuses 100A-100N for tunnels in FIG. 1 has shown the communication order of visible light communication.

  The tunnel alerting device 100 constituting the tunnel alerting system 1000 is installed in the tunnel TN, detects an abnormal event occurring in the tunnel TN, and if an abnormal event is detected, that fact As shown in FIG. 2, the variable light-emitting unit 110, the illumination unit 120 that irradiates light on the road surface of the road in the tunnel TN, and the abnormality in the tunnel TN, as shown in FIG. A sensor unit 150 that detects an event, a variable light-emission control unit 160 that causes the variable light-emitting unit 110 to emit light when an abnormal situation is detected by the sensor unit 150, and a housing 140 that houses the illumination unit 120 and the sensor unit 150 And.

  The variable light emitting unit 110 has a plurality of variable light emitting LED modules 111 housed in a long alert housing 130. The plurality of LED elements used in the variable light emitting LED module 111 are of a so-called full color type and can change the hue. The alerting case 130 stores necessary power supply circuits and the like in addition to the variable light emission control unit 160 for controlling the variable light emission LED module 111.

The variable light emitting LED module 111 of the variable light emitting unit 110 is not limited to a full color type, but is a single color type capable of emitting only light of one hue, for example, red and green, and only a mixed color thereof. May be of a two-color type capable of emitting light.
Among the tunnel alerting devices 100A to 100N installed in the tunnel TN, the tunnel alerting devices 100A, 100B, 100M, and 100N of the tunnel alerting devices 100A, 100B, 100M, and 100N are as follows. As will be described later, when a serious abnormal event (for example, a fire in the tunnel TN) occurs in the tunnel TN, a hue (eg, red) that hesitates to enter the tunnel TN in order to hesitate to enter the tunnel TN. Since the point is reduced by a single color type.

  The variable light-emitting unit 110 has a light distribution control aiming to improve visibility from the driver, for example, it is wide in the longitudinal section direction of the road, and can illuminate the wall surface of the tunnel TN and the road surface. This is good (see FIG. 3). By illuminating the wall surface of the tunnel TN and the road surface, the driver can be more surely informed that an abnormal event has occurred.

  The illumination unit 120 includes an illumination LED module 121 housed in an illumination housing 140 having the same shape as the alerting housing 130. The plurality of LED elements used in the illumination LED module 121 are of the white light type, and the hue cannot be changed. The illumination housing 140 stores the sensor unit 150, a power supply circuit necessary for the illumination LED module 121, and the like.

Both housings 130 and 140 are made of an aluminum alloy and are formed in a horizontally long rectangular parallelepiped shape, and an opening is formed on the front surface facing the road surface. This opening is covered with a transparent cover made of transparent tempered glass. Note that the illumination housing 140 in which the sensor unit 150 is housed is provided at a position where the outside can be seen from the transparent cover so that the automobile in which the sensing unit of the sensor unit 150 travels can be desired.
In addition, connector portions 131 and 141 for power supply lines to the LED modules 111 and 121 are formed on the right side surfaces of the housings 130 and 140, respectively.
Furthermore, both the housings 130 and 140 are connected in parallel via the mounting angle 170 at both left and right ends. The mounting angle 170 is for fixing both the housings 130 and 140 to the wall surface of the tunnel TN.
In addition, the material of both the housings 130 and 140 is not limited to the aluminum alloy but may be other materials such as a stainless steel plate. However, from the viewpoint of weight reduction and cost reduction, the aluminum alloy is used. It is desirable to make it.

The sensor unit 150 receives a signal from the speed measurement unit that measures the speed of the automobile, the temperature measurement unit that measures the ambient temperature, and the measurement unit, and the speed of the automobile is equal to or less than a preset speed. And a determination unit for determining whether or not the ambient temperature is in a dangerous state (whether or not a fire has occurred). When the determination unit determines that the vehicle speed is equal to or lower than a preset speed, that is, a low-speed event has occurred, or that a fire has occurred, the variable light emission control unit 160 is used. The variable light emitting unit 110 is turned on or reduced.
A normal infrared sensor, a Doppler type speed sensor, an image sensor, or the like is used for the speed measurement unit or the temperature continuation unit used in the sensor unit 150.

  In addition, when an abnormal event occurs (when it is determined that the speed of a traveling vehicle is lower than a preset speed or a fire occurs), the tunnel alert 100 that has made the determination is used. Is notified to the central control unit 200 installed in the management office or the like.

  Each of the tunnel alerting devices 100A to 100N has a unique ID, and is connected to the adjacent tunnel alerting devices 100A to 100N by visible light communication, thereby enabling the tunnel alerting system. 1000.

  The variable light emitting unit 110 of the tunnel alerting device 100 constituting the tunnel alerting system 1000 is turned off in a normal state, that is, in a state where no abnormal event occurs, and is turned on only when an abnormal event is detected. It has come to be.

  The abnormal event patterns are listed below, and the operation of the tunnel alert system 1000 will be described with reference to FIG.

(1) When there is an automobile traveling at a speed lower than a preset speed, and the tunnel alert device 100E detects this, for example, when there is an automobile traveling at a speed lower than a preset speed for some reason , There is a risk that it may interfere with the driving of other automobiles.
Accordingly, the tunnel alert device 100E that detects a car that is traveling slowly at a speed lower than the preset speed and the tunnel alert devices 100C, 100D, 100F, and 100G before and after the tunnel alert device 100C, 120D, respectively. , 120F, and 120G are set so as to emit light having a hue different from that of light emitted from 120F and 120G (for example, yellow light). If there is a car that is traveling slowly, the tunnel alert device 100 that detects it will also change according to the driving of the car, so a tunnel that emits yellow light in order along the driving of the car The warning device 100 for use will change.
For this reason, it is possible to detect that an abnormal event has occurred in the front of a vehicle traveling behind a vehicle traveling at a speed lower than a preset speed.

  Further, the location where the abnormal event has occurred is grasped by notifying the central control unit 200 of the ID of the tunnel alert device 100E that has detected the abnormal event through visible light communication. As a result, a more accurate response to an abnormal event including notification to a police station or a fire department can be quickly performed.

  The variable light emitting units 110A to 110N may be able to change the hue according to the content of the abnormal event.

  In the above description, the same treatment is applied regardless of whether the vehicle that is traveling slowly at a speed equal to or lower than the preset speed is traveling in either the overtaking lane R1 or the traveling lane R2. You may make it change with the lane which is drive | working as follows.

For example, if you are traveling slowly in the overtaking lane R1 at a speed below a preset speed, the danger seems to be higher, so it is set in advance, regardless of whether you are overtaking the lane R1 or the driving lane R2. Light of a hue different from the light emitted from the tunnel alerting device 100E that detects a car that is traveling slowly at a speed below the predetermined speed and the tunnel alerting devices 100C, 100D, 100F, and 100G before and after the tunnel (for example, yellow It is good to set to emit light.
Also, if you are traveling slowly in the driving lane R2 at a speed below the preset speed, it will be less dangerous than if you are traveling in the overtaking lane R1, so you will be alerted to the tunnel on the driving lane R2 side. Only the variable light emitting units 110D and 110F of the devices 100D and 100F may emit light.
In these cases as well, the tunnel alerting device 100 that emits yellow light in order in accordance with the traveling of the vehicle that travels slowly changes in the same manner as described above.

(2) When there is an automobile that is completely stopped on the lane, and the tunnel alert device 100E detects this, for example, an abnormal event has occurred where the automobile is completely stopped on the lane In this case, if the vehicle behind the vehicle is slowly moved as it is, there is a high possibility that a more serious accident will occur. Therefore, the light from the variable light emitting units 110A to 110N of all the tunnel alerting devices 100A to 100N in the tunnel TN Make the hue red and let other drivers know that a serious abnormal event has occurred.
In addition, among the tunnel alerting devices 100A to 100N installed in the tunnel TN, the tunnel alerting devices 100A, 100B, 100M, and 100N variable light emitting units 110A, 110B installed near the tunnel TN entrance, 110M and 110N are set to hues (for example, red) that cause the entry to the tunnel TN, and are further reduced. As described above, among the tunnel alerting devices 100A to 100N, the light emitting units 110A, 110B, 110M, and 110N of the tunnel alerting devices 100A, 100B, 100M, and 100N installed in the vicinity of the tunnel TN entrance. By changing the hue to a hue reminiscent of entering the tunnel TN and further reducing the number of cars, it is possible to eliminate a new vehicle entering the tunnel TN.
It should be noted that the function of making the entry into the tunnel TN reluctant can be applied to an obstacle event such as when there is an obstacle, for example, a large falling object from a truck or the like.

  Conventionally, a driver of a car who is about to enter the tunnel TN can be notified of an abnormal event only by text information using an electric bulletin board type warning display board 500 installed in front of the tunnel TN. In addition, the tunnel TN has only the auxiliary warning notification plate 510 for the emergency parking zone EP. However, in the tunnel alert system 1000 according to the embodiment of the present invention, each tunnel alert device 100 in the tunnel TN has the Since the abnormal event can be more intuitively notified by the light emitted from the variable light emitting unit 110 and having a hue different from the normal color, safety can be further improved.

In addition, when a serious abnormal event occurs in the tunnel TN, the driver of the car that has already entered the tunnel TN is located at the position of the emergency exit EE installed at regular intervals (usually about 400 m) in the tunnel TN. It is important to know. Here, description will be made assuming that the emergency exit EE is installed at the installation position of the tunnel alerting device 100I.
The variable light emitting unit 110I of the tunnel alerting device 100I installed in the emergency exit EE, when an abnormal event occurs, the tunnel alerting devices 100A to 100H of other parts, the variable light emitting units 110A to 110H of 100J to 100N, Light of a hue different from 110J to 110N is emitted.
For example, when an abnormal event occurs, the variable light emitting units 110A to 110H and 110J to 110N of the tunnel alert devices 100A to 100H and 100J to 100N other than the emergency exit EE are configured to emit red or yellow light. If the variable light emitting unit 110I of the tunnel alerting device 100I located at the emergency exit EE emits green light, the driver can be intuitively informed of the presence of the emergency exit EE.

The abnormal event in the above description is quite serious and was mainly intended to prevent entry into the tunnel TN.
However, even if it is an abnormal event, there are things that can be dealt with by simply lowering the speed in the tunnel TN from the normal speed limit, not prohibiting entry into the tunnel TN. For example, it is in a state where the broken vehicle is stopped in the emergency parking zone EP. Such a case can be dealt with by reducing the speed limit on the front side of the emergency parking zone EP where the broken vehicle is stopped.
Conventionally, it has been dealt with by changing the speed limit displayed on the speed indicator in the electric display format, but it is more intuitive by using the tunnel alert system according to the embodiment of the present invention. You will be able to deal with it.

  For this purpose, the variable light emitting units 110A to 110F of the plurality of tunnel alerting devices 100A to 100F located on the near side of the tunnel alerting device 100G that has detected the abnormal event are sequentially reduced. That is, since the variable light emitting units 110A to 110F of the plurality of tunnel alerting devices 100A to 100F are sequentially reduced at the same speed as the speed at which the automobile is desired to travel, it gives a feeling that the band of light is traveling. is there. The driver will drive the car at the same speed as the band of light that appears to be driving.

When an abnormal event as described above occurs, the illumination unit is linked to the light from the variable light emitting unit 110 in order to make the light with different hues from the variable light emitting unit 110 of each tunnel alerting device 100 stand out. You may enable it to change 120 light beams.
Of course, the luminous flux of the light emitted from the variable light emitting unit 110 may be changed.

Further, the light emitted from the variable light emitting unit 110 may be changed according to the surrounding weather, season, temperature, and time zone.
For example, a setting in which the illuminance is lower at night than at daytime can be considered.

Moreover, in the tunnel alerting device 100 described above, the illumination unit 120 and the variable light emitting unit 110 are stored in separate casings 130 and 140, but may be the same casing. However, from the viewpoint of improving the visibility of the variable light emitting unit 110, it is considered better to use a separate housing.
Further, in the above-described tunnel alert device 100, the presence of the illumination unit 120 is indispensable, but there is no equivalent to the illumination unit 120 apart from the conventional illumination device that has been conventionally installed. It is also possible to configure a tunnel alert system by adding a tunnel alert device.

  Furthermore, in the tunnel alerting system 1000 described above, the tunnel alerting devices 100A to 100N are connected by visible light communication, but may be connected by other communication means such as a general cable. Alternatively, it may be connected by another wireless communication method. However, it is possible to reduce the cost by connecting each of the tunnel alerting devices 100A to 100N using visible light communication or another wireless communication method, rather than connecting them with a general cable.

Furthermore, in the tunnel alerting device 100 described above, the sensor unit 150 is incorporated in the illumination case 140, but the present invention is not limited to this, and is separate from the illumination case 140. It may be built in the case.
It is also possible to divert other existing devices as tunnel equipment, such as surveillance cameras, fire detectors, and tunnel emergency equipment, as the sensor unit 150. For example, the sensor unit 150 can be combined with a monitoring camera and a program for calculating the moving speed of an object projected on the monitoring camera. It is also possible to divert the fire detector as the sensor unit 150 by inputting a signal generated when the fire detector detects a fire to the central control unit 200.

  Furthermore, since the presence and position of the emergency parking zone EP need to be intuitively known to the driver of the automobile, only the tunnel alert device 100J located at the same location as the emergency parking zone EP is used for other tunnels. It is also effective to configure so as to always emit light having a hue different from that of the warning devices 100A to 100I and 100K to 100N.

  Further, when the variable light emission control unit 110 is configured so that the variable light emission unit can emit light even when an abnormal event is detected, lighting of a plurality of patterns such as constant lighting, point reduction, flow lighting, and the like is possible. Therefore, it is possible to contribute to smoother traffic in the tunnel TN.

100A to 100N Tunnel alerting device 200 Central control unit 1000 Tunnel alerting system

Claims (13)

  A variable light emission unit installed in the tunnel, a sensor unit for detecting an abnormal situation in the tunnel, and a variable light emission control unit for causing the variable light emission unit to emit light when an abnormal event is detected by the sensor unit A warning device for tunnels.   A variable light emitting unit installed in the tunnel, an illumination unit that irradiates light on the road surface of the road in the tunnel, a sensor unit that detects an abnormal event in the tunnel, and when an abnormal situation is detected by this sensor unit, A tunnel alerting device, comprising: a variable light emission control unit that emits light from a variable light emission unit; and a housing that houses the illumination unit and the sensor unit.   The tunnel alerting device according to claim 1 or 2, wherein the sensor unit is unique to the tunnel alerting device or / and uses existing tunnel equipment.   4. The tunnel alert device according to claim 1, wherein the variable light emission control unit can cause the variable light emission unit to emit light even when an abnormal event is detected. 5.   The abnormal event to be detected by the sensor unit includes a low-speed event in which the vehicle traveling in the tunnel is below a preset speed, and an obstacle event in which an obstacle that obstructs the traveling of the vehicle traveling in the tunnel appears. The tunnel alerting device according to claim 1, wherein the tunnel alerting device is included.   The tunnel alerting device according to claim 1, 2, 3, 4, or 5, wherein the abnormal event to be detected by the sensor unit includes a fire in the tunnel.   The tunnel alerting device according to claim 1, wherein the variable light emitting unit is capable of changing a hue of emitted light.   A plurality of tunnel alerting devices according to claim 1 and a central control unit for controlling the tunnel alerting device, wherein the tunnel alerting device is assigned a unique ID. The central control unit identifies the tunnel alert device that detected the abnormal event in the tunnel by the ID, and the tunnel alert device for the identified tunnel and the tunnel before and after the identified tunnel alert device. A warning system for tunnels, characterized in that the hue of light of the variable light emitting part of the warning device for the tunnel is changed.   9. The tunnel alert system according to claim 8, wherein the tunnel alert devices are connected to each other by communication means.   The tunnel alerting system according to claim 8 or 9, wherein the hue of the light emitted by the variable light emitting unit varies depending on the content of the detected abnormal event.   The tunnel alerting system according to claim 8, 9 or 10, wherein the hue of the light emitted by the variable light emitting unit varies depending on a distance from the tunnel alerting device that detects an abnormal event in the tunnel.   The variable light emitting unit of the tunnel alerting device installed at the emergency exit in the tunnel emits light having a different hue from that of the other part when an abnormal event occurs. 11. A tunnel alert system according to 11.   Among the tunnel alerting devices installed in the tunnel, the variable light emitting part of the tunnel alerting device set near the tunnel entrance is a light of a hue that makes the entrance to the tunnel reluctant when an abnormal event occurs. 13. The tunnel alerting system according to claim 8, 9, 10, 11 or 12, characterized in that:

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