Entrance guard face recognition terminal

Abstract

The utility model discloses an access control face recognition terminal which comprises a built-in host and an external terminal, the external terminal is electrically connected with a power supply assembly, the built-in host and the power supply assembly are electrically connected with terminal communication interfaces, the built-in host is electrically connected with a power supply module, the built-in host comprises a CPU, and the CPU is electrically connected with a data memory, a running memory, a network card, an access control communication interface and a state display screen; according to the utility model, the split design of the built-in host and the external terminal is adopted, the communication between the built-in host and the external terminal adopts an AES encryption algorithm, the external terminal is internally provided with a national secret card reader, and a database and logical operation are stored on the built-in host to be executed, so that the safety of the system is not reduced even if the external terminal is damaged; a related protection circuit is arranged between the built-in host and the external terminal, the DC-DC power supply technology is adopted, interference and short circuit damage can be resisted, system safety and reliability are improved, and the built-in host is effectively prevented from being physically attacked through the interface.

Description

Technical Field

[0001] The utility model relates to the technical field of access control, in particular to an access control face recognition terminal. Background Art

[0002] The access control face recognition terminal is a technology based on the recognition and comparison of human facial feature code information. Its working principle is to obtain the image of the face through the face recognition access control terminal camera, automatically detect the face in the captured picture, and then perform a series of facial comparisons on the captured face.

[0003] The existing access control face terminal does not have relevant encryption technology in terms of communication, which makes it vulnerable to network attacks and unauthorized access, and leads to user information leakage. It does not adopt a split design, and physical damage will cause the system to fail, and it does not support national security cards. Therefore, an access control face recognition terminal is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide a door access face recognition terminal to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: an access control face recognition terminal, comprising a built-in host and an external terminal; the external terminal is electrically connected to a power supply component, the built-in host and the power supply component are both electrically connected to a terminal communication interface, and the built-in host is electrically connected to a power module;

[0006] The built-in host includes a CPU, and the CPU is electrically connected to a data storage device, a running memory, a network card, a door access communication interface and a status display screen;

[0007] The external terminal includes a single-chip microcomputer, which is electrically connected to a corresponding terminal communication interface. The single-chip microcomputer is electrically connected to a binocular camera, an LCD true color display, a capacitive touch component, a human proximity sensor and a serial port, and the serial port is electrically connected to a national secret card reader.

[0008] Preferably, the terminal communication interface adopts AES encryption algorithm and DC-DC power supply technology, and the terminal communication interface includes a protection circuit.

[0009] Preferably, the status display screen is a monochrome microdisplay.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The utility model adopts a split design of a built-in host and an external terminal. The built-in host and the external terminal communicate using the AES encryption algorithm. The external terminal has a built-in national secret card reader. The database storage and logical operations are executed on the built-in host. Even if the external terminal is damaged, the security of the system will not be reduced. A related protection circuit is provided between the built-in host and the external terminal. The DC-DC power supply technology is adopted, which can resist interference and short-circuit damage, improve the security and reliability of the system, and effectively prevent physical attacks on the built-in host through the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic structural diagram of a door access control face recognition terminal.

[0013] In the figure: 1. Built-in host; 101. CPU; 102. Data storage; 103. Running memory; 104. Network card; 105. Access control communication interface; 106. Status display screen; 2. External terminal; 201. Single chip microcomputer; 202. Binocular camera; 203. LCD true color display screen; 204. Capacitive touch component; 205. Human proximity sensor; 206. Serial port; 207. National secret card reader; 3. Terminal communication interface; 301. Protection circuit; 4. Power supply component; 5. Power supply module. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1 The utility model provides a technical solution: a door access control face recognition terminal, comprising a built-in host 1 and an external terminal 2; the external terminal 2 is electrically connected to a power supply component 4, the built-in host 1 and the power supply component 4 are both electrically connected to a terminal communication interface 3, and the built-in host 1 is electrically connected to a power module 5;

[0016] The built-in host 1 includes a CPU 101, to which a data storage 102, a running memory 103, a network card 104, a door control communication interface 105 and a status display screen 106 are electrically connected;

[0017] The external terminal 2 includes a single-chip microcomputer 201, which is electrically connected to a corresponding terminal communication interface 3. The single-chip microcomputer 201 is electrically connected to a binocular camera 202, an LCD true color display screen 203, a capacitive touch component 204, a human proximity sensor 205 and a serial port 206. The serial port 206 is electrically connected to a national secret card reader 207. The terminal communication interface 3 adopts an AES encryption algorithm and a DC-DC power supply technology. The terminal communication interface 3 includes a protection circuit 301. The status display screen 106 is a monochrome micro display. When a human body approaches, the human proximity sensor 205 detects When the user approaches the external terminal 2, the LCD true color display screen 203 is lit and the binocular camera 202 is used to capture images. The external terminal 2 sends a human body approaching signal to the built-in host 1. The built-in host 1 controls the LCD true color display screen 203 of the external terminal 2 to superimpose and display prompt information according to the recognition mode, such as please scan your face or swipe your card. After that, the user operates according to the prompts, and the external terminal 2 takes a photo through the binocular camera 202 and transmits the photo to the built-in host 1. The built-in host 1 pre-processes the photo, then extracts the feature code, compares it with the vital sign code in the data storage device 102, and finally determines the user information of the person who scans his face.

[0018] The working principle is:

[0019] The power module 5 can convert the input voltage into the voltage required by the built-in host 1 and supply power to other modules of the built-in host 1. The built-in host 1 and the external terminal 2 are connected using two terminal communication interfaces 3. The power component 4 can convert the voltage input by the terminal communication interface 3 to supply power to the external terminal 2, and can realize data exchange communication between the built-in host 1 and the external terminal 2. Among them, the binocular camera 202 is connected to the single-chip microcomputer 201 for real-time acquisition of facial image information. The national secret card reader 207 can send the read card information to the single-chip microcomputer 201 for processing. The human body proximity sensor 205 is used to determine whether someone is trying to use the current terminal. The LCD true color display screen 203 is connected to the single-chip microcomputer 201 for system display function, which can display the image taken by the binocular camera 202 in real time. The capacitive touch component 204 is connected to the single-chip microcomputer 201. It is installed on the LCD true color display screen 203 and provides a touch input function. The status display screen 106 is a monochrome micro display, which is used to display the operating status information of the built-in host 1 and the configuration background information of the terminal. The running memory 103 provides data storage function for the CPU 101 operation. The data storage device 102 is used to save the terminal firmware program, face feature library, system configuration parameters, etc. The network card 104 is used to connect the terminal to the Ethernet. The access control communication interface 105 can realize the communication function with the access control host. The terminal communication interface 3 is provided with a protection circuit 301, which can effectively prevent physical attacks on the built-in host through the interface. The terminal communication interface 3 can be used to transmit facial photos, card information, etc. recognized by the external terminal 2 to the built-in host 1, and then the processing prompt information of the built-in host 1 is displayed on the LCD true color display screen 203 on the external terminal 2.

[0020] Workflow, when a human body approaches, the human body proximity sensor 205 detects that the user is approaching the external terminal 2, lights up the LCD true color display screen 203 and uses the binocular camera 202 to capture images, and the external terminal 2 sends the human body approach signal to the built-in host 1. The built-in host 1 controls the LCD true color display screen 203 of the external terminal 2 to superimpose and display prompt information according to the recognition mode, such as please scan your face or swipe your card. After that, the user operates according to the prompt, and the external terminal 2 takes a photo through the binocular camera 202 and transmits the photo to the built-in host 1. The built-in host 1 pre-processes the photo, and then extracts the feature code, compares it with the physical sign code in the data storage device 102, and finally determines the user information of the person who scans his face. At the same time, the facial feature information stored in the data storage device 102 is refreshed according to the weight to improve the recognition effect next time. According to the pre-configured use of the card swipe person's information to perform the next operation, such as executing the door opening operation, or sending the user information to the access control controller for further permission processing.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A door access face recognition terminal, comprising a built-in host (1) and an external terminal (2); Features: The external terminal (2) is electrically connected to a power supply assembly (4), the built-in host (1) and the power supply assembly (4) are both electrically connected to a terminal communication interface (3), and the built-in host (1) is electrically connected to a power supply module (5); The built-in host (1) comprises a CPU (101), and the CPU (101) is electrically connected to a data storage device (102), an operating memory (103), a network card (104), a door control communication interface (105) and a status display screen (106); The external terminal (2) comprises a single-chip microcomputer (201), the single-chip microcomputer (201) is electrically connected to a corresponding terminal communication interface (3), the single-chip microcomputer (201) is electrically connected to a binocular camera (202), an LCD true color display screen (203), a capacitive touch component (204), a human proximity sensor (205) and a serial port (206), and the serial port (206) is electrically connected to a national secret card reader (207).

2. The access control face recognition terminal according to claim 1, Features: The terminal communication interface (3) adopts an AES encryption algorithm and a DC-DC power supply technology, and the terminal communication interface (3) comprises a protection circuit (301).

3. The access control face recognition terminal according to claim 1, Features: The status display screen (106) is a monochrome micro display.

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