KR20210044454A - Road signs having traffic information display function using color change - Google Patents

Abstract

The present invention relates to a road sign having a traffic information display function using a color change, comprising: a basic frame; a first light-emitting module mounted on the basic frame to include two or more light-penetrating plates piled up to receive the light irradiated by an LED installed on a side surface and to scatter the light forward; a second light-emitting module mounted on the basic frame to include two or more light-penetrating plates piled up to receive the light irradiated by LEDs having different colors from each other and to scatter the light forward; a display unit mounted on the basic frame to let the light received from the first light-emitting module and the second light-emitting module penetrate and to provide the driver with traffic information; and a control unit which transmits a blinking signal to the LEDs installed on the second light-emitting module to have different colors from each other.

Description

Road signs with traffic information display function through color implementation {ROAD SIGNS HAVING TRAFFIC INFORMATION DISPLAY FUNCTION USING COLOR CHANGE}

The present invention relates to a road sign having a function of displaying traffic information by implementing colors.

Road signs are installed on the road for the convenience and safety of the driver, and may be divided into direction signs, signposts, landmarks, and route signs.

In general, road signs are required to have visibility for the driver's safety, and are constructed by bonding high-brightness reflective paper in multiple layers on a prominent green or blue aluminum plate. Visibility is secured by scattering from high-luminance reflective areas.

However, since the reflective paper can reflect light only when a light source, such as a street light or a car headlight, exists, there is a problem that a predetermined purpose cannot be achieved in a place where a street light does not exist or a street light is broken.

In order to improve this problem, road signs using an LED backlight are sometimes provided. In the case of using the LED backlight, there is a problem in that power consumption compared to brightness required for securing visibility is excessive.

In order to reduce power consumption, an LED is installed on the side and the light irradiated from the side is emitted to the front using a light guide plate.In the case of the side LED irradiation method, power consumption can be minimized, but visibility is secured. There is a disadvantage in that it is difficult to obtain the necessary brightness.

Meanwhile, a road sign using an LED backlight increases visibility by using a backlight on the back of a predetermined character sign, and separate from this, an electric sign system is also installed to provide variable real-time traffic information.

However, such an electric signboard system consumes a lot of power, is very expensive, and has considerable size and weight, and is difficult to install and operate.

As described above, various methods are applied in operating road signs, and while securing optimal brightness using minimum power, installation and operation are easy, and real-time traffic information can be provided with low cost burden. As the demand for road signs is considerable, the inventors have come to invent a road sign capable of solving these problems.

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-2013-0010333 A (2013.01.28)

The present invention is to solve the above-described problem, and to secure improved visibility compared to existing road signs even at low power, and to display traffic information through color realization that can provide real-time traffic information at low cost compared to an electric sign using a simple module. Its purpose is to provide road signs with functions.

A road sign having a traffic information display function through color realization according to an embodiment of the present invention includes a basic frame; A first light-emitting module mounted on the basic frame and having two or more light-transmitting plates stacked to receive light irradiated from an LED installed on a side surface and scatter light to the front; A second light-emitting module mounted on the basic frame, installed on a side surface, and having two or more light-transmitting plates stacked to receive light irradiated from LEDs having different colors and scatter to the front; A display unit mounted on the basic frame and transmitting light supplied from the first light emitting module and the second light emitting module to provide traffic information to a driver; And a control unit for transmitting a blinking signal to LEDs having different colors installed in the second light emitting module.

The display unit includes a background section formed of an opaque material, a variable character section and a variable color section through which a transparent material is formed, and the second light emitting module is installed at a position corresponding to the variable color section, and the The first light-emitting module is installed at a position corresponding to the variable character section, and further includes two or more character display panels that are rotatably installed on the basic frame and selectively exposed through the variable character section, and the control unit includes the You can control the rotation of the character display panel.

The first light-emitting module includes: a first upper light-transmitting plate formed of a transparent or translucent material to allow light to pass therethrough, and having a plurality of first upper light guide grooves engraved on a bottom surface to guide light scattering in a plane direction; It is formed in a shape and material corresponding to the first upper light-transmitting plate, and a plurality of first lower light guide grooves are engraved on the bottom surface to guide light scattering in a plane direction, and the plane thereof is the first upper light-transmitting plate A first lower light-transmitting plate coupled to the bottom surface of the; A first light-transmitting frame surrounding both side ends of the first upper light-transmitting plate and the first lower light-transmitting plate; A first LED embedded in the first light-transmitting frame and supplying light from side surfaces of the first upper light-transmitting plate and the first lower light-transmitting plate; And a first reflecting plate installed on a bottom surface of the first lower light-transmitting plate and reflecting light irradiated from the LED upwardly.

The second light-emitting module includes: a second upper light-transmitting plate formed of a transparent or translucent material to transmit light, and having a plurality of second upper light guide grooves engraved on a bottom surface to guide light scattering in a plane direction; It is formed in a shape and material corresponding to the second upper light-transmitting plate, a plurality of second lower light guide grooves are engraved on the bottom surface to guide light scattering in a plane direction, and the plane thereof is the second upper light-transmitting plate A second lower light-transmitting plate coupled to the bottom surface of the; A second light-transmitting frame surrounding both side ends of the second upper light-transmitting plate and the second lower light-transmitting plate; A pair of LEDs built into the second light-transmitting frame and supplying light from side surfaces of the second upper light-transmitting plate and the second lower light-transmitting plate; And a second reflecting plate installed on a bottom surface of the second lower transmissive plate to reflect light irradiated from the LED upward.

The first LED is installed at a position corresponding to a boundary line between the first upper light-transmitting plate and the first lower light-transmitting plate, and the first upper light guide groove and the first lower light guide groove are formed at positions corresponding to each other in a vertical direction. I can.

The pair of LEDs may include a second upper LED installed at a position corresponding to the second upper light-transmitting plate in a horizontal direction to supply light; And a second lower LED installed at a position corresponding to the second lower transmissive plate in a horizontal direction to supply light, and the second upper LED and the second lower LED may be implemented in different colors.

A plurality of second upper light guide grooves are formed, and the distance from the second upper LED in a horizontal direction is formed at a denser interval, and a plurality of the second lower light guide grooves are formed, horizontally with the second lower LED. It is formed at a denser interval as the distance increases in the direction, and the second upper LED and the second lower LED may be positioned in a direction facing each other.

According to a road sign having a traffic information display function through the color implementation of the present invention, it is possible to secure improved visibility compared to existing road signs even with low power consumption, and to provide real-time traffic information at a lower cost compared to an electric sign using a simple module. There is this.

1 is a perspective view of a road sign having a traffic information display function through color implementation of the present invention,
2 is a cross-sectional view of a first light-emitting module that is an integral part of the present invention,
3 is a cross-sectional view of a second light emitting module that is an essential part of the present invention,
4 is a diagram showing an installation state of a character display panel, which is an essential part of the present invention

Hereinafter, a road sign having a traffic information display function through color realization according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various different forms, and the following description is provided to completely inform the scope of the invention.

As shown in FIG. 1, a road sign having a traffic information display function through color implementation of the present invention includes a basic frame F, a first light emitting module 100, a second light emitting module 200, and a display unit 300. ) And a control unit 400.

The basic frame (F) is a configuration for embedding the first light-emitting module 100, the second light-emitting module 200, and the display unit 300, which will be described later, and may be formed in the shape of a square frame with one side open or a center penetrating it. have.

The first light-emitting module 100 is installed inside the basic frame F, in which two or more light-transmitting plates 110 and 120 are stacked to receive light irradiated from the first LED 140 installed on the side and scatter it to the front. It is manufactured in the form.

The second light-emitting module 200 is mounted inside the basic frame F separately from the first light-emitting module 100, is installed on the side, and receives light irradiated from the LEDs 240 and 250 having different colors to the front. Two or more light transmitting plates to be scattered are manufactured in a stacked form.

The light scattered from the first light emitting module 100 and the second light emitting module 200 is irradiated to the front through the display unit 300, thereby providing traffic information such as a destination and a traffic situation to the driver.

The control unit 400 transmits a blinking signal so that the LEDs 240 and 250 having different colors installed in the second light emitting module 200 blink selectively or simultaneously blink. A separate sensor (not shown) may be installed to receive a flashing signal from the control unit 400 and flash the LEDs 240 and 250, and the control unit 400 may receive information on traffic conditions from various means such as commercial navigation. By receiving the transmission, the LEDs 240 and 250 of the second light emitting module 200 described above may be flashed.

1 to 3, the display unit 300 of the present invention may be divided into a background section 310, a variable character section 320, and a variable color section 330.

The background section 310 corresponds to the background of the road sign and is an area where no separate traffic information is displayed. This background section 310 is formed of an opaque material.

The variable character section 320 and the variable color section 330 are areas in which traffic information is displayed and are formed of a transparent material. In the case of the variable text section 320, a destination or a waypoint is an area representing text, and the variable color section 330 may be defined as an area representing a traffic condition through color implementation. For example, when the variable color section 330 is implemented in red, it means that traffic is congested, when it is implemented in blue, it means that traffic communication is smooth, and when it is implemented in yellow, it indicates a normal traffic situation. Can be understood.

The character display implemented in the variable character section 320 may be generally two or more different character displays, and two or more character display panels C may be installed in order to implement different character displays (see FIG. 4 ). ) That is, by selectively exposing two or more character display panels C through the variable character section 320 formed by a transparent material or through the display unit 300, it is possible to provide traffic information to the driver. .

In order to selectively expose two or more character display panels C, two character display panels C may be rotatably installed inside the basic frame F. That is, one side of each of the two character display panels (C) on which different characters are displayed form a predetermined angle, and the coupling portion and the basic frame (F) are connected via a rotation bar (B), but the rotation bar ( When one end of B) is hinged to the basic frame F, different characters are exposed to the outside through the variable character section 320 while the character display panel C rotates. The rotation of the character display panel C may be possible by the control unit 400 that controls a motor (not shown) and a sensor (not shown).

The first light emitting module 100 is installed at a position corresponding to the variable character section 320 described above, thereby improving visibility.

The first light-emitting module 100 includes a first upper light-transmitting plate 110, a first lower light-transmitting plate 120, a first light-transmitting frame 130, a first LED 140, and a first reflecting plate 150. I can.

The first upper light-transmitting plate 110 and the first lower light-transmitting plate 120 irradiate the light supplied from the first LED 140 to the front, and for this purpose, the first upper light-transmitting plate 110 and the first lower light-transmitting plate A first upper light guide groove 110a and a second lower light guide groove 120a are formed on the bottom surface of the plate 120, respectively.

The first upper light guide groove 110a and the second lower light guide groove 120a may be formed in an intaglio on the first upper light transmitting plate 110 and the first lower light transmitting plate 120, respectively, and have a hemispherical shape or a semi-elliptic shape. Can be formed. The light projected from the first LED 140 through one side of the first upper light-transmitting plate 110 and the first lower light-transmitting plate 120 is the first upper light guide groove 110a and the second lower light guide groove 120a. By scattering along the boundary of each, it is emitted through the front.

In this way, when light is scattered and emitted by stacking the first upper transmissive plate 110 and the first lower transmissive plate 120, soft light having a uniform illuminance is used, compared to the case of using a single transmissive plate having the same thickness. Since is released, there is an advantage in that eye fatigue is reduced and visibility can be further improved.

It is preferable that the first LED 140 be positioned at a position corresponding to the boundary line between the first upper transmissive plate 110 and the first lower transmissive plate 120. When an LED that irradiates light is disposed on one side of the first upper transmissive plate 110 and the first lower transmissive plate 120, more LEDs (L) must be installed than necessary, resulting in an increase in cost and power consumption. There is a problem that is excessive.

If the LED is installed only at the position corresponding to the first upper transmissive plate 110, the meaning of installing the first lower transmissive plate 120 is faded, and the LED is installed only at the position corresponding to the first lower transmissive plate 120. In the case of installation, there is a problem in that visibility is lowered due to interference of the first upper transmissive plate 110.

When the first LED 140 is disposed along the boundary line of the first upper transmissive plate 110 and the first lower transmissive plate 120, predetermined light is transmitted to the first upper transmissive plate 110. Light scattered and emitted through the groove 110a and supplied to the first lower light-transmitting plate 120 is the second lower light-guide groove 120a and the first upper light-guide groove 110a formed in the first upper light-transmitting plate 110 ) Through the scattering and emission bar, it is possible to obtain the effect of dramatically improving visibility with a minimum installation cost.

In order to maximize the above-described effect, the first upper light guide groove 110a and the second lower light guide groove 120a are preferably formed at positions corresponding to each other in the vertical direction. That is, when light passing through the second lower light guide groove 120a is directly guided to the first upper light guide groove 110a, light can be intensively emitted.

The first reflective plate 150 reflects light, and may be provided in the form of, for example, a reflective film or a reflective coating layer, and is disposed under the first lower transmissive plate 120, and the first lower transmissive plate (120) It may be attached to the bottom surface.

The first light-transmitting frame 130 includes a first upper light-transmitting plate 110, a first lower light-transmitting plate 120, a first LED 140, and a first reflecting plate 150, and includes these configurations. The first light emitting module 100 may be formed in a frame shape having a cross section of "⊂" so as to wrap around the edge.

The first light-transmitting frame 130 is preferably made of an aluminum alloy that is advantageous in reflecting light, has excellent heat dissipation, and has excellent corrosion resistance against moisture, and the inner circumferential surface thereof is further coated with a reflective layer that is advantageous for light reflection. desirable.

It is preferable to seal the bonding portion between the first transmissive frame 130 and the first upper transmissive plate 110 using a first sealing member (S1) made of an opaque material to improve water tightness and prevent light transmission. , It is preferable to seal the inside of the first light-transmitting frame 130 by using a second sealing member (S2) so as to transmit light, and to seal the first LED (140).

The first sealing member S1 seals the gap between the first light-transmitting frame 130 and the first upper light-transmitting plate 110 to prevent a decrease in the life of the LED due to exposure of the electric circuit to moisture. It prevents light from leaking out through the gap between the light transmitting frame 130 and the first upper light transmitting plate 110.

The second sealing member S2 functions to prevent malfunctions and failures by preventing the LED from being exposed to moisture even if moisture is introduced due to damage or abrasion of the first sealing member S1. The second sealing member (S2) is formed of a transparent material so that the light generated from the LED can be transmitted, but is formed of a heat-resistant resin whose heat resistance temperature is higher than the LED heating temperature in consideration of discoloration and deformation due to heat generated from the LED. It is desirable.

On the other hand, the second light-emitting module 200, which is an integral part of the present invention, includes a second upper light-transmitting plate 210, a second lower light-transmitting plate 220, a second light-transmitting frame 230, a pair of LEDs 240 and 250, and It includes two reflective plates 260. The second light-emitting module 200 has the same configuration as the first light-emitting module 100 described above, and the second upper light-transmitting plate 210, the second lower light-transmitting plate 220, the second light-transmitting frame 230, The second reflective plate 260 corresponds to the first upper transmissive plate 110, the first lower transmissive plate 120, the first transmissive frame 130, and the first reflective plate 150, respectively. Among the configurations of the module 200, the configuration of the first light emitting module 100 and the configuration that is different from that of the first light emitting module 100 will be described.

A second upper light guide groove 210a is formed on the bottom surface of the second upper light-transmitting plate 210 constituting the second light-emitting module 200, and a second lower light guide groove ( 220a) is formed, and the second upper LED 240 is installed at a position corresponding to the second upper transmissive plate 210 in a horizontal direction to supply light, and the second lower LED 250 is a second lower transmissive plate It is installed at a location corresponding to 220 in the horizontal direction to supply light.

It is preferable that the second upper LED 240 and the second lower LED 250 are installed in opposite directions to each other and installed in opposite positions. Durability can be improved.

Since the second upper LED 240 and the second lower LED 250 implement different colors, they may be selected and installed as necessary, such as red, blue, and green. For example, when the second upper LED 240 is red and the second lower LED 250 is green and applied, if only the second upper LED 240 is operated, the above-described variable color section 330 Is emitted in red, and when only the second lower LED 250 is operated, the variable color section 330 emits green, and when the second upper LED 240 and the second lower LED 250 operate at the same time, , The variable color section will emit yellow.

The light generated from the second upper LED 240 and the second lower LED 250, respectively, and introduced into one side of the second upper light transmitting plate 210 and the second lower light transmitting plate 220, becomes a second light toward the other side. As the amount of reflection reflected in the plane by the upper light guide groove 210a and the second lower light guide groove 220a gradually increases, the intensity of light, that is, the light intensity, gradually decreases.

Therefore, a difference is placed in the density of the second upper light guide groove 210a and the second lower light guide groove 220a in the direction from one side of the second upper light-transmitting plate 210 and the second lower light-transmitting plate 220 to the other side. As a result, it is desirable to minimize eye fatigue felt by the user by projecting light with even illuminance over the entire plane, minimize distortion due to differences in illuminance, and improve visibility.

In the present invention, a plurality of second upper light guide grooves 210a are formed, but the distance from the second upper LED 240 in the horizontal direction is formed at a denser interval, and a plurality of second lower light guide grooves 220a are also formed. However, the second lower LED 250 and the second lower LED 250 are formed at a denser interval as the distance increases in the horizontal direction, so that a plurality of second light emitting diodes are engraved on the bottom surfaces of the second upper light transmitting plate 210 and the second lower light transmitting plate 220, respectively. The upper light guide groove 210a and the second lower light guide groove 220a have a light-transmitting pattern in which the density per unit area, that is, the density, increases from one side to which light is supplied to the other side. Accordingly, there is an effect of allowing light to be projected within a predetermined reference illuminance range in the entire planar area of the second upper light transmitting plate 210 and the second lower light transmitting plate 220.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to understand.

Therefore, it should be understood that the embodiments described above are illustrative in all respects and are not limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or altered forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. .

100: first light-emitting module 110: first upper light-transmitting plate
110a: first upper light guide groove 120: first lower light-transmitting plate
120a: first lower light guide groove 130: first light-transmitting frame
140: first LED 150: first reflective plate
200: second light-emitting module 210: second upper light-transmitting plate
210a: second upper light guide groove 220: second lower light transmissive plate
220a: second lower light guide groove 230: second light-transmitting frame
240: second upper LED 250: second lower LED
260: first reflective plate 300: display
310: background section 320: variable character section
330: variable color section 400: control unit
F: Basic frame C: Character display
B: rotating bar S1: first sealing member
S2: second sealing member

Claims (7)

Basic frame;
A first light-emitting module mounted on the basic frame and having two or more light-transmitting plates stacked to receive light irradiated from an LED installed on a side surface and scatter light to the front;
A second light-emitting module mounted on the basic frame, installed on a side surface, and having two or more light-transmitting plates stacked to receive light irradiated from LEDs having different colors and scatter to the front;
A display unit mounted on the basic frame and transmitting light supplied from the first light emitting module and the second light emitting module to provide traffic information to a driver; And
Containing; a control unit for transmitting a flashing signal to the LED having different colors installed in the second light-emitting module, a road sign having a traffic information display function through color realization.
The method according to claim 1,
The display unit,
It includes a background section formed of an opaque material, a variable character section and a variable color section formed of a perforated or transparent material,
The second light emitting module is installed at a position corresponding to the variable color section, the first light emitting module is installed at a position corresponding to the variable character section,
Further comprising at least two character display panels rotatably installed on the basic frame and selectively exposed through the variable character section,
The control unit is a road sign having a traffic information display function through color realization, characterized in that controlling the rotation of the character display panel.
The method according to claim 2,
The first light emitting module,
A first upper light-transmitting plate formed of a transparent or semi-transparent material to transmit light, and having a plurality of first upper light guide grooves engraved on a bottom surface to guide light scattering in a plane direction;
It is formed in a shape and material corresponding to the first upper light-transmitting plate, and a plurality of first lower light guide grooves are engraved on the bottom surface to guide light scattering in a plane direction, and the plane thereof is the first upper light-transmitting plate A first lower light-transmitting plate coupled to the bottom surface of the;
A first light-transmitting frame surrounding both side ends of the first upper light-transmitting plate and the first lower light-transmitting plate;
A first LED embedded in the first light-transmitting frame and supplying light from side surfaces of the first upper light-transmitting plate and the first lower light-transmitting plate; And
A road sign having a traffic information display function through color realization, comprising a first reflecting plate installed on a bottom surface of the first lower light-transmitting plate and reflecting light irradiated from the LED upward.
The method according to claim 2,
The second light emitting module,
A second upper light-transmitting plate formed of a transparent or semi-transparent material to transmit light and having a plurality of second upper light guide grooves engraved on a bottom surface to guide light scattering in a plane direction;
It is formed in a shape and material corresponding to the second upper light-transmitting plate, and a plurality of second lower light guide grooves are engraved on the bottom surface to guide light scattering in a plane direction, and the plane thereof is the second upper light-transmitting plate A second lower light-transmitting plate coupled to the bottom surface of the;
A second light-transmitting frame surrounding both side ends of the second upper light-transmitting plate and the second lower light-transmitting plate;
A pair of LEDs built into the second light-transmitting frame and supplying light from side surfaces of the second upper and second lower light-transmitting plates; And
A road sign having a traffic information display function through color realization, comprising a second reflecting plate installed on the bottom of the second lower light-transmitting plate and reflecting upwardly the light irradiated from the LED.
The method of claim 3,
The first LED is installed at a position corresponding to a boundary line between the first upper transmissive plate and the first lower transmissive plate,
The first upper light guide groove and the first lower light guide groove are formed at positions corresponding to each other in a vertical direction. A road sign having a traffic information display function through color realization.
The method of claim 4,
The pair of LEDs,
A second upper LED installed at a position corresponding to the second upper transmissive plate in a horizontal direction to supply light; And
And a second lower LED installed at a position corresponding to the second lower light-transmitting plate in a horizontal direction to supply light,
A road sign having a traffic information display function through color realization, characterized in that the second upper LED and the second lower LED are implemented in different colors.
The method of claim 6,
A plurality of the second upper light guide grooves are formed, and are formed at a denser interval as the distance from the second upper LED in a horizontal direction increases,
A plurality of the second lower light guide grooves are formed, and are formed at a denser interval as the distance from the second lower LED in a horizontal direction increases,
A road sign having a traffic information display function through color realization, characterized in that the second upper LED and the second lower LED are located in a direction facing each other.

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