KR102532109B1 - Road lighting control apparatus and system comprising the apparatus - Google Patents

Abstract

The present invention relates to a road lighting control system. A road lighting control system according to the present invention includes a lighting control device for controlling at least one of lighting and brightness of individual fog lights and individual streetlights according to a control signal received from the outside through a communication channel; an infrared transmission device for detecting fog that transmits infrared rays to the outside and changes the intensity of the infrared rays transmitted to the outside according to an infrared emission control signal received from the outside through a communication channel; An infrared receiver for detecting fog for receiving infrared rays transmitted by the infrared transmitter for detecting fog, generating an infrared transmission control signal based on the strength of the received infrared rays, and transmitting the signal to the infrared transmitter for detecting fog through a communication channel. It is characterized in that it includes.

Description

Road lighting control device and system including the same {ROAD LIGHTING CONTROL APPARATUS AND SYSTEM COMPRISING THE APPARATUS}

The present invention relates to an apparatus and system for controlling a plurality of lights installed along a road, and more particularly, to an apparatus and system for controlling street lights and fog lights (aka fog lights) installed on a road.

In general, a plurality of fog lights (gaze guidance lights) may be installed on both sides of a road on which a vehicle passes for the purpose of preventing accidents in a situation where it is difficult for a driver to secure a view due to thick fog.

Since these fog lights are mainly configured to secure power for operation using solar energy, they have the effect of securing continuous power in normal times, but cannot be charged in situations where bad weather continues for a long time, so the battery eventually runs out. A problem may occur in which the battery is discharged and cannot perform its function.

In addition, due to the nature of the battery, there is a problem of performance deterioration as charging and discharging are repeated, and there is a problem that it does not work even in thick fog due to a failure in wireless communication with the visibility system used for detecting fog. can happen

In addition, a problem that is not helpful to the driver due to the brightness of light that is weak compared to the concentration of fog may occur, or a problem that the brightness of light that is strong compared to the concentration of fog rather interferes with the driver's vision may occur.

Therefore, in order to solve these problems, inventions such as Korean Patent Registration No. 10-0243074 “Apparatus and Method for Adjusting Fog Warning Light” and Korean Patent Registration No. 10-1807227 “Self-illuminated Fog Lamp Device and Control Method” have been made. proposed and published.

That is, the Korean Patent Registration No. 10-0243074, "Apparatus and method for adjusting the brightness of fog warning lights," is configured to detect the concentration of fog occurring on the road and adjust the brightness of the fog lights based on the detected concentration. An invention related to a device and method that can help a driver's safe driving in a situation where an error occurs has been proposed.

In addition, the Korean Patent Registration No. 10-1807227, "Self-illuminated fog light device and control method" is configured to secure continuous power with wind power generation and solar power generation using the driving wind of the vehicle, and the lighting according to the weather An invention related to a device and a control method configured to secure a driver's visibility of a road boundary through a method such as color change has been proposed.

However, the prior inventions as described above do not propose a solution to the failure situation of wireless communication, and are configured to use even wind power generation for the purpose of securing stable power, so that some of the above problems cannot be solved or effective. It is confirmed that the limit occurs only in a limited way.

In addition, conventionally, streetlights were controlled to be turned off during the day and turned on at night in terms of energy saving, but such control was not performed individually for each streetlight, but several were bundled and controlled by the main circuit breaker.

This is because unnecessary standby power is generated when a control device for automatically shutting off each street light is installed.

That is, in order to minimize unnecessary waste of standby power, the main circuit breaker controls power supply or cut-off collectively for at least tens of streetlights.

However, as described above, fog lights need to be individually controlled on a local area basis, unlike streetlights that can be collectively controlled based on time.

That is, since fog can occur in a short period of time and in a small range, individual control of each fog lamp is essential.

Despite these circumstances, conventionally, a system for controlling fog lights and a system for controlling streetlights are separately operated.

Therefore, by solving all the above problems, it is possible to stably secure power even in a situation where the weather is bad, maintain a stable communication connection, and implement lighting of appropriate brightness according to the concentration of fog. In addition to making it possible, there is a need for an invention for integrated control processing for fog lights and street lights.

Registered Patent No. 10-0243074 Registered Patent No. 10-1807227

The present invention has been made to solve the above conventional problems, and the purpose thereof is to ensure stable power even in bad weather conditions, to maintain a stable communication connection, and to provide a stable fog concentration. It is to provide a road lighting control system for controlling fog lamps configured to implement lighting of appropriate brightness according to the present invention.

Another object of the present invention is to provide an integrated road lighting control system that basically utilizes a system for controlling fog lights also for controlling street lights.

Road lighting control apparatus according to the present invention in order to achieve the above object, and a communication unit for communicating with the outside through a communication channel; a main power source supplying main power; an auxiliary power supply unit supplying auxiliary power; A power control unit for controlling at least one of lighting and lighting brightness of individual fog lights and individual streetlights according to a control signal received through the communication unit, wherein the main power supply unit is disabled and the auxiliary power supply unit is activated. In a state, The power control unit activates the main power supply unit according to a control signal received through the communication unit so that power is supplied by the main power supply unit, and the auxiliary power supply unit supplies power to at least the communication unit and at least a portion of the power control unit. And, the main power supply unit may be configured to supply power to the entirety or to a portion that the auxiliary power unit cannot supply.

Here, the communication unit may perform communication with the outside by performing power line communication.

In order to achieve the above object, the road lighting control system according to the present invention controls at least one of lighting and brightness of individual fog lights and individual streetlights according to a control signal received from the outside through a communication channel. device; an infrared transmission device for detecting fog that transmits infrared rays to the outside and changes the intensity of the infrared rays transmitted to the outside according to an infrared emission control signal received from the outside through a communication channel; An infrared receiver for detecting fog for receiving infrared rays transmitted by the infrared transmitter for detecting fog, generating an infrared transmission control signal based on the strength of the received infrared rays, and transmitting the signal to the infrared transmitter for detecting fog through a communication channel. can include

Here, the lighting control device, the infrared transmitting device for detecting fog, and the infrared receiving device for detecting fog may communicate with each other through a communication channel of a power line communication method.

Here, at least one of the lighting control device, the infrared transmitting device for detecting fog, and the infrared receiving device for detecting fog includes an auxiliary power source for mutual communication processing and a main power source for performing main functions other than communication, and , The lighting control device, the infrared transmitter for detecting fog, and the infrared receiver for detecting fog maintain a communication standby state through an auxiliary power source, and when the main function is required to be performed by information or signals received through a communication channel, the main power can be supplied.

Here, the infrared transmitting device for detecting fog has a blower for blowing upward for the purpose of removing dust and a L-shaped air blower provided in an inner hollow, and one or more air outlets for sending out the wind transported through the air blower in a horizontal direction a housing formed at an upper edge of the front surface and equipped with a shield for blocking sunlight incident on the front surface for the purpose of preventing infrared rays from being scattered by sunlight; a light emitting module unit configured in a plate shape in which a plurality of LEDs emitting infrared rays are disposed and installed on a front surface of the housing; an LED control unit for controlling the output of the plurality of LEDs disposed in the light emitting module unit based on the infrared transmission control signal transmitted by the infrared receiver for detecting fog; a generator configured to generate a control signal according to an intensity of an infrared output equal to or higher than a reference value corresponding to the sustain signal when the infrared transmission control signal is a sustain signal; It may be configured to include a communication unit for receiving an infrared transmission control signal transmitted by the infrared receiver for detecting fog and transmitting a control signal generated by the generation unit to the lighting control device.

Here, the infrared receiving device for detecting fog may include: a photographing module unit for photographing a plurality of infrared rays emitted by the infrared transmitting device for detecting fog in a horizontal direction; an analyzer that analyzes the intensity of the captured infrared rays; In a situation where the intensity that does not reach the reference value is measured, a change signal is generated for controlling the output of the infrared transmission device for detecting fog, and in a situation where the intensity that satisfies the reference value is measured, for maintaining the output of the infrared transmission device for detecting fog a counterpart for generating a sustain signal; It may be configured to include a communication unit for transmitting an infrared transmission control signal corresponding to the maintenance or change signal generated by the corresponding unit to the infrared transmission device for detecting fog.

As described above, according to the present invention, it is possible to individually control not only the fog lights but also the street lights, so that optimum brightness control on the road is possible through precise control.

In addition, since communication between system configuration devices for controlling fog lamps is performed through power line communication, problems due to battery consumption do not occur and stable communication is possible.

Furthermore, by providing a ventilation structure in the infrared transmitter for detecting fog, it is possible to solve the problem (the problem of soot or other dust sticking to the vicinity of the screen) caused by installing a screen installed to block sunlight.

1 is an overall schematic configuration diagram of a road lighting control system according to an embodiment of the present invention;
2 is a view showing an example in which street lights and fog lights are installed in pairs on a road;
Figure 3 is a functional block diagram of the lighting control device of Figure 1,
4 is a functional block diagram of the infrared emitting device for detecting fog in FIG. 1;
5 is a view showing a state in which the infrared transmitting device for detecting fog and the infrared receiving device for detecting fog of FIG. 1 are facing each other;
6 is a side cross-sectional view of the infrared emitting device for detecting fog in FIG. 5 and a front view centering on the position of an led;
7 is a functional block diagram of the infrared receiver for detecting fog in FIG. 1;
8 to 10 are diagrams each illustrating an example of an electronic control block of the lighting control device of FIG. 1 , an infrared emitting device for detecting fog, and an infrared receiving device for detecting fog.

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

Hereinafter, each embodiment according to the present invention is only one example to aid understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention may be configured as a combination of at least one or more of individual components and individual functions included in each embodiment.

The overall schematic configuration of the road lighting control system 1 according to an embodiment of the present invention is as shown in FIG.

As shown in the figure, the road lighting control system 1 includes a lighting control device 100, an infrared transmitter 200 for detecting fog, and an infrared receiver 300 for detecting fog.

First of all, in describing this embodiment, it is assumed that street lights 2 and fog lights 3 are installed on the road at predetermined intervals.

In particular, the central light intensity and the outer intensity of the fog light 3 may be individually controlled to improve visibility and minimize visual fatigue.

For example, FIG. 2 discloses a view of road conditions viewed from above, and it can be seen that street lights 2 and fog lights 3 are installed at predetermined intervals on both sides of the roadside.

Although FIG. 2 illustrates an example in which the street lights 2 and the fog lights 3 are paired one by one and installed at equal intervals, this can be changed in various ways.

For example, if the distance between the street lights (2) is greater than the distance between the fog lights (3), one street light (2) and a plurality of fog lights (3) may be paired, or the street lights (2) may be installed. When the interval is smaller than the interval at which the fog lamps 3 are installed, one fog lamp 3 and a plurality of street lamps 2 may be paired.

The lighting control device 100 performs a function of controlling at least one of lighting status and lighting brightness of individual fog lights 3 and individual streetlights 2 according to a control signal received from the outside through a communication channel.

Compared to conventional devices for controlling the brightness or lighting of fog lights 3, the lighting control device 100 of the present invention can control the lighting, brightness, etc. of not only the fog lights 3 but also the street lights 2 will be.

That is, the lighting control device 100 can turn on or off the street lamp 2 and the fog lamp 3 according to a control signal received from the outside, and further controls the brightness of the street lamp 2 and the fog lamp 3, respectively. can do.

Here, the communication channel through which the lighting control device 100 communicates with the outside may be formed through power line communication.

That is, in this embodiment, the lighting control device 100 may transmit and receive mutually necessary information or signals by performing power line communication with the infrared transmission device 200 for detecting fog or the infrared transmission device 200 for detecting fog.

In particular, in the lighting control device 100, the infrared transmission device 200 for detecting fog performs communication through a communication channel, and the street lamp 2 and the fog lamp ( 3) can be controlled.

At this time, a plurality of lighting control devices 100 may be provided, and at this time, each lighting control device 100 may control the paired street lights 2 and fog lights 3 as described above.

For example, each lighting control device 100 may be matched/configured with respect to the paired street lights 2 and fog lights 3, and the lighting control device 100 is configured from the infrared emitting device 200 for detecting fog. It is possible to perform lighting and brightness control for the matching street lights 2 and fog lights 3 according to the received information.

Here, the lighting and brightness control of the fog light 3 and the street light 2 do not necessarily have to be identical.

For example, the lighting control device 100 determines whether only the fog lamp 3 is turned on and the brightness according to a control signal received from the infrared transmitter 200 for detecting fog while the street lamp 2 is turned off during the day. that can be controlled.

The above-mentioned power line communication (PLC) is to perform communication through a power line (ie, power supply electric line), for example, predetermined data is transmitted as a frequency signal (for example, hundreds of It is a technology for communication by loading high-frequency signals from kHz to several tens of kHz or more).

Since this power line communication technology itself corresponds to a known technology, a detailed description thereof will be omitted.

An example of a specific functional block of the lighting control device 100 is as shown in FIG. 3 .

As shown in the figure, the lighting control device 100 may include a main power supply unit 110, an auxiliary power supply unit 120, a communication unit 140, and a power control unit 130.

First of all, the communication unit 140 performs communication with the outside, and may perform power line communication by being connected to a power line. In particular, the communication unit 140 receives a control signal from the outside, and a more detailed description of the control signal received from the outside will be described later.

The main power supply unit 110 supplies power to each component for performing the main function of the lighting control device 100, and the auxiliary power supply unit 120 supplies power to components for performing and determining a communication function with the outside. .

In particular, the auxiliary power supply unit 120 may supply power to at least a portion of the communication unit 140 and the power control unit 130 .

That is, the auxiliary power supply unit 120 is, for example, even if the lighting control device 100 enters a standby state where the operation is stopped, the minimum configuration necessary to wake it up (wakeup), that is, the communication unit for receiving a control signal from the outside It may be configured to supply power to 140 and a part (for example, at least a part of the power controller 130) that performs a wake-up process based on the received control signal.

At this time, the main power supply unit 110 is configured to supply power to the entire lighting control device 100 or, as described above, may supply power to components other than those supplied by the auxiliary power supply unit 120, and furthermore, street lights. Necessary power can also be supplied to a kind of switching unit (not shown) that controls lighting of (2) and fog lamp (3).

The power control unit 130 performs a function of controlling lighting and brightness of the street lamp 2 and the fog lamp 3 according to an external control signal received through the communication unit 140 .

In particular, the power control unit 130 may activate the main power supply unit 110. For example, in a state in which the main power supply unit 110 is deactivated and only the auxiliary power supply unit 120 is activated, a control signal is provided through the communication unit 140. When is received, the power control unit 130 may activate the main power supply unit 110 to supply power.

At this time, the power control unit 130 may switch the auxiliary power supply unit 120 to an inactive state.

Furthermore, the lighting control device 100 may deactivate the main power supply unit 110 while activating the auxiliary power unit 120 again after a predetermined time has elapsed.

Accordingly, the lighting control device 100 maintains a standby state with minimal power consumption, and performs the necessary operation using the main power when control of the street lamp 2 or the fog lamp 3 is required according to an external control signal. be able to

Meanwhile, the infrared transmission device 200 for detecting fog transmits infrared rays to the outside and changes the intensity of the infrared rays transmitted to the outside according to an infrared emission control signal received from the outside through a communication channel.

In particular, the infrared transmission device 200 for detecting fog generates a control signal that considers the intensity of the infrared transmission control signal received from the outside (ie, the infrared receiver 300 for fog detection) and the infrared signal currently being emitted. It is transmitted to the lighting control device 100.

As described above, the lighting control device 100 can control the lighting of the street lamp 2 or the fog lamp 3 according to the control signal of the infrared transmission device 200 for detecting fog.

An example of a functional block of the infrared emitting device 200 for detecting fog that performs the above function is as shown in FIG. 4 .

As shown in the figure, the infrared emitting device 200 for detecting fog may include a light emitting module unit 210, a light emitting controller 220, a generator 230, and a communication unit 240.

The light emitting module unit 210 includes a plurality of lamps (eg, LED or LiDAR light emitting sensors) that emit infrared rays, and may be configured in a plate shape, for example.

The light emitting module unit 210 performs a function of controlling the output of a plurality of lamps disposed in the light emitting module unit 210 based on an infrared emission control signal transmitted by the infrared receiver 300 for detecting fog.

For example, the light emitting module unit 210 may control whether or not to turn on at least some of the plurality of lamps or control the amount of light.

The generation unit 230 performs a function of generating a control signal according to the intensity of infrared output equal to or higher than a reference value corresponding to the sustain signal when the signal for controlling infrared transmission is a sustain signal.

The communication unit 240 receives an infrared emission control signal transmitted by the infrared receiver 300 for detecting fog and transmits a control signal generated by the generation unit 230 to the lighting control device 100 .

In particular, the communication unit 240 may be configured to perform power line communication. Since the function of power line communication itself corresponds to a known technology, a detailed description thereof will be omitted.

In addition, although not shown in FIG. 4, the infrared emitting device 200 for detecting fog may also have an auxiliary power supply unit and a main power supply unit similarly to the lighting control device 100, and perform their switching/conversion function to minimize power consumption. may be

For reference, FIG. 5 shows an example of a state in which the infrared transmitting device 200 for detecting fog and the infrared receiving device 300 for detecting fog face each other according to one embodiment of the present invention.

As shown in FIG. 5 , the lighting control device 100 and the infrared emitting device 200 for detecting fog may be installed along the roadside in a state facing each other.

For example, the lighting control device 100 and the infrared emitting device 200 for detecting fog may be installed at a predetermined interval on the same side of the road, or may be installed on opposite sides across the road.

As shown in the figure, the infrared transmission device 200 for detecting fog may be installed at a certain height in the section where the fog lamp 3 is installed, and is configured to transmit multiple infrared rays in a horizontal direction, so that the fog light 3 is installed in the section. It can be used to confirm the concentration in situations where

The specific functions and operating conditions of the infrared emitting device 200 for detecting fog will be described below.

The infrared ray transmission device 200 for detecting fog can operate at all times or operate for a certain period of time at each preset period to transmit a plurality of infrared rays. can be adjusted with

At this time, the intensity of the output is not adjusted by operating alone, but the intensity of the output may be adjusted in conjunction with the change in the infrared imaging sensitivity of the infrared receiver 300 for detecting fog according to the generation of fog and the change in concentration.

More specifically, the infrared transmitting device 200 for detecting fog transmits a plurality of infrared rays in a horizontal direction in a state installed at a certain height, and receives a maintenance or change signal transmitted by the infrared receiving device 300 for detecting fog to receive infrared rays configured to maintain or regulate the intensity of the output.

That is, since it is not necessary to adjust the infrared output intensity in normal times when there is no fog, the infrared receiver 300 for detecting fog transmits a maintenance signal, but when fog occurs, the infrared receiver 300 for detecting fog transmits A change signal is received, and an adjustment of the intensity of the infrared output occurs accordingly.

Therefore, in a situation where fog occurs, the change signal is received once or several times according to the concentration of the fog, so that the intensity of the infrared output can be adjusted. Infrared light with the same or similar sensitivity as usual without fog may be captured, and thus a sustain signal is generated and transmitted to the infrared emitting device 200 for detecting fog.

In addition, when the infrared transmitting device 200 for detecting fog increases the intensity of infrared output in response to the change signal transmitted by the infrared receiving device 300 for detecting fog and the sustain signal is received, the A control signal according to the intensity of the infrared output, that is, the intensity of the infrared output equal to or greater than a reference value may be generated and transmitted to the lighting control device 100 .

That is, since the maintenance signal generated by the infrared receiver 300 for detecting fog is a signal generated at an infrared output intensity that is less than a preset reference value in normal times when there is no fog, control by the infrared transmitter 200 for detecting fog In a situation where no signal is generated but fog occurs, the maintenance signal generated by the infrared receiver 300 for detecting fog is a signal generated at an infrared output intensity higher than the reference value, so the control signal by the infrared transmitter 200 for detecting fog Generation of and transmission to the lighting control device 100 is to occur.

Therefore, the lighting control device 100 receives the control signal transmitted by the infrared emitting device 200 for detecting fog, and performs lighting control with an output corresponding to the received control signal to perform fog lamp (3). ) is turned on so that the driver can clearly recognize the boundary of the road even in foggy conditions.

On the other hand, the infrared transmitting device 200 for detecting fog may be provided in a predetermined housing d. The cross-sectional structure of the side of the housing d of the infrared transmitting device 200 for detecting fog is shown in FIG. 6(a). , and the front is as shown in FIG. 6 (b).

As shown in the same figure, the infrared emitting device 200 for detecting fog has a blower (a) for blowing upward for the purpose of removing dust and an L-shaped air blower (b) provided in the hollow inside, such a blower One or more tuyeres (c) for sending out the wind conveyed through (b) in a horizontal direction may be formed on the upper edge of the front surface.

In particular, a shield d for blocking sunlight incident on the front surface may be provided on the housing d of the infrared transmitter 200 for detecting fog for the purpose of preventing infrared rays from being scattered by sunlight.

In addition, as shown in the figure, the infrared emitting device 200 for detecting fog includes a plate shape in which a plurality of LEDs emitting infrared rays are disposed, and a light emitting module unit 210 installed on the front surface of the housing d. ).

In addition, the aforementioned light emitting controller 220, generator 230, and communication unit 240 may be provided in the form of a predetermined module or substrate (not shown) inside the housing (d) shown in FIG. 6. .

That is, as mentioned above, the light emitting controller 220 for controlling the output of the plurality of LEDs disposed in the light emitting module unit 210 based on the maintenance or change signal transmitted by the infrared receiver 300 for detecting fog, The infrared transmitter 200 for detecting fog includes a generator 230 that generates a control signal according to the intensity of infrared output equal to or higher than a reference value corresponding to the received maintenance signal, and the infrared receiver 300 for detecting fog transmits a control signal. The communication unit 240 for receiving the change signal and transmitting the control signal generated by the generation unit 230 to the lighting control device 100 is inside the housing (d) of FIG. 6 or a predetermined post connected to the corresponding housing (d). that can be provided in

In particular, the housing (d) is configured in the form of having a shield (d) on the front surface on which the light emitting module unit 210 is vertically installed, so that a plurality of LEDs are protected from rain, snow, and dust scattered by the driving of the vehicle. and to minimize the scattering of infrared rays by sunlight.

The housing (d) allows the wind generated by the blower inside to be discharged to the outside through the air passage and the tuyere, so that the flow of air inside the shield (d) can be smoothly generated.

In addition, since the inflow of dust scattered by the driving of the vehicle cannot be completely blocked by the shield d, the inflow of dust continues to occur into the shield d.

At this time, since the flow of air by the shield d is stagnant on the front side of the light emitting module unit 210, the concentration of dust introduced into the shield d continues to increase, and thus infrared light for detecting fog In the receiving device 300, an error may occur due to thick fog.

That is, despite the fact that there is almost no fog, infrared reception is not properly performed due to the dust that has flowed into the inside of the shield (d), and as a result, infrared rays are not properly transmitted to the infrared receiver 300 for detecting fog. .

Therefore, the present invention is to ensure that the wind generated by the blower inside the housing (d) is strongly discharged to the outside through the air passage and the tuyere so that the flow of air inside the shield (d) can be smoothly generated, as described above. It is possible to prevent the problem of occurrence of errors due to an increase in the same dust concentration.

On the other hand, the light emitting module unit 210 is configured in the shape of a disc or square plate in which a plurality of LEDs are integrally disposed in a circular shape or a square shape, so that installation, wiring, and replacement in the housing (d) are easy. can do.

In addition, the light emitting control unit 220 allows the plurality of LEDs of the light emitting module unit 210 to emit infrared rays of a preset predetermined intensity in the horizontal direction in response to the sustain signal received at normal times, but fog is generated and fog detection In a situation where a change signal is received from the infrared receiver 300, the intensity of the output may be controlled to be adjusted until a new sustain signal is received.

Accordingly, the plurality of LEDs may be composed of infrared LEDs for emitting infrared rays, but may also be composed of laser LEDs for emitting infrared or laser rays.

At this time, the light emitting control unit 220 may increase the intensity of the output step by step each time a new change signal is received until the sustain signal is received, and from the point when the intensity of the output sufficiently increases and the sustain signal is received, that point The intensity of the output at can be maintained.

Of course, in a situation where the fog is thicker and the change signal transmitted by the infrared receiver 300 for fog detection is received again, the intensity of the output must be controlled to be adjusted until a new maintenance signal is received.

In addition, the intensity of the output may be lowered step by step after a predetermined time has elapsed in a situation in which the maintenance signal is continuously received a predetermined number of times or more, or the maintenance signal is continuously received.

However, when a change signal is received during the adjustment of the output intensity, the intensity of the output may be increased step by step until a sustain signal is received again, and the state may be maintained for a predetermined time.

Therefore, the present invention has an effect of minimizing unnecessary power consumption due to lighting by responding quickly to a situation in which fog is generated and gradually becomes thicker as well as a situation in which fog gradually disappears.

In addition, the generation unit 230 generates a control signal according to the intensity of infrared output equal to or higher than a reference value corresponding to the maintenance signal of the infrared receiver 300 for detecting fog received by the communication unit 240, resulting in the current visibility distance. Allows the illumination of a luminous intensity corresponding to to occur.

That is, the generation unit 230 may determine the visibility distance based on the intensity of the adjusted infrared output and generate a control signal based on the determined visibility distance.

Here, when a humidity sensor, a temperature sensor, etc. are further provided in the infrared transmitter 200 for detecting fog, the generator 230 additionally considers the detection signal of the humidity sensor or the temperature sensor to determine the visibility distance, A control signal based on the determined visibility distance may be generated.

Accordingly, as an embodiment of the present invention, the generation unit 230 generates a control signal that enables the lighting control device 100 to illuminate with a light intensity of 220 cd in a state where the current visibility distance is greater than or equal to 71 m and less than 80 m. And, in a state where the current visibility range is greater than or equal to 61m and less than 70m, the lighting control device 100 may generate a control signal for lighting with a luminous intensity of 350cd.

In addition, the generation unit 230 may generate a control signal that enables the lighting control device 100 to illuminate with a luminous intensity of 540 cd in a state where the current visibility distance is in the range of 51 m or more and less than 60 m, and the current visibility distance In a state in which is in the range of 41 m or more and less than 50 m, the lighting control device 100 may generate a control signal for lighting with a luminous intensity of 840 cd.

In addition, the generation unit 230 may generate a control signal that enables the lighting control device 100 to illuminate with a luminous intensity of 1,310 cd in a state where the current visibility distance is in the range of 31 m or more and less than 40 m, and the current visibility In a state where the distance is in the range of 21 m or more and less than 30 m, the lighting control device 100 may generate a control signal for lighting with a luminous intensity of 2,050 cd.

Also, the generation unit 230 may generate a control signal that allows the lighting control device 100 to illuminate with a light intensity of 3,200 cd when the current visibility distance is 20 m or less.

The communication unit 240 transmits the generated control signal to the lighting control device 100 so that lighting control (ie, control for the street light 2 or fog light 3) can occur according to the value included in the control signal. .

On the other hand, the infrared receiving device 300 for detecting fog receives infrared rays transmitted by the infrared transmitting device 200 for detecting fog, and generates an infrared transmission control signal based on the intensity of the received infrared rays to detect fog through a communication channel. It performs a function of transmitting to the infrared transmitting device 200 for use.

For example, the infrared receiving device 300 for detecting fog includes a photographing device corresponding to a kind of camera, captures infrared rays transmitted by the infrared transmitting device 200 for detecting fog, analyzes the intensity, and analyzes the result. An infrared ray transmission control signal based on is generated and transmitted to the infrared transmission device 200 for detecting fog.

For example, the infrared receiver 300 for detecting fog generates an infrared emission control signal (aka ' Change signal') is generated and transmitted to the infrared emitting device 200 for detecting fog, and when an infrared ray having an intensity that satisfies a preset value is received, an infrared ray emission control signal (a so-called 'maintenance signal') is generated to maintain the infrared ray intensity. It can be generated and transmitted to the infrared transmitter 200 for detecting fog.

In order to perform these functions, the infrared receiver 300 for detecting fog includes a photographing module unit 310, an analysis unit 320, a correspondence unit 330, and a communication unit 340, as shown in FIG. It can be.

Here, the photographing module unit 310 performs a function of photographing a plurality of infrared rays emitted by the infrared transmitter 200 for detecting fog in a horizontal direction.

To this end, the photographing module unit 310 may include an infrared sensor.

The analyzer 320 performs a function of analyzing the intensity of the photographed infrared rays. Since the technology itself of detecting infrared rays and analyzing the intensity corresponds to a known technology, a detailed description thereof will be omitted.

Corresponding unit 330 performs a function of generating an infrared ray transmission control signal according to the analysis result of analysis unit 320 .

Specifically, the corresponding unit 330 generates a change signal for controlling the output of the infrared emitting device 200 for detecting fog in a situation where the analysis result of the analysis unit 320 and the intensity that does not reach the reference value is measured, and satisfies the reference value. In a situation where intensity is measured, a maintenance signal for maintaining the output of the infrared transmitter 200 for detecting fog may be generated.

The communication unit 340 transmits an infrared emitting control signal corresponding to a maintenance or change signal generated by the corresponding unit 330 to the infrared emitting device 200 for detecting fog.

Here, the communication unit 340 may perform power line communication as previously mentioned in other devices, and since power line communication itself corresponds to a known technology, a detailed description thereof will be omitted.

Incidentally, the infrared receiver 300 for detecting fog is a multi-functional device installed at a certain height in the section where the fog lamp 3 is installed, for example, and infrared imaging and intensity analysis and corresponding infrared emitting device for detecting fog It is configured to be able to perform the control of (200) so that it can be used for response according to the concentration in a situation where fog occurs in the corresponding section.

That is, as shown in FIG. 5, the infrared receiver 300 for detecting fog is configured to capture a plurality of infrared rays emitted by the infrared transmitter 200 for detecting fog in a horizontal direction, and the intensity at which the infrared rays are captured It is configured to analyze, and is configured to generate a maintenance or change signal according to the analyzed intensity and transmit it to the infrared transmitter 200 for detecting fog.

Therefore, as described above, in the infrared transmitter 200 for detecting fog, the intensity of infrared output using a plurality of LEDs can be increased step by step, and eventually, in the infrared receiver 300 for detecting fog, there is no occurrence of fog. Infrared light with the same or similar sensitivity as usual can be captured.

That is, in normal times when there is no fog, the intensity of infrared rays photographed by the photographing module unit 310 and analyzed by the analyzer 320 may be maintained within a predetermined range equal to or greater than a preset reference value.

At this time, since the intensity that satisfies the reference value is measured, the corresponding unit 330 generates a maintenance signal for maintaining the infrared output intensity by the infrared transmission device 200 for detecting fog, and the communication unit 340 generates A maintenance signal may be transmitted to the infrared transmission device 200 for detecting fog so that the intensity of infrared output may be maintained.

On the other hand, in a foggy situation, the intensity of infrared rays photographed by the photographing module unit 310 and analyzed by the analysis unit 320 falls short of a preset reference value, and the corresponding unit 330 may generate a change signal. , The communication unit 340 may transmit the generated change signal to the infrared transmission device 200 for detecting fog so that the intensity of the infrared output can be adjusted.

Therefore, as described above, in the infrared transmitting device 200 for detecting fog, the intensity of infrared output using a plurality of LEDs can be increased step by step, and as a result, the spectral intensity of infrared rays measured as less than the reference value is reduced to the reference value. It can be measured as reaching or exceeding a reference value.

On the other hand, it is preferable that the infrared receiving device 300 for detecting fog is configured to check the number of pixels in which infrared rays are photographed in real time or at regular intervals, and through this, an automatic inspection function can be implemented.

That is, since the infrared transmitter 200 for detecting fog and the infrared receiver 300 for detecting fog are installed along the road, strong drafts or vehicle collisions may occur and the initially set positions may be distorted. In this case, Determination of a situation in which thick fog occurs may generate a change signal by the infrared receiver 300 for detecting fog, and accordingly, unnecessary infrared output adjustment may occur.

Therefore, the infrared receiver 300 for detecting fog checks the number of pixels where infrared rays are photographed in real time or at regular intervals, and when the number of checked pixels decreases below a certain rate, a notification message is generated and a unique identification number is displayed. By being configured to transmit to the set administrator terminal, a slight distortion can be allowed, but if more distortion occurs, maintenance by the manager can be performed.

That is, when it is determined that the region where infrared rays are detected by the light emitting module unit provided in the infrared receiver 300 for detecting fog is determined to be more than a preset value from the reference value, an alarm message is sent to determine the error information This can prevent malfunctions.

On the other hand, although not shown in FIG. 7, the infrared emitting device 200 for detecting fog may also have an auxiliary power supply unit and a main power supply unit similarly to the lighting control device 100, and minimize power consumption by performing their switching/conversion function. You can do it.

As described above, the lighting control device 100, the infrared transmitting device 200 for detecting fog, and the infrared receiving device 300 for detecting fog may be configured as separate devices, and some of the components for control among them may be configured integrally.

For example, in the infrared transmitter 200 for detecting fog, the light emitting control unit 220, the generating unit 230, and the communication unit 3240, and in the infrared receiver 300 for detecting fog, the photographing module unit 310 analyzes the unit ( 320), the correspondence unit 330, and the communication unit 340 may be integrally configured in one physical case.

As described above, according to the present invention, the intensity of infrared rays transmitted by the infrared transmitter 200 for detecting fog is maintained or changed by a maintenance signal or a change signal generated according to the analysis result of the infrared receiver 300 for detecting fog. The infrared transmitter 200 for detecting fog determines the distance between the infrared transmitter 200 for detecting fog and the infrared receiver 300 for detecting fog based on the intensity of the emitted infrared rays, and then determines the distance. Accordingly, a control signal for controlling the brightness of the fog lamp 3 is transmitted to the lighting control device 100 .

In particular, in the prior art, as in the present invention, the degree of fog is not determined according to the transmission and reception of infrared signals between the lighting control device 100 and the infrared transmission device 200 for detecting fog, but the air particles themselves are analyzed, so FIG. 6 ( As in a), it was not possible to include a blowing structure inside the infrared emitting device 200 for fog detection and use it.

That is, in the case of using such a blowing structure, a larger error may occur in measuring the fog density because the moisture particles in the air are dispersed.

However, according to the present invention, since errors due to conventional problems do not occur, a ventilation structure can be included, and accordingly, problems caused by providing a screen d for blocking sunlight can be solved.

Meanwhile, electronic control blocks of the lighting control device 100, the infrared emitting device 200 for detecting fog, and the infrared receiving device 300 for detecting fog according to the present invention are shown in FIGS. 8 to 10.

As shown in the drawings, each device is provided with an auxiliary power source so that minimum communication can be performed even when the main power is cut off, thereby minimizing standby power, and also, through PWM control, current for LEDs, fog lights, and street lights control can be performed.

In the above-described embodiment, a system including both the lighting control device 100 as well as the infrared transmitting device 200 for detecting fog and the infrared receiving device 300 for detecting fog has been described as an example, but lighting according to the present invention As shown in FIG. 2, the control device 100 is provided near the pair of street lights 2 and fog lights 3 to determine the conventional fog density according to information received from a separate sensor. It goes without saying that control of the fog lights 3 may be performed.

For example, in the infrared transmitter 200 for detecting fog, the light emitting control unit 220, the generating unit 230, and the communication unit 3240, and in the infrared receiver 300 for detecting fog, the photographing module unit 310 analyzes the unit ( 320), the correspondence unit 330, and the communication unit 340 may be integrally configured in one physical case.

The present invention is not limited to the specific embodiments described above, but can be practiced with various modifications and variations within the scope of the present invention. It will be apparent that such variations and modifications are included in the present invention provided they fall within the scope of the appended claims.

1: road lighting control system 100: lighting control device
200: Infrared transmitter for fog detection
300: Infrared receiver for detecting fog

Claims (7)

delete delete a lighting control device for controlling at least one of lighting and lighting brightness of individual fog lights and individual streetlights according to a control signal received from the outside through a communication channel;
an infrared transmission device for detecting fog that transmits infrared rays to the outside and changes the intensity of the infrared rays transmitted to the outside according to an infrared emission control signal received from the outside through a communication channel;
An infrared receiver for detecting fog for receiving infrared rays transmitted by the infrared transmitter for detecting fog, generating an infrared transmission control signal based on the strength of the received infrared rays, and transmitting the signal to the infrared transmitter for detecting fog through a communication channel. including,
The lighting control device, the infrared emitting device for detecting fog, and the infrared receiving device for detecting fog communicate with each other through a communication channel of a power line communication method,
Infrared transmission device for detecting fog, for the purpose of removing dust, a blower for blowing upward and an L-shaped air passage are provided in the inner hollow, and one or more air outlets for sending out the wind transported through the air passage in a horizontal direction are all a housing formed at an upper edge of the side and provided with a shield to block sunlight incident on the front surface for the purpose of preventing scattering of infrared rays by sunlight; a light emitting module unit configured in a plate shape in which a plurality of LEDs emitting infrared rays are disposed and installed on a front surface of the housing; an LED control unit for controlling the output of the plurality of LEDs disposed in the light emitting module unit based on the infrared transmission control signal transmitted from the infrared receiver for detecting fog; a generator configured to generate a control signal according to an intensity of an infrared output equal to or higher than a reference value corresponding to the sustain signal when the infrared transmission control signal is a sustain signal; A road lighting control system comprising a communication unit for receiving an infrared transmission control signal transmitted by the infrared receiver for detecting fog and transmitting a control signal generated by the generation unit to the lighting control device. delete According to claim 3,
At least one of the lighting control device, the infrared emitting device for detecting fog, and the infrared receiving device for detecting fog includes an auxiliary power source for mutual communication processing and a main power source for performing a main function other than communication, wherein the The lighting control device, the infrared emitting device for detecting fog, and the infrared receiving device for detecting fog maintain a communication standby state through an auxiliary power supply, and then turn on the main power when the main function is required to be performed by information or signals received through a communication channel. Road lighting control system, characterized in that for supplying. delete According to claim 3,
The infrared receiver for detecting fog,
a photographing module unit for photographing the plurality of infrared rays emitted by the infrared transmitter for detecting fog in a horizontal direction;
an analyzer that analyzes the intensity of the captured infrared rays;
In a situation where the intensity that does not reach the reference value is measured, a change signal is generated for controlling the output of the infrared transmission device for detecting fog, and in a situation where the intensity that satisfies the reference value is measured, for maintaining the output of the infrared transmission device for detecting fog a counterpart for generating a sustain signal;
The road lighting control system, characterized in that it comprises a communication unit for transmitting an infrared transmission control signal corresponding to the maintenance or change signal generated by the corresponding unit to the infrared transmission device for detecting fog.

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