KR101587963B1 - Safety guidance lamp for road - Google Patents

Safety guidance lamp for road Download PDF

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Publication number
KR101587963B1
KR101587963B1 KR1020150097547A KR20150097547A KR101587963B1 KR 101587963 B1 KR101587963 B1 KR 101587963B1 KR 1020150097547 A KR1020150097547 A KR 1020150097547A KR 20150097547 A KR20150097547 A KR 20150097547A KR 101587963 B1 KR101587963 B1 KR 101587963B1
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KR
South Korea
Prior art keywords
light
fog
vehicle
amount
color
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KR1020150097547A
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Korean (ko)
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김훤
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김훤
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    • H05B37/0227—
    • E01F9/065—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

Abstract

Disclosed is a road safety guidance lamp, which can significantly reduce costs for manufacturing a safety guidance lamp, and can automatically change a color of the safety guidance lamp according to an ambient environment. According to the present invention, the safety guidance lamp, which changes the color according to a driving velocity of a vehicle and a surrounding fog state, comprises: a metallic upper frame which has a structure protruding from a road, and includes a lens for concentrating an ambient light source and a sensor hole for receiving a light amount of a headlight of the vehicle; and a lower frame fastened to a lower portion of the upper frame, buried in the road, and having an embedded controller which performs the measurement of ambient illuminance and a photovoltaic charge by using a solar cell so as to construct power of a system, calculates the amount of fog or humidity based on the variation in a light amount of a light sensor mounted on the sensor hole, and then changes a color of an LED in accordance with a result thereof. Accordingly, the road safety guidance lamp of the present invention changes the color of the safety guidance lamp according to the state of fog on the road, the state of change in ambient illuminance, and the vehicle driving state without a separately equipped fog sensor, ambient illuminance sensor, and detection sensor of the vehicle velocity, thereby significantly reducing costs for manufacturing the system.

Description

SAFETY GUIDANCE LAMP FOR ROAD [0001]

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, The present invention relates to a sight line guide lamp for a road, which can change the color and induce 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.

According to an aspect of the present invention, there is provided a gaze guidance light whose color changes according to a traveling speed of a vehicle and a surrounding fog state, the gaze guidance light having a structure protruding on the road, An upper frame made of a metal and provided with a sensor hole for receiving a light quantity of a lens and a vehicle headlamp; And the solar cell is filled with solar light to construct a system power source, and the light amount change of the optical sensor mounted on the sensor hole is based on And a control unit for controlling the color of the LED according to a result of the calculation of the amount of mist or humidity.

According to a preferred embodiment of the present invention, the upper frame has a through-hole structure having an opening at an upper portion thereof, and has a safety protrusion protruding from a rim of the opening, wherein the sensor hole is provided so as to face on an outer circumferential surface thereof; And a support frame having a communication hole for supporting the lens downward and guiding a wiring of the optical sensor drawn into the sensor hole; The lower frame has a fastening portion for screwing the upper frame and the lower frame, and has a plurality of embedding projections on the outer circumferential surface.

According to a preferred embodiment of the present invention, the control device includes: an operation panel including a solar cell generating power corresponding to a surrounding illumination amount and a plurality of LEDs for guiding a visual line; Determining whether the guide light is turned on or off according to the ambient illuminance at a lower portion of the operation panel, calculating a fog or humidity amount in the vicinity based on a change in the amount of light received from the photosensor, To change the lighting color of the light source; And a battery that is located at a lower portion of the PCB and charges the electric energy generated from the solar cell and supplies the charged energy to the PCB, and is installed in the lower frame.

According to a preferred embodiment of the present invention, there is provided a control device comprising: a voltage measuring unit for measuring a voltage detected from the solar cell and converting the measured voltage into a digital signal; A memory for storing, as table map information, a change in the degree of roughness of the vehicle headlight received by the photosensor in accordance with the current state of the fog or humidity within an average speed range of the vehicle; Wherein the control unit is configured to charge the power generated by the voltage measuring unit with the battery and to apply the charging voltage of the battery as a system voltage and to selectively control the lighting of the LED based on the detection voltage of the voltage measuring unit, A control unit for comparing the light source of the current vehicle headlight received with the table map information stored in the memory to determine the current fog or humidity condition and instructing the color change to the LED according to the fog or humidity condition; And a driver for supplying the rated power to the LED according to an instruction from the controller and performing switching for color change.

According to another aspect of the present invention, there is provided a control apparatus comprising: a voltage measuring unit for measuring a voltage detected from the solar cell and converting the measured voltage into a digital signal; A memory for storing, as reference graph information, a light amount change of a light source irradiated from a driving vehicle having an average speed range of the vehicle in the absence of fog or humidity or under a reference value; The control unit charges the power generated by the voltage measuring unit with the battery and operates the charging voltage of the battery to be applied as a system voltage and selectively controls the lighting of the LED based on the detection voltage of the voltage measuring unit, Calculating a difference value between a reference graph and a current light amount change amount after searching for a position of a reference graph in which a differential value for a light amount change of the light source is in the same or similar range as a differential value in the reference graph information, A controller for instructing the color change to the LED according to a value of the LED; And a driver for supplying the rated power to the LED according to an instruction from the controller and performing switching for color change.

It is possible to provide a roadside guidance lamp according to the present invention that does not include a separate fog detection sensor, an ambient illuminance sensor, and a vehicle speed detection sensor, and can detect a color of a guide light according to a fog occurrence state, It is possible to reduce the manufacturing cost of the system. 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.

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 can turn on the white color when the fog or the humidity is in the normal range, and the yellow color when the fog or the humidity exceeds the reference value. 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.

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: control unit 403: voltage measuring unit
405: memory 407: driver

Claims (7)

1. A gaze guidance light whose color is changed according to a traveling speed of a vehicle and a surrounding fog state,
An upper frame 201 made of metal and having a structure protruding on the road and provided with a lens 205 for condensing the ambient light source and a sensor hole 203 for receiving the light amount of the vehicle headlight; And
The system power is built by performing peripheral illuminance measurement using a solar cell and charging solar light as a structure buried in the road after being fastened at the lower part of the upper frame 201, And a lower frame 221 in which a control device 400 for calculating a fog or a humidity based on the light amount change of the LED 333 and changing the color of the LED 333 according to the result is provided,
The upper frame 201 has a penetrating structure having an opening 301 at an upper portion thereof and has a safety protrusion 303 protruding from the rim of the opening 301. The sensor hole 203 is formed on the outer circumferential surface Installed so as to face each other;
A lens 205 for pulling down the upper frame 201 and condensing an amount of ambient light and a lens 205 for supporting the lens 205 downward and for guiding the light emitted from the light sensor 335 And a support frame (311) having a communication hole (305) for guiding wiring;
Wherein the lower frame (221) is formed with a fastening part (315) so as to be screwed with the upper frame (201) at a lower part thereof, and has a plurality of embedding projections (223) on the outer circumferential surface thereof. delete The method according to claim 1,
The control device 400 includes an operation panel 321 including a solar cell 331 generating electricity corresponding to the amount of surrounding illumination and a plurality of LEDs 333 for guiding the sight line.
The fog or the amount of humidity around the operation panel 321 is calculated based on the change in the amount of light received from the photosensor 335, (323) for controlling the lighting color of the guide lamp to change in accordance with the result;
And a battery 325 located below the PCB 323 for charging the electric energy generated from the solar cell 331 and supplying the charged energy to the PCB 323. The battery 325 is connected to the lower frame 221, A roadside guidance lamp characterized by being put out. The control device (400) according to claim 3,
A voltage measuring unit 403 measuring a voltage detected from the solar cell 331 and converting the measured voltage into a digital signal;
A memory (405) for storing, within the average speed range of the vehicle, the change in the degree of roughness of the vehicle headlight received by the optical sensor (335) in accordance with the current state of fog or humidity as table map information;
The control unit 403 charges the power generated by the voltage measuring unit 403 with the battery 325 and applies the charging voltage of the battery 325 to the system voltage. The current light source of the vehicle headlight 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, A control unit 401 for instructing the color change by the LED 333 according to a fog or humidity condition;
And a driver (407) for supplying rated power to the LED (333) according to an instruction from the controller (401) and performing switching for color change. The control device (400) according to claim 3,
A voltage measuring unit 403 measuring a voltage detected from the solar cell 331 and converting the measured voltage into a digital signal;
A memory (405) for storing, as reference graph information, a light amount change of a light source irradiated from a driving vehicle having an average speed range of the vehicle in the absence of fog, humidity, or under a reference value;
The control unit 403 charges the power generated by the voltage measuring unit 403 with the battery 325 and applies the charging voltage of the battery 325 to the system voltage. The position of the reference graph in which the differential value with respect to the light quantity change of the headlamp light source at the present time point is the same as or similar to the differential value in the reference graph information is searched for, A control unit 401 for calculating a difference value between the reference graph and the current light amount change amount and instructing the color change by the LED 333 according to the difference value;
And a driver (407) for supplying rated power to the LED (333) according to an instruction from the controller (401) and performing switching for color change. delete delete
KR1020150097547A 2015-07-09 2015-07-09 Safety guidance lamp for road KR101587963B1 (en)

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KR20190041573A (en) * 2017-10-13 2019-04-23 한국건설기술연구원 Control system, and method thereof for led lighting
KR20190097965A (en) * 2018-02-13 2019-08-21 창원문성대학교산학협력단 Power control system for streetlight and the method thereof
CN110242917A (en) * 2019-04-10 2019-09-17 高邮市诚顺照明电器有限公司 A kind of solar street light centralized control system
CN110873313A (en) * 2018-08-30 2020-03-10 中山市叶一照明有限公司 Waterproof LED wall washer
CN111701388A (en) * 2019-03-18 2020-09-25 江苏泛亚微透科技股份有限公司 Controller for adjusting dew point by weak magnetic force valve and application thereof
CN111701389A (en) * 2019-03-18 2020-09-25 江苏泛亚微透科技股份有限公司 Controller for adjusting dew point by using lever balance valve and application thereof
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Publication number Priority date Publication date Assignee Title
KR101692325B1 (en) * 2016-01-21 2017-01-03 김훤 Safety guidance lamp for road having function chainging color
KR20190041573A (en) * 2017-10-13 2019-04-23 한국건설기술연구원 Control system, and method thereof for led lighting
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CN110873313A (en) * 2018-08-30 2020-03-10 中山市叶一照明有限公司 Waterproof LED wall washer
CN111701388A (en) * 2019-03-18 2020-09-25 江苏泛亚微透科技股份有限公司 Controller for adjusting dew point by weak magnetic force valve and application thereof
CN111701389A (en) * 2019-03-18 2020-09-25 江苏泛亚微透科技股份有限公司 Controller for adjusting dew point by using lever balance valve and application thereof
CN110242917A (en) * 2019-04-10 2019-09-17 高邮市诚顺照明电器有限公司 A kind of solar street light centralized control system

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