CN217061074U - Access control device based on face recognition and security system - Google Patents
Access control device based on face recognition and security system Download PDFInfo
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- CN217061074U CN217061074U CN202220181862.9U CN202220181862U CN217061074U CN 217061074 U CN217061074 U CN 217061074U CN 202220181862 U CN202220181862 U CN 202220181862U CN 217061074 U CN217061074 U CN 217061074U
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Abstract
The utility model provides an entrance guard's device and security protection system based on face identification, concretely relates to security protection control technical field. The entrance guard device based on face recognition comprises a main control panel, a camera and a display screen are arranged on the main control panel, the camera and the display screen are respectively connected with the main control panel, the main control panel is further connected with at least one expansion board, and at least one entrance guard detection unit is arranged on the expansion board. The utility model discloses can reduce cost, improve face identification's efficiency.
Description
Technical Field
The utility model relates to a security protection control technical field, concretely relates to entrance guard's device and security protection system based on face identification.
Background
Present face identification entrance guard's device is through the monoblock master control board integrated whole peripheral hardware function, for example: temperature measurement, card swiping, access control opening and closing, voice prompt and the like. And the main control panel of the existing face recognition access control device mostly adopts a Linux mainboard, so that the overall cost of the face recognition access control device is increased, and if part of peripheral equipment has problems, the whole Linux mainboard is returned to the factory for maintenance, so that the liquidity of the mainboard is reduced. In the process of upgrading the main control board, the controller on the main control board needs to be adapted to the peripheral interface of the main control board again, and large labor cost needs to be invested. And the resources of the peripheral interface of the main control panel are limited, so all processing logics need to use the resources of the controller of the main control panel, which causes the speed of the AI algorithm to be slow when reasoning analysis is performed, thereby causing the efficiency of face recognition to be low.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides an access control device and a security system based on face recognition, so as to solve the problems of high cost and low face recognition efficiency in the prior art.
In a first aspect, the application provides an entrance guard's device based on face identification, including the main control panel, be provided with camera and display screen on the main control panel, camera and display screen respectively with the main control panel is connected, the main control panel still is connected with at least one expansion board, be provided with at least one entrance guard detecting element on the expansion board.
Optionally, the entrance guard detection unit includes an expansion board controller, an anti-disassembly circuit, a fire-fighting circuit and an entrance guard control circuit; the expansion board controller is respectively connected with the main control board and is used for receiving the control signal sent by the main control board and controlling the anti-dismantling circuit, the fire-fighting circuit and the access control circuit to perform corresponding actions according to the control signal; the anti-disassembly circuit is connected with the expansion board controller and is used for detecting whether the access control device based on the face recognition is disassembled; the fire fighting circuit is respectively connected with the expansion board controller and the fire fighting alarm; the entrance guard control circuit is connected with the expansion board controller and used for controlling the opening and closing state of the entrance guard device based on the face recognition.
Optionally, the tamper-proof circuit includes a first resistor, a first end of the first resistor is connected to the power supply, a second end of the first resistor is connected to the first end of the first capacitor, the first end of the first overvoltage element, the first end of the first switch, and the control interface of the expansion board controller, and a second end of the first capacitor, the second end of the first overvoltage element, and the second end of the first switch are grounded.
Optionally, the fire fighting circuit includes a second resistor, a first end of the second resistor is connected to the control interface of the expansion board controller, the second end of the second resistor is respectively connected with the first end of the third resistor and the first end of the first triode, the second end of the third resistor is respectively connected with a power supply and the first end of the fourth resistor, the second end of the first triode is connected with the first end of the second capacitor, the third end of the first triode is grounded, the second end of the fourth resistor is connected with the fire alarm, the first end of the second capacitor is also respectively connected with the first end of the second overvoltage element, the first end of the fifth resistor and the first end of the sixth resistor, the second end of the second capacitor, the second end of the second overvoltage element and the second end of the fifth resistor are grounded, and the first end of the sixth resistor is connected with the second end of the fourth resistor and the fire alarm respectively.
Optionally, the access control circuit includes an input sub-circuit and an output sub-circuit;
the input sub-circuit comprises a first access controller, and the first end of the first access controller is connected with a power supply; a second end of the first gate inhibition controller is connected with a first end of a second triode, a second end of the second triode is respectively connected with the power supply, a communication interface of the main control board and a third end of the second triode, and the third end of the second triode is grounded; the third end of the first access controller and the first end of the third capacitor are both grounded; a fourth end of the first access controller is respectively connected with a power supply, a communication interface of the expansion board controller and a second end of the third capacitor;
the output sub-circuit comprises a second gate inhibition controller, and the first end of the second gate inhibition controller is connected with a power supply; the second end of the second gate inhibition controller is connected with the first end of a third triode, the second end of the third triode is grounded, the third end of the third triode is connected with the communication interface of the expansion board controller, and the third end of the second gate inhibition controller is grounded with the first end of a fourth capacitor respectively; and the fourth end of the second gate inhibition controller is respectively connected with a power supply, a communication interface of the main control board and the second end of the fourth capacitor.
Optionally, the expansion board controller further comprises an alarm, wherein the alarm is connected with the expansion board controller and used for sending an alarm signal when receiving the control signal of the expansion board controller.
Optionally, the entrance guard detection unit further comprises a temperature detection subunit, an iris detection subunit, a fingerprint detection subunit, a communication subunit, a pickup subunit, a brightness compensation subunit, a data reading subunit, a relay and a reminding subunit, all of which are connected to the expansion board controller.
Optionally, the entrance guard device based on face recognition includes a power supply unit, and the power supply unit is connected with the main control board and the at least one expansion board respectively, and is used for supplying power to the main control board and the at least one expansion board.
Optionally, the entrance guard device based on face recognition includes a housing, and the power supply unit, the main control board and the at least one expansion board are disposed in the housing.
In a second aspect, the present application provides a security system, which includes the above-mentioned access control device based on face recognition.
The utility model discloses technical scheme has following advantage:
the access control device based on the face recognition, provided by the utility model, is provided with the expansion board and utilizes at least one access control detection unit arranged on the expansion board to carry out access control detection; if when the entrance guard detection unit (peripheral hardware) of entrance guard's device had a problem, can directly change the expansion board, avoid changing the monoblock mainboard to can reduce cost, and can improve the circulation of mainboard, and through the control resource (control interface etc.) that uses the expansion board, can also reduce the resource usage of the controller of master control board, so that improve the speed of AI algorithm when carrying out inference analysis. Therefore, the utility model discloses can reduce cost, improve face identification's efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the access control device based on face recognition provided by the present invention;
fig. 2 is a schematic structural diagram of an anti-tamper circuit in the entrance guard device based on face recognition provided by the present invention;
fig. 3 is a schematic structural diagram of a fire protection circuit in the entrance guard device based on face recognition provided by the present invention;
fig. 4 is a schematic structural diagram of an input subunit in an access control circuit of the access control device based on face recognition according to the present invention;
fig. 5 is a schematic structural diagram of an output subunit in an access control circuit of the access control device based on face recognition according to the present invention;
fig. 6 is the utility model provides a security system's schematic structure diagram.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Please refer to fig. 1, fig. 1 is a schematic structural diagram of an access control device based on face recognition according to the present invention. Specifically, the entrance guard device based on face recognition comprises a main control panel 10, wherein a camera 101 and a display screen 102 are arranged on the main control panel 10, the camera 101 and the display screen 102 are respectively connected with the main control panel 10, the main control panel 10 is further connected with at least one expansion board 20, and at least one entrance guard detection unit 201 is arranged on the expansion board 20.
In this embodiment, the expansion board 20 is provided, and at least one access control detection unit 201 provided on the expansion board 20 is used to perform access control detection; if there is a problem in the access control detecting unit 201 (peripheral device) of the access control device, the expansion board 20 can be directly replaced, and the entire main control board 10 is not replaced, so that the cost can be reduced, the circulation of the main control board 10 can be improved, and the resource usage of the controller of the main control board 10 can be reduced by using the control resources (control interface, etc.) of the expansion board 20, so as to improve the speed of the AI algorithm in performing inference analysis. Therefore, the utility model discloses can reduce cost, improve face identification's efficiency.
Optionally, the main control board 10 may be a control board with models SSA330Q and RK1109, or may be an android motherboard with other models.
Alternatively, the display screen 102 and the camera 101 may be connected to the main control board 10 by soldering pins or by providing flexible circuit boards on the main control board 10, and then the main control board 10 may be provided on the main control board 10 by gluing or by limiting with a limiting member.
Optionally, the type of the camera 101 may be lens sensors such as gc2053 and imx307, and the display screen 102 may be a 5-inch or 7-inch TFT-LCD screen.
In the embodiment, the lens sensor can be used for acquiring a high-quality face image, so that face recognition is facilitated, and the detection efficiency of the access control device is improved; the TFT-LCD screen is favorable for displaying pictures in all directions and is convenient for users to operate.
Optionally, the expansion board 20 includes at least one entrance guard detection unit 201. Wherein, can include among the entrance guard's detecting element 201: the system comprises an expansion board controller, an anti-dismantling circuit, a fire-fighting circuit, an access control circuit, a temperature detection subunit, an iris detection subunit, a fingerprint detection subunit, a communication subunit, a pickup subunit, a brightness compensation subunit, a data reading subunit, a relay and a reminding subunit.
The expansion board controller is connected with the control interface, the anti-dismantling circuit, the fire-fighting circuit, the entrance guard control circuit, the temperature detection subunit, the iris detection subunit, the fingerprint detection subunit, the communication subunit, the pickup subunit, the brightness compensation subunit, the data reading subunit, the relay and the reminding subunit of the main control board 10 respectively.
The entrance guard control device based on the face recognition further comprises an alarm, wherein the alarm is connected with the expansion board controller and used for sending out an alarm signal when receiving a control signal of the expansion board controller. The alarm may be an audible and visual alarm.
The expansion board controller is used for receiving the control signal sent by the main control board 10 and controlling the anti-dismantling circuit, the fire-fighting circuit and the entrance guard control circuit to perform corresponding actions according to the control signal; for example: the expansion board controller controls the opening and closing of the door, controls the corresponding alarm device to give an alarm, and controls the temperature detection subunit to carry out temperature measurement and other operations.
Optionally, the tamper circuit is configured to detect whether the access control device based on face recognition is detached, so as to prevent a malicious act of detaching the access control device.
Optionally, the fire protection circuit is used for detecting whether the current environment is in a fire protection alarm state, if the fire protection circuit detects that the current environment is in the fire protection alarm state, a fire protection signal is sent to the expansion board controller, and the expansion board controller controls the relay to be in a door opening state.
Optionally, the access control circuit is configured to control an on-off state of the access control device based on face recognition.
Optionally, the temperature detection subunit is configured to detect body temperature information of a user who is performing face recognition, where the temperature detection unit is a temperature sensor.
Optionally, the iris detection subunit is configured to identify iris information of the user, perform user identity authentication, cancel access restriction when the access authentication passes, and open the door. The iris information may be collected by a camera on the main control board 10, or may be collected by an independent camera.
Optionally, the fingerprint detection subunit is configured to identify fingerprint information of the user, perform user identity verification, cancel access restriction when the access verification passes, and open the door. The fingerprint information can be collected through a fingerprint sensor or a fingerprint collecting device.
Optionally, the communication subunit is configured to implement communication between the main control board 10 and the expansion board, where a communication protocol used by the communication subunit is serial communication. For example, the communication may be performed through a USB interface, and the data reading and collection between the expansion board and the main control board 10 are realized through the USB interface, which is beneficial for the user to perform access control management.
Optionally, the pickup subunit is configured to collect voice information of the user, convert the voice information into user identity information, and open the access control after verifying the user identity information. For example, the sound pickup subunit collects the voice information "zhang san" of the user, the expansion board analyzes the voice information, and after the identity information of zhang san is determined, the door is opened. The pick-up subunit may be a microphone.
Optionally, the brightness compensation subunit is configured to perform light supplement on the environment of the face recognition, where the brightness compensation subunit may be at least one adjustable LED.
Optionally, the data reading subunit may be a card reader, and the data reading subunit performs user identity recognition by reading a user ID card, and when the user identity recognition passes, the access control restriction is cancelled, and the door is opened. It should be noted that, when the data reading subunit uses the ID card, the reminding subunit will make a beep sound to prompt the action of swiping the card or the action of reading the user identification data. In addition, when the user identity recognition fails, the face recognition fails, the user access control authority fails or the access control device is damaged, the reminding subunit sends out a buzzing sound to realize the reminding function.
Optionally, the control signal sent by the expansion board controller can control the opening and closing of the relay, so that the opening and closing of the door are completed, and the access control is realized.
Optionally, the communication mode between the main control board 10 and the expansion board 20 may be serial communication.
Optionally, in order to facilitate software and hardware upgrading, the main control board 10 and the expansion board 20 may be configured with the same communication protocol.
Optionally, the main control board 10 and the expansion board 20 may be upgraded collectively or individually according to the user's requirement.
Optionally, in order to prevent the door access device from being maliciously detached, the embodiment of the application is provided with the detachment prevention circuit, when a key or a switch in the detachment prevention circuit is triggered, an alarm signal is sent to the expansion board controller, and the expansion board controller triggers the alarm to alarm.
In the embodiment, when the access control is detected, the main control board 10 collects and identifies face information, and then sends a control signal to the expansion board controller according to a face identification result, and the expansion board controller receives the control signal and executes a specific door opening or closing action.
In addition, in this embodiment, the expansion board controller may also execute a corresponding access control action by acquiring a signal acquired by the access control detection unit 201, for example: when the fire-fighting circuit in the entrance guard detection unit 201 triggers the fire-fighting alarm signal, the board is expanded to obtain the fire-fighting alarm signal, and the relay is controlled to be in the door-opening state.
The entrance guard device based on face recognition provided by the embodiment releases the processing capability of the main control panel 10 by setting the expansion board 20, and improves the data processing speed of the main control panel 10.
Fig. 2 is a schematic structural diagram of a tamper circuit in an access control device based on face recognition. The tamper circuit includes: the circuit comprises a first resistor R1, a first capacitor C1, a first overvoltage element D1 and a first switch K1. The first end of the first resistor R1 is connected to the power supply, the second end of the first resistor R1 is connected to the first end of the first capacitor C1, the first end of the first overvoltage element D1, the first end of the first switch K1, and the control interface of the expansion board controller, and the second end of the first capacitor C1, the second end of the first overvoltage element D1, and the second end of the first switch K1 are grounded.
In the anti-disassembly circuit, in order to ensure the normal operation of the circuit, the power supply voltage of the circuit is 3.3V.
Preferably, the first overvoltage element D1 is a varistor, and an abnormal overvoltage in the circuit can be suppressed by using the varistor, thereby protecting the circuit from the overvoltage.
For example: in the anti-theft mode of the access control device, if the access control device is detached, namely the first switch K1 is triggered, the extension board receives an alarm signal from the first switch K1, and the extension board controls the audible and visual alarm to give an alarm.
Please refer to fig. 3, which is a schematic structural diagram of a fire protection circuit in an entrance guard device based on face recognition. The fire protection circuit includes: the circuit comprises a second resistor R2, a third resistor R3, a first triode Q1, a fourth resistor R4, a second capacitor C2, a fifth resistor R5 and a sixth resistor R6. The first end of the second resistor R2 is connected with the control interface of the expansion board controller, the second end of the second resistor R2 is connected with the first end of the third resistor R3 and the first end of the first triode Q1 respectively, the second end of the third resistor R3 is connected with the power supply and the first end of the fourth resistor R4 respectively, the second end of the first triode Q1 is connected with the first end of the second capacitor C2, the third end of the first triode Q1 is grounded, the second end of the fourth resistor R4 is connected with the fire alarm, the first end of the second capacitor C2 is also connected with the first end of the second overvoltage element D2, the first end of the fifth resistor R5 and the first end of the sixth resistor R6 respectively, the second end of the second capacitor C2, the second end of the second overvoltage element D2 and the second end of the fifth resistor R5 are grounded, and the first end of the sixth resistor R6 is connected with the second end of the fourth resistor R4 and the fire alarm respectively.
In the fire protection circuit, the second overvoltage element D2 may be a varistor or a thyristor. For example: when the fire alarm is triggered, the expansion board controls the relay to be in a door opening state.
Optionally, the access control circuit includes an input sub-circuit and an output sub-circuit.
The input sub-circuit comprises a first access controller M1, and the first end of the first access controller M1 is connected with a power supply; a second end of the first door access controller M1 is connected with a first end of a second triode Q2, a second end of the second triode Q2 is respectively connected with a power supply, a communication interface of the main control board 10 and a third end of the second triode Q2, and a third end of the second triode Q2 is grounded; the third end of the first access controller M1 and the first end of the third capacitor C3 are both grounded; the fourth end of the first door access controller M1 is respectively connected with the power supply, the communication interface of the expansion board controller and the second end of the third capacitor C3;
the output sub-circuit comprises a second gate inhibition controller M2, and a first end of the second gate inhibition controller M2 is connected with a power supply; a second end of the second gate inhibition controller M2 is connected with a first end of a third triode Q3, a second end of the third triode Q3 is grounded, a third end of the third triode Q3 is connected with the communication interface of the expansion board controller, and a third end of the second gate inhibition controller M2 is grounded with a first end of a fourth capacitor C4; the fourth terminal of the second gate inhibition controller M2 is connected to the power supply, the communication interface of the main control board 10, and the second terminal of the fourth capacitor C4.
The access control circuit also needs to meet the wiegand protocol, namely, after the card reader identifies a valid access card, the key information of the card is transmitted in the way of the wiegand protocol, then the key information is converted into data to be sent to the main control panel 10 or the expansion board controller, and the controller opens the door after verifying that the key information is valid.
Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of an input sub-circuit in an entrance guard control circuit of an entrance guard device based on face recognition; fig. 5 is a schematic structural diagram of an output sub-circuit in an access control device based on face recognition.
In addition, in order to ensure that the access control circuit works normally, in the access control circuit, the power supply comprises a first power supply 5V and a second power supply 3.3V.
In practical applications, in order to ensure that the access control circuit works normally and prevent the access control circuit from overcurrent or overvoltage, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11 and a fifth capacitor C5 need to be added to the input sub-circuit.
The input sub-circuit comprises a first access controller M1, a first end of the first access controller M1 is connected with a first end of a tenth resistor R10, and a second end of the tenth resistor R10 is connected with a first power supply (5V); a second end of the first door controller M1 is connected to a first end of a second triode Q2, a second end of the second triode Q2 is connected to a first end of a seventh resistor R7, a first end of an eighth resistor R8, a second end of a fifth capacitor, and a second end of a ninth resistor R9, a second end of the seventh resistor R7 is connected to the communication interface of the main control board 10, a second end of the eighth resistor R8 is connected to the first power supply, and a third end of the second triode Q2 is connected to the second ends of a fifth capacitor C5 and a ninth resistor R9; the third end of the first access controller M1 and the first end of the third capacitor C3 are grounded; the fourth end of the first door access controller M1 is connected to the first end of the eleventh resistor R11, the communication interface of the expansion board controller, and the second end of the third capacitor C3, respectively, and the second end of the eleventh resistor R11 is connected to the second power supply (3.3V).
It is necessary to add a twelfth resistor R12, a thirteenth resistor R13 and a fourteenth resistor R14 to the output sub-circuit.
The output sub-circuit comprises a second gate inhibition controller M2, wherein a first end of the second gate inhibition controller M2 is connected with a first end of a thirteenth resistor R13, and a second end of the thirteenth resistor R13 is connected with a first power supply (5V); a second end of the second gate inhibition controller M2 is connected to a first end of a third triode Q3 and a first end of a twelfth resistor R12, respectively, a second end of the third triode Q3 is grounded, a third end of the third triode Q3 is connected to a second end of the twelfth resistor R12 and a communication interface of the expansion board controller, and a third end of the second gate inhibition controller M2 is grounded to a first end of a fourth capacitor C4, respectively; a fourth end of the second gate inhibition controller M2 is connected to the first end of the fourteenth resistor R14, the communication interface of the main control board 10, and the second end of the fourth capacitor C4, respectively, and the second end of the fourteenth resistor R14 is connected to the second power supply (3.3V).
Optionally, the access control device based on face recognition is further provided with a power supply unit, wherein the power supply unit is respectively connected with the main control board 10 and the at least one expansion board 20, and is used for supplying power to the main control board 10 and the at least one expansion board 20, and the power supply unit can also supply power through a battery or a charger.
Referring to fig. 6, the security system provided in this embodiment is a structural block diagram of the security system provided in this embodiment. The entrance guard device based on the face recognition provided by the embodiment is arranged in the security system, and comprises a shell 30, a main control board 10 and at least one expansion board 20.
The main control panel 10 is provided with a camera 101 and a display screen 102, the camera 101 and the display screen 102 are both connected with the main control panel 10, the main control panel 10 collects face information, identifies the face information, and judges whether to open or close a door of a currently identified object.
When it is determined that the door opening operation needs to be performed on the current identification object, the main control board 10 generates a door opening control signal; and send its control signal that opens the door to expansion board 20, the expansion board controller receives the control signal that opens the door, according to the control signal control entrance guard detecting element 201 action that opens the door, for example: and the temperature detection subunit acquires the temperature of the identification object, or controls the iris detection subunit to perform iris detection on the identification object, or controls the fingerprint detection subunit to perform fingerprint detection on the identification object, and after the acquired temperature/iris/fingerprint information is matched with preset data, the expansion board controller controls the relay to execute door opening operation.
Optionally, the entrance guard detection unit 201 may include a card reader, where the card reader is configured to identify identity information of an entrance guard card, perform data transmission on the identity information through an entrance guard control circuit, and then control the relay to open the door through an expansion board controller.
Optionally, the entrance guard detection unit 201 may include a light supplement lamp, and the user may supplement light to the shooting environment of the user to be recognized by operating the display screen 102.
Optionally, the access control detection unit 201 may further include a USB interface, and in order to facilitate software upgrade, the access control device is provided with the USB interface for facilitating upgrade.
In this embodiment, the expansion board 20 is provided to share the calculation power of the main control board 10, so as to reduce the resource occupation of the main control board 10, thereby improving the recognition accuracy and recognition efficiency of the access control device, and in addition, the expansion board 20 is provided to prevent the complete machine replacement caused by the main board failure, thereby increasing the circulation of the main control board 10 or the expansion board 20, and reducing the production and maintenance costs of the access control device.
Alternatively, the temperature detection subunit may be a temperature sensor, the iris detection subunit may be an iris sensor, and the fingerprint detection subunit may be a fingerprint sensor.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides an entrance guard's device based on face identification, its characterized in that, includes the master control board, be provided with camera and display screen on the master control board, camera and display screen respectively with the master control board is connected, the master control board still is connected with at least one expansion board, be provided with at least one entrance guard detecting element on the expansion board.
2. The entrance guard device based on face recognition of claim 1, wherein the entrance guard detection unit comprises an expansion board controller, an anti-disassembly circuit, a fire-fighting circuit and an entrance guard control circuit; the expansion board controller is respectively connected with the main control board and used for receiving the control signal sent by the main control board and controlling the anti-dismantling circuit, the fire-fighting circuit and the access control circuit to perform corresponding actions according to the control signal; the anti-disassembly circuit is connected with the expansion board controller and is used for detecting whether the access control device based on the face recognition is disassembled; the fire fighting circuit is connected with the expansion board controller; the entrance guard control circuit is connected with the expansion board controller and used for controlling the opening and closing state of the entrance guard device based on the face recognition.
3. The door control device based on face recognition of claim 2, wherein the anti-tamper circuit comprises:
the first end of the first resistor is connected with a power supply, the second end of the first resistor is respectively connected with the first end of the first capacitor, the first end of the first overvoltage element, the first end of the first switch and the control interface of the expansion board controller, and the second end of the first capacitor, the second end of the first overvoltage element and the second end of the first switch are grounded.
4. The door access device based on face recognition according to claim 2, wherein the fire-fighting circuit comprises:
a second resistor, a first end of the second resistor is connected with the control interface of the expansion board controller, the second end of the second resistor is respectively connected with the first end of the third resistor and the first end of the first triode, the second end of the third resistor is respectively connected with a power supply and the first end of the fourth resistor, the second end of the first triode is connected with the first end of the second capacitor, the third end of the first triode is grounded, the second end of the fourth resistor is connected with a fire alarm, the first end of the second capacitor is also respectively connected with the first end of the second overvoltage element, the first end of the fifth resistor and the first end of the sixth resistor, the second end of the second capacitor, the second end of the second overvoltage element and the second end of the fifth resistor are grounded, and the first end of the sixth resistor is connected with the second end of the fourth resistor and the fire alarm respectively.
5. The door access device based on face recognition of claim 2, wherein the door access control circuit comprises an input sub-circuit and an output sub-circuit;
the input sub-circuit comprises a first access controller, and a first end of the first access controller is connected with a power supply; a second end of the first gate inhibition controller is connected with a first end of a second triode, a second end of the second triode is respectively connected with the power supply, a communication interface of the main control board and a third end of the second triode, and the third end of the second triode is grounded; the third end of the first access controller and the first end of the third capacitor are both grounded; a fourth end of the first access controller is respectively connected with a power supply, a communication interface of the expansion board controller and a second end of the third capacitor;
the output sub-circuit comprises a second gate inhibition controller, and the first end of the second gate inhibition controller is connected with a power supply; the second end of the second gate inhibition controller is connected with the first end of a third triode, the second end of the third triode is grounded, the third end of the third triode is connected with the communication interface of the expansion board controller, and the third end of the second gate inhibition controller is grounded with the first end of a fourth capacitor; and the fourth end of the second gate inhibition controller is respectively connected with a power supply, a communication interface of the main control board and the second end of the fourth capacitor.
6. The entrance guard device based on face recognition as claimed in claim 1, further comprising an alarm connected to the expansion board controller for sending an alarm signal when receiving a control signal from the expansion board controller.
7. The entrance guard's device based on human face recognition as claimed in any one of claims 2-6, wherein the entrance guard's detection unit further comprises a temperature detection subunit, an iris detection subunit, a fingerprint detection subunit, a communication subunit, a pickup subunit, a brightness compensation subunit, a data reading subunit, a relay and a reminding subunit all connected to the expansion board controller.
8. The entrance guard's device based on face recognition of claim 7, characterized in that, including the power supply unit, the power supply unit is connected with the main control board and at least one expansion board respectively, is used for supplying power to the main control board and at least one expansion board.
9. The entrance guard's device based on face recognition of claim 8, characterized in that, including the casing, power supply unit, the main control board and at least one expansion board set up in the casing.
10. A security system comprising the face recognition based access control device of any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181862.9U CN217061074U (en) | 2022-01-20 | 2022-01-20 | Access control device based on face recognition and security system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181862.9U CN217061074U (en) | 2022-01-20 | 2022-01-20 | Access control device based on face recognition and security system |
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| CN217061074U true CN217061074U (en) | 2022-07-26 |
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| CN202220181862.9U Active CN217061074U (en) | 2022-01-20 | 2022-01-20 | Access control device based on face recognition and security system |
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| CN (1) | CN217061074U (en) |
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