KR102091685B1 - Lighting device for sign board for road safety - Google Patents

Abstract

The present invention relates to a lighting device and, more specifically, to a lighting device for a road safety sign, which provides light to increase identification power of a road safety sign installed on a motorcar road without a separate power supply module. According to embodiments of the present invention, the lighting device for assisting a road sign has a feature of being lightweight, thin, short, and small and can be quickly and conveniently attached to a road sign of a structure. The lighting device can efficiently prevent an occurrence of an accident caused by a problem where a road sign cannot be identified since a road safety sign at a long distance is not clearly seen if surrounding illumination is insufficient on a road without a streetlight when driving at night and the sign cannot be illuminated due to a situation when a vehicle on the opposite side drives.

Description

LIGHTING DEVICE FOR SIGN BOARD FOR ROAD SAFETY

The present invention relates to a lighting device, the present invention relates to a lighting device for a road safety sign that does not have a separate power supply module and provides light for increasing the discrimination power of a road safety sign installed on an automobile road or the like.

Road safety signs mainly refer to signs that are usually installed on the side of a road or the top of a roadway to secure traffic safety and promote road maintenance on roads where vehicles are driving.

According to the purpose of the road safety sign, road information such as a direction sign, a signpost, a landmark city, a route sign, and an auxiliary sign is marked, and information or regulation of various information is provided to a vehicle driver or a passenger.

In general, the driver of the vehicle directly checks the road surface or surrounding facilities while driving during the daytime, but in the case of dark night, the risk of an accident increases rapidly as the field of view due to the road surface or facilities becomes significantly narrow.

To solve this problem, conventionally, a reflector or a flashing light is installed along the road in the center of the road or on the shoulder of the road to guide the road safely by allowing the driver to recognize the road condition.

It is common for such road signs to reflect the light of the sun or the headlights of a vehicle without self-illuminating devices so that they enter the driver's view. However, there is a problem in that the traffic safety sign is not identified because the sufficient light reflection is not made when the angle of the car lighting does not rise upward during night driving, and there is a case where auxiliary lighting is used to compensate for this.

However, in an out-of-center area or on a road with low vehicle traffic, the auxiliary lighting cannot be used in areas where power is supplied to the auxiliary lighting, so there is still a risk of safety accident due to lack of identification at night.

Publication Patent Publication No. 10-2014-0054835 (Publication date: 2014.05.09.)

The present invention has been devised to solve the above-mentioned problems, and the present invention has a problem in providing a lighting device for increasing the identification of road safety signs installed on automobile roads and the like.

In addition, the present invention is easy to install on a road safety sign, self-power generation can supply power for driving itself, and another problem to provide a lighting device that can freely change the lighting direction according to the intention There is.

In order to solve the above-described problem, the lighting device for a road safety sign according to a preferred embodiment of the present invention includes a front support part supporting an upper front surface of the road safety sign and an upper rear surface of the road safety sign facing the front support part. It includes a back support part that supports, and a clip part in which the shaft is inserted into the center of the bent part of which both side ends are bent upward, and a solar module that generates electric power according to the incidence of sunlight is mounted. It may include a first housing coupled to the first housing and one or more LED modules that emit light at a predetermined brightness through the power generated by the solar module, and the second housing coupled to the other end to be rotatable on the axis. .

The front support portion is bent in the shape of an 'a' so that the horizontal area is in close contact with the upper front of the road safety sign, and the rear support portion is coupled in a forward direction so that the fixed pad is in close contact with the upper back of the road safety sign Including, it can be fixed to the top of the road safety sign as the front support and the fixing pad is engaged.

A circuit module electrically connected to the solar module and the LED module may be mounted in the rear support portion.

The circuit module includes a plurality of components implemented by one or more circuit elements mounted on a substrate, and the components are DC / DC converters for converting power generated by the solar modules into DC waveforms of a certain level. A battery for storing the stored power, a DC signal for stabilizing the power supplied from the battery to a voltage of a DC waveform suitable for the LED module, and outputting a DC output to the LED module, and a PWM signal for controlling a driving voltage output from the DC output. It may include a control unit for determining the lighting period of the LED module according to a predetermined cycle using the output PWM unit and the power charged in the battery, and driving the PWM unit according to the lighting period.

The circuit module may further include an actuator that is mechanically coupled to the first housing or the second housing to change the mounting angle under the control of the control unit.

The circuit module is connected to the external system through a wired or wireless communication and a mounting angle of the first housing or the second housing to correspond to a surrounding environment in which a road safety sign is installed according to an external control signal received by the communication unit. It may further include an additional function for adjusting.

The clip portion is formed with a hole at the bottom, and a support rod is inserted and fixed, and the support rod intersects in a vertical direction with a horizontal pillar formed on the rear side of the road safety sign, and is connected to the horizontal pillar by a pair of 'U' hooks. Can be fixed.

According to an embodiment of the present invention, a road sign auxiliary lighting device having a feature of a light and small section and easily attaching to a road sign of a structure in a short time, a long distance when there is insufficient ambient light on a road without a street light at night driving While the road safety sign on the road is not clearly visible, it is possible to effectively prevent the occurrence of a safety accident due to the problem that it is impossible to identify the road sign due to the situation when driving the vehicle on the other side.

1A and 1B are views showing a perspective view and a side view in a front direction when installing a lighting device for a road safety sign according to an embodiment of the present invention.
2A and 2B are views showing a perspective view and a side view in a rear direction when installing a lighting device for a road safety sign according to an embodiment of the present invention.
3 is a view of the internal structure of the clip portion of the lighting device for a road safety sign according to an embodiment of the present invention.
4 is a block diagram showing an internal circuit structure of a lighting device for a road safety sign according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

The terminology used herein is for describing the embodiments and is not intended to limit the present invention. In the present specification, the singular form may also include the plural form unless otherwise specified in the phrase.

Unless otherwise defined, all terms used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless explicitly defined.

Hereinafter, embodiments of the present specification will be described with reference to the accompanying drawings. However, this does not limit the technology described herein to specific embodiments, and it should be understood that it includes various modifications, equivalents, and / or alternatives of the embodiments herein. . In connection with the description of the drawings, similar reference numerals may be used for similar components. In this specification, expressions such as “have,” “can have,” “includes,” or “can include,” include the presence of a corresponding feature (eg, a component such as a numerical value, function, operation, or part). And does not exclude the presence of additional features.

In this specification, expressions such as “A or B,” “at least one of A or / and B,” or “one or more of A or / and B”, etc. may include all possible combinations of the items listed together. . For example, “A or B,” “at least one of A and B,” or “at least one of A or B,” (1) includes at least one A, (2) includes at least one B, Or (3) all cases including both at least one A and at least one B. As used herein, expressions such as "first," "second," "first," or "second," may modify various components, regardless of order and / or importance, and denote one component. It is used to distinguish from other components, but does not limit the components. For example, the first user device and the second user device may indicate different user devices regardless of order or importance. For example, the first component may be referred to as a second component without departing from the scope of rights described herein, and similarly, the second component may also be referred to as a first component.

Some component (eg, first component) is "(functionally or communicatively) coupled with / to" another component (eg, second component), or " When referred to as "connected to", it should be understood that any of the above components may be directly connected to the other component or may be connected through another component (eg, a third component). On the other hand, when it is mentioned that one component (eg, the first component) is “directly connected” or “directly connected” to another component (eg, the second component), the component and the component are It can be understood that there are no other components (eg, the third component) between the other components.

As used herein, the expression "configured to (or configured)" is, depending on the situation, for example, "suitable for," "having the capacity to" , "" Designed to, "" adapted to, "" made to, "or" capable of "can be used interchangeably. The term "configured (or set) to" may not necessarily mean only "specifically designed to" in hardware. Instead, in some situations, the expression "a device configured to" may mean that the device "can" with other devices or parts.

For example, the phrase “processors configured (or set) to perform A, B, and C” means by executing a dedicated processor (eg, an embedded processor) to perform the operation, or one or more software programs stored in the memory device. , It may mean a generic-purpose processor (for example, a CPU or an application processor) capable of performing the corresponding operations.

The terms used in this specification are only used to describe specific embodiments, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person skilled in the art described in the present specification. Among the terms used in the present specification, terms defined in a general dictionary may be interpreted as meanings identical or similar to meanings in the context of related technologies, and are ideally or excessively formal meanings unless explicitly defined herein. Is not interpreted as In some cases, even terms defined herein cannot be interpreted to exclude embodiments of the present specification.

Hereinafter, a lighting device for a road safety sign according to a preferred embodiment of the present invention will be described with reference to the drawings.

1A and 1B are views showing a perspective view and a side view in a front direction when installing a lighting device for a road safety sign according to an embodiment of the present invention.

1A and 1B, a lighting device 100 for a road safety sign according to an embodiment of the present invention includes a front support 111 and a front support 111 supporting the upper front of the road safety sign 10 A clip portion 110 which includes a rear support portion 115 which faces the upper rear of the road safety sign 10 facing each other, and into which the shaft 114 is inserted into the center of the bending portion 113 whose both ends are bent upward. And, the solar module 101 for generating power according to the incident of sunlight is mounted, the first housing 120 is coupled to the lower side so as to be rotatable on the shaft 114, and the solar module 101 at one end ) May include a second housing 130 that is mounted with one or more LED modules 102 that emit light at a predetermined brightness through the generated power, and that the other end is rotatably coupled to the axis.

The clip unit 110 is to fix the lighting device 100 of the present invention on the road sign 10 installed on the road in each area, the lower end is formed in the form of tongs and coupled to the top of the road safety sign 10 , Can be fixed.

In the clip part 110, the front support part 111 to which a rigid metal plate bent with a letter 'a' in the front direction is screwed supports the front surface of the road safety sign 10, and the rear support part 115 is provided in the rear direction. As the back side of the road safety sign 10 is supported through the movable fixing pad 116, the lighting device 100 can be stably fixed without flow by holding the upper both sides of the road safety sign 10. have.

In addition, a predetermined hole 119 to which the support rod 105, which is an auxiliary support means for more rigidly maintaining the fixed state of the lighting device 100, is coupled is formed under the clip portion 110, and the support rod ( As 105) is fixed to the road safety sign 10 by a separate fixing means, the fixed state of the clip unit 110 can be more stably maintained.

The first housing 120 is attached to and exposed by a solar module 101 including a plurality of solar cells for self-generation, and is not connected to a separate external power supply means, but is powered for driving through solar power generation. Will generate In the first housing 120, a support extending to the lower surface is inserted between the bent portions of the clip unit 110, and the shaft 114 is inserted to be disposed on the clip unit 110 in a rotatable form. .

Here, the coupling force between the first housing 120 and the clip portion 110 is such that it can maintain the current state of mounting unless an external force above a certain level is applied, and the administrator can adjust the angle d1 by hand. Is designed.

An LED module 102 that forms a surface light source including one or more LED lamps and irradiates a certain amount of light downward may be disposed as an inner lower space of the second housing 130. The LED module 102 is disposed at the end of the extension rod 135 of a predetermined length, and may be connected to the shaft 114 so that the other end is rotatable.

Typically, the driving time of the LED module 102 can be set from after sunset to just before sunrise of the next day.

Accordingly, the adjustment of the angle d1 of the first housing 120 adjusts the incident angle of sunlight of the solar module 101, and the adjustment of the angle d2 of the second housing adjusts the light irradiation direction of the LED lamp. Accordingly, the manager should determine the angle by properly considering the amount of photovoltaic power generation in the area and the amount of light to be irradiated on the road safety sign.

On the other hand, the interior of the second housing is a circuit that is electrically connected to the solar module 101 and the LED module 102 to temporarily store the generated power and to generate a driving voltage of the LED module 102 through the power. A module (not shown) may be mounted, which may control the light emission timing of the LED module 102 and generate control signals for driving other lighting devices 100.

According to the above-described structure, the lighting device of the present invention may provide night auxiliary lighting to a road safety sign installed in an area where power supply is difficult. Such a lighting device is a lighting device that can be used semi-permanently using only a solar module and a small battery. Through the power supply control method of the LED module, sufficient light is irradiated with minimum power consumption to identify the road safety sign during night driving. It can be heightened, can be easily mounted on any road safety sign, and the angle of the solar module and LED module can be easily changed and fixed using a single axis.

In addition, the clip portion 110 of the lighting device for a road safety sign according to an embodiment of the present invention is stably installed on a road safety sign by a front support and a rear support, but in order to further increase rigidity in the installation state The coupling state may be supplemented through a separate support rod 105.

2A and 2B are views showing a perspective view and a side view in a rear direction when installing a lighting device for a road safety sign according to an embodiment of the present invention.

Referring to Figures 2a and 2b, the clip portion 110 is formed with a bent portion 113 to which the first housing and the second housing are connected to the shaft 114, and to the lower portion of the bent portion 113. A hole 119 extending a predetermined length is further formed. Inside the hole 119, a support rod 105 of a predetermined length is inserted and fixed in a vertical direction with the ground. Here, as the inner diameter of the hole 119 is designed to correspond to the outer diameter of the support rod 105, the support rod 105 may be inserted and fixed in the hole 119.

And, the support bar 105 crosses at least one horizontal pillar 15 formed on the rear side of the road safety sign 10 in the vertical direction, and in the direction of the horizontal pillar 15 by a pair of hooks 106 It is pulled and fixed.

Here, the hook portion 106 may be in the form of an 'U' shaped ring with one side open, and the support rods 105 are inserted into the two, so that the two are in contact with the upper and lower portions of the horizontal column 15, As it is tightened by the fixing plate 107 that is coupled using a nut on the opening side, it supports the support rod 105 and the clip portion 110 connected to its end.

On the other hand, the lighting device for a road safety sign according to an embodiment of the present invention may temporarily include the power generated by the solar module, and may include a circuit module for providing the LED module according to the lighting time and controlling the light emission time point. , This circuit module may be disposed inside the above-described clip portion.

Hereinafter, the internal structure of the clip portion of the lighting device for a road safety sign according to an embodiment of the present invention will be described in detail with reference to the drawings.

3 is a view of the internal structure of the clip portion of the lighting device for a road safety sign according to an embodiment of the present invention.

Referring to FIG. 3, the clip unit 110 of the lighting device for a road safety sign according to an embodiment of the present invention may be formed with a predetermined space inside the back support 115 supporting the road safety sign from the rear. , A printed circuit board (PCB) in which each component of the circuit module is implemented in one side of the space may be disposed.

A plurality of circuit elements may be bonded to at least one surface of the printed circuit board (PCB), and the circuit elements may be implemented in the form of a passive element or an IC such as an MCU, a resistor, a memory, and a communication unit. Various functions for controlling the lighting device of can be programmed and recorded.

In addition, although not shown, the printed circuit board (PCB) is electrically connected to the external solar module and the LED module through a plurality of wires to store the generated power and provide a control signal to the LED module.

The detailed description of the structure of the above-described circuit module will be described later.

On the other hand, the inner side of the rear support portion 115 faces the front support portion 111, and as the front support portion 111 contacts the front side of the road safety sign 10, the rear side of the road safety sign 10 in the opposite direction Fixing pad 116 for supporting may be disposed.

The fixing pad 116 may be made of a material such as a polymer having elasticity and high friction, and a pressing portion 117 exposed to the outside through a hole (not shown) formed in the rear support portion 115 It can be connected to be formed in a structure that can be moved forward or backward depending on the rotation direction of the pressing portion 117.

According to this structure, the administrator can install the clip 110 by adjusting the pressing portion 117 to advance the fixing pad 116 to engage with the road safety sign 10 along with the front support portion 111.

Hereinafter, a structure of a circuit module of a lighting device for a road safety sign according to an embodiment of the present invention will be described in detail with reference to the drawings.

4 is a block diagram showing an internal circuit structure of a lighting device for a road safety sign according to an embodiment of the present invention.

Referring to FIG. 4, the lighting device 100 for a road safety sign according to an embodiment of the present invention includes a solar module 101 that generates power according to incident sunlight, and one or more LED modules 102 that emit light at a predetermined brightness ) And the circuit module 140 for controlling the lighting of the LED module 102 by using the power generated by the solar module 101, the circuit module 140 is mounted by one or more circuit elements mounted It includes a plurality of components to be implemented, each component is a DC / DC converter 141 for converting the power generated by the solar module 101 to a DC waveform of a certain level, a battery 142 for storing the converted power, Stabilize the power supplied from the battery 142 to a DC waveform voltage suitable for the LED module 102 to control the DC output unit 144 output to the LED module 102 and the driving voltage of the DC output unit 144 PWM unit 145 and a battery 142 for outputting the PWM signal According to a predetermined cycle by using the charged power determines the on-period of the LED module 102, and may include a control unit 149 which drives the PWM unit 145 according to the on-period.

The photovoltaic module 101 may be composed of a plurality of photovoltaic cell arrays that produce power according to the incidence of sunlight, and a frame surrounding the cell array. In the solar cell, an EVA sheet (ethylene vinyl acetate sheet) may be formed on both sides of the cell element to seal the cell unit, and a transparent substrate is formed on the front side where sunlight enters, and a rear sheet on the back side. (back sheet) may be a laminated structure. Here, a 3 watt (Watt) class cell may be used as the solar cell.

When viewed in cross section, the solar module 101 may be a structure in which a transparent substrate, an EVA sheet, a cell element, an EVA sheet, and a back sheet are sequentially stacked, and manufactured by being adhered by heating and crosslinking at a specific temperature and pressure. You can.

Here, the rear sheet may be made of a material having excellent properties of gas and moisture barrier properties and weather resistance in consideration of the changing weather conditions of the road, and its shape, thickness, material, etc. are not limited to a specific member.

The LED module 102 may be composed of a plurality of LED lamps that emit light at a predetermined luminance. The LED lamp used in the LED module 102 may include a phosphor that changes the wavelength of light emitted from the built-in chip, and as an example, a blue LED emitting chip and a phosphor that absorbs blue light and emits white light. It can be implemented in a molded manner. Here, as the LED lamp, a 1 watt-class lamp with power consumption may be used.

The circuit module 140 stores the power generated by the solar module 101, converts the LED module 102 into a voltage capable of driving, and converts the LED lamp of the LED module 102 every set period. It can light up.

The circuit module 140 may be configured by a plurality of circuit elements bonded on a printed circuit board, and its functions are implemented by DC / DC converters, batteries, and MCUs.

The DC / DC converter 141 converts the power generated by the solar module 101 into a stable DC waveform by boosting or stepping down the power and input it to the battery 142.

The battery 142 may store power converted by the DC / DC converter 141. A DC 5V, 2 Ah class lithium battery may be used as the battery 142.

The DC output unit 144 may convert power from the battery 142 to stabilize to a direct current suitable for the LED module 102.

The PWM unit 145 controls a driving voltage output to the LED module 102 by supplying a PWM (Pulse Width Modulation) signal to the DC output unit 144. The PWM unit 145 reduces power consumption of the battery 142 to 1/3 level, and controls power consumption of a 1-watt LED lamp to 3 watts or less based on a maximum of 10 hours per day.

The communication unit 146 may perform data communication by wire or wirelessly with an external system separately prepared at a remote location, for example, a central control server managing lighting devices for road safety signs installed on each road.

The additional function unit 147 may transmit an external control signal transmitted from the control server to the control unit 149. As an example, the control server may estimate the optimal amount of power generation depending on the angle of incidence of sunlight according to weather and time of each region where the road safety sign is installed, and determine the optimal mounting angle of the solar module 101 according to the estimation result can do. The control server may instruct the control of the angle of the solar module 101 by transmitting a control signal corresponding to the optimal mounting angle for each hour through the communication unit 146.

Alternatively, the additional function unit 147 may request the control unit 149 to adjust the illuminance of the LED module 102 according to an external control signal transmitted from the control server.

That is, the additional function unit 147 may request the control unit 149 to adaptively drive the lighting device according to the surrounding environment.

The actuator 148, among the external control signals received by the additional function unit 147, is controlled by the control unit 149 according to a sunlight incident angle adjustment or lighting direction change request, etc., the solar module 101 or the LED module 102 ) Can be adjusted automatically.

The above-described communication unit 146, the additional function unit 147, and the actuator 138 may be omitted when designing the device for the operation of a simpler and lighter lighting device.

The control unit 149 detects the charge amount of the battery 142, calculates the required power of the LED module 102, and hourly, for example, the power charged in the battery from the sunset to the next sunrise is the LED module 102 The PWM unit 145 can be controlled to be supplied with. The control unit 149 may be implemented as an MCU programmed in a ROM with the above-described function.

That is, since the control unit 149 is converted from the DC / DC converter 141 and the power charged in the battery 142 is in the morning, noon and late afternoon for each time zone, depending on the weather, it varies depending on the sunny day and the cloudy day. , In consideration of the charge amount charged in the battery 142, calculates the amount of current required so that the LED module 102 can maintain the lighting state during the night time, and supplies it to the LED module 102 to have an illuminance of a certain level or more according to the extraction time Power can be controlled.

According to the above-described structure, the lighting device for a road safety sign according to an embodiment of the present invention may store power generated from the solar module 101 and provide auxiliary lighting at a set time.

Hereinafter, the mechanical properties of the lighting device for a road safety sign according to an embodiment of the present invention will be described in detail with reference to the drawings.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and is easily changed and equalized by one of ordinary skill in the art to which the present invention pertains from the embodiment of the present invention. It may include all changes to the extent deemed acceptable.

10: road safety sign 100: lighting device
101: solar module 102: LED module
110: clip 111: front support
113: bend 115: rear support
116: fixing pad 117: pressing portion
119: hole 120: first housing
130: second housing 140: circuit module
141: DC / DC converter 142: battery
144: DC output unit 146: communication unit
147: additional function unit 148: actuator
149: control

Claims (7)

Includes a front support for supporting the upper front of the road safety sign, and a rear support for facing the front support and supporting the upper rear of the road safety sign, the clip being inserted into the center of the bent portion with both sides bent upward. ;
A first housing in which a photovoltaic module generating power according to the incidence of sunlight is mounted, and coupled to the lower side so as to be rotatable on the axis;
One end is equipped with at least one LED module that emits light at a predetermined brightness through the power generated by the solar module, the other end includes a second housing coupled to be rotatable on the axis,
The front support portion is bent in an 'A' shape so that the horizontal area is in close contact with the upper front of the road safety sign,
The rear support portion is coupled to be able to advance in the front direction inward, and a fixed pad made of a polymer material that is in close contact with the upper rear of the road safety sign is disposed, and as the front support portion and the fixed pad are engaged, on the top of the road safety sign Fixed,
The rear support portion is electrically connected to the solar module and the LED module, and a circuit module including a plurality of components implemented by one or more circuit elements mounted on a substrate is mounted and the fixing pad is disposed. Space is formed,
The clip portion extends to the lower portion of the rear support portion, and a hole is formed horizontally with the ground, and a supporting rod, which is an auxiliary support means, is inserted and fixed in a direction perpendicular to the ground.
The support bar is disposed between the horizontal pillar formed on the rear of the road safety sign and the rear of the road safety sign, and crosses the horizontal column in the vertical direction, and is connected to the horizontal column by a pair of 'U' hooks. Is fixed, the component part,
A communication unit connected to an external system through wired or wireless communication; And
An additional function unit for adjusting the mounting angle of the first housing or the second housing to correspond to the surrounding environment where the road safety sign is installed, according to the control signal received from the control server by the communication unit
Road safety sign lighting device comprising a. delete delete According to claim 1,
The configuration unit,
A DC / DC converter that converts power generated by the solar module into a DC waveform of a certain level;
A battery that stores the converted power;
A DC output unit stabilizing the power supplied from the battery to a voltage of a DC waveform suitable for the LED module and outputting it to the LED module;
A PWM unit outputting a PWM signal controlling a driving voltage output from the DC output unit; And
Control unit for determining the lighting period of the LED module according to a predetermined cycle using the power charged in the battery, and driving the PWM unit according to the lighting period
Road safety sign lighting device comprising a. The method of claim 4,
The circuit module,
Under the control of the control unit, an actuator that is mechanically coupled to the first housing or the second housing to change the mounting angle
Road safety sign lighting device further comprising. delete delete

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