KR100928740B1 - Raised letters block system having emitting light function - Google Patents

Abstract

PURPOSE: A light emitting studded paving block system is provided to display the additional information which is helpful to a user and to improve the discernment effect. CONSTITUTION: A light emitting studded paving block system is composed of a coupling unit(10), a control unit(20), and a studded paving block(30). The coupling unit is physically combined to a cable of an external system to which a driving signal is applied. The coupling unit generates a harmonic signal coupled to a driving signal moving along the cable. The control unit controls the light emitting of the studded paving block based on the harmonic signal. The studded paving blocks are connected to the control unit in parallel and/or serial through a connector wire(W). A light source is installed in the studded paving block. A projecting pattern is formed on the exposed face of the studded paving block. An optical member made of transparent materials is filled in the projecting pattern.

Description

Raised letters block system having emitting light function}

The present invention relates to a braille sidewalk block. More specifically, the present invention is a braille walkway block that is installed along a pedestrian crossing on a sidewalk or a subway waiting line to provide a projection pattern for the visually impaired, and an operation signal of a separate external system such as a traffic light or a subway guide board. The present invention relates to a low power, light emitting Braille report system that delivers more accurate information through a predetermined light emitting function linked to an external signal while improving identification power.

In general, 'broadcasting block' refers to building materials in the form of blocks that are installed along sidewalks and provide floors for pedestrians, and one of these types of braille sidewalk blocks is for the visually impaired. The projection pattern is given to specify the case where the display function of the position and the direction is added.

In other words, the Braille Pedestrian Block, also called the Blind Sidewalk Block, is a special-purpose walkway where a predetermined projection pattern is given to the surface of the blind so that the position and direction can be known by the touch of the sole or the cane. As a block, it is strictly distinguished between the braille projection for position indication and the linear projection for direction indication, but it is generally called a projection pattern. Such a braille foot block is mainly installed along the entrance line of the crosswalk or the subway waiting line. Pedestrian junction, waiting point, start point, end point, etc. are displayed.

Therefore, the projection pattern of the braille foot block below includes a braille projection and a linear projection, which will be used in the same meaning consistently herein.

On the other hand, the size and material of the braille walkway block can be variously modified according to the purpose, but the cube shape of 30cm (width) × 30cm (length) × 6cm (height) is most widely used, and concrete, porcelain, stone In the mainstream of the lamp, products such as high-strength plastic wrapped on the surface of concrete (so-called flacons) and kinds of synthetic resin or metal projection patterns attached to the surface of the main body of metal are introduced.

However, the conventional Braille coverage block exhibits a disadvantage of low identification power and poor information transfer power.

In other words, as the construction cases of Yosai Braille Walk Blocks increase, it is recognized as a kind of safety line not only for the visually impaired but also for the general public, including low vision, the elderly, and children.Typical Braille Walk Blocks display the information in a simple projection pattern. It can be useless for a user who is dull or doesn't know what to display. Accordingly, the Braille walkway block or the projection pattern may be painted in a highly visible color such as yellow, but it is often not recognized unless the user while walking is paying special attention. .

In addition, a general Braille walkway block indicates that the corresponding point is a pedestrian junction, a waiting point, a starting point, and an ending point, and it is impossible to convey other information such as additional information such as a light state of a traffic light or whether a subway is entered.

For this reason, there is an urgent need for Braille coverage blocks that are highly discernible and can display various additional information more clearly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has an object of providing a braille press block that can clearly display additional information that is high in identification and helpful to a user.

To this end, the present invention is a braille walkway block that provides a projection pattern for the visually impaired is installed along the sidewalk access line or subway waiting line in India, in particular a light emitting function interlocked with a separate external system, such as traffic lights, subway guides Through the display of more information, and to provide a low-power emitting Braille report with a significantly improved identification.

In order to achieve the above object, the present invention, a coupling unit for physically coupled to the cable of the external system to which a predetermined drive signal is applied to generate a tuning signal coupled to the drive signal; A braille walkway block having a light source emitting light therein and having a projection pattern made of a transmissive material through which light generated from the light source is transmitted along one surface thereof and installed on the floor such that the one surface is exposed to the outside; And a controller configured to have a battery embedded therein and electrically connected to the coupling unit and the light source to selectively turn on / off charging power of the battery to the light source according to the coupling signal, wherein the coupling unit comprises: It provides a light emitting braille press block system that is a metal clip that is closely adhered to the outer surface of the coil is embedded.

At this time, the braille foot block is characterized in that the plurality of serial or parallel connection to the control unit via a connector wire coupled to the connector plug further comprises two or more connector plugs provided on the back to be electrically connected to the light source. The control unit may be embedded in one of the braille press blocks.

In addition, the braille foot block is a spherical or hemispherical mirror housing is built in the braille foot block surrounding the light source and the inner surface facing the light source made of a reflective material to reflect the light generated from the light source; A plurality of optical fibers inserted into the mirror housing so that one end thereof faces in close proximity to the light source; And an optical member made of a highly transparent material filled in the protrusion pattern and inserted into the other ends of the plurality of optical fibers, wherein the protrusion pattern has a taper whose width decreases as the inner side of the protrusion crosses upward. The optical member has a prism pattern formed along an upper surface thereof, and an uneven pattern corresponding to the prism pattern is formed on an inner upper surface of the protrusion pattern, and a reflective material interposed along an inner side surface of the protrusion pattern. It characterized in that it further comprises a reflective sheet.

In addition, the light source is characterized in that it comprises at least one LED, the external system is characterized in that it comprises a traffic light, a subway guide display.

The light-emitting braille press block system according to the present invention has an advantage of improving the identification of the braille press block and displaying various additional information more clearly. That is, according to the present invention, the user can more clearly check the Braille walkway block through the light as well as the touch, and can know the operation status of the traffic light and the fact of entry of the subway through whether the light is on or off.

In addition, according to the present invention it is possible to the light emitting function to interlock with an external system, such as a traffic light, subway display board, in particular, the coupling portion has the advantage that can be easily installed without a separate electrical wiring work.

In addition, the light-emitting braille press block system according to the present invention implements a low luminance uniform brightness, thereby providing a more beautiful lighting function, but does not disturb the vision of the vehicle driver.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a light emitting embossed block system according to the present invention, which may be divided into a coupling unit 10, a controller 20, and at least one braille press block 30.

Looking at each of them in detail:

First, the coupling unit 10 is physically coupled to a cable of an external system to which a predetermined driving signal is applied to generate a tuning signal coupled to a driving signal flowing along the cable.

At this time, the external system may be a traffic light or a subway information board. Optionally, the pedestrian traffic light switches green and red lights with a driving signal of a predetermined size applied through a dedicated cable, and the subway information board also uses a dedicated cable. A letter is displayed by a driving signal of a predetermined size to inform the entrance of the subway.

Therefore, the driving signal flowing along each cable is inevitably changed when driving a traffic light or a subway sign, and the coupling unit 10 is physically coupled to the cable of an external system to which the driving signal is applied. A tuning signal coupled to the magnitude change of the flowing drive signal is generated.

To this end, the coupling part 10 may represent a clip shape of a metal material in which a coil is embedded, and the specific configuration and action will be described once again in the corresponding part.

For reference, the number and type of cables may vary depending on the type of external system, but the coupling unit 10 is properly coupled to one or more of them, for example, a driving signal for turning on a green light in the case of a pedestrian signal. In the case of the subway guide panel, the drive signal for the character display is respectively coupled to the cable is applied.

This may be easily understood by those skilled in the art with reference to the following contents.

Next, the braille walkway block 30 is a block-type building material installed along an entrance line of a crosswalk or a subway waiting line to provide a floor for pedestrians. Alternatively, a linear projection pattern is formed.

At this time, the braille walkway block 30 may have the same appearance as that of the general one, but in the case of the present invention, in particular, a separate light source is built so that the light generated from the light source is projected to the outside through the projection pattern, and the connector It is characterized in that the plurality is connected in series and / or parallel using a wire.

The specific configuration and operation of the braille walkway block 30 for this will also be discussed once again in this section.

Finally, the control unit 20 controls the light emission of the braille foot block 30 based on the tuning signal of the coupling unit 10.

The control unit 20 has a built-in battery for the corresponding function, and predetermined operating means, for example, a predetermined algorithm for applying on / off the charging power of the battery to the braille foot block 30 according to the tuning signal of the coupling unit 10. And a logic operation circuit, a switch, and the like mounted thereon.

As a result, the light emitting braille press block system according to the present invention can improve the discriminating power of the braille press block 30 and display additional information helpful to the user.

That is, when the pedestrian traffic light is switched to green light or when the message indicating that the subway is entering through the subway guide panel is displayed, the coupling unit 10 generates a tuning signal coupled to the driving signal applied to each cable and controls the control signal. The control unit 20 turns on the light source of the braille press block 30 so that the light is projected to the outside. Then, when the pedestrian traffic light is switched to a red light or the guide letter of the subway information display panel is turned off, the coupling unit 10 generates a tuning signal coupled to the driving signal applied to each cable, and transmits it to the control unit 20. The control unit 30 turns off the light source of the braille walk block.

At this time, if necessary, install an illuminance sensor for detecting the ambient brightness in the control unit 20 or the braille walkway block 30 to turn on the light source of the braille walkway block 30 when the ambient brightness falls below a reference value, such as at night. It is possible.

Therefore, the user can more clearly check the braille walkway block 30 through the lights as well as the touch, and can know the operation status of the traffic lights and the fact of entry of the subway through whether the lights are on or off.

2 is a view illustrating the installation of the light emitting braille walkway system according to the present invention, which is shown in the case of being linked to the traffic light SL of the crosswalk 2 for convenience.

As shown, the coupling unit 10 is physically connected to the cable of the traffic light SL, the control unit 20 is installed in an appropriate position, the braille foot block 30 is connected to the control unit (W) through the connector wire (W) 20) in series and / or parallel connection to the desired location on the sidewalk. At this time, if necessary, the control unit 20 may be embedded in any one of the braille walkway block 30 or embedded in the ground, or may be mounted on a control panel of other traffic lights SL.

FIG. 3 is an enlarged view of the circle A portion of FIG. 2, showing a preferred embodiment of the coupling portion 10.

As can be seen, the coupling portion 10 is a clip that is physically coupled to the cable C, and a pair of half-circles or similar arc-shaped clip ends 12, 14 having a predetermined width are connected by a hinge 16, The cable C can be accommodated therebetween. In this case, a coil is mounted inside the pair of clip ends 12 and 14, and a tuning signal generated from the coils inside the clip ends 12 and 14 is transmitted to the control unit 20 through the wire 18 or the like. .

Furthermore, the torsion spring may be preferably attached to the hinge 16 to exert elasticity so that the pair of clip ends 12 and 14 may be retracted in a circular shape, and the cable C may be exposed to the outside as shown in the drawing. In this case, a separate case surrounding a part of the cable C including the coupling part 10 may be covered or sealed with a predetermined sealing agent so that rain water does not flow in.

4 to 6 are views illustrating a braille foot block 30 of the light emitting braille foot block system according to the present invention. FIG. 4 corresponds to a plan view, FIG. 5 corresponds to a rear view, and FIG. Corresponds to the cross section.

4 and 5, for convenience, the braille walk block 30 according to the present invention shows a block shape of an hexahedral shape, and a predetermined protrusion pattern 40 is formed along one surface exposed to the outside.

At this time, the upper surface of the protruding pattern 40 forms a window 42 of a transparent material such as glass or plastic, which can transmit light, unlike other portions, and the rest of the braille coverage block 30 except for this is the related art. It is made of one or more of materials known in the art, such as concrete, synthetic resin, metal.

In addition, at least two connectors 34 are provided on the rear surface of the braille walk block 30 to be electrically connected to a light source 54 to be described later.

Therefore, as shown in FIG. 2, the braille walkway block 30 is electrically connected to the control unit 20 or another braille walkway block 30 through the connector wire W, and the braille walkway block 30 is installed outdoors. In order to prevent a short circuit due to rain or the like, it is appropriate to use a product having a waterproof function for the connector 34 and the connector wire W. For the same reason, the rear edge of the braille press block 30 is Therefore, the sealing seal of the rubber material (S) can be enclosed, the connector wire (W) is not connected to the connector 34 is preferably sealed with a separate stopper made of a waterproof material such as rubber.

Next, referring to FIG. 6, the light source 54 is embedded in the braille walk block 30, and the optical member 80 made of a transparent material that transmits light is filled in the protrusion pattern 40. A plurality of optical fibers 60 are interposed between 54 and the optical member 80 such that one end thereof is in close contact with the light source 54 while the other end is inserted into the optical member 80.

At this time, preferably, the light source 54 is at least one LED mounted on the PCB 52. If necessary, a so-called cluster type in which a plurality of LEDs are mounted on the single PCB 52 may be used.

In addition, the PCB 52 is covered with a circular or semi-spherical mirror housing 56 through which one end of the optical fiber 60 is inserted to receive the LED which is the light source 54 therein. The inner surface of the mirror housing 56 It is made of a silver or white reflective material to reduce unnecessary light loss and to transmit a substantial amount of light generated from the LED to the optical fiber 60. In this case, the upper surface of the PCB 52 on which the LED is mounted may also be made of a reflective material of silver or white.

On the other hand, the optical fiber 60 is a general term of the elongated fiber made of glass or transparent synthetic resin for the transmission of light, the double refractive index surrounding the clad (small clad) with a relatively small refractive index on the outer peripheral surface of the transparent core with a large refractive index It shows a cylindrical shape. As a result, the light incident on one end of the optical fiber 60 is totally reflected at the interface between the core and the clad due to the difference in the refractive index of the interface between the core and the clad, and proceeds to the opposite side, and glass (fiber) is used as the core material. Glass Optical Fiber (GOF) and PMMA (Poly Methyl Meth Acrylate) are used as plastic optical fibers (POF). In addition, the general optical fiber 60 is an end light method in which the light incident at one end is radiated to the opposite end, but when the crack or damage is applied to the clad side, the optical fiber 60 is a side light method that radiates to the side in the longitudinal direction. In the present invention, an end light method is used, and the single light mode is divided into a single mode and a plurality of multimodes according to the mode of light to be guided, and the multimode is further subdivided into a stepped refractive index fiber and a hill type refractive index fiber. It may be used.

In addition, the inner space of the projection pattern 40 has a tapered shape in which the width decreases as the inner side of the vertical section is upward, and the optical member 80 filled in the space has a predetermined thickness in which the prism pattern 84 is formed along the upper surface. A highly permeable material of may be used (see FIG. 7).

That is, Figure 7 is a perspective view showing the optical member 80 is filled into the projection pattern 40 of the braille foot block 30 according to the present invention.

Here, the optical member 80 is a part for improving light efficiency and achieving uniform luminance, and a prism pattern having a triangular cross section perpendicular to the longitudinal direction on the upper surface of the main body 82 made of a high-transmissive material that transmits light ( 84) is repeatedly arranged to improve light efficiency and brightness uniformity and to increase light collection efficiency.

Referring back to FIG. 6, preferably, a reflective sheet 66 of a reflective material is interposed along the inner side of the protrusion pattern 40 except the upper surface of the protrusion pattern 40 to condense the light transmitted through the optical fiber 60 vertically upward. At the same time, unnecessary light loss is reduced, and an uneven pattern 44 corresponding to the prism pattern 84 of the optical member 80 is formed along the upper surface of the projection pattern 40, that is, the back surface of the window 42. Avoid unnecessary diffuse reflections. In this case, the reason for condensing the light of the optical fiber 60 to the vertically upward direction of the projection pattern 40 by using the reflective sheet 66 is to prevent elements such as glare of the driver of the vehicle driving on the road. The reason for forming the uneven pattern 44 on the rear surface of the window 42 is to prevent light loss due to unnecessary diffuse reflection.

In addition, the braille walk block 30 may be integrally formed with the upper surface formed with the projection pattern 40 and the four sides connected therefrom, but the bottom surface 32 provided with the connector 34 may be separately separated and coupled with a bolt or the like. In addition, it is appropriate to protect the light source 54, the mirror housing 56, the optical fiber 60, the optical member 80, etc. by filling an insulating molding into the braille foot block 30 except for the PCB 52. Do.

At this time, the reason for excluding the PCB 52 is to easily separate the LED having a relatively limited lifetime, and the user unscrews the bolt when the LED is broken to separate the bottom surface 32 of the braille foot block 30. After the PCB 52 exposed from the molding and the LEDs mounted thereon may be replaced or repaired, the bottom surface may be combined again.

Reference numeral H in FIG. 5 represents a bolt hole for bolt insertion.

On the other hand, the above description is only a preferred embodiment of the present invention, there may be various modifications. However, if these modifications are included in the technical spirit of the present invention will be within the scope of the present invention, the scope of the present invention can be easily understood by those skilled in the art through the following claims.

1 is a block diagram of a light emitting embossed block system according to the present invention.

Figure 2 is a schematic view of the installation of a light emitting braille press block system according to the present invention.

3 is an enlarged perspective view of the in-circuit A portion of FIG. 2;

4 is a perspective view of a braille foot block according to the present invention.

5 is a plan view of a braille foot block according to the present invention.

Figure 6 is a bottom view of the braille sidewalk block according to the present invention.

Figure 7 is a cross-sectional view of the braille footpath in accordance with the present invention.

8 is a perspective view of an optical member according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: coupling unit 20: control unit

30: braille foot block 40: protrusion pattern

42: Windows 52: PCB

54: light source 56: mirror housing

60: optical fiber 80: optical member

Claims (9)

A coupling unit physically coupled to a cable of an external system to which a predetermined driving signal is applied to generate a tuning signal coupled to the driving signal; A braille walkway block having a light source emitting light therein and having a projection pattern made of a transmissive material through which light generated from the light source is transmitted along one surface thereof and installed on the floor such that the one surface is exposed to the outside; And And a control unit having a battery built therein and electrically connected to the coupling unit and the light source to selectively turn on / off charging power of the battery to the light source according to the coupling signal, wherein the coupling unit includes: A light-embossed Braille Press Block system that is a metal clip that adheres along an outer surface and has a coil. The method according to claim 1, The braille walkway block further includes two or more connector plugs provided on a rear surface of the light source to be electrically connected to the light source, and a plurality of light-embossed braille walkways connected to the control unit through a connector wire coupled to the connector plug. Block system. The method according to claim 1, The control unit is a light emitting braille news system is embedded in one of the braille foot block. The method according to claim 1, The braille sidewalk block, A spherical or hemispherical mirror housing which is embedded in the braille foot block and surrounds the light source and faces the light source to reflect light generated from the light source; A plurality of optical fibers inserted into the mirror housing so that one end thereof faces in close proximity to the light source; And A light emitting braille report system further comprising an optical member of a high transmissive material filled in the protrusion pattern and inserted into the other ends of the plurality of optical fibers. The method according to claim 4, The projection pattern is a tapered shape in which the width of the inner side on the vertical cross-section is increased upward, the optical member is formed with a prism pattern along the upper surface, the inner surface of the projection pattern is formed with an uneven pattern corresponding to the prism pattern Emitting Braille Press Block System. The method according to claim 5, A light emitting embossed block system further comprising a reflective sheet of reflective material interposed along the inner side of the projection pattern. The method according to claim 1, The light source includes at least one LED light emitting Braille system. The method according to claim 1, The external system is a light-emitting braille footpath system including a traffic light, a subway guide. delete

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