CN209357127U - An access control device based on multiple biometric identification - Google Patents

Abstract

The utility model relates to a kind of entrance guard devices based on a variety of living things feature recognitions, which includes: power supply module: including main power source and backup power source, to for entire entrance guard device continued power；User biological collection apparatus module: including face acquisition camera, iris capturing camera, vena metacarpea acquisition camera and the fingerprint capturer being arranged on the door control panel of door-plate edge, to acquire face, iris, vena metacarpea and finger print information respectively；CPU module: being arranged in door control panel, including central processing unit and memory, the central processing unit are connect with user biological collection apparatus module, to carry out information comparison and issue gate inhibition's instruction；Gate inhibition's module: including electric mortiser door-control lock and access control chip, the gate inhibition that the access control chip receives central processing unit instructs the opening and closing of access control lock.Compared with prior art, the utility model has many advantages, such as that more identity informations identify, is highly-safe.

Description

An access control device based on multiple biometric identification

technical field

The utility model relates to the technical field of access control management, in particular to an access control device based on identification of multiple biological features.

Background technique

With the advancement of technology, more and more occasions choose to use access control equipment to improve security in all aspects, and there are various ways to unlock, no longer limited to using traditional keys to unlock, more use of electronic access control equipment for safety protection. Traditional electronic access control equipment can be authenticated by swiping cards and entering passwords. However, the problem brought by this traditional electronic lock is that the identity card is easily lost and the password is easily stolen. Therefore, the safety of the existing electronic access control equipment is not high, and the cost is also high, which is not conducive to popularization.

Utility model content

The purpose of this utility model is to provide an access control device based on multiple biological feature identifications in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

An access control device based on multiple biometric identification, the access control device includes:

Power supply module: including main power supply and backup power supply, used to provide continuous power supply for the entire access control device;

User biometric collection module: including face collection camera, iris collection camera, palm vein collection camera and fingerprint collection device set on the access control panel at the edge of the door panel, to collect face, iris, palm vein and fingerprint information respectively;

Central processing unit module: arranged in the access control panel, including a central processing unit and a memory, the central processing unit is connected with the user biometrics collection module for information comparison and issuing access control instructions;

Access control module: including an electric plug-in access control lock and an access control chip, the access control chip receives an access control command from the central processor to control the opening and closing of the access control lock.

The user biometric collection module also includes a plastic keyboard, a liquid crystal display, and an alarm set on the access control panel, and the plastic keyboard, liquid crystal display, and alarm are respectively connected to the central processing unit.

The plastic keyboard is provided with entry mode selection buttons, including face selection buttons, iris selection buttons, palm vein selection buttons and fingerprint selection buttons.

The access control panel is a PVC flame-retardant access control panel.

The model of the face collection camera is OV5640, the model of the iris collection camera is MI5100, the model of the palm vein collection camera is AR0130, and the model of the fingerprint collector is AS608.

The liquid crystal display is a USART HMI 5-inch liquid crystal display, and the model of the alarm is KS-SF19.

The model of the access control chip is STM32F767IGT6.

The electric access control lock is provided with a gravity sensor BMI160.

Compared with the prior art, the utility model has the following advantages:

The utility model utilizes various identification information to control the access control switch system, including face recognition, fingerprint recognition, palm vein recognition and iris recognition arranged on the device. The user can select the corresponding identification mode according to the input method, and the information collected on the identification device is transmitted to the microprocessor, and compared with the information in the access control user information database, the obtained control signal is transmitted to the access control lock, and the lock drive system will intercept this Control the signal, analyze and decide the opening and closing of the door.

Description of drawings

Fig. 1 is a block diagram of the utility model.

Fig. 2 is the functional diagram of the module of the utility model.

Fig. 3 is the actual figure of the access control device of the present invention.

Fig. 4 is the work flowchart of the present utility model.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-4, the utility model provides an access control device based on multiple biometric identifications. , fingerprint verification, palm vein verification and iris verification modes;

The operation of the whole system is inseparable from the power supply equipment, which is mainly equipped with main power supply 219 and backup power supply 220. The backup power supply is to prevent sudden power failure, which may easily cause information loss or equipment failure.

The access control system is sequentially connected to the access control chip 222 and the access lock 221 . The access control lock has a lock drive interface 223, and the access control chip is connected to the central processing unit to receive commands from the module. The central processing unit module is connected with verification, acquisition, storage, alarm and visitor registration modules, and receives and transmits commands back to each module. The access control lock of the access control system is controlled according to the access control chip, and the chip receives the unlock or close command from the central processing unit. If it is an unlock command, then open the lock drive interface of the access control lock, open the lock bolt 224, and open the door, if the command is closed, then vice versa. The unlocking or closing command of the central processing unit is generally a signal generated by the visitor registration module and a signal generated by the information verification module according to the results of other modules.

Information verification is an important part of an access control device with a biometric feature recognition function, including a variety of verification methods. There are iris 205, face 204, palm vein 203 and fingerprint 202 modes for users to choose. Taking face verification as an example, the user selects the mode of face verification, and as long as he stands in front of the collection camera 206 and points his face at the camera, information about the user's face can be obtained. The information is transmitted to the information comparison module 207, and the central processing unit will obtain the result of the information comparison in the information verification module, and the liquid crystal display 201 will also feed back the verification result. According to this result, it is fed back to the access control module. If multiple times of malicious input, the central processing unit sends an alarm command to the alarm module, turns on the alarm 225 and the buzzer 226 sends a warning, reminding the user that someone has maliciously broken in.

Information storage is an important part of an access control device with a biometric feature recognition function, and is mainly divided into a user information storage module 217 and a visitor information storage module 218 . Taking user storage as an example, when the user selects information input, the input signal will be sent to the central processor. According to the transmitted signal, the central processing unit starts the information collection function. The user enters his or her identity information in the system to perform real-name registration, and then the information is transferred to the user information storage module through the command of the central processing unit. The information storage module has its own database to store all the information of the user. The information storage module is mainly used in information comparison and information collection. The information comparison module and the information storage share a database, and the function selection is determined by the command given by the central processing unit.

Information collection is an important part of the access control equipment with biometric feature recognition function, and it is also the key to the entire access control system. The user first performs real-name registration 208, and then when collecting, the central processing unit will open the input method according to the user's choice

Capture camera 206 or fingerprint collector 213 . If the user selects the iris collection 212, the user needs to point one eye at the camera 216 to obtain iris information; if the user selects the palm vein collection 210, the user needs to point the palm at the camera 214 to obtain the palm vein information; if the user selects the face collection 211, The user needs to point the front face at the camera 215 to obtain face information. If fingerprint collection 209 is required, the user can record fingerprints on the fingerprint screen. The obtained information is sent a storage command through the central processing unit, and the information is stored in the information storage module. The database of the storage module is to store various information collected by users.

The central processing unit is the key to controlling the entire access control system, which can control the switch of acquisition, verification, storage, and access control lock. In this access control system, in addition to the user information already entered, the registration of strangers should also be considered. Therefore, the access control system also has a visitor registration content. For example, when a stranger wants to enter, select the visitor mode on the LCD screen, and the central processing unit will open the visitor registration module. Visitors need to register visitor information 227 and collect visitor information 228. This module is mainly to record the situation when strangers enter.

Example:

The access control door that adopts in the present embodiment comprises door panel 308, is arranged on the doorknob 309 on the door panel, access control lock 310 and is arranged on the hinge of door panel side, and door panel limit is provided with access control panel 307, in order to carry out human face, iris, Palm vein and fingerprint recognition. Access control panel 307 is provided with display 305, is also provided with acquisition cameras 302, 303, 304 to collect face information, iris information and palm vein information, and is provided with fingerprint collector 306 to collect fingerprint information, and the gravity on the access control lock The sensor works together. It uses elastic sensitive elements to make a cantilever displacement device, and uses elastic sensitive elements to make energy storage springs to drive electrical contacts to complete the conversion from gravity changes to electrical signals. It is based on the principle of piezoelectric effect Come to work, thereby increasing the security of the access control lock. A power supply device 301 is also provided on the door panel 308 for normal use of the device.

The utility model is especially suitable for companies and office buildings. When the staff of the company go in and out of the office, they can use their own identity information to unlock or clock in at work. And considering that in the actual situation, there will be recognition errors, so a variety of methods are used for the staff to choose to enter. When the information is recognized successfully, the words "Welcome in" or "Work hard" will be displayed. If someone maliciously identifies or identifies incorrectly many times, the words "no entry" will be displayed and accompanied by a buzzer alarm. When the staff successfully enters, the entry and exit time will be recorded, and then when the door is closed, the door lock controller receives the "close" signal and re-initializes the system to facilitate the next identification.

For example, if the user wants to enter the room, he can first select the enter button on the access control device. Then, select the face verification mode on the keyboard, the central processing unit module will send the command of the camera, and then display "please aim at the camera" on the screen, the user aligns the camera, and then the screen displays "face recognition successful" or " Face recognition failed", after the failure, the user needs to press the "Face" button again, and then perform the face recognition operation again. When the words "Face Recognition Successful" appear on the screen, the central processing unit will also issue an unlock command to the door lock, and the lock will drive and control the lock bolt, and then automatically open the door.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (8)

1. a kind of entrance guard device based on a variety of living things feature recognitions, which is characterized in that the entrance guard device includes:

Power supply module (101): including main power source and backup power source, to for entire entrance guard device continued power；

User biological collection apparatus module (102): including the face being arranged on door-plate (308) edge door control panel (307) Acquisition camera (302), iris capturing camera (303), vena metacarpea acquisition camera (304) and fingerprint capturer (306) are used To acquire face, iris, vena metacarpea and finger print information respectively；

CPU module (103): setting is in the door control panel (307), including central processing unit and memory, it is described in Central processor is connect with user biological collection apparatus module (102), to carry out information comparison and issue gate inhibition's instruction；

Gate inhibition's module (106): including electric mortiser door-control lock and access control chip, the access control chip receives central processing The gate inhibition of device instructs the opening and closing of access control lock.

2. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 1, which is characterized in that described User biological collection apparatus module (102) further includes plastics keyboard, liquid crystal display and the report being arranged on door control panel (307) Alert device, plastics keyboard, liquid crystal display and the alarm are connect with central processing unit respectively.

3. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 2, which is characterized in that described Plastics keyboard be equipped with typing mode select button, including face select button, iris select button, vena metacarpea select button and Fingerprint select button.

4. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 1, which is characterized in that described Door control panel (307) is the fire-retardant door control panel of PVC.

5. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 1, which is characterized in that described Face acquisition camera (302) model OV5640, described iris capturing camera (303) the model MI5100, it is described Vena metacarpea acquisition camera (304) model AR0130, the model AS608 of the fingerprint capturer (306).

6. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 2, which is characterized in that described Liquid crystal display is USART HMI5 cuns of liquid crystal displays, the model KS-SF19 of the alarm.

7. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 1, which is characterized in that described The model STM32F767IGT6 of access control chip.

8. a kind of entrance guard device based on a variety of living things feature recognitions according to claim 2, which is characterized in that described Electric mortiser door-control lock is equipped with gravity sensor BMI160.