JPH11209929A - Traffic safety system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traffic safety system which can make a driver travelling toward a pedestrian crossing recognize a pedestrian in course of crossing the pedestrian crossing and existence of a bicycle and call his attention to the pedestrian and the bicycle. SOLUTION: During the crossing of a pedestrian trying to cross a pedestrian crossing 1 at night, a road mark 2 erected on both the sides of a road adjacently to the pedestrian crossing 1 and a plurality of road rivets 3 provided on the road surface along the pedestrian crossing are made to radiate light for a specified time together. Thus a driver travelling toward the pedestrian crossing 1 can be easily recognize the existence of the pedestrian, and his attention can be called to the pedestrian to effectively prevent an accident in the pedestrian crossing 1. Since the road mark 2 and the road rivet 3 radiate light together, the driver's attention is strongly called, and when the pedestrian does not exist, they do not radiate the light to avoid economical loss.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to promote safe crossing for pedestrians and cyclists trying to cross a pedestrian crossing at night, and to alert a vehicle traveling toward the pedestrian crossing. It relates to a traffic safety system that can be used.

[0002]

2. Description of the Related Art Conventionally, especially on a pedestrian crossing without traffic light equipment, a so-called internally illuminated pedestrian crossing road sign generally incorporating a lighting device is installed. By illuminating this lighting device throughout the night, the vehicle traveling toward the nighttime crosswalk is made aware of the presence of the crosswalk.

[0003]

However, although the above-mentioned illuminated pedestrian crossing road sign as described above recognizes the presence of a pedestrian crossing, it is lit all night regardless of the presence of pedestrians crossing. Therefore, for drivers who are familiar with the pedestrian crossing road sign, it is scarce to call attention, and although there are lighting facilities to illuminate the pedestrian crossing around, The illuminance is not always enough to recognize the presence of a pedestrian or the like who is dim and crossing. In particular, when an oncoming vehicle is present, a pedestrian or the like may be momentarily invisible due to a so-called evaporation phenomenon. It is sufficient to increase the illuminance of the lighting equipment, but there is an economic loss if the illuminance is kept increased even when there are no pedestrians or the like. Therefore, although there is an internally illuminated pedestrian crossing road sign, accidents on the pedestrian crossing are always present.

Accordingly, the present invention solves the above-mentioned problems,
For the driver traveling to the crosswalk,
It is an object of the present invention to provide a traffic safety system that can recognize the presence of pedestrians, bicycles, and the like that are crossing a pedestrian crossing, and can alert the user.

[0005]

In order to achieve the above object, the present invention has the following arrangement. That is, the traffic safety system according to the present invention is a traffic safety system for urging a pedestrian who tries to cross a pedestrian crossing at night to safely cross and alert a vehicle traveling toward the pedestrian crossing. A road sign is erected on each side of the road in the vicinity of the pedestrian crossing, and a plurality of road studs are buried on the road surface along the pedestrian crossing. Are both emitted for a predetermined time.

According to the present invention, when a pedestrian crossing a pedestrian crossing at night is crossed, a road sign is erected on both sides of the road in proximity to the pedestrian crossing and installed on the road surface along the pedestrian crossing. The multiple road studs that have been illuminated together emit light for a predetermined period of time, which makes it easy for drivers traveling toward the pedestrian crossing to recognize the presence of pedestrians and alerts them, effectively causing an accident at the pedestrian crossing. Prevention can be achieved. In addition, since both the road sign and the road stud emit light, the user is strongly alerted. When the pedestrian is not present, no light is emitted, so that economic loss is avoided.

[0007] Light emission of the road sign and the road studs is generally performed by incorporating a light emitting diode as a light emitting body and causing the light emitting diode to emit light. It may be made to emit light. The light emission time is not particularly limited, but is set to a time sufficient for a pedestrian to safely cross the pedestrian crossing, usually about 30 seconds, and then turned off. In addition, it is preferable that the display of the road sign, such as "caution during crossing", is displayed by light emission. The road studs may emit light linearly or may emit light dotwise. In order to operate at night, a known day / night detection sensor for detecting day / night is appropriately used. The pedestrian refers to a person who crosses a pedestrian crossing, and includes a person who rides on a bicycle or the like.

In the present invention, in order to cause both the road sign and the road tack to emit light, a light emission start signal is transmitted between each road sign and between the road sign and the road tack by wire. However, it is preferable that the light emission start signal be transmitted wirelessly because troublesome wiring work is not required between each road sign and between the road sign and the road tack. For example, a light emission start signal is input to a road sign when a pedestrian crosses, and a transmission circuit and a reception circuit are provided for a road sign, and a reception circuit is provided for a road tack, and the light emission start signal is input to one road sign. Then, light emission of this road sign is started, and this light emission start signal is wirelessly transmitted to other road signs and road tacks, and light emission of other road signs and road tacks is started together with the road signs. It is preferred that it is made so.

In order to input a light emission start signal to one road sign when a pedestrian crosses, a push button switch is provided on the road sign, and the light emission start signal is input to the road sign by closing the push button switch. The road sign may be equipped with a detection sensor that detects pedestrians trying to cross the pedestrian crossing at night, and when the detection sensor detects a pedestrian, it is automatically set based on the detection signal. A light emission start signal may be input to a road sign.

The type of the detection sensor is not particularly limited, but a pyroelectric infrared sensor capable of detecting the presence of a pedestrian by detecting a heat ray emitted from the pedestrian is preferable. An ultrasonic sensor that emits a sound wave and detects a reflected wave thereof, or an optical sensor that includes a light emitting element and a light receiving element that detect by blocking emitted light may be used.

A road sign is provided with the above-mentioned detection sensor for detecting a pedestrian crossing a pedestrian crossing at night and an illumination light. When the detection sensor detects a pedestrian, the illumination light is turned on. By illuminating the area around the pedestrian, it becomes easier for the pedestrian to walk, and the pedestrian's appearance can be seen by the driver as if it emerged, further raising the driver's attention, When the light emission start signal is input to the road sign by the push button switch, the surroundings are brightly illuminated by the illuminating light, so that the position of the push button switch can be easily found and pressed.

Further, the detection sensor may turn on an illumination lamp and also input a light emission start signal to a road sign. That is, a road sign is provided with a detection sensor that detects a pedestrian trying to cross a pedestrian crossing at night and an illumination light is provided. When the detection sensor detects a pedestrian, a light is emitted on the road sign based on the detection signal. The start signal may be input and the illuminator may illuminate the area around the pedestrian.

In addition to the above, a sound generator is provided for the road sign so that when the light emission start signal is input to the road sign, a sound such as "Let's check left and right and cross" is generated from the road sign. May be done.

A commercial power supply may be used as a power supply required for the light emission of the road sign and the road studs and other operations. However, it is simple to use a solar battery. It can be installed in places where it does not exist. That is, it is preferable that a road sign and a road stud are provided with a solar cell which generates electromotive force by receiving sunlight as a power supply circuit, and a power storage device which stores the electromotive force of the solar cell.

[0015]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing the operation of the road sign in FIG. 1, and FIG. 3 is a block diagram showing the operation of the road stud in FIG. is there.

In the drawings, reference numeral 1 denotes a crosswalk, which usually has a zebra pattern drawn on the road surface. Numerals 2 denote road signs which are respectively erected on both sides of the road in the vicinity of the pedestrian crossing 1, and the display panel 212 is attached to the support column 211 so as to face the vehicle. Are mounted. 3
A plurality of road studs are buried in the road surface along the pedestrian crossing 1, for example, along the lane markings of the pedestrian crossing 1, or as lane markings.
Are attached to the vehicle so as to face each other.

Further, the road sign 2 includes a push button switch 22 for inputting a light emission start signal, a transmission circuit 231 and a reception circuit 232 for transmitting and receiving the light emission start signal in the form of a radio wave, and trying to cross the pedestrian crossing 1 at night. Sensor 24 for detecting a walking pedestrian, an illuminating light 25 for illuminating the surroundings of the pedestrian, a sound generating device 26 for generating sound,
7, a power storage device 272 for storing the electromotive force of the solar cell 271 is provided, and the power of the power storage device 272 is supplied to blink the light emitting body 213 attached to the display panel 212 for a predetermined time. Lights and lights 2
5 is turned on, and a control circuit 28 for generating sound from the sound generating device 26 is provided.
The transmission circuit 231, the reception circuit 232, the sound generator 26, and the like are housed in a control box 281, and an antenna 29 for transmitting and receiving signals in the form of radio waves is provided above the control box 281.

The road stud 3 has a receiving circuit 32 for receiving a light emission start signal wirelessly transmitted from the road sign 2 in the form of a radio wave and a solar cell 331 as a power supply circuit 33.
And power storage device 3 for storing the electromotive force of solar cell 331
32, a control circuit 34 for supplying the electric power of the power storage device 332 to the light emitting body 31 to blink the light emitting body 31 for a predetermined time, an antenna 35 for receiving a signal in the form of a radio wave, and the like are provided. The antenna 35 does not protrude from the road surface.

With this configuration, the traffic safety system will be described with reference to FIGS. 2 and 3. In the road sign 2, first, the electromotive force of the solar cell 271 in the daytime is stored in the power storage device 272. When the detection sensor 24 of any of the road signs 2 detects a pedestrian in a predetermined area at night,
The control circuit 28 controls the power of the power storage device 272 to
And the illumination light 25 is turned on to illuminate the area around the pedestrian. Next, when the pedestrian presses the push button switch 22 of one road sign 2, a light emission start signal is input to the control circuit 28 of the road sign 2, and the control circuit 28 causes the power storage device 272.
Is supplied to the light emitter 213 of the road sign 2 and the sound generator 26 to cause the light emitter 213 to blink and emit light for a predetermined time, and the sound generator 26 emits sound. At the same time, the light emission start signal is converted into a signal in the form of a radio wave and transmitted from the transmission circuit 231 to other road signs 2 and road tacks 3 by radio. The other road sign 2 receiving the emission start signal in the form of a radio wave by the receiving circuit 232 causes the light emitter 213 to blink and emit light for a predetermined time, and the road stud 3 also causes the light emitter 31 to emit light.

That is, as shown in FIG. 3, the road stud 3 stores the electromotive force of the solar battery 331 in the daytime in the power storage device 332,
When the light emission start signal in the form of a radio wave is received by the reception circuit 32 and the light emission start signal is input to the control circuit 34, the control circuit 34 supplies the power of the power storage device 332 to the light emitter 31 of the road stud 3, The luminous body 31 blinks for a predetermined time to emit light.

Thus, by pressing the push button switch 22 and inputting a light emission start signal to one road sign 2, the road sign 2 starts blinking light emission,
The light emission start signal is wirelessly transmitted to the other road sign 2 and the road tack 3, and the light emission of the other road sign 2 and the road tack 3 is started together with the road sign 2.

In the above embodiment, the push button switch 2
2 is pressed to input a light emission start signal to one road sign 2, but a detection sensor 24 provided on the road sign 2 detects a pedestrian trying to cross the pedestrian crossing 1 at night. Then, a light emission start signal may be input to the road sign 2 based on the detection signal. In this case, the push button switch 22 can be omitted, and the user tries to cross the pedestrian crossing 1 at night. When the pedestrian is detected, both the road sign 2 and the road stud 2 automatically emit light for a predetermined period of time.

[0023]

According to the present invention, when a pedestrian crossing a pedestrian crossing at night is crossed, a road sign provided on both sides of the road near the pedestrian crossing and a lane marking of the pedestrian crossing are provided. A plurality of road studs installed along the road surface or as lane markings both emit light for a predetermined time, so that a driver traveling toward a crosswalk can easily recognize the presence of a pedestrian and draw attention. Thus, it is possible to effectively prevent accidents at pedestrian crossings. In addition, since both the road sign and the road stud emit light, the user is strongly alerted. When the pedestrian is not present, no light is emitted, so that economic loss is avoided.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram illustrating the operation of the road sign in FIG. 1;

FIG. 3 is a block diagram showing the operation of the road stud of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedestrian crossing 2 Road sign 211 Support column 212 Display board 213 Light emitting body 22 Push button switch 231 Transmission circuit 232 Receiving circuit 24 Detection sensor 25 Illumination light 26 Sound generation device 27 Power supply circuit 271 Solar cell 272 Power storage device 28 Control circuit 281 Control box 29 Antenna 3 Road tack 31 Light emitting body 32 Receiving circuit 33 Power supply circuit 331 Solar cell 332 Power storage device 34 Control circuit 35 Antenna

Claims (8)

[Claims] 1. A traffic safety system for encouraging a pedestrian trying to cross a pedestrian crossing at night to safely cross and alerting a vehicle traveling toward the pedestrian crossing. Road signs are respectively erected on both sides of the road in the vicinity of the sidewalk, and a plurality of road studs are buried on the road surface along the pedestrian crossing, and when the pedestrian crosses, both the road sign and the road stud emit light for a predetermined time. A traffic safety system characterized by being made to be performed. 2. A light emitting start signal is inputted to a road sign when a pedestrian crosses, a transmitting circuit and a receiving circuit are provided on the road sign, and a receiving circuit is provided on the road stud, respectively. Is input to the road sign, the light emission of this road sign is started, and the light emission start signal is wirelessly transmitted to the other road sign and the road stud, whereby the other road sign and the road stud are emitted. The traffic safety system according to claim 1, wherein light emission is started with the road sign. 3. The traffic safety according to claim 2, wherein a push button switch is provided on the road sign, and a light emission start signal is input to the road sign by closing the push button switch. system. 4. A road sign is provided with a detection sensor for detecting a pedestrian trying to cross a pedestrian crossing at night, and when the detection sensor detects a pedestrian, a light emission start signal is sent to the road sign based on the detection signal. 3. The traffic safety system according to claim 2, wherein the information is input. 5. A road sign is provided with a detection sensor for detecting a pedestrian trying to cross a pedestrian crossing at night and an illuminating light. When the detection sensor detects a pedestrian, the detection signal is provided based on the detection signal. The illumination light is adapted to illuminate the vicinity of the pedestrian.
The traffic safety system according to any one of the above. 6. A road sign is provided with a detection sensor for detecting a pedestrian trying to cross a pedestrian crossing at night and an illuminating light. When the detection sensor detects a pedestrian, it is based on the detection signal. 3. The traffic safety system according to claim 2, wherein a light emission start signal is input to the road sign and the illumination light illuminates the vicinity of the pedestrian. 7. The road sign according to claim 1, wherein a sound generator is provided on the road sign, and a sound is generated from the road sign when a light emission start signal is input to the road sign. The traffic safety system according to any one of the preceding claims. 8. A road sign and a road stud are provided with a solar cell which generates an electromotive force by receiving sunlight as a power supply circuit, and a power storage device which stores the electromotive force of the solar cell. The traffic safety system according to claim 1.