Access control method and device

Abstract

The application belongs to the technical field of security access management, and particularly relates to a gate pass management method and device. The device comprises a gate, first and second face recognition devices respectively arranged at the outer side and the inner side of the gate, a control unit connected with the gate and the two face recognition devices, a fingerprint recognition device arranged at least at the entrance side of the gate, and a portable request device. The portable request device is connected with the gate through wireless communication means, so that it can transmit signals to the control unit through the gate. In the storage module of the control unit, the fingerprint feature data, the face feature data of authorized personnel and the ID data of the portable request device configured for the authorized personnel are pre-recorded and stored. The fingerprint feature data, the face feature data of each authorized personnel and the ID data of the portable request device held by the authorized personnel are independently associated and matched. The application can improve the security condition of gate pass management.

Description

Technical Field

[0001] This invention belongs to the field of secure access management technology, specifically relating to access control management methods and devices. Background Technology

[0002] Access control systems are intelligent entry and exit security management systems that integrate technologies such as automatic identification, electronic control, and network communication. Their core function is to manage access permissions according to rules such as "who, when, and which door they can enter / exit," and to record the passage status. They are widely used in office buildings, residential communities, factories, banks, and other scenarios. The operation of existing access control systems mostly relies on the linkage between their control system and identity verification system. After determining whether authentication is successful, they control the gate's action (such as retracting or rotating the barrier), thus selectively opening / closing the entry / exit channel. The identity verification system involved often relies on one of the following methods: fingerprint authentication, RFID card authentication, Bluetooth authentication, or facial recognition authentication.

[0003] In access control systems that use facial recognition verification to manage and control access, it is common to encounter situations where multiple people are near the gate simultaneously. This can easily lead to the facial recognition device simultaneously capturing all or part of the facial features / images of these multiple individuals. This can increase the workload of the system in facial feature comparison processing, resulting in higher processing noise and a higher false positive rate. Furthermore, it can cause discrepancies between those requesting passage and those granted passage, leading to low security and reliability, and causing confusion in the management of entry and exit. Additionally, if priority is given to those standing behind, the gate may open and allow those in front to pass, preventing those behind from passing or causing them to pass along with those in front, resulting in a discrepancy between those granted passage and those actually passing. Summary of the Invention

[0004] The access control management method and device provided by the present invention can improve the security of access control management.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows.

[0006] The access control system includes a fixed turnstile mounted on the ground, a first face recognition device and a second face recognition device respectively located on the outer and inner sides of the turnstile, and a control unit connected to the turnstile and the two face recognition devices. The control unit includes at least a communication module, a storage module, a setting module, and a processing module. Each face recognition device includes a camera assembly for acquiring face image data and a display component for displaying the face image data. The camera assembly of the first face recognition device can acquire face images of people near the outer side and display them through the associated display component; similarly, the camera assembly of the second face recognition device can acquire face images of people near the inner side and display them through the associated display component.

[0007] It also includes a fingerprint recognition device located at least on the outer side of the turnstile, and a portable request device. The portable request device is connected to the turnstile wirelessly, enabling it to transmit signals to the control unit via the turnstile. The control unit's storage module pre-stores the fingerprint and facial feature data of all authorized personnel, as well as the ID data of their respective portable request devices. This allows for independent association and matching of each authorized person's fingerprint and facial feature data with their portable request device's ID data, thereby obtaining / forming a source database.

[0008] Optionally, the system also includes card reader 1 and card reader 2, respectively located on the outer and inner sides of the gate, as well as a portable smart card. The portable smart card can send request commands to the control unit via the card reader. The portable smart card can be pre-set with usage permissions and validity periods via the control unit, and the usage permissions include at least one entry request and at least one exit request. When the portable smart card comes into contact with card reader 1, it reads the entry request; when it comes into contact with card reader 2, it reads the exit request.

[0009] Generally, the permissions are set to include only one entry request and one exit request. The validity period requires that the time interval between the two requests (entry and exit requests) cannot exceed t hours, or that the time between the time of the entry request and the set completion time cannot exceed s minutes. If the timeout is exceeded, the permission will expire.

[0010] Optionally, a through-beam sensor is installed on the inner wall of the inner side of the gate.

[0011] An access control management method based on the above-mentioned access control management device includes the following process: I.1 When an authorized person approaches the outer side area of ​​the gate, their portable request device can automatically or manually connect to the gate, and at the same time, the gate can send a request command to the control unit to retrieve fingerprint feature data and facial feature data that are associated with and matched with the ID of the corresponding portable request device. II.1 After receiving the request command, the control unit will retrieve the fingerprint feature data and facial feature data that correspond to each portable requesting device that issued the command, and control the first facial recognition device and fingerprint recognition device to obtain the facial feature data and fingerprint feature data respectively, and transmit them to the control unit. After receiving facial feature data and fingerprint feature data, the III control unit will determine whether the acquired facial feature data and the acquired fingerprint feature data match, and will give different feedback based on the determination result.

[0012] Optionally, the camera of the first face recognition device can be flipped up and down, and the camera in the initial state is kept in the downward flipped state and cannot perform face recognition. In process II.1, after receiving the fingerprint feature data transmitted by the fingerprint recognition device, the control unit will determine whether the received fingerprint feature data can match a certain retrieved fingerprint feature data, and perform the following processing based on the determination result: i) If the received fingerprint feature data can match a certain fingerprint feature data retrieved, the control unit causes the camera of the first face recognition device to flip upward, and after recognizing and obtaining the face feature data, it flips downward back to the initial state and enters process III. ii) If the received fingerprint feature data does not match the retrieved fingerprint feature data, the control unit will sound an alarm and remind the person who entered the fingerprint to leave. After the fingerprint recognition device reacquires and transmits the (reacquired) fingerprint feature data to the control unit, it will re-determine whether the received fingerprint feature data can match a certain retrieved fingerprint feature data.

[0013] Optionally, in process III: i) If the facial feature data is determined to match the fingerprint feature data, the control unit switches the gate from the prohibited state to the pass state and changes the status of the person passing through from OUT to IN; ii) If it is determined that the facial feature data does not match the fingerprint feature data, the control unit will issue a voice reminder and an alarm sound; The voice prompts include instructing the person shown on the display of the first face recognition device to move backward and instructing the person who entered the fingerprint to look in the direction of the camera lens of the first face recognition device. After the first face recognition device reacquires and transmits the (reacquired) face feature data to the control unit, it re-determines whether the acquired face feature data matches the acquired fingerprint feature data.

[0014] Optionally, it is based on the access control device with through-beam sensors mentioned above, and after the gate switches from the prohibited state to the allowed state in process III i), the control unit will determine whether a person has passed through based on the sensing signal fed back by the through-beam sensor, and perform the following processing: ①If it is determined that a person has passed through successfully, the gate will switch from the pass state back to the stop state, and the status of the person who passed through will be changed from OUT to IN; ② If it is determined that no one has passed through successfully, the gate will be switched from the pass state to the prohibition state after a delay of T seconds, and an abnormality record will be made.

[0015] Optionally, the following process may also be included: IV. When a person approaches the inner side area of ​​the gate, the second face recognition device can acquire face feature data and transmit it to the control unit. After receiving facial feature data transmitted from the second facial recognition device, the V control unit will determine whether the person providing the facial feature data is an authorized person, and will perform the following processing: i) If the person is an authorized person, determine whether the person's status is IN; ① If it is IN, the control unit switches the gate from the prohibited state to the allowed state and changes the status of the person passing through from IN to OUT; ② If the status is OUT, the control unit will issue an alarm and, after recording the abnormality, switch the gate from the prohibited state to the passable state, and keep the status of the person passing through as OUT; ii) If the person is unauthorized, issue a voice prompt and an alarm tone.

[0016] Optionally, it is based on the access control device with card reader 2 mentioned above, and in process V ii), the voice prompt includes asking the person shown on the display of the second face recognition device to place their portable smart card on card reader 2 and proceed to the following process: ① If the card reader fails to read valid portable smart card information within N seconds after the voice prompt ends, the control unit will issue a honey alarm and remind the administrator to handle the situation on-site. ② During the voice prompt and within N seconds after its end, if the card reader 2 reads valid portable smart card information, the control unit switches the gate from the prohibited state to the pass state and records that the portable smart card's departure request permission has been exhausted; if the card reader 2 reads a request command issued by an invalid portable smart card, it will issue a honey alarm and remind the administrator to handle the situation on-site.

[0017] Optionally, it is based on the access control management device containing the card reader mentioned above, and includes the following process: I.2 When an unauthorized person approaches the outer side of the gate, the first facial recognition device can acquire facial feature data and transmit it to the control unit; If, before the control unit determines that the provider of the facial feature data is an unauthorized person, the person has placed their portable smart card on the card reader, then proceed to the following process II.2; If the control unit determines that the provider of the facial feature data is an unauthorized person, and the card reader fails to read the valid portable smart card information, the control unit will remind the person to place their portable smart card on the card reader. II.2 If the control unit receives a request instruction from a valid portable smart card read by the card reader, the gate is switched from the prohibited state to the pass state, and the access permission of the portable smart card is recorded as exhausted. If the control unit receives a request command from an invalid portable smart card read by the card reader, it will issue a honey alarm and alert the administrator to handle the situation on-site. Attached Figure Description

[0018] Figure 1 This is a top view of the device involved in this application.

[0019] Figure 2 This is a three-dimensional structural diagram of the device involved in this application.

[0020] Figure 3 This is a schematic diagram of an embodiment of the management method involved in this application.

[0021] Figure 4 This is a schematic diagram of Embodiment 2 of the management method involved in this application.

[0022] Figure 5 This is a schematic diagram of Embodiment 3 of the management method involved in this application.

[0023] Figure 6 This is a schematic diagram of Embodiment 4 of the management method involved in this application.

[0024] In the diagram: 10 turnstile; 20 first face recognition device; 30 second face recognition device; 40 fingerprint recognition device; 50 card reader one; 60 card reader two; 70 through-beam sensor. Detailed Implementation

[0025] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0026] like Figure 1 , Figure 2 The access control device shown includes a gate 10 fixed to the ground, a first face recognition device 20 and a second face recognition device 30 respectively installed on the outer and inner sides of the gate 10, and a control unit (not shown in the figure) connected to the gate 10 and the two face recognition devices 20 and 30. The control unit includes a power module, a communication module, a storage module (including a database submodule), a setting module, and a processing module. It can analyze and process feature data such as facial images transmitted from the face recognition devices, and make judgments to control the opening and closing of the gate 10. As with existing technology, the face recognition device includes a camera assembly for collecting facial image data and a display component for displaying the facial image data. The camera assembly of the first face recognition device 20 can collect facial images of people near the outer side and display them through the associated display component; similarly, the camera assembly of the second face recognition device 30 can collect facial images of people near the inner side and display them through the associated display component.

[0027] The access control device involved in this application also includes at least a fingerprint recognition device 40 located on the outer side of the gate 10, and a portable request device. The portable request device is connected to the gate 10 via wireless communication, enabling it to transmit signals to the control unit through the gate 10. The storage module of the control unit pre-records and stores the fingerprint feature data, facial feature data, and ID data of the portable request devices configured for all authorized personnel (i.e., authorized persons, hereinafter the same). The control unit (through a setting module) independently associates the fingerprint feature data, facial feature data, and ID data of the portable request device held by each authorized person, thus obtaining / forming a source database / identity information data package. Therefore, the source database stores multiple data packets (i.e., sub-packets) that correspond one-to-one with each authorized person. Each data packet corresponds to one authorized person and contains fingerprint feature data, facial feature data, and ID data of the portable request device associated with that authorized person and linked together with each other. For example, the source database may pre-store fingerprint and facial feature data of individuals a, b, and c, as well as the ID data of portable request devices individually / independently configured for each of a, b, and c. The requirement is to correlate and match a's fingerprint and facial feature data with the ID data of the portable request device held by a to form one data packet (sub-packet, hereinafter the same); to correlate and match b's fingerprint and facial feature data with the ID data of the portable request device held by b to form another data packet; to correlate and match c's fingerprint and facial feature data with the ID data of the portable request device held by c to form a third data packet; and so on. If there are other individuals, the same pre-storage and correlation matching requirements are applied to form other data packets. Finally, the data packets corresponding to multiple authorized individuals are aggregated into the authorized person identity information database of the source database. In the following description, unless otherwise specified, a, b, and c are considered authorized individuals.

[0028] The portable request device can be an IC card (virtual / physical card), also known as a smart card; or an application (APP) that can be installed on mobile communication devices (such as mobile phones, smartwatches / bracelets, etc.).

[0029] The access control device may further include card reader 50 and card reader 60 respectively installed on the outer and / or inner sides of the gate 10, as well as (multiple) portable smart cards (optionally IC cards). The portable smart card can send request commands (including request commands to activate the gate 10) to the control unit through the card reader (i.e., card reader 50 and card reader 60). Multiple through-beam sensors 70 may also be installed on the inner wall of the inner side of the gate 10.

[0030] The use of the portable smart card requires pre-setting of usage permissions by the (access control) administrator. Specifically, the administrator needs to connect one or more portable smart cards (via the card reader of the management terminal) to the control unit, and set the usage permissions and validity period of the portable smart card through the control unit's setting module / configuration module, before distributing them to one or more people (one card per person). Generally, each portable smart card is only granted one entry request permission (content) and one exit request permission (content), and the time interval between the two requests (content) cannot exceed t (which can be 8, 10, or 12 hours), and the time between the entry request and the completion of the setting cannot exceed s (which can be 3, 5, or 10, and can be flexibly set according to time periods, or even 0.5 or 1.5 minutes, etc.). If the timeout is exceeded, the permission expires. When the portable smart card comes into contact with the card reader 50, it reads the entry request; when it comes into contact with the card reader 60, it reads the exit request.

[0031] like Figures 3 to 6 As shown, this application also relates to an access control management method based on the aforementioned access control management device, which includes the following processes / steps: I.1 Authorized personnel approach the outer side area of ​​the turnstile 10 (which may be as follows) Figure 1 When the area covered by the gate is O as the center and R as the radius, the portable request device carried by it can be automatically or manually connected to the gate 10, and at the same time the gate 10 can send a request command to the control unit to retrieve the fingerprint feature data and facial feature data that are associated with and matched with the ID of the corresponding portable request device. II.1 After receiving the request command, the control unit will retrieve the fingerprint feature data and facial feature data (hereinafter referred to as the source data group) that correspond to each portable requesting device that issued the command, and control the first facial recognition device 20 and the fingerprint recognition device 40 to operate (simultaneously or sequentially) to obtain the (temporarily collected) facial feature data and (temporarily collected) fingerprint feature data respectively, and transmit them to the control unit. After receiving the (temporarily collected) facial and fingerprint feature data, the III control unit determines whether the acquired facial and fingerprint feature data match and provides different feedback based on the determination result. That is, after receiving the (temporarily collected) facial and fingerprint feature data, the control unit compares them separately with the facial and fingerprint feature data retrieved from various source data groups to determine whether the acquired (temporarily collected) facial and fingerprint feature data corresponds to and matches the retrieved facial and fingerprint feature data, and provides different feedback based on the determination result. Therefore, the aforementioned "determining whether the acquired facial and fingerprint feature data match" means comparing the acquired facial and fingerprint feature data with the retrieved (related) facial and fingerprint feature data to determine whether the acquired facial and fingerprint feature data matches / belongs to the same person (biometric data belonging to the same person), rather than originating from different people.

[0032] Specifically, in process III: i) If it is determined that the obtained facial feature data matches the fingerprint feature data (i.e., they belong to the same authorized person), the control unit switches the gate 10 from the prohibited state to the pass state and changes the status of the person passing through from OUT to IN; ii) If it is determined that the facial feature data and fingerprint feature data do not match (i.e., they belong to different people), the control unit will issue a voice reminder and an alarm sound; The voice prompts include calling the person shown on the display of the first face recognition device 20 to move backward and calling the person who entered the fingerprint to look in the direction of the camera lens of the first face recognition device 20. After the first face recognition device 20 reacquires and transmits the reacquired face feature data to the control unit, it re-determines whether the acquired face feature data matches the acquired fingerprint feature data (whether it belongs to / comes from the same authorized person).

[0033] It can be seen that the gate 10 is equipped with an audio device and an alarm device, and the audio device and alarm device are connected to the control unit, so that audio signals such as broadcast voice and alarm sound can be output to the outside world.

[0034] For example, when three individuals, a, b, and c, stand simultaneously in the outer area of ​​the gate 10, their respective portable request devices will automatically connect to the gate 10 (wirelessly). The gate 10 can then send requests to the control unit to retrieve fingerprint and facial feature data that match the IDs of their respective portable request devices. Upon receiving these requests, the control unit will retrieve the corresponding fingerprint and facial feature data from the source data set. Specifically, it will retrieve sub-packets containing a's fingerprint and facial feature data and the ID data of their portable request device (sub-packet one); b's fingerprint and facial feature data and the ID data of their portable request device (sub-packet two); and c's fingerprint and facial feature data and the ID data of their portable request device (sub-packet three). Simultaneously, the control unit also controls the first face recognition device 20 and the fingerprint recognition device 40 to act / respond, so as to obtain the face feature data and fingerprint feature data of one or more of the three persons a, b, and c respectively (temporarily collected), and immediately transmit them to the control unit.

[0035] In the first scenario: if the control unit controls the first face recognition device 20 and the fingerprint recognition device 40 to respond and respectively (temporarily acquire) the face feature data and fingerprint feature data of a, and transmit them back to the control unit; then the control unit will compare and match the temporarily acquired face feature data and fingerprint feature data of a with the retrieved data of sub-packet one, sub-packet two, and sub-packet three, and make different feedback based on the judgment result (that is, if the control unit determines that the acquired face and fingerprint feature data can match sub-packet one, it will switch the gate 10 from the prohibited state to the pass state, and change the state of a from OUT to IN).

[0036] In the second scenario: If the control unit controls the first face recognition device 20 and the fingerprint recognition device 40 to respond, and respectively (temporarily acquire) the face feature data of person a and the fingerprint feature data of person c, and transmit them back to the control unit; then the control unit will compare and match the temporarily acquired face feature data of person a and fingerprint feature data of person c with the retrieved data from sub-packet one, sub-packet two, and sub-packet three, and make different feedback based on the judgment result (issue voice prompts and alarm sounds). The voice prompts include calling the person shown on the display of the first face recognition device 20 (i.e., person a) to move backward and calling the person who entered the fingerprint (i.e., person c) to look in the direction of the camera lens of the first face recognition device 20. During this period, after the first face recognition device 20 reacquires and transmits the reacquired face feature data of c to the control unit, it re-determines whether the acquired face feature data of c and the acquired fingerprint feature data of c match one of the three sub-packets retrieved. When it is determined that they match sub-packet three, the gate 10 will switch from the prohibited state to the pass state, and the state of c will be changed from OUT to IN.

[0037] When the access control device is equipped with the through-beam sensor 70, after the gate 10 in process III (i) switches from the prohibited state to the allowed state, the control unit will also determine whether a person has passed through based on the sensing signal fed back by the through-beam sensor 70, and perform the following processing: ① If it is determined that a person has passed through successfully, the gate 10 is switched from the pass state back to the prohibition state, and the status of the person passing through is changed from OUT to IN; ② If it is determined that no one has passed through successfully, after a delay of T seconds (within 5 seconds), the gate 10 is switched from the passage state back to the prohibition state, and an abnormality is recorded.

[0038] Furthermore, the first face recognition device 20 and the fingerprint recognition device 40 can operate sequentially, i.e., perform biometric data collection operations sequentially. During this process, the camera of the first face recognition device 20 can be flipped up and down, and the camera of the first face recognition device 20 is kept in a downward-flipped state in its initial / original state, preventing face recognition in the initial state. Specifically, in process II.1, after receiving the fingerprint feature data transmitted from the fingerprint recognition device 40, the control unit will determine whether the received fingerprint feature data matches one of the retrieved fingerprint feature data (one or more), and will perform the following processing based on the determination result: i) If the received fingerprint feature data can match a certain fingerprint feature data retrieved, the control unit causes the camera of the first face recognition device 20 to flip upward, and after recognizing and obtaining the face feature data, it flips downward to the initial state and enters process III. ii) If the received fingerprint feature data does not match the retrieved fingerprint feature data, the control unit will sound an alarm and remind the person who previously registered their fingerprint to leave the external port of the gate 10. After the fingerprint recognition device 40 reacquires and transmits the reacquired fingerprint feature data to the control unit, it will re-determine whether the received fingerprint feature data can match a certain retrieved fingerprint feature data. That is, it may cycle between i) and ii) of process II.1.

[0039] The aforementioned further optimized solution can suppress the situation where the first face recognition device 20 continuously responds to and acquires invalid facial feature data, thereby reducing the noise of the control unit and lowering processing power consumption, and improving the accuracy of judgment. Following the first scenario described above, after receiving fingerprint feature data of 'a' transmitted from the fingerprint recognition device 40, the control unit will determine whether the received fingerprint feature data can match the fingerprint feature data in one of the three retrieved sub-packets, and will perform the following processing: Since the received fingerprint feature data is of 'a', which can match the fingerprint feature data of one of the retrieved sub-packets, the control unit will immediately cause the camera of the first face recognition device 20 to flip upwards, and after recognizing and acquiring the facial feature data of 'a' or possibly someone else, it will flip downwards to the initial state and enter process III.

[0040] Conversely, if the fingerprint feature data is entered by person d (an unauthorized person), the control unit will sound an alarm because d's fingerprint feature data cannot match any of the fingerprint feature data contained in the three sub-packages retrieved. This will remind the person who entered the fingerprint (i.e., person d) to leave the external port of the gate 10. After the fingerprint recognition device 40 reacquires and transmits the reacquired fingerprint feature data to the control unit, it will re-determine whether the received fingerprint feature data can match any of the fingerprint feature data contained in the three sub-packages retrieved.

[0041] The processes I.1 and II.1 mentioned above are for authorized personnel. The following will introduce the processes I.2 and II.2 for unauthorized personnel. Therefore, processes I.1 and II.1 can be understood as being in parallel with processes I.2 and II.2.

[0042] The implementation of processes I.2 and II.2 requires an access control management device containing a card reader 50 and a portable smart card (also a type of IC card), and includes the following processes: I.2 When an unauthorized person approaches the outer side of the gate 10, the first face recognition device 20 can acquire their facial feature data and transmit it to the control unit; If, before the control unit determines that the provider of the facial feature data is an unauthorized person, the person has placed their portable smart card on the card reader 50, then proceed to the following process II.2; If the card reader 50 fails to read valid portable smart card information after the control unit determines that the provider of the facial feature data is an unauthorized person, the control unit will remind the person to place their portable smart card on the card reader 50. II.2 If the control unit receives a request instruction from a valid portable smart card read by the card reader 50, then the gate 10 is switched from the prohibited state to the pass state, and the access permission of the portable smart card is recorded as exhausted. If the control unit receives a request command from an invalid portable smart card read by the card reader 50, it will issue a honey alarm and remind the administrator to handle the situation on-site.

[0043] The access control management method involved in this application also includes the following processes: IV. When personnel (including authorized and unauthorized personnel) approach the inner side area of ​​the gate 10, the second face recognition device 30 can acquire face feature data and transmit it to the control unit; After receiving the facial feature data transmitted by the second facial recognition device 30, the control unit V will determine whether the person providing the facial feature data is an authorized person, and perform the following processing: i) If the person is an authorized person, determine whether the person's status is IN; ① If it is IN, the control unit switches the gate 10 from the prohibited state to the pass state and changes the status of the person passing through from IN to OUT; ② If it is OUT, the control unit will issue an alarm and, after recording the abnormality, switch the gate 10 from the prohibited state to the passable state, and keep the status of the person passing through OUT; ii) If the person is unauthorized, issue a voice prompt and an alarm tone.

[0044] At that time, based on the technical solution of the access control management device containing the card reader 2 60 and the portable smart card, the process V ii) can be specifically set as follows: the voice prompt content includes asking the person shown on the display end of the second face recognition device 30 to place their portable smart card on the card reader 2 60 and proceed to the following process.

[0045] ① Within N seconds (within 5, preferably within 3) after the voice prompt ends; If the card reader 260 fails to read valid portable smart card information, the control unit issues a honey alarm and alerts the administrator to handle the situation on-site. ② During and for N seconds after the voice prompt; If the card reader 2 60 reads valid portable smart card information, the control unit switches the gate 10 from the restricted state to the pass state and records that the portable smart card's departure request instruction permission has been exhausted. If the card reader 260 reads a request command issued by an invalid portable smart card, it will issue a honey alarm and remind the administrator to handle the situation on-site.

[0046] Therefore, authorized personnel only need to pass facial recognition to open the gate 10 and then leave promptly; unauthorized personnel need to read a valid portable smart card through the card reader 60 to open the gate 10 and then leave promptly.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Many aspects of the present invention can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An access control device, comprising a gate (10) fixedly installed on the ground, a first face recognition device (20) and a second face recognition device (30) respectively installed on the outer and inner sides of the gate (10), and a control unit connected to the gate (10) and the two face recognition devices; the control unit includes a communication module, a storage module, a setting module and a processing module; characterized in that: It also includes a fingerprint recognition device (40) located at least on the outside of the gate (10), and a portable request device; the portable request device is connected to the gate (10) via wireless communication, enabling it to transmit signals to the control unit through the gate (10); the storage module of the control unit pre-records and stores the fingerprint feature data, facial feature data and ID data of the portable request device configured for the authorized personnel; so that the fingerprint feature data, facial feature data and ID data of the portable request device held by each authorized personnel are independently associated and matched.

2. The access control device according to claim 1, characterized in that: It also includes a card reader (50) and a card reader (60) respectively located on the outer and inner sides of the gate (10), as well as a portable smart card; the portable smart card can send request instructions to the control unit through the card reader; The portable smart card can be pre-set with the usage rights and validity period through the control unit, and the usage rights include at least one entry request permission and at least one exit request permission; When the portable smart card comes into contact with card reader one (50), it reads an entry request; when it comes into contact with card reader two (60), it reads a departure request.

3. The access control device according to claim 1, characterized in that: A through-beam sensor (70) is installed on the inner wall of the inner side of the gate (10).

4. The access control management method based on the access control management device according to claim 1, characterized in that, The process includes the following: I.1 When an authorized person approaches the outer side area of ​​the gate (10), the portable request device carried by the authorized person can be automatically or manually connected to the gate (10), and at the same time, the gate (10) can send a request command to the control unit to retrieve the fingerprint feature data and facial feature data that are associated with and matched with the ID of the corresponding portable request device. II.1 After receiving the request command, the control unit will retrieve the fingerprint feature data and facial feature data that correspond to each portable requesting device that issued the command, and control the first facial recognition device (20) and fingerprint recognition device (40) to obtain the facial feature data and fingerprint feature data respectively, and transmit them to the control unit. After receiving facial feature data and fingerprint feature data, the III control unit will determine whether the acquired facial feature data and the acquired fingerprint feature data match, and will give different feedback based on the determination result.

5. The access control management method according to claim 4, characterized in that, The camera of the first face recognition device (20) can flip up and down, and the camera in the initial state is kept in the downward flipped state, so that face recognition cannot be performed. In process II.1, after receiving the fingerprint feature data transmitted by the fingerprint recognition device (40), the control unit will determine whether the received fingerprint feature data can match a certain retrieved fingerprint feature data, and perform the following processing based on the determination result: i) If the received fingerprint feature data can match a certain fingerprint feature data retrieved, the control unit causes the camera of the first face recognition device (20) to flip upward, and after recognizing and obtaining the face feature data, it flips downward to the initial state and enters process III. ii) If the received fingerprint feature data does not match the retrieved fingerprint feature data, the control unit will sound an alarm and remind the person who entered the fingerprint to leave. After the fingerprint recognition device (40) reacquires and transmits the fingerprint feature data to the control unit, it will re-determine whether the received fingerprint feature data can match a certain retrieved fingerprint feature data.

6. The access control management method according to claim 4 or 5, characterized in that, In process III: i) If it is determined that the facial feature data matches the fingerprint feature data, the control unit switches the gate (10) from the prohibited state to the pass state and changes the status of the person passing through from OUT to IN; ii) If it is determined that the facial feature data does not match the fingerprint feature data, the control unit will issue a voice reminder and an alarm sound; The voice prompts include calling the person shown on the display of the first face recognition device (20) to move backward and calling the person who entered the fingerprint to look in the direction of the camera lens of the first face recognition device (20). After the first face recognition device (20) reacquires and transmits the face feature data to the control unit, it re-determines whether the acquired face feature data matches the acquired fingerprint feature data.

7. The access control management method according to claim 6, characterized in that, Based on the access control device described in claim 3, and after the gate (10) in process III (i) switches from the prohibited state to the allowed state, the control unit will determine whether a person has passed through based on the sensing signal fed back by the through-beam sensor (70), and perform the following processing: ①If it is determined that a person has passed through successfully, the gate (10) is switched from the pass state back to the prohibition state, and the status of the person passing through is changed from OUT to IN; ②If it is determined that no one passes through smoothly, after a delay of T seconds, the gate (10) is switched from the pass state back to the prohibition state, and an abnormality record is made.

8. The access control management method according to claim 4, characterized in that, It also includes the following processes: IV When a person approaches the inner side area of ​​the gate (10), the second face recognition device (30) can obtain face feature data and transmit it to the control unit; After receiving the facial feature data transmitted by the second facial recognition device (30), the V control unit will determine whether the person providing the facial feature data is an authorized person, and perform the following processing: i) If the person is an authorized person, determine whether the person's status is IN; ①If it is IN, the control unit switches the gate (10) from the prohibited state to the pass state and changes the status of the person passing through from IN to OUT; ② If it is OUT, the control unit will issue an alarm and, after recording the abnormality, switch the gate (10) from the prohibited state to the pass state, and keep the status of the person passing through as OUT; ii) If the person is unauthorized, issue a voice prompt and an alarm tone.

9. The access control management method according to claim 8, characterized in that, It is based on the access control device of claim 2, and in process V ii), the voice prompt includes asking the person shown on the display end of the second face recognition device (30) to place their portable smart card on the card reader (60) and proceed to the following process: ① If the card reader (60) fails to read valid portable smart card information within N seconds after the voice prompt ends, the control unit will issue a honey alarm and remind the administrator to handle the situation on-site. ② During the voice prompt and within N seconds after it ends, if the card reader (60) reads a valid portable smart card, the control unit switches the gate (10) from the prohibited state to the pass state and records that the permission of the portable smart card to leave request instruction has been exhausted; if the card reader (60) reads a request instruction issued by an invalid portable smart card, a honey alarm will be issued and the administrator will be reminded to handle it on site.

10. The access control management method according to claim 4, characterized in that, It is based on the access control management device as described in claim 2, and includes the following process: I.2 When an unauthorized person approaches the outside of the gate (10), the first face recognition device (20) can obtain face feature data and transmit it to the control unit; If, before the control unit determines that the provider of the facial feature data is an unauthorized person, the person has placed their portable smart card on the card reader (50), then proceed to the following process II.2; If the card reader (50) fails to read valid portable smart card information after the control unit determines that the provider of the facial feature data is an unauthorized person, the control unit will remind the person to place their portable smart card on the card reader (50). II.2 If the control unit receives a request instruction from a valid portable smart card read by card reader (50), the gate (10) is switched from the prohibited state to the pass state, and the access permission of the portable smart card is exhausted. If the control unit receives a request instruction from an invalid portable smart card read by card reader 1 (50), a honey alarm will be issued and the administrator will be notified to handle the situation on-site.

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