KR20210120458A - Smart streetlight - Google Patents

Abstract

The present invention relates to a smart street light including an LED lamp. The smart street light according to one embodiment of the present invention includes: a camera member coupled to the street light and recording the situation surrounding the street light; an LED lamp displaying one of a plurality of colors; and a control unit controlling the color derived at the LED lamp. The street light may further include a disaster or accident occurrence recognition sensor. The control unit includes: a building information storage unit storing information on and the safety grade of a nearby building within a predetermined distance from the installation location of the street light; a determination unit determining the color of display of the LED lamp in accordance with the information on the building within the predetermined distance from the street light in a case where the occurrence of a disaster is recognized by the sensor; and a signal application unit applying a signal to the LED lamp so that the color determined by the determination unit is displayed.

Description

Smart Street Light {SMART STREETLIGHT}

The present invention relates to a smart street light. More specifically, the invention relates to a smart street light capable of indicating the safety level of a street light and adjacent facilities when a disaster situation occurs.

Currently, Korea is promoting a plan to realize a smart city as a core task of the 4th industrial revolution response strategy. Among smart city services, the smart street lamp proposed by the present invention focuses on crime prevention and convenience provision functions in addition to the lighting function. This is limited to the extent to which existing street lights are converted to a central control system, then the lights are replaced with LEDs and CCTVs or sensors are installed. However, in the case of such a street lamp, there is a disadvantage that only a function of recording in real time is not possible, and there is a disadvantage in that it cannot show a practical effect when a disaster situation or a disaster situation occurs.

An object of the present invention is to provide a smart street lamp that can be used as an infrastructure for responding to disasters and disasters.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and the problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings. .

A smart street light according to an embodiment of the present invention is disclosed.

A smart street light including an LED lamp, comprising: a camera member coupled to the street light and recording a surrounding situation of the street light; LED lamp in which any one of a plurality of colors is displayed; and a control unit controlling the color derived from the LED lamp.

The street lamp may further include a sensor for recognizing whether a disaster or disaster has occurred.

The control unit may include: a building information storage unit for storing information on surrounding buildings and safety ratings of buildings disposed within a predetermined distance from the location where the street lamp is installed; a determining unit configured to determine a color displayed on the LED lamp according to information on a building disposed within a predetermined distance from the street lamp when it is recognized that a disaster has occurred through the sensor; and a signal applying unit for applying a signal to the LED lamp to display the color determined by the determining unit.

When a disaster or occurrence of a disaster is recognized through the sensor, the controller may control the LED lamp to display any one color among red, yellow, and green.

The street light may further include an electric billboard, and when the color displayed on the LED lamp of the street light is not green, the electric billboard may display a shortest route from which the LED lamp goes to another adjacent street light indicated in green.

The street light may further include an electric sign, and when the color displayed on the LED lamp of the street light is green, the electric sign may indicate an entrance direction of a building adjacent to the street light.

When the color displayed on the LED lamp of the street lamp is green, the electric signboard may display the current number of evacuated people and the number of people that can be accommodated in real time.

According to the present invention, a smart street lamp that can be used as an infrastructure for responding to disasters and disasters may be provided.

According to the present invention, when a disaster situation occurs, a level of safety can be secured by allowing people to evacuate smoothly through the color displayed on the street lamp.

Effects of the present invention are not limited to the above-described effects, and effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and accompanying drawings.

1 is a view showing an example of a smart street light according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a smart street light according to an embodiment of the present invention.
3 to 4 are diagrams illustrating an example in which a smart street light according to an embodiment of the present invention is installed on a road.
5 is a flowchart illustrating an operation method of a smart street light according to an embodiment of the present invention.
6 is a diagram for explaining an electric sign display algorithm when a smart street lamp is red.
7 is a diagram for explaining an electric sign display algorithm when the smart street lamp is yellow.
8 is a diagram for explaining an electric sign display algorithm when a smart street lamp is green.

Other advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only this embodiment serves to complete the disclosure of the present invention, and to obtain common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Even if not defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by common technology in the prior art to which this invention belongs. Terms defined by general dictionaries may be interpreted as having the same meaning as in the related description and/or in the text of the present application, and shall not be interpreted conceptually or overly formally, even if not expressly defined herein. won't

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, 'comprise' and/or various conjugations of this verb, eg, 'comprise', 'comprising', 'comprising', 'comprising', etc., refer to the referenced composition, ingredient, component, A step, operation and/or element does not exclude the presence or addition of one or more other compositions, components, components, steps, operations and/or elements. As used herein, the term 'and/or' refers to each of the listed components or various combinations thereof.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, shapes and sizes of elements in the drawings may be exaggerated for clearer description.

As used throughout this specification, '~ unit' is a unit that processes at least one function or operation, and may refer to, for example, a hardware component such as software, FPGA, or ASIC. However, '~part' is not meant to be limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors.

As an example, '~ part' denotes components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, and sub It may include routines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. A function provided by a component and '~ unit' may be performed separately by a plurality of components and '~ unit', or may be integrated with other additional components.

The smart street light according to the present invention is a smart street light incorporating IoT technology, and refers to an LED street light that performs a disaster prevention function by installing an LED lamp that can be expressed in three colors according to the safety level of surrounding facilities. The smart street light according to the present invention can be involved in all processes of disaster/disaster prevention, response, and recovery.

The smart street lamp according to the present invention is controlled so that the LED lamps including the street lamps are displayed in different colors according to the safety level of the adjacent facilities in the event of a disaster, so that people inside and outside the building see the color of the LED lamp of the street lamp and evacuate to a safe facility can help make it possible.

When the smart street lamp according to the present invention is installed and operated, it is possible to use it as a disaster prevention infrastructure that enables an effective response in the event of a disaster or disaster situation.

Hereinafter, the structure and operation method of a smart street light according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a view showing an example of a smart street light 1 according to an embodiment of the present invention.

According to FIG. 1 , a smart street light 1 according to the present invention may include a camera member 10 , an LED lamp 20 , a controller 30 , and an electric sign 50 .

The camera member 10 included in the smart street light 1 according to the present invention may be coupled to the upper side of the smart street light 1 . The camera member 10 coupled to the upper side of the smart streetlight 1 can monitor all directions of the location where the streetlight is installed. The camera member 10 may be rotated 360 degrees. The camera member 10 may be a CCTV.

The LED lamp 20 included in the smart street lamp 1 according to the present invention may display a plurality of colors. The LED lamp 20 included in the smart street light 1 according to the present invention may display any one color of red, yellow, and green. The LED lamp 20 may display any one of red, yellow, and green colors when a disaster situation is recognized. The LED lamp 20 may display white color when not in a disaster situation.

According to the exemplary embodiment of FIG. 1 , a plurality of LED lamps 20 may be provided. According to an embodiment, a plurality of LED lamps 20 may be provided so that when viewed from a distance, the esthetic may be higher. However, according to another embodiment, the LED lamp 20 may be provided as one.

The control unit 30 included in the smart street lamp 1 according to the present invention may control the color displayed on the LED lamp 20 . A specific configuration of the control unit 30 will be described later with reference to FIG. 2 .

The smart street light 1 according to the present invention may further include a sensor 40 that can recognize it when a disaster occurs. The sensor 40 may recognize a disaster when it occurs and transmit the type of the disaster to the controller 30 . According to one example, the disaster may be a natural disaster such as a flood, an earthquake, or a fire. or other accidental circumstances.

The electric sign 50 included in the smart street light 1 according to the present invention may be disposed on the smart street light 1 . According to an example, the electric sign 50 may be disposed adjacent to the LED lamp 20 . According to an example, the electric sign 50 may be disposed in the middle of the plurality of LED lamps 20 . The electric sign 50 may display additional information to help citizens evacuate when a disaster situation occurs. According to an example, the electric sign 50 may indicate a route to a building having a high safety rating through a direction display. According to an example, the electric sign 50 may monitor the surroundings with the camera member 10 , and display the current evacuation situation on the electric sign 50 . The electric sign 50 may display the number of people currently evacuated and additionally accommodating persons in the corresponding building on the electric sign 50 in real time. Information that can be displayed by the electric sign 50 is not limited thereto, and various information related to a disaster, such as relaying a disaster situation in real time, may be displayed.

According to an example, the smart street lamp 1 according to the present invention may further include a blocking case surrounding the control unit 30 . The blocking case may be provided with a high-strength material to protect the control unit 30 even in a disaster or disaster situation.

2 is a block diagram showing the configuration of a smart street light 1 according to an embodiment of the present invention.

According to FIG. 2 , the control unit 30 of the smart street lamp 1 according to an embodiment of the present invention may include a building information storage unit 31 , a determination unit 32 , and a signal applying unit 33 .

The building information storage unit 31 may store information on surrounding buildings disposed within a predetermined distance from the location where the street lamp is installed and information on safety ratings of buildings. According to an example, the predetermined distance may be 1 km. However, this distance may be changed according to a user's setting.

The building information storage unit 31 may store land ledger information of a building adjacent to a location where a street lamp is installed. The building information storage unit 31 may store currently used situation information of an adjacent building. The building information storage unit 31 may store safety level information of the building.

The safety level can be determined by comprehensively considering the purpose for which the building is currently used and whether the building can be secured in an evacuation area.

The safety level may be classified into grades 1 to 3. Class 1 may be buildings and structures that are judged to be safe in a disaster or disaster situation. Class 2 may be buildings and structures that are relatively safe but may present potential hazards. Class 3 may be buildings and structures vulnerable to disasters that are likely to collapse in the event of a disaster.

According to one example, the first-class building may be a sports center or the like. According to an example, the second-class building may be a hospital. According to one example, the grade 3 building may be a subway station.

However, determining such a safety level is not just determined according to the purpose of the building itself, but can be determined by comprehensively considering the aging state of the building or the safety-related preparedness state. This safety level information may be updated periodically.

The determination unit 32 may determine a color displayed on the LED lamp 20 according to information on a building disposed within a predetermined distance from the street lamp when it is recognized that a disaster has occurred through the sensor 40 .

As described above, the smart street light 1 according to the present invention may display information about a building located at the nearest street to the corresponding street light through the LED lamp 20 . When there are several buildings located within a certain distance from the smart street light 1, the safety level of the building located at the closest distance among them may be displayed.

According to an example, when the safety level of a building located in the nearest street is level 1, the determination unit 32 may determine to display green on the LED lamp 20 of the corresponding street lamp. According to one example, the determination unit 32 may determine to display yellow on the LED lamp 20 of the street lamp when the safety level of the building located on the nearest street is level 2. According to an example, when the safety level of the building located on the nearest street is level 3, the determination unit 32 may determine to display red on the LED lamp 20 of the corresponding street lamp.

The signal applying unit 33 may apply a signal to the LED lamp 20 to display the color determined by the determining unit 32 .

3 to 4 are diagrams illustrating an example in which a smart street light according to an embodiment of the present invention is installed on a road.

In more detail, FIG. 3 shows a plan view in which a smart street lamp according to an embodiment of the present invention is installed on a road.

According to FIG. 3 , an example in which a plurality of smart street lights according to the present invention are installed on a road according to an example is disclosed. According to FIG. 3 , a symbol indicated by a circle means a smart street lamp. Smart street lights may be installed to surround a building based on one building. However, the embodiment shown in FIG. 3 is merely an example, and the location at which the smart street light is installed may correspond to the location of the already installed street light.

Before a disaster, the management system linked to the street light may assign a unique number to the street light. The management system may assign a unique number to the street light and set the safety rating of the street light and adjacent buildings for each disaster situation. The management system may be a server system that connects a plurality of street lights.

A plurality of street lamps share an IoT server, and it is possible to link with other street lamps, and such a server can share the situation with all street lamps when a disaster situation occurs.

In the event of a disaster, sensors included in each street lamp may recognize the disaster situation. A server system connected to the streetlight can deliver disaster information to the streetlight. Each street lamp may receive a disaster level and change the color of the lamp compared to the respective disaster-specific rating. The output of the LED lamp may derive the maximum output of the range that the LED lamp can derive. The output of the LED lamp can be controlled to produce the maximum output regardless of the time the LED lamp is turned on.

According to FIG. 3, it shows a state in which the smart street light and adjacent building facilities are rated for safety. According to the exemplary embodiment of FIG. 3 , the physical education center may have a safety level 1 level. Middle schools and hospitals may be level 2 safety. Apartments, elementary schools, high schools, and subway stations may have a safety class 3 rating. According to the safety level of each building, it can be confirmed that the color of the LED lamp of the smart street lamps installed in the location adjacent to each building is different. The LED lamp of the smart street lamp installed adjacent to the first-class sports center shows green (indicated in a hatched form). The LED lamps of smart street lamps installed adjacent to grade 2 middle schools and hospitals show yellow (indicated in the form of dots). The LED lamps of smart street lamps installed in grade 3 apartments, elementary schools, high schools, and locations adjacent to subway stations display red (indicated in the darkest color).

In this way, when a disaster situation occurs, each smart street lamp may be controlled to recognize a disaster situation through a sensor, and to have different colors derived from each LED lamp according to the safety level of each smart street lamp and an adjacent building.

4 is a perspective view showing a smart street light installed on a road according to an embodiment of the present invention. FIG. 4 is a perspective view illustrating the embodiment of FIG. 3 .

According to the embodiment of Figure 4, each smart street light includes two LED lamps, an embodiment including an electric sign is disclosed. An electric sign is arranged in the middle of the two LED lamps included in each smart street lamp. According to FIG. 4 , smart street lights adjacent to sports facilities with safety grade 1 are displayed in green, and smart street lights adjacent to other buildings with safety grades 2 and 3 are displayed in yellow and red.

Since the yellow and red LED lamps mean that the smart street lamp displayed in the corresponding color and the adjacent buildings have a low safety rating, the smart street lamp provides information to move to a building with a higher safety rating through the electronic signage. can be additionally transmitted. Therefore, the yellow and red LED lamps can suggest the shortest distance to a building with a high safety rating in consideration of the surrounding road conditions.

In the case of a smart street lamp in which the LED lamp is displayed in green, the smart street lamp displayed in that color and the adjacent building have the highest safety rating, so the direction of the entrance to the building adjacent to the smart street light can be indicated. . The current evacuation status can be transmitted in real time to the electronic signboard of the street lamp disposed at the closest position to the entrance of a building with a safety level of 1st level. According to an example of FIG. 4 , by intuitively displaying the number of people currently accommodated in the corresponding building compared to the total number of accommodating people, it is possible to process so that a safer and more reliable evacuation is possible. That is, according to one example, in the case of a street lamp installed at the entrance of a safe facility, that is, a green street lamp, the number of evacuees can be identified through the camera member, and the number can be transmitted and shared with the server in real time.

5 is a flowchart illustrating an operation method of a smart street light according to an embodiment of the present invention.

According to FIG. 5 , the smart street lamp according to the present invention may recognize a disaster situation through a sensor. When it recognizes that a disaster has occurred, it is transmitted to the control unit, and the control unit can determine the color to be displayed on the LED lamp according to the safety level of a building disposed in a location adjacent to the corresponding smart street lamp. The control unit may display any one of red, yellow, and green color on the LED lamp according to the degree of safety level of the building.

Although not shown in FIG. 5, in the case of a disaster or disaster before the occurrence of a disaster, the smart street light may be assigned a unique number of the street light in connection with the street light and adjacent buildings in advance. As described above, the safety grades for each disaster situation of the street lamp and adjacent buildings may be divided into three grades and determined. The control unit may determine the safety level for each disaster of the building around the street lamp by dividing it into three levels. When a disaster occurs, the LED lamp can be changed to any one of red, yellow, and green based on the safety level of the building for each disaster situation. If a disaster does not occur, the smart street lamp will shine with white light and can perform the same role as the existing street lamp. However, if the sensor recognizes that a disaster situation has occurred, the color of the LED lamp included in the smart street lamp is changed, and additionally, an electric sign can be used to help people see the street light and easily evacuate. After a disaster occurs, it is possible to set priorities based on street lights and restore them. According to one example, it is possible to recover from the facility of the street lamp in which the LED lamp is displayed in red.

6 to 8 below are flowcharts for explaining in more detail the items displayed on the electric signboard according to the color of the smart street lamp.

6 is a diagram for explaining an electric sign display algorithm when a smart street lamp is red.

According to FIG. 6 , when the LED lamp is red in the smart street lamp, it is determined as the 3rd grade, which is the most dangerous safety grade. The meaning of such a street lamp indicates that the location where the current street lamp is installed is dangerous. Therefore, it searches for a streetlight with a higher safety rating among streetlights located within a certain distance from the corresponding smart streetlight. The predetermined distance may be 1 km. At this time, a street lamp with a green light on is first searched for, and only when there is no street light with a green light on, a street light with a yellow light is searched. If there is a smart street light with a green light within the set distance, the shortest distance to the smart street light with a green light is searched, and the direction to go to the corresponding street light can be transmitted on the electronic signboard. If there is no smart street light with a green light on within the set distance, it searches whether there is a smart street light with a yellow light on within a certain distance. If there is a smart street light with a yellow light on within the set distance, the shortest distance to the smart street light with the yellow light on can be searched and the direction to go to the corresponding street light can be transmitted on the electric sign board.

If there are only smart street lights with all red lights on within a certain distance, it can be shared on the server and action can be taken to move to the nearest safe building. Thereafter, information on the disaster situation is received in real time and a rescue request is performed until the disaster situation is over. When the disaster situation is over, the color of the LED lamps of all smart street lights can be changed to white.

7 is a diagram for explaining an electric sign display algorithm when the smart street lamp is yellow.

According to FIG. 7 , when the yellow light of the LED lamp of the smart street lamp is turned on, it means that it is determined as a safety level 2, which is a generally dangerous state. Therefore, it indicates that the location where the current streetlight is installed is generally dangerous, and the nearest safe facility is automatically searched. At this time, a street lamp with a green light on is searched first.

If there is a street lamp with a green light lit within a certain distance, the processing is the same as that of FIG. 6 . If there is no street light with a green light within a certain distance, a possible route to a relatively safe Level 2 building can be displayed on the electronic signboard. At this time, by checking the number of people the building can accommodate, and by changing the color of the LED lamp to red if the number of people exceeds the number, people can evacuate even if the number of people exceeds the capacity to prevent a situation that becomes dangerous. . After that, information about the disaster situation can be received in real time and a rescue request can be made until the disaster situation is over.

8 is a diagram for explaining an electric sign display algorithm when a smart street lamp is green.

According to FIG. 8 , when the smart street light is a green light, it is notified that the location where the street light is installed is the safest area. Therefore, if the street lamp is the nearest street lamp to the entrance of a building with a safety level of 1, the occupancy and current capacity of the building can be displayed to share the evacuation status in real time. If the color of the smart street lamp is green, but it is not the nearest street lamp to the entrance of a building with a safety level of 1, the direction to enter the entrance of the building may be displayed. Even in this case, when the number of accommodating people is exceeded, the situation that aggravates the risk by evacuation can be prevented by changing the color of the LED lamp to red.

That is, according to FIGS. 6 to 8, the smart street lamp according to the present invention notifies the entrance of an evacuation shelter or a safe building that can be evacuated to an adjacent location, identifies the number of occupants and transmits it to the electric sign board, and reports this to the local government. After that, if the occupancy is exceeded, the green or yellow light changes to red, and guides to another nearby shelter. Therefore, through such a system, it is possible to build an infrastructure that allows citizens to find a safe shelter in a disaster situation at a glance. When the evacuation of people is completed and the disaster situation is over, the damage situation is checked sequentially, starting with the facilities with red street lights. After the inspection of the damage situation is completed, the damage recovery is performed.

Since the smart street lamp according to the present invention does not install new facilities, but adds components by utilizing existing infrastructure, it is possible to apply it to the actual site without burden. The smart street lamp according to the present invention is effective in disasters and disasters with economy, versatility, aesthetics, and safety.

A comparison between the existing street lamp and the smart street lamp according to the present invention is as follows.

The smart street light according to the present invention does not require the installation of a new facility, but has an effect of easy construction by installing only an additional LED lamp and an electric signboard in an existing street light facility. In addition, compared to the existing street lamp, it is possible to use semi-permanently by replacing the existing lighting with LED, which has the effect of reducing the risk of minor breakdown. In addition, there may be an aesthetic effect that can improve the scenery of the road by adjusting the color and brightness of additional lighting. In addition, it is possible to introduce a disaster prevention system by adding an additional IoT function to the existing street light facility, and there are functional advantages such as communication in connection with other buildings. In addition, in terms of replacement cost and construction cost, the construction cost may be superficially higher, but in terms of actual power energy saving and social cost, it has a much more economical effect.

According to the present invention, it can be confirmed that the smart street light is more efficient than the conventional street light in five aspects. The first is economics. The LED lamp is economical compared to the conventional incandescent lamp, and the present invention is economical because it can utilize the existing infrastructure, and also has the effect of reducing the labor cost required in case of a disaster. The second is versatility. Intuitively expressed, easy and safe evacuation of the vulnerable is possible. More specifically, the versatility is high by enabling intuitive evacuation even for those who cannot use communication facilities or for foreigners. In addition, the electric signboard can be used for advertisements or campaign promotions in general, in addition to disaster situations, so that it is possible to provide a streetlight with higher versatility than before. The third is aesthetics. If the design is unified, it is possible to produce a clean and Korean image, and it is possible to produce a production that takes advantage of the local characteristics through the electric signboard. The fourth is the ease of response and recovery. It is possible to grasp the evacuation status in real time through the linkage system, and it is possible to respond and recover by setting priorities. In more detail, it can be processed to perform the restoration in the order of the facilities adjacent to the street lamp marked with a red light. Fifth is the aspect of relieving anxiety. Even in an unfamiliar place, it is possible to check the stability of the facility by looking at the color of the lamp only. In addition, in case of a disaster, the shortest distance to a safe place is displayed through the electronic signboard, so it is possible to move to a safe facility location without a separate search. In addition, there may be an effect of preventing poor construction of the building itself.

In addition to the uncertainty of future prediction, it is very difficult to reasonably predict the benefits of disaster-related investment projects as they are related to the lives of residents. In particular, facilities with the characteristics of a public good, such as street lamps, must be installed in consideration of social costs. Therefore, one should not make the mistake of easily judging economic feasibility based on the immediate installation cost alone.

The above embodiments are presented to help the understanding of the present invention, and do not limit the scope of the present invention, and it should be understood that various modified embodiments therefrom also fall within the scope of the present invention. The drawings provided in the present invention merely show an optimal embodiment of the present invention. The technical protection scope of the present invention should be determined by the technical idea of the claims, and the technical protection scope of the present invention is not limited to the literal description of the claims itself, but is substantially equivalent to the technical value. It should be understood that it extends to the invention of

1: smart street light
10: no camera
20: LED lamp
30: control unit
31: building information storage unit
32: decision part
33: signal applying unit
40: sensor
50: electric sign

Claims (7)

In a street light comprising an LED lamp,
a camera member coupled to the street light and recording a surrounding situation of the street light;
LED lamp in which any one of a plurality of colors is displayed; and
A smart street light comprising a; a control unit for controlling the color derived from the LED lamp.
According to claim 1,
the street light
A smart street light further comprising; a sensor for recognizing whether a disaster or disaster has occurred.
3. The method of claim 2,
The control unit is
a building information storage unit for storing information on surrounding buildings and safety ratings of buildings disposed within a predetermined distance from the location where the streetlight is installed;
a determining unit configured to determine a color displayed on the LED lamp according to information on a building disposed within a predetermined distance from the street lamp when it is recognized that a disaster has occurred through the sensor; and
A smart street lamp comprising a; a signal applying unit for applying a signal to the LED lamp to display the color determined by the determining unit.
4. The method of claim 3,
When a disaster or occurrence of a disaster is recognized through the sensor
The control unit is a smart street light that controls the LED lamp to display any one color of red, yellow, and green.
5. The method of claim 4,
The street lamp further includes a billboard;
When the color displayed on the LED lamp of the street lamp is not green,
The electric billboard is a smart street lamp, characterized in that the LED lamp displays the shortest route to another adjacent street lamp marked in green.
5. The method of claim 4,
The street lamp further includes a billboard;
When the color displayed on the LED lamp of the street lamp is green,
The electric billboard is a smart street lamp, characterized in that it displays the entrance direction of the building adjacent to the street lamp.
7. The method of claim 6,
When the color displayed on the LED lamp of the street lamp is green,
The electric billboard is a smart street light, characterized in that it displays in real time the number of people currently evacuated and the number of people that can be accommodated.

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