KR20220142868A - Counterfeit license plate identification system using car characteristic information - Google Patents

Abstract

The present invention relates to a counterfeit license plate identification system using vehicle property information which analyzes a variety of information of a vehicle to distinguish a counterfeit license plate number, notifies a manager of a counterfeit license plate, and notifies a related government office of the counterfeit license plate to prevent harm caused by the use of the counterfeit license plate. The counterfeit license plate identification system using vehicle property information comprises: a license plate mounted at a set position of a vehicle; and a counterfeit license plate identification device photographing the license plate and the vehicle to acquire license plate information and vehicle image information, and distinguishing whether the license plate is a counterfeit license plate based on the license plate information and the vehicle image information. The counterfeit license plate identification device accurately distinguishes a counterfeit license plate by using color, emblem, and vehicle shape information of a vehicle.

Description

Counterfeit license plate identification system using car characteristic information

The present invention relates to a counterfeit license plate identification system, in particular, by analyzing various information of a vehicle to determine a counterfeit license plate in real time, and in the case of a counterfeit license plate, notify the manager and notify the relevant government office at the same time to use the counterfeit license plate It relates to a counterfeit license plate identification system using vehicle characteristic information to prevent damage in advance.

Recent parking lots mainly use a parking control system for parking control, and such a parking control system includes a loop coil to check the presence or absence of an entering vehicle, a parking breaker to control entering/exiting vehicles, and vehicles entering and exiting the parking lot. It consists of a vehicle number recognizer (LPR) that recognizes the vehicle number of entering/exiting vehicles and an unmanned settling machine that is a parking fee adjuster that settles the parking fee of an exiting vehicle using the recognized vehicle number and entry/exit time. .

Recent parking control systems are mostly unmanned unmanned parking control systems.

As a method of recognizing a vehicle entering or exiting a parking lot, a vehicle number recognizer (LPR) is mainly used as described above. method is mainly used.

Here, the vehicle license plate is an information plate in which a registration identifier consisting of a number, letter, and number combination is displayed on a metal or plastic plate of a certain width, and is used to identify a vehicle in a local database.

As is well known, as a method of recognizing a vehicle for vehicle identification or parking control, a method of photographing a vehicle license plate and recognizing a license plate using a license plate recognition algorithm is used. , it is difficult to determine whether the corresponding license plate is forged.

In recent years, there have been frequent errors in recognizing a crude forged license plate made of thick paper as an actual license plate. cause

In addition, even when recognizing a parked or stopped illegal vehicle or a criminal vehicle, the method of photographing the license plate as described above and recognizing the vehicle number using the license plate recognition algorithm is used. The damage can be huge, which can cause bigger social problems other than paying parking fees.

On the other hand, the conventionally proposed technology for vehicle number recognition is disclosed in the following <Patent Document 1>.

The prior art disclosed in <Patent Document 1> is easy to maintain and manage because the administrator can control the test of the corresponding photographing device through the smartphone after obtaining authentication from the control center using a smartphone, etc. in the vicinity of the corresponding photographing device A vehicle number reading system is provided.

This prior art also uses a method of recognizing a vehicle for vehicle identification or parking control, photographing a license plate, and recognizing the license plate using a license plate recognition algorithm, so it is impossible to determine whether the license plate is forged. There is this.

Republic of Korea Patent Registration 10-1512018 (Registered on Aug. 8, 2015) (Vehicle Number Reading System)

Therefore, the present invention has been proposed to solve the problem that can not determine the counterfeit license plate in the general license plate recognition algorithm as described above and various problems that occur in the prior art. The purpose of this is to provide a counterfeit license plate identification system using vehicle characteristic information that identifies and informs the manager if it is a counterfeit license plate and at the same time notifies the relevant government office to prevent damage caused by the use of the counterfeit license plate. have.

Another object of the present invention is to accurately identify counterfeit license plates in real time to prevent counterfeiting of license plates and to prevent social problems caused by counterfeiting of license plates in advance. will provide

In order to achieve the above object, "a counterfeit license plate identification system using vehicle characteristic information" according to the present invention,

a license plate mounted in a set position on the vehicle;

and a counterfeit license plate identification device for acquiring license plate information and vehicle image information by photographing the license plate and vehicle, and determining whether the license plate is forged based on the license plate information and vehicle image information.

In addition, the "counterfeit license plate identification system" according to the present invention,

a vehicle registration server in connection with the counterfeit license plate identification device and providing information of a registered vehicle to the counterfeit license plate identification device;

It characterized in that it further comprises a manager terminal for receiving the counterfeit license plate information generated from the counterfeit license plate identification device.

In the above, the counterfeit license plate identification device is characterized in that when it is determined that the vehicle license plate is forged, the vehicle license plate forgery information is transmitted to the associated government server.

The counterfeit license plate identification device in the above,

a photographing unit for outputting license plate information and vehicle image information by photographing the vehicle license plate and vehicle;

a license plate recognition unit for recognizing the license plate information output from the photographing unit by a license plate recognition algorithm and outputting the license plate information; and

It is determined whether the vehicle license plate is forged based on the license plate information recognized by the license plate recognition unit and the vehicle image information output from the photographing unit, and a warning alarm and counterfeit license plate information are output when the counterfeit license plate is determined. It is characterized by including wealth.

The counterfeit license plate identification device in the above,

an alarm unit for generating an alarm for the counterfeit license plate according to the warning alarm generated by the counterfeit license plate discrimination unit; and

It characterized in that it further comprises a communication module for transmitting the counterfeit license plate information generated in the counterfeit license plate discrimination unit to the associated government server or manager terminal.

In the above, the counterfeit license plate discrimination unit,

a vehicle information input unit for receiving the license plate information output from the license plate recognition unit and vehicle image information output from the photographing unit as vehicle information and storing it in a database;

a vehicle color extraction unit for extracting a color displacement by separating the vehicle image information into a color spectrum, and extracting a vehicle color by matching the extracted color displacement with a measurement range;

an emblem extracting unit for extracting an emblem of a specific location from the vehicle image information;

a vehicle shape extraction unit configured to shape the exterior of a vehicle through an outline extraction technique from the vehicle image information;

Acquire vehicle information corresponding to the recognized license plate information from the vehicle registration server based on the license plate information, and compare the obtained vehicle information with the output information of the vehicle color extraction unit, the emblem extraction unit, and the vehicle shape extraction unit to counterfeit the license plate License plate verification unit to verify the presence or absence; and

When the result of the license plate verification information verified by the license plate verification unit is determined to be a counterfeit license plate, it is characterized in that it comprises a control unit for controlling the generation of an alarm for the counterfeit license plate and the transmission of the counterfeit license plate information.

In the above, the license plate verification unit,

Vehicle color information, emblem information and vehicle shape information are obtained from the obtained vehicle information, and the vehicle color information, emblem information and vehicle shape information obtained are extracted from the vehicle color extraction unit and the emblem extracted from the vehicle color extraction unit. and comparing the vehicle shape information extracted by the vehicle shape extracting unit to one-to-one matching with some or all of the vehicle shape information to determine the counterfeit license plate.

According to the present invention, a counterfeit license plate is determined in real time by analyzing various information of the vehicle, and if it is a counterfeit license plate, it is notified to the manager and at the same time notified to the relevant government office to prevent damage caused by the use of the counterfeit license plate in advance. It works.

In addition, according to the present invention, by accurately identifying counterfeit license plates in real time, it is possible to prevent counterfeiting of license plates, thereby preventing social problems caused by counterfeiting of license plates in advance.

1 is a schematic configuration diagram of a parking control system to which a counterfeit license plate identification system using vehicle characteristic information according to the present invention is applied;
2 is a block diagram showing an embodiment of a forged license plate identification system using vehicle characteristic information according to the present invention.

Hereinafter, a counterfeit license plate identification system using vehicle characteristic information according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present invention described below should not be construed as being limited to conventional or dictionary meanings, and the inventor may appropriately define the concept of terms in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents and It should be understood that there may be variations.

1 is a schematic configuration diagram of a parking control system to which a counterfeit license plate identification system using vehicle characteristic information according to a preferred embodiment of the present invention is applied. It may include a vehicle license plate mounted on the (2), counterfeit license plate identification device (100).

Additionally, the counterfeit license plate identification system using vehicle characteristic information according to the present invention may further include an exit breaker 200, a vehicle registration server 300, a government office server 400, and a manager terminal 500. have.

1 is an example of applying the forged license plate identification system using vehicle characteristic information according to the present invention to the parking control system, but the present invention is not limited thereto. It will be apparent to those of ordinary skill in the art that it can be adopted and applied as it is without being limited to a place or location.

For example, the present invention provides a parking control system, as well as a vehicle information acquisition system for acquiring vehicle traffic or other traffic information, a parking and stopping enforcement system for cracking down on parking and stopping violations, and a traffic police vehicle system for tracking traffic violations and criminal vehicles. It can be adopted and applied as it is.

Although the exit breaker 200 serves to control vehicles advancing from the parking lot, it is not an essential element in the present invention, and is simply one of the schematic components of the parking control system, and a detailed description thereof will be omitted.

It is assumed that the license plate 2 is mounted at a set position of the vehicle 1, and the size, color, and form of identification information are predetermined in the Automobile Management Act or the vehicle registration office.

The counterfeit license plate identification device 100 acquires license plate information and vehicle image information by photographing the license plate 2 and the vehicle 1, and determines whether the license plate is forged based on the license plate information and vehicle image information. plays a role in discriminating.

If such a counterfeit license plate identification device 100 is determined to be a forgery of the license plate 2, it may transmit the counterfeit license plate information to the associated government server 400.

As shown in FIG. 2, the counterfeit license plate identification device 100 includes a photographing unit 104 for photographing the vehicle license plate 2 and the vehicle 1 and outputting license plate information and vehicle image information, the photographing unit The vehicle output from the license plate recognition unit 105 and the license plate recognition unit 105 and the photographing unit 104 for recognizing the license plate information output in 104 and outputting the license plate information by recognizing the license plate information It determines whether the vehicle license plate is forged based on the image information, and includes a counterfeit license plate discrimination unit 110 that outputs a warning alarm and counterfeit license plate information when determining the counterfeit license plate.

In addition, the counterfeit license plate identification device 100 includes an alarm unit 107 and the counterfeit license plate identification unit 110 that generate an alarm for a counterfeit license plate according to a warning alarm generated by the counterfeit license plate identification unit 110. It may further include a communication module 108 for transmitting the counterfeit license plate information generated in the public office server 400 or the manager terminal 500 linked.

The counterfeit license plate discrimination unit 110 receives the license plate information output from the license plate recognition unit 105 and the vehicle image information output from the photographing unit 104 as vehicle information and stores it in the database 106 . Input unit 111, vehicle color extraction unit 112 that extracts color displacement by separating the vehicle image information into color spectrum, and extracts vehicle color by matching the extracted color displacement with a measurement range, from the vehicle image information From the emblem extraction unit 113 for extracting the emblem of a specific location, the vehicle shape extraction unit 114 for shaping the vehicle exterior through the outline extraction technique from the vehicle image information, the vehicle registration server 300 based on the license plate information Acquire vehicle information corresponding to the recognized license plate information, and compare the obtained vehicle information with the output information of the vehicle color extraction unit 112, the emblem extraction unit 113, and the vehicle shape extraction unit 114 to counterfeit the license plate When the license plate verification unit 115 that verifies the presence or absence and the license plate verification information verified by the license plate verification unit 115 is determined to be a counterfeit license plate, an alarm is generated for the counterfeit license plate and a control unit that controls the transmission of counterfeit license plate information ( 116).

The license plate verification unit 115 obtains vehicle color information, emblem information and vehicle shape information from the obtained vehicle information, and extracts the obtained vehicle color information, emblem information, and vehicle shape information from the vehicle color extraction unit 112. A counterfeit license plate is determined by comparing the extracted vehicle color with the emblem extracted by the emblem extraction unit 113 and the vehicle shape information extracted by the vehicle shape extraction unit 114 in a one-to-one matching in part or all.

The vehicle registration server 300 serves to link with the counterfeit license plate identification device 100 and provide registered vehicle information to the counterfeit license plate identification device 100 . Here, the vehicle information may include vehicle license plate information, color information, emblem information, and vehicle age shape information.

The manager terminal 500 serves to receive the forged license plate information generated from the counterfeit license plate identification device 100, and is a mobile device carried by an administrator who manages parking of the parking control system, or management and supervision of the vehicle. It may be a mobile device carried by an administrator.

The public office server 400 refers to a server of a management agency that manages and supervises counterfeit license plates.

The operation of the counterfeit license plate identification system according to the present invention configured as described above will be described in detail as follows.

First, when the vehicle 1 approaches the photographing location, the photographing unit 104 of the counterfeit license plate identification device 100 photographs the vehicle 1, and the image information of the photographed vehicle is captured by the license plate recognition unit 105 and It is transmitted to the counterfeit license plate discrimination unit 110 . Here, the photographing unit 104 may use a camera such as a conventional CCTV camera.

The license plate recognition unit 105 extracts license plate information from the image information of the vehicle output from the photographing unit 104, recognizes the license plate with a normal license plate recognition algorithm, and transfers the license plate information to the counterfeit license plate identification unit 110. transmit Here, the license plate recognition algorithm may use a variety of known license plate recognition algorithms, for example, may use a text recognition algorithm. Similarly, extracting license plate information from vehicle image information may also use a known known license plate extraction algorithm.

The counterfeit license plate determining unit 110 determines whether the vehicle license plate is forged based on the license plate information (vehicle number) recognized by the license plate recognition unit 105 and the vehicle image information output from the photographing unit 104, , a warning alarm and counterfeit license plate information are output when a counterfeit license plate is identified.

For example, the vehicle information input unit 111 receives the license plate information output from the license plate recognition unit 105 and the vehicle image information output from the photographing unit 104 as vehicle information and stores it in the database 106 .

In addition, the vehicle color extraction unit 112 extracts a vehicle color based on vehicle image information stored in the database 106 . That is, the vehicle color may be extracted using pixel color information of the vehicle image color. In addition, when only pixel color information is used, vehicle colors appear or are measured differently on the camera depending on the amount of light (day and night). Therefore, there is a fear that the method using pixel color information may lack accuracy depending on the amount of light. To compensate for this, the vehicle image is separated into color spectrum to extract the displacement of the color, match the displacement of the extracted color with the measurement range to extract vehicle color information, and the extracted vehicle color information is to the license plate verification unit 115. transmit

In addition, the emblem extraction unit 113 extracts an emblem at a specific location from the vehicle image information stored in the database 106 . Here, the emblem means a symbol of a car company or a symbol of a car brand. The mounting location may be different for each car company, but most manufacturers install it on the radiator grill, on the radiator, or on the trunk lid. Objects are extracted from the vehicle image through outline extraction or other object extraction techniques, the location of the vehicle image is set based on the emblem mounting location information, and the extracted object is determined as the emblem based on the set vehicle location information. Next, the emblem information is extracted by comparing it with the emblem information of all vehicles registered in the database 106 . The emblem information extracted in this way is transmitted to the license plate verification unit 115 .

In addition, the vehicle shape extraction unit 114 shapes the vehicle shape through an outline extraction technique from the vehicle image information stored in the database 106 , and transmits the shaped vehicle shape information to the license plate verification unit 115 . Since extracting the outline of an object using a technique such as outline extraction from an image is a known image data processing technique for processing an object from a video image among image data processing techniques, a detailed description thereof will be omitted.

Next, the license plate verification unit 115 acquires vehicle information corresponding to the recognized license plate information in connection with the vehicle registration server 300 based on the license plate information stored in the database 106 . Here, it is assumed that color information, emblem information, and vehicle shape information of all vehicles registered in the license plate in advance are registered in the vehicle registration server 300 .

The license plate verification unit 115 compares the vehicle information obtained through the vehicle registration server 300 with the output information of the vehicle color extraction unit 112 , the emblem extraction unit 113 and the vehicle shape extraction unit 114 . to verify whether the license plate is forged or not. And transmits the license plate forgery verification result to the control unit (116).

For example, the license plate verification unit 115 compares the vehicle color information extracted from the acquired vehicle information and the vehicle color extracted by the vehicle color extraction unit 112 to see whether they match, or the emblem information extracted from the vehicle information and the emblem extraction unit ( 113) by comparing the extracted emblems to determine whether they match or whether or not the vehicle shape information extracted from the vehicle information is compared with the vehicle shape information extracted from the vehicle shape extraction unit 114 to determine the counterfeit license plate using the match. Here, it can be determined whether each match is consistent when the degree of agreement is 95% or more. This is to accurately determine a counterfeit license plate even when a part of the vehicle color is faded, a part of the emblem is damaged, or a part of the shape of the vehicle is not accurately extracted due to a vehicle accident or the like. That is, if the degree of matching of the vehicle color is 95% or more, it is determined to match, if the degree of agreement of the emblem is 95% or more, it is determined to match, and if the degree of agreement of the vehicle shape is 95% or more, the vehicle shape is determined to match. In fact, it is possible to determine whether the license plate is forged using only one of the vehicle color, emblem, and vehicle shape. In order to more accurately verify the presence or absence of forgery of the license plate, it is preferable to use all three determining factors.

The license plate verification unit 115 verifies the license plate verification element as described above, and if any one of the three identification factors is less than 95% consistent, it is determined as a counterfeit license plate. That is, if any one of the color, emblem, and vehicle shape obtained from the vehicle is different from the vehicle information of the registered license plate, it is determined that the license plate is forged.

If it is determined that the license plate is forged, the counterfeit license plate information is transmitted to the control unit 116 .

When the result of the license plate verification information verified by the license plate verification unit 115 is determined to be a counterfeit license plate, the control unit 116 controls the generation of an alarm for the counterfeit license plate and transmission of the counterfeit license plate information.

That is, when the control unit 116 is determined to be a counterfeit license plate, it transmits a warning alarm control signal to the alarm unit 107 to generate an alert for the counterfeit license plate. The alarm unit 107 generates an alarm according to the transmitted warning alarm control signal, and informs the surroundings that the license plate of the corresponding vehicle is forged. As a result, the parking control system recognizes this and takes prompt action to prevent damage caused by counterfeit license plates in advance.

In addition, if the control unit 116 is determined to be a forged license plate, it generates counterfeit license plate information, and transmits the counterfeit license plate information through the communication module 108 to the linked government office server 400 or the manager terminal 500. .

When the manager confirms the counterfeit license plate information through the manager terminal 500, he takes action quickly to prevent damage caused by the counterfeit license plate in advance.

In addition, the government server 400, upon receiving the counterfeit license plate information, promptly takes follow-up measures to track and arrest the user who uses the counterfeit license plate.

As such, the present invention can accurately determine the presence or absence of a counterfeit license plate based on vehicle color, emblem, and vehicle shape information, thereby preventing damage due to the use of counterfeit license plate in advance and fundamentally preventing the use of counterfeit license plate itself. can do.

Although the invention made by the present inventor has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment and it is common knowledge in the art that various changes can be made without departing from the gist of the present invention. self-evident to those who have

1: vehicle
2: License plate
10: Ireland
100: counterfeit license plate identification device
104: filming department
105: license plate recognition unit
106: database
107: alarm unit
108: communication module
110: counterfeit license plate discrimination unit
111: vehicle information input unit
112: vehicle color extraction unit
113: emblem extraction unit
114: vehicle shape extraction unit
115: license plate verification unit
116: control unit
200: exit breaker
300: vehicle registration server
400: government office server
500: administrator terminal

Claims (6)

A system for identifying counterfeit license plates, comprising:
a license plate mounted in a set position on the vehicle; and
A counterfeit license plate identification device for acquiring license plate information and vehicle image information by photographing the vehicle license plate and the vehicle, and determining whether the vehicle license plate is forged based on the license plate information and vehicle image information, characterized in that it comprises a Fake license plate identification system using vehicle characteristic information.
The method according to claim 1, In connection with the counterfeit license plate identification device, the vehicle registration server for providing information of the registered vehicle to the counterfeit license plate identification device; and
Counterfeit license plate identification system using vehicle characteristic information, characterized in that it further comprises a manager terminal for receiving the counterfeit license plate information generated from the counterfeit license plate identification device.
The method according to claim 1, further comprising a government office server that manages and supervises forgery of the vehicle license plate, wherein the counterfeit license plate identification device is determined to be a forgery of the vehicle license plate, the vehicle license plate forgery information is transmitted to the linked public office server, characterized in that Fake license plate identification system using vehicle characteristic information.
The method according to claim 1, The counterfeit license plate identification device,
a photographing unit for outputting license plate information and vehicle image information by photographing the vehicle license plate and vehicle;
a license plate recognition unit for recognizing the license plate information output from the photographing unit by a license plate recognition algorithm and outputting the license plate information; and
It is determined whether the vehicle license plate is forged based on the license plate information recognized by the license plate recognition unit and the vehicle image information output from the photographing unit, and a warning alarm and counterfeit license plate information are output when the counterfeit license plate is determined. Counterfeit license plate identification system using vehicle characteristic information, characterized in that it includes a part.
The method according to claim 4, The counterfeit license plate discrimination unit,
a vehicle information input unit for receiving the license plate information output from the license plate recognition unit and vehicle image information output from the photographing unit as vehicle information and storing it in a database;
a vehicle color extraction unit for extracting a color displacement by separating the vehicle image information into a color spectrum, and extracting a vehicle color by matching the extracted color displacement with a measurement range;
an emblem extracting unit for extracting an emblem of a specific location from the vehicle image information;
a vehicle shape extraction unit configured to shape the exterior of a vehicle through an outline extraction technique from the vehicle image information;
Acquire vehicle information corresponding to the recognized license plate information from the vehicle registration server based on the license plate information, and compare the obtained vehicle information with the output information of the vehicle color extraction unit, the emblem extraction unit, and the vehicle shape extraction unit to counterfeit the license plate a license plate verification unit to verify the presence or absence; and
A counterfeit vehicle using vehicle characteristic information, characterized in that it comprises a control unit for controlling the generation of an alarm for the counterfeit license plate and transmission of the counterfeit license plate information when it is determined as a counterfeit license plate when the license plate verification information verified by the license plate verification unit License plate identification system.
The method according to claim 5, The license plate verification unit,
Vehicle color information, emblem information and vehicle shape information are obtained from the obtained vehicle information, and the vehicle color information, emblem information and vehicle shape information obtained are extracted from the vehicle color extraction unit and the emblem extracted from the vehicle color extraction unit. and a counterfeit license plate identification system using vehicle characteristic information, characterized in that the vehicle shape information extracted from the vehicle shape extraction unit is compared to one-to-one matching in part or all to determine the counterfeit license plate.

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