KR20110029969A - A remote metering system for the recharge of an electric vehicle - Google Patents

Abstract

PURPOSE: A remote metering system for recharging of an electric vehicle is provided to indentify a user and charge the vehicle, and then it perform automatic billing of the power consumption of the user. CONSTITUTION: A remote metering system for recharging of an electric vehicle is comprised of a charge terminal(200), a controller(230) controlling the charge terminal, and a center management server(150) which is communicated with the controller. The charge terminal comprises a user identifier(220) and a charge port(210) charging the secondary battery of electric vehicle. The center management server comprises a billing server calculating a charge based on the user information and power consumption.

Description

{A Remote Metering System for the Recharge of an Electric Vehicle}

The present invention is used in conjunction with the electricity, water, heating, gas, hot water remote metering and billing system of buildings, apartments, etc., the electric vehicle charging remote metering system capable of user identification, electric vehicle charging, charging status alarm, integrated charging It is about.

In large buildings and apartment houses where a large number of tenants live, the amount of gas, water, calories, electricity, etc. are read at each automatic meter installed at each customer, and the meter data is transmitted to the central management server installed at a remote location by wire or wireless communication. A remote metering system that transfers, manages and charges meter reading data is common.

1 and 2, conventional remote metering systems are disclosed.

Conventional remote meter reading system is a variety of meters for reading the use of water, hot water, gas, heating, power at each consumer, that is, water meter 110, hot water meter 111, heating meter 112, gas meter (113), the meter reading data from the power meter 114, etc. by using a wired or wireless communication method to concentrate the communication terminal unit 120 or generation-specific integrated meter device 121, and then the communication terminal unit 120 or the integrated meter reading device 121 ) Will send the meter data of each consumer to the relay device (130). The relay device 130 transmits the meter reading data of a plurality of customers (usually about 128 consumers per one relay device) to the central management server 150 of the building management room through the interface device 140.

The central management server 150 is a server that performs the monitoring and information processing of the entire building or complex, including the charging server 160 to automatically charge the charges according to water, hot water, gas, heating, and power usage of each customer. do.

In addition, if necessary, it is also possible for the meter reader to directly check the metering data in the integrated metering device 121 or the relay device 130 through the wireless terminal 170 called a handy terminal.

Communication method between meter, communication terminal block, integrated meter reading device, integrated remote meter reading server, and wireless terminal is selected according to the surrounding environment.D-PLC (power line communication), RS 232, RS 485, RFID, TCP / IP LAN Any form of communication, such as COAX, optical communication, or wireless LAN, is not a big problem for small meter reading data transmission.

D-PLC, RS 232, and RS 485 are commonly used in a typical remote meter reading system in a building or apartment house. The selection of a communication method in the remote meter reading system is only a selection of known technologies.

In recent years, the introduction of electric vehicles has been actively promoted to reduce the use of fossil fuels and greenhouse gas emissions. Plug-in hybrid cars and electric vehicles should be charged by the user by charging the secondary battery of the electric vehicle.

However, charging a secondary battery usually requires a long time, and even though a current service station provides a charging service, a large number of vehicles cannot be charged quickly due to space constraints. There is a need for a system that can charge a vehicle's secondary battery.

To this end, a charging system for electric power consumption according to charging an electric vehicle is required. Since a vehicle is not parked at a predetermined place, a system for identifying a user and processing a charge for electric power use accordingly is required.

The present invention has been devised to solve this problem is installed in the parking lot of buildings, multi-unit housing (hereinafter referred to as 'building'), has a user identification function and is connected to the central management server of the building, The present invention relates to an electric vehicle charging remote meter reading system that displays information according to an electric vehicle charging state in an image, text, or sound.

The present invention relates to an electric vehicle charging remote meter reading system installed in a parking lot of a building and used for charging an electric vehicle. The electric vehicle charging remote meter reading system includes a charging terminal, a controller for controlling a charging terminal, and a controller. It is configured to include a central management server to exchange information.

When the user connects the charger of the electric vehicle to the charging port of the charging terminal and authenticates the user identification through the user recognizer, the charging terminal controller controls the charging operation of the electric vehicle.

The controller performs functions such as controlling the charging current, reading power usage, preventing overcharging, and monitoring the operation status of the charging terminal, and controlling various types of information including user information transmitted from the user recognizer, power usage transmitted from the power meter, and charging status. It is sent to the central management server of the building. The central management server performs the charging according to the charging using the data received from the controller and the user information stored in the server, and displays the charging status on the wall pad installed in each customer through the wall pad server, or the external communication server. Through the transmission to the user's communication terminal (cell phone, etc.).

The electric vehicle charging remote meter reading system according to the present invention can identify a user in a parking lot in a building, thereby charging the electric vehicle, and perform automatic charging for power consumption for each user.

Accordingly, it is possible to integrate the electric vehicle charging fee for each user with the existing bills such as water, gas, and heating.

In addition, by transmitting the charging state information of the vehicle to the wall pad and the user terminal, it is possible to obtain the effect that the user can check the charging state of the electric vehicle in real time.

Hereinafter, an electric vehicle charging remote meter reading system according to the present invention will be described in detail with reference to the accompanying drawings.

3 shows a schematic diagram of an electric vehicle charging remote meter reading system including an electric vehicle charging remote meter reading system according to the present invention.

A plurality of charging terminals 200 are installed in a parking lot of a building, and the connector of the electric vehicle is coupled to the connector formed in the charging port 210 of the charging terminal to charge the secondary battery of the electric vehicle. The charging fee according to the charging of the electric vehicle is charged to the user by the central management server that performs the remote metering of the building's water, gas, and hot water.

Hereinafter, the electric vehicle charging remote meter reading system will be described in more detail.

The electric vehicle charging terminal 200 may be configured in a decentralized or integrated manner, Figure 4 discloses an electric vehicle charging remote meter reading system using a distributed electric vehicle charging terminal 200.

The decentralized electric vehicle charging terminal uses a user recognizer 220 that recognizes a user, a connector 212 for making electrical contact with the electric vehicle, and a charging port 210 for supplying electric power to an electric vehicle by using external power. The operating state of each component of the charging terminal through the power meter 211 that reads the amount of electricity, the sensor unit 260 that monitors the state of the charging terminal, the measurement data of the sensor unit 260 and the error checking logic built into the controller itself. It consists of a controller 230 for monitoring and controlling the operation, a display unit 250 for displaying information according to the command of the controller and a communication unit 240 for performing external communication with the controller.

The charging port may be configured to be coupled with a transformer for converting an external power source into a voltage suitable for charging an electric vehicle, if necessary.

When a user inputs user information to the user recognizer 220, the user recognizer 220 provides the user information to the controller 230. As another embodiment, a separate controller may be installed and configured in the user recognizer, or the controller of the charging terminal 200 may be configured to be integratedly controlled.

The means for inputting user information to the user recognizer is made through biometric information such as RFID, magnetic card, fingerprint / hongche, input of ID and password through the keypad, and reading of the user information storage chip inserted into the mobile phone terminal. Can be any type of information that can be managed by the central management server.

In addition, the user recognizer may have one user information input means or simultaneously have a plurality of user information input means.

When the controller 230 transmits the user information input from the user recognizer 220 to the central management server 150 through the communication unit 240, the central management server transmits authentication information indicating whether the user is a valid user to the controller. .

When notified by an invalid user from the central management server, the controller 230 does not start charging, and outputs a warning indication to the display unit 250.

If it is determined that the user is a valid user from the central management server, the controller controls the charging port to start charging the electric vehicle electrically coupled by the connector 212 of the charging port 210.

Before the start of charging, the controller 230 detects at least one of the temperature, current, voltage, disconnection of the charging wire, short circuit of the charging terminal, electric vehicle secondary battery charging status, bad connector contact, and disconnection of the connector. Of course, while charging, it is possible to monitor the operation state of the charging terminal, including the state of the electrical connection of the charging port 210 and the electric vehicle and determine whether to start or continue charging.

That is, the controller is connected to the charging terminal, including the disconnection / leakage of the charging circuit including the electric vehicle connected, the poor contact and disconnection of the connector, the state of charge of the secondary battery, the temperature of the charging terminal (overheating), overcurrent, failure due to self-diagnosis. It is to check whether or not.

This test is a function of the degree that the industrial circuit breakers and chargers normally have, so the specific technique for performing this is not specifically described.

In particular, poor connector contact and disconnection of the connector can be recognized by mechanical or electrical switch contact or voltage abnormality in the charging terminal.

Circuit break, short circuit, connector contact failure, secondary battery buffer, overheating of charging terminal, overcurrent, abnormal voltage (overvoltage, undervoltage, voltage fluctuation), etc. If confirmed, the controller 230 generates a warning signal according to the display unit 250 of the charging terminal and does not proceed with charging.

In addition, the control unit transmits this information to the pressure management server 150 so that the central management server can reflect this to the billing, warning processor described later.

The display unit may be any one as long as it can recognize the inspection state to the user, including the occurrence of sound such as an LCD panel, a flashing light, or the like.

The controller also monitors the state of charge such as disconnection / leakage of the circuit, poor connector contact, secondary battery charge, and overheating, overcurrent, and overvoltage of the charging terminal. When a short circuit, a poor contact of a connector, a secondary battery buffer, overheating, an overcurrent, an abnormal voltage, and the like are confirmed, the controller stops charging through the charging port and transmits an event signal to the central management server. In addition, information corresponding to the display unit 250 may be displayed.

In addition, the controller receives meter reading data of the amount of power used from the start of charging to the stop of charging through the power meter 211, and transmits it to the central management server 150.

The central management server stores data regarding user information, abnormality occurrence information, power usage amount, and the like in a database of the charging server 160. The billing server 160 performs billing for each user by using user information, abnormality occurrence information, and power consumption data.

Accordingly, the charging fee of the electric vehicle may be notified or separately notified with water, gas, heating, and hot water for each user, and the billing sum period may be arbitrarily selected.

The central management server receives charge status information of each charging terminal and checks the user corresponding to the user received from the controller through the wall pad server 162 in the user database, such as the wall pad 410 and the speaker installed in the corresponding customer. The information display terminal 420 may be displayed as an image, text, or sound. As described above, the communication between the wall pad server and the wall pad may be used in any of the wired and wireless methods, and the selection of the communication method is merely a selection of known technology.

In addition, the central management server may check the information stored in the user database through the external communication server 163 and transmit the information on the state of charge to the communication terminal (cell phone, etc.) of the user.

That is, when the charging is stopped or the charging of the secondary battery is completed due to a problem in the electrical connection such as disconnection of the connector, an electrical short circuit, or an overheat / overcurrent, the user is notified of the problem.

The centralized charging terminal is disclosed in FIG. 5, which compares to the distributed charging terminal disclosed in FIG. 4 except that one controller controls a plurality of charging terminals, and the electric vehicle using the distributed electric terminal described above. It works the same way as a charging telemeter system.

In this case, a power meter that reads the power consumption may be selected to be installed in each charging terminal, or collected and installed in a controller.

The communication method between the charging terminal and the central management server may be any conventional method such as D-PLC (power line communication), RS 232, RS 485, RFID, TCP / IP LAN, COAX, optical communication, wireless LAN, as shown in the related art. It is irrelevant and D-PLC, RS 232 and RS 485 methods which are widely used in the remote meter reading system in the apartment house may be selected. The selection of the communication method in the remote meter reading system is only a known technique.

The electric vehicle charging remote meter reading system according to the present invention is able to identify the user in the parking lot in the building and the like to charge the electric vehicle, and perform the automatic charging for the power consumption per user, the electric vehicle charging fee for each user, Integrating with existing bills such as gas, heating, etc., it will be possible to notify or individually.

When an abnormal state is detected while charging an electric vehicle, charging is automatically stopped and the vehicle's charging status information is transmitted to the wall pad and the user terminal, so that the user can check the charging state of the electric vehicle in real time and cope with it. Can be obtained.

1: Conventional remote meter reading system

Fig. 2: Conventional remote meter reading system

Figure 3: Electric vehicle charging remote meter reading system according to the present invention

Fig. 4: Electric vehicle charging remote meter reading system having a decentralized charging terminal according to the present invention

Fig. 5: Electric vehicle charging remote meter reading system having a centralized charging terminal according to the present invention

* Explanation of symbols for the main parts of the drawings

100: conventional remote meter reading system

110: water meter

113: gas meter

114: power meter

120: communication terminal block

121: integrated meter reading device

130: repeater

150: central server

160: billing server

162: wall pad server

163: external communication server

200: Charging Terminal

210: charging port

220: user recognizer

230: controller

240: communication unit

250: display unit

260: sensor

410: wall pad

420: user terminal

Claims (8)

Including a plurality of charging terminals installed in the building for charging the electric vehicle, the controller for controlling the charging terminal, the central management server connected to the controller, The charging terminal includes a user recognizer for recognizing user information; A connector coupled to the charging connector of the electric vehicle is installed and is configured to include a charging port for supplying power to the electric vehicle to charge the secondary battery of the electric vehicle; The controller transmits the user information input to the user recognizer to the central management server, and receives the user authentication information that determines whether the user is a valid user from the central management server so that charging starts only when the valid user authentication information is received. Control the charging terminal; The central management server includes a billing server for calculating an electric vehicle charging fee for each user by using user information and power usage information transmitted from the controller; Electric vehicle charging remote meter reading system comprising a. The electric vehicle charging remote meter reading system of claim 1, wherein the controller controls a plurality of charging terminals. The electric vehicle charging remote of claim 1 or 2, wherein the user recognizer receives user information using one or more methods selected from the group consisting of RFID, magnetic card, biometric, keypad input, and communication terminal authentication. Meter reading system. The charging terminal of claim 1, wherein the charging terminal comprises: a display unit displaying information selected by a controller; And Electric vehicle charging remote meter reading system characterized in that it further comprises a power meter for reading the amount of power used for charging. The charging terminal of claim 1, wherein the charging terminal comprises: a temperature, a current, a voltage of the charging terminal; Disconnection, short circuit of wiring; Electric vehicle secondary battery state of charge; Electric vehicle charging remote meter reading system characterized in that the sensor unit for detecting at least one or more of the connector contact failure, the connector disconnection. The method of claim 5, wherein the controller is a state of charge of the electric vehicle secondary battery; Charging terminal temperature, current, voltage; Disconnection of wiring, short circuit, bad connector contact, disconnect connector; Charge terminal overheating, overcurrent, abnormal voltage occurrence; And at least one or more pieces of information selected from a group including charging terminal failure information are transmitted to the central management server or displayed on the display unit of the charging terminal. 6. The method of claim 5, wherein the controller comprises: buffering an electric vehicle secondary battery before or during charging; Disconnection of wiring, short circuit, bad connector contact, disconnect connector; The electric vehicle charging remote meter reading system, characterized in that the charging is not performed when at least one of the terminal overheating, overcurrent, abnormal voltage generation and the failure of the charging terminal is detected. The method of claim 6, wherein the central management server is a state of charge of the electric vehicle secondary battery; Charging terminal temperature, current, voltage; Disconnection of wiring, short circuit, bad connector contact, disconnect connector; Charge terminal overheating, overcurrent, abnormal voltage occurrence; And displaying at least one or more of the information selected from the group including the charging terminal failure information on the wall pad in the user's user through the wall pad server as an image, text or sound, or transmitting the information to the user terminal through an external communication server. Electric vehicle charging remote meter reading system, characterized in that to perform one or both.

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