KR20190136178A - System and method for controlling a door based on biometric recognition - Google Patents

Abstract

The present invention is suggested to solve an existing problem and provides a system and a method for controlling a door based on biometrics that enable network interworking of registered biometric information. The provided system comprises: a biometric recognition device which requests biometric information authentication while transmitting biometric information of a visitor to a relay server, and outputs a door driving control signal based on an authentication result from the relay server; and a relay server which generates a block including template data corresponding to a biometric feature point of a registrant and a result hash value based on the template data, distributes and stores the generated block in a plurality of data servers forming a block chain network to be shared, requests authentication for the biometric information of the visitor to the data servers as a request for the biometric information authentication of the visitor is received, generates a final authentication result based on a visitor authentication result of the data servers, and transmits the generated final authentication result to the biometric recognition device.

Description

System and method for controlling a door based on biometric recognition

The present invention relates to a biometric recognition door control system and method, and more particularly to a system and method for controlling the opening and closing of the door based on biometric information such as face, fingerprint, iris.

Door control system refers to a system for controlling the opening and closing of the door by recognizing the person who wants to enter the specific space.

In the door control system, an access authentication technique is applied to confirm whether an accessor is an authorized person, and a mechanism for opening the door to the authorized person is applied.

As a method of authenticating the user, a method using a magnetic card, a smart card or a contactless wireless (RFID) card, and a biometric method that stores and uses biometric information based on the person's face, fingerprint, and iris for authentication, are widely used. have.

As is well known, interest in biometric techniques has recently increased due to ease of portability, difficulty in copying, and the like.

However, the conventional door control system using the biometrics does not have a network interworking of the registered biometric information. Therefore, when a region is moved, it is troublesome to re-register a face, a fingerprint, an iris, or the like. For example, if a person working at Company A's Seoul office moves or travels to Company A's Shanghai office, he or she must re-register his or her face, fingerprint, or iris to access the Shanghai office.

Prior Art 1: Republic of Korea Patent No. 10-1218296 (Access Control System and Method) Prior Art 2: Republic of Korea Patent No. 10-0893905 (Access control method and system using biometrics) Prior Art 3: Korean Patent Publication No. 10-2017-0083778 (Fingerprint Recognition Security System for Visitor Access Management)

The present invention has been proposed to solve the above-mentioned conventional problems, and an object thereof is to provide a biometric-based door control system and method for enabling network interworking of registered biometric information.

In order to achieve the above object, a biometric-based door control system according to a preferred embodiment of the present invention requests biometric authentication while transmitting biometric information of a visitor to a relay server, and authenticates the authentication result from the relay server. A biometric reader that outputs a door driving control signal based on the input; And generating a block including template data corresponding to the biometric feature of the registrant and a result hash value based on the template data, to be distributed and stored in a plurality of data servers constituting a blockchain network, and to share the visitor's biometrics. Upon receiving the information authentication request, request the authentication of the visitor's biometric information to the plurality of data servers, generate a final authentication result based on the visitor authentication results of the plurality of data servers, and transmit the result to the biometric reader. It includes; a relay server.

The biometric recognizer may include a photographing unit which captures a biometric image of the visitor; A biometric image extracting unit extracting a biometric image from the photographed biometric image of the visitor; A biometric information generator configured to extract a feature point from the extracted biometric image of the visitor and generate biometric information based on the extracted feature point; A transmission unit which requests biometric information authentication while transmitting the generated biometric information of the visitor to the relay server; An authentication result receiving unit which receives an authentication result from the relay server; And a controller configured to output a door driving control signal based on the received authentication result.

The biometric image of the visitor may be an image including any one of a face, a fingerprint, and an iris of the visitor.

The visitor biometric information may include template data corresponding to the biometric feature point of the visitor.

The biometric recognizer may further include an alarm unit that alerts the outside based on the received authentication result.

The alarm unit may alert when the received authentication result indicates authentication failure, and provide the face image of the visitor together with the outside in performing the alert.

The relay server may include: a registration request receiver configured to receive a biometric information registration request including template data corresponding to a biometric feature point of a registrant; A block generation unit generating a result hash value by applying the template data to a hash function, and generating a block including the template data and the result hash value; A block transmitter to transmit the generated blocks to the plurality of data servers to be distributedly stored; An authentication request transfer unit for transmitting the visitor's biometric information authentication request from the biometric reader to the plurality of data servers; And an authentication result transmitter configured to generate a final authentication result based on the visitor authentication result from each data server and transmit the final authentication result to the biometric reader.

The biometric information registration request may further include ID information of the registrant, and the block generator may include ID information of the registrant together in a block.

The plurality of data servers may perform visitor authentication by matching template data corresponding to the biometric feature point of the visitor with template data corresponding to the biometric feature point of a registered registrant.

Meanwhile, in the biometric-based door control method according to the preferred embodiment of the present invention, the relay server generates a block including template data corresponding to the biometric feature of the registrant and a result hash value based on the template data. Distributing and sharing the data in a plurality of data servers constituting the blockchain network; Requesting, by a biometric, biometric information authentication while transmitting biometric information of the visitor to the relay server; Requesting, by the relay server, the plurality of data servers to authenticate the visitor's biometric information; Generating, by the relay server, a final authentication result based on visitor authentication results of the plurality of data servers and transmitting the final authentication result to the biometric reader; And outputting, by the biometric reader, a door driving control signal based on an authentication result from the relay server.

According to the present invention of such a configuration, it is possible to simply perform visitor authentication anywhere by sharing through the network interworking of the pre-registered biometric information.

In other words, if the registrant's biometric information is registered in advance in one place, re-registration is not necessary due to the change of place, and the visitor's biometric information is subsequently easily authenticated based on the shared biometric information in any building. can do.

1 is a view showing a biometric-based door control system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating an internal configuration of the bioregister shown in FIG. 1.
3 is a diagram illustrating an internal configuration of the biometric device shown in FIG. 1.
4 is a diagram illustrating an internal configuration of the relay server shown in FIG. 1.
5 is a flowchart illustrating a registration process in a biometric-based door control method according to an embodiment of the present invention.
6 to 8 are diagrams employed in the description of FIG. 5.
9 is a flowchart illustrating a biometric-based door control method according to an embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description.

However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. In the following description of the present invention, the same reference numerals are used for the same elements in the drawings and redundant descriptions of the same elements will be omitted.

1 is a view showing a biometric-based door control system according to an embodiment of the present invention.

A biometric-based door control system according to an embodiment of the present invention may include a bioregistrator 10, a biometric reader 20, a data server 30, and a relay server 40.

The bioregistrator 10 transmits the biometric information of the registrant to the relay server 40 and makes a biometric information registration request. Here, the registrant's biometric information has raw data. As a result, when the bioregistrator 10 requests the biometric information registration request to the relay server 40, the bioregistrator 10 transmits template data (eg, binary data) corresponding to the biometric feature of the registrant as biometric information of the registrant. The ID information of the registrant (eg, company number, name, affiliation, country, etc.) is also transmitted. The biometric point of the registrant may mean a feature point such as a face, a fingerprint, or an iris of the registrant. For example, the template data corresponding to the feature points of the face may be coordinate information such as eyes, nose, mouth, and distance information between them. The template data corresponding to the feature point of the fingerprint may be information such as an end point, a branch point, and a direction of the ridge of the fingerprint. The template data corresponding to the feature points of the iris may be pattern pattern information of the iris.

The registrant's ID information may be directly input by the registrant.

The biometric information of such registrants is blocked at the relay server 40 and distributed (ie, registered) to a plurality of data servers 30 constituting the blockchain network.

Since one or more bio-registrators 10 may be installed for each building in an area, it is understood that a plurality of bio-registrators 10 are scattered.

The biometric reader 20 requests biometric information authentication while transmitting the biometric information of the visitor to the relay server 40. For example, the visitor's biometric information includes template data (eg, binary data) corresponding to the visitor's biometric feature. Here, the biometric feature point of the visitor may mean feature points such as a face, fingerprint, or iris of the visitor. For example, the template data corresponding to the feature points of the face may be coordinate information such as eyes, nose, mouth, and distance information between them. The template data corresponding to the feature point of the fingerprint may be information such as an end point, a branch point, and a direction of the ridge of the fingerprint. The template data corresponding to the feature points of the iris may be pattern pattern information of the iris.

In addition, the biometric reader 20 outputs a door driving control signal (that is, one of a door opening signal and a door closing signal) that opens or closes the door 50 based on the authentication result from the relay server 40.

In other words, the biometric reader 20 transmits a door open signal to the door 50 to open the door 50 if the visitor is a registered registrant, and the door 50 if the visitor is not a registered registrant. The door closing signal for closing the door is transmitted to the door 50.

In particular, the biometric recognizer 20 may alert the administrator or the police box nearby if the visitor is not a registered registrant. In this case, the visitor may provide a face image of the visitor instead of the registered registrant. This will make it easier to track who the visitor is, rather than a registered registrant.

The biometric reader 20 will be installed near the door 50. Since one or more doors 50 may be installed for each building in the area, the biometric reader 20 will also be installed equal to the number of doors 50.

The data server 30 is scattered in plural on the network 60. Here, the network 60 may be implemented as a wired network such as a local area network (LAN), a wide area network (WAN), or a value added network (VAN). In addition, the network 60 may include a mobile radio communication network, a satellite communication network, Bluetooth, Wibro (Wireless Broadband Internet), HSDPA (High Speed Downlink Packet Access), Wi-Fi, and LTE (Long). Such as Term Evolution). If necessary, the network 60 may be a mixed network of wired and wireless.

The data server 30 stores a block including a template data corresponding to the biometric information of the registrant and a result hash value based on the template data corresponding to the biometric information of the registrant in a chain form. In other words, a block including a template data corresponding to the biometric information of the registrant and a result hash value based on the template data corresponding to the biometric information of the registrant may generate a hash value for a block previously generated by the current block on a block-by-block basis. The plurality of blocks may be stored in the form of a block chain having a structure that is sequentially connected according to the generation order. Here, the biometric information of the registrant may include template data (eg, binary data) corresponding to the biometric feature point of the registrant as described above. In each block, ID information of the corresponding registrant (eg, company number, name, affiliation, country, etc.) will be stored together. The registrant may be scattered in several places, and if the registrants of several places request registration of their own biometric information to be distributed and stored in the plurality of data servers 30, the biometric information distributed and stored in the plurality of data servers 30. Is stored in the form of a time series blockchain.

The plurality of data servers 30 may be regarded as forming a blockchain network in association with the network 60.

The plurality of data servers 30 may be viewed as sharing biometric information through a network 60 through a distributed database method. In other words, when registration of any one biometric information is required, if the relay server 40 provides the biometric information in the form of a block to any data server 30 on the blockchain network, the corresponding data server 30 blocks It is stored in its own DB (not shown), and propagated to another data server 30, and another data server 30 will propagate the block to another data server 30.

And, according to the corresponding mutual verification process, for example, when the approval from the node terminal (that is, the data server 30) of a certain ratio or more is processed, the corresponding block (ie, including biometric information) is updated and shared, Registration of biometric information can be processed.

Meanwhile, each data server 30 may authenticate biometric information of the visitor based on the biometric information authentication request of the visitor. At this time, the visitor's biometric information authentication request includes the visitor's biometric information, and the visitor's biometric information includes template data (eg, binary data) corresponding to the visitor's biometric feature point. Accordingly, each data server 30 may perform visitor authentication by matching template data corresponding to the biometric feature of the visitor with template data corresponding to the biometric feature of the registered registrant. Each data server 30 forwards the visitor authentication result to the relay server 40.

When the relay server 40 receives the biometric information registration request of the registrant from the bioregistrator 10, the result hash value based on the template data corresponding to the biometric information of the registrant and the template data corresponding to the biometric information of the registrant. To generate a block including a distributed to the plurality of data servers 30 constituting the block chain network to be shared.

In addition, when the relay server 40 receives the visitor's biometric information authentication request from the biometric reader 20, the relay server 40 provides the visitor's biometric information to a plurality of data servers 30 constituting the blockchain network to request authentication. do.

Meanwhile, the relay server 40 may generate a final authentication result based on the visitor authentication result of each data server 30 and transmit the final authentication result to the corresponding biometric recognizer 20. For example, when the relay server 40 receives an authentication result indicating that the visitor is a normal visitor from the majority or more data servers 30, the relay server 40 may transmit the final authentication result of authentication success to the corresponding biometric recognizer 20. On the contrary, when an authentication result indicating that the visitor is abnormal is received from the majority or more data servers 30, the final authentication result of authentication failure may be transmitted to the corresponding biometric recognizer 20.

In FIG. 1 described above, the network 60 is shown to exist between the data server 30 and the relay server 40, but in practice, between the bioregistrator 10 and the relay server 40, and the biometric identifier 20. ) And relay server 40.

FIG. 2 is a diagram illustrating an internal configuration of the bioregistrator 10 shown in FIG. 1.

The bioregistrator 10 may include a photographing unit 11, an input unit 12, a biometric image extraction unit 13, a biometric information generation unit 14, a transmission unit 15, and a controller 16.

The photographing unit 11 may photograph the bio-included image of the registrant. Accordingly, the photographing unit 11 includes a camera. For example, the bio-included image of the registrant may be an image including a face and a shoulder portion of the registrant.

The input unit 12 receives ID information of the registrant. For example, the registrant's ID information may include company number, name, affiliation, country, and the like.

The biometric image extractor 13 extracts the biometric image from the biometric image of the registrant photographed by the photographing unit 11. For example, if the biometric image of the registrant is an image including a face and a shoulder portion of the registrant, the biometric image of the registrant may mean only a face portion. If the bio-included image of the registered registrant is an image including a fingerprint or an iris, the biometric image extractor 13 may extract only the fingerprint or iris portion.

The biometric information generator 14 extracts a feature point from the biometric image of the registrant extracted by the biometric image extractor 13 and then generates biometric information (ie, template data; binary data) based on the feature point. For example, the biometric information generation unit 14 may determine the eye, nose, mouth, etc. of the registrant as a feature point in the biometric image, and may refer to the biometric information (ie, template data) representing coordinate information of the feature point as binary data. Can be created). Of course, if necessary, the biometric information generating unit 14 may generate biometric information based on the feature points of the fingerprint and the iris.

The transmission unit 15 transmits the biometric information of the registrant generated by the biometric information generation unit 14 to the relay server 40 and requests biometric information registration. For example, the registrant's biometric information includes template data (eg, binary data) corresponding to the registrant's biometric feature. Of course, when the transmission unit 15 transmits the registrant's biometric information to the relay server 40, the transmission unit 15 also transmits the ID information (eg, company number, name, affiliation, country, etc.) of the registrant inputted from the input unit 12. .

The controller 16 controls the overall operation of the bioregistrator 10.

3 is a diagram illustrating an internal configuration of the biometric reader 20 illustrated in FIG. 1.

The biometric reader 20 includes a photographing unit 21, a storage unit 22, a biometric image extracting unit 23, a biometric information generating unit 24, a transmitting unit 25, an authentication result receiving unit 26, and an alarm unit 27. ), And a control unit 28.

The photographing unit 21 may capture a biometric image of the visitor. Accordingly, the photographing unit 21 includes a camera. For example, the biometric image of the visitor may be an image including the face and shoulders of the visitor.

The storage unit 22 stores the biometric image of the visitor photographed by the photographing unit 21.

The biometric image extractor 23 extracts the biometric image from the biometric image of the visitor photographed by the photographing unit 21. For example, if the biometric image of the visitor is an image including a face and a shoulder portion of the registrant, the biometric image of the visitor may mean only a face portion. If the captured biometric image of the visitor is an image including a fingerprint or an iris, the biometric image extractor 23 may extract only the fingerprint or iris portion.

The biometric information generator 24 extracts a feature point from the biometric image of the visitor extracted by the biometric image extractor 23 and generates biometric information (ie, template data; binary data) based on the feature point. For example, the biometric information generation unit 24 may determine the eye, nose, mouth, etc. of the visitor as a feature point in the biometric image, and may be referred to as biometric information (ie, template data) representing coordinate information of the feature point as binary data. Can be created). Of course, if necessary, the biometric information generation unit 24 may generate biometric information based on the feature points of the fingerprint and the iris.

The transmission unit 25 transmits the biometric information of the visitor generated by the biometric information generation unit 24 to the relay server 40 and requests biometric information authentication. For example, the visitor's biometric information includes template data (eg, binary data) corresponding to the visitor's biometric (face, fingerprint, iris, etc.) feature points.

The authentication result receiver 26 receives the authentication result from the relay server 40.

The alarm unit 27 may alert an administrator or a police box nearby to warn that the visitor is not a registered registrant according to the authentication result received by the authentication result receiver 26. In this case, the alarm unit 27 may provide a face image of the visitor (that is, the image stored in the storage unit 22) together with not the registered registrant.

The controller 28 controls the overall operation of the biometric reader 20.

In particular, the controller 28 may output a door driving control signal (that is, one of a door opening signal and a door closing signal) that opens or closes the door 50 based on the authentication result received by the authentication result receiving unit 26. Can be.

4 is a diagram illustrating an internal configuration of the relay server 40 shown in FIG. 1.

The relay server 40 may include a registration request receiver 41, a block generator 42, a block transmitter 43, an authentication request receiver 44, an authentication request transmitter 45, an authentication result receiver 46, and an authentication. The result transmission unit 47 and the control unit 48 may be included.

The registration request receiver 41 receives a biometric information registration request of a registrant from the bioregistrator 10. In this case, the biometric information registration request includes biometric information of the registrant and ID information of the registrant (eg, company number, name, affiliation, country, etc.). The biometric information of the registrant includes template data (eg, binary data) corresponding to the biometric feature point of the registrant.

The block generator 42 applies the template data corresponding to the biometric information of the registrant received by the registration request receiver 41 to the hash function to generate a result hash value (that is, a unique value for the input template data). Later, a block is created that includes the template data (ie, template data corresponding to the biometric information of the registrant) and the resulting hash value (ie, a result hash value generated based on the template data corresponding to the biometric information of the registrant). do. Of course, the block generation unit 42 includes the registrant's ID information (eg, company number, name, affiliation, country, etc.) together in the block.

Meanwhile, the block generator 42 may store the generated block in a block chain form in a DB (not shown) inside the block generator 42. A DB storing a blockchain type block may be referred to as a blockchain bio DB.

The block transmitter 43 transmits the blocks generated by the block generator 42 to a plurality of data servers 30 constituting the block chain network to be distributed and stored.

In other words, each time the block generator 42 generates a block, the block transmitter 43 may transmit the generated block to the plurality of data servers 30, and transmit a plurality of blockchain bio-DBs every predetermined time. It may also transmit to the data server 30.

The authentication request receiver 44 receives a visitor's biometric information authentication request from the biometric reader 20. In this case, the visitor's biometric information authentication request includes the visitor's biometric information, and the visitor's biometric information includes template data (eg, binary data) corresponding to the visitor's biometric feature.

The authentication request transmitter 45 transmits the visitor's biometric information authentication request received by the authentication request receiver 44 to a plurality of data servers 30 constituting the blockchain network. That is, the authentication request delivery unit 45 provides the visitor's biometric authentication request (that is, the biometric information of the visitor) from the biometric reader 20 to the plurality of data servers 30 constituting the blockchain network. To request the corresponding visitor authentication.

The authentication result receiver 46 receives the visitor authentication result from each data server 30.

The authentication result transmitter 47 generates a final authentication result based on the visitor authentication result from each data server 30 received by the authentication result receiver 46 and transmits the final authentication result to the corresponding biometric recognizer 20. . For example, when the relay server 40 receives an authentication result indicating that the visitor is a normal visitor from the majority or more data servers 30, the relay server 40 may generate a final authentication result of authentication success and transmit the final authentication result to the corresponding biometric recognizer 20. . On the contrary, when an authentication result indicating that the visitor is an abnormal visitor is received from more than half of the data servers 30, a final authentication result of authentication failure may be generated and transmitted to the corresponding biometric recognizer 20.

The controller 48 controls the overall operation of the relay server 40.

Now, a biometric-based door control method according to an embodiment of the present invention will be described.

First, since the registration process must be preceded in the biometric-based door control method according to an embodiment of the present invention, this will be described with reference to the flowchart of FIG. 5. 6 to 8 are diagrams employed in the description of FIG. 5.

The bio-registrator 10 receives a bio-included image of the registrant by photographing the bio-included image of the registrant to be registered (S10). For example, the bio-included image of the registrant may be an image including the face and shoulder portions of the registrant as shown in FIG. 6.

The bioregistrator 10 extracts the biometric image from the biometric image of the registered registrant (S12). For example, if the biometric image of the registrant is an image including the face and shoulder portions of the registrant, the biometric image of the registrant may mean only the face portion a1 as shown in FIG. 7.

The bioregistrator 10 extracts a feature point from the extracted registrant's biometric image and generates biometric information (ie, template data; binary data) based thereon (S14). For example, as shown in FIG. 8, the bioregistrator 10 determines the eyes, nose, and mouth of the registrant as feature points b1, b2, and b3 in a biometric image, and expresses coordinate information of the feature points as binary data. Biometric information (ie, template data) may be generated.

Then, the bio-registrator 10 transmits the generated registrant's biometric information to the relay server 40 and requests biometric information registration (S16). For example, the registrant's biometric information includes template data (eg, binary data) corresponding to the registrant's biometric feature. Of course, when the bioregistrator 10 transmits the registrant's biometric information to the relay server 40, the bioregistrator 10 also transmits the registrant's ID information (eg, company number, name, affiliation, country, etc.) received from the input unit 12. .

Accordingly, the relay server 40 receives a biometric information registration request from the biometric register 10 (S18). In this case, the biometric information registration request includes biometric information of the registrant and ID information of the registrant (eg, company number, name, affiliation, country, etc.).

Subsequently, the relay server 40 applies the template data corresponding to the biometric information of the corresponding registrant received to the hash function to generate a result hash value (that is, a unique value for the input template data), and then the corresponding template data ( That is, a block is generated that includes the template data corresponding to the biometric information of the registrant and the result hash value (that is, the result hash value generated based on the template data corresponding to the biometric information of the registrant) (S20). . Of course, the registrant's ID information (eg, employee number, name, affiliation, country, etc.) is included in the block.

Thereafter, the relay server 40 transmits the generated block to a plurality of data servers 30 constituting the blockchain network to be distributedly stored (S22).

9 is a flowchart illustrating a biometric-based door control method according to an embodiment of the present invention.

The biometric recognizer 20 receives the bio-included image of the visitor by photographing the bio-included image of the visitor (S30). The biometric image of the visitor may be an image including the face and shoulders of the visitor. The captured biometric image of the visitor may be stored in the storage 22.

Subsequently, the biometric recognizer 20 extracts the biometric image from the biometric image of the visited visitor (S32). For example, if the biometric image of the visitor is an image including a face and a shoulder portion of the registrant, the biometric image of the visitor may mean only a face portion.

The biometric recognizer 20 extracts a feature point from the extracted biometric image of the visitor and generates biometric information (ie, template data; binary data) based thereon (S34). For example, the biometric information generation unit 24 may determine the eye, nose, mouth, etc. of the visitor as a feature point in the biometric image, and may be referred to as biometric information (ie, template data) representing coordinate information of the feature point as binary data. Can be created).

The biometric recognizer 20 transmits the generated biometric information of the visitor to the relay server 40 and makes a biometric information authentication request (S36). For example, the visitor's biometric information includes template data (eg, binary data) corresponding to the visitor's biometric (face, fingerprint, iris, etc.) feature points.

Accordingly, the relay server 40 receives the biometric information authentication request from the biometric reader 20 (S38). In this case, the biometric information authentication request includes biometric information of the visitor as template data (eg, binary data) corresponding to the biometric (face, fingerprint, iris, etc.) feature of the visitor.

Subsequently, the relay server 40 transmits the received visitor's biometric information authentication request to the plurality of data servers 30 constituting the blockchain network (S40). That is, the relay server 40 propagates the visitor's biometric authentication request (that is, including the visitor's biometric information) from the biometric reader 20 to the plurality of data servers 30 constituting the blockchain network, and then transmits the request. Visitor authentication can be requested.

Each data server 30 authenticates the received visitor's biometric information and sends the visitor authentication result to the relay server 40.

When the relay server 40 receives the visitor authentication result from each data server 30, the relay server 40 generates a final authentication result based on the visitor authentication result of each data server 30 to the corresponding biometric recognizer 20. S42 and S44. For example, when the relay server 40 receives an authentication result indicating that the visitor is a normal visitor from the majority or more data servers 30, the relay server 40 may transmit the final authentication result of authentication success to the corresponding biometric recognizer 20. On the contrary, when an authentication result indicating that the visitor is abnormal is received from the majority or more data servers 30, the final authentication result of authentication failure may be transmitted to the corresponding biometric recognizer 20.

Receiving the final authentication result, the biometric reader 20 controls the door opening and closing according to the final authentication result.

If the final authentication result of authentication success (authentication OK) is received (“Yes” in S46), the biometric reader 20 outputs a door driving control signal (ie, a door opening signal) to open the door 50. do. Accordingly, the door 50 in which the visitor is located is opened (S48).

On the contrary, when receiving a final authentication result of authentication failure (“No” in S46), the biometric reader 20 outputs a door driving control signal (ie, a door closing signal) to close the door. Accordingly, the door 50 in which the visitor is located is kept closed. At the same time, the biometric reader 20 alerts the administrator or a nearby police box or the like (S50).

In addition, the biometric-based door control method according to an embodiment of the present invention can be implemented as computer-readable code on a computer-readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention belongs.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of illustrating the present invention and are not intended to limit the scope of the invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10: biometric register 11: the imaging unit
12 input unit 13 biometric image extraction unit
14: biometric information generation unit 15: transmission unit
16: control unit 20: biometric reader
21: recording unit 22: storage unit
23: biometric image extraction unit 24: biometric information generation unit
25: transmitting unit 26: authentication result receiving unit
27: alarm unit 28: control unit
30: data server 40: relay server
41: registration request receiver 42: block generation unit
43: block transmission unit 44: authentication request receiving unit
45: authentication request delivery unit 46: authentication result receiving unit
47: authentication result transmission unit 48: control unit

Claims (18)

A biometric device for requesting biometric information authentication while transmitting the biometric information of the visitor to the relay server, and outputting a door driving control signal based on the authentication result from the relay server; And
Create a block including the template data corresponding to the biometric feature of the registrant and the resulting hash value based on the template data to be distributed and stored in a plurality of data servers constituting a blockchain network, the biometric information of the visitor Upon receiving an authentication request, requesting the plurality of data servers for authentication of the visitor's biometric information, generating a final authentication result based on the visitor authentication results of the plurality of data servers, and transmitting the final authentication result to the biometric reader. Biometric recognition; door control system comprising a relay server. The method according to claim 1,
The biometric reader,
A photographing unit which photographs the bio-included image of the visitor;
A biometric image extracting unit extracting a biometric image from the photographed biometric image of the visitor;
A biometric information generator configured to extract a feature point from the extracted biometric image of the visitor and generate biometric information based on the extracted feature point;
A transmission unit which requests biometric information authentication while transmitting the generated biometric information of the visitor to the relay server;
An authentication result receiving unit which receives an authentication result from the relay server; And
And a control unit for outputting a door driving control signal based on the received authentication result. The method according to claim 2,
The biometric image of the visitor is,
Biometric recognition-based door control system, characterized in that the image including any one of the visitor's face, fingerprint, and iris. The method according to claim 2,
Biometric information of the visitor,
And a template data corresponding to the visitor's biometric feature. The method according to claim 2,
The biometric reader,
And an alarm unit configured to alert an outside to the outside according to the received authentication result. The method according to claim 5,
The alarm unit,
When the received authentication result means that the authentication failed, the alarm, and the biometric-based door control system characterized in that it provides the visitor's face image to the outside in the alert. The method according to claim 1,
The relay server,
A registration request receiver configured to receive a biometric information registration request including template data corresponding to the biometric feature point of the registrant;
A block generation unit generating a result hash value by applying the template data to a hash function, and generating a block including the template data and the result hash value;
A block transmitter to transmit the generated blocks to the plurality of data servers to be distributedly stored;
An authentication request transfer unit for transmitting the visitor's biometric information authentication request from the biometric reader to the plurality of data servers; And
And an authentication result transmitter configured to generate a final authentication result based on the visitor authentication result from each data server and transmit the final authentication result to the biometric reader. The method according to claim 7,
The biometric information registration request further includes ID information of the registrant,
The block generation unit is a biometric-based door control system comprising the registrant's ID information included in the block. The method according to claim 1,
The plurality of data servers,
And a visitor authentication based on matching of template data corresponding to the visitor biometric feature and template data corresponding to the registered biometric feature of the registered registrant. Generating, by the relay server, a block including template data corresponding to the biometric feature of the registrant and a result hash value based on the template data, distributed and storing the plurality of data servers constituting the blockchain network;
Requesting, by a biometric, biometric information authentication while transmitting biometric information of the visitor to the relay server;
Requesting, by the relay server, the plurality of data servers to authenticate the visitor's biometric information;
Generating, by the relay server, a final authentication result based on visitor authentication results of the plurality of data servers and transmitting the final authentication result to the biometric reader; And
And outputting a door driving control signal based on the authentication result from the relay server, by the biometric reader. The method according to claim 10,
The requesting authentication of the biometric information may include:
Photographing the biometric image of the visitor;
Extracting a biological image from the captured biometric image of the visitor;
Extracting feature points from the extracted biometric image of the visitor and generating biometric information based on the extracted feature points; And
And requesting biometric information authentication while transmitting the generated biometric information of the visitor to the relay server. The method according to claim 11,
The biometric image of the visitor is,
Biometric recognition-based door control method characterized in that the image including any one of the visitor's face, fingerprint, and iris. The method according to claim 11,
Biometric information of the visitor,
Biometric recognition-based door control method comprising the template data corresponding to the biometric feature of the visitor. The method according to claim 10,
The outputting of the door driving control signal may include:
And a step of alerting the outside according to the received authentication result. The method according to claim 14,
The step of making the alarm,
When the received authentication result means that the authentication failed, the alarm is issued, and the biometrics-based door control method characterized in that it provides the visitor's face image to the outside in the alert. The method according to claim 10,
Generating the block and pre-distributed and stored in a plurality of data servers constituting a blockchain network to share,
Receiving a biometric information registration request including template data corresponding to the biometric feature point of the registrant;
Applying the template data to a hash function to generate a result hash value, and generating a block including the template data and the result hash value; And
And transmitting the generated blocks to the plurality of data servers so that the generated blocks are distributed and stored. The method according to claim 16,
The biometric information registration request further includes ID information of the registrant,
The generating of the block may include the ID information of the registrant in the block. The method according to claim 10,
Visitor authentication results of the plurality of data servers,
And obtaining template data corresponding to the visitor's biometric point and template data corresponding to the registered biometric point of the registered registrant.

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