CN209044706U - Access control system with 3D face identification functions - Google Patents

Abstract

The utility model discloses a kind of access control systems with 3D face identification functions, including face identification unit, control unit, data cell and switch unit, the face identification unit is for obtaining real-time 3D face information and being sent to described control unit, the 3D face database that the real-time 3D face information and the data cell store is carried out matching verifying by described control unit, and controls whether the switch unit is opened and/or according to the secondary verifying of verification result progress according to verification result.The utility model uses 3D face information as main identification and verification mode, has the characteristics that easy to use, efficiency is higher when gate inhibition is current.

Description

Access Control System with 3D Face Recognition

technical field

The utility model relates to the field of biological recognition, in particular to an access control system with a 3D face recognition function.

Background technique

With the rapid development of technology and the accelerated pace of people's life, many factories, companies, office buildings, exhibition halls, and residential areas have adopted access control systems to replace traditional manual guards to realize the identification of specific personnel. The usual access control system generally adopts the card swiping method. Users need to carry the access control card with them and manually swipe the card. When carrying something or holding a child, or holding an umbrella in the rain, this kind of access control card is inconvenient to use. . Moreover, when users swipe the card, they usually need to find the access control card from the bag or pocket and take it out to swipe the card, which is inefficient. In addition, the access control card has the problem of easy loss. Some access control systems use fingerprint unlocking, which also has the above-mentioned inconvenience problems, and fingerprint unlocking generally requires contact with a fingerprint identification device, which is likely to cause health hazards when used by many people. Therefore, the existing access control system is inconvenient to use and has low efficiency.

Utility model content

The purpose of the utility model is to provide an access control system with convenient use and high efficiency.

One aspect of the present utility model discloses an access control system with a 3D face recognition function, comprising a face recognition unit, a control unit, a data unit and a switch unit, the face recognition unit is used for acquiring real-time 3D face information and Sent to the control unit, the control unit performs matching verification between the real-time 3D face information and the 3D face database stored in the data unit, and controls whether the switch unit is turned on and/or according to the verification result. The results are verified twice.

Further, it also includes an identity recognition unit connected to the control unit, and the identity recognition unit can obtain the user's identity information through one or more of passwords, fingerprints, and access cards, and the control unit can obtain the user's identity information according to the The identity information controls whether the switch unit is turned on.

Further, it also includes a display unit connected to the control unit for displaying the status of the access control switch and whether the verification is passed.

Further, the data unit includes a 3D face database composed of pre-stored 3D face information of a plurality of specific users or user groups.

Further, the data unit also includes user fingerprint data, user password and user access card information.

Further, it also includes a communication unit connected to the control unit, and the communication unit can communicate with the user's mobile communication device through a wireless communication network.

Further, when the verification result satisfies the first preset condition, the control unit controls the switch unit to open; when the verification result satisfies the second preset condition, the control unit sends a secondary verification request to the monitoring center or the user. The monitoring center performs secondary verification on the user or the user performs secondary verification through the mobile communication device; when the verification result satisfies the third preset condition, the control unit controls the switch unit to close or keep it closed.

Further, the first preset condition includes that the similarity of the verification results reaches 95%, the second preset condition includes that the similarity of the verification results reaches 90%, and the third preset condition includes that the similarity of the verification results does not reach 90%. %.

Further, when the verification result meets the first preset condition or after the second verification is passed, the data unit stores and backs up the received real-time 3D face information, and records the corresponding user 3D face information in the database. renew.

Further, the face recognition unit includes a 3D camera, which adopts a 3D structured light or ToF structure.

Further, the switch unit includes a mechanical, electrical or electronic access control switch, which is turned on or off under the control of the control unit.

Further, the secondary verification request is sent to the user's mobile communication device by means of a mobile terminal application push message or a short message, and the secondary verification may be fingerprint verification or password verification.

The access control system with the 3D face recognition function of the utility model uses the 3D face information as the main identification and verification method, and has the characteristics of convenient use and high efficiency when the access control passes. Moreover, due to the characteristics of 3D face recognition, the security of the present invention is relatively high.

Description of drawings

1 is a schematic diagram of an embodiment of an access control system of the present invention;

2 is a schematic diagram of an embodiment of the access control system of the present invention;

3 is a schematic diagram of another embodiment of the access control system of the present invention;

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2. In one embodiment of the access control system with 3D face recognition function of the present invention, the access control system 10 includes a face recognition unit 11, a control unit 12, a data unit 13, a switch unit 14, Display 15 , monitoring center 16 and identification unit 17 . The face recognition unit 11 , the data unit 13 , the switch unit 14 , the display 15 , the monitoring center 16 and the identity recognition unit 17 are respectively connected to the control unit 12 .

The face recognition unit 11 is used for acquiring and recognizing the real-time 3D face information of the user, and sending the real-time 3D face information to the control unit 12 . The data unit 13 is used to store user identity data, including but not limited to: user 3D face information data, user fingerprint data, user password, user access card information, and the like. The control unit 12 matches the received real-time 3D face information from the face recognition unit 11 with the 3D face database of the data unit 13 and obtains a matching result. The display 15 can be used to display relevant information such as the status of the access control switch or whether the verification is passed under the control of the control unit 12 . The identity recognition unit 17 is used for the user to open the door after identity verification, and the identity recognition unit 17 includes at least one of password input recognition, fingerprint input recognition, and access control card swiping recognition. In this embodiment, the data unit 13 includes a 3D face database composed of pre-stored 3D face information of a plurality of specific users or user groups.

When the matching result satisfies the first preset condition, the control unit 12 controls the switch unit 14 to turn on the access control switch. When the matching result satisfies the second preset condition, the control unit 12 sends a secondary verification request to the monitoring center 16, and the monitoring center 16 performs secondary verification on the user. When the matching result satisfies the third preset condition, the control unit 12 controls the switch unit 14 to be closed or kept closed.

In this embodiment, the first preset condition includes: the similarity of the matching results reaches a first threshold, and the control unit 12 determines that the user is a legitimate user and has access rights for access control, and the control unit 12 controls the The switch unit 14 turns on the door switch. The display 15 shows that the door is open.

The second preset condition includes: the similarity of the matching result reaches the second threshold, but does not reach the first threshold. At this time, the control unit 12 considers that the user may be a legitimate user, and therefore requests the monitoring center 16 to perform secondary verification on the user. This situation is actually quite common. For example, a user's slight changes in hairstyle, face shape, sunglasses, etc. will have a certain impact on the matching result, so that the matching result is between the first threshold and the second threshold. The monitoring center 16 may be a monitoring and security center of a building or a community, and can monitor various camera images within the range.

When receiving the secondary verification request sent by the control unit 12, the staff of the monitoring center 16 observes the user's face and other biometric features through the face recognition unit 11 or other access control cameras, and determines whether to allow or not. In other or modified embodiments of the present invention, the access control system 10 further includes an intercom unit connected to the control unit 12, and the staff of the monitoring center 16 can also use the intercom unit to inquire the user. way to achieve secondary verification. When the second verification is passed, the display 15 shows that the access control is open, otherwise it shows that the access control is closed.

The third preset condition includes: the similarity of the matching results does not reach the second threshold, and the control unit 12 considers that the user is not a legitimate user at this time, so the switch unit 14 is turned off or kept turned off. The display 15 shows that the door is closed.

In this embodiment, when the user matching result satisfies the first preset condition or after the user passes the second verification, the control unit 12 controls the data unit 13 to store and back up the received real-time 3D face information, The corresponding user 3D face information in the database is updated or the 3D face information in the database is supplemented.

In this embodiment, the first threshold may be 95%, and the second threshold may be 90%. In other or modified embodiments of the present invention, the first threshold and the second threshold may be set as required.

In this embodiment, the face recognition unit 11 includes a 3D camera, which adopts a 3D structured light or a ToF (time offlight) structure to obtain and detect 3D information of a face. The switch unit 14 includes a mechanical, electrical or electronic access control switch device, which is opened or closed under the control of the control unit 12 .

In this embodiment, the 3D face data stored by the data unit 13 may be obtained by storing the real-time 3D face information acquired by the face recognition unit 11, or may be imported from an external 3D face database. .

It should be pointed out that, for the convenience of description in the description of the present utility model, "user" and "user" can usually be replaced with each other, and they express the same meaning; words such as "match", "verification" and "comparison" are not specifically stated. In all cases, it means the process of matching and verifying the real-time 3D face information of the user and the 3D face information stored in the database.

Compared with the prior art, the access control system 10 with the 3D face recognition function of the present invention uses the 3D face information as the main identification and verification method, and has the characteristics of convenient use and high efficiency during access control. Moreover, due to the characteristics of 3D face recognition, the security of the present invention is relatively high.

Referring to FIG. 3 , an access control system 20 according to another embodiment of the present invention includes a face recognition unit 21 , a control unit 22 , a data unit 23 , a switch unit 24 , a display 25 and a communication unit 26 . The face recognition unit 21 , the data unit 23 , the switch unit 24 , the display 25 and the communication unit 26 are connected to the control unit 22 . The face recognition unit 21 is used to obtain real-time 3D face information of the user. The data unit 23 is used to store user identity data, including but not limited to: user 3D face information data, user fingerprint data, user ID and password, and the like. The control unit 22 matches and verifies the real-time 3D face information and the stored 3D face information data, and controls the switch unit 24 to turn on the access switch or keep the access switch off according to the verification result. The communication unit 26 is capable of communicating with the mobile communication device 100 through a wireless communication network.

The mobile communication device 100 includes, but is not limited to, a smartphone, a tablet computer, and the like. The mobile communication device 100 may install a mobile application. When the mobile communication device 100 communicates with the communication unit 26, the user can input the identity verification information on the mobile communication device 100, and the control unit 22 can control the switch unit after verifying that the identity verification information input by the user is passed 24 Turn on the access control switch. The identity verification information includes but is not limited to user 3D face information, password information or fingerprint information.

The face recognition unit 21 is used for acquiring and recognizing the real-time 3D face information of the user, and sending the real-time 3D face information to the control unit 22 . The control unit 22 matches the received real-time 3D face information from the face recognition unit 21 with the 3D face database of the data unit 23 and obtains a matching result. The display 25 can be used to display relevant information such as the status of the access control switch or whether the verification is passed under the control of the control unit 22 .

When the matching result satisfies the first preset condition, the control unit 22 controls the switch unit 24 to turn on the access control switch. When the matching result satisfies the second preset condition, the control unit 22 sends a secondary verification request to the mobile communication device 100 through the communication unit 26 . After the user passes the secondary verification on the mobile communication device 100, the control unit 22 controls the switch unit 24 to turn on the access control switch, otherwise the access control switch remains closed. The secondary verification request may be sent to the user's mobile communication device 100 by means of a mobile terminal application push message or a short message. The secondary verification may be fingerprint verification or password verification. Since the mobile phone number implements the real-name system, and application registration usually requires registration with the mobile phone number, the secondary verification has high reliability.

When the matching result satisfies the third preset condition, the control unit 22 controls the switch unit 24 to be closed or kept closed.

In this embodiment, the first preset condition includes: the similarity of the matching results reaches a first threshold, and the control unit 22 determines that the user is a legitimate user and has access rights for access control, and the control unit 22 controls the The switch unit 24 turns on the door switch. The display 25 shows that the door is open.

The second preset condition includes: the similarity of the matching result reaches the second threshold, but does not reach the first threshold. At this time, the control unit 22 considers that the user may be a legitimate user, but needs further confirmation, and therefore requests the user to perform a second verification through the mobile communication device 100 .

The third preset condition includes: the similarity of the matching result does not reach the second threshold, and the control unit 22 considers that the user is not a legitimate user at this time, so the switch unit 24 is turned off or kept turned off. The display 25 shows that the door is closed.

The access control system 20 with 3D face recognition function of the present invention uses 3D face information as the main verification method, and can also use a mobile communication device for verification, and has the characteristics of convenient use and high efficiency during access control.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Replacement should be covered within the protection scope of the present invention. The terms used in the claims should not be construed to limit the utility model to the specific embodiments disclosed in this specification. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. an access control system with 3D face recognition function, is characterized in that, comprises face recognition unit, control unit, data unit and switch unit, and described face recognition unit is used to obtain real-time 3D face information and send to The control unit, the control unit performs matching verification between the real-time 3D face information and the 3D face database stored in the data unit, and controls whether the switch unit is turned on and/or according to the verification result. Secondary verification. 2. access control system according to claim 1, is characterized in that, also comprises the identity recognition unit that is connected with described control unit, described identity recognition unit can pass one or more ways in password, fingerprint, access control card The user's identity information is acquired, and the control unit controls whether the switch unit is turned on according to the identity information. 3 . The access control system according to claim 1 , further comprising a display unit connected to the control unit for displaying the state of the access control switch and whether the verification is passed. 4 . 4 . The access control system according to claim 1 , wherein the data unit comprises a 3D face database composed of pre-stored 3D face information of a plurality of specific users or user groups. 5 . 5. The access control system according to claim 4, wherein the data unit further comprises user fingerprint data, user password and user access control card information. 6 . The access control system according to claim 1 , further comprising a communication unit connected to the control unit, and the communication unit can communicate with a user's mobile communication device through a wireless communication network. 7 . 7. The access control system according to claim 6, wherein when the verification result satisfies the first preset condition, the control unit controls the switch unit to open; when the verification result satisfies the second preset condition, the The control unit sends a secondary verification request to the monitoring center or the user's mobile communication device, and the monitoring center performs secondary verification on the user or the user performs secondary verification through the mobile communication device; when the verification result satisfies the third preset condition, the The control unit controls the switch unit to be closed or kept closed. 8. The access control system according to claim 7, wherein the first preset condition includes that the similarity of the verification results reaches 95%, the second preset condition includes that the similarity of the verification results reaches 90%, and the The third preset condition includes that the similarity of the verification results does not reach 90%. 9. The access control system according to claim 7, wherein when the verification result satisfies the first preset condition or after the second verification is passed, the data unit stores and backs up the received real-time 3D face information , and update the corresponding user 3D face information in the database. 10 . The access control system according to claim 1 , wherein the face recognition unit comprises a 3D camera, which adopts a 3D structured light or a ToF structure. 11 . 11. The access control system according to claim 1, wherein the switch unit comprises a mechanical, electrical or electronic access control switch, which is turned on or off under the control of the control unit. 12. The access control system according to claim 7, wherein the secondary verification request is sent to the user's mobile communication device by means of a mobile terminal application push message or a short message, and the secondary verification can be It is fingerprint authentication or password authentication.