KR101692325B1 - Safety guidance lamp for road having function chainging color - Google Patents

Abstract

The present invention discloses a visual guidance lamp for a road, which can significantly reduce costs required to manufacture a visual guidance lamp, and which can automatically change color of the visual guidance lamp based on a surrounding environment. The visual guidance lamp according to the present invention, which includes a lower frame accommodating a control device adapted to measure the amount of fog or humidity and to change color of an LED based on a result of the measurement, comprises a humidity sensor adapted to output an electrical signal in accordance with surrounding humidity. In this case, the control device charges a battery by using power generated by a voltage measurement unit, manages a voltage, stored in the battery, to be applied as a system voltage, determines whether it is daytime or nighttime based on a voltage output by the voltage measurement unit, and selectively controls the LED to be turned on or off. The control device turns off the LED during daytime, and turns on the LED and controls color of the LED in accordance with the humidity during nighttime. Accordingly, the visual guidance lamp according to the present invention can change color of the visual guidance lamp based on a state of fog on a road, a state of change in surrounding illuminance, and a state of traffic without a separate sensor for detection of fog, a sensor for detection of surrounding illuminance, and a sensor for detection of vehicle speed, thereby providing an effect in which system manufacturing costs can be significantly reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety guidance lamp for a road,

The present invention relates to an induction lamp, and more particularly, to an induction lamp that does not include a separate fog detection sensor, an ambient illuminance sensor, and a vehicle speed detection sensor, And a color change function capable of changing the color and inducing the safety of driving the vehicle.

Generally, the gaze guidance light is already provided in various forms and is equipped with a reflector and a light emitter which emit light so as to perform the role and function for guiding safe operation of the driver. Thus, in the case of a gaze guidance light with a reflector, the headlight light of the vehicle is reflected through the reflector, and the driver recognizes the light to distinguish the lane. In the case of the gaze guidance light equipped with the luminous body, After charging, the light is generated using the energy charged at night, so that the driver can distinguish the lane through the light.

The above-mentioned gaze guidance lamps have been highlighted in terms of functionality and efficiency through a gaze guidance lamp control device having a color change function as in the following patent documents filed by the present inventor.

In other words, the state of the solar cell is recognized to determine the main / night, the vehicle operation state is detected by the object detection sensor, and the color of the gaze direction lamp is changed from the result. 1, the solar cell 205 includes a solar cell 205 for converting solar energy into electric energy, a battery 207 for storing electric energy provided from the solar cell 205, A voltage detection unit 209 for detecting the voltage of the electric energy and converting it into a digital signal, an object detection sensor module 213 for detecting a signal reflected according to the vehicle running state, a humidity sensor module 215 A lamp 217 such as a line of sight flow including a plurality of LED elements, a switching unit 211 for turning on and off the gaze indicator lamp 217, And determines the ambient humidity from the humidity sensor module 215. If it is determined that the humidity is lower than the reference value and is a daytime, the energy generated from the solar cell 205 is supplied to the battery 207 Supply And controls lighting of the gaze indicator lamp 217 through the switching unit 211 when it is determined that the humidity is equal to or higher than the reference value or that it is nighttime and controls the gaze indicator lamp 217 based on the detection signal of the object detection sensor module 213 And a control unit 201 for instructing a change in lighting of the display unit 217.

The color of the gaze direction lamp 217 is changed by the control unit 201 according to the driving environment of the vehicle. In the normal state, the color of the gaze direction lamp is turned on as 'YELLOW' If it passes through the position, it can detect it and change the color of the sight guide lamp to 'BLUE'. That is, when the vehicle enters or passes through an arbitrary position, the gaze indicator lamp 217 is turned on as 'BLUE'.

This changes the color of the gaze indicator lamp 217 when the vehicle approaches the toll gate, thereby causing the driver to give a lane to the driver, or at least to stably induce the driver's gaze. Of course, the gaze guidance lamp disclosed in the present invention can induce the same effect even if it is installed in curved roads, steep slope areas, etc. in addition to tollgate.

However, in realizing the above-mentioned gaze guidance light, it is judged whether or not the road is misty using a separate humidity sensor. In addition to detecting the driving state of the vehicle by the object detection sensor module, So that there is a problem in that the manufacturing cost of the gaze guidance lamp is increased. Furthermore, when the ambient illuminance is measured using the solar cell, errors occur in determining the ambient illuminance when the light emitting element for guiding the visual line is turned on, thereby deteriorating the stability of the system operation.

Korean Registered Patent No. 10-1030282, filed on April 13, 2011, entitled "

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a fog detection system, a peripheral illumination sensor and a vehicle speed detection sensor, The color of the guide light is changed according to the driving state of the vehicle so as to induce safety of driving the vehicle.

Another object of the present invention is to provide a method of calculating a concentration of fog or humidity using the fact that a beam emitted from a traveling vehicle is scattered by mist or the like and the light amount of a light receiving light source is varied, So that the color of the corresponding guide light can be changed to enable the road situation to be recognized from a distance.

In order to achieve the above object, according to an aspect of the present invention, a roadside guidance lamp having a color change function is embedded in a road after being fastened at a lower portion of an upper frame, And a control unit for controlling the color of the LED according to the result of the calculation of the amount of mist or humidity based on the variation of the light amount of the light sensor mounted on the sensor hole, The upper frame having a penetrating structure having an opening at an upper portion thereof and having a safety protrusion protruding from an edge of the opening portion, wherein the sensor hole is provided so as to oppose on an outer circumferential surface and is led into a lower portion of the upper frame, A lens for condensing the light emitted from the light source, a lens for supporting the lens downward, Comprising a support frame provided with a communication hole to guide the wire, and; The lower frame includes a fastening portion for screwing the upper frame and the lower frame, and a plurality of embedding projections on the outer circumference of the lower frame. The humidity indicator includes a humidity sensor for outputting an electrical signal corresponding to the ambient humidity ; The control device charges the power generated by the voltage measuring part with a battery and operates the charging voltage of the battery to apply the system voltage. The control device determines the daytime and the nighttime based on the detected voltage of the voltage measuring part, The LED is turned off during the daytime, and the lighting and color control of the LED are performed in response to the humidity of the humidity sensor at night.

The control device according to the preferred embodiment of the present invention lights the color of the LED to white when the humidity amount is normal to less than the reference value range, lights the LED to yellow when the humidity amount is within the reference value range, The color of the LED flashes in yellow.

Further, the reference value of the humidity amount according to a preferred embodiment of the present invention is 50% to 70%, the LED is a three-color LED, the luminance is controlled according to the PWM method, and the gaze indicator is a deliner .

The roadside guidance lamp having the color changing function according to the present invention does not have a separate fog detection sensor, ambient illuminance sensor, and vehicle speed detection sensor, and can detect a fog generation state, a peripheral illumination variation state, It is possible to reduce the manufacturing cost of the system by changing the color of the guide light. Further, the fog or the concentration of the humidity is calculated by using the fact that the beam emitted from the traveling vehicle is scattered by mist or the like and the light amount of the light receiving light source is varied. Then, based on the result of calculation, the color of the guide light corresponding to the concentration of mist or humidity It is possible to recognize the road situation from a long distance, so that the stability of the vehicle operation can be improved.

FIG. 1 is a view for explaining a conventional gaze guidance lamp.
2 is a perspective view showing a roadside guidance lamp according to the present invention.
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
FIG. 4 is a configuration diagram for explaining the main function of FIG. 2. FIG.
5 is a graph showing a change in light amount of a vehicle headlamp corresponding to the amount of mist or humidity according to the present invention.
FIG. 6 is a perspective view showing a roadway delineator for visual guidance shown in another embodiment of the present invention. FIG.
FIG. 7 is a configuration diagram for explaining the main function of FIG. 6. FIG.
Fig. 8 is a flowchart for explaining the operation of Fig. 7. Fig.
9 is a photograph showing the operation of FIG.

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

First, the gaze guidance lamp proposed in the present invention illustrates a structure that is embedded in the center line of a road, but may be applied to a side of a road or a structure that is fastened on a road guide rail. Further, in the present invention, a fog or humidity is measured using an optical sensor (photo sensor) without using a separate fog detection sensor, and the lighting of the gaze guidance lamp corresponding thereto is controlled. The vehicle speed can be predicted based on the light amount of the vehicle headlight entering the optical sensor, and a warning can be given to the vehicle speed.

Fig. 2 is a perspective view showing the gaze guidance lamp 200. Fig. 2 is a perspective view of the gaze guidance lamp 200. Fig. 2 is a perspective view of the gaze guidance lamp 200, The upper frame 201 and the upper frame 201. The structure of the system is constructed such that ambient light intensity measurement using a solar cell and solar charging are performed as a structure embedded in the road after being fastened at the lower part of the upper frame 201, And a lower frame 221 including a control device for calculating the amount of mist or humidity using an optical sensor mounted on the light guide 203 and changing the lamp color of the guide lamp according to the result.

A plurality of embedding projections 223 are provided on the outer circumferential surface of the lower frame 221 so that the gaze direction lamp 200 is prevented from being released or drawn out after being buried on the road. In addition, the lower frame 221 may be formed of a metal material or may be formed of a plastic material, and the shape of the embedding projection 223 may be deformable.

The gaze guidance lamp 200 exemplified in the present invention does not require a separate power wiring by using electric energy generated from a solar cell using a secondary battery, that is, a battery, by using the battery. However, it is natural that external power can be used in consideration of the environment of the road or the manufacturing cost of the system.

3 is an exploded perspective view of a gaze guidance lamp according to the present invention.

As shown in the figure, the visual guide light 200 has a penetrating structure having an opening portion 301 at an upper portion thereof, and has a safety protrusion 303 protruding from the rim of the opening portion 301, An upper frame 201 made of a metal having a sensor hole 203 on which a light sensor 335 is mounted to receive a headlight light source of the headlamp, A support frame 311 having a communication hole 305 for supporting the lens 205 downward and guiding the wiring of the optical sensor 335 drawn into the sensor hole 203, A lower frame 221 having a plurality of embedding projections 223 formed on an outer circumferential surface thereof and having a fastening portion 315 for screwing the upper frame 201 and the lower frame 221, A solar cell 331 that develops in accordance with the surrounding roughness, An operation panel 321 including a plurality of LEDs 333 disposed in the lower portion of the operation panel 321 to determine the lighting of the guide light according to the ambient illuminance and to detect a change in the amount of light received from the light sensor 335 And controlling the lighting color of the guide lamp to be changed correspondingly to the result of the calculation of the fog or humidity amount based on the result of the calculation of the fog amount or the humidity amount of the solar cell 331, And a battery 325 for charging the electric energy generated from the battery 323 and supplying the charged energy to the PC 323. [

In order to improve watertightness in the process of fastening the upper frame 201 and the lower frame 221, a locking protrusion 341 is provided at the lower end of the locking part 315 of the lower frame 221, A rubber ring 313 may be provided between the upper frame 201 and the upper frame 201.

At least one or more sensor holes 203 are provided so as to face each other. By providing the optical sensors 335, the LEDs 333 can be blink-controlled when the vehicle is traveling in opposite directions. This is to impose the position of the lane to each driver when the glare caused by the headlight of the opposite vehicle occurs.

The lens 205 is used for condensing an external light source. When the efficiency of the solar cell 331 is high, a glass panel can be used. Even if the lens 205 or the glass panel is used, will be.

The safety jaw 303 provided at the rim of the opening 301 of the upper frame 201 protects the lens 205. When the lens guiding light 200 is pressed by the vehicle, . That is, the diameter of the upper frame 201 is approximately 110 mm to 150 mm, so that when the tire of the vehicle presses the upper end of the upper frame 201, the lens 205 can not be directly pressed. The safety jaw 303 may be formed to have a height of approximately 2 mm to 5 mm.

The lens guide 205 is inserted in the lower portion of the upper frame 201 to closely contact the opening 301. Thereafter, an optical sensor 335 is installed in the sensor hole 203, a photodiode of an LED structure, a phototransistor, or a cadmium sensor (CDS) may be used as the optical sensor 335. The optical sensor 335 is connected to a connector to be coupled to the PCB 323.

After the optical sensor 335 is mounted on the sensor hole 203, the support frame 311 is inserted into the sensor hole 331. The support frame 311 is connected to the optical sensor 335 through the communication hole 305, .

The lower frame 221 has a top opened structure and a battery 325 is placed at the lower end of the lower frame 221. The battery 325 is inserted into the upper part of the battery 325, And the PCB 323 are electrically connected to each other. An operation panel 321 is provided on the upper portion of the PCB 323 and the operation panel 321 is disposed close to the open side of the lower frame 221 so that the distance between the lens 205 and the operation panel 321 Minimize it.

After the battery 325, the PCB 323 and the operation panel 321 are inserted into the lower frame 221 as described above, the rubber ring 313 is inserted into the latching protrusion 341 of the lower frame 221 I will post it. By tightening the lower frame 221 and the lower frame 221 together, the water-tightness by the rubber ring 313 can be maintained.

In the present invention, the upper frame 201 and the lower frame 221 are screwed to each other. However, it is a matter of course that a known technique can be applied to determine the fastening method. And the lower frame 221 may be used by friction joining, thermal bonding, ultrasonic joining, or the like.

4 is a block diagram for explaining a control apparatus according to the present invention.

As shown in the figure, the control device 400 proposed in the present invention includes a voltage measuring unit 403 for measuring a voltage detected from the solar cell 331 and converting the measured voltage into a digital signal, A memory 405 for storing a change in the degree of roughness of the vehicle headlight received by the optical sensor 335 according to a current state of the fog or humidity as table map information, And controls the lighting of the LED 333 based on the detection voltage of the voltage measuring unit 403. The LED 321 is connected to the battery 325 via the battery 325, The present vehicle headlight light source received by the light sensor 335 is compared with the table map information stored in the memory 405 to determine the current fog or humidity state and the LED 333 is controlled according to the fog or humidity state, And the control unit 401 indicative of a color change, in accordance with an instruction of the control unit 401 supplies a rated power to the LED 333, and a driver 407 for performing switching for a color change.

Here, the controller 401 recognizes the fog or humidity state based on the table map information, but the data stored in the memory 405 does not hold the table map information based on the experimental data, and the brightness of the headlight of the nearby vehicle After storing the reference graph information in which the change is graphically displayed, it is possible to predict the amount of mist or humidity based on the differential value with respect to the currently detected change in headlight brightness.

That is, the memory 405 stores, as reference graph information (data), a light amount change of a light source irradiated from a vehicle in which there is no fog, humidity, or below a reference value, and the control unit 401, (Differential value) of the light amount variation is in the same or similar range as the differential value in the reference graph information is searched for, and then the difference between the reference graph and the current light amount variation amount And calculates the amount of mist or humidity in proportion to the difference value.

5 is a graph showing a change in light amount of a vehicle headlamp corresponding to fog or humidity.

The amount of light is varied by the fog or humidity when the amount of light irradiated by the vehicle headlight is received by the optical sensor 335. When the amount of light received is low when the amount of mist or humidity is high, .

As shown in the figure, the reference graph is a graph showing the light receiving state of the light source by the vehicle headlamp at night when the fog or humidity is in the normal range. This is because the light received by the vehicle headlight is received when the vehicle is approaching at about 300 meters ahead of the vehicle, and the amount of light received at the time of approaching within a predetermined distance of the vehicle increases rapidly. When the vehicle passes the peak, It is a pattern in which the amount of received light falls to zero.

On the other hand, when there is fog or humidity around, the amount of received light of the light source irradiated from the vehicle headlamp decreases in proportion to the amount of mist or humidity, and the graph distortion at this time is insufficient. That is, the reference graph has a pattern in which the reference graph moves downward in proportion to the amount of mist or humidity.

Therefore, in the embodiment of the present invention, the amount of received light corresponding to the amount of fog or humidity is graphically stored in the memory 405 as table map information, the current detected amount of light is compared with the table map information, To predict.

In another embodiment of the present invention, the current fog or the amount of humidity can be predicted by calculating the difference between the reference graph and the current light receiving amount change by comparing the change of the currently detected light receiving amount based on one reference graph. That is, after calculating the differential value based on the current change in the received light amount, a position having the same or similar range as the differential value calculated in the reference graph is selected, and the interval between the current light receiving amount change and the reference graph is calculated.

Since the interval between the reference graph and the current light receiving amount change is proportional to the amount of mist or humidity, the present invention changes the color of the LED 333 by the proportional value instead of measuring the absolute mist or humidity.

The color of the LED 333 may be a white color when the fog or humidity is in a normal range below the reference value, a yellow color when the fog or humidity is a reference value, or the fog or humidity exceeds the reference value The yellow color can be blinked. Of course, it is possible to change the color depending on the regulations and environment.

Hereinafter, the operation of the control apparatus 400 according to the present invention will be described.

The solar cell 331 generates electric energy according to the illuminance of the surroundings, and the generated electric energy is supplied to the battery 325 through the diode. The diode determines the supply direction of the electric power, and it is possible to induce the charging of the battery 325 to be stably performed using the zener diode.

The voltage measuring unit 403 converts the output voltage into an AD signal by converting the output voltage into a digital signal and provides the digital signal to the controller 401 to continuously monitor the generated power of the solar cell 331. The control unit 401 identifies the day and the night based on the voltage generated from the solar cell 331. This determines whether the voltage output from the voltage measuring unit 403 exceeds the reference value range or below the reference value range, and repeatedly measures the voltage for the set time period to determine the day / night.

As a result of the determination by the controller 401, if it is determined that it is a daytime, the controller 401 maintains the lighted state of the LED 333. On the other hand, if the control unit 401 determines that it is nighttime, the driver 407 instructs the LID 333 to turn on. At this time, the controller 401 continuously detects the amount of light received from the optical sensor 335 and compares it with the table map information previously registered in the memory 405.

The table map information is obtained by storing, as a graph or data, the amount of change in the amount of received light of the light source irradiated from the vehicle headlamp according to the amount of ambient fog or humidity. The table map information is used to search for a pattern closest to the currently received light amount change, Or the amount of humidity.

In another embodiment of the present invention, when information corresponding to a reference graph is stored in the memory 405, the control unit 401 calculates a change in the amount of light received, that is, a differential value currently detected from the optical sensor 335 , And searches for a position on the reference graph stored in the memory 405 in the same or similar range as the differential value. Then, the controller 401 predicts the amount of mist or humidity by calculating the difference between the received light amount corresponding to the position on the searched reference graph and the currently detected light receiving amount.

For example, the difference between the light receiving amount on the reference graph and the presently detected light receiving amount on the reference graph in a similar range to the currently detected differential value is calculated. If the difference value is 10%, the mist or humidity amount is assumed to be 10% . The numerical analysis on the amount of mist or humidity is meaningless because it is applied as a means for changing the curtain of the LED 333 when the magnitude of the difference value exceeds the reference value.

The control unit 401 determines the fog or humidity state around the road based on the received light amount of the light sensor 335 and the pattern stored in the memory 405 and determines the color of the LED 333 according to the determination result . It is preferable that the LED 333 uses a three-color high-brightness LED, and the color change for the LED may be selectively controlled in various colors depending on the situation.

Then, when the color of the LED 333 is selected, for example, the yellow color, the LED 333 is kept lit in the yellow color regardless of the presence or absence of the vehicle. However, when the fog or the humidity is returned to the normal range, the color of the LED 333 is automatically changed to the initial state, for example, a white color.

Therefore, the present invention does not include a sensor for measuring the fog or humidity and enables color control of the gaze guidance lamp without having a speed sensor for detecting the speed of the vehicle.

On the other hand, the optical sensor 335 provided in the present invention is provided so as to face each other on the outer circumferential surface of the upper frame 201, which is based on vehicle operation in both directions. However, when the vehicle traveling in both directions is in the same or close position, glare may be caused by the headlight of the other vehicle, and the position of the center line of the road may be momentarily difficult to grasp. Accordingly, in the present invention, when a light source of a predetermined amount or more is simultaneously received from two mutually opposing optical sensors 335, that is, when two-way vehicles cross each other, the control unit 401 keeps the color of the current LED 333 Blinking can be controlled.

The blinking control of the LED 333 causes blinking of the sight guide lamp 200 to imprint the position of the center line in a state in which it is difficult to secure a view due to the glare. In particular, it is possible to reduce the risk of accidents caused by the headlights of the opposite vehicle at nighttime driving on curved roads.

In this case, the light guide 333 may be illuminated by using the output of the solar cell 331 without using the above-described optical sensor 335. In this case, And color control will be possible. In other words, the deliner of the present embodiment further includes a humidity sensor, so that the lighting and lighting control of the gaze-guiding lamp is performed according to the ambient humidity or safety improvement, together with the lighting control based on the brightness of the vehicle headlamp. Further, the housing structure according to the present embodiment is an exemplary variation of the structure of the above-described roadside guidance lamp, and the technical category thereof is not limited thereto.

6, the delineator shown in another embodiment of the present invention includes a housing 601 having a structure that can be installed on the road, a solar cell (not shown) for converting sunlight into electric energy A reflection plate 603 provided on both sides of the housing 601 for reflecting the headlights of the vehicle during the day and guiding the divergence of the light source using the internal LED 333 at night, A humidity detecting hole 609 provided on one side of the housing 601 for measuring the ambient humidity and a coupling groove 607 extending to the lower end of the housing 601 for installing the deliner And a fastening guide 605.

The solar cell 331 is designed to be inclined at approximately 40 ° to 50 ° in order to efficiently receive the solar light source, and the upper portion of the housing 601 is formed in an oblique shape so as to be installed at preferably 45 °.

The electric energy generated from the solar cell 331 is charged by the battery 325, and the charged electric energy is used as electric power for operation of the system and lighting of the LED 333. Therefore, the battery 325 is applied as a rechargeable secondary battery, and is built in the housing 601.

The solar cell 331 generates electric energy corresponding to the amount of sunlight, and uses it to discriminate daytime and nighttime. That is, if a predetermined amount of electricity is generated over a certain period of time, it is determined that the electricity is generated during a certain period of time.

The humidity sensor installed in the housing 601 and communicating with the humidity detecting means 609 measures the ambient humidity of the deliner and measures the ambient temperature of the LED 333 in proportion to the measured humidity, Control is performed. For example, when the amount of humidity is less than the reference value range, the color of the LED 333 is turned white, and when the humidity amount is within the reference value range, the color of the LED 333 is turned yellow. Here, the reference value can be exemplified as a case where the humidity amount is 50% to 70%. Further, when the humidity level exceeds 70%, it is possible to request the surroundings of the driver by blinking the lit yellow color.

FIG. 7 is a functional block diagram illustrating the main operation of the deliner according to the present embodiment. Here, the same elements as those in Fig. 4 will use the same identification number.

As shown in the drawing, the controller for operating and controlling the deliner includes a voltage measuring unit 403 for measuring a voltage detected from the solar cell 331 and converting the measured voltage into a digital signal, and an electric signal corresponding to the ambient humidity And a voltage measuring unit 403 for charging the battery 325 and applying a charging voltage of the battery 325 to the system voltage, The LED 333 is selectively turned off during the daytime and the LED 333 is turned off at night to determine the humidity of the humidity sensor 701 at night A controller 703 for performing lighting and color control of the LED 333 and supplying power to the LED 333 in accordance with an instruction from the controller 703, (407) .

The control unit 703 lights the color of the LED 333 when the humidity detected by the humidity sensor 701 is lower than the reference value and the color of the LED 333 is yellow when the humidity is within the reference value range And controls the yellow blinking when a humidity amount exceeding the reference value is detected. The reference value according to the amount of humidity may be set differently according to the region.

The white light according to the present embodiment can be exemplified by a humidity of 50% to less than 70%, a yellow light of 50% to 70% of humidity, and a humidity of more than 70% Can be illustrated as a control box. However, the setting of the humidity amount may be variable depending on the installation place or environment of the present delegator, and it will be programmed and produced in the manufacturing process.

8 is a flowchart illustrating a deliner operation according to an embodiment of the present invention.

As shown in the figure, the controller 703 checks the system initial state in step S801. The control unit 703 supplies the power supplied from the solar cell 331 to the battery 325 in step S803. In step S805, the controller 703 determines whether it is daytime or nighttime.

For this, the controller 703 determines the day or night based on the voltage state output from the solar cell 331. That is, when the output voltage of the solar cell 331 is equal to or higher than the set value, it is determined as a daytime, and the daytime or nighttime is determined according to the amount of sunlight. Therefore, this can be determined by the experimental value, and there may be a slight difference by region and country.

If it is determined that the controller 703 is at night, that is, if the voltage output from the solar cell 331 is equal to or lower than the set value, the control unit 703 proceeds to step S907 and controls the LED 333 Lights up. Here, the LED 333 is turned on in white. Depending on the design of the circuit, the LED 333 may use a three-color LED or separately configure a white LED and a yellow LED.

If the LED 333 is a three-color LED, the controller 703 provides a control signal for turning on the white light to the driver 407. The driver 407 turns on the white LED under the direction of the controller 703, Lt; / RTI > The lighting of the LED 333 can be controlled to the luminance value set by the PWM signal, and the lighting can be controlled by the on-off signal if necessary.

The control unit 703 turns on the white LED and enters the step S809 to receive the current humidity value from the humidity sensor 701. [ The humidity sensor 701 is provided with a modular structure for measuring the amount of humidity and outputting it as a digital signal, and the controller 703 measures the current humidity amount from the humidity sensor 701.

The control unit 703 holds reference value information on the amount of humidity, and in this embodiment, the reference value of the amount of humidity is 50% to 70%. Of course, the reference value for the amount of humidity can be set differently depending on the design and road environment.

The control unit 703 controls the driver 407 to turn on the LED 333 while the control unit 703 controls the lighting of the LED 333 in the step S811, LED is instructed to be turned on. On the other hand, if it is determined in step S809 that the current humidity value is less than the reference value range, that is, if the current humidity amount is insufficient, the controller 703 feeds back to step S807 to maintain the ON state of the white LED.

The reason why the LED 333 is provided in a yellow color is to warn that the humidity on the road is included in the reference value range and there is a risk of vehicle operation. Therefore, the driver recognizes the ON state of the yellow LED, thereby assuring safe driving. In step S813, the controller 703 determines whether the current humidity value exceeds the reference value range.

If the current humidity level is included in the reference value as a result of the determination in step S813, the controller 703 determines in step S811 that the humidity level is greater than 50% To maintain the ON state of the yellow LED. On the other hand, if the predetermined reference value is exceeded, the controller 703 proceeds to step S815 and instructs the yellow LED to keep flashing.

In this way, the yellow LED flashes to warn that there is a danger that the humidity on the road is very high, so that the driver recognizes the flashing operation of the yellow LED, thereby achieving safe operation.

9 is a photograph showing the operating state of the deliner according to the present embodiment.

(A) shows a daytime operation, and performs a deliner function by a reflection plate 603. [ However, when the amount of humidity is less than the reference value described above, the color of the LED 333 becomes white as shown in (B), while the color of the LED 333 changes according to the amount of humidity. . When the humidity is within the reference value range, as shown in (C), the yellow LED is turned on to visually recognize that the humidity on the road exists. Further, when the current humidity level exceeds the reference value, the yellow LED (C) blinks to induce the driver to drive safely.

200: eye guide lamp 201: upper frame
203: sensor hole 205: lens
221: Lower frame 223: Embedding projection
301: opening 303: safety jaw
305: communication hole 311: support frame
313: rubber ring 315: fastening part
317: Installation Hole 321: Operation Panel
323: Fee 325: Battery
331: Solar cell 333: LED
335: optical sensor 400: control device
401, and 703: a control unit 403:
405: memory 407: driver
701: Humidity sensor

Claims (5)

The system power source is constructed by measuring the ambient illuminance using the solar cell 331 and charging the solar light as a structure to be embedded in the road after being fastened at the lower part of the upper frame 201, A control device 400 for calculating the amount of mist or humidity based on a change in the amount of light of the light sensor 335 mounted on the hole 203 and changing the color of the LED 333 according to the result, The upper frame 201 has a through hole having an opening 301 at an upper portion thereof and has a safety protrusion 303 protruding from the rim of the opening 301, A lens 205 installed to face the outer surface of the upper frame 201 and to enter the lower portion of the upper frame 201 to condense ambient light; The wiring of the optical sensor 335, That includes a support frame 311 having a communication hole (305); The lower frame 221 is formed with a fastening portion 315 for screwing in the lower portion of the upper frame 201 and has a plurality of embedding projections 223 on the outer circumferential surface thereof,
And a humidity sensor (701) for outputting an electrical signal corresponding to the ambient humidity amount;
The controller 400 operates to charge the battery 325 with the power generated by the voltage measuring unit 403 and to apply the charging voltage of the battery 325 as the system voltage. The LED 333 is turned off during the daytime and the LED 333 is turned off during the daytime so that the LED 333 can be turned on at night in accordance with the humidity of the humidity sensor 701. [ (333), and performs color control. The method according to claim 1,
The controller 400 lights the color of the LED 333 when the amount of humidity is less than the reference value range and turns the color of the LED 333 to yellow when the humidity amount is within the reference value range, The color of the LED 333 flashes in a yellow color. 3. The method of claim 2,
Wherein the reference value of the amount of humidity is 50% to 70%. 3. The method of claim 2,
The LED 333 is a three-color LED, and the luminance is controlled in accordance with the PWM method. 5. The method according to any one of claims 2 to 4,
Wherein the gaze direction indicator is a deliner.

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