JP3453725B2 - Dating accident prevention device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intersection where a sub-line where a traffic signal is not installed and a main line intersect.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an encounter prevention device installed in front of an intersection in order to prompt a vehicle that is about to enter an intersection from a secondary line to stop. 2. Description of the Related Art Conventionally, in order to prevent an intersection accident at an intersection where a sub-line and a main line where no traffic signal is installed intersect, for example, a retroreflective material such as glass beads is generally provided before the intersection. A white stop line is drawn on the road surface with a resin marking material mixed with, and a sign board indicating characters such as "Stop" by a retroreflective material such as a reflective sheet stands on the side of the road Have been. The stop line and the signboard prompt the vehicle that is about to enter the intersection from the sub line to stop temporarily. However, a stop line drawn on a road surface is difficult for a driver to see at night or on a rainy day and may be overlooked. In particular, the stop line is worn by tires or the like. When it came, it was extremely difficult to see. In addition, the sign board which indicated characters such as "stop"
It shines brightly only when illuminated by the vehicle's headlights, etc.Therefore, in the case of a low beam with a low headlight angle and a short light reach, the signboard will illuminate unless the vehicle is very close to this signboard. It may be overlooked because it is not observed.Although this signboard reflects the light incident from the front well and is clearly visible to the driver, the light of the headlights especially at the curve points etc. When the light is incident on the sign board from an oblique direction, the light does not reflect well toward the driver, and is sometimes difficult to see for the driver. Thus, for the reasons described above,
Conventional stop lines and sign boards may not be able to effectively promote temporary stop of the vehicle. Therefore, the present invention solves the above-mentioned problems,
It is an object of the present invention to provide an encounter prevention device which is easy to see even at night or on a rainy day, and which can effectively encourage a vehicle to stop temporarily before an intersection. [0005] In order to achieve the above object, the present invention has the following arrangement. That is, the crossing accident prevention device according to the present invention is a crossing accident prevention device for urging the vehicle to stop temporarily before the intersection, and is embedded on the road surface just before the intersection to emit light and emit light to stop the vehicle. A luminous road sign indicating the temporary stop, a luminous sign plate attached above the road side edge near the luminous road sign and indicating a temporary stop, and having the luminous body attached thereto, a luminous road sign and a luminous sign A power supply device that supplies power to the board and emits light, a vehicle detection sensor that detects a vehicle entering an intersection, a day / night detection sensor that detects day / night, and a day / night detection sensor that detects a certain darkness and Only when the vehicle sensor detects the vehicle, power is supplied from the power supply to the illuminated road sign and the illuminated sign board to estimate the time when the vehicle will stop and then pass.
In addition, a control circuit is provided for causing the light emitting road marking body and the light emitting sign board to emit light or blink in association with each other for the assumed time . Next, an embodiment of the present invention will be specifically described with reference to the drawings. 1 is an explanatory view showing an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of FIG. 1, FIG. 3 is a configuration diagram showing one embodiment of a light-emitting road sign used in the present invention, 4 is a structural view showing another embodiment of the light emitting road marking body, FIG. 5 is a front view showing one embodiment of the light emitting sign plate used in the present invention, and FIG. 6 is a cross-sectional view showing another embodiment of the light emitting sign plate. is there. 1 and 2, reference numeral 1 denotes a sub line 11 and a main line 1.
2 is an example of an intersection where 2 intersects, 2 is a light-emitting road sign, and is buried on the road surface G along the stop line just before the intersection or instead of the stop line with the light-emitting surface 21 exposed on the ground surface. , The light emitting body 22 emits light to indicate the position where the vehicle 3 should stop. Reference numeral 4 denotes a light-emitting sign board, which is attached to an upper part of a support post 41 erected on the side of the road near the light-emitting road marking body 2 and has a sign 42 such as "stop" indicating a temporary stop on the surface thereof. At the same time, the light emitting body 44 is attached to emit light. Reference numeral 5 denotes a power supply device for supplying electric power to the light emitting road marking body 2 and the light emitting sign board 4 to emit light. [0008] Further, 6 is a vehicle 3 entering the intersection 1
Is a day and night detection sensor for detecting day and night. The vehicle detection sensor 6 is attached to the upper end of the light emitting sign board 4 so as to face the entering vehicle 3, and the day / night detection sensor 7 is also attached to the upper end of the light emitting sign board 4. Are respectively input to the control circuit 8 in the control box 81. When the day and night detection sensor 7 detects darkness and the vehicle detection sensor 6 detects the vehicle 3, and when both of these detection signals are input to the control circuit 8, the electric power is supplied from the power supply device 5 to the light emitting road marking body 2. The illuminated road surface sign 2 and the illuminated marker plate 4 are supplied to the illuminated marker plate 4 and are illuminated or flashed for a predetermined time in conjunction with each other. As described above, according to this embodiment, when the day / night detection sensor 7 detects a certain darkness and the vehicle detection sensor 6 detects the vehicle 3, the light emitting road sign 2 and the light emitting sign board 4 are linked. To emit light or flash,
For the driver of the vehicle 3 trying to enter the intersection 1 from the sub-line 11, when the vehicle 3 enters the detection area of the sensing sensor 6, the light-emitting road sign 2 and the light-emitting sign 4 suddenly disappear.
Since the light emission or blinking starts in conjunction with, the driver can be effectively alerted to the driver, and the suspension can be surely urged. Even at night or on a rainy day, the light-emitting road sign 2 and the light-emitting marker 4
Is easy to see. Further, only when the day and night detection sensor 7 detects a certain darkness and the vehicle detection sensor 6 detects the vehicle 3, the light emitting road sign 2 and the light emitting sign board 4 are made to emit light or blink. The power of the power supply can be saved. In the above embodiment, the light-emitting road marking body 2 is
For example, as shown in FIG. 3, a light-emitting body 22 such as a light-emitting diode or electroluminescence is encapsulated in a transparent or long protective body 23 in a dotted or linear manner, and the upper surface of the transparent and long protective body 23 is a light-emitting surface 21. With the light-emitting surface 21 exposed on the ground, the transparent long protective body 23 is buried in the road surface G along the stop line just before the intersection or instead of the stop line, and the light from the light-emitting body 22 is emitted from the light-emitting surface. The light may be emitted from the light source 21 in the form of a point or a line to indicate the position where the vehicle 3 should be stopped, or as shown in FIG. The transparent long protective tube 24 is inserted along the stop line immediately before the intersection with or without the light emitting surface 21 exposed on the surface of the ground. Buried on the road surface G instead of By emitting the light emitted from the outer circumferential surface of the tubular luminous body 22 linearly from the light emitting surface 21 may be as representative of the position to stop the vehicle. The tube-shaped luminous body 22 includes a flexible tube 25 and a core 26 housed in the flexible tube 25 and having a higher refractive index than the flexible tube 25.
When light is incident on one end face of the core 26 from a light source 27 such as a light emitting diode or a high-intensity lamp via a filter 28 or the like, the incident light is transmitted to the flexible tube 25 and the core. The light is reflected at the boundary surface with the core 26, and due to the repetition of the reflection, a part of the light is linearly emitted from the outer surface of the flexible tube 25 while being transmitted to the other end of the core 26. By using the tube-shaped light emitting body 22 that emits light linearly, the stop line can be clearly represented. Next, as shown in, for example, FIG. 1, and more specifically, FIG. 5, the luminescent marker plate 4 is provided with a sign 42 such as "stop" indicating a temporary stop on the surface of the marker plate body 43, and the surroundings thereof. A plurality of light-emitting bodies 44 such as light-emitting diodes may be arranged to emit light, and as shown in FIG. 6, a V-shaped groove may be formed on the back surface of the sign plate body 43 made of a transparent plate. A sign 42 such as "stop" is engraved by rough surface processing, a light emitting body 44 such as a light emitting diode is arranged around the sign board main body 43, and light of the light emitting body 44 is applied to the end of the sign board main body 43. Irradiated from the part into the sign plate main body 43, the sign 42 may be made to emit light,
Further, a device using a planar light-emitting body such as electroluminescence may be used. The power supply device 5 for supplying power to the light-emitting road marking body 2 and the light-emitting marker plate 4 to emit light includes:
A commercial power supply or a solar cell may be used. When a solar cell is used, a charger for charging the electromotive force of the solar cell and a controller for preventing overcharge and backflow are also used. The type of the vehicle sensor 6 is not particularly limited as long as it detects the vehicle 3 and outputs a detection signal when the vehicle 3 enters the detection area before the intersection 1. For example, a heat-sensitive type that detects the approaching state of the vehicle 3 by the heat generated by the vehicle 3, and a photoelectric type that emits light rays to the vehicle 3 and detects the light by reflection or interruption. , A Doppler radar type that emits a radio wave to the vehicle 3 and detects a frequency displacement or a displacement amount of a reflected radio wave by the vehicle 3, emits an ultrasonic wave to the vehicle 3, and measures a return time of the reflected wave by the vehicle 3. An ultrasonic type that detects a difference is appropriately applied. The day / night detection sensor 7 may be any sensor that detects day / night by detecting the surrounding darkness and outputs the detection signal. For example, an illuminance detection sensor using a photodiode or a photocell may be used. Is preferably used. The control circuit 8 includes the day / night detection sensor 7
When the vehicle detection sensor 6 detects the vehicle 3 and both of these detection signals are input to the control circuit 8, the power is supplied from the power supply device 5 to the light emitting road sign 2 and the light emitting sign board 4. , And controls the light emitting road marking body 2 and the light emitting sign board 4 to emit light or blink for a predetermined time in conjunction with each other, and is constituted by a lighting start circuit, a lighting circuit, a lighting circuit, a blink circuit, and the like. . It is preferable that the light emission or blinking be performed continuously for about 20 seconds, for example, assuming that the vehicle 3 will stop and then pass. As described above, according to this embodiment, when the day and night detection sensor detects a certain level of darkness and the vehicle detection sensor detects a vehicle, the light emitting road sign and the light emitting sign board are linked. Because it is made to emit light or blink, it is possible to effectively alert the driver of the vehicle trying to enter the intersection from the sub-line, it is possible to reliably prompt a pause, Even at night or on a rainy day, the light-emitting road marking body and the light-emitting sign board are easy to see.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing one embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of FIG. FIG. 3 is a configuration diagram showing one embodiment of a light-emitting road marking object used in the present invention. FIG. 4 is a configuration diagram showing another embodiment of a light-emitting road marking body. FIG. 5 is a front view showing one embodiment of a luminescent sign board used in the present invention. FIG. 6 is a cross-sectional view showing another embodiment of the luminescent sign board. [Description of Signs] 1 Intersection 11 Sub-line 12 Main line 2 Light-emitting road surface indicator 21 Light-emitting surface 22 Light-emitting body 23 Transparent long protective body 24 Transparent long protective tube 25 Flexible tube 26 Core 27 Light source 28 Filter 3 Vehicle 4 Light-emitting Sign plate 41 Support post 42 Mark 43 Sign plate main body 44 Light emitter 5 Power supply device 6 Vehicle detection sensor 7 Day / night detection sensor 8 Control circuit 81 Control box

Claims (1)

(57) [Claims] 1. An encounter prevention device for urging a vehicle to stop temporarily before an intersection, which is embedded on a road surface just before the intersection to emit light and stop the vehicle. A light-emitting road sign indicating a position to be provided, a light-emitting sign attached above the side edge of the road near the light-emitting road sign, indicating a temporary stop, and having a light-emitting body attached thereto; and a light-emitting road sign. A power supply device that supplies power to the illuminated sign board and emits light, a vehicle detection sensor that detects vehicles entering the intersection, a day / night detection sensor that detects day / night, and a day / night detection sensor Only when the vehicle is detected and the vehicle sensor detects the vehicle, power is supplied from the power supply to the light-emitting road sign and the light-emitting sign board, and the vehicle stops, and
At the expected time
And a control circuit for causing the light emitting road marking object and the light emitting sign board to emit light or blink in conjunction with each other.