KR20190063728A - System and method of wireless charging electric vehicle using beacon - Google Patents

Abstract

The present invention relates to a technique of wireless-charging a battery of an electric vehicle, and specifically, to a technical idea of confirming a residual battery amount of the electric vehicle by using transportation facilities and wireless-charging the electric vehicle when necessary. An objective of the present invention is to construct a system which can perform a wireless-charging process in real time by mounting a wireless power transmission device along with a wire plug. A wireless power charging system according to an embodiment of the present invention includes: an information collecting unit which collects information on a residual battery amount of a vehicle and movement information of the vehicle by using a bacon; a first determination unit which determines whether it is necessary to supply power to the vehicle or not depending on the collected information on the residual amount; a power supply request processing unit which processes a power supply request such that a signal for power supply request is transmitted by considering the collected movement information when it is necessary to supply power as a result of the determination; a request collecting unit which receives the power supply request; a vehicle identification unit which identifies a vehicle corresponding to the power supply request; a second determination unit which determines whether it is possible to supply power to the vehicle or not based on information of at least one selected from a distance from the identified vehicle and the speed of the identified vehicle; and a charging control unit which controls the vehicle battery to wireless-charge the battery of the vehicle when it is possible to supply power to the vehicle as a result of the determination.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and a method for wirelessly charging an electric vehicle using a beacon,

TECHNICAL FIELD The present invention relates to a technology for wirelessly charging a battery of an electric vehicle, and more particularly, to a technical idea of checking the remaining amount of a battery in an electric vehicle using a traffic facility and a beacon, and wirelessly charging the battery when necessary.

Recently, green energy development and alternative fossil fuel resource research are attracting attention. Technologies and infrastructure for operating and operating on alternate sources of electricity have been developed for devices and instruments that operate on fossil fuels such as automobiles. Also, in the tourist areas like Jeju Island, car rental business utilizing electric cars is also being activated. It can be used as an alternative energy source for limited fossil fuels if it is possible to operate with alternate resources such as passenger cars and green energy such as electric vehicles and commercialization. Based catalysts.

The use of electric vehicles in tourist areas is becoming more active in line with government policies and current business trends. However, due to the lack of infrastructure for electric charging, it is difficult to find electric charging stations like existing gas stations or gas filling stations, and there is an inconvenience that electric charging stations exist only in specific areas.

As electric cars are not commercialized, except for some special areas, there is insufficient infrastructure of electric charging stations like gas stations.

Korean Patent No. 1603710 "Electric Vehicle Wireless Charging System" Korean Patent No. 1627798 "Wireless charging electric vehicle and wireless charging method"

The present invention aims at promoting commercialization of electric vehicles.

An object of the present invention is to construct a system capable of real-time wireless charging by mounting a wireless power transmission device together with a wired plug.

An object of the present invention is to compensate for the margin of an electric charging station where current infrastructures are insufficient by transmitting electric power of an electric vehicle wirelessly using traffic facilities and a beacon.

A wireless power charging system according to an exemplary embodiment includes an information collecting unit for collecting battery remaining amount information and movement information of an automobile using a beacon, a first determining unit determining whether power supply to the automobile is required according to the collected remaining amount information, A power supply request processing unit for processing the power supply request signal to transmit the power supply request signal in consideration of the collected movement information when the power supply is required as a result of the determination, a request collecting unit for receiving the power supply request, A second determination unit for determining whether or not the power supply is possible based on at least one of a distance between the identified vehicle and a speed of the vehicle, a vehicle identification unit for identifying the corresponding vehicle, And a charge controller for controlling the battery of the automobile to be charged wirelessly.

The information collecting unit may collect the remaining amount information and the movement information from an on-board diagnostic device (OBD) of the automobile according to one embodiment.

The information collecting unit according to an embodiment of the present invention is characterized in that the movement information includes a moving direction and a moving speed of the automobile, and the power supply request processing unit is configured to determine, based on the moving direction and the moving speed, And to process the power supply request signal to the determined power supply device.

The power supply request processing unit according to an exemplary embodiment may process the power supply request signal to the power supply device at the specific location through visible light communication for controlling the light emitting device of the traffic facility.

The first determination unit according to an embodiment calculates a distance by which the automobile can be moved in consideration of the moving direction and the moving speed of the automobile and determines whether the power supply is necessary in consideration of the automobile charging station located within the movable distance can do.

A method of operating a wireless power charging system according to an exemplary embodiment includes collecting battery remaining amount information and movement information of an automobile using a beacon in an information collecting unit, And a step of processing the power supply request processing unit to transmit a power supply request signal in consideration of the collected movement information when the power supply is required as a result of the determination in the power supply request processing unit, The method comprising the steps of: receiving the power supply request; identifying a vehicle corresponding to the power supply request; identifying, in a second determination unit, power Determining whether or not the power supply is available, and determining, as a result of the determination, And controlling the battery of the vehicle to be charged wirelessly.

The step of collecting the battery remaining amount information and the movement information according to an embodiment may include collecting the remaining amount information and the movement information from the onboard device (OBD) of the automobile.

The step of collecting the battery remaining amount information and the movement information according to an embodiment may include the step of: the movement information includes a moving direction and a moving speed of the automobile, and the step of processing to transmit the power supply request signal includes: Determining the power supply device located on an anticipated movement path of the automobile in consideration of the moving speed, and processing the power supply request signal to be transmitted to the determined power supply device.

The step of processing to transmit the power supply request signal according to an embodiment includes processing to transmit a power supply request signal to the power supply device at the specific location through visible light communication for controlling the light emitting device of the traffic facility .

The step of determining whether power supply to the automobile according to the embodiment is required includes calculating a distance to which the automobile can move in consideration of the moving direction and moving speed of the automobile, And determining whether power supply is necessary in consideration of the power consumption.

According to one embodiment, commercialization of an electric vehicle can be promoted.

According to one embodiment, a wireless power transmission device can be installed as a wired plug and a system capable of wireless charging in real time can be constructed.

According to one embodiment, the electric power of the electric vehicle is wirelessly transmitted by utilizing the traffic facilities and the beacon, thereby complementing the margin of the electric charging station where the current infrastructure is lacking.

1 is a diagram illustrating a wireless power charging system in accordance with one embodiment.
2 is a diagram illustrating a power monitoring apparatus and a power supply apparatus according to an embodiment.
3 is a diagram illustrating a specific embodiment in which a wireless power charging system is applied.
4 is a diagram illustrating a method of operating a wireless power charging system in accordance with one embodiment.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are presented for the purpose of describing embodiments only in accordance with the concepts of the present invention, May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. However, it is not intended to limit the embodiments according to the concepts of the present invention to the specific disclosure forms, but includes changes, equivalents, or alternatives falling within the spirit and scope of the present invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Expressions that describe the relationship between components, for example, "between" and "immediately" or "directly adjacent to" should be interpreted as well.

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 this specification, the terms "comprises ", or" having ", and the like, are used to specify one or more of the features, numbers, steps, operations, elements, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

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 are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

1 is a diagram illustrating a wireless power charging system 100 in accordance with one embodiment.

The wireless power charging system 100 according to an exemplary embodiment may provide a wireless power charging function by using existing traffic facilities (traffic signs, traffic lights, etc.) and a beacon in order to overcome an insufficient infrastructure.

That is, it is possible to provide a wireless power transmission apparatus and method using a beacon and a traffic facility for charging the electric power of an electric vehicle in order to promote the commercialization of the automobile and improve the infrastructure of the electric charging station.

The wireless power charging system 100 according to one embodiment can check the remaining battery level of the vehicle 110 at the A position in the power monitoring device 130 and detect the remaining battery level of the car 110 at the B position via the power supply 140 120 by wirelessly.

The car 110 in the A position and the car 120 in the B position use the same reference numerals to identify the same car or location.

The power monitoring device 130 may determine whether power supply to the vehicle is necessary based on the collected remaining amount information. Also, if it is determined that power supply is necessary, the power supply request signal may be transmitted to the power supply device at position B in consideration of the movement information collected together with the remaining amount information.

Accordingly, the electric power supply device 140 at the B position can identify the automobile 120 by identifying the automobiles moving in the lane. Further, when the automobile 120 is identified, it is determined whether or not the power supply is possible based on at least one of the distance and the speed with respect to the automobile, and it is possible to control the battery of the automobile to be wirelessly charged have.

For example, the power monitoring device 130 at the A position can request power supply of the vehicle through various communication methods to the power supply device 140 at the B position. As a more specific example, the power monitoring device 130 and the power supply 140 may request the power supply of the vehicle using a beacon. In addition, a power supply may be requested by utilizing a light emitting element of a traffic facility such as a signal

Currently, wireless power transmission systems are commercializing technologies such as mobile phones that can charge smart devices. Based on these technologies, it is possible to charge electricity, which is fuel of an electric vehicle, in real time by utilizing existing traffic facilities and beacons. In the present invention, a system capable of real-time wireless charging can be constructed by mounting a wireless power transmission device like a wired plug using traffic facilities and a beacon in the present invention. can do.

Limitations may arise in order to charge electric vehicles using limited transmission capacity such as beacons. However, beacons and beacons can be manufactured on the basis of price competitiveness of beacons, and existing beacons can be utilized So that the limitation of having a single beacon can be overcome by wirelessly transmitting a large amount of electric power for driving the electric vehicle. Also, by using existing traffic facilities and beacons, electric power of electric vehicles can be transmitted wirelessly, which can compensate the margin of the electric charging station which lacks the current infrastructure.

2 is a diagram illustrating a power monitoring device 200 according to one embodiment.

The present invention can be utilized as a wireless charging of an electric vehicle and can utilize the operation of a line using an beacon in an unmanned system such as a smart factory and can establish a wireless environment through a beacon capable of wireless power transmission It can provide the most basic infrastructure that can be. It can also be used in alternative energy resources-related businesses such as electric vehicles.

The power monitoring apparatus 200 may include an information collecting unit 210, a first determining unit 220, and a power supply request processing unit 230.

The information collecting unit 210 may collect battery level information and movement information of an automobile. For example, the information collecting unit 210 may collect battery level information or movement information from a vehicle through communication using a beacon.

Beacon Communications is a next-generation smartphone short-range communication technology using low-power Bluetooth (BLE). It is a smartphone short-range communication technology that enables users to find a location within a radius of 50 to 70 meters and send messages and settle a mobile.

Beacon communication has a longer usable distance than NFC, low power consumption and low battery consumption of a smart phone, and can be more precise than GPS in certain situations.

Battery level information and movement information can be collected from the vehicle's onboard diagnostic device (OBD). The on-board diagnostic device can record information necessary for driving the vehicle, for example, the moving speed of the vehicle, the moving direction, the moving distance, and the like. Also, the on-board diagnostic device can collect information from the battery control module about the current remaining capacity in relation to the total capacity of the battery.

In the present invention, embodiments of collecting battery remaining amount information and movement information of an automobile through beacon communication are explained, but various communication methods other than this communication method can be applied.

The first determination unit 220 according to an exemplary embodiment may determine whether power supply to the automobile is necessary based on the collected remaining amount information.

For example, the first determination unit 220 may determine that power supply to the vehicle is necessary when the remaining battery level is within the threshold value.

The first determining unit 220 may calculate a distance through which the automobile can be moved in consideration of the moving direction and the moving speed of the automobile and determine whether the power supply is necessary in consideration of the automobile charging station located within the movable distance .

If the vehicle charging station does not exist within the movable distance to the current remaining amount, the first determination unit 220 can determine whether power supply is necessary.

The power supply request processing unit 230 according to an exemplary embodiment may process the power supply request signal to the power supply unit at a specific position in consideration of the collected movement information when power supply is required.

The specific position can be interpreted as a position calculated based on the moving direction and the moving speed of the automobile identified from the collected moving information.

For example, when there is a branching path in the moving direction, the position of the power supply devices located closest to the power supply devices located in the expected path that can move through the corresponding branch may be the specific position.

The power supply device determines whether or not the power supply is possible based on at least one of the distance from the vehicle and the speed of the vehicle when the vehicle is identified, can do.

For this, the movement information collected by the information collecting unit 210 includes the movement direction and the movement speed of the automobile, and the power supply request processing unit 230 determines the movement direction and the movement speed of the vehicle Determine which power supply is located, and process the power supply request signal to the determined power supply.

The power supply request processing unit 230 according to an exemplary embodiment may process the power supply request signal to a power supply device at a specific location through visible light communication for controlling a light emitting device of a traffic facility.

According to one embodiment, an interleaving technique may be used to transmit data utilizing color interleaving for visible light communication.

Determining a plurality of data transfer areas formed by each of the plurality of illumination devices, and outputting feedback information on interference between a plurality of color channels each formed by the plurality of data transfer areas and having the same channel length from the user terminal device And receive preference information of data transmitted through the plurality of color channels from the user terminal.

It is possible to realize an interleaving type visible light communication by changing the length and the color pattern of each of the plurality of color channels differently based on the received feedback information and the received preference information.

Accordingly, it is an object of the present invention to reduce interchannel interference and burst errors that can occur depending on the nature of light and the overlapping of data transfer areas in an indoor environment.

The present invention aims to improve the performance of a visible light communication system by reducing interchannel interference and burst errors.

It is an object of the present invention to provide a service that satisfies a data transmission rate and a QoS (Quality of Service) required by users by adjusting the lengths of RGB (Red, Green, Blue) wavelengths and applying different interleaving lengths .

It is an object of the present invention to prevent data from being damaged due to light properties such as reflection, diffraction, superposition, and scattering by applying different interleaving lengths by adjusting the length of RGB wavelengths.

The object of the present invention is to protect the data transmitted through each color channel by decreasing the wavelength length of the color channel as the priority of data transmitted through the color channel is lowered.

Meanwhile, the power supply apparatus may include a request collecting unit 240, an automobile identification unit 250, a second determination unit 260, and a charge control unit 270.

The request collector 240 according to an exemplary embodiment may receive a power supply request from a power monitoring device installed in a traffic facility.

For example, the power monitoring apparatus may collect battery remaining amount information and movement information of the vehicle, and may determine whether power supply to the vehicle is necessary according to the collected remaining amount information. As a result of the determination, when the power supply is necessary, the power supply request signal may be transmitted to the power supply device at a specific position in consideration of the collected movement information.

The request collecting unit 240 may collect remaining amount information and movement information through visible light communication or beacon communication with the power monitoring apparatus.

The vehicle identification unit 250 according to an embodiment may identify the vehicle corresponding to the power supply request.

The vehicle identification unit 250 according to an exemplary embodiment may identify the vehicle by collecting identification information recognized from a license plate of a vehicle or an on-board diagnostic device of the vehicle.

The second determination unit 260 may determine whether the power can be supplied based on at least one of the distance and the speed with respect to the identified vehicle. For example, to supply electricity, the vehicle must be stationed at the selected location or operated at a speed below the selected speed. In order to determine this, the second determination unit 260 can determine the distance, speed, and the like to the identified vehicle.

As a result of the determination, the charge controller 270 according to the embodiment may control the battery of the vehicle to be charged wirelessly when power supply is possible.

3 is a diagram illustrating a specific embodiment in which a wireless power charging system is applied.

Wireless Electric Vehicle Charging (WEVC) is based on the Qualcomm Halo (Link) technology, which requires the driver to park on a special pad to charge the battery, Or may be installed in a traffic facility or the like.

Qualcomm HALO technology can use Resonant Magnetic Induction to wirelessly transfer electrical energy from pads on the ground to pads mounted on the vehicle.

For example, when a pad is embedded in a static line below the signal lamp 330, a charging command can be transmitted from the beacon installed in the signal lamp to the pad of the stop line. The vehicle 310 parked on the stop line wirelessly collects electric power from the pad to charge the battery.

To this end, the power supply may be mounted to the transportation facility 320.

The traffic facility 320 may collect remaining amount information and movement information through visible light communication or beacon communication with the power monitoring device, and identify the vehicle 310 corresponding to the power supply request. For example, the transportation facility 320 can identify the car 310 by collecting identification information recognized from the license plate of the car or the on-board diagnostic device of the car.

The transportation facility 320 can determine whether or not the electric power can be supplied based on at least one of the distance and the speed with respect to the identified car 310. [ For example, in order to supply electric power, the vehicle 310 must be stopped at a predetermined position or operated at a speed lower than a predetermined speed. In order to determine this, the traffic facility 320 can determine the distance or the speed with respect to the identified automobile.

As a result of the determination, the traffic facility 320 can control the battery of the vehicle to be charged wirelessly when power supply is possible. For example, charge control can be commanded through a beacon installed in the traffic light 330. [

4 is a diagram illustrating a method of operating a wireless power charging system in accordance with one embodiment.

The method of operating the wireless power charging system according to an exemplary embodiment may collect battery remaining amount information and movement information of an automobile (step 401).

The method of operating the wireless power charging system according to an exemplary embodiment may determine whether power supply to the vehicle is required according to the collected remaining amount information (step 402).

The method of operating the wireless power charging system according to an exemplary embodiment may process the power supply request signal to the power supply device at a specific position in consideration of the collected movement information when the power supply is required as a result of the determination (Step 403).

For example, in order to process the transmission of the power supply request signal, the power supply device located on the anticipated movement path of the vehicle can be determined in consideration of the direction of movement and the speed of movement. Further, it can be processed to transmit the power supply request signal to the determined power supply apparatus.

In order to process the transmission of the power supply request signal, visible light communication for controlling the light emitting element of the traffic facility may be used. That is, the light emitting device of the traffic facility may be controlled to process the power supply request signal to the power supply device at a specific location.

A method of operating a wireless power charging system in accordance with one embodiment may determine whether power is available based on at least one of a distance and a speed to the vehicle when the vehicle is identified through the power supply ).

For example, in order to determine whether power supply is necessary, the moving distance of the automobile can be calculated in consideration of the moving direction and the moving speed of the automobile. Based on this, it is possible to judge whether or not electric power supply is necessary in consideration of an automobile charging station located within a movable distance.

The method of operating the wireless power charging system according to an exemplary embodiment may control the battery of the vehicle to be charged wirelessly when power is available (step 405).

As a result, the use of the present invention can promote the commercialization of electric vehicles. In addition, a wireless power transmission device can be installed as a wired plug and a wireless real-time charging system can be built, and electric power of an electric vehicle can be wirelessly transmitted using traffic facilities and beacons, Can be compensated for.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (10)

An information collecting unit for collecting battery remaining amount information and movement information of the vehicle using a beacon;
A first determination unit determining whether power supply to the automobile is required according to the collected remaining amount information; And
A power supply request processing unit for processing the power supply request signal in consideration of the collected movement information when the power supply is required as a result of the determination;
A request collector for receiving the power supply request;
A vehicle identification unit for identifying a vehicle corresponding to the power supply request;
A second determination unit for determining whether or not the power supply is possible based on at least one of the distance and the speed with respect to the identified vehicle; And
As a result of the determination, if the battery is charged,
The wireless power charging system. The method according to claim 1,
The information collecting unit,
And collects the remaining amount information and the movement information from an on-board diagnostic device (OBD) of the automobile. The method according to claim 1,
The information collecting unit,
Wherein the movement information includes a moving direction and a moving speed of the automobile,
The power supply request processing unit,
Determine the power supply device located on the anticipated movement path of the automobile in consideration of the movement direction and the movement speed, and to transmit the power supply request signal to the determined power supply device. The method according to claim 1,
The power supply request processing unit,
And transmits the power supply request signal to the power supply device at the specific location through visible light communication controlling the light emitting element of the traffic facility. The method according to claim 1,
The first determination unit may determine,
Calculating a movable distance of the automobile in consideration of a moving direction and a moving speed of the automobile and determining whether power supply is necessary considering an automobile charging station located within the movable distance. Collecting battery remaining amount information and movement information of an automobile using a beacon in an information collecting unit;
Determining whether power supply to the automobile is necessary according to the collected remaining amount information; And
Processing the power supply request processing unit to transmit the power supply request signal in consideration of the collected movement information when the power supply is required as a result of the determination;
Receiving, at the request collection unit, the power supply request;
Identifying an automobile corresponding to the power supply request;
Determining whether power supply is possible based on at least one of a distance and a speed between the vehicle and the identified vehicle; And
Controlling charging of the battery of the automobile when charging is possible as a result of the determination
Lt; RTI ID = 0.0 > 1, < / RTI > The method according to claim 6,
The step of collecting the battery remaining amount information and the movement information includes:
Collecting the remaining amount information and the movement information from an onboard diagnostic device (OBD) of the automobile
Lt; RTI ID = 0.0 > 1, < / RTI > The method according to claim 6,
The step of collecting the battery remaining amount information and the movement information includes:
Wherein the movement information includes a moving direction and a moving speed of the automobile,
Wherein the processing to transmit the power supply request signal comprises:
Determining the power supply device located on an anticipated movement path of the automobile in consideration of the moving direction and the moving speed; And
And transmitting the power supply request signal to the determined power supply device
Lt; RTI ID = 0.0 > 1, < / RTI > The method according to claim 6,
Wherein the processing to transmit the power supply request signal comprises:
Processing to transmit a power supply request signal to the power supply device at the specific location through visible light communication for controlling the luminous means of the traffic facility
Lt; RTI ID = 0.0 > 1, < / RTI > The method according to claim 6,
Wherein the step of determining whether power supply to the vehicle is necessary includes:
Calculating a moving distance of the automobile in consideration of a moving direction and a moving speed of the automobile; And
Determining whether power supply is necessary in consideration of an automobile charging station located within the movable distance
Lt; RTI ID = 0.0 > 1, < / RTI >

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