KR20200119998A - Automatic charging system of electric vehicel and system for distinguishing parking status of vehicle using sensor fusion - Google Patents

Abstract

An objective of the present invention is to contribute to battery performance improvement. An automatic charging system for an electric vehicle, which can be moved on a parking lot wall, comprises: a license plate number recognition unit (100) to recognize a license plate number through image recognition; a charging order determination unit (200) to determine a charging order by using an ultrasonic sensor; a communication unit (300) to perform communication between a charger and a vehicle; an electric vehicle determination unit (400) to determine whether a vehicle is an electric vehicle based on communication of the communication unit; and a charging terminal connection unit (500) to move to an electric vehicle to automatically connect a charging terminal.

Description

Electric vehicle automatic charging system and vehicle parking status identification system using sensor fusion {AUTOMATIC CHARGING SYSTEM OF ELECTRIC VEHICEL AND SYSTEM FOR DISTINGUISHING PARKING STATUS OF VEHICLE USING SENSOR FUSION}

The present invention relates to an electric vehicle automatic charging system and a vehicle parking state identification system using sensor fusion. Specifically, it relates to a mobile electric vehicle automatic charging system on the wall of a parking lot. The present invention relates to a system for starting and ending automatic charging by inserting a charger into an inlet of an electric vehicle parked using a horizontal moving rail and a robot arm on the wall of an indoor parking lot, and a technology for building an electric vehicle charging infrastructure.

The world is making efforts to implement eco-friendly energy policies, fearing the deepening of environmental pollution caused by increasingly depleted petroleum energy and greenhouse gases, and electric vehicles are one such energy policy. Electric vehicles are more energy efficient than conventional internal combustion engine vehicles, can reduce fuel costs in the long run, and are easy to maintain. World-renowned automakers such as Tesla and Audi are expected to produce electric vehicles at more reasonable prices with the active support of the national government and devote a lot of energy to technology development, and the electric vehicle market is expected to grow even larger.

In 2017, the Korea Imported Vehicle Association (KAIDA) announced that the cumulative number of registered electric vehicles in Korea exceeded 20,000. It achieved more than twice the number compared to 2016, which was just last year. As such, the scale of the domestic electric vehicle market is gradually increasing, whereas the electric vehicle charging infrastructure is very poor. According to the Ministry of Environment, as of April 2017, the number of electric vehicle chargers installed nationwide was 1,320 rapidly and 1406 slowly, compared to the cumulative number of registered electric vehicles exceeding 20,000.

In general, the charging time of an electric vehicle takes 30 minutes for a fast and 4 to 9 hours for a slow charge. As a result, owners of electric vehicles are experiencing the hassle of visiting a few charging stations and waiting a long time for charging to complete. The current government is also aware of the lack of electric vehicle charging infrastructure than demand, and is implementing various policies and supports to establish the infrastructure. Therefore, the improvement of the current electric vehicle charging system for the construction and distribution of electric vehicle charging infrastructure is an essential task that must be solved for the future.

Normal charging starts directly by the driver, and even though it takes a long time, there is an inconvenience of having to finish charging and carry out mobile parking after waiting for full charge. In addition, there is a limitation in that you have to visit the charging station for charging, and there are few places and you have to wait for the vehicle being charged to leave without waiting order.

The automatic charging system for a mobile electric vehicle on the wall of a parking lot according to the present invention has the following challenges.

First, it is intended to provide a service that relieves the inconvenience of the driver waiting for vehicle charging or moving parking after completion.

Second, it tries to contribute to the improvement of battery performance by preventing complete discharge and overcharging at the same time.

However, the technical problems to be achieved by the embodiments of the present invention are not limited to the above-mentioned problems, and various technical problems may be derived from the contents to be described below within a range that is obvious to a person skilled in the art.

The present invention is an electric vehicle automatic charging system for moving on a wall of a parking lot, comprising: a vehicle number recognition unit 100 for recognizing a vehicle number through image recognition; A charging order determination unit 200 for determining a charging order using an ultrasonic sensor; A communication unit 300 for performing communication between the charger and the vehicle; An electric vehicle determination unit 400 that determines whether or not an electric vehicle is based on communication from the communication unit; And it characterized in that it comprises a charging terminal connector 500 for automatically connecting the charging terminal by moving to the electric vehicle.

The automatic charging system for electric vehicles on the wall of a parking lot according to the present invention has the following effects.

First, the automatic charger detects the parked electric vehicle and starts and ends charging, thereby eliminating the inconvenience of the driver's electric vehicle charging.

Second, power peaks can be prevented by sequentially charging several parked vehicles (3-4 vehicles) with one charger. Electric vehicle chargers have the effect of generating blackout when using multiple units at the same time with high power.

Third, there is an effect of contributing to battery life and performance improvement by preventing battery discharge and overcharging.

Fourth, autonomous charging is possible during times when the vehicle is not operated for a long time (after work, at night, during sleep, from work to work, etc.), thereby reducing the driver's worries about the remaining battery power.

Fifth, there is an effect of reducing installation and manufacturing costs since it utilizes an empty space that has not been used before and can charge multiple vehicles with one.

1 is a schematic diagram of an electric vehicle automatic charging system according to the present invention. Figure 2 shows that the robot arm of the charging system according to the present invention is folded.
3 shows that the robot arm of the charging system according to the present invention is unfolded. 4 shows a rail for horizontal movement in the present invention.
5 is an example of a vehicle according to the present invention, and FIG. 6 is a result of recognition of the vehicle. 7 is an algorithm for determining a charging order based on the parking order.
8 shows a communication configuration between a charging station and a vehicle.
9 is a flowchart of a warning system when using a fuel vehicle in an electric vehicle charging space. 10 is a schematic diagram of a rail and a robot arm according to the present invention.
11 shows a Dobot, a sliding rail kit capable of precise control. 12 shows the position and rotation direction of each axis of the 6-axis robot arm.
13 shows a rail and slide configuration diagram.
14 to 16 show charging in the charging system according to the present invention.
17 shows a configuration of a system for determining a parking state of a vehicle using sensor fusion.
18 shows the functions of each component of a system for determining a parking state of a vehicle using sensor fusion.
19 is an exemplary diagram of an operation in which a system for determining a parking state of a vehicle using sensor fusion detects a parking state.

Advantages and features of the present invention, 　, and a method of achieving them will become apparent with reference to the embodiments described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, 　 only these embodiments make the disclosure of the present invention complete, and 　 those having ordinary knowledge in the technical field to which the present invention pertains. It is provided to fully inform the person of the scope of the invention, and the scope of the invention is only defined by the claims.

In describing the embodiments of the present invention, detailed descriptions of known functions or configurations will be omitted except when actually necessary in describing the embodiments of the present invention. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

The functional blocks shown in the drawings and described below are only examples of possible implementations. In other implementations, other functional blocks may be used without departing from the spirit and scope of the detailed description. Also, although one or more functional blocks of the present invention are represented as individual blocks, one or more of the functional blocks of the present invention may be a combination of various hardware and software configurations that perform the same function.

In addition, the expression of including certain constituent elements is an open expression and simply refers to the existence of the constituent elements, and should not be understood as excluding additional constituent elements.

Further, when a component is connected to or is referred to as being connected to another component, it should be understood that it may be directly connected or connected to the other component, but other components may exist in the middle.

In addition, expressions such as'first, second', etc. are used only for distinguishing a plurality of elements, and do not limit the order or other features between the elements.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As environmental problems such as air pollution become serious, the need for commercialization of electric vehicles is on the rise. The first gateway for commercialization is the establishment of a charging infrastructure with good accessibility and high efficiency, and technical measures are required to solve this. To meet these social needs, a study was conducted on'Wall-Charger (hereinafter referred to as Wall-C)', a mobile electric vehicle automatic charging system on the wall of an indoor parking lot, considering the efficiency of electric vehicle charging and minimization of installation and management costs.

Hereinafter, the present invention will be described with reference to the drawings. 1 is a schematic diagram of an electric vehicle automatic charging system according to the present invention. 2 shows that the robot arm of the charging system according to the present invention is folded. 3 shows that the robot arm of the charging system according to the present invention is unfolded. 4 shows a rail for horizontal movement in the present invention.

1 shows a state in which charging is in progress by inserting an end portion of the charger into an electric vehicle inlet through a robot arm from an electric vehicle charger horizontally moving the wall of a parking lot with a wall rail.

Figure 2 shows that it has four or more joints, and joint 1 is a rotation extending from the wall to the vehicle, and joints 2 and 3 are rotated to match the distance and height by extending or bending the robot arm. Show. Lastly, joint 4 acts as a charger insertion part as a distal end. When it reaches the position aligned horizontally with the electric vehicle inlet from joints 1, 2, and 3, the 4th axis extends parallel from the linear motor to the electric vehicle inlet. Is inserted.

In FIG. 3, a situation in which all four axes mentioned in FIG. 2 are unfolded can be seen.

Figure 4 shows that the charger is moved horizontally on the wall by using a linear actuator and a step motor.

An object of the present invention is to solve the inconvenience of the conventional method in which an electric vehicle driver must visit a charging station and wait for charging to be completed. It overcomes the physical limitations of the 1:1 charging method of existing chargers, and reduces operating costs by applying the 1:N charging method and automation.

The present invention repeats the following process.

i) When the vehicle is parked, the vehicle is recognized with an ultrasonic sensor.

ii) Recognize the license plate with the camera and acquire vehicle information. If it is not an electric car, a notification will notify you to park elsewhere.

iii) Plug in the cable by calculating the location of the charging port of the vehicle with the depth camera.

iv) When another vehicle enters while charging, repeat ii).

v) When charging is over, go to the next car and start charging.

By recognizing the license plate through vehicle image recognition, the vehicle type/owner/inlet location can be identified from the DB.

By measuring the angle between the wall and the vehicle using depth camera, it is possible to understand the charger insertion algorithm using the robot arm.

The robotic arm can be moved to a position close to the vehicle that needs charging through the horizontal moving rail using linear actuators.

The robotic arm can be used as a tool to move the charger to the electric vehicle inlet.

Bluetooth communication between the vehicle and the charger can be used as a means for transmitting and receiving information such as opening of a charging port or remaining battery capacity.

The ultrasonic sensor can determine whether the vehicle is parked, and give priority to the charger in the order of parking.

In the following, the present invention is divided into the following five steps, and will be described for each step.

1. Vehicle number recognition through image recognition

Using the above result, information about the owner, vehicle type, and inlet location is received from DB. It shows an example of recognizing the license plate of the vehicle and outputting the number as an output when the vehicle example picture of FIG. 5 is input as input. The system was implemented in Python, and now it recognizes the vehicle number based on data held by the API provided by Microsft.

This is a free feature, and the number of APIs that can be called per day is limited, and the period that can be used per account is limited. In the future, we will either purchase an account that can be used continuously, or create a program that recognizes the vehicle number by collecting training data on its own.

2. Determine the order of charging using ultrasonic sensors

7 is an algorithm for determining a charging order based on the parking order.

3. Communication between charger and vehicle

In order to receive the vehicle's battery information, communication between the vehicle and the charging period is necessary. Electric vehicles have a built-in communication controller (EVCC) module for communication. For communication, the controller has an IP stack and a CAN stack. In general, when communicating, information about vehicle number, owner, payment information, etc. can come and go, so TLS-based authentication and data transmission systems are required.

8 shows a communication configuration between a charging station and a vehicle.

Both EVs and chargers have IP addresses and communicate via IPv6. EVCC has a local IP address for communication inside the vehicle and a global IP address for communication with the outside. For the security protocol of the transport layer, TCP, UDP, and TLS are used. Through the TLS protocol, they can authenticate each other and safely transmit billing and payment information. Electric vehicles act as clients and chargers act as servers.

4. Determination of electric vehicle

The present invention will be installed in a parking space for electric vehicles, and has a function of generating an immediate warning alarm when a general vehicle parks in the electric vehicle parking space according to related laws. To solve this problem, Wall-C gives an alarm through a warning system when the vehicle parked at the vehicle recognition stage is not a pre-registered electric vehicle vehicle.

9 is a flowchart of a warning system when using a fuel vehicle in an electric vehicle charging space.

In the case of alarm voice, it was produced using TTS (Text-to-Speech) of Google Cloud API. Currently, it performs a general alarm function, such as "This is a parking space for electric vehicles. Please park it elsewhere." However, if applied to the actual parking lot, a fine will be imposed if the fuel vehicle of vehicle owner XXXX parks here. It will raise awareness by saying the recognized vehicle number, such as "." and saying that a fine may be imposed. When using Google Cloud API, STT (Speech-to-Text) function is also available, allowing charger users to give commands by voice.

5. Rail and robot arm

The rail uses a linear actuator, and the robot arm for charging uses a robot arm with more than 4 axes. When information about the vehicle is received through image recognition, if the vehicle is parked in parallel, the location of the charging port can be known as a left sign value in space if the distance between the vehicle and the charger is known.

10 is a schematic diagram of a rail and a robot arm according to the present invention, and FIG. 11 shows a Dobot and a sliding rail kit capable of precise control.

The robot arm, which received the left sign value, moves along a path that does not collide with the vehicle and is set to plug into the charging port. If parking is not parallel to the parking line, but the left sign value of the charging port is different, I would like to present a method to determine the final position by calculating how far it is twisted using the depth camera.

Hereinafter, a step that requires a more detailed description of each step of the present invention will be described further.

1) Moving the charging terminal to the target point through robot arm control

In the case of an industrial robot arm, it is programmed to move along a certain path when performing repetitive tasks such as welding. However, in the case of a charging robot arm, it is necessary to consider that the charging port location is different depending on the vehicle and the parking state is not constant. Through the research, we solved the former problem by interlocking with the server to receive vehicle information, and the latter problem is to be solved using a depth camera that measures depth.

In order to receive vehicle information through the server, data on the user information, vehicle number and vehicle type, which have been stored in advance, are required. When information about the vehicle is received through image recognition, the location of the charging port can be known as a left sign value in space if the distance between the vehicle and the charger is known when parked in parallel.

The robot arm, which received the left sign value, moves along a path that does not collide with the vehicle and is set to plug into the charging port. If parking is not parallel to the parking line, but the left sign value of the charging port is different, I would like to present a method to determine the final position by calculating how far it is twisted using the depth camera.

12 shows the position and rotation direction of each axis of the 6-axis robot arm.

The robot arm used in the study has 6 axes as shown in the figure above. The distance relationship from the center of the first axis (1 axis in the figure) to the most distal axis of the 6-axis robot arm can be expressed as a coordinate. Set the DH parameter according to the Denavit-Hartenberg protocol of robot dynamics, as shown in the following equation. Through matrix operation, the x, y, z coordinate values of the terminal can be obtained.

In the research process, a model car was used, not an actual car, so the coordinates were set and operated. In the process of finding the set position using the first prototype, a lot of vibration occurred in the two axes, which took a lot of load after operation, due to the limitation of the servo motor for rotation of each axis. To solve this instability and for precise control, we intend to use Dobot, an intelligent robot arm for industrial and educational purposes. This robot arm and depth camera are used to calculate and plug in the vehicle's condition and charging port position by itself in any parking condition in the future.

2) Sliding rail for horizontal movement of robot arm

Rail for horizontal movement is essential for the robot arm to find a vehicle that needs charging. As the main purpose of the rail is to bring the charger and the vehicle as close as possible, the robot arm must move precisely so that it is easy to access the charging port of the electric vehicle. Therefore, the use of both step motor control and ultrasonic sensor is key.

Step 1 Checking the presence or absence of a parked vehicle-By placing an ultrasonic sensor at each parking position, it determines whether the vehicle is parked at the corresponding position in real time.

An object that is continuously detected within a certain distance from the ultrasonic sensor is determined as a vehicle, and the determination of electric vehicle recognition, vehicle type, and charging port location can be confirmed later through image recognition and database. When it is determined that the vehicle is parked through the ultrasonic sensor, the location and time at which the vehicle was parked is transmitted to the main robot and recorded. The main robot moves the robot arm through the rail using a step motor based on the information received from the ultrasonic sensor.

13 shows a rail and slide configuration diagram.

Step 2 Rail control-It is necessary to control a step motor to move the rail based on the position and time received from the ultrasonic sensor. At this time, measure the gear ratio between the gear connected to the step motor and the gear of the rail so that the robot arm can be moved to the correct position. Through this, the correlation between the angle of the step motor and the moving distance of the rail can be obtained, and the horizontal movement of the rail as much as desired can be realized through the control of the step motor.

3) Vehicle license plate recognition using image recognition

Azure is one of the cloud services provided by Microsoft and provides several APIs. It uses Microsoft Azure's Computer Vision API to recognize the license plate of the vehicle and the entrance of the charger to find the charging port. The recognized vehicle number is stored in the database along with the charging fee. When the vehicle is recognized and charged, if another user randomly picks it up and inserts it into another vehicle, the bill is charged to the existing user, not the actual user. To prevent this, the license plate is newly recognized when the charging arm is moved. (See Figs. 5 and 6)

5 shows an example of recognizing the license plate of the vehicle and outputting the number as an output when a vehicle example picture is input as an input. The system was implemented in Python, and now it recognizes the vehicle number based on the data held by the API provided by Microsoft.

This is a free feature, and the number of APIs that can be called per day is limited, and the period that can be used per account is limited. In the future, we will either purchase an account that can be used continuously, or create a program that recognizes the vehicle number by collecting training data on its own.

4) Charging order determination algorithm

i) When the vehicle is parked, the vehicle is recognized with an ultrasonic sensor.

ii) Recognize the license plate with the camera and acquire vehicle information. If it is not an electric car, a notification will notify you to park elsewhere.

iii) Plug in the cable by calculating the location of the charging port of the vehicle with the depth camera.

iv) When another vehicle enters while charging, repeat ii).

v) When charging is over, go to the next car and start charging.

12 shows the position and rotation direction of each axis of the 6-axis robot arm.

5) Charger and vehicle communication

In order to receive the vehicle's battery information, communication between the vehicle and the charging period is necessary. Electric vehicles have a built-in communication controller (EVCC) module for communication. For communication, the controller has an IP stack and a CAN stack. In general, when communicating, information about vehicle number, owner, payment information, etc. can come and go, so TLS-based authentication and data transmission systems are required. Both EVs and chargers have IP addresses and communicate via IPv6. EVCC has a local IP address for communication inside the vehicle and a global IP address for communication with the outside. For the security protocol of the transport layer, TCP, UDP, and TLS are used. Through the TLS protocol, they can authenticate each other and safely transmit billing and payment information. Electric vehicles act as clients and chargers act as servers.

8 shows a communication configuration between a charging station and a vehicle.

6) Electric vehicle charging space, fuel vehicle parking recognition and warning system development

It's been a while since a bill banning the parking of general internal combustion vehicles in electric vehicle charging stations and imposing fines. However, the problem of parking in the electric vehicle charging area of ordinary cars still remains. Parking in the charging zone is an important issue for EV drivers depending on whether they can drive or not. However, if you cannot reach the owner of the parked fuel vehicle, you will have to wait for it to return or go to another charging station. Such things happen frequently in public institutions with limited parking spaces or in parking lots within apartment complexes, leading to a fight between neighbors.

9 is a flowchart of a warning system when using a fuel vehicle in an electric vehicle charging space.

To solve this problem, Wall-C gives an alarm through a warning system when the vehicle parked in the vehicle recognition stage is not a pre-registered electric vehicle vehicle. In the case of alarm voice, it was produced using TTS (Text-to-Speech) of Google Cloud API. Currently, a general alarm function is executed, such as "This is a parking space for electric vehicles. Please park elsewhere." However, when applied to the actual parking lot, a fine will be imposed if the fueled vehicle of the owner of "XXXX" is parked here. It will raise awareness by saying the recognized vehicle number, such as ", and saying that a fine may be imposed.

When using Google Cloud API, STT (Speech-to-Text) function is also available, allowing charger users to give commands by voice.

By combining all of the above results, we produced a prototype, and the execution results are shown in FIGS. 14 to 16. 14 to 16 show charging in the charging system according to the present invention.

Next, a system for determining a parking state of a vehicle using sensor fusion will be described.

FIG. 17 shows a system for determining the parking state of a vehicle using sensor fusion, and FIG. 18 illustrates functions of each component of the system for determining the parking state of a vehicle using sensor fusion.

When autonomous vehicles are commercialized, the vehicle-sharing economy will be activated. A self-driving car sharing service will be operated that calls and returns a driverless car just like calling a taxi when an individual needs to move without having to own a car. At this time, in order to minimize the cost of refueling, charging, and managing the car, and to increase efficiency, there will be minimal managers or unmanned. To this end, maintenance and automation of refueling or charging will be essentially developed, and grasping the'vehicle status' and'parking status' is the first step in the process.

There is a limit in detecting vehicle body damage such as scratches or warping by installing sensors on the vehicle itself. If humans check it, it takes a lot of time and cost, and its accuracy is poor. The above limitations can be overcome by using image sensors and image recognition.

Depending on the vehicle model, the location of the inlet, which is a gas or charging port, is determined, so if you check the parking status, you can know the location of the inlet in the space. A manipulator such as a robotic arm will be used to connect the connector to the vehicle inlet, and failure to determine the exact location of the inlet will cause vehicle damage. It is possible to increase the accuracy of checking the parking status and increase the reliability of the automation of refueling and charging.

The role of the configuration of the system to determine the parking state of the vehicle using sensor fusion is as follows.

1) Vehicle information transmission unit

-Recognizes the vehicle through license plate recognition, image recognition, etc., and retrieves the vehicle's information from a server or pre-built data storage device.

2) Camera sensor part

-As shown in Fig. 19, a camera is installed in the parking lot (wall, ceiling, module type, etc.) to input the distance to the wall and the ground. After capturing an image or video when parking, the vehicle's feature points or lines are extracted using edge detection algorithms (Edge Detection-Canny, Sobel, Prewitt, Robert Detection, etc.) and line transformation algorithms (Line Transform-Hough, Radon transform, etc.).

-When parallel parking received from the vehicle information transmission unit, the values of the feature points or lines and the values extracted above are compared to determine the vehicle status and predict the parking status.

3) Distance measurement sensor unit

-Install a distance measurement sensor (ultrasound, radar, lidar, depth camera, etc.) in the parking lot (wall, ceiling, module type, etc.) to input the distance to the wall and the ground. When parking, the distance between the vehicle's feature points or lines and the sensor unit is measured.

-Predict the parking condition by comparing the parallel parking distance data received from the vehicle information transmission unit and the measured values above.

4) Data Fusion Module

-Comparing and filtering the predicted parking condition based on image recognition received from the camera sensor unit and the predicted parking condition based on depth data received from the distance measurement sensor unit to determine the inlet position in the space.

-If the value of the identified feature point is different from the general vehicle due to vehicle body damage or tuning, it is uploaded to the server or storage device. Through this, it determines whether the vehicle is damaged, improves accuracy when determining the parking status, and reduces measurement time.

Accordingly, the system of FIG. 17 can automate a vehicle-related system by identifying the vehicle and parking conditions. It improves maintenance and management efficiency by automating the detection of vehicle body damage such as scratches or warping. Autonomous fueling and charging can eliminate the hassle and minimize cost.

The embodiments of the present invention described above can be implemented through various means. For example, embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.

In the case of hardware implementation, the method according to embodiments of the present invention includes one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), and Programmable Logic Devices (PLDs). , Field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.

In the case of implementation by firmware or software, the method according to the embodiments of the present invention may be implemented in the form of a module, procedure, or function that performs the functions or operations described above. A computer program in which software codes and the like are recorded may be stored in a computer-readable recording medium or a memory unit and driven by a processor. The memory unit may be located inside or outside the processor, and may exchange data with the processor through various known means.

In addition, combinations of each block of the block diagram attached to the present invention and each step of the flowchart may be performed by computer program instructions. Since these computer program instructions can be mounted on the encoding processor of a general-purpose computer, special purpose computer or other programmable data processing equipment, the instructions executed by the encoding processor of the computer or other programmable data processing equipment are each block of the block diagram or Each step of the flow chart will create a means to perform the functions described. These computer program instructions can also be stored in computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular way, so that the computer-usable or computer-readable memory It is also possible to produce an article of manufacture in which the instructions stored in the block diagram contain instruction means for performing the functions described in each block or flow chart. Computer program instructions can also be mounted on a computer or other programmable data processing equipment, so that a series of operating steps are performed on a computer or other programmable data processing equipment to create a computer-executable process to create a computer or other programmable data processing equipment. It is also possible for the instructions to perform the processing equipment to provide steps for performing the functions described in each block of the block diagram and each step of the flowchart.

In addition, each block or each step may represent a module, segment, or part of code including one or more executable instructions for executing a specified logical function. It should also be noted that in some alternative embodiments, the functions mentioned in blocks or steps may occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially simultaneously, or the blocks or steps may sometimes be performed in the reverse order depending on the corresponding function.

As such, those skilled in the art to which the present invention pertains will be able to understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the embodiments described above are illustrative in all respects and should be understood as non-limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. .

Claims (1)

A vehicle number recognition unit 100 for recognizing a vehicle number through image recognition;
A charging order determination unit 200 for determining a charging order using an ultrasonic sensor;
A communication unit 300 for performing communication between the charger and the vehicle;
An electric vehicle determination unit 400 that determines whether or not an electric vehicle is based on a communication from the communication unit; And
Including a charging terminal connector 500 for automatically connecting the charging terminal by moving to the electric vehicle,
Mobile electric vehicle automatic charging system on the wall of parking lot.

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