KR101769978B1 - Auto Lighting Control Circuit For LED Streetlight - Google Patents

Abstract

The present invention relates to a device for automatically controlling a light emitting diode (LED) street lamp, which comprises: a street lamp post (10) formed by installing an LED street lamp (1); a solar cell sensor (100) for converting sunlight into electric energy; a charging battery (200) for storing the electric energy generated from the solar cell sensor (100); a power supply unit (300) for supplying AC 220V provided by Korea Electric Power Corporation; an AC/DC power conversion unit (400); a DC power conversion unit (500); a fog reading unit (600) installed in the street lamp post for reading external fog; a street lamp height adjusting unit (11) installed at the street lamp post (10) to adjust the height of the street lamp post; a width adjusting unit (12) installed at the street lamp post (10) to adjust the width of the street lamp; and a control unit (700) for controlling light of the street lamp to be outputted on a central plane of the road. Accordingly, the device of the present invention can be charged with necessary power by photovoltaic power generation in the daytime, and can use the charged power at night.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

[0001] The present invention relates to an LED (Light Emitting Diode) automatic control apparatus, and more particularly, to a street light automatic control apparatus for an LED Second, the fog situation is read. If the fog situation is higher than the reference level, the headlight of the LED streetlight is lowered and the lighting lamp is advanced. At the same time, the lighting lamp is controlled to blink so that the vehicle or the customer can safely operate And to an automatic LED street light control device.

As is well known, a luminescent diode is called a light emitting diode (LED), and the phenomenon of light emission that occurs when a voltage is applied to a semiconductor is referred to as electroluminescence.

As a material suitable for LED, it is required to have a light emitting wavelength in a visible or near infrared region, a light emitting efficiency should be high, a pn junction can be made, and the LED is smaller than a conventional light source, Is long, and the electric energy is converted directly into light energy, so the power is low and efficiency is high.

In addition, because of high-speed response, it is also used for a display lamp of a vehicle instrument, a display lamp of various electronic devices such as a light source for optical communication, a card reader of a numeric display device and a calculator.

The LED can be controlled by automatically adjusting the brightness according to the surrounding brightness when compared with a general incandescent lamp, a mercury lamp, a neon lamp, and a fluorescent lamp which are turned on using an AC / DC power source, , It is suitable for summer lighting due to low heat generation, economic efficiency and eco-friendliness that can reduce replacement cost due to multi-color implementation and long life span, etc., .

However, since the conventional LED street light has no active function, it is possible to simply turn on or off the light, and there is a problem that it is not possible to grasp even a streetlight in an emergency situation such as a fog situation.

Of course, a composite lighting streetlight with a fog lighting lamp is also disclosed in the prior art, and according to the registered patent No. 10-0932917, a combined lighting streetlight to which a fog lighting lamp according to the related art is attached includes a lamppole; A street light head installed on the street lamp pillar; A general illumination lamp unit installed on the streetlight head; A fog lamp unit installed in the streetlight head; A streetlight arm connecting the streetlight head and the streetlight column; A street lamp head connecting portion for connecting the street lamp head to the street lamp arm; An illuminance sensor for sensing brightness of illumination; A fog sensor for sensing the level of the fog; And an illumination lamp control unit for controlling the general illumination unit and the fog illumination unit according to the sensor values detected by the illumination sensor and the fog sensor.

The conventional 'combined lighting street light with a fog light lamp' according to the related art has a fog lighting lamp attached to a common street light, so that it is not necessary to install a fog lighting lamp separately. Thus, it is possible to install a general street light, It has the automatic fog automatic sensor function and it is convenient to automatically turn on the fog lights if there is more than a certain level of fog.

However, since the street light of such a street light is located at a relatively high point, there is a problem that it is not visible when the fog is deep and there is a possibility that the street light is present in the vehicle.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a solar power generation system and a solar power generation system in which solar power is generated during the day to charge a necessary power source, And it is an object of the present invention to provide a device for driving a vehicle driver to drive safely by guiding simultaneous blinking by extending a streetlight to a road direction by arranging a streetlight as low as possible.

In order to achieve the above-mentioned object, the present invention provides a lighting system comprising: a street lamp post 10 provided with an LED street lamp 1; A solar cell sensor 100 installed in the streetlight column for converting sunlight into electric energy; A charging battery 200 for storing the electric energy generated from the solar cell sensor 100, an AC (alternating current) 220V power supply unit 300 provided from the KEPCO, An AC / DC power converter 400 for converting an AC 220V applied from the AC 220V power supply unit 300 to a predetermined DC voltage by a power supply unit for lighting operation of the LED streetlight 1; A DC power switching unit 500 for switching the DC power supplied from the charging battery 200 or AC / DC power converting unit 400 to apply to the main control unit; A fog reading unit 600 installed in the streetlight support for reading an external mist; A streetlight height adjusting unit 11 installed on the streetlight support 10 for adjusting the height of the streetlight support; A width adjuster 12 installed at the street lamp post 10 for adjusting the width of the street lamp; And a control unit 700 controlling the streetlight height adjusting unit and the streetlight width adjusting unit to control the street lamp light to be outputted to the center of the road if the reference result is higher than the reference result of the reading of the mist reading unit.

The fog reading unit 600 includes a camera 610 installed at one end of an illumination lamp; An image receiving unit 620 receiving an image photographed by the camera 610 and storing the received image; An image extracting unit 630 for converting a video image stored in the image receiving unit 620 into a monochrome image; And a coordinate system calculating unit 640 that reads the position of black or white in the black-and-white image created by the image extracting unit 630.

In addition, a GPS satellite 900 for transmitting accurate time data; Further comprising: a GPS terminal (800) receiving clock cycle data from the GPS satellite; The controller 700 receives clock information from the GPS terminal and controls the flicker period of the LED streetlight to match.

Determining a fog situation using a fog reading means; Lowering the height of the streetlight by controlling the height of the streetlight height adjusting unit in the control unit; And controlling the streetlight holding width adjusting unit to transfer the LED street lamp to the center of the road.

Receiving time data from GPS satellites in a fog situation; And blinking the LED street lamp in synchronization with the GPS time data.

As described above, according to the present invention, first, the solar power is generated during the day to charge the required power source, and the charging power source is used at night. Second, in the fog situation, the light is read and the streetlight is arranged as low as possible. And also induce simultaneous blinking to induce the driver of the vehicle to drive safely.

1 is an overall block diagram of an LED street light automatic brightness control apparatus according to the present invention.
2 is a sectional view of an LED streetlight embodiment of the present invention.
3 is an exploded perspective view of the LED street lamp according to the present invention.
Figure 4 is a perspective view of the LED streetlight incorporating the present invention.
5 is a first operation diagram of the LED street lamp according to the present invention.
6 is a second operation diagram of the LED street lamp according to the present invention.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

1 is an overall block diagram of an LED street light automatic brightness control apparatus according to the present invention.

2 is a sectional view of an LED streetlight embodiment of the present invention.

3 is an exploded perspective view of the LED street lamp according to the present invention.

Figure 4 is a perspective view of the LED streetlight incorporating the present invention.

5 is a first operation diagram of the LED street lamp according to the present invention.

6 is a second operation diagram of the LED street lamp according to the present invention,

A solar cell sensor 100 for converting solar light into electric energy as shown in the figure, a charging battery 200 for storing electric energy generated from the solar cell sensor 100, an alternating current AC ) 220V power supply unit 300 and a power supply unit for lighting operation of the LED streetlight 1. The AC / DC converter 220 converts the AC voltage 220V applied from the AC 220V power supply unit 300 to a predetermined DC voltage, A DC power switching unit 500 for switching the DC power supplied from the charging battery 200 or the AC / DC power converting unit 400 to supply power to the streetlight, An LED streetlight 1 illuminated by receiving power from the power switching unit, a fog reading unit 600 for detecting fog, and a control unit for controlling the height and extension of the streetlight when the resultant mist of the fog reading unit is above a reference 700).

The streetlight post 10 is provided with a streetlight height adjusting unit 11 for adjusting the height of the streetlight and a width adjusting unit 12 for adjusting the width of the streetlight. The controller 11 and the street lamp width controller 12 are moved up and down or left and right under the control of the controller 700.

The LED street light 1 is installed at the end of the street light width adjusting unit 12 while the street light width adjusting unit 12 is installed in the guide rail 14 ). ≪ / RTI >

The fog reading unit 600 includes a camera 610 installed at one end of an illuminating lamp; An image receiving unit 620 receiving an image photographed by the camera 610 and storing the received image; An image extracting unit 630 for converting a video image stored in the image receiving unit 620 into a monochrome image; And a coordinate system calculating unit 640 for reading the position of black or white in the monochrome image created by the image extracting unit 630.

The camera 610 photographs the bottom surface at a predetermined time interval.

The image receiving unit 620 receives and stores the photographed image from the camera.

The image extracting unit 630 converts a video image stored in the image receiving unit into a monochrome image so that the contrast can be discriminated.

The coordinate system calculating unit 640 reads the monochrome image converted by the image extracting unit to determine how much white is present to grasp the distribution of the current fog.

In addition, the LED street light automatic brightness control device according to the present invention uses solar power in the daytime to charge a necessary power source, uses the charging power source at night, and when an amount of charging electric power is small, an abnormal phenomenon occurs in the charging device, AC power can be used when the power consumption is less than the power consumed due to the small power generation due to the change.

If it is determined that the electric power charged in the charging battery 200 is insufficient for lighting the LED street light 1, the main control unit 700 controls the operation of the DC power source switching unit 500, AC power supply unit 300 to select the AC / DC power conversion unit 400 and control the LED streetlight 1 to operate.

The AC / DC power conversion unit 400 is configured to convert AC 220V applied from the AC 220V power supply unit 300 to DC 12V or DC 24V which is a predetermined DC voltage. do.

The operation of the LED street light automatic brightness control device according to the present invention will be described in detail with reference to FIG.

First, the solar cell sensor 100 converts sunlight into electric energy and supplies the electric energy to the rechargeable battery 200.

The rechargeable battery 200 stores electric energy generated from the solar cell sensor 100. The AC 220V power supply unit 300 supplies the AC 220V provided from the KEPCO to the AC / DC power conversion unit 400.

The AC / DC power conversion unit 400 converts the alternating current (AC) 220V applied from the AC 220V power supply unit 300 into a predetermined DC voltage for lighting operation of the LED streetlight 1.

The DC power switching unit 500 switches the DC power supplied from the rechargeable battery 200 or the AC / DC power converting unit 400 to select (switch) the DC power and applies it to the controller 700.

The control unit 700 controls the operation of the DC power switching unit 500 to turn on the AC 220V power source if the power charged in the rechargeable battery 200 is judged to be insufficient for lighting the LED streetlight 1, DC power conversion unit 400 inputted through the supply unit 300 to operate the LED street lamp 1. The AC /

The AC / DC power conversion unit 400 converts AC 220V applied from the AC 220V power supply unit 300 to DC 12V or DC 24V which is a predetermined DC voltage.

When the fog condition is greater than or equal to the reference value, the fog reading unit 600 determines that the fog situation has occurred. If the fog is greater than or equal to the fog level, the height of the LED streetlight is lowered by activating the height adjustment unit 11 and the width adjustment unit 12, At the same time, the width of the LED streetlight is increased to move the LED streetlight to the center of the road.

As a result, the driver is able to operate with more care in the fog situation because the street light is lit at the center of the road.

In addition, the present invention further adds a GPS terminal 800 and receives clock data through the GPS satellite 900.

For reference, the GPS satellite 900, as is known, transmits a GPS satellite that transmits a signal for a time at which a coordinate signal for the current position is transmitted, revolving the earth two times a day at 20,183 km, And a total of 18 GPS satellites (including 24 satellite satellites for each of the orbits) are arranged at equal intervals, and then a GPS receiver is used to receive and process signals transmitted from the GPS satellites, It is a device that can detect the position where a terminal exists and can detect the position of the self by detecting a signal transmitted from three or more GPS satellites by using a GPS receiving terminal comprising a GPS antenna and a GPS receiving circuit. However, in the case of three-dimensional position measurement, four or more GPS satellite signals are required.)

Accordingly, it is possible to receive the clock data from the GPS satellite 900 and to control the blinking period of the LED street lamp. For example, 60 times per minute or 90 times per minute is designated, and each streetlight is flickered in the same blinking period So that the user can feel stable flicker.

That is, the driver can operate while feeling the same flicker, and can operate while recognizing that there is an emergency due to a lot of mist.

The control procedure of the present invention is as follows.

Receiving time data from GPS satellites; Inputting data from a fog sensor; Reading data from the fog sensor and determining that the fog is high if the humidity is very high; If the reference value is exceeded in the step, the lamp is flickered in synchronization with the GPS time data.

As a result, since the power supply is supplied from the solar panel, no separate power supply device is required. In order to synchronize the synchronization signal with the GPS terminal 800, So that the driver can drive more carefully.

100: solar cell sensor 200: rechargeable battery
300: AC (220V) AC power supply unit 400: AC / DC power conversion unit
500: DC power switching section

Claims (5)

A street lamp post 10 formed by installing an LED street lamp 1; A solar cell sensor 100 installed in the streetlight column for converting sunlight into electric energy; A charging battery 200 for storing the electric energy generated from the solar cell sensor 100, an AC (alternating current) 220V power supply unit 300 provided from the KEPCO, An AC / DC power converter 400 for converting an AC 220V applied from the AC 220V power supply unit 300 to a predetermined DC voltage by a power supply unit for lighting operation of the LED streetlight 1; A DC power switching unit 500 for switching the DC power supplied from the charging battery 200 or AC / DC power converting unit 400 to apply to the main control unit; A fog reading unit 600 installed in the streetlight support for reading an external mist; A streetlight height adjusting unit 11 installed on the streetlight support 10 for adjusting the height of the streetlight support; A width adjuster 12 installed at the street lamp post 10 for adjusting the width of the street lamp; And a control unit (700) for controlling the street lamp height adjusting unit and the street lamp width adjusting unit to control the street lamp light to be outputted to the center plane of the road if the fog reading unit is above the reference result of the reading result;
The fog reading unit 600 includes a camera 610 installed at one end of an illumination lamp; An image receiving unit 620 receiving an image photographed by the camera 610 and storing the received image; An image extracting unit 630 for converting a video image stored in the image receiving unit 620 into a monochrome image; And a coordinate system calculating unit 640 for reading the position of black or white in the black-and-white image created by the image extracting unit 630;
A GPS satellite 900 for transmitting accurate time data; Further comprising: a GPS terminal (800) receiving clock cycle data from the GPS satellite; Wherein the controller (700) receives the clock information from the GPS terminal and controls the flashing period of the LED streetlight to match. delete delete delete delete

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