WO2019132250A1

WO2019132250A1 - Visible light mimo system using solar panel

Info

Publication number: WO2019132250A1
Application number: PCT/KR2018/014163
Authority: WO
Inventors: 차재상
Original assignee: 서울과학기술대학교 산학협력단
Priority date: 2017-12-29
Filing date: 2018-11-19
Publication date: 2019-07-04
Also published as: KR20190081370A; KR102023254B1

Abstract

The present invention relates to a visible light MIMO system using solar panels, the visible light MIMO system comprising: a first solar receiver unit comprising at least two solar panels installed on an external wall of a building and arranged in a matrix form so as to receive visible light signals in parallel and generate electrical signals corresponding thereto, each of the visible light signals containing at least one piece of information associated with the building or surrounding buildings; a first control module installed on an external wall of the building so as to combine, into a reception signal, the electrical signals generated from the visible light signals received by the respective solar panels of the first solar receiver unit, check the at least one piece of information associated with the building or the surrounding buildings, and then generate a first output control signal corresponding thereto; an information output module for outputting, as a visible light signal, an image, or a sound, the at least one piece of information associated with the building or the surrounding buildings by receiving the first output control signal from the first control module; a second solar receiver unit comprising at least two solar panels installed on at least one street lamp adjacent to the building and arranged in a matrix form so as to receive at least one visible light signal in parallel and generate electrical signals corresponding thereto, the at least one visible light signal being associated with the building and output by the information output module; and a second control module installed on a street lamp so as to combine, into a reception signal, the electrical signals generated from the visible light signals received by the respective solar panels of the second solar receiver unit, check at least one piece of information associated with the building or surrounding buildings, and then generate a second output control signal corresponding thereto. Therefore, the visible light MIMO system using solar panels according to the present invention includes solar panels installed in a matrix form, so that data are input by receiving visible light data in parallel through the respective cells of the solar panels and thus the data transfer rate can be improved.

Description

Visible light MIMO system using solar panel

The present invention relates to a visible light MIMO system using a solar panel, and more particularly, to a system and method for transmitting and receiving visible light through a solar panel installed on an outer wall of a building or a building near a building, And more particularly, to a visible light system capable of multi-input / output (MIMO) capable of easily grasping a situation.

According to the urban development plan, an office density zone is formed around a specific area, and a plurality of buildings are densely located in the office density zone. In this way, when a plurality of buildings in a dense office area are located in close proximity to each other, it is possible to share various information shared between the building and the building or between the building and the streetlight, thereby reducing waste of energy in the building, can do.

As a result, smart buildings that incorporate IT technology in buildings are attracting attention in the newly formed office-dense areas rather than the existing office-dense areas.

This smart building is a high-tech, high-tech building that integrates office automation to improve the functions and office efficiency of the buildings, automation of lighting and power system, automatic fire detection device, security expense, .

However, even though Smart Building has these advantages, it is difficult to build a smart building easily because it costs much more than other general building construction costs in terms of design cost and construction cost.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a photovoltaic device for transmitting and receiving visible light to an outside wall of a building and a streetlight around a building, The present invention provides a visible light communication system capable of easily grasping the current situation by transmitting /

It is another object of the present invention to provide a solar panel in the form of a matrix on the exterior wall of a building and a street lamp around the building to provide a visible light Communication system.

A visible light MIMO system using a solar panel according to an exemplary embodiment of the present invention includes a plurality of visible light signals received in parallel on a building exterior wall and including at least one information related to the building or a neighboring building, A first solar light receiving unit including at least two solar panels arranged in a matrix form to generate an electric signal, a first solar light receiving unit provided on an outer wall of the building, and each solar panel of the first solar light receiving unit A first control module for combining the electrical signals into a received signal and for identifying at least one information relating to the building or surrounding building and generating a corresponding first output control signal, Receiving at least one piece of information associated with the building or surrounding building with a visible light signal, An information output module for receiving at least one visible light signal associated with the building output from the information output module, the at least one streetlight being installed adjacent to the building, A second solar light receiving unit including at least two solar panels arranged in a matrix form to receive the electric signals generated by the respective solar panels of the second solar light receiving unit And a second control module for generating a second output control signal corresponding to at least one information related to the building or a neighboring building.

The information output module can transmit the visible light signal in parallel.

The communication module may further include a communication module installed on the outer wall of the building or the streetlight to perform wireless communication with a central server or an external user terminal to transmit and receive at least one information related to the building or a neighboring building.

The communication module transmits and receives video information indicating the inside of the building or the parking status around the building or the fire information indicating a fire situation occurring in the vicinity of the building and transmits the fire information to the first control module or the second control module .

The second control module may control the blinking of the LEDs of the streetlight through the second output control signal to transmit the visible light signals in parallel.

At least one piece of information related to the building or surrounding building may include at least one of image information indicating an inside and outside view of the building, fire and earthquake occurrence notification information, and parking information.

Wherein the information output module outputs at least one of at least one visible light signal and an image image in response to the first output control signal received from the first control module, The display module may include a display module.

The display module outputs at least one information related to the building or a neighboring building as an image toward the inside of the building and includes at least one information related to the building or a neighboring building in a visible light signal for outputting the image Outputting at least one piece of information related to the first display module and the building or surrounding buildings to the outside of the building and outputting at least one piece of information related to the building or surrounding buildings to the visible light signal for outputting the image And a second display module including the first display module and the second display module.

The display module may output at least one information related to the building as a virtual reality image or an augmented reality image.

And a speaker module that is stacked on the first solar light receiving unit and outputs at least one audio information in response to the first output control signal received from the first control module.

As described above, the visible light MIMO system using the solar panel according to the present invention is a system in which a solar panel installed on an outer wall of a building or a street lamp receives visible light including at least one information related to a specific building, The user can easily check the current building situation by outputting the information of the current building through the display module. This makes it possible to more efficiently perform building control such as building power, cooling and heating, and various sensors based on building-related information.

In a visible light MIMO system using a solar panel, solar panels are installed in a matrix form, and the visible light data can be received in parallel through each cell, and the data can be received to improve data transmission speed.

1 is a schematic diagram of a visible light MIMO system for performing visible light communication according to an embodiment of the present invention.

2 is a solar light receiving unit according to an embodiment of the present invention.

3 is a schematic diagram of a visible light MIMO system according to another embodiment of the present invention.

4 is a cross-sectional view of an apparatus for performing visible light communication according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art, however, that these examples are provided to further illustrate the present invention, and the scope of the present invention is not limited thereto.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: It is to be noted that components are denoted by the same reference numerals even though they are shown in different drawings, and components of different drawings can be cited when necessary in describing the drawings. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the following detailed description of the principles of operation of the preferred embodiments of the present invention, it is to be understood that the present invention is not limited to the details of the known functions and configurations, and other matters may be unnecessarily obscured, A detailed description thereof will be omitted.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

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

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

The present invention relates to a display device that transmits and receives at least one piece of information related to a building using visible light communication and displays at least one piece of information related to the building to a user located inside or outside the building, .

Hereinafter, the visible light MIMO system of the present invention will be described in detail with reference to FIGS. 1 and 2. FIG.

A visible light MIMO system according to an embodiment of the present invention shown in FIG. 1 is installed on an outer wall of a building 100 from a visible light transmission device existing outside the periphery of a building 100 such as an LED lighting device or a streetlight 10, At least one piece of information related to the other building 100 in the vicinity or at least one piece of information related to a surrounding situation of the other building 100, And outputs an image image or an announcement broadcast to the inside or outside of the building 100 so that the user can confirm the confirmed information by checking at least one information included in the visible light received through the receiving unit 110. [ Accordingly, the user can confirm at least one information related to the building 100 or the neighboring building to which the user belongs, through the image or sound, so that the current state, safety state, The parking situation and the like can be easily grasped.

More specifically, the visible light MIMO system according to an embodiment of the present invention includes a first solar light receiving unit 110, a first control module 120, a second solar light receiving unit, 2 control module.

The first sunlight receiving unit 110 is installed on an outer wall of the building 100 and receives at least one visible light signal related to the building 100 or a neighboring building and generates a corresponding electric signal. At least one piece of information related to the building 100 or the surrounding buildings may include image information indicating the inside and outside views of the specific building 100, , Fire information indicating a fire situation occurring in the inside and outside of the building 100, earthquake occurrence notification information sensed through an earthquake detection sensor provided inside the building 100, and parking information indicating parking allowance conditions of the parking lot in the building 100 Can represent at least one.

In particular, visible light communication for transmitting information to outside through transmission and reception of visible light after information to be transmitted to visible light is included in the visible light. The visible light of 400 to 700 nm emitted from the LED is transmitted at a speed It is a communication technology that blinks quickly and transmits necessary information. At this time, if the visible light emitted from the LED is blocked, the information being transmitted is not leaked to the outside, so that it has higher security than the wireless LAN.

In addition, the visible light MIMO system according to an embodiment of the present invention is capable of multi-input multi-output. The MIMO system is widely used in the field of communication today, and enables high-speed data exchange through multiple inputs and outputs.

The first solar-light receiving unit 110 may include at least two solar panels 112 arranged in a matrix form. As shown in FIG. 2, the first solar-light receiving unit 110 is shown in a form in which the solar panels 112 are arranged in the form of MXN, but this is only one example Or may be arranged in a diagonal direction or in the form of an outer wall of the building 100. [

The first sunlight receiving unit 110 receives the visible light signals including at least one information related to the building 100 or surrounding buildings in parallel, Each solar panel 112 generates an electric signal corresponding thereto and transmits it to the first control module 120. [

The first control module 120 receives electric signals generated from the first solar light receiving unit 110 on the rear surface of the first solar light receiving unit 110 or on the side surface thereof , Combines the received signal into a single received signal, and generates a first output control signal corresponding to the at least one information associated with the building (100) or a neighboring building from the received signal.

The first control module 120 transmits the first output control signal to the information output module installed inside and outside the building 100.

The information output module may output at least one visible light signal, an image image, or a voice associated with the building 100 or a neighboring building based on the information included in the first output control signal, Can be transmitted to users inside and outside the building 100. Preferably, the information output module may include a transparent display module for outputting at least one visible light signal and an image, or a speaker module for outputting audio information.

The visible light signal received by the first solar-light receiving unit 110 may be transmitted from an illumination lamp such as at least one streetlight 10 installed adjacent to the building 100.

The streetlight 10 can transmit a visible light signal in parallel to the first solar-light receiving unit 110. In order to achieve this, the streetlight 10 may have at least two light output units, and at least two visible light signals output from the light output units may be received by at least two or more of the first sunlight receiving units 110 It is possible to adjust the optical path so that the visible light signals are input at the disassociable intervals when input to the solar panel 112 or adjust the output timing of the visible light signals.

Meanwhile, the transmission of the visible light signal may be performed by controlling the output of the visible light signal by a second control module (not shown) provided in the streetlight 10. The second control module will be described in more detail below.

The streetlight 10 may include a second sunlight receiving unit installed in the streetlight 10 and capable of receiving a visible light signal of neighboring buildings or a visible light signal of the surrounding streetlight 10 in parallel .

The second solar light receiving unit 12 may be configured such that at least two solar panels 112 are arranged in a matrix form. Although the second solar light receiving unit 12 shown in FIG. 2 is shown as being arranged in the form of MXN, the solar panels are not limited to one example, Or may be arranged in the diagonal direction or along the shape of the street lamp 10. [

Accordingly, the second solar-light receiving unit 12 is configured such that each solar panel receives a visible light signal including at least one information related to the building 100 or a neighboring building in parallel, The optical panel generates an electrical signal corresponding thereto and transmits it to the second control module.

The second control module is disposed on the rear surface of the first solar light receiving unit (110) or on the side surface thereof, receives the electric signal generated from the second solar light receiving unit (12) And to modulate the second output control signal so that the streetlight 10 transmits in parallel to the neighboring building or other nearby street lamps 10. Preferably, the LEDs of the streetlight 10 are controlled to blink according to the second output control signal, so that the visible light signals can be transmitted in parallel.

Meanwhile, the second output control module may combine the electric signals generated from the second sunlight receiving unit 12 into one received signal, and transmit the received signal to a communication unit (not shown) provided in the streetlight 10 The central server 20 can receive the received signal and analyze or transmit the received information again.

On the other hand, the first solar-light receiving unit can be installed not only on the outer wall of the building, but also on the windshield of the building. In particular, the first sunlight receiving unit may be installed in a window of a building together with a display module or a speaker module.

FIG. 3 is a schematic diagram of a visible light MIMO system according to another embodiment of the present invention, and FIG. 4 is a cross-sectional view of an apparatus for performing visible light communication according to another embodiment of the present invention.

3 and 4, a visible light MIMO system according to another embodiment of the present invention includes a visible light transmission device that is located outside a building 200, such as a lighting device or a streetlight 20, A first solar light receiving unit (210) installed to receive visible light including at least one information related to the building (200) and at least one information related to a neighboring building, and the first solar light receiving unit Through a transparent display module or a speaker module which is stacked with the first solar light receiver according to an output control signal of the first control module 120 And outputs image images or announcement broadcasts to the inside and outside of the building 200 so that the user can confirm the confirmed information. Accordingly, the user can confirm at least one information related to the building 200 or the neighboring building to which the user belongs, through the image or sound, so that the current state, safety state, The parking situation and the like can be easily grasped.

3, the visible light MIMO system according to an embodiment of the present invention includes a first solar light receiving unit 210, a first control module 220, a second solar light receiving unit 22 And a second control module.

The first sunlight receiving unit 210 is installed in a window of a building 200 and receives at least one visible light signal related to the building 200 or a neighboring building and generates a corresponding electric signal. At least one piece of information related to the building 200 or surrounding buildings may include image information indicating the inside and the outside of the specific building 200 and information on the building 200 , Fire information indicating a fire situation occurring in the inside and outside of the building 200, earthquake occurrence notification information detected through an earthquake detection sensor provided in the building 200, and parking information indicating a parking allowance situation of the parking lot in the building 200 Can represent at least one.

As described above, the first solar-light receiving unit 210 may be formed of at least two solar panels 212 that are transparent because they are disposed in a glass window of the building 200.

In addition, the first solar-light receiving unit 210 may include at least two solar panels 212 arranged in a matrix form. The first solar-light receiving unit 210 may have a configuration in which the solar panels 212 are arranged in the form of MXN, but the present invention is not limited thereto. Or in a diagonal direction, or along the shape of a window of the building 200.

The first sunlight receiving unit 210 receives the visible light signals including at least one information related to the building 200 or surrounding buildings in parallel, Each of the solar panels 212 generates an electric signal corresponding thereto and transmits the electric signal to the first control module 220.

4, the first control module 220 is located on the side of the first solar-light receiving unit 210, and receives an electric signal generated from the first solar-light receiving unit 210 And combines them into one received signal and generates a first output control signal corresponding to the at least one information associated with the building 200 or surrounding building from the received signal.

The first control module 220 may output at least one information related to the building 200 and may transmit the information to the transparent display module or the speaker module stacked on the first control module 220, Information can be transmitted to users inside and outside the building 200. [

On the other hand, the visible light may be transmitted from an illumination lamp such as at least one street lamp 20 installed adjacent to the building 200.

The streetlight 20 can transmit a visible light signal to the first solar-light receiving unit 210 in parallel. For this purpose, the streetlight 20 may have at least two light output units, and at least two visible light signals output from the light output units may be transmitted to at least two or more of the first solar light receiving units 210 It is possible to adjust the optical path so that the visible light signals are inputted at the disassociable intervals when inputting to the solar panel 212 or adjust the output timing of the visible light signals.

Meanwhile, the transmission of the visible light signal can be controlled by the second control module installed in the streetlight 20. The second control module will be described in more detail below.

The streetlight 20 may include a second sunlight receiving unit installed in the streetlight 20 and capable of receiving a visible light signal of neighboring buildings or a visible light signal of the surrounding streetlight 20 in parallel .

The second sunlight receiving unit 22 may be configured such that at least two solar panels are arranged in a matrix form. The second solar light receiving unit 22 shown in FIG. 2 is shown as being arranged in the form of MXN, but the present invention is not limited to this example, Or may be arranged in the diagonal direction or along the shape of the street lamp 20. [

Accordingly, the second solar-light receiving unit 22 is configured such that each solar panel receives a visible light signal including at least one information related to the building 200 or a neighboring building in parallel, The optical panel generates an electrical signal corresponding thereto and transmits it to the second control module.

The second control module is disposed on the rear surface of the first solar light receiving unit (210) or on the side surface thereof, receives an electric signal generated from the second solar light receiving unit (22) And to modulate the second output control signal so that the streetlight 20 transmits in parallel to the neighboring building or other nearby street lamps 20.

Meanwhile, the second output control module may combine the electric signals generated from the second sunlight receiving unit 22 into one received signal, and transmit the received signal to a communication unit (not shown) installed in the streetlight 20 The central server 20 can receive the received signal and analyze or transmit the received information again.

The first sunlight receiving unit may be stacked with a transparent display module and disposed in a window of the building, as described above. According to the first control module, the display module is installed in a window of each building located at another dense place of the present invention, and can perform visible light communication between the building and the building.

The display module and the first solar light receiving unit 210 are formed inside the window frame 204 inserted into the window frame 202 of the exterior of the building 200 and the first control module 220 is further provided .

The first sunlight receiving unit 210 is located in the middle of the inside of the window frame 204 having a predetermined thickness and is hollow and closed at four sides, From the outside, and generates an electric signal corresponding to the visible light. At least one piece of information related to the building 200 may include image information indicative of the inside and outside of the building 200 and information on the inside and outside of the building 200 through a fire detection sensor provided inside the building 200. [ At least one of fire information indicating a fire situation occurring in the building 200, earthquake occurrence notification information sensed through an earthquake detection sensor provided inside the building 200, and parking information indicating a parking allowance situation of the parking lot in the building 200 .

The first control module 220 is located on the side of the first solar light receiving unit 210 which is the inside direction of the window frame 204 and is electrically connected to the electricity generated in parallel from the first solar light receiving unit 210 A first output control signal generating unit for generating a first output control signal after combining at least one information related to the building 200 included in the received signal by combining the received electric signals into one reception signal, Control signals and at least one information related to the building 200 to the display module.

The display module outputs at least one information related to the building 200 received from the first control module 220 in response to the first output control signal received from the first control module 220. At this time, And output at least one information related to the building 200 as a virtual reality image or an augmented reality image. Such a display module may consist of a transparent display element, or may comprise a plurality of LEDs and an LED driving driver. In particular, the display module may include a plurality of display modules, that is, a first display module 230 and a second display module 240, as shown in FIG.

The first display module 230 is stacked on the surface of the first sunlight receiving unit 210 facing the exterior of the building 200. The first display module 230 directly outputs at least one information related to the building 200 received from the first control module 220 through the blinking of the transparent display device or LED provided therein , The information to be transmitted to the second sunlight receiving unit 22 of the streetlight 20 installed in the vicinity of the building 200 or the solar light receiving unit located in the window of the other building 200 in the vicinity of the visible light, And outputs the visible light to the outside of the building 200. Such visible light communication refers to a communication technology for rapidly transmitting visible light of 400 to 700 nm emitted from an LED at an invisible speed to human eyes to transmit necessary information. At this time, if the visible light emitted from the LED is blocked, the information being transmitted is not leaked to the outside, so that it has higher security than the wireless LAN.

In addition, the first display module 230 can transmit visible light signals to the second sunlight receiving unit 22 in parallel. For this purpose, it may be achieved by blinking at least two or more transparent display elements or LEDs in the interior, and when an output visible light signal is input to at least two solar panels of the second solar light receiving unit 22, The optical path can be adjusted so that the signals are input at mutually resolvable intervals, or the output timing of the visible light signal can be adjusted.

The second display module 240 is located inside the window frame 204 and is different from the first display module 230 in that the first sunlight receiving unit 210 is located inside the building 200 As shown in Fig. The second display module 240 outputs the information related to the building 200 included in the visible light received from the outside so that the people in the building 200 can visually confirm the second display module 240, It is possible to easily grasp the internal and external situations of the building 200 or the neighboring building 200 to which the current building 200 belongs.

In addition, the windshield of the building 200 including the first sunlight receiving unit 210 may further include the communication module 250 in addition to the above-described components.

4, the communication module 250 is located on the side of the first solar light receiving unit 210 in opposition to the first control module 220, And may be located adjacent to the control module 220. The communication module 250 performs short-range wireless communication with a user terminal located inside or outside the building 200. The communication module 250 receives image information indicating the inside and outside of the building 200 from the user terminal or receives fire information indicating a fire situation occurring in the vicinity of the specific building 200, (220).

As described above, the window of the building 200 performing the visible light MIMO system according to another embodiment of the present invention described above with reference to FIG. 4 receives visible light output from the outside in parallel, Directional visible light communication in which at least one information related to the specific building 200 is not only recognized but also at least one information related to the specific building 200 is included in visible light and can be transmitted to the outside.

In addition, the system for performing the visible light MIMO system according to another embodiment of the present invention may further include a storage module. The storage module stores in advance the reference values of the image information and the parking information from at least one piece of information related to the building 200 that the first display module 230 wants to transmit to the outside, The first control module 220 may transmit the reference value of the image information and the parking information being stored.

As shown in FIGS. 1 and 3, there are at least one street light installed in a building and around a building, and the building includes a first sunlight receiving unit for performing visible light communication according to the visible light MIMO system of the present invention, 1 control module, and the streetlight is provided with a second solar light receiving unit and a second control module, respectively. Hereinafter, a process of transmitting information related to the building using visible light communication to a streetlight in a building will be described with reference to another embodiment of FIG.

The first display module 230 provided in the building 200 serves as a transmitter for transmitting information related to the building 200 and the second sunlight receiving unit 22 provided in the streetlight 20 can receive And a receiver for receiving information related to the building 200 transmitted from the first display module 230.

The first control module 220 installed in the building 200 generates at least one information related to the building 200 to be transmitted to the streetlight 20. At least one piece of information related to the building 200 may include image information indicating an inside or an outside view of the building 200 and information on a building 200 detected through a fire occurrence detection sensor provided inside the building 200. [ At least one of fire information indicating a fire situation occurring inside the building 200, earthquake occurrence notification information sensed through an earthquake detection sensor provided inside the building 200, and parking information indicating a parking situation of an outside alley of the building 200 Lt; / RTI >

In addition, the first control module 220 performs short-range wireless communication with a user terminal located outside through the communication module 250 to receive image information to be displayed on the first or second display module from the user terminal Or fire information indicating a fire situation occurring near the periphery of the building 200 from the user terminal.

Alternatively, the first solar-light receiving unit 210 directly receives, from the streetlight 20, fire information indicating a fire situation occurring in the vicinity of the building 200, as a visible light signal, .

The first control module 220 may transmit information related to the building 200 to be transmitted to the users inside or outside the building 200 or the other street lamps 20 through the first display module 230 or the second display 230. [ Module 240, as shown in FIG.

In this case, when the first control module 220 receives the signal including the information about the fire occurrence in the information related to the building 200, the first control module 220 generates the fire information and the earthquake occurrence notification information, And transmits the first output control signal to the first display module 230 or the second display module 240. At the same time, the external parking information of the building 200 is transmitted to the first display module 230 or the second display module 240, The parking information is transmitted to analyze the path of easy access to the fire site by evacuation of users in the vicinity of the building 200 or in case of fire suppression, An output control signal can be transmitted.

In response to the first output control signal, the first display module 230 directly outputs at least one information related to the building 200 received from the first control module 220, The display 200 may include at least one information related to the building 200 and then may blink the visible light of the LED provided therein so that information related to the building 200 may be displayed in parallel to the streetlight 20 or another building 200 ).

Accordingly, the streetlight 20 or the other building 200 can receive the fire information, the earthquake information, and the parking situation of the alley around the building 200, which are transmitted from the building 200, for example Therefore, it is possible to take quick action in the case of fire suppression or disaster.

As described above, the visible light MIMO system for performing visible light communication according to the present invention is characterized in that a solar panel installed on an outer wall of a building or a street lamp receives visible light including at least one information related to a specific building, The user can easily check the current building situation by outputting the information of the current building through the display module. This makes it possible to more efficiently perform building control such as building power, cooling and heating, and various sensors based on building-related information.

In addition, the visible light communication system for performing visible light communication according to the present invention is installed in a matrix form, and can receive visible light data in parallel through each cell, receive data, and improve data transmission speed.

In addition, the display device for performing visible light communication according to the present invention includes a first sunlight receiving unit according to the present invention to improve the transmission speed of data between buildings, However, since the power can be produced through visible light, the cost for communication and the cost for power generation can be greatly reduced.

It will be apparent to those skilled in the relevant art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. The appended claims are to be considered as falling within the scope of the following claims.

Claims

At least two solar panels installed in the exterior of the building and arranged in a matrix to receive visible light signals including at least one information related to the building or surrounding buildings in parallel and generate corresponding electrical signals, A first sunlight receiving unit comprising:

A plurality of solar panels installed on an outer wall of the building to combine the electric signals received and generated by the respective solar panels of the first solar light receiving unit into a received signal and confirm at least one information related to the building or a neighboring building, A first control module for generating one output control signal;

An information output module receiving the first output control signal from the first control module and outputting at least one information related to the building or a neighboring building as a visible light signal, an image image, or a voice;

At least one streetlight installed adjacent to the building and receiving at least one visible light signal related to the building outputted from the information output module in parallel and arranged in a matrix form to generate a corresponding electric signal, A second solar light receiving unit including two or more solar panels; And

And an electric signal generated by each of the solar panels of the second sunlight receiving unit is added to the received signal to confirm at least one information related to the building or a neighboring building, And a second control module for generating a second output control signal.
The method according to claim 1,

Wherein the information output module transmits the visible light signals in parallel.
The method according to claim 1,

Further comprising: a communication module installed on the exterior wall of the building or the streetlight for transmitting and receiving at least one information related to the building or a neighboring building by performing wireless communication with a central server or an external user terminal,

The communication module includes:

And transmits to the first control module or the second control module transmission / reception of image information indicating the inside of the building or the parking status around the building or fire information indicating a fire situation occurring in the vicinity of the building. Visible light MIMO system using solar panel.
The method according to claim 1,

Wherein the second control module controls the blinking of an LED or the like of the streetlight through the second output control signal so as to transmit the visible light signal in parallel.
The method according to claim 1,

At least one piece of information associated with the building or surrounding building,

Wherein the information includes at least one of image information indicating inside and outside of the building, fire and earthquake occurrence notification information, and parking information.