KR102324779B1 - User authentication system - Google Patents

Abstract

The present invention relates to a user authentication system included in an item selling device for providing or selling a specific item to a user. The user authentication system comprises: a face photographing part for photographing the face of a user; an identification card photographing part for photographing the identification card of the user; a primary authentication part for determining whether to authenticate the user by comparing the photographed face image of the user and the face image on the identification card; a secondary authentication part for reading the personal information on the photographed identification card and comparing the same with user information provided from a public institution server to determine whether or not the identification card is authentic; and a control part for controlling the item selling device to provide or sell the specific item depending on the result of determination by the first authentication part and the second authentication part. A face and an identification card are photographed using two cameras respectively to compare a face on the identification card and an actual face in real time and the information of the identification card can be obtained using an OCR to determine whether a user is authentic and a user is an adult.

Description

Identity authentication system {USER AUTHENTICATION SYSTEM}

The present invention relates to an identity authentication system provided in an article selling device that provides or sells a specific article to a user.

In recent vending machines and unmanned stores, customers insert money such as coins or banknotes or use cards to sell various items such as beverages, food, cigarettes, magazines, and hygiene products. Products that can only be sold to adults (e.g., in an unmanned store where the customer enters and exits the store using only the customer authentication system without a vending machine or a clerk that allows customers to select and purchase products on their own and payment is completed using the unmanned payment system) , tobacco, alcoholic beverages, etc.), there was a difficulty in restricting the entry and sale of minors.

The conventional adult authentication system has a disadvantage in that when a customer purchases a product, the fingerprint information of the resident registration symptom must be separately stored, and whether the user's fingerprint information is identical or must be extracted from an external system.

Laid-open Patent Publication No. 10-2001-0015897 (published date: October 09, 2002) Registered Patent Publication No. 10-2209804 (Announcement date: 2021.01. 28)

An object of the embodiments of the present invention for improving the above-described problems is to provide an identity authentication system for controlling items or equipment that should not be sold or provided to others or minors through unattended identity (adult) authentication.

In order to achieve the above object, the identity authentication system according to an embodiment of the present invention is an identity authentication system provided in an article selling device that provides or sells a specific article to a user, and a face photographing unit for photographing the user's face ; ID card photographing unit for photographing the user's ID; a first authentication unit that compares the photographed face image of the user with the face image of the ID card to determine whether to authenticate the user; a secondary authentication unit that reads personal information of the photographed identification card and compares it with personal information provided from a public institution server to determine the authenticity of the identification card; and a control unit for controlling the product selling device to provide or sell the specific product according to a result of determination by the primary and secondary authentication units.

The secondary authentication unit determines whether an adult is authenticated by extracting date of birth information from the personal information of the photographed identification card, and the control unit determines whether the specific article is an article provided only for adults, according to the result of determining whether the adult is authenticated It is characterized in that it controls whether the product is provided or sold.

The second authentication unit is characterized in that it reads the personal information of the photographed identification card by an OCR reading algorithm.

The ID photographing unit checks the location information of the user's identification card before photographing, and the secondary authentication unit determines the character sharpness of the user's identification card after photographing based on the location information before photographing of the user ID card, and only when it is above the standard sharpness It is characterized in that the date of birth information is extracted.

The face photographing unit determines whether the user's face is a real human face before photographing, and the first authentication unit determines whether the user's face is a real human face, the photographed face image of the user and the face of the ID card It is characterized in that it is determined whether the identity is authenticated by comparing the images.

The identity authentication system according to an embodiment of the present invention captures a face and an ID card with two cameras, respectively, compares the face and real face of the ID card in real time, and obtains the ID information through OCR to determine the authenticity and whether the person is an adult can be judged.

In addition, an embodiment of the present invention provides a self-authentication system for controlling items or equipment that should not be sold or provided to others or minors through unattended self (adult) authentication, and stores data in any server device for comparison It is not a method to do this, but two real-time images can be compared and identity (adult) authentication can be performed efficiently.

1 is a block diagram schematically illustrating an identity authentication system according to an embodiment of the present invention.
2 is a flowchart illustrating the operation of the identity authentication system according to an embodiment of the present invention.
3 is a block diagram schematically illustrating a configuration of a battery management module included in the identity authentication system of FIG. 1 .

The present invention as described above will be described in detail with reference to the accompanying drawings and embodiments.

It should be noted that the technical terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be interpreted as meanings generally understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined in particular in the present invention, and excessively comprehensive It should not be construed in the meaning of a human being or in an excessively reduced meaning. In addition, when the technical term used in the present invention is an incorrect technical term that does not accurately express the spirit of the present invention, it should be understood by being replaced with a technical term that can be correctly understood by those skilled in the art. In addition, general terms used in the present invention should be interpreted as defined in advance or according to the context before and after, and should not be interpreted in an excessively reduced meaning.

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various elements or several steps described in the invention, some of which elements or some steps are included. It should be construed that it may not, or may further include additional components or steps.

In addition, terms including ordinal numbers such as first, second, etc. used in the present invention may be used to describe the components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, it should be noted that the accompanying drawings are only for easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the accompanying drawings.

In general, businesses such as convenience stores are legally prohibited from selling products such as alcohol and cigarettes to minors.

Therefore, when a customer who appears to be a minor asks for alcohol or cigarettes, it is now common for the seller to request the customer's ID and compare the photo presented on the ID with the actual customer's photo to determine whether the customer is a minor.

However, in the case of certain minors, the number of cases of buying alcohol or cigarettes by directly forging a photo or age of an ID card to deceive themselves into being a minor is increasing.

In this case, there may be differences due to the precision of counterfeiting, but in the case of general sellers, it is difficult to distinguish the fact of counterfeiting, and the cases in which the seller is punished by the alcohol or cigarettes sold in this way are also increasing.

This problem is frequently occurring in automatic devices such as vending machines.

In addition, in the case of industrial facilities or research institutes requiring security, the user's ID is registered in advance, and the user's face is matched with the ID photo to automatically control access.

In this case, since the user's photo included in the ID is a picture taken at the time of issuance of the ID, it may have a difference from the current user's face, which has changed due to aging, etc. over the years.

Therefore, when an old identification card is registered as an authentication method in advance, there is a problem in that a recognition error occurs due to a significant difference from the current user's face.

In order to solve the problems of the above-described situations, the present inventor's identity authentication system may be proposed.

FIG. 1 is a block diagram schematically showing an identity authentication system according to an embodiment of the present invention, FIG. 2 is a flowchart illustrating operation of the identity authentication system according to an embodiment of the present invention, and FIG. It is a block diagram schematically showing the configuration of a battery management module provided in the authentication system.

As shown in FIG. 1 , the identity authentication system according to an embodiment of the present invention is an identity authentication system provided in an article selling device 10 that provides or sells a specific article to a user, and uses two cameras to detect a face and It is a system that takes a picture of an ID, compares the face of the ID with the real face in real time, and obtains the ID information through OCR to determine the authenticity of the person and whether they are an adult.

To this end, the identity authentication system according to an embodiment of the present invention includes a face photographing unit 110 , an identification card photographing unit 120 , a primary authentication unit 130 , a secondary authentication unit 140 , and a control unit 150 . include

The identity authentication system according to the present invention is a device for performing adult or identity authentication by being installed in a device or place that requires adult authentication, such as equipment that should not be sold or provided to others or minors through unattended identity (adult) authentication. However, it is installed in stores selling alcoholic beverages or other adult products or adult establishments where access to minors is restricted, or installed in unmanned vending machines in use to perform adult authentication.

The face photographing unit 110 is a camera device for photographing a user's face. Before photographing the user's face, the face photographing unit 110 determines whether the user's face is a real person's face. It is transmitted to the authentication unit 130 .

When the user's face photographed by the face photographing unit 110 is a real human face, the primary authentication unit 130 compares the photographed user's face image with the face image of the ID to determine whether to authenticate the user. . To this end, the first authentication unit 130 receives ID face information photographed in advance from the ID card photographing unit 120 .

The primary authentication unit 130 uses a pre-installed similarity algorithm to compare the photographed face image of the user with the face image of the ID.

The similarity algorithm may generate similarity information by comparing the ID photo information collected from the ID card photographing unit 120 with the user's face image information collected from the face photographing unit 110 .

The similarity information may be information indicating a degree of similarity between the user's face image information on the identification card and the user's face image information collected in real time.

A method of calculating similarity information will be described as an example.

First, the primary authentication unit 130 selects reference image information, which is identification photo information, from the identification card photographing unit 120 as the first representative face image information.

The first authentication unit 130 may compare the face image information captured by the face photographing unit 110 with the first representative face image information and facial feature points. If the reference value of the similarity determination is 95% and the similarity information between the face image information and the first representative face image information is 95% or more, the first authentication unit 130 may determine that the first authentication has been passed.

In this case, the first authentication unit 130 may reflect the photographing time information regarding the time at which the first representative face image information was photographed when generating the similarity information. For example, when the similarity information of the first representative face image information is 94% and the photographing time information is one year, the first authentication may fail only with the similarity information. However, by giving an advantage according to the shooting time, an additional point of 1% can be given for every hour of the year. Accordingly, since the shooting time information of the first representative face image is 1 year ago, an additional point is given according to this to obtain a total similarity information of 95%, and the control unit 150 can determine that the first authentication has been passed. have.

The identification card photographing unit 120 is a camera device for photographing the user's identification card, and checks the location information of the user's identification card before photographing, that is, checks whether the identification card is in the photographing position, and then photographs the identification. In this case, the ID card photographing unit 120 transmits the image information of the photographed ID to the primary authentication unit 130 and the secondary authentication unit 140 .

In addition, the ID card photographing unit 120 separately extracts the face image information of the ID card and ID name and date of birth information from the photographed ID image information and transmits it to the primary authentication unit 130 and the secondary authentication unit 140 . may be In this case, the ID image information may include ID text information and ID face information. The text information of the ID card may be generated by recognizing the text related to the issuance date, name, address, resident registration number, etc. displayed on the ID card by an optical character reader (OCR). In this case, ID image information and ID text information are stored in a memory (not shown), respectively.

The secondary authentication unit 140 reads the personal information of the ID photographed by the ID card photographing unit 120 (ie, ID name and date of birth information) and compares it with the personal information provided from the public institution server 30 to verify the authenticity of the ID. It is a device for judging whether

In this case, the public institution server 30 is a database server of an administrative agency that stores the personal information of Korean citizens, and may be a database server of a company that is delegated by the administrative agency to perform the personal data management of the people.

In addition, the secondary authentication unit 140 determines whether an adult is authenticated by extracting date of birth information from the personal information of the ID photographed by the identification card photographing unit 120 , and causes the controller 150 to determine whether a specific article is only for adults. In the case of a provided product, it is possible to control whether the product is provided or sold according to the result of determining whether the adult is authenticated. In addition, the secondary authentication unit 140 uses the public information provided by the public institution server 30 to determine the authenticity of the ID, and if the ID is found to be counterfeit or fake, the age is determined only by the acquired date of birth information. You can determine whether you are an adult.

At this time, the secondary authentication unit 140 reads the personal information of the identification card photographed by the identification card photographing unit 120 using an optical character reader (OCR) reading algorithm.

In addition, the secondary authentication unit 140 determines the character sharpness of the user's ID card after shooting based on the location information of the user's ID card before shooting, and extracts the date of birth information only when it is equal to or greater than the standard sharpness.

In the present invention, the primary authentication unit 130 and the secondary authentication unit 140 compare and determine the two video streams photographed through the face photographing unit 110 and the identification card photographing unit 120 . Since the comparison procedure is performed directly on the memory without storing each image or image, there is an advantage in that the user's personal information can be compared without saving.

The control unit 150 is a device for controlling the product selling device 10 to provide or sell a specific product according to the determination result by the primary authentication unit 130 and the secondary authentication unit 140 . The control unit 150 is a device that controls and manages each component of the identity authentication system, and recognizes and drives hardware devices such as a typical central processing unit (CPU), RAM (RAM), and ROM (ROM) and the hardware devices. Software is provided to control the overall operation.

More specifically, as shown in FIG. 2 , the controller 150 collects user image information, which is a real-time image of a user, when product purchase request information is received from a user input interface unit (not shown) or an external terminal. It is possible to control the photographing unit 110 and the identification card photographing unit 120 .

First, the control unit 150 checks whether or not the identification card is in the identification card photographing unit 120, photographing the identification card, extracting identification card face image information, identification identification name and date of birth information, and storing it in the memory. Then, the control unit 150 checks the clarity of the letters of the date of birth through the identification card photographing unit 120 or the secondary authentication unit 140 to confirm whether the person is an adult by date of birth.

In addition, when it is confirmed whether the control unit 150 is an adult, the user's real face image or video is captured through the face photographing unit 110, and whether the user's face image or video is a real human face, Whether it is a simple image is determined through the face photographing unit 110 or the primary authentication unit 130 .

In addition, the control unit 150 determines and authenticates the similarity between the face image of the ID and the actual face image through the primary authentication unit 130 to perform an adult or self-authentication procedure.

Furthermore, the control unit 150 may finally provide an additional authentication procedure through the mobile terminal possessed by the user.

In addition, in the identity authentication system according to an embodiment of the present invention, a battery module ( 200) may be further included.

As shown in FIG. 3 , the battery module 200 is a module connected to the battery unit 280 including a plurality of cells, and charges the battery unit 280 with commercial power supplied to a load facility, When the occurrence is detected, the battery unit 280 is discharged to supply power to the load equipment, and when the temperature of the battery unit 280 is less than a preset temperature or the voltage difference between cells is greater than a preset value, cell balancing is performed. .

The battery unit 280 may include a plurality of battery cells (not shown), and each battery cell may be connected in a suitable form for supplying AMI backup power in series, parallel, or a series/parallel mixed method.

The battery cell may include a lithium iron phosphate (LiFePO ₄ ) secondary battery. These lithium iron phosphate (LiFePO ₄ ) secondary batteries can be recharged more than 1,000 times even after discharging up to 90% of their total capacity, and have a lifespan three times longer than that of conventional lead-acid batteries, and even after charging and discharging more than 1,000 times, more than 80% of the existing capacity it is possible to maintain Conventional lithium ion and lithium polymer batteries may cause rapid temperature rise and explosion during overcharging and overdischarging, but lithium iron phosphate batteries do not explode during overdischarge and overcharge and are relatively safe as they are only damaged internally. .

The battery module 200 charges the battery unit 280 with commercial power supplied to the load facility, discharges the battery unit 280 when a power failure is detected to supply power to the load facility, and the battery unit 280 Cell balancing is performed when the temperature of the cell is less than or equal to a preset temperature or when the voltage difference between cells is greater than or equal to a preset value.

To this end, the battery module 200 includes a switch unit 210, a converter 220, an inverter 230, a temperature sensor 240, a cell balancing circuit unit 250, and a cell voltage difference measuring unit as shown in FIG. 260 ) and a battery control unit 270 .

The switch unit 210 receives the external commercial power or power from the battery unit 280 and transmits it to the load facility. The switch unit 210 operates to transmit external commercial power to the load equipment according to the first control signal of the battery control unit 270 or the inverter 230 according to the second control signal of the battery control unit 270 when a power failure occurs. ) through which the AC power supplied from the battery unit 280 is connected to the load facility.

The converter 220 receives some power from external commercial power under the control of the battery control unit 270 , converts it into direct current, and then transmits it to the battery unit 280 so that the battery unit 280 is charged.

The inverter 230 converts the DC power supplied from the battery unit 280 into AC and transmits the switch unit 210 , and loads the AC power supplied from the battery unit 280 through the switch unit 210 . It plays a role as a means of conversion and mediation provided by the facility.

The temperature sensor 240 may measure the internal temperature of the battery unit 280 , and a measurement temperature range of -30°C to 80°C is suitable, but a specific temperature range is not limited thereto.

The cell balancing circuit unit 250 performs cell balancing of the battery unit 280 . The cell balancing circuit unit 250 may be implemented to operate in at least one of a passive method and an active method. Here, the passive type is a method of balancing the battery cells by consuming the charge of the overcharged battery cell through individual resistors, and the active type is a method of supplying more current to the undercharged battery cells with an individual charger to provide more current between the battery cells. A way to balance the When using a battery with a relatively small capacity, such as a surveillance camera system, it is preferable to adopt a passive method, and in particular, heat generated through power consumption using individual resistors is removed from the inside of the battery unit 280 at approximately -20°C. Since it is suitable for raising the temperature, it is more preferable to adopt a passive method.

The cell voltage difference measuring unit 260 measures a voltage difference between each cell of the battery unit 280 , and transmits the measured voltage difference value to the battery control unit 270 .

The battery control unit 270 controls the converter 220 to charge the DC power converted through the converter 220 in the battery unit 280, and when a power outage occurs, the DC power charged in the battery unit 280 is supplied. The inverter 230 is controlled to transmit the inverter 230 to the switch unit 210 , and the switch unit 210 is controlled to transmit AC power provided through the inverter 230 to the load equipment.

When the measured temperature value of the temperature sensor 240 is less than or equal to a preset reference temperature value, or when the measured voltage difference of the cell voltage difference measuring unit 260 is greater than or equal to a preset reference voltage difference, the cell balancing circuit unit ( 250) controls to perform a cell balancing operation.

To this end, the battery control unit 270 operates in a low-temperature mode for a pre-stored period, and compares the measured temperature value received from the temperature sensor 240 with a preset reference temperature value (approximately -20°C) during the low-temperature mode operation. If the measured temperature value is less than or equal to the reference temperature value, by controlling the cell balancing circuit unit 250 so that the cell balancing operation of the cell balancing circuit unit 250 is forcibly performed, due to heat generated by the cell balancing operation of the cell balancing circuit unit 250 The internal temperature of the battery unit 280 is raised to approximately 0° C. so that the battery module 200 operates normally.

In addition, the battery control unit 270 compares the measured temperature value received from the temperature sensor 240 with a preset reference temperature value (approximately -20°C), and when the measured temperature value exceeds the reference temperature value, the cell voltage difference After obtaining the measured voltage difference by controlling the measuring unit 250 to operate, the obtained measured voltage difference and a preset reference voltage difference (approximately 30 mV) are compared and if the measured voltage difference is equal to or greater than the reference voltage difference, the cell balancing circuit unit 250 ) by controlling the cell balancing circuit unit 250 so that the cell balancing operation of the cell balancing circuit unit 250 is forcibly performed, the internal temperature of the battery unit 280 due to the heat generated by the cell balancing operation of the cell balancing circuit unit 250 is raised to approximately 0 ° C. The battery module 200 operates normally.

In addition, as a result of comparison between the measured voltage difference received from the cell voltage difference measuring unit 250 and a preset reference voltage difference (approximately 30 mV), the battery control unit 270 is configured to determine if the measured voltage difference is less than the reference voltage difference for a preset time ( After approximately 1 to 2 hours), the low-temperature mode operation can be resumed.

In the above, preferred embodiments according to the present invention have been shown and described. However, the present invention is not limited to the above-described embodiments, and without departing from the gist of the present invention appended in the claims, anyone with ordinary skill in the art to which the invention pertains will be able to implement various modifications. .

10: goods selling device 30: public institution server
110: face photographing unit 120: ID photographing unit
130: primary authentication unit 140: secondary authentication unit
150: control unit

Claims (5)

It is an identity authentication system provided in a product selling device that provides or sells a specific product to a user,
a face photographing unit for photographing the user's face;
ID card photographing unit for photographing the user's ID;
a first authentication unit that compares the photographed face image of the user with the face image of the ID card to determine whether to authenticate the user;
a secondary authentication unit that reads personal information of the photographed identification card and compares it with personal information provided from a public institution server to determine the authenticity of the identification card; and
a control unit for controlling the product selling device to provide or sell the specific product according to a result of determination by the primary and secondary authentication unit;
The secondary authentication unit determines whether an adult is authenticated by extracting the date of birth information from the personal information of the photographed ID,
If the specific item is an item provided only for adults, the control unit controls whether the item is provided or sold according to a result of determining whether the adult is authenticated,
The identification photographing unit checks the location information before photographing the identification of the user,
The secondary authentication unit extracts the date of birth information only when it is above the standard sharpness by determining the character sharpness of the user's ID card after shooting based on the location information before the shooting of the user's ID card,
Further comprising a battery module for supplying driving power to the product sales device through the control of the control unit,
The battery module charges the battery unit (the battery unit includes a plurality of battery cells) with commercial power supplied to the product selling device, and discharges the battery unit when a power failure is detected to supply power to the product selling device, , when the temperature of the battery part is below a preset temperature or when the voltage difference between cells is greater than or equal to a preset value, cell balancing is performed,
a switch unit that receives power from an external commercial power source or a battery unit and transmits it to the product sales device;
a converter that receives some power from external commercial power under the control of the battery control unit, converts it into direct current, and transmits it to the battery unit so that the battery unit is charged;
an inverter that converts DC power supplied from the battery unit into AC, transmits the switch unit, and provides AC power supplied from the battery unit through the switch unit to the product sales device;
a temperature sensor for measuring the internal temperature of the battery unit;
a cell balancing circuit unit configured to perform cell balancing of the battery unit, and to operate in at least one of a passive type and an active type;
a cell voltage difference measuring unit for measuring a voltage difference between cells of the battery unit, respectively, and transmitting the measured voltage difference value to the battery control unit; and
Controls the converter to charge the DC power converted through the converter to the battery unit, controls the inverter to deliver the DC power charged to the battery unit to the switch unit through the inverter in case of a power outage, and controls the AC power provided through the inverter. The switch unit is controlled to be transmitted to the product selling device, and when the measured temperature value of the temperature sensor is less than or equal to a preset reference temperature value, or when the voltage difference measured by the cell voltage difference measuring unit is greater than or equal to the preset reference voltage difference, the cell balancing circuit unit performs a cell balancing operation Identity authentication system, characterized in that it comprises a battery control unit to control to perform.
delete According to claim 1,
The secondary authentication unit self-authentication system, characterized in that for reading the personal information of the photographed ID card by the OCR reading algorithm.
delete According to claim 1,
The face photographing unit determines whether the user's face is a real person's face before photographing,
The first authentication unit, when the user's face is a real human face, compares the photographed face image of the user with the face image of the ID card to determine whether to authenticate the user.

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