JP3087026B2 - Pedestrian crossing lighting system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestrian crossing illumination device provided on a pedestrian crossing of a general road to alert pedestrians and vehicle drivers day and night.

[0002]

2. Description of the Related Art Conventionally, a pedestrian crossing sign indicating the presence of a pedestrian crossing without a traffic light is provided. This sign was used to draw the attention of the vehicle driver irrespective of the presence or absence of a pedestrian, and was illuminated at night for easy viewing.

However, at night, if the pedestrian wears dark clothes, the driver of the vehicle may be delayed in noticing the pedestrian.

[0004] Therefore, a vehicle detecting device for detecting a headlight beam of a vehicle and an illumination light for illuminating a pedestrian crossing are provided, and when the vehicle approaches the pedestrian crossing, the pedestrian crossing is illuminated and a vehicle driver is traversed. There has been proposed a pedestrian crossing illumination device that informs of the existence of a sidewalk (for example, see Japanese Utility Model Publication No. 2-19912).

[0005]

However, in such a conventional pedestrian crossing illumination device, although a pedestrian can be raised by an illumination lamp at night, the vehicle driver can be alerted. In the daytime, it does not have effective warning means, even if it is installed as a warning device,
There was a problem that only half of the day was alerting.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a pedestrian or vehicle that can be used day or night when a pedestrian approaches a pedestrian crossing or when a vehicle approaches. It is an object of the present invention to provide a pedestrian crossing lighting device that can alert a driver.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to achieve the above object, determine a solar cell, a battery to be charged by the solar cell, the day and night on the basis of the output of the solar cell A day / night discriminating circuit, a human sensor for detecting a pedestrian in the detected area, a vehicle sensor for detecting an approaching vehicle, and a wireless signal from a transmitting circuit of another pedestrian crossing lighting device provided opposite thereto. and receiving a receiving circuit, signal from the day and night discrimination circuit, signals from the human sensor, signals from the vehicle sensor, and a control circuit for outputting a directive signal based on the signal from the receiver circuit An illumination lighting circuit that performs illumination control based on a command signal from the control circuit; an illumination lamp that is controlled by the illumination lighting circuit to illuminate an area to be illuminated on a pedestrian crossing; Zu And a warning flasher circuit for flashing control Te,
A warning illuminator that flashes under the control of the warning flashing circuit;
And sound generating means for outputting a sound in accordance with a command signal from said control circuit, and a transmitter circuit for transmitting a radio signal in accordance with a command signal from the control circuit, the day and night determination
While the circuit is determined to be daytime, the human sensor
When a pedestrian is detected, the pedestrian crossing lighting device generates a sound.
Means and sound generation of said opposing other crosswalk lighting device
Emits a warning message to pedestrians by means of
In addition, the human sensor detects a pedestrian and the vehicle
When the sensor detects an approaching vehicle, both of the above sound generating hands
A warning message voice to the pedestrian by the stage, or
In addition, while the day and night discrimination circuit is determined to be night,
When the motion sensor detects a pedestrian, the pedestrian crossing is illuminated.
Lighting device of lighting device and said other opposing pedestrian crossing lighting device
Lights of the pedestrian crossing lighting system
Light beam toward the irradiated area of the lamp and the other crossing
Intersects with the beam of light from the road lighting device toward the area to be illuminated
And a warning illuminant of the pedestrian crossing lighting device and
With the warning illuminant of the other opposing pedestrian crossing lighting device
It is a crosswalk lighting device characterized by blinking .

[0008]

[0009]

[0010]

[0011]

[0012]

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a pedestrian crossing illumination device according to the present embodiment. FIGS. 2 and 3 are front and side views showing the outer shape of the device, and FIG. 4 is a sectional view of the device.

In the figure, a pedestrian crossing illuminating device denoted by reference numeral 1A includes a main body case 4 supported on a support 9 and an upper case 7.
, A solar battery 10, a battery 12, a day / night discriminating circuit 14, a human sensor 16, a vehicle sensor 18, a receiving circuit 20, a control circuit 22, a lighting lighting circuit 24, a lighting lamp 26,
Warning flashing circuit 28, warning light emitter 30, sound generator 3
2. The transmission circuit 36 is provided.

The main body case 4 is formed in a vertically long cylindrical shape from a metal plate material, and an illumination opening 5 is provided on an outer peripheral wall.
At the lower part of the main body case 4, a mount 6 for attaching to the column 9 is provided. In the upper part of the main body case 4,
A cylindrical upper case 7 having an inclined upper end surface is provided with a shaft 8
To be rotatable on a horizontal plane.

The solar cell 10 generates power by receiving sunlight, and the electric power is charged to the battery 12 via the charging circuit 11. The solar cell 10 is attached to the upper part of the upper case 7 at an angle of about 45 degrees with respect to the horizontal plane, and is formed so that the light receiving direction can be adjusted by rotating the upper case 7 about the axis 8.

The battery 12 is composed of a lead storage battery and is charged by the solar cell 10. The power of the battery 12 is supplied to each circuit such as the control circuit 22 via the over-discharge prevention circuit 13 and to each of the circuits such as the illumination lamp 26. It is formed so as to be supplied to the alerting means. The battery 12 may be an alkaline storage battery or an electric double layer capacitor.

The day / night discrimination circuit 14 discriminates between daytime and nighttime based on the electromotive voltage of the solar cell 10 and outputs a discrimination signal A to the control circuit 22.

The human sensor 16 is composed of a pyroelectric infrared sensor that captures far infrared rays emitted from the human body and outputs a detection signal B. The human sensor 16 is mounted on the mount 6 below the main body case 4 via an annular support frame 17. It is provided so that the detection direction can be adjusted by rotating on a horizontal plane.

As shown in FIG. 5, for example, the motion sensor 16 has a detection area 52 on a sidewalk 51 at one end of a crosswalk 50.
a (detected area 52b in the pedestrian crossing illumination device 1B described later) is set and fixed as the detection target range. When a pedestrian enters the detected area 52a, the pedestrian is detected and a detection signal B is output to the control circuit 22.

The vehicle sensor 18 is a highly directional pyroelectric infrared sensor that captures far infrared rays emitted from the vehicle 58 approaching the pedestrian crossing 50 and outputs a detection signal C. The lower mount 6 is provided so as to be rotatable on a horizontal plane via an annular support frame 19 so that the detection direction can be adjusted. And, the vehicle 50 is the vehicle sensor 1
When it arrives at a predetermined position in front of, for example, about 50 m, it is detected and a detection signal C is output to the control circuit 22. The human sensor 16 and the vehicle sensor 18 may be ultrasonic sensors that detect reflected waves of the transmitted ultrasonic pulse.

The receiving circuit 20 is provided with a radio wave (frequency f) transmitted from another pedestrian crossing illumination device 1B installed opposite thereto.
₂ ) is received, and a reception signal D corresponding to the transmitted command signal d is output to the control circuit 22. Reference numeral 21 denotes a receiving antenna.

The control circuit 22 includes a comparator for detecting the presence / absence of the discrimination signal A, the detection signal B, the detection signal C, and the reception signal D, and a command signal, that is, an illumination lighting circuit 24 in accordance with the presence or absence of each signal. , A command signal b to the warning flashing circuit 28, a command signal c ₁ or c ₂ to the sound generation means 32,
It comprises a command control section for outputting a command signal d to the transmission circuit 36 for a predetermined time.

Then, each signal A,
B, C, D and output command signals a, b, c ₁ , c ₂ , d
Is formed to operate in the following relationship, for example.

The discrimination signal A of the day / night discrimination circuit 14 is "daytime".
In the case of, when the detection signal B of the human sensor 16 is “ON” and the detection signal C of the vehicle sensor 18 is “OFF”, the command signal c ₁ is output to the voice synthesis circuit 33 and the transmission circuit 36
To the command signal d corresponding to the command signal c ₁ is output.

When the detection signal B is “ON” and the detection signal C is “ON”, the command signal c ₂ is output to the voice synthesizing circuit 33 and the transmission circuit 36 corresponds to the command signal c ₂ . The command signal d is output.

Further received signal D from the receiving circuit 20 receives the command signal c ₁ or c ₂ other crosswalk lighting device 1B side to the control device 22, it corresponds command signal for the apparatus 1A controls and outputs the c ₁ or c _2. When the detection signal B is "OFF", no command signal is output even when the detection signal C is "ON".

The discrimination signal A of the day / night discrimination circuit 14 is "night".
In this case, when the detection signal B of the human sensor 16 is "ON", the command signal a and the command signal b are output to the illumination lighting circuit 24 and the warning blinking circuit 28, respectively. The transmission circuit 3
6, a command signal d corresponding to the command signals a and b is output. On the other hand, the received signal D from the receiving circuit 20 is such that the command signals a and b of the other pedestrian crossing lighting device 1B are input to the control device 22, and the command signals a and b for controlling the device 1A are correspondingly input thereto. Output. Also, in the "night", even if the detection signal C from the vehicle sensor 18 is "ON", the corresponding command signal is not output.

The illumination lighting circuit 24 is configured to light the illumination lamps 26, 26 based on a command signal a from the control circuit 22.

In the present embodiment, the illuminating lamp 26 is composed of an incandescent light bulb with a reflector, and two illuminating lamps 26 are vertically arranged in the main body case 4 so that the illuminating lamp 26 can be illuminated at night as shown in FIGS. It is formed so as to irradiate the irradiation area 54a. Note that a protective cover for flying objects is provided in the illumination opening 5 on the front of the illumination lamps 26, 26 of the main body case 4.

The warning blinking circuit 28 is configured to blink a plurality of warning light emitters 30 based on a command signal b of the control circuit 22 and to operate simultaneously with lighting of the illumination lamp 26.

The warning illuminant 30 is composed of a high-brightness light emitting diode.
8 are arranged in a row in the vertical direction on the outer peripheral wall of the main body case 4 on the side from which the reference numeral 8 comes.

The voice generating means 32 comprises a voice synthesizing circuit 33 and a speaker 34, and outputs a synthesized voice corresponding to the command signal c ₁ or the command signal c ₂ from the control circuit 22, respectively. Have been. The speech synthesis circuit 33 is, for example, to output the caution message "Let's over a good look at the left and right" in response to a command signal c _1, by a command signal c ₂ a warning message "vehicle approaching in! Be careful." It is configured to output.

The transmission circuit 36 transmits a radio wave (frequency f ₁ ) corresponding to the command signal d from the control circuit,
It is configured to transmit via an antenna 37.

The day / night determining circuit 14, the receiving circuit 20,
Control circuit 22, illumination lighting circuit 24, illuminant blinking circuit 2
8. Electronic circuits such as the transmission circuit 36 are formed on the circuit board 40 and disposed in the upper case 7. Battery 1
2. The voice generating means 32 is waterproofed and
It is arranged in.

The pedestrian crossing illumination device 1A of the present invention is installed at one end of the pedestrian crossing 50.
Two types are set, a pedestrian crossing illumination device 1B (hereinafter, abbreviated as a device 1B) installed opposite to the other end of the pedestrian crossing 50 (hereinafter, abbreviated as a device 1A).

The only difference between the apparatus 1B and the apparatus 1A is the difference between the reception frequency of the reception circuit 20 and the transmission frequency of the transmission circuit 36. For example, the receiving circuit 2 of the device 1A
0 is set to the reception frequency f _2, the transmitting circuit 36 is set to the transmission frequency f _1. The receiving circuit 20 of the apparatus 1B is set to the reception frequency f _1, transmitting circuit 36 is set to the transmission frequency f _2. Then, both devices 1A, 1
Operation signals are mutually transmitted and received between B, and both are operated simultaneously according to a command from the control circuit 22 on one side.

The pedestrian crossing illumination device 1 configured as described above
A and 1B are installed on pillars 9 and 9 erected on sidewalks 51 and 51 at both ends of the crosswalk 50, respectively.

FIG. 5 shows the installation state, and the apparatus 1A
The illuminating lamps 26, 26 are located near the other end of the pedestrian crossing 50.
It is installed so as to irradiate the irradiated area 54a in the range of slightly over / 2. The human sensor 16 is fixed by setting a detection area 52a on a sidewalk 51 at one end of the pedestrian crossing 50, and the vehicle sensor 18 is fixed toward the vehicle arrival direction of the road on the side where the device 1A is installed.

As shown in FIG. 5, the apparatus 1B includes an irradiation area 54 having a little more than half the area near one end of the pedestrian crossing 50.
b. The human sensor 16
Is fixed by setting a detection area 52b on the sidewalk 51 on the other side of the crosswalk 50, and the vehicle sensor 18 is fixed toward the vehicle arrival direction on the installation side roadway. Therefore, the beam of light 56a emitted from the lighting lamps 26, 26 of the device 1A and the beam of light 56b emitted from the lighting lamps 26, 26 of the device 1B intersect at the center of the pedestrian crossing as shown in FIG. An area with a large amount of light is formed.

Next, the operation of the crosswalk lighting devices 1A and 1B will be described.

Each of the devices 1A and 1B charges the battery 12 with the electromotive force of the solar cell 10 during the daytime when the amount of solar radiation is large, and the day / night discrimination circuit 14 outputs the discrimination signal A of "daytime" to the control circuit 22.
Output to

When the pedestrian enters the detection area 52a to cross the pedestrian crossing 50, the human sensor 16 of the device 1A captures the far infrared rays emitted from the pedestrian and outputs a detection signal B. . In response to this, the control circuit 22 outputs the command signal c ₁ and the corresponding command signal d to the voice synthesis circuit 33 and the transmission circuit 36, respectively.

As a result, in the apparatus 1A, the voice synthesizing circuit 33 operates to output a caution message, and the speaker 34 outputs a voice saying "Let's look at the left and right well and cross over." The transmitting circuit 36 transmits from the antenna 37 a command signal d at the frequency f _1.

In the apparatus 1B, the radio wave of the frequency f ₁ is received by the receiving circuit 20 via the antenna 21, and the received signal D corresponding to the command signal d (corresponding to the command signal c ₁ ) is output to the control circuit 22. You. Then, the control circuit 22 outputs the instruction message c _{1 to} the voice synthesizing circuit 33 of the device 1B, and outputs the above-mentioned caution message voice from the speaker 34. Therefore, by detecting the device 1A on one side,
The devices 1A and 1B on both sides simultaneously perform the same operation.

When the human sensor 16 detects a pedestrian and outputs a detection signal B, and the vehicle sensor 18 captures far infrared rays emitted from the approaching vehicle 58 and outputs a detection signal C, The control circuit 22 outputs a command signal c ₂ ,
And a command signal d corresponding thereto,
And output to the transmission circuit 36. This allows the device 1A
Outputs a warning message voice saying “While approaching a vehicle!
6 transmitted from the antenna 37 a command signal d at the frequency f _1.

In the apparatus 1B, the radio wave of the frequency f ₁ is received by the receiving circuit 20, and a received signal D corresponding to the command signal d (corresponding to the command signal c ₂ ) is output to the control circuit 22. and it outputs the above-described warning message audio from the speaker 34 of the apparatus 1B as a command signal c _2.

When no pedestrian is detected in the detected area 52a (when the detection signal B is off), even if the vehicle 58 is approaching and the vehicle sensor 18 outputs the detection signal C, the control circuit No command signal is output from the terminal 22.

When the amount of solar radiation decreases and the electromotive voltage of the solar cell 10 falls below a certain voltage, the day / night discrimination circuit 14 outputs a “night” discrimination signal A to the control circuit 22. And the device 1
When the human sensor 16 of A detects a pedestrian in the detection area 52a, a detection signal B is output to the control circuit 22, and the control circuit 22 outputs the command signals a and b and the command signal d corresponding thereto to the illumination. It outputs to the lighting circuit 24, the warning flashing circuit 28, and the transmission circuit 36. As a result, the lighting circuit 24 turns on the lighting lights 26 and 26, and the lighting lights 26 and 26
is emitted to irradiate the irradiated area 54a. The warning flashing circuit 28 flashes the plurality of warning light emitters 30 and transmits a flashing sign to call attention to the driver of the vehicle 58 approaching the roadway on the near side. The transmitting circuit 36 transmits from the antenna 37 a command signal d at the frequency f _1.

In the apparatus 1B, a radio wave of the frequency f ₁ is generated by the receiving circuit 20, and a received signal D corresponding to the command signal d (corresponding to the command signals a and b) is output to the control circuit 22. The signals a and b are output to the illumination lighting circuit 24 and the warning blinking circuit 28 of the device 1B.

Then, the lighting lighting circuit 24 of the device 1B
The illumination lamps 26, 26 are turned on, and the illumination lamps 26, 26 emit light beams 56b to irradiate the irradiated area 54b. The light beam 56b intersects with the light beam 56a of the device 1A at the center of the pedestrian crossing 50, and forms a region with a large amount of light at the center to make the traverser clearly emerge. The warning flashing circuit 28 of the apparatus 1B flashes the warning light emitter 30 and transmits a flashing sign toward the other side of the road.

In the "night", the vehicle sensor 1
8 detects the vehicle 58 and outputs the detection signal C, the control circuit 22 does not output the corresponding command signal, and therefore,
The devices 1A and 1B respond only to the detection signal B and the reception signal D.

Regardless of “daytime” or “nighttime”, the device 1B on the opposite side detects the pedestrian or the vehicle 58 and the device 1A
Does not detect them, the subject of the action and the dependency are reversed from those described above. When both devices 1A and 1B simultaneously detect, they operate in parallel at the same time.

It should be noted that the present invention is not limited to the above description and examples of the drawings, and the embodiments thereof can be modified without departing from the technical idea of the present invention. For example, the device is configured by omitting the vehicle sensor 18,
The voice generating means 32 may output only one type of message.

The area to be illuminated by the illumination lamps 26, 26 may be formed by irradiating the entire pedestrian crossing with one device 1A. In this case, the other device 1B is set to irradiate the entire pedestrian crossing. Also device 1
The illuminating lights 26 and 26 of A and 1B may irradiate the area of almost half of the side of the pedestrian crossing near the device installation side, and may irradiate the entire pedestrian crossing.

Further, the pedestrian crossing illumination device of the present invention may be configured such that the receiving circuit 20 and the transmitting circuit 36 are omitted, and the pedestrian crossing lighting device operates independently on both sides of the pedestrian crossing. In this configuration, the illuminating lamp of one device is set to illuminate the entire pedestrian crossing.

[0058]

Since the pedestrian crossing illumination device of the present invention is configured as described above, when a pedestrian approaches the pedestrian crossing in the daytime, the pedestrian is alerted by voice, and the pedestrian crossing is illuminated at night. The pedestrian can be illuminated to alert the vehicle driver.

Further, the one provided with the vehicle sensor can switch the voice output to the pedestrian into a caution message and a warning message depending on the presence or absence of the approaching vehicle, thereby further alerting the pedestrian.

In the case where the light beam of the illuminating light of the pedestrian crossing lighting device and the light beam of the illuminating light of the pedestrian illuminating device provided opposite to each other are provided, By forming an area with a large amount of light in the center part, it is possible to make the traversing person clearly stand out.

Further, in the apparatus provided with the receiving circuit and the transmitting circuit, a pair of pedestrian crossing lighting devices provided at both ends of the pedestrian crossing operate in conjunction with each other to further draw attention to pedestrians and vehicle drivers. can do.

Further, since the illumination lamp, the warning illuminant, and the sensors are integrally formed and a commercial power supply is not used, the installation of the apparatus is easy and the underground wiring can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a pedestrian crossing illumination device according to an embodiment of the present invention.

FIG. 2 is a front view showing the outer shape of the pedestrian crossing illumination device.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 2;

FIG. 5 is a perspective view showing an installation state of the apparatus.

FIG. 6 is a front view of the installation state as viewed from arrow B in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A, 1B Pedestrian crossing illumination device 10 Solar cell 12 Battery 14 Day / Night discriminating circuit 16 Human sensor 18 Vehicle sensor 20 Receiving circuit 22 Control circuit 24 Lighting lighting circuit 26 Illumination lamp 28 Warning flashing circuit 30 Warning illuminant 32 Sound generating means 36 Transmission circuit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-288300 (JP, A) JP-A-9-219107 (JP, A) JP-A-6-318295 (JP, A) JP-A-6-318295 173227 (JP, A) JP-A-4-215293 (JP, A) JP-A-8-329386 (JP, A) JP-A-4-322400 (JP, A) Japanese Utility Model Laid-Open No. 60-140198 (JP, U) Japanese Utility Model Application Hei 7-41697 (JP, U) Japanese Utility Model Application Hei 2-19912 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F21S 8/08 G08G 1/09 G08G 1/095

Claims (1)

(57) [Claims] A solar battery; a battery charged by the solar battery; a day / night determining circuit for determining day / night based on an output of the solar battery; a human sensor for detecting a pedestrian in a detected area; A vehicle sensor that detects an approaching vehicle, a receiving circuit that can receive a wireless signal from a transmission circuit of another pedestrian crossing illumination device provided opposite to the vehicle sensor, a signal from the day / night determination circuit, signal, signal from the vehicle sensor, and a control circuit for outputting a directive signal based on the signal from the receiving circuit, a lighting ballast circuit for lighting control in accordance with a command signal from said control circuit, said An illumination lamp controlled by a lighting circuit to illuminate an area to be illuminated on a pedestrian crossing; a warning flashing circuit performing flashing control based on a command signal from the control circuit; and a flashing controlled by the warning flashing circuit. A warning illuminator, a sound generating means for outputting a sound based on a command signal from the control circuit, and a transmitting circuit for transmitting a radio signal based on a command signal from the control circuit , the day / night discriminating circuit. During the day is determined by the above
When the motion sensor detects a pedestrian, the pedestrian crossing lighting
Sound generating means and the other pedestrian crossing lighting device opposite
Warning message to pedestrians by means of voice
Utters a voice, and when the motion sensor detects a pedestrian,
When the vehicle sensor detects an approaching vehicle,
Warning message for pedestrians by means of voice generation means
Emits also been determined that night by the day and night discrimination circuit
While the motion sensor detects a pedestrian,
Illumination light of a road lighting device and the other pedestrian crossing light opposite thereto
Turn on the lighting of the device together, and
The beam of light toward the irradiated area of the illumination lamp and the other side
The light beam of the illumination light of the sidewalk lighting system toward the irradiated area
Crossing and warning illuminator of the crosswalk lighting device
And the warning illuminant of the other opposing pedestrian crossing lighting device
A pedestrian crossing lighting device characterized by blinking together .