CN110992550A - Access control method, device, equipment and system - Google Patents
Access control method, device, equipment and system Download PDFInfo
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Abstract
The invention discloses an access control method, which is implemented by an access control device, and comprises the following steps: acquiring information to be verified of a user; the information to be verified comprises biological characteristic information to be verified or card number information to be verified; judging the working state of the central processing unit; when the central processing unit is determined to be in a normal working state, sending the information to be verified to the central processing unit for verification; when the central processing unit is determined to be in an abnormal working state, an auxiliary controller in the access control device verifies the card number information to be verified; and when the verification passes, controlling the actuating mechanism to open the door. The invention discloses an access control device, access control equipment and an access control system. By adopting the embodiment of the invention, the diversity of the identity authentication can be realized, and the door opening can still be controlled when the main board network is abnormal or crashes.
Description
Technical Field
The invention relates to the technical field of access control, in particular to an access control method, device, equipment and system.
Background
The access control system is generally used in the technical field of the existing intelligent security, and in the existing access control system, one mode is that a simple single chip microcomputer is adopted as an access processor, but the scheme does not support network transmission communication, and only local access card number management and identity comparison are carried out on the access controller. The other type is that a mainboard of a high-performance Android system and a Linux system is used as an access control processor, a user uploads identity information to a server during identity comparison, the server sends a comparison result to an access control central processing unit through a network after identity information comparison is carried out, and the access control controller sends the comparison result to the controller through a local serial port after the access control comparison simply judges the result.
The simple single chip microcomputer is adopted as an access control processor, card number storage is completed in the controller, and the door is opened after local matching, and the scheme has the following defects: the local storage space is limited, and detailed information of IC card holders and card swiping records cannot be stored in a large batch and for a long time; the access controller has simple function and single identity comparison mode, and can only adopt a card swiping mode to carry out identity comparison.
The technical scheme includes that a high-performance mainboard is used as an access control processor, card number matching is carried out on a server background, and after the card number matching is successful, the door is opened through network control, and the scheme has the following defects: identity comparison cannot be carried out under the abnormal condition of the mainboard network; this scheme requires that the mainboard function is comparatively complicated, compares the easy machine of dying more with the singlechip, will unable open the door under the condition of dying.
Disclosure of Invention
The embodiment of the invention aims to provide an access control method, device, equipment and system, which can realize the diversity of identity verification and can still control the door to be opened when a main board network is abnormal or crashed.
In order to achieve the above object, an embodiment of the present invention provides an access control method implemented by an access control device, where the access control method includes:
acquiring information to be verified of a user; the information to be verified comprises biological characteristic information to be verified or card number information to be verified;
judging the working state of the central processing unit;
when the central processing unit is determined to be in a normal working state, sending the information to be verified to the central processing unit for verification;
when the central processing unit is determined to be in an abnormal working state, an auxiliary controller in the access control device verifies the card number information to be verified;
when the central processing unit is in a normal working state and passes verification, the auxiliary controller receives an instruction sent by the central processing unit and controls an execution mechanism to open a door; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller is passed, the auxiliary controller controls the execution door opening mechanism.
Compared with the prior art, the access control method disclosed by the embodiment of the invention comprises the steps of firstly, determining a verification mode by judging the working state of the central processing unit, sending the acquired information to be verified to the central processing unit for verification when the central processing unit is in a normal working state, and storing the matched user identity information in the central processing unit, so that the biological information verification of a user can be carried out, and the confidentiality is enhanced; when the central processing unit is in an abnormal working state, the information to be verified cannot be verified, and at the moment, the local auxiliary controller only verifies the card number information to be verified, so that the leakage of the biological information of the user is avoided; and then, when the verification is passed, controlling the actuating mechanism to open the door. The access control method disclosed by the embodiment of the invention can realize the diversity of identity verification, and can still control the door to be opened when the main board network is abnormal or crashes.
As an improvement of the above scheme, before obtaining the information to be authenticated of the user, the method further includes:
acquiring a handshake instruction of the central processing unit for connection;
and carrying out data synchronization with the central processing unit.
As an improvement of the above scheme, after verifying the card number information to be verified, the method further includes:
and storing the acquired card number information to be verified and the time for acquiring the card number information to be verified.
As an improvement of the above scheme, the data synchronization with the central processing unit specifically includes:
time synchronization is carried out with the central processing unit;
and revising the white list stored in the card number management instruction according to the card number management instruction sent by the central processing unit.
In order to achieve the above object, an embodiment of the present invention further provides an access control device, including:
the authentication information acquisition unit is used for acquiring authentication information of a user; the information to be verified comprises face information to be verified or card number information to be verified;
a judging unit for judging the working state of the CPU
The communication unit is used for sending the information to be verified to the central processing unit for verification when the central processing unit is determined to be in a normal working state;
the verification unit is used for verifying the card number information to be verified when the central processing unit is determined to be in an abnormal working state;
the generating unit is used for receiving the instruction sent by the central controller and controlling the actuating mechanism to open the door when the central processor is in a normal working state and passes verification; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller passes, controlling the door opening mechanism.
Compared with the prior art, the access control device disclosed by the embodiment of the invention has the advantages that firstly, the working state of the central processing unit is judged through the judging unit to determine the verification mode, when the central processing unit is in the normal working state, the communication unit sends the information to be verified acquired by the information acquiring unit to be verified to the central processing unit for verification, and the central processing unit stores the matched user identity information, so that the biological information verification of a user can be carried out, and the confidentiality is enhanced; when the central processing unit is in an abnormal working state, the information to be verified can not be verified, and at the moment, the verification unit only verifies the card number information to be verified, so that the leakage of the biological information of the user is avoided; then, when the authentication is passed, the generation unit controls the actuator to open the door. The access control device disclosed by the embodiment of the invention can realize the diversity of identity verification, and can still control the door to be opened when the main board network is abnormal or crashes.
As an improvement of the above, the communication unit is further configured to:
acquiring a handshake instruction of the central processing unit for connection;
entrance guard's controlling means still includes:
and the data synchronization unit is used for carrying out data synchronization with the central processing unit.
As an improvement of the above-mentioned scheme, the access control device further includes:
and the local storage unit is used for storing the acquired card number information to be verified and the time for acquiring the card number information to be verified.
As an improvement of the above scheme, the data synchronization unit is specifically configured to:
time synchronization is carried out with the central processing unit;
and revising the white list stored in the card number management instruction according to the card number management instruction sent by the central processing unit.
In order to achieve the above object, an embodiment of the present invention further provides an access control device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the access control device implements the access control method according to any of the above embodiments.
In order to achieve the above object, an embodiment of the present invention further provides an access control system, including a central processing unit and the access control apparatus according to any of the above embodiments; the central processing unit is connected with the communication unit of the access control device.
Drawings
Fig. 1 is a flowchart of an access control method according to an embodiment of the present invention;
fig. 2 is another flowchart of an access control method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an access control device according to an embodiment of the present invention;
fig. 4 is a functional schematic diagram of an access control management controller according to an embodiment of the present invention;
fig. 5 is a schematic general design diagram of an access control device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an access control device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an access control system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of an access control method according to an embodiment of the present invention; the access control method is implemented by an access control device, and comprises the following steps:
s1, obtaining information to be verified of the user; the information to be verified comprises biological characteristic information to be verified or card number information to be verified;
s2, judging the working state of the central processing unit; wherein the working state comprises a normal working state and an abnormal working state;
s3, when the central processing unit is determined to be in a normal working state, sending the information to be verified to the central processing unit for verification;
s4, when the central processing unit is determined to be in an abnormal working state, the auxiliary controller in the access control device verifies the acquired card number information to be verified;
s5, when the central processing unit is in a normal working state and passes the verification, the auxiliary controller receives the instruction sent by the central processing unit and controls the actuating mechanism to open the door; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller is passed, the auxiliary controller controls the execution door opening mechanism.
It is worth to be noted that the access control method provided by the embodiment of the invention is implemented by an access control device, wherein the access control device is an auxiliary controller comprising an STM32 single-chip microcomputer and is connected with a central processing unit based on an Android mainboard. Biological identification is used in the Android mainboard, and auxiliary controller designs as the control terminal after the discernment, and the purpose prevents that the mainboard from going down after can't opening the door, adds auxiliary controller in biological identification terminal, still can open the door through auxiliary controller control after the mainboard goes down, strengthens the stability of system.
Preferably, before the information to be authenticated of the user is acquired in step S1, the method further includes the steps of:
s11, acquiring a handshake instruction of the central processing unit for connection;
and S12, carrying out data synchronization with the central processing unit.
Wherein, the data synchronization with the central processing unit specifically includes: time synchronization is carried out with the central processing unit; and revising the white list stored in the central processing unit according to the card number management command sent by the central processing unit, such as adding or deleting the white list and other revising operations.
Specifically, in step S1, the information to be verified includes biometric information to be verified or card number information to be verified, and the biometric information to be verified includes biometric information such as face information or fingerprint information.
Specifically, in step S2, the operating state of the central processing unit is determined, where the operating state includes a normal operating state and an abnormal operating state; the abnormal working state is the abnormal or down state of the central processing unit network. For example, the heartbeat packet of the central processor may be obtained to determine the operating state of the central processor.
Specifically, in step S3, when the central processing unit is in a normal operating state, the acquired information to be verified is sent to the central processing unit for verification.
Illustratively, when the central processing unit normally works, the central processing unit verifies the acquired information to be verified, and returns the verified information. The central processor stores the matched user identity information, so that the biological information of the user can be verified, and the data confidentiality is enhanced.
For example, the card number information to be verified can be acquired through an IC card reading head, and the biometric information to be verified can also be acquired through a face acquisition device/fingerprint acquisition device.
Specifically, in step S4, when the central processing unit is in an abnormal operating state, the central processing unit may be in an abnormal or down network and cannot verify the information to be verified, and the auxiliary controller verifies the acquired card number information to be verified.
Illustratively, when the central processing unit is in an abnormal working state, the card swiping information of the user can be verified locally, and the leakage of the biological information of the user can be avoided. After the card number information to be verified is verified, the method further comprises the following steps: and storing the acquired card number information to be verified and the time for acquiring the card number information to be verified.
Specifically, in step S5, when the central processing unit is in a normal operating state and the verification is passed, the central controller sends a verification pass/fail instruction to the auxiliary controller, and the auxiliary controller receives the instruction sent by the central controller. After the verified information returned by the central processing unit or the information of the card number to be verified is verified, judging whether the verification is passed; if so, controlling the actuating mechanism to open the door and informing the traffic light to light green; if not, the actuating mechanism is not controlled, and the traffic light is informed to light the red light. Preferably, the actuator is a relay.
Further, the process of the above steps S1-S5 can refer to fig. 2.
Compared with the prior art, the access control method disclosed by the embodiment of the invention comprises the steps of firstly, determining a verification mode by judging the working state of the central processing unit, sending the acquired information to be verified to the central processing unit for verification when the central processing unit is in a normal working state, and storing the matched user identity information in the central processing unit, so that the biological information verification of a user can be carried out, and the confidentiality is enhanced; when the central processing unit is in an abnormal working state, the information to be verified cannot be verified, and at the moment, only the card number information to be verified is verified locally, so that the leakage of the biological information of the user is avoided; and then, when the verification is passed, controlling the actuating mechanism to open the door. The access control method disclosed by the embodiment of the invention can realize the diversity of identity verification, and can still control the door to be opened when the main board network is abnormal or crashes.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an access control apparatus 10 according to an embodiment of the present invention; the access control device 10 includes:
a to-be-verified information obtaining unit 11 configured to obtain to-be-verified information; the information to be verified comprises face information to be verified or card number information to be verified; illustratively, the to-be-verified information obtaining unit 11 includes an IC card reading head and a biometric feature collecting device, where the IC card reading head is used to obtain the to-be-verified card number information; the biological characteristic acquisition device is acquired by a face acquisition device and/or a fingerprint acquisition device and is used for acquiring the biological characteristic information to be verified;
a judging unit 12 for judging the working state of the central processing unit; wherein the working state comprises a normal working state and an abnormal working state;
the communication unit 13 is configured to send the to-be-verified information to the central processing unit for verification when it is determined that the central processing unit is in a normal operating state;
the verification unit 14 is used for verifying the card number information to be verified when the central processing unit is determined to be in an abnormal working state;
the generating unit 15 is used for receiving the instruction sent by the central controller and controlling the executing mechanism to open the door when the central processor is in a normal working state and passes verification; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller passes, controlling the door opening mechanism.
Further, the communication unit 13 is further configured to: and acquiring a handshake instruction of the central processing unit for connection.
The access control device 10 further includes:
a data synchronization unit 16, configured to perform data synchronization with the central processing unit; the method is specifically used for: time synchronization is carried out with the central processing unit; revising a white list stored by the CPU according to the card number management command sent by the CPU;
and the local storage unit 17 is configured to store the obtained card number information to be verified and the time for obtaining the card number information to be verified.
It should be noted that the door access control device 10 according to the embodiment of the present invention is an auxiliary controller including an STM32 single chip microcomputer, and is connected to a central processing unit based on an Android motherboard. Biological identification is used in the Android mainboard, and auxiliary controller designs as the control terminal after the discernment, and the purpose prevents that the mainboard from going down after can't opening the door, adds auxiliary controller in biological identification terminal, still can open the door through auxiliary controller control after the mainboard goes down, strengthens the stability of system.
For example, the functions of the access control device 10 may refer to fig. 4, which mainly includes access control management, protocol processing, and exception management. The entrance guard management is mainly responsible for storing card numbers, managing card readers and reporting user card numbers. The protocol processing part is responsible for data interaction with the mainboard, door opening and closing control, time calibration, heartbeat packet acquisition and control of the traffic light. The abnormal control refers to that the access control can be independently performed after the main board is down, and the access control is responsible for matching local card numbers, recording card swiping information of users and reporting card swiping records of the users after the main board recovers functions.
Specifically, the communication unit 13 obtains a handshake instruction of the central processing unit to perform connection; the data synchronization unit 16 performs time synchronization with the central processing unit, and revises a white list stored in the data synchronization unit according to a card number management instruction sent by the central processing unit, for example, revises the white list by adding or deleting the white list; the judging unit 12 obtains the heartbeat packet of the central processing unit to judge the working state of the central processing unit, wherein the working state includes a normal working state and an abnormal working state.
When the central processing unit is in a normal working state, the to-be-verified information obtaining unit 11 sends the obtained to-be-verified information to the central processing unit for verification; the information to be verified comprises biological characteristic information to be verified or card number information to be verified, and the biological characteristic information to be verified comprises biological information such as face information or fingerprint information.
When the central processing unit is in an abnormal working state, the central processing unit may be in an abnormal network or down, and the information to be verified cannot be verified, and the verification unit 14 verifies the acquired card number information to be verified. After the card number information to be verified is verified, the local storage unit 17 stores the obtained card number information to be verified and the time for obtaining the card number information to be verified.
When the central processing unit is in a normal working state and passes the verification, the central controller sends a verification pass/fail instruction to the auxiliary controller, and the auxiliary controller receives the instruction sent by the central controller. When the verified information returned by the central processing unit or the information of the card number to be verified is verified, the judging unit 12 judges whether the verification is passed; when the verification is passed, the generation unit 15 controls the actuating mechanism to open the door and informs the traffic light to turn on a green light; when the authentication is not passed, the actuator is not controlled, and the generation unit 15 notifies the passing light to turn on the red light. Preferably, the actuator is a relay.
The hardware system of the access control device 10 includes a communication device, a storage device, an external device, and a card reading module. The communication device, i.e. the communication unit 13, is mainly a serial port for communicating and debugging with the motherboard. The storage device, i.e. the local storage unit 17, is an internal FLASH of the chip and an external AT24CM01, and the internal FLASH stores executable files and card-swiping records. The external AT24CM01 completes the card number storage. The external equipment comprises an electromagnetic lock, a pass lamp and the like, and is directly controlled by using GPIO.
The door access control device 10 is divided into a hardware adaptation layer and a software functional layer, and refer to fig. 5.
And initializing a hardware function and a peripheral at a hardware adaptation layer and creating a task starting function. And the software functional layer completes protocol processing, access control management and exception handling function control with the mainboard. After the program is started, the program enters a hardware adaptation layer to initialize hardware and peripheral equipment, and a starting task is created. And finishing the initialization of the protocol function layer in the starting task, wherein the initialization comprises the steps of creating a timer, a mutual exclusion lock, a task and the like, and closing the starting task after the creation is finished.
After the protocol function layer is initialized, two tasks are created: the communication protocol processing task and the card swiping module processing task. And finishing the processing of the communication protocol between the main board and the communication protocol processing task, wherein the processing comprises updating the card number, deleting the card number, heartbeat packets, time synchronization, access control and traffic light control. The processing task of the card swiping module is mainly used for completing card reading. Polling whether a user swipes the card or not in the task, and reporting the card number to the mainboard when detecting that the user swipes the card under the normal condition of the mainboard. And in an abnormal condition, the card number matching is carried out locally.
Data interaction between the Android mainboard and the MCU single chip microcomputer is realized, the MCU executes calling of the card swiping module, the communication lamp module and the like to perform corresponding processing after the mainboard sends an instruction, and the processing result is returned to the mainboard after the processing is completed.
Compared with the prior art, the access control device 10 disclosed by the embodiment of the invention firstly determines the working state of the central processing unit through the judging unit 12 to determine the verification mode, when the central processing unit is in the normal working state, the communication unit 13 sends the information to be verified acquired by the information to be verified acquisition unit 11 to the central processing unit for verification, and the central processing unit stores the matched user identity information, so that the biological information verification of the user can be carried out, and the confidentiality is enhanced; when the central processing unit is in an abnormal working state, the information to be verified cannot be verified, and at the moment, the verification unit 14 only verifies the card number information to be verified, so that the leakage of the biological information of the user is avoided; then, when the authentication is passed, the generation unit 15 controls the actuator to open the door.
The access control device 10 disclosed by the embodiment of the invention realizes dynamic management of the white list and realizes management of the backup white list in a local memory of the singlechip; saving the card swiping record and the detailed information of the IC card holder in a background server, wherein the local memory only saves the IC card number; the auxiliary controller of the single chip microcomputer is used as an auxiliary access control management method for preventing the breakdown of the main board, the auxiliary controller mainly assists the high-performance main board to perform access control management, and the main board can send results of face recognition and fingerprint recognition to the single chip microcomputer, so that the defect of single identity comparison mode is overcome; a standby list is reserved in an internal memory of the single chip microcomputer, and when the main board network is abnormal or crashes, the door can be opened only through the local card number matching of the single chip microcomputer; the problem that a traditional access controller cannot be upgraded on line is solved.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an access control device 20 according to an embodiment of the present invention. The access control apparatus 20 of this embodiment includes: a processor 21, a memory 22 and a computer program stored in said memory 22 and executable on said processor 21. The processor 21, when executing the computer program, implements the steps in each of the above described embodiments of the access control method, for example, step S1 shown in fig. 1. Alternatively, the processor 21, when executing the computer program, implements the functions of the modules/units in the above-mentioned device embodiments, such as the to-be-verified information obtaining unit 11.
Illustratively, the computer program may be divided into one or more modules/units, which are stored in the memory 22 and executed by the processor 21 to accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the access control device 20. For example, the computer program may be divided into an information obtaining unit 11 to be verified, a determining unit 12, a communication unit 13, a verifying unit 14, a generating unit 15, a data synchronizing unit 16, and a local storage unit 17, and for specific functions of each module, reference is made to the working process of the access control device 10 described in the foregoing embodiment, which is not described herein again.
The access control device 20 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The access control device 20 may include, but is not limited to, a processor 21 and a memory 22. It will be understood by those skilled in the art that the schematic diagram is merely an example of access control device 20, and does not constitute a limitation of access control device 20, and may include more or less components than those shown, or some components may be combined, or different components, for example, access control device 20 may further include input and output devices, network access devices, buses, etc.
The Processor 21 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, and the processor 21 is a control center of the access control device 20, and various interfaces and lines are used to connect various parts of the entire access control device 20.
The memory 22 may be used to store the computer programs and/or modules, and the processor 21 implements various functions of the access control device 20 by running or executing the computer programs and/or modules stored in the memory 22 and calling data stored in the memory 22. The memory 22 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 22 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The integrated module/unit of the access control device 20 may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow of the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium and used by the processor 21 to implement the steps of the above embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an access control system 30 according to an embodiment of the present invention; the access control system 30 comprises a central processing unit 31 and the access control device 10 of any one of the embodiments; the central processing unit 31 is connected with the communication unit of the access control device 10.
For the specific working process of the access control device 10 and the central processing unit 31, reference is made to the working process of each unit in the access control device 10, and details are not repeated here.
Compared with the prior art, the access control system 30 disclosed by the embodiment of the invention comprises the following steps that firstly, the access control device 10 determines the verification mode by judging the working state of the central processing unit 31, when the central processing unit 31 is in the normal working state, the access control device 10 sends the acquired information to be verified to the central processing unit 31 for verification, and the central processing unit 31 stores the matched user identity information, so that the biological information verification of the user can be carried out, and the confidentiality is enhanced; when the central processing unit 31 is in an abnormal working state, the information to be verified cannot be verified, and at this time, the access control device 10 only verifies the card number information to be verified, so that the leakage of the biological information of the user is avoided; then, when the authentication is passed, the access control device 10 controls the actuator to open the door. The access control system 30 disclosed in the embodiment of the invention can realize the diversity of identity verification, and can still control the door to be opened when the main board network is abnormal or crashes.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The access control method is characterized by being implemented by an access control device and comprising the following steps:
acquiring information to be verified of a user; the information to be verified comprises biological characteristic information to be verified or card number information to be verified;
judging the working state of the central processing unit; wherein the working state comprises a normal working state and an abnormal working state;
when the central processing unit is determined to be in a normal working state, sending the acquired information to be verified to the central processing unit for verification; the information to be verified comprises biological characteristic information to be verified or card number information to be verified;
when the central processing unit is determined to be in an abnormal working state, an auxiliary controller in the access control device verifies the acquired card number information to be verified;
when the central processing unit is in a normal working state and passes verification, the auxiliary controller receives an instruction sent by the central processing unit and controls an execution mechanism to open a door; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller is passed, the auxiliary controller controls the execution door opening mechanism.
2. The access control method of claim 1, wherein before obtaining the information to be verified of the user and determining the operating state of the central processing unit, the access control method further comprises:
acquiring a handshake instruction of the central processing unit for connection;
and carrying out data synchronization with the central processing unit.
3. The access control method of claim 1, wherein after verifying the acquired card number information to be verified, the access control method further comprises:
and storing the acquired card number information to be verified and the time for acquiring the card number information to be verified.
4. The door access control method according to claim 2, wherein the data synchronization with the central processing unit specifically includes:
time synchronization is carried out with the central processing unit;
and revising the white list stored in the card number management instruction according to the card number management instruction sent by the central processing unit.
5. An access control device, comprising:
the judging unit is used for judging the working state of the central processing unit; wherein the working state comprises a normal working state and an abnormal working state;
the authentication information acquisition unit is used for acquiring authentication information of a user; the information to be verified comprises face information to be verified or card number information to be verified;
the judging unit is used for judging the working state of the central processing unit;
the communication unit is used for sending the information to be verified to the central processing unit for verification when the central processing unit is determined to be in a normal working state;
the verification unit is used for verifying the card number information to be verified when the central processing unit is determined to be in an abnormal working state;
the generating unit is used for receiving the instruction sent by the central controller and controlling the actuating mechanism to open the door when the central processor is in a normal working state and passes verification; and when the central processing unit is in an abnormal state and the verification of the auxiliary controller passes, controlling the door opening mechanism.
6. The access control device of claim 5, wherein the communication unit is further configured to:
acquiring a handshake instruction of the central processing unit for connection;
entrance guard's controlling means still includes:
and the data synchronization unit is used for carrying out data synchronization with the central processing unit.
7. The access control device of claim 5, further comprising:
and the local storage unit is used for storing the acquired card number information to be verified and the time for acquiring the card number information to be verified.
8. The access control device of claim 6, wherein the data synchronization unit is specifically configured to:
time synchronization is carried out with the central processing unit;
and revising the white list stored in the card number management instruction according to the card number management instruction sent by the central processing unit.
9. An access control device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the access control method of any one of claims 1 to 4 when executing the computer program.
10. An access control system, comprising a central processing unit and the access control device of any one of claims 5 to 8; the central processing unit is connected with the communication unit of the access control device.
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| CN202010001828.4A CN110992550A (en) | 2020-01-02 | 2020-01-02 | Access control method, device, equipment and system |
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