CN206162736U - Access control system based on face recognition - Google Patents

Abstract

The utility model provides an access control system based on face recognition, which is used to improve the existing access control system at low cost and improve the security of the access control system. The access control system based on face recognition includes: intelligent terminal 101, face information database 102, door controller 103 and access control device 104; 103 communication connection, described door controller 103 is connected with described access control device 104 communication; Described door controller 103 is used for controlling the switch of described access control device 104 by sending access control signal; Described intelligent terminal 101 comprises: camera module 1011, the computer module 1012; the computer module 1012 includes a face recognition unit, and the face recognition unit is used to determine whether the face image acquired by the camera module is the face information database 102 through face comparison analysis The avatar that allows the door to be opened is recorded in .

Description

An access control system based on face recognition

technical field

The utility model relates to the field of security technology, in particular to an access control system based on face recognition.

Background technique

Among the existing access control systems, there are two types of applications and the most widely distributed, password access control system and card swiping access control system.

For password access control systems, with the development of computer and network technology, people need to remember more and more passwords, such as bank card passwords, mailbox passwords, QQ passwords, etc. With the accelerated pace of life, these passwords It is also easy to be forgotten; in addition, once the password is leaked, anyone can pass through the door, and the security is not high.

The traditional card access control refers to the use of non-contact integrated circuit (IC, Integrated Circuit) cards, and the card reader is placed at the entrance of the access control. , you can read the card information and perform card swiping operations.

The above-mentioned card swiping access control method needs to prepare and deliver an IC card containing personal identification information to the user in advance. If the user loses or misses the IC card, it may result in being unable to enter the venue, and there is also the risk of being impersonated to enter the venue.

Utility model content

The utility model provides an access control system based on face recognition, which is used for improving the existing access control system at low cost and improving the security of the access control system.

The access control system based on face recognition provided by the embodiment of the utility model includes:

Smart terminal 101, face information database 102, door controller 103 and access control device 104;

The smart terminal 101 is connected in communication with the face information database 102 and the door controller 103 respectively, and the door controller 103 is connected in communication with the access control device 104;

The door controller 103 is used to control the switch of the access control device 104 by sending an access control signal;

The smart terminal 101 includes: a camera module 1011, a computer module 1012; the computer module 1012 includes a face recognition unit, and the face recognition unit is used to determine the face image acquired by the camera module through face comparison analysis Whether it is the avatar that allows the door to be opened in the face information database 102; the computer module 1012 is used to send the determination result of the face recognition unit to the door controller 103, so that the door controller 103 Generate the access control signal according to the determination result.

Optionally, the computer module 1012 also includes a face registration unit, which is configured to perform face registration on the user's face image, and synchronize the successfully registered face image to the face information database 102.

Optionally, the computer module 1012 further includes: a living body detection unit, configured to perform live body detection on the face images captured by the camera module 1011 .

Optionally, the smart terminal 101 further includes: a display module 1013;

The display module 1013 is used to display the control interface of the computer module 1012 and the facial images captured by the camera module 1011 .

Optionally, the door controller 103 communicates with the access control device 104 through a network, bluetooth, serial communication interface or relay.

Optionally, the access control system also includes:

An alarm unit; the alarm unit is used for alarming users who illegally enter the access control device 104 .

Optionally, the access control system also includes:

A supplementary light device, the supplementary light device is used for supplementing light to the photographed object of the camera module 1011 under the condition of dark light.

Optionally, the access control device 104 is specifically a gate, and one smart terminal 101 controls one gate.

Optionally, the access control system further includes: a bracket housing; the bracket housing is arranged on one side of the gate, and the bracket housing is used to place the smart terminal 101 .

Optionally, the bracket housing is a trapezoid, the smart terminal 101 is arranged on an inclined surface of the trapezoid, and the camera module 1011 of the smart terminal 101 is arranged to face the user's coming direction.

It can be seen from the above that in the embodiment of the present utility model, face recognition and comparison are realized through the intelligent terminal and the face information database, and face recognition replaces card swiping and password input, which improves the security of the access control system; and, The traditional access control system requires a series of high-cost operations such as network wiring, camera monitoring, and anti-theft door renovation, and the overall replacement cost is relatively high. The access control system only adds smart terminals and face information databases to realize simple modification, convenient and low-cost improvement of the existing access control system.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a functional module schematic diagram of the access control system based on face recognition provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of an application scenario of an access control system based on face recognition provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a support housing of the access control system based on face recognition provided by the embodiment of the present invention;

Fig. 4 is a schematic diagram of another application scenario of the access control system based on face recognition provided by the embodiment of the present utility model.

detailed description

In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model embodiment will be clearly and completely described below in conjunction with the accompanying drawings in the utility model embodiment, Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment one

Referring to Fig. 1, the functional modules of the access control system based on face recognition in the embodiment of the utility model can include:

Smart terminal 101, face information database 102, door controller 103 and access control device 104;

Described intelligent terminal 101 is respectively connected with described face information database 102 and described door controller 103 by communication, and described door controller 103 is connected by communication with described access control device 104; Described intelligent terminal 101 can pass wired network or wireless The network establishes a communication connection with the face information database 102 and the door controller 103 respectively; the door controller 103 realizes a communication connection with the access control device 104 through a network, bluetooth, a serial communication interface or a relay.

The door controller 103 is used to control the switch of the access control device 104 by sending an access control signal;

The smart terminal 101 includes: a camera module 1011, a computer module 1012; the computer module 1012 includes a face recognition unit, and the face recognition unit is used to determine the face image acquired by the camera module through face comparison analysis Whether it is the avatar that allows the door to be opened in the face information database 102; the computer module 1012 is used to send the determination result of the face recognition unit to the door controller 103, so that the door controller 103 Generate the access control signal according to the determination result.

Optionally, the smart terminal 101 further includes: a display module 1013; the display module 1013 is configured to display the control interface of the computer module 1012 and the face image captured by the camera module 1011.

In practical applications, the access control system in this embodiment of the law may be a gate system (please refer to FIG. 2 ).

Specifically, the gates are paired with the smart terminals 101 one by one, that is, one smart terminal 101 controls one access gate.

Further, in the access control system of the gate, it also includes a bracket housing (please refer to Figure 3); the bracket housing is arranged on one side of the gate, and the bracket housing is used to place the Smart terminal 101. Specifically, the bracket housing is a trapezoidal body, the smart terminal 101 is set on the inclined surface of the trapezoidal body, and the camera module 1011 of the smart terminal 101 is set to face the direction of the user, so that It can capture the user's profile picture passing through the gate.

The following describes the operation example of the access control system in the embodiment of the present invention, specifically:

When the user walks to the gate as shown in Figure 2, the camera module 1011 of the smart terminal 101 shoots the user's face image, and the computer module 1012 of the smart terminal 101 judges whether the face image acquired by the camera module is It is the avatar recorded in the face information database 102 that allows access to be opened, and if so, the computer module 1012 sends the determination result of the face recognition unit to the door controller 103, so that the door controller 103 Generate an access control signal for opening the access control according to the determination result. The door controller 103 sends the access control signal to the access control device 104, so that the gate is opened.

The face recognition performed by the computer module 1012 can be completed according to the "1 to N" comparison method, "1" refers to the face image acquired by the camera module, and "N" refers to the face image stored in the face information database. N pieces of face data information; specifically, the face information database may be a face image database or a face feature database.

The features that can be used for face recognition are usually divided into visual features, pixel statistical features, face image transformation coefficient features, face image algebraic features, etc. Face feature extraction is based on certain features of the face. Also known as face representation, it is the process of modeling the features of the face. The methods of face feature extraction can be summarized into two categories: one is a knowledge-based representation method, and the other is based on algebraic features or statistics. The representation method of learning; the knowledge-based representation method is mainly based on the shape description of the face organs and the distance characteristics between them to obtain the feature data that is helpful for face classification, and its feature components usually include the Euclidean distance between feature points , curvature and angle, etc. The human face is composed of parts such as eyes, nose, mouth, and chin. The geometric description of these parts and the structural relationship between them can be used as important features for recognizing faces. These features are called geometric features. Knowledge-based face representation mainly includes geometric feature-based methods and template matching methods; the feature data comparison module searches and matches the feature data of the extracted face image with the feature templates pre-stored in the database. By setting a threshold, when When the similarity exceeds this threshold, the matching result is output. Face recognition is to compare the face features to be recognized with the obtained face feature templates, and judge the identity information of the faces according to the similarity.

After the computer module 1012 determines the identity of the target user by analyzing the recognition result, it can perform corresponding operations on the target user, such as opening the gate to allow the user to pass through.

A variety of recognition algorithms can be used for target user identification. For example, classification can be performed on the basis of rapid multi-scale pyramid feature data extraction, and results can be combined on the basis of multi-layer classification to obtain the final face recognition result.

Further, the face images registered in the face information database 102 can be set with multi-level permissions; for example, the access control system controls the entry and exit of multiple access control personnel in a building, and different access control requires different levels of access control authority. In the face information database 102, the face images of different users can be classified and set to match different entry and exit gates.

Further, the intelligent terminal at the gate can also realize the face registration function; specifically, the computer module 1012 also includes a face registration unit, which is used to perform face registration on the user's face image. Register, and synchronize the successfully registered face images into the face information database 102.

In practical applications, there may be no manual supervision at the gate, therefore, illegal users may deceive the face recognition unit through means such as photos. Therefore, the computer module 1012 in the embodiment of the utility model also includes: a living body detection unit, the The living body detection unit is used for performing living body detection on the face images captured by the camera module 1011 .

It can be seen from the above that in the embodiment of the present utility model, face recognition and comparison are realized through the intelligent terminal and the face information database, and face recognition replaces card swiping and password input, which improves the security of the access control system; and, The traditional access control system requires a series of high-cost operations such as network wiring, camera monitoring, and anti-theft door renovation, and the overall replacement cost is relatively high. The access control system only adds smart terminals and face information databases to realize simple modification, convenient and low-cost improvement of the existing access control system.

Embodiment two

The above-mentioned access control system is described with the gate machine as an example. In practical applications, there may also be an access control system for ordinary doors (as shown in Figure 4). The access control system based on face recognition in the embodiment of the present invention is also applicable. Specifically, the functional modules of the access control system based on face recognition in the embodiment of the utility model may include:

Smart terminal 101, face information database 102, door controller 103 and access control device 104;

Described intelligent terminal 101 is respectively connected with described face information database 102 and described door controller 103 by communication, and described door controller 103 is connected by communication with described access control device 104; Described intelligent terminal 101 can pass wired network or wireless The network establishes a communication connection with the face information database 102 and the door controller 103 respectively; the door controller 103 realizes a communication connection with the access control device 104 through a network, bluetooth, a serial communication interface or a relay.

The door controller 103 is used to control the switch of the access control device 104 by sending an access control signal;

The smart terminal 101 includes: a camera module 1011, a computer module 1012; the computer module 1012 includes a face recognition unit, and the face recognition unit is used to determine the face image acquired by the camera module through face comparison analysis Whether it is the avatar that allows the door to be opened in the face information database 102; the computer module 1012 is used to send the determination result of the face recognition unit to the door controller 103, so that the door controller 103 Generate the access control signal according to the determination result.

Optionally, the smart terminal 101 further includes: a display module 1013; the display module 1013 is configured to display the control interface of the computer module 1012 and the face image captured by the camera module 1011.

Further, the face images registered in the face information database 102 can be set with multi-level permissions; for example, the access control system controls the entry and exit of multiple access control personnel in a building, and different access control requires different levels of access control authority. In the face information database 102, the face images of different users can be classified and set to match different entry and exit gates.

Further, the intelligent terminal at the gate can also realize the face registration function; specifically, the computer module 1012 also includes a face registration unit, which is used to perform face registration on the user's face image. Register, and synchronize the successfully registered face images into the face information database 102.

In practical applications, there may be no manual supervision at the gate, therefore, illegal users may deceive the face recognition unit through means such as photos. Therefore, the computer module 1012 in the embodiment of the utility model also includes: a living body detection unit, the The living body detection unit is used for performing living body detection on the face images captured by the camera module 1011 .

The functional modules of the access control system in the above-mentioned embodiment 2 are basically the same as those in the first embodiment, the difference is only in the setting position of the smart terminal, so details will not be repeated this time.

In practical application, the smart terminal described in the embodiment of the present utility model can be a mobile phone, a tablet computer or a notebook computer, etc.

Specifically, the physical structure of the smart terminal described in the embodiments of the present invention may include: a display module, a WiFi (wireless fidelity, wireless fidelity) module, a computer module, and a power supply.

Further, the computer module includes a memory with one or more computer-readable storage media, and a processor with one or more processing cores.

Wherein: the memory can be used to store software programs and modules, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The processor is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire intelligent terminal, and executes the intelligent terminal by running or executing software programs and/or modules stored in the memory and calling data stored in the memory. various functions and process data, so as to monitor the mobile phone as a whole. Optionally, the processor may include one or more processing cores; preferably, the processor may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modulation The demodulation processor mainly handles wireless communication.

The display module can be used to display information input by the user or provided to the user and various graphical user interfaces of the smart terminal. These graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof. The display module may include a display panel. Optionally, the display panel may be configured in the form of LCD (Liquid Crystal Display, liquid crystal display), OLED (Organic Light-Emitting Diode, organic light-emitting diode), or the like.

WiFi is a short-distance wireless transmission technology. Smart terminals can help users send and receive network data streams through WiFi modules.

The power supply of the smart terminal can be logically connected to the processor through the power management system, so that functions such as charging, discharging, and power consumption management can be realized through the power management system. The power supply may also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and any other components.

In order to simplify the hardware structure of the access control system based on face recognition, an off-the-shelf tablet computer with a front camera can be used as an assembly of the camera module 101, the computer module 102 and the first display screen 103 in the embodiment of the present utility model; The guest sign-in function of the embodiment of the utility model is realized by installing an application in the computer, which improves the convenience of realizing the access control system based on face recognition.

It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence , because according to the present invention, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present utility model.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above is a description of an access control system based on face recognition provided by the utility model. For those of ordinary skill in the art, according to the idea of the utility model embodiment, there will be changes in the specific implementation and application range. In summary, the contents of this specification should not be construed as limiting the utility model.

Claims (10)

1. a kind of gate control system based on recognition of face, it is characterised in that include：

Intelligent terminal (101), face information database (102), door controller (103) and entrance guard device (104)；

The intelligent terminal (101) respectively with the face information database (102) and the door controller (103) communication link Connect, the door controller (103) communicates to connect with the entrance guard device (104)；

The door controller (103) is for the switch by sending the access control signal control entrance guard device (104)；

The intelligent terminal (101) includes：Photographing module (1011), computer module (1012)；The computer module (1012) including face identification unit, the face identification unit is used to judge that the photographing module is obtained by face alignment analysis Whether the facial image for taking is the middle head portrait for allowing gate inhibition to open for recording of the face information database (102)；The calculating Machine module (1012) by the result of determination of the face identification unit for being sent to the door controller (103) so that described Door controller (103) generates the access control signal according to the result of determination.

2. gate control system according to claim 1, it is characterised in that the computer module (1012) is also noted including face Volume unit, the face registration unit is used to carry out the facial image of user face registration, and by the face figure for succeeding in registration As being synchronized in the face information database (102).

3. gate control system according to claim 1, it is characterised in that the computer module (1012) also includes：Live body Detector unit, the In vivo detection unit is used to carry out live body inspection to the facial image that the photographing module (1011) is photographed Survey.

4. gate control system according to claim 1, it is characterised in that the intelligent terminal (101) also includes：Display module (1013)；

The display module (1013) is for showing the controlling interface of the computer module (1012), and the photographing module (1011) facial image for photographing.

5. gate control system according to claim 1, it is characterised in that the door controller (103) by network, bluetooth, Serial communication interface or relay are realized communicating to connect with the entrance guard device (104).

6. gate control system according to claim 1, it is characterised in that the gate control system also includes：

Alarm unit；The alarm unit is used for the user to illegally entering the entrance guard device (104) and reports to the police.

7. gate control system according to claim 1, it is characterised in that the gate control system also includes：

Light compensating apparatus, the light compensating apparatus are used to mend the reference object of photographing module (1011) under conditions of half-light Light.

8. gate control system according to claim 1, it is characterised in that the entrance guard device (104) is specially gate, The intelligent terminal (101) controls gate inhibition's gate.

9. gate control system according to claim 8, it is characterised in that the gate control system also includes：Bracket shell；It is described Bracket shell is arranged on a side box body of gate, and the bracket shell is used to place the intelligent terminal (101).

10. gate control system according to claim 9, it is characterised in that the bracket shell is prismatoid, the intelligence is eventually End (101) is arranged in the inclined plane of the prismatoid, and the photographing module (1011) of the intelligent terminal (101) is arranged and is oriented In the face of user come to direction.