KR20190093851A - Stopline led cube block crosswalk system - Google Patents

Abstract

A stop line LED cube block crosswalk system of the present invention, which is a stop line LED cube block system installed on a vehicle stop line of a crosswalk, includes: a plurality of stop line LED cube blocks (100); a plurality of pedestrian blocks (200) provided on the crosswalk and a sidewalk; and a plurality of piezoelectric power generation modules (300) provided on a lower end of the pedestrian blocks (200).

Description

Stopline LED Cube Block Crosswalk System {STOPLINE LED CUBE BLOCK CROSSWALK SYSTEM}

The present invention relates to a stop line LED cube block pedestrian crossing system, and more particularly, to a stop line LED cube block pedestrian crossing system that can improve visibility of the vehicle driver through the LED flashing.

The increasing number of automobiles in industrialized societies is causing serious social and economic damage, which is one of the major safety and public health problems worldwide. Due to the mass dissemination of automobiles today, automobiles are most closely related to pedestrians on the road, so the number of car accidents has soared, and accidents have been reported all day long, which has become a big social problem. Traffic accidents can be caused by various causes, such as people, vehicles, and road environments, but it is analyzed that there are many complex factors in which these factors interact. However, when an accident occurs due to a vehicle or road environmental factors, human injury is more severe and fatal than an accident caused by a person.

A pedestrian crossing is a pedestrian facility for crossing roads. There is a white line drawn horizontally with the road and a traffic light. It is usually installed at a flat intersection and is placed in the middle of a road that is considered to have high traffic volume. Basically, it allows pedestrians to cross the road, but motorcycles and bicycles can cross. It is the most common and quick way for pedestrians to cross the street. However, since it is usually installed with a traffic light, there is a perception that traffic is blocked, resulting in an overpass or an underground road as an alternative.

Most types of crosswalks are straight across the road, but others can cross diagonally by giving red lights to all cars and green lights to all pedestrians at three or four crossroads. This is called the scramble method in Japan. Some large roads, such as Tehran Road, are divided into two crossings with a waiting area in the middle of the crosswalk in order to catch traffic on a crosswalk and block traffic.

Drivers often leave at random when there is no person on the crosswalk even when the blue light is turned on. For this reason, more attention is required than in the case of children. Children may not see their movements because they think the vehicle will stop because of the blue light. Naturally, the car has to stop, but hasty drivers can't stand waiting and drive with less visibility.

The awareness of pedestrians as well as drivers should be improved. In the preliminary flashing state of traffic lights, avoid crossing as much as possible. The new traffic light tells you the time remaining after a few seconds of flashing light in the preliminary flashing state, which is not a short pedestrian crossing. Traffic control is also behind. The traffic signal in Korea is basically assigned to the pedestrian crossing pedestrian crossing as 1 second per meter, which is too short compared to foreign countries.

At no-signal pedestrian crossings, drivers and pedestrians pass each other with caution, but at signal pedestrian crossings, accidents may increase if drivers and pedestrians violate the signal.

The most common time zone for pedestrian accidents in signal crosswalks is after 19:00. After that, it also happens a lot in the morning. As the evening passes, the number of cars and pedestrians decreases, but carelessness increases while driving. At night, the flashing lights are operated to smooth the traffic of the car, and the driving speed of the car is increased.In addition, the night vision becomes dark due to night vision, which makes it difficult to recognize the traffic lights. there was.

Patent Document 1 shows a crosswalk in which a piezoelectric element is provided and a piezoelectric element in which a piezoelectric element and a lighting device are connected to each other are connected to each other. Patent document 1 has a structure that emits the LED of the stop line on the automobile road by hitting the piezoelectric element embedded in the crosswalk after stepping on the crosswalk, there was a problem that the LED light is not visible to the car driver.

Republic of Korea Patent Publication No. 10-2015-0175415 (2017.06.19)

An object of the present invention is to blink the LED projected at the optimum angle that the stop line is well visible to the vehicle driver to improve visibility for pedestrians and pedestrians crossing the vehicle, and generate electricity in the crosswalk pedestrian signal to emit LEDs on the vehicle stop line To provide a stop line LED cube block pedestrian crossing system.

A stop line LED cube block crosswalk system of the present invention for achieving the above object is a stop line LED cube block system installed in a vehicle stop line of the crosswalk, a plurality of the stopline LED cube block; A plurality of the pedestrian blocks provided on the crosswalk and sidewalks; And a plurality of piezoelectric power generation modules provided at a lower end of the pedestrian block. It may be configured to include.

Here, the stop line LED cube block is a case portion of a rectangular parallelepiped consisting of a pressure-resistant material; A luminous flux adjusting light source unit mounted inside the case part and having a current adjusting unit and an on / off adjusting unit for adjusting luminous flux; A light guide part connected to the luminous flux adjusting light source part and having a light projection adjusting part for adjusting luminous intensity, illuminance and luminance; And a light projecting part made of a transparent material connected to the light guide part and provided on an outer surface of the case. It may include.

Here, the light guide part includes a first push module, a first moving module, a first tilt module, and a first rotation module, and the light projection adjusting part includes a second push module, a second moving module, a second tilt module, and a second It may include a rotary module, a third tilt module, a third rotary module.

Here, the light projection adjusting unit may further include a plurality of elastic modules.

Here, the light projection adjusting unit may form a structure in which the light source is projected at an angle of 45 degrees with respect to the traveling direction of the vehicle.

Here, the plurality of stop line LED cube block may be provided with a coupling module is configured in the fitting structure connected in parallel.

Here, a plurality of the luminous flux control light source portions of the plurality of stop line LED cube blocks may be connected in parallel, and may be provided with a block circuit portion that is closedly connected to the piezoelectric power generation module.

Herein, the pedestrian block may include an up cover part in which a pedestrian waiting signal is projected by blinking an LED; A dispersion part made of a polycarbonate material and rotated according to the rotation of the left and right guide motors in a vertical state to adjust the irradiation angle to reflect light emitted from the LED module to the light guide plate; A plurality of LEDs configured to emit light according to a control signal of a controller; A down cover part formed of a rectangular box-shaped body and having half arc-shaped fitting grooves formed at both sides of the body; One side of the opposite side protrudes half-shaped fitting jaw is coupled to one side is fitted into the fitting groove of the down cover portion to engage with the pedestrian block; And a base cover part positioned at a lower end of the square seating recess of the down cover part to securely support the down cover part in a lower direction.

Here, the piezoelectric power generation module is in contact with the bottom surface of the pedestrian block for transmitting the external force generated in the pedestrian block to the external force transmission unit; An elastic spring part inserted into the head joint of the external force transmission part to repeatedly generate an external force to the external force transmission part by an elastic force and a restoring force; An external force transmission unit adhered to the second electrode of the first piezoelectric member and the third electrode of the second piezoelectric member and transmitting external force to the first piezoelectric member and the second piezoelectric member by elastic force and restoring force of the elastic spring portion; A first piezoelectric member, a second piezoelectric member, a third electrode, and a third piezoelectric member having a configuration of a first piezoelectric member, a first electrode, and a second electrode are generated so that shear deformation is generated by the external force transmitted from the external force transmission unit to generate electricity. A piezoelectric member made of a second piezoelectric member having a configuration of four electrodes; It may further include.

Here, the AC power supply for supplying power to each device by receiving AC power; And a control unit connected to the AC power supply unit for controlling power to be applied to each device, and controlling a stop line LED cube block operation signal for each period. It may further include.

The control unit may include: a power transformer unit configured to convert electric power so that the electricity generated by the piezoelectric power generation module is supplied down by supplying a capacity of a lithium ion battery; Receives the converted power through the power transmission unit sends a wake-up driving signal to each device, connected to the piezoelectric power generation module and the AC power supply unit to control the power applied to each device, the vehicle stop line LED cube block operation signal A control unit for controlling; It may further include.

Specific details of other embodiments are included in the "details for carrying out the invention" and the accompanying "drawings".

Advantages and / or features of the present invention and methods for achieving them will become apparent with reference to the various embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the configuration of each embodiment disclosed below, but may be implemented in a variety of different forms, each embodiment disclosed herein is only to complete the disclosure of the present invention, It should be understood that the present invention is provided to fully inform those skilled in the art to which the invention pertains, and the present invention is defined only by the scope of each claim of the claims.

According to the present invention, by blinking the LED as a preliminary signal in front of the stop line to enable the vehicle driver and pedestrians to stop exactly at the stop line, it is possible to improve the visibility of pedestrian crossing and pedestrians and vehicle drivers, LED can emit light can significantly reduce the traffic accident rate of pedestrian crossing, and it is effective to overcome the geographical limitations of power supply and reduce electricity consumption by power drive consisting of piezoelectric power module and AC power supply.

1 is a block diagram showing a stop line LED cube block crosswalk system according to the present invention.
2 is a perspective view showing the components of the stop line LED cube block 100 according to an embodiment of the present invention.
3 is a perspective view showing the operation of the stop line LED cube block 100 according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing the operation of the light projection adjusting unit 150 of the stop line LED cube block 100 according to the present invention.
Figure 5 is a schematic diagram showing the connection of the connection module 180, 180 'of the stop line LED cube block 100 according to the present invention.
6 is an exploded perspective view showing the components of a crosswalk block 200 according to an embodiment of the present invention.
7 is an exploded perspective view showing the components of the crosswalk block 200 and the piezoelectric power generation module 300 according to another embodiment of the present invention.
8 is an exploded perspective view showing the components of the piezoelectric power generation module 300 according to an embodiment of the present invention.
9 (a) to 9 (c) illustrate experiments for measuring illuminance and luminance of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each angle according to Experiment 1 of the present invention. One picture.
10 (a) to 10 (c) are angles of 30 degrees (a), 45 degrees (b), and 60 degrees for each angle to obtain an angle that does not interfere with the driving field of view at the driver's position according to Experiment 2 of the present invention. (c) A photograph showing the experiment.
11 (a) to 11 (c) are photographs showing the distribution of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each visual angle according to Experiment 3 of the present invention.

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

Before describing the present invention in detail, the terms or words used in the present specification should not be construed as being limited to ordinary or dictionary meanings, and in order for the inventor of the present invention to explain his invention in the best way. Concepts of various terms may be properly defined and used, and furthermore, it is to be understood that these terms or words should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

In other words, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting the teachings of the invention. It should be understood that the term is defined in consideration.

In addition, in the present specification, the singular expressions may include the plural expressions unless the context clearly indicates otherwise, and similarly, the plural expressions may include the singular meanings. do.

Throughout this specification, when a component is described as "comprising" another component, the component may further include any other component rather than excluding any other component unless otherwise stated. It can mean that you can.

Furthermore, if a component is described as being "inside, or in connection with," another component, the component may be directly connected or installed in contact with another component, The components may be spaced apart from each other, and in the case of spaced apart from each other, there may be a third component or means for fixing or connecting the components to other components. It should be understood that the description of the components or means of 3 may be omitted.

On the other hand, if a component is described as being "directly connected" or "directly connected" to another component, it should be understood that no third component or means exists.

Similarly, other expressions describing the relationship between each component, such as "between" and "immediately between", or "neighboring to" and "directly neighboring to", have the same purpose. Should be interpreted as

In addition, in this specification, terms such as “one side”, “other side”, “one side”, “other side”, “first”, “second”, and the like, if used, refer to this one component for one component. Is used to clearly distinguish from other components, and it should be understood that such terms do not limit the meaning of the components.

In addition, terms related to positions such as “up”, “down”, “left”, “right”, etc., when used herein, should be understood to indicate relative positions in the corresponding drawings with respect to the corresponding components, if used. Unless an absolute position is specified with respect to these positions, these position related terms should not be understood as referring to an absolute position.

Moreover, in the specification of the present invention, the terms "unit", "unit", "module", "device" and the like, if used, means a unit capable of processing one or more functions or operations, which may be hardware or software. It should be understood that the implementation may be implemented in a combination of hardware or software.

In addition, in the present specification, in designating the reference numerals for each component of each drawing, the same reference numerals refer to the same components so as to have the same reference numerals even though they are shown in different drawings, that is, the same reference numerals throughout the specification. The symbols indicate the same components.

In the accompanying drawings, the size, position, coupling relationship, etc. of each component constituting the present invention may be partially exaggerated or reduced or omitted in order to sufficiently convey the spirit of the present invention or for convenience of description. It may be described, so the proportion or scale may not be exact.

In addition, in the following, in the following description of the present invention, detailed descriptions of configurations known to unnecessarily obscure the subject matter of the present invention, for example, known technologies including the prior art, may be omitted.

1 is a block diagram showing a stop line LED cube block crosswalk system according to the present invention.

2 is a perspective view showing the components of the stop line LED cube block 100 according to an embodiment of the present invention.

3 is a perspective view showing the operation of the stop line LED cube block 100 according to an embodiment of the present invention.

Figure 4 is a schematic diagram showing the operation of the light projection adjusting unit 150 of the stop line LED cube block 100 according to the present invention.

Figure 5 is a schematic diagram showing the connection of the connection module 180, 180 'of the stop line LED cube block 100 according to the present invention.

6 is an exploded perspective view showing the components of a crosswalk block 200 according to an embodiment of the present invention.

7 is an exploded perspective view showing the components of the crosswalk block 200 and the piezoelectric power generation module 300 according to another embodiment of the present invention.

8 is an exploded perspective view showing the components of the piezoelectric power generation module 300 according to an embodiment of the present invention.

9 (a) to 9 (c) illustrate experiments for measuring illuminance and luminance of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each angle according to Experiment 1 of the present invention. One picture.

10 (a) to 10 (c) are angles of 30 degrees (a), 45 degrees (b), and 60 degrees for each angle to obtain an angle that does not interfere with the driving field of view at the driver's position according to Experiment 2 of the present invention. (c) A photograph showing the experiment.

11 (a) to 11 (c) are photographs showing the distribution of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each visual angle according to Experiment 3 of the present invention.

The stop line LED cube block crosswalk system of the present invention comprises a stop line LED cube block system installed at a vehicle stop line of a pedestrian crossing, the stop line LED cube block (100); A plurality of the pedestrian blocks 200 provided on the crosswalk and sidewalks; And a plurality of piezoelectric power generation modules 300 provided at a lower end of the pedestrian block 200. It is configured to include.

Referring to Figure 1, a stop line LED cube block system according to the present invention is disclosed. The stop line LED cube block system of the present invention is composed of a stop line LED cube block 100, a pedestrian block 200, a piezoelectric power generation module 300, AC power source 400, control unit 500.

2 and 3, there is shown a vehicle stop line LED cube block 100 in accordance with the present invention.

Stop line LED cube block 100 is a case portion 110 of a rectangular parallelepiped made of a pressure-resistant material; A luminous flux adjusting light source unit 130 mounted inside the case unit 110 and including a current adjusting unit 133 and an on / off adjusting unit 135 to adjust luminous flux; A light guide part 150 connected to the luminous flux adjusting light source part 130 and having a light projection adjusting part 150 'for adjusting luminous intensity, illuminance and brightness; And a light projection part 170 connected to the light guide part 150 and provided on the outer surface of the case 110. It includes.

In one embodiment of the present invention, the luminous flux adjusting light source unit 130 of the stop line LED cube block 100 includes a current adjusting unit 133 or an on-off adjusting unit 135 and adjusts the luminous flux of the LED light source.

In one embodiment of the present invention, the light projection adjusting unit 150 ′ of the light guide unit 150 of the stop line LED cube block 100 adjusts the luminous intensity, illuminance, and luminance of the LED light source.

In an embodiment of the present invention, the light guide unit 150 includes a first push module 151, a first moving module 152, a first tilt module 153, and a first rotation module 154. The projection adjustment unit 150 'includes a second push module 151', a second moving module 152 ', a second tilt module 153', a second rotation module 154 ', and a third tilt module 153'. '), The third rotary module 154 ″ may be configured to further include an elastic module 160.

The plurality of luminous flux control light source units 130 of the plurality of stop line LED cube blocks 100 are connected in parallel, and are connected to the piezoelectric power generation module 300 to provide a block circuit unit 190 for applying power.

When the user applies an action force to the first push module 151, the first moving module 152 is pushed. When the first moving module 152 is pushed, the first inclination module 153 connected thereto rotates the first rotation module 154 about its axis so that the direction of the luminous flux emitted from the luminous flux adjusting light source unit 130 is inclined. When the action force added to the first moving module 152 is added to the elastic module 160 and the action force exceeds a critical point according to the degree of elasticity of the elastic module 160, the second push module 151 ′ is pushed to the right. do. When the second push module 151 'is pushed to the right, the second moving module 152' is pushed to the right, and accordingly, the second inclination module 153 'is made with the second rotating module 154' as the axis. This rotation is inclined so that the direction of the luminous flux emitted from the luminous flux adjusting light source unit 130 is inclined.

The plurality of luminous flux control light source units 130 of the plurality of stop line LED cube blocks 100 are connected in parallel, and the block circuit unit 190 is connected to the piezoelectric power generation module 300 to supply power.

Referring to FIG. 4, the angle at which the light source of the luminous flux adjusting light source unit 130 is projected by the light projection adjusting unit 150 ′ is calculated by an experimental example, which is 45 degrees most preferred, and 30 degrees according to the inclination of the road surface. It can be installed at 60 degrees or any other angle.

Referring to FIG. 5, a plurality of stop line LED cube blocks 100 may be provided with a coupling structure in which a plurality of stop line LED cube blocks 100 are engaged to be connected in parallel. The coupling module 180 of one stop line LED cube block 100 may be connected to be engaged with the coupling module 180 'of the other stop line LED cube block 100. In this case, the plurality of stop line LED cube blocks 100 may be continuously disposed and buried in the vehicle stop line provided on the side of the crosswalk.

The vehicle stop line LED cube block 100 is located at a stop line point before entering a crosswalk in the direction of the vehicle with respect to the vehicle 10, and visually recognizes the signal to stop and wait until the vehicle driver changes to the vehicle driving signal by LED blinking. Do it. It consists of a structure protruding on the vehicle road or a block structure embedded inside the vehicle road.

Referring to FIG. 6, the pedestrian block 200 includes an upcover unit 210, a dispersion unit 220, an LED module 230, a downcover unit 240, a coupling unit 250, and a base cover unit 260. It consists of.

The up cover part 210 is provided on the crosswalk surface, and the pedestrian 20 recognizes a signal to stop and wait before the walking signal is changed by LED blinking, which has a gentle forward slope when viewed from the side view. A cover body having a steep slope is formed, and a light guide plate for reflecting light emitted from the LED module to the outside is formed at the tip of the cover body.

Then, a plurality of circular white coatings are formed to protrude from the rear end of the cover body, and a plurality of screw grooves are formed at one side of the side edge.

The dispersion unit 220 is made of a polycarbonate material and is rotated according to the rotation of the left and right guide motors in the vertical direction, thereby controlling the irradiation angle to reflect the light emitted from the LED module to the light guide plate.

The LED module 230 is composed of a plurality of LEDs, and emits light according to the control signal of the controller 520, which is made of a rectangular panel-shaped PCB substrate and is mounted in the central hole of the down cover part.

The down cover portion 240 is located at the bottom of 1cm ~ 20cm from the crosswalk surface, made of a rectangular box-shaped body, half-shaped fitting grooves are formed on both sides of the body. And, a rectangular seating groove is formed in the center of the body, the LED module is configured to be seated. In addition, a screw groove is formed at one side of the upper end of the body of the down cover part, and a bolt penetrated through the screw groove of the up cover part is inserted.

Coupling portion 250 is a side of one side of the anti- arc fitting jaw is protruding to one side is fitted into the fitting groove of the down cover portion serves to engage with the crosswalk block. It consists of a rectangular panel-shaped body, half-shaped fitting jaw is formed on both sides of the body.

The base cover part 260 is located at the bottom of the square seating groove of the down cover part, and serves to safely support the down cover part in the lower direction.

Referring to FIG. 7, the pedestrian block 200 according to the present invention includes a piezoelectric power generation module 300 generating shear electricity by generating shear strain on a piezoelectric member by external force at a lower end thereof.

The piezoelectric power generation module 300 includes a piezoelectric battery plate 310, an elastic spring part 320, an external force transmitting part 330, and a piezoelectric member 340.

The piezoelectric battery plate 310 is in contact with the bottom surface of the pedestrian block 200 serves to transfer the external force generated in the pedestrian power generation block 500 to the external force transmission unit 330.

The elastic spring unit 320 is inserted into the head joint of the external force transmission unit 330 and serves to repeatedly generate an external force to the external force transmission unit by the elastic force and the restoring force.

The external force transmitting unit 330 is bonded to the second electrode of the piezoelectric member 340 and the third electrode of the piezoelectric member, and serves to transmit external force to the piezoelectric member 340 by elastic force and restoring force of the elastic spring portion.

Referring to FIG. 8, the piezoelectric member 340 generates shear deformation by the external force transmitted from the external force transmission unit to generate electricity. The piezoelectric member 340 has one surface and the other surface located on the opposite side of the one surface, and the first piezoelectric member 341b and the first piezoelectric member 341b formed on one surface of the first piezoelectric body 341b having shear deformation caused by external force. A first piezoelectric member 341 made up of an electrode 341a, a second electrode 341c formed on the other surface of the first piezoelectric member 341b, and the other surface positioned on the opposite side of one surface and one surface thereof. A second piezoelectric body 342b in which shear deformation is caused by the second electrode, a third electrode 342a formed on one surface of the second piezoelectric body 342b, and a fourth electrode 342c formed on the other surface of the second piezoelectric body. It is composed of a piezoelectric member 342.

The piezoelectric member is formed by selecting any one of PZT (Pb (Ti, Zr) O3), Ba2TiO4, BaTiO3, and generates a voltage by the force applied to the piezoelectric member, and the voltage generated according to the magnitude of the applied force. The amount of is changed.

The AC power supply unit 400 is installed on one side of the piezoelectric power generation module 400 and serves to supply power to each device by receiving AC power, which is configured by connecting a lithium ion battery pack body to one side. The AC power supply unit 400 receives AC power by wire, connects to the lithium ion battery pack body through DC conversion, and then charges the lithium ion battery.

The control unit 500 is connected to the piezoelectric power generation module 300 and the AC power supply 400 to control power to each device, and to control the crosswalk pedestrian signal and the vehicle stop line LED cube block operation signal for each cycle. , It is composed of a rectangular box-shaped body, a lithium ion battery pack body inside the body, and a control module at the bottom of the lithium ion battery pack body. The control module consists of a power transformer 510 and a controller 520.

The power transformer 510 converts electric power to supply the electricity generated by the piezoelectric power generation module 300 to be supplied down by the capacity of the lithium ion battery. The DC / DC converter unit, the buffer unit, and the first D / It consists of an A converter section, an amplifier section, and a DAR transistor. The DC / DC converter unit has a step-down converter function, and the electricity SOL_POWER generated by the piezoelectric power generation module 300 is configured to be converted to power by lowering about 1V higher than the capacity of the lithium ion battery.

When the controller 520 sends the current charging voltage state of the lithium ion battery to the buffer unit as an 8-bit digital signal, the controller unit transmits it to the D / A converter, and the current charging voltage is converted from the D / A converter to the reference voltage (4.2V). After the comparison operation, if the reference voltage (4.2V) or less, the turn-on driving current of the DAR transistor flows to the positive terminal of the amplifier connected to the output terminal. The amplifier amplifies the turn-on driving current of the DAR transistor output from the D / A converter and flows it to the base terminal of the DAR transistor. At this time, when the DAR transistor turn-on driving current is applied, the charging voltage (5.2 V) at the collector terminal of the DAR transistor is charged to the lithium ion battery through the emitter terminal. Accordingly, the electric and commercial power (18V ~ 50V) generated in the piezoelectric power generation module 300 is charged through the power transformer 510 according to the control signal of the controller. The control unit 520 receives the converted power through the power transformer 510 and sends a wake-up driving signal to each device, and is connected to the piezoelectric power generation module 300 and the AC power supply unit 400 to supply power to each device. It controls to make, and to control the crosswalk pedestrian signal, vehicle stop line LED cube block operation signal for each cycle. It consists of an 89C52 8-bit microcontroller.

Hereinafter, a detailed operation process of the stop line LED cube block system according to the present invention.

The electricity generated through the piezoelectric power generation module 300 is supplied to each device under the control of the control unit 500.

Then, under the control of the control unit 500 is supplied with AC power through the AC power supply unit 400 to supply power to each device.

Then, the control unit 500 controls the stop line LED cube block 100 operation signal for every 20 seconds to 60 seconds.

Then, electricity is generated when the crosswalk pedestrian 20 passes by the pedestrian block 200.

In addition, the stop line LED cube block 100 visually recognizes a signal to stop and wait until the driver of the vehicle 10 changes to a vehicle driving signal by blinking the LED.

Here, the light projection adjusting unit 150 ′ of the stop line LED cube block 100 inclines the direction of the light beam emitted from the light beam adjusting light source unit 130. This is operated by the user adjusts and installs the light projection adjusting unit 150 'of the stop line LED cube block 100, the operation process is as follows. When the user applies an action force to the first push module 151, the first moving module 152 is pushed. When the first moving module 152 is pushed, the first inclination module 153 connected thereto rotates the first rotation module 154 about its axis so that the direction of the luminous flux emitted from the luminous flux adjusting light source unit 130 is inclined. When the action force added to the first moving module 152 is added to the elastic module 160 and the action force exceeds a critical point according to the degree of elasticity of the elastic module 160, the second push module 151 ′ is pushed to the right. do. When the second push module 151 'is pushed to the right, the second moving module 152' is pushed to the right, and accordingly, the second inclination module 153 'is made with the second rotating module 154' as the axis. This rotation is inclined so that the direction of the luminous flux emitted from the luminous flux adjusting light source unit 130 is inclined. The plurality of luminous flux control light source units 130 of the plurality of stop line LED cube blocks 100 are connected in parallel, and the block circuit unit 190 is connected to the piezoelectric power generation module 300 to supply power.

In order to determine the illuminance and luminance for each angle of the LED light source to be transmitted to the driver of the vehicle 10 in the stop line LED cube block 100, the same test as in the following experimental example was performed.

Experimental Example

Experiment 1

As shown in Fig. 9 (a) to 9 (c), LED buried stop line is effective to effectively recognize the stop line at night. Find out the illuminance and brightness of each light. When viewed from the side, illuminance and luminance are measured at the same position. However, in the limited space, point A was measured at a higher level (to make a slight difference), which is most affected by the light intensity.

Illuminance value measurement by angle (lux)

Point A is 200cm from the LED buried light in the vertical direction, and points B and C are the driver's field of view height. A place 150cm away from the floor (130cm except 20cm in height such as a landfill) was set, and illuminance was measured from the front of each point.

Point angle
30 ° roughness 45 ° roughness 60 ° roughness A
64 Lux 107 Lux 218 Lux B
37 Lux 49 Lux 37 Lux C
9 Lux 14 Lux 14 Lux

The illuminance value for each angle was 60 degrees, the widest range of roughness.

Measurement of luminance value by angle (cd / ㎡)

Luminance was measured at 1 m in front of each of A, B, and C points. The luminance meter had a slight change in value, making it easy to recognize the change in difference.

Point angle
30 ° luminance 45 ° luminance 60 ° luminance A
0.235 0.866 0.611 B
0.036 0.175 0.059 C
0.175 0.204 0.067

Result of Experiment 1

9 (a) to 9 (c) illustrate experiments for measuring illuminance and luminance of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each angle according to Experiment 1 of the present invention. It is a photograph.

9 (a) to 9 (c), the angles with the large difference in illuminance values according to the position for each angle were in order of 60 °> 45 °> 30 °. As a result of measuring the illuminance value for each angle, the landfill of 60 degrees had the largest difference in illuminance. 60 degrees is an angle close to the vertical angle, the light was also strongly spread in a wide direction. However, such a large illuminance difference in a small area means faster eye fatigue. The illuminance is converted into a physically calculated value, but the human eye perceives the light and dark of the space by the relative brightness. Therefore, if the value suddenly differs a lot, it may cause fatigue to the driver's vision as confirmed by the illuminance value. When the luminance value was measured for each angle, the luminance value such as 45 ° landfill was the highest. Since luminance is a value considering the reflective surface of light, it was found that the brightness of 45 ° was the brightest.

Experiment 2

As shown in Figure 10 (a) to Figure 10 (c), it looks at the angle does not interfere with the driving view at the driver's position. The illuminance and brightness are measured by setting a point in front of the driver's course in the driving direction.

Result of Experiment 2

10 (a) to 10 (c) are angles of 30 degrees (a), 45 degrees (b), and 60 degrees for each angle to obtain an angle that does not interfere with the driving field of view at the driver's position according to Experiment 2 of the present invention. (c) A photograph showing an experiment for measuring illuminance.

10 (a) to 10 (c), as a result of measuring the illuminance value and the luminance value of the forward field of view in the driver's direction, the luminance value also increased when the illuminance value was large. As the angle of the buried light increases, the intensity of the light from the front side increases, so that the intensity, illuminance value, and luminance value of the light are proportional. When viewed from the front, no significant difference was found between the 45 ° and 60 ° landfills. From the front, the light at the 30 ° stop line is the brightest on the road.

Experiment 3

As shown in Figure 11 (a) to Figure 11 (c), it looks at the distribution of visual light for each angle.

Result of Experiment 3

11 (a) to 11 (c) are photographs showing the distribution of light at 30 degrees (a), 45 degrees (b), and 60 degrees (c) for each visual angle according to Experiment 3 of the present invention.

11 (a) to 11 (c), in the photograph of the distribution of light, as the angle increases, the intensity of the light emitted from the entrance of the buried light is bright, and the light spread is different. In the contour image, the light intensity of the buried light is high in the order of 60 °> 45 °> 30 °, and the light extends at an angle close to the vertical direction. Landfill lamps of 30 ° are low angles, and the role of the stop line is most noticeable, but it is not enough to spread light over a wide range. At 45 ° and 60 °, the light is strong and the light spreads out over a wide range.

The results of Experiment 1, Experiment 2 and Experiment 3 are summarized as follows.

The angle (side) with the large difference in illuminance value according to the position of each angle was found in the order of 60 °> 45 °> 30 °.

The angles (sides) with the higher luminance values according to the position of each angle were in the order of 45 °> (30 °, 60 °) (30 °, 60 ° has a lower luminance than 45 ° and differs depending on the angle). .

The angle (side) with a large difference in luminance value according to the position of each angle was found in the order of 60 °> 45 °> 30 °.

At the driver's position by angle, the brightness of the stop line (front, driver's heading) was in the order of 30 °> 45 ° = 60 °.

At the driver's position by angle, the illuminance values (front, driver's direction of travel) were in order of 60 °> 45 °> 30 °.

At the driver's position by angle, the luminance values (front, driver's direction) were found in the order of 60 °> 45 °> 30 °.

Analysis of the distribution of light perceived by humans was in order of 60 °> 45 °> 30 °.

In summary, the experimental results indicate that 30 ° was the strongest of the stop line's lights if one considered the function of the stop line. However, it is expected that several vehicles from far away will not be effective compared to other angles.

 Looking at the visual distribution of the light, the 45 ° and 60 ° ranges or widens, but the 60 ° stop line has more intense light extending vertically and the driver's eyes are fatigued at the angle with the greatest intensity difference between sections. It is considered to be able to affect.

 You can see that the light of 45 ° is wider than the 60 ° in the driver's direction. 45 ° is the highest brightness per unit area, the brightness per unit area is the brightest.

When all angles were tested, it was confirmed that the illuminance value and the luminance value were proportional.

Proper light can create some strain on the driver. However, if the light is insufficient or excessive, the function may disappear. Light that spreads far away is best if you want to be tense but not obstruct your driving directions.

45 ° is not much difference in the illuminance of the light, and the brightness is evenly high, so the driver is not expected to feel tired when traveling from afar.

By adjusting the luminous flux adjusting light source unit 130, the light guide unit 150, and the light projecting unit 170 of the stop line LED cube block 100 of the present invention by using the results of Experiment 1, Experiment 2 and Experiment 3, Optimum visibility can be secured by adjusting luminous flux, luminous intensity, illuminance and luminance. Here, as shown in the experimental example of the present invention, the illuminance and the luminance are proportional to each other, and most preferably projected at an angle of 45 degrees.

While various embodiments of the present invention have been described with reference to some examples, the descriptions of the various embodiments described in the "Specific Embodiments of the Invention" section are merely illustrative, and the present invention has been described. Those skilled in the art will understand from the above description that the present invention can be variously modified or implemented in accordance with the present invention.

In addition, the present invention is not limited by the above description because it can be implemented in a variety of other forms, the above description is intended to complete the disclosure of the present invention is usually in the technical field to which the present invention belongs It should be understood that the present invention is provided only to fully convey the scope of the present invention to those skilled in the art, and the present invention is defined only by the claims of the claims.

Vehicle (10)
Pedestrians (20)
Stop Line LED Cube Blocks (100)
Case part 110
Current regulator (133)
On-off control part (135)
Luminous flux adjusting light source unit 130
Light guide part 150
Light Projection Adjustment Unit (150 ')
First push module 151
Second push module 151 '
First moving module 152
Second moving module 152 '
First inclination module 153
Second inclined module 153 '
Third Slope Module (153 '')
First rotating module 154
2nd rotating module 154 '
Third rotating module 154 ''
Projection Projection Unit (170)
Coupling Module (180,180 ')
Block circuitry 190
Pedestrian Blocks (200)
Up Cover Part 210
Disperser 220
LED module (230)
Down cover part 240
Coupling Part 250
Base cover part 260
Piezoelectric Power Generation Module (300)
Piezo battery board 310
Elastic spring part 320
External force transmission unit (330)
Piezoelectric Member 340
First piezoelectric member 341
First electrode 341a
First piezoelectric body 341b
Second electrode 341c
Third electrode 342a
Second piezoelectric material 342b
Fourth electrode 342c
Second piezoelectric member 342
AC power supply unit 400
Control part 500
Power transformer 510
Control unit 520

Claims (11)

In the stop line LED cube block system installed at the vehicle stop line of the crosswalk,
A plurality of stop line LED cube blocks (100);
A plurality of the pedestrian blocks 200 provided on the crosswalk and sidewalks; And
A plurality of piezoelectric power generation modules 300 provided at a lower end of the pedestrian block 200; Characterized in that comprises a,
Stop line LED cube block pedestrian crossing system.
The method of claim 1,
The stop line LED cube block 100
Case portion 110 of the rectangular parallelepiped consisting of a pressure-resistant material;
A luminous flux adjusting light source unit 130 mounted inside the case unit 110 and having a current adjusting unit 133 and an on / off adjusting unit 135 to adjust luminous flux;
A light guide part 150 connected to the luminous flux adjusting light source part 130 and having a light projection adjusting part 150 'for adjusting luminous intensity, illuminance and brightness; And
A light projection part 170 connected to the light guide part 150 and provided on an outer surface of the case 110; Characterized in that it comprises a,
Stop line LED cube block pedestrian crossing system.
The method of claim 2,
The optical guide unit 150 includes a first push module 151, a first moving module 152, a first tilt module 153, and a first rotation module 154.
The light projection adjusting unit 150 'includes a second push module 151', a second moving module 152 ', a second tilt module 153', a second rotation module 154 ', and a third tilt module ( 153 ''), characterized in that it comprises a third rotary module 154 '',
Stop line LED cube block pedestrian crossing system.
The method of claim 3,
The light projection adjusting unit 150 ′ further comprises a plurality of elastic modules 160,
Stop line LED cube block pedestrian crossing system.
The method of claim 4, wherein
The light projection adjustment unit 150 ′, characterized in that to form a structure in which the light source is projected at an angle of 45 degrees with respect to the traveling direction of the vehicle 10,
Stop line LED cube block pedestrian crossing system.
The method of claim 2,
Characterized in that the plurality of stop line LED cube block 100 is composed of a fitting structure that is engaged with the coupling module 180, 180 'connected in parallel,
Stop line LED cube block pedestrian crossing system.
The method of claim 6,
A plurality of the luminous flux control light source unit 130 of the plurality of stop line LED cube block 100 is connected in parallel, characterized in that the block circuit unit 190 is connected to the piezoelectric power generation module 300 and is closed. doing,
Stop line LED cube block pedestrian crossing system.
The method of claim 1,
The pedestrian block 200 is
An up cover unit 210 through which the pedestrian waiting signal is projected by the blinking LED;
A dispersion unit 220 made of a polycarbonate material and rotated according to the rotation of the left and right guide motors in a vertical state to adjust the irradiation angle to reflect light emitted from the LED module to the light guide plate;
A plurality of LEDs configured to emit LEDs according to a control signal of the controller 520;
A down cover portion 240 formed of a rectangular box-shaped body and having half arc-shaped fitting grooves formed at both sides of the body;
A coupling part 250 having one side of both corners protruding with a half arc-shaped fitting jaw so that one side is fitted into the fitting groove of the down cover part and fastened to the pedestrian block 200; And
Located at the bottom of the square seating groove of the down cover portion 240, characterized in that it further comprises a base cover portion 260 to securely support the down cover portion 240 in the lower direction,
Stop line LED cube block pedestrian crossing system.
The method of claim 1,
The piezoelectric power generation module 300
A piezoelectric battery plate 310 in contact with the bottom surface of the pedestrian block 500 to transmit external force generated by the pedestrian block 500 to the external force transmission unit;
An elastic spring 320 inserted into the head joint of the external force transmission unit to repeatedly generate an external force to the external force transmission unit by an elastic force and a restoring force;
The first piezoelectric member 341 and the second electrode 341c of the first piezoelectric member 341 and the third electrode 342a of the second piezoelectric member 342 are bonded to each other by the elastic force and the restoring force of the elastic spring portion. An external force transmission unit 330 for transmitting an external force to the second piezoelectric member 342;
The first piezoelectric body 341b, the first electrode 341a, and the second electrode 341c have a configuration such that shear deformation is generated by the external force transmitted from the external force transmitting unit 330 to generate electricity. A piezoelectric member 340 composed of a piezoelectric member 341, a second piezoelectric member 342b having a configuration of a second piezoelectric member 342b, a third electrode 342a, and a fourth electrode 342c; Characterized in that it further comprises,
Stop line LED cube block pedestrian crossing system.
The method of claim 2,
An AC power supply unit 400 receiving AC power to supply power to each device; And
A control unit 500 connected to the AC power supply unit 400 for controlling power to be applied to each device, and controlling a stop line LED cube block operation signal for each period; Characterized in that it further comprises,
Stop line LED cube block pedestrian crossing system.
The method of claim 10,
The control unit 500 is
A power transformer unit 510 for converting electric power to be supplied by lowering electricity generated by the piezoelectric power generation module 300 according to a capacity of a lithium ion battery;
Receives the converted power through the power control unit (Power Control) to send a wake-up driving signal to each device, connected to the piezoelectric power generation module 300 and the AC power source 400 to apply power to each device A control unit 520 for controlling and controlling a vehicle stop line LED cube block operation signal; Characterized in that it further comprises,
Stop line LED cube block pedestrian crossing system.

Images