KR20190048910A - Meters identification method for charging of electric vehicle - Google Patents

Abstract

The present invention relates to a watt hour meter identifying method for charging and billing an electric vehicle in order to accurately and safely identify the watt hour meter of a consumer supplying a charging power when charging an electric vehicle by using a mobile charger. The present invention includes: a step in which an RFID reader installed in the mobile charger obtains a socket ID given to the power socket from an RFID tag attached to the power socket; a step in which a child meter installed in the mobile charger receives the obtained socket ID from the RFID reader; a step in which the child meter provides the socket ID for a plurality of mother meters existing around the power socket, and requests whether to support the power socket based on the provided socket ID; and a step in which the child meter receives the mother meter ID from the mother meter supporting the power socket among the plurality of mother meters.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for identifying a watt-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a watt-hour meter identification method for charging an electric vehicle, and more particularly, to an electric wattmetric identification method for charging an electric automobile using a mobile charger To a watt-hour meter identification method.

As the spread of electric vehicles (EVs) spreads around the world, the need to build charging infrastructure is increasing. The charging infrastructure consists of charger, operating system, electrical equipment, communication equipment, and supplementary services, and refers to the type of facilities, equipment, and software that chargers take in the process of supplying electric power to electric vehicles.

The charging method is a fast charge that is supplied by supplying AC power of 220V and a rapid charge which is supplied by supplying a high-voltage direct current. In the case of the slow charging method, a portable type charger installed in a private parking space is used, or a portable type charger which is connected to a general power outlet is used.

In case of fixed type charger, it is necessary to secure a private parking space for charger installation. However, it is not used in domestic housing condition where the proportion of apartment houses is higher than single house. On the other hand, the portable charger has been recently popularized because it has an advantage that it can be connected to a power outlet provided in a public parking lot at any time while carrying it in a vehicle.

However, in order to build an electric vehicle charging infrastructure using such a mobile charger, the progressive tax and electric power problems must be solved. That is, when the charger owner charges the electric car by connecting the charger to any power outlet, the corresponding charging power is subtracted from the total used electric power of the powered consumer, and the corresponding charging electric power must be separately charged to the vehicle or charger owner do. For this sort of billing, it is necessary to know from which customer the electric power for electric car charging is supplied.

Patent No. 10-1448612 discloses a billing system for charging an electric vehicle, and discloses a method for identifying an electricity supply portion of a customer. Specifically, a method of attaching a barcode or an RFID tag to a power outlet, reading the data using a reader included in the mobile charger, and matching the charging location with a pre-stored list of all power supply units is used.

However, in such a conventional method, there is a possibility that the attached RFID tag is removed and is intentionally replaced with another RFID tag of a customer. In this case, there is a problem that the corresponding charging power is not subtracted from the used power of the actually supplied power .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for identifying a watt-hour meter of a mobile charger for charging an electric vehicle, which can more accurately and safely identify a watt- .

According to another aspect of the present invention, there is provided a method of identifying a mother device of a mobile charger for charging an electric vehicle, the RFID reader installed in the mobile charger extracts an outlet ID ; Receiving a socket ID from the RFID interrogator installed in the mobile charger; Providing the outlet ID to a plurality of mother devices existing in the vicinity of the power outlet, and requesting confirmation of whether or not the outlet is supported based on the provided outlet ID; And receiving the mother gauge ID from the mother gauge that supports the power outlet among the plurality of mother gauges.

According to the present invention, the watt-hour meter for storing the outlet ID list and storing the ID is provided with its own ID as a mobile type charger, so that it is possible to erroneously operate the wrong outlet ID There is an effect that the billing can be prevented.

1 is a conceptual diagram showing an electric vehicle charging and billing system according to an embodiment of the present invention.
2 is a view showing a detailed configuration of a mobile charger and a mother device for identifying a mother device according to an embodiment of the present invention.
3 is a flowchart illustrating a method of identifying a mother device for charging and charging an electric vehicle according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It is not intended to be exhaustive or to limit the invention to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.

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. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "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 that there are features, numbers, steps, operations, elements, parts or combinations thereof described herein, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, 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. &Quot; and / or " include each and every combination of one or more of the items mentioned.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings attached hereto.

1 is a conceptual diagram showing an electric vehicle charging and billing system according to an embodiment of the present invention.

Referring to FIG. 1, an electric vehicle charging and billing system includes a mother device 100, a data concentrator 150, a mobile charger 200, a remote meter reading server 300, and a charging server server 400 .

The meter 100 is an electronic watt-hour meter, which measures the amount of power consumed by the customer and accumulates the measured amount of used power. The power consumption of the customer can be divided into charging power supplied for charging the electric vehicle through the receptacle 110a, 110b or 110c in the customer and pure usage power used in the customer except for the charging power.

Also, the mother device 100 has its own unique ID, through which the mother devices installed for each customer can be identified. For example, the unique ID may be configured to include a manufacturer of the mother device, a product number, a gauge integer value, and the like.

The data concentrator 150 reads out the meter meter reading data including the power consumption amount of the customer (hereinafter referred to as the 'mother meter power amount') by measuring the mother meter 100 according to the set cycle using the remote meter reading network N1 Can be collected. The meter meter reading data collected from the mother meter 100 may be stored in a memory (not shown) provided in the data concentrator 150 itself.

The portable charger 200 is a device for charging an electric vehicle battery using charging power supplied from a customer and may be constituted by a plug 210, a connector 220, a cable 230 and a control box 240 .

The plug 210 is inserted into a receptacle 110, 120 or 130 of the consumer and the connector 220 can be inserted into a socket (not shown) of an electric vehicle, And is thus provided as an electric vehicle, through which the electric vehicle battery can be charged.

The control box 240 includes a controller 260 for controlling the overall operation of the mobile charger 200 and a communication interface 260 for communication with the external device, 270), and the like.

The magnetic meter 250 may be connected to the remote meter reading server 300 to receive and / or receive commands and / or data.

In accordance with an embodiment, the magazines 250 may be connected to the remote meter reading server 300 via the remote meter reading network N1. The remote meter reading network N1 may be defined as a communication network established between a customer and a power company for remote meter reading of the mother meter 100 and may be a power line communication (PLC), a ZigBee, a wireless smart utility network (WiSUN) And the like.

In accordance with an embodiment, the magazines 250 can be connected to the remote metering server 300 via a public and / or private network N2. The public and / or private network N2 is a separate communication network that allows the meter 250 and the remote meter reading server 300 to be connected without using the remote meter reading network N2. The public and / or private network N2 includes a LoRa (long range) (Low Power Wide Area) such as Ingennu, NB-IOT, etc. However, the present invention is not limited thereto.

The magnetic field generator 250 can acquire the unique ID of the mother device 100 connected to the outlet for supplying the charging electric power to the electric vehicle. A detailed description thereof will be given later with reference to Fig.

The self-timer 250 has its own unique ID as in the case of the parent device 100, measures the amount of electric power supplied to the electric vehicle through the portable charger 200, and accumulates and stores the measured electric power consumption.

The remote meter reading server 300 is a server operated by a power company and can receive the meter reading data by reading the mother meter 100 of the customer and / or the magazine 250 of the mobile charger 200.

The remote meter reading server 300 can receive the self meter reading data by reading the self meter 250 in the mobile charger 200. [

According to the embodiment, the self-meter reading data may include the self-device power amount, the self-device ID, and the mother device ID. Here, the electric power of the magnetic field generator may indicate the amount of electric power used for charging the electric vehicle through the mobile charger 100. In addition, the self-meter reading data may further include a power consumption of the mother device 250 received from the mother device 250 by the child device 250.

According to an embodiment, the self-meter reading data may be periodically transmitted or received at the request of the remote reading server 300 while the self-meter 250 and the remote reading server 300 are connected.

In addition, the remote meter reading server 300 can request the data collecting apparatus 150 for the meter reading data as needed, and can receive the meter reading data of each collected customer from the data collecting apparatus 150 .

The remote meter reading server 300 can use the meter meter reading data received from the meter 250 and / or the meter meter reading data received from the data concentrating device 150 to calculate the pure usage electric power of the customer and the charge electric power Respectively.

That is, the electric utility charges the owner or the contractor of the mobile charger based on the self-meter reading data for the charging electric power of the electric car, and based on the meter reading data and the self-meter reading data, It is possible to charge only the net usage power of the excluded customer.

The remote meter reading server 300 can determine whether or not to permit the use of electricity for charging the electric vehicle.

According to the embodiment, the remote meter-reading server 300 confirms the electricity use right based on the parent gauge ID and / or the child gauge ID received from the child care giver 250, The electric power use permission message can be transmitted so that the electric power meter 250 can supply the electric power supplied from the electric power to the electric car.

FIG. 2 is a view illustrating a detailed configuration of a mobile charger and a mother device for charging and charging an electric vehicle according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, a plurality of mother devices 100a and 100b may exist at a point where the electric vehicle is to be charged through the mobile charger 200. [ For example, the first parent gauge 100a and the second parent gauge 100b may be installed side-by-side in the same building or may be located a short distance away from each other.

The first mother device 100a may support a plurality of power receptacles 110a, 120a and 130a. That is, the first mother device 110a is connected to the plurality of power outlets 110a, 120a, and 130a, and can measure the amount of power supplied from each of the plurality of power outlets 110a, 120a, and 130a.

Each of the plurality of power receptacles 110a, 120a, and 130a may be provided with an RFID tag containing its own socket ID information.

For example, the first RFID tag 111a may be attached to the first power outlet 110a, and the first RFID tag 111a may store the first outlet ID (Tag # 1). Also, the second RFID tag 121a may be attached to the second power outlet 120a, and the second RFID tag 121a may store the second outlet ID (Tag # 2). Also, the third RFID tag 131a may be attached to the third power outlet 130a, and the third RFID tag 131a may store the third outlet ID (Tag # 3).

Although the RFID tag is described herein as being attached to a power outlet, the present invention is not limited thereto. Depending on the embodiment, the attachment position may vary depending on the power outlet and the surrounding environment.

The first parent device 100a may store the outlet ID list 105a supported by the first parent device 100a. For example, a first outlet ID (Tag # 1), a second outlet ID (Tag # 2), and a third outlet ID (Tag # 3) may be included in the outlet ID list 105a of the first mother device 100a .

The second mother meter 100b may support a plurality of power outlets 110b, 120b and 130b. That is, the second mother device 110b is connected to the plurality of power outlets 110b, 120b, and 130b, and can measure the amount of power supplied and used from each of the plurality of power outlets 110b, 120b, and 130b.

The plurality of power outlets 110b, 120b, and 130b may be respectively attached with RFID tags containing their outlet ID information.

For example, the fourth RFID tag 111b may be attached to the fourth power outlet 110b, and the fourth RFID tag 111b may store the fourth outlet ID (Tag # 4). A fifth RFID tag 121b may be attached to the fifth power outlet 120b and a fifth RFID tag 121b may store the fifth outlet ID (Tag # 5). The sixth RFID tag 131b may be attached to the sixth power outlet 130b and the sixth RFID tag 131b may store the sixth outlet ID (Tag # 6).

The second parent device 100b can store the outlet ID list 105b supported by the second mother device 100b. For example, a fourth outlet ID (Tag # 4), a fifth outlet ID (Tag # 5) and a sixth outlet ID (Tag # 6) may be included in the outlet ID list 105b of the second mother device 100b .

The mother gauge 100a or 100b and the magnetic charger 250 of the mobile charger 200 may include a communication module 106a 106b or 255 for communication with each other and the communication module 106a, It can be implemented as power line communication (PLC) or Laura communication (LoRa) module. In addition, the mother devices 100a and / or 100b may be connected to an external device via a separate public and / or private network N3 other than the remote meter reading network N1 of FIG.

The mobile charger 200 is substantially identical to the mobile charger 200 of FIG. 1 except that an RFID reader 280 is added. The RFID reader 280 is an apparatus for acquiring the outlet ID information stored in the RFID tag attached to the power outlet, and may be installed in the portable charger 200. For example, the RFID reader 280 may be installed in the control box 200 as shown in FIG. 2. However, the RFID reader 280 is not limited thereto and may be a portable charger 200 such as a plug 210 or a connector 220 As shown in FIG.

3 is a flowchart illustrating a method of identifying a mother device for charging and charging an electric vehicle according to an embodiment of the present invention.

1 to 3, in order to identify a mother device 100 for charging and charging an electric vehicle, the mobile charger 200 may first acquire a unique ID of a power outlet to which charging power is to be supplied S110).

For example, the RFID reader 280 can acquire the fifth outlet ID (Tag # 5) from the fifth RFID tag 121b attached to the fifth power outlet 120b to which the charging power is to be supplied.

The obtained fifth receptacle ID (Tag # 5) can be transferred from the RFID reader 280 to the magnetic charger 250, and the magnetic charger 250 can receive the socket receptacle including the fifth receptacle ID (Tag # 5) An authentication request message may be generated (S120).

Thereafter, the magazine 250 provides the generated socket connection confirmation request message to the plurality of mother devices 100a and 100b, and informs each mother device 100a and 100b of whether or not the fifth socket outlet 120b is supported (S130).

The mother devices 100a and 100b receiving the confirmation request in step S130 confirm the fifth receptacle ID (Tag # 5) included in the receptacle support confirmation message and assign the fifth receptacle ID (Tag # It is possible to search whether the outlet ID (Tag # 5) is included (S140).

In response to the search result, the second mother device 100b supporting the fifth outlet ID (Tag # 5) may transmit an outlet support confirmation response message to the child device 250 (S150).

The second mother device 100b can then request the mother device ID information from the second mother device 100b. Upon receiving the mother device ID information request from the second mother device 100b, 250) (S160, S170).

According to this process, the magic device 250 can acquire the mother device ID for the mother device supporting the power outlet to receive the charging power, and can register the mother device using the acquired mother device ID .

On the other hand, when the mother device 100 receives the socket support confirmation message for the power receptacle supported by the mother device 100, the mother device 100 can register the socket 250 using the socket ID, And / or can be connected to an external device using a private network.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: mother gauge 110, 120, 130: power outlet
111, 121, 131: RFID tag 150: data concentrator
200: mobile charger 210: plug
220: connector 230: cable
240: Control box 250:
260: controller 270: communication interface
280: RFID reader 300: Remote meter reading server
400: Charger provider server

Claims (7)

A method of identifying a parent device of a mobile charger for charging an electric vehicle,
The RFID reader installed in the mobile charger obtains the socket ID assigned to the power outlet from the RFID tag attached to the power outlet;
Receiving a socket ID from the RFID interrogator installed in the mobile charger;
Providing the outlet ID to a plurality of mother devices existing in the vicinity of the power outlet, and requesting confirmation of whether or not the outlet is supported based on the provided outlet ID; And
And receiving the mother gauge ID from the mother gauge supporting the power outlet among the plurality of gauge gauge devices. The method according to claim 1,
Wherein the RFID reader is installed in at least one of a plug, a connector and a control box of the mobile charger. The method according to claim 1,
Wherein the mother device and the child device include a communication module for communication with each other, and the communication module is a power line communication module or a Laura communication module. The method according to claim 1,
Wherein the plurality of mother gauges stores a list of outlet IDs related to the power outlets supported by the mother gauges. The method according to claim 1,
Further comprising registering the mother device using the parent device ID. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
Further comprising the step of registering the child care device using the socket ID by a mother machine that supports the power outlet. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 6,
Further comprising the step of the mother machine connecting the registered daughter machine to an external public / private network. ≪ RTI ID = 0.0 > 11. < / RTI >

Images