JP2001338773A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system, capable of calling attention of the driver of a vehicle which is turning right or left at an intersection to a pedestrians crossing a crosswalk. SOLUTION: This lighting system L1 is provided with a traffic light signal input part 1 for inputting a traffic light signal indicating a lighting state of an arrow type traffic light installed at an intersection; a brightness sensor 2 for detecting the brightness of an environment; an illumination lamp E1 for irradiating a crosswalk through which a vehicle having turned at the intersection passes when a right arrow signal or a left arrow signal of the arrow type traffic light is lit; and a lighting control part 3 for lighting the illumination lamp E1, when the brightness detected by the brightness sensor 2 is lower than a prescribed value and when the traffic light signal input part 1 receives a traffic light signal indicating the lighting state of the right arrow signal or the left arrow signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminating device installed on a pedestrian crossing or the like to alert a driver of a vehicle traveling toward a pedestrian crossing at night to a person crossing the pedestrian crossing. Things.

[0002]

2. Description of the Related Art As a lighting device of this kind, a pedestrian trying to cross a pedestrian crossing is detected by a human sensor on a pedestrian crossing where no traffic light is installed, and an illuminating lamp is turned on in response to the detection signal. Heretofore, there has conventionally been provided a device which irradiates a pedestrian crossing and alerts a driver of a vehicle coming to the pedestrian crossing.

[0003]

On the other hand, at intersections and pedestrian crossings where traffic lights are installed, there are places where it is difficult for drivers of vehicles to see pedestrians and bicycles crossing the pedestrian crossing at night. In particular, when a vehicle makes a right or left turn at an intersection or the like, pedestrians or bicycles crossing the pedestrian crossing are hardly conspicuous, and the safety of people crossing the pedestrian crossing may not be sufficiently secured.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to alert a driver of a vehicle turning right or left at an intersection to a person crossing a pedestrian crossing. It is an object of the present invention to provide an illuminating device capable of performing the following.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a traffic light signal input section for inputting a traffic light signal indicating a lighting state of an arrow-type traffic light installed at an intersection; A brightness sensor that detects the brightness of the
An illumination lamp that illuminates a pedestrian crossing through which a vehicle turning at the intersection passes when the right arrow signal or the left arrow signal provided in the arrow type traffic light is turned on, and the brightness detected by the brightness sensor is lower than a predetermined brightness. And a lighting control unit for turning on the illuminating lamp when the traffic signal input unit receives a traffic signal indicating the lighting state of the right arrow signal or the left arrow signal. When the right arrow signal or the left arrow signal of the arrow-type traffic light is turned on when is darker than the predetermined threshold value, the lighting control unit turns on the illumination lamp to illuminate the pedestrian crossing where the vehicle turning at the intersection passes. Therefore, the driver of the vehicle can be alerted to a person crossing the pedestrian crossing.

According to a second aspect of the present invention, in the first aspect of the invention, when the right arrow signal or the left arrow signal provided on the arrow-type traffic light is turned on, the vicinity of the pedestrian crossing where a vehicle turning at the intersection passes. A light source that irradiates light to the vehicle is provided, and the lighting control unit blinks the light source in conjunction with the illumination light, and the lighting control unit is in the vicinity of the pedestrian crossing in conjunction with the illumination light. Since the installed light source is blinking, it is possible to inform the driver of the vehicle turning around the intersection of the existence of the pedestrian crossing, and to further draw attention to a person crossing the pedestrian crossing.

According to a third aspect of the present invention, in the first aspect of the invention, a weather information detecting section for detecting information relating to the weather,
Characterized by comprising a light color variable unit that changes the light color of the illumination lamp according to the detection result of the weather information detection unit,
The light color changing unit changes the light color of the illumination lamp according to the detection result of the weather information detection unit, so that the illumination lamp can be turned on with the light color according to the weather.

[0008]

Embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 shows Embodiment 1 of the present invention.
This will be described with reference to FIG. The lighting device of the present embodiment is used at an intersection 10 where a traffic light is installed as shown in FIG.

First, an intersection 10 where the lighting device of the present embodiment is installed will be described. Road 10a at intersection 10
To 11d cross each other, and a crosswalk K1 that crosses each of the roads 11a to 11d near the intersection 10.
To K4. A pedestrian traffic light D1 for a person or a bicycle crossing the pedestrian crossing K1 is attached to a pillar I1 installed on a sidewalk at one end of the pedestrian crossing K1. In addition, a pillar I2 installed on the sidewalk on the other end side of the pedestrian crossing K1 includes a pedestrian traffic light D2 for a person or a bicycle crossing the pedestrian crossing K1 and a vehicle traffic light for a vehicle passing through the road 11c. G2 is attached. Further, a pillar I3 is provided on a sidewalk opposite to the sidewalk on which the pillar I2 is installed with the roadway 11b interposed therebetween, and the pillar I3 is provided for a person or a bicycle crossing the pedestrian crossing K2 provided on the roadway 11b. A traffic light D3 for pedestrians and a vehicle traffic light G3 for vehicles passing through the road 11d are mounted, and an arrow-type traffic light H3 for right-turn vehicles is juxtaposed to the traffic light G3 for vehicles.

The columns I1 and I2 provided on both sides of the crosswalk K1 have irradiation areas B1 and B2 of the crosswalk K1.
Illumination devices L1 and L2 respectively provided with illumination lamps E1 and E2 formed of discharge lamps such as fluorescent lamps for irradiating light. Although not shown, the other roads 11b-1
Similar lighting devices are installed on pedestrian crossings K2 to K4 crossing 1d, respectively.

Here, the configuration of the lighting device L1 is shown in FIG.
This will be described with reference to the block diagram of FIG. Note that the lighting device L2 has substantially the same configuration as the lighting device L1, and a description thereof will be omitted. The lighting device L1 includes a traffic light signal input unit 1 to which a traffic light signal indicating the signal state is input from an arrow-type traffic light H3 installed at an intersection 10, a brightness sensor 2 made of, for example, CdS for detecting the surrounding brightness. , A pedestrian crossing K through which vehicles turning right when the arrow-type traffic light H3 lights up
The illumination lamp E1 illuminates the illumination lamp 1 when the brightness detected by the brightness sensor 2 is lower than a predetermined brightness, and the traffic signal input unit 1 receives a traffic signal indicating the lighting state of the arrow-type traffic signal H3. And a lighting control unit 3 for lighting each of E1. The lighting control units 3 of the lighting devices L1 and L2 are housed inside the distribution boards C1 and C2 attached to the columns I1 and I2, respectively.

As described above, in the illumination devices E1 and E2, the brightness detected by the brightness sensor 2 is lower than the predetermined brightness, and the traffic signal signal input unit 1 outputs a traffic signal indicating the lighting state of the arrow-type traffic signal H3. Upon receipt, the lighting control unit 3 lights the illumination lights E1 and E2, respectively, so that the pedestrian crossing K1 through which the vehicle turning right from the roadway 11d passes can be illuminated by the illumination lights E1 and E2, and the driver of the vehicle can be illuminated. On the other hand, it is possible to call attention to pedestrians and bicycles crossing the pedestrian crossing K1.

Further, in the vicinity of the pedestrian crossing K1 where the vehicle that has turned right at the intersection 10 when the arrow-type traffic light H3 is lit, light is applied to the vehicle that is turning right in the forward direction in the traveling direction of the vehicle. A plurality of blinking light sources N having directivity and predetermined luminance are embedded and arranged, and the lighting control unit 3 blinks each blinking light source N in conjunction with the illumination lamp E1 or E2. Because of this, it is possible to inform the driver of the vehicle turning right of the presence of the pedestrian crossing K1, and to further draw attention to a person who crosses the pedestrian crossing K1. Each blinking light source N
It is desirable that the luminance of the light is at least such that light reaches the driver, and that the driver does not feel glare. For example, a red light emitting diode is preferably used as the light source. .

The lighting device L2 includes, for example, "traversing".
And a display unit J2 for emitting and displaying characters such as
The lighting control unit 3 makes the display unit J2 emit light in conjunction with the illumination lamp E2, so that the driver of the vehicle that has turned right on the roadway 11d is notified that a pedestrian or a bicycle is crossing. This can further alert the driver and increase the effect of preventing accidents.

In this embodiment, when the brightness detected by the brightness sensor 2 is lower than a predetermined brightness and the traffic light signal input unit 1 receives a traffic light signal indicating the lighting state of the arrow-type traffic light H3, the light is turned on. The control unit 3 turns on the illuminating lamps E1 and E2, and detects the heat rays radiated by the persons in the detection areas A1 and A2 provided on the near side in the cross direction of the pedestrian crossing K1 to thereby illuminate the pedestrian crossing K1. Each of the lighting devices L1 and L2 is provided with a human sensor F1 or F2 composed of a pyroelectric element for detecting the presence or absence of a person trying to cross. The human sensors F1 and F2 detect the presence of a human and the above condition is satisfied. The lighting control unit 3 may turn on the lighting lamps E1 and E2 only when the lighting is performed. If there is no person trying to cross the pedestrian crossing K1, the lighting lamps E1 and E2 are not turned on. Energy saving It is possible to achieve.

(Embodiment 2) FIG. 3 shows Embodiment 2 of the present invention.
This will be described with reference to FIG. Since the basic configuration of the lighting device is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

By the way, the lighting devices L1 of the first embodiment have only one kind of lighting lamps E1.
Has the same light color regardless of the weather. For example, the lighting lamp E1
When a discharge lamp such as a fluorescent lamp is used for ..., when the fog is generated, the light of the illumination lamps E1 ... is irregularly reflected on the particles of water, so that a wall is formed. May be obstructed.

Therefore, in the lighting devices L1 of the present embodiment, the front panel of the light source is covered with a transparent panel and the front panel of the light source is covered with a transparent panel colored yellow. In addition to providing two types of illumination lamps, that is, an illumination lamp Pb for rain and fog, a humidity sensor 4 for detecting ambient humidity is provided. If the detection result of the humidity sensor 4 is less than the predetermined value, the lighting control unit 3 determines that the weather is fine, and switches the lighting lamp to be turned on to the lighting lamp Pa for fine weather. If the detection result is equal to or more than the predetermined value,
The lighting control unit 3 determines that the weather is rain or fog, and switches the lighting lamp to be turned on to the rain / fog lighting lamp Pb.

As described above, the lighting control unit 3 as a light color variable unit
In the above, the lighting lamp to be turned on is switched according to the detection result of the humidity sensor 4 serving as a weather information detecting unit, and the light color of the lighting lamp is changed. When rain or fog occurs, the rain / fog lighting lamp Pb is turned on. Like that. Since the illumination light Pb for rain / fog has a longer wavelength than the illumination light Pa for fine weather, the light of the illumination light Pa is prevented from being irregularly reflected in the fog, and the driver's view is blocked. Can be prevented. Therefore, even in bad weather, it is easier to find pedestrians and pedestrians who are crossing the pedestrian crossing, and it is possible to alert the driver to the pedestrian crossing pedestrian sufficiently, and the safety of the pedestrian crossing Can be secured.

In each of the above embodiments, the pedestrian crossing when the vehicle makes a right turn has been described. However, the above-described lighting device may be provided on the pedestrian crossing when the vehicle makes a left turn. In addition, the driver of the vehicle turning left can be alerted to a pedestrian or a bicycle crossing the pedestrian crossing K1.

[0022]

As described above, according to the first aspect of the present invention, there is provided a traffic light signal input portion for inputting a traffic light signal indicating a lighting state of an arrow-type traffic light installed at an intersection, and a brightness for detecting ambient brightness. Sensor, an illuminating lamp that illuminates a pedestrian crossing through which a vehicle turning at the intersection passes when the right arrow signal or the left arrow signal provided in the arrow signal signal is turned on, and the brightness detected by the brightness sensor is a predetermined value. Darker than the brightness, and when the traffic light signal input unit receives a traffic light signal indicating the lighting state of the right arrow signal or the left arrow signal, a lighting control unit that lights the illuminating lamp, characterized by comprising If the surrounding brightness is lower than a predetermined threshold,
When the right-arrow signal or the left-arrow signal of the arrow-type traffic signal lights, the lighting control unit turns on the illuminating light to illuminate the pedestrian crossing where vehicles turning around the intersection pass. There is an effect that it is possible to call attention to a person who crosses.

According to a second aspect of the present invention, in the first aspect of the present invention, when the right arrow signal or the left arrow signal provided on the arrow-type traffic light is turned on, the vicinity of the pedestrian crossing where a vehicle turning at the intersection passes. A light source that irradiates light to the vehicle is provided, and the lighting control unit blinks the light source in conjunction with the illumination light, and the lighting control unit is in the vicinity of the pedestrian crossing in conjunction with the illumination light. Since the installed light source is blinking, it is possible to inform the driver of the vehicle turning around the intersection of the existence of the pedestrian crossing, and to further alert the people crossing the pedestrian crossing effective.

According to a third aspect of the present invention, in the first aspect of the present invention, a weather information detecting section for detecting information relating to weather, and a light color for changing a light color of an illuminating lamp according to a detection result of the weather information detecting section. And a variable section, wherein the light color variable section changes the light color of the illuminating lamp in accordance with the detection result of the weather information detecting section, thereby lighting the illuminating lamp with the light color corresponding to the weather. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a block diagram of a lighting device according to a first embodiment.

FIG. 2 is an explanatory diagram illustrating a usage state of the lighting device.

FIG. 3 is a block diagram of a lighting device according to a second embodiment.

FIG. 4 is an external view of the lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traffic signal input part 2 Brightness sensor 3 Lighting control part E1 Illumination lamp L1 Illumination device

Claims (3)

[Claims] A traffic light signal input section for receiving a traffic light signal indicating a lighting state of an arrow-type traffic light installed at an intersection;
A brightness sensor for detecting the brightness of the surroundings, an illuminating light for illuminating a pedestrian crossing through which a vehicle turning at the intersection passes when the right arrow signal or the left arrow signal provided on the arrow signal light is turned on, and a brightness sensor. The detected brightness is darker than a predetermined brightness, and, when the traffic light signal input unit receives a traffic light signal indicating the lighting state of the right arrow signal or the left arrow signal, a lighting control unit that lights the illumination lamp. A lighting device, comprising: 2. A light source for irradiating light to the vehicle is provided in the vicinity of a pedestrian crossing where a vehicle turning at the intersection passes when a right arrow signal or a left arrow signal provided on the arrow signal signal is turned on. The lighting device according to claim 1, wherein the lighting control unit blinks the light source in conjunction with the lighting lamp. 3. A weather information detecting section for detecting information relating to weather, and a light color variable section for changing a light color of an illuminating lamp according to a detection result of the weather information detecting section. The lighting device according to claim 1.