CN220873053U - Network equipment safety monitoring device and access control system using same - Google Patents

Abstract

The application provides a network equipment safety monitoring device and an access control system using the same, belonging to the technical field of network safety, wherein the device comprises: the system comprises a face recognition module, a controller, a power supply module, a motor speed reducing mechanism, a pyroelectric infrared detector, a camera and a monitoring display screen; the face recognition module is deployed in the access control system; the controller is electrically connected with the face recognition module; the input end of the power module is electrically connected with an external power supply, and the output end of the power module is electrically connected with the face recognition module; the power output end of the motor speed reducing mechanism is fixedly connected with the camera; the pyroelectric infrared detector is electrically connected with the controller; the camera is in communication connection with the face recognition module; and the monitoring display screen is in communication connection with the camera. The application is used for monitoring the indoor related area so as to avoid the damage or loss of indoor network equipment caused by the fact that the door lock of the access control system is opened by a non-allowed user and improve the safety.

Description

Network equipment safety monitoring device and access control system using same

Technical Field

The application relates to the technical field of network security, in particular to a network equipment security monitoring device and an access control system using the same.

Background

The network device refers to a device capable of realizing interconnection and intercommunication through the internet, and after unmanned on duty of the network device is realized, in order to prevent non-allowed users from entering, an access control system is generally installed to monitor users in front of a door so as to perform face recognition on people needing to enter the door, and the door of the door is automatically opened after the identification is passed.

In the prior art, an access control system firstly collects facial images of users needing to enter, then compares the facial images with face information input in the system in advance, and when the users are identified as the users capable of entering, the door lock of the access control system is automatically opened.

The inventors have then found that the following technical problems remain with the prior art: due to the high-simulation face technology, the door lock of the access control system is unlocked by mistake, so that the security of network equipment which needs to be attended by the access control system is reduced.

Disclosure of utility model

The application provides a network equipment safety monitoring device and an access control system using the same, which are used for monitoring an indoor related area so as to prevent indoor network equipment from being damaged or lost after a door lock of the access control system is opened by a non-permitted user and improve the safety.

In a first aspect, the present application provides a network device security monitoring apparatus, including: the system comprises a face recognition module, a controller, a power supply module, a motor speed reducing mechanism, a pyroelectric infrared detector, a camera and a monitoring display screen;

The face recognition module is deployed in the access control system and is used for executing face recognition operation;

the controller is electrically connected with the face recognition module;

The input end of the power supply module is electrically connected with an external power supply, the output end of the power supply module is electrically connected with the face recognition module, and the power supply module is used for providing electric energy;

The motor speed reducing mechanism is electrically connected with the controller, a power output end of the motor speed reducing mechanism is fixedly connected with the camera, and the motor speed reducing mechanism is used for driving the camera to rotate so as to enable the visual field range of the camera to fully cover a target area;

The camera is in communication connection with the face recognition module and is used for collecting image data in a target area;

the pyroelectric infrared detector is electrically connected with the controller;

The monitoring display screen is in communication connection with the camera and is used for receiving and displaying image data acquired by the camera.

Optionally, the network equipment security monitoring device as described above, the controller includes a timing circuit, a cryptographic circuit, a trigger circuit, and a control circuit; the timing circuit is respectively and electrically connected with the power supply module and the password circuit, and is used for setting the power supply output time of the power supply output module; the password circuit is electrically connected with the trigger circuit and is used for responding to the password door opening operation input by a user after the face recognition operation is successful; the trigger circuit is electrically connected with the control circuit.

Optionally, as described above, the network device safety monitoring apparatus includes a time relay and a diode, where a negative input terminal of the time relay is electrically connected to a negative output terminal of the power module.

Optionally, as described above, the security monitoring device for network equipment is provided with an electromagnetic lock in the access control system; correspondingly, the password circuit comprises a plurality of power switches, a first relay, a resistor and a first silicon controlled rectifier, wherein 3 power switches in the plurality of power switches are connected in series to form a series switch, two ends of the series switch are respectively and electrically connected with a normally closed point end of the first relay and the electromagnetic lock, other power switches in the plurality of power switches are connected in parallel, two ends of each power switch are connected with the input end of the first relay and one end of the resistor, the other end of the resistor is connected with a control electrode of the first silicon controlled rectifier, and a cathode of the first silicon controlled rectifier is connected with the input end of the first relay.

Optionally, in the network device security monitoring apparatus as described above, the ordering manner of the plurality of power switches in the cryptographic circuit is out of order.

Optionally, as described above, the triggering circuit includes a second silicon controlled rectifier and a second relay, where a control electrode of the second silicon controlled rectifier is connected to a control electrode of the first silicon controlled rectifier, and a cathode of the second silicon controlled rectifier is connected to an anode of the second relay.

Optionally, as described above, the control circuit includes a first time control switch, a second time control switch, and a third relay, where positive input ends of the first time control switch and the second time control switch are connected with normally closed contact ends of the third relay, and negative electrodes of the third relay are grounded.

Optionally, as described above, the power output shaft end of the motor speed reducing mechanism is provided with a baffle, two supporting seat plates are arranged on the housing of the motor speed reducing mechanism at intervals, each supporting seat plate is provided with a reset switch, and the two reset switches are connected in series between the output end of the control circuit and the input end of the motor speed reducing mechanism.

Optionally, in the network equipment safety monitoring device, the detection surface of the pyroelectric infrared detector is inclined downwards towards the target area.

In a second aspect, the present application provides an access control system comprising: the access control device comprises an access control body, an electromagnetic lock, an external power input end interface and a network equipment safety monitoring device, wherein the access control body is arranged on a door, the electromagnetic lock is electrically connected with the access control body, the external power input end interface is electrically connected with the access control body, and the network equipment safety monitoring device is described in the first aspect.

According to the network equipment safety monitoring device and the access control system using the same, face recognition is carried out through the face recognition module, the controller controls the pyroelectric infrared detector and the camera arranged indoors to carry out video shooting and positioning on users entering the indoor so as to complete monitoring, the monitoring network equipment supervisory user can timely find the condition that the users are not allowed to enter the indoor, the motor speed reducing mechanism drives the camera to move back and forth under the action of the pyroelectric infrared detector and the like, and the camera stops moving after being aligned to the incoming person, so that image data of the users which are not allowed to enter the indoor can be remotely transmitted to a far-end monitoring person in front of a monitoring display screen as far as possible, better monitoring effect can be achieved, safety is higher, network equipment is prevented from being damaged or lost by sending, and safety of the network equipment is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural diagram of a network device security monitoring device and a part of an access control system according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a circuit connection structure of a network device security monitoring device and a part of an access control system according to an embodiment of the present application.

Reference numerals illustrate:

A2-a face recognition module; a1-a power module; a4-a camera; m1-a motor speed reducing mechanism; a7-a pyroelectric infrared detector; a8, monitoring a display screen; 10-face recognition camera mechanism; a3-time relay; VD-diode; 6-a camera housing; a DC-electromagnetic lock; (S1, S2, S3, S4, S5, S6, S7, S8, S9) -a plurality of power switches; k1-a first relay; r-resistance; VS-a first thyristor; VS 1-a second silicon controlled rectifier; k2-second relay; a5-a first time-controlled switch; a6-a second time-controlled switch; k3-third relay; 8-baffle plates; 9-supporting the seat plate; (D2 and D3) -two reset switches.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of implementations consistent with aspects of the application as set forth in the following claims.

It should be noted that, the face information (including, but not limited to, personal information of the user, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards, and provide a corresponding operation entry for the user to select authorization or rejection.

In the prior art, network devices such as a personal computer PC, a camera capable of transmitting image data via a network, and production devices having a network interface, etc. In practical situations, in an area (such as a data processing center) with unmanned gate keeper and network equipment, in order to prevent non-allowed users from entering, an access control system based on face recognition technology is generally installed. When a certain user walks in front of the door, after the camera collects facial images, the face recognition module compares the facial information of the person with the pre-recorded face information in the system, after the user who is allowed to enter is identified, the face recognition module outputs a period of power supply to the power supply input end of the electromagnetic lock of the access control system, and the door of the access control system is opened, otherwise, if the user is not allowed, the door of the access control system is not opened. However, with the development of high-simulation face technology, users who are not allowed to enter can use the high-simulation face to open the access control system by mistake, so that the safety is low.

To solve the above problems, the inventors found the following technical idea: after the face recognition system is used for recognizing the face through the camera and the coded lock capable of automatically moving left and right, the door can be opened only after the user allowed to enter inputs the correct code, the door of the access control system is prevented from being opened by mistake, safety is improved, meanwhile, the camera is used for monitoring the user entering the door, and safety of network equipment is further improved.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a network device security monitoring device and a part of an access control system according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a circuit connection structure of a network device security monitoring device and a part of an access control system according to an embodiment of the present application.

As shown in fig. 1, the apparatus includes: the face recognition system comprises a face recognition module A2, a controller, a power supply module A1, a motor speed reducing mechanism M1, a pyroelectric infrared detector A7, a camera A4 and a monitoring display screen A8.

Referring to fig. 1 and 2, in this embodiment, a face recognition module A2 is disposed in the access control system, and the face recognition module A2 is configured to perform face recognition operation. The face recognition module A2 may be a processor or a chip with a face recognition function, and face information of all users allowed to enter the room through the access control system is stored in the face recognition module A2 in advance, the face recognition operation refers to a software or hardware function executed by the face recognition module A2, and when the users need to unlock the lock and enter the room, the face information acquired by the face recognition module A2 is matched with the face information of the users which are input in advance. The face recognition module A2 is matched with the face recognition camera mechanism 10, the face recognition camera mechanism 10 is arranged at the outer side end of a door of a monitored target area, and the face recognition camera mechanism 10 and the signal input end of the face recognition module A2 can be in communication connection through a data line.

In this embodiment, the controller is electrically connected to the face recognition module A2, and the controller is configured to send a control instruction to other controllable components or mechanisms in the device. The controller may include a plurality of circuits wired via a circuit board, and may control the start and stop of the operation of various circuit components or devices by control instructions.

Specifically, in an alternative embodiment of the present application, the controller includes a timing circuit, a cryptographic circuit, a trigger circuit, and a control circuit; the timing circuit is respectively and electrically connected with the power supply module and the password circuit and is used for setting the output power supply time of the power supply output module; the password circuit is electrically connected with the trigger circuit and is used for responding to the password door opening operation input by a user after the face recognition operation is successful; the trigger circuit is electrically connected with the control circuit.

In an alternative embodiment of the present application, as shown in fig. 2, the timing circuit includes a time relay A3 and a diode VD, where the negative input terminal of the time relay A3 is electrically connected to the negative output terminal of the power module A1. In this embodiment, the power output terminal 5 pin of the face recognition module A2 and the positive electrode of the diode VD may be electrically connected through a wire, and the power output terminal 6 pin of the face recognition module A2 and the negative electrode power input terminal 2 pin of the time relay A3 are electrically connected through a wire. The time relay A3 and the diode VD are connected through a circuit board wiring, wherein the cathode of the diode VD is connected with the pin 1 of the positive power supply input end and the pin 3 of the positive trigger signal input end of the time relay A3. The pin 2 of the negative power input end of the time relay A3 is connected with the pin 4 of the negative control power input end of the power module A1 and can be grounded, and the pin 9 of the power output end of the time relay A3 is electrically connected with the password circuit.

In an alternative embodiment of the application, an electromagnetic lock DC mounted on the door is also arranged in the access control system, and a lock tongue of the electromagnetic lock DC can return after colliding with a lock seat of the door through an inclined plane of the electromagnetic lock DC, so that when a user leaves a relevant area to close the door, the inclined plane of the front end of the lock tongue of the electromagnetic lock DC collides with the rear end of the lock seat to retract and pop out, and then the lock tongue can enter the lock seat to close the door.

Correspondingly, the password circuit comprises a plurality of power switches Sn (wherein n is a positive integer greater than 0), a first relay K1, a resistor R and a first controllable silicon VS, 3 power switches in the plurality of power switches Sn are connected in series as shown by S7, S8 and S9 in fig. 2 to form a series switch, two ends of the series switch are respectively and electrically connected with a normally closed point end of the first relay K1 and an electromagnetic lock DC, other power switches in the plurality of power switches Sn are connected in parallel as shown by S1-S6 in fig. 2, two ends of each power switch are connected with an input end of the first relay K1 and one end of the resistor R, the other end of the resistor R is connected with a control electrode VS of the first controllable silicon VS, and a cathode of the first controllable silicon is connected with an input end of the first relay K1. In this embodiment, the power output end of the cryptographic circuit is a normally closed contact end of the first relay K1, and the power input end of the cryptographic circuit is a power input end of the first relay K1.

In this embodiment, the plurality of power switches Sn of the cryptographic circuit correspond to the corresponding digital passwords respectively, and as shown in fig. 2, when the plurality of power switches Sn are S1, S2, S3, S4, S5, S6, S7, S8, S9, the 9 power switches correspond to the numbers 1-9 in sequence.

Based on the above embodiments, in an alternative embodiment of the present application, the plurality of power switches in the cryptographic circuit are arranged in an out-of-order manner, and the first digital code of each power switch in the out-of-order manner is not arranged according to the number size, for example, the power switch S1 corresponds to the number 6, and the power switch S3 corresponds to the number 8.

In an alternative embodiment of the present application, the trigger circuit includes a second thyristor VS1 and a second relay K2, where a control electrode of the second thyristor VS1 is connected to a control electrode of the first thyristor VS, and a cathode of the second thyristor VS1 is connected to an anode of the second relay K2. The connection mode of the second silicon controlled rectifier VS1 and the second relay K2 with other circuit components can be electrical connection realized through wires. The second relay K2 is used as a power output end of the trigger circuit and is electrically connected with the power input end 1 pin of the camera A4, the power input end 1 pin of the pyroelectric infrared detection A7 and the power input end of the control circuit through wires respectively.

In an alternative embodiment of the present application, the control circuit includes a first time control switch A5, a second time control switch A6 and a third relay K3, where the positive input terminal 1 pins of the first time control switch A5 and the second time control switch A6 are connected to the normally closed contact terminal of the third relay K3, and the negative electrode of the third relay K3 is grounded.

In this embodiment, the pin 2 of the negative power input end of the first time control switch A5 is electrically connected to the negative power input end of the third relay K3 and then grounded. The positive pole power output end 3 pin of the first time control switch A5 is electrically connected with the positive pole power input end of the motor reducing mechanism M1, and the 4 pin of the first time control switch A5 is electrically connected with the negative pole power output end of the motor reducing mechanism M1. The negative pole power input end 2 foot of second time switch A6 is grounded, and the positive pole power output end 3 foot of second time switch A6 is connected with the negative pole power output end of motor reduction gears M1 electrically, and the 4 foot of second time switch A6 is connected with the positive pole power output end 3 foot of first time switch A5 electrically.

As shown in fig. 1 and 2, further, in an alternative embodiment of the present application, a baffle 8 is installed at the power output shaft end of the motor speed reducing mechanism M1, two supporting seat plates 9 are arranged on the casing of the motor speed reducing mechanism at intervals, a reset switch is installed on each supporting seat plate 9, and two reset switches (D2 and D3) are connected in series between the output end of the control circuit and the input end of the motor speed reducing mechanism M1. Wherein, two wiring ends of reset switch D2 are established ties respectively between first time control switch A5 and motor reduction gears M1 through the wire, and two wiring ends of reset switch D3 are established ties respectively between second time control switch A6 and motor reduction gears M1 through the wire.

With continued reference to fig. 1 and 2, an input end of the power module A1 is electrically connected to an external power source, an output end of the power module A1 is electrically connected to the face recognition module A7, and the power module A1 is configured to provide electric energy. In this embodiment, the power module A1 may be a 220V/12V/1KW ac 220V to dc 12V switching power module, where the voltage input terminal 1 pin and the voltage input terminal 2 pin of the power module A1 are electrically connected to two stages of external ac power sources through wires respectively. The pin 3 of the power output end of the power module A1 is electrically connected with the pin 1 of the power input end of the face recognition module A2, the anode of the second silicon controlled rectifier VS1 in the trigger circuit and the negative power input end of the second relay K2 through wires respectively. The power output end 4 pin of the power module A1 is electrically connected with the power input end 2 pin of the face recognition module A2, the power output end 6 pin, the negative electrode power input end 2 pin of the time relay A3 and the negative electrode control power input end 4 pin of the time relay A3 through wires respectively.

With continued reference to fig. 1 and 2, the motor speed reducing mechanism M1 is electrically connected to the controller, the power output end of the motor speed reducing mechanism M1 is fixedly connected to the camera A4, and the motor speed reducing mechanism M1 is used for driving the camera A4 to rotate, so that the field of view of the camera A4 fully covers the target area.

In this embodiment, the motor reducing mechanism M1 may be a mechanism including a motor and a reducer, where the motor reducing mechanism M1 may be installed on an indoor wall surface of a target area to be monitored, and may be installed on a bracket fixed on the wall surface if necessary, so as to ensure that when the camera A4 connected to the screw nut of the motor reducing mechanism M1 rotates left and right to approximately 180 degrees, the image pickup housing 6 of the camera A4 may be connected to the power output end of the motor reducing mechanism M1 by means of a bolt connection. The target area may be an indoor area of a room where the network device is stored, and the shooting field of view of the camera A4 can fully cover the target area, that is, cover the front end and side end ground space of the wall surface.

With continued reference to fig. 1 and 2, the pyroelectric infrared detector A7 is electrically connected to the controller, and the pyroelectric infrared detector A7 is configured to collect azimuth information of the user in the target area. In this embodiment, the pyroelectric infrared detector A7 may be installed in the camera housing 6, and the upper and lower parts of the front end of the camera housing 6 start to have two through holes, and the detection surface of the pyroelectric infrared detector A7 is located outside one of the through holes.

With continued reference to fig. 1 and 2, the camera A4 is communicatively connected to the face recognition module A2, and the camera A4 is configured to collect facial information of the user in the target area. In this embodiment, the camera A4 may be a wireless camera with wireless image data transmission, and is in communication connection with the face recognition module A2 and the controller through a WiFi transceiver of the wireless camera, and the camera housing 6 of the camera A4 may be fixedly connected with the power output shaft of the motor reducing mechanism M1 through a bolt connection manner. The power input end 1 pin of the camera A4 is electrically connected with a second relay K2 and a pyroelectric infrared detector A7 in the trigger circuit respectively. In this embodiment, the image data may be picture data and/or video data.

The monitor display screen A8 in this embodiment, the monitor display screen A8 may be a monitor of a console of a monitoring room installed at a remote end or a user terminal of a person having a monitoring responsibility. The monitoring display screen A8 is in communication connection with the camera A4, and is used for receiving and displaying image data collected by the camera A4, so that a person with monitoring responsibility can monitor a target area in a room where the network equipment is located.

In order to better illustrate the network equipment security monitoring device provided by the embodiment of the application, the following is the implementation principle of the network equipment security monitoring device:

With continued reference to fig. 1 and 2, after the user is allowed to face recognition, and input a correct password, the corresponding power switches S7, S8 and S9 are enabled, the 12V power anode of the power module A1 is controlled by the first relay K1 to control the power input end and the normally closed contact end, so that the electromagnetic lock DC is electrified, and after the electromagnetic lock DC is electrified, the electromagnet drives the lock core to retract from the lock seat hole, so that the door can be opened. The second silicon controlled rectifier VS1 is conducted, the second relay K2 is electrified, after the second relay K2 controls the power input end and the normally open contact end to be closed, after 30 seconds (30 seconds can be preset in the process to be described), the 9 feet of the time relay module A3 stop outputting power, then the electromagnetic lock DC is powered down to prepare for the next entry of a person, and as the lock tongue of the electromagnetic lock DC can return after collision between the inclined surface of the electromagnetic lock DC and the lock seat of the door, when a user leaves a target area to close the door, the inclined surface of the front end of the lock tongue and the rear end of the lock seat are bumped and retracted, and then the lock tongue can be popped up to enter the lock seat to close the door.

When a user is not allowed to enter a room through a target area under monitoring, as the user does not know a password formed by numbers corresponding to the three power switches S7, S8 and S9, and the corresponding number password in the power switches S1 to S6 is wrongly pressed, any one of the power switches S1 to S6 is closed at the moment, the 12V power anode of the power module A1 can be reduced in voltage through the current limiting of the resistor R1 to enter the control electrodes of the first silicon controlled rectifier VS and the second silicon controlled rectifier VS1, the first silicon controlled rectifier VS is conducted with the first relay K1 to be electrically sucked, and the power input end and the normally closed contact end are controlled to be opened. Then, in the time period of 30 seconds (it should be noted that 30 seconds may be preset here) between the power output terminal 5 pin and the power output terminal 6 pin of the face recognition module A2, even if the user is not allowed to correctly press the buttons of the power switches S7, S8, and S9 subsequently, the electromagnetic lock DC will not be powered on, and after 30 seconds, the password can be input again only when the time relay module A3 outputs the power again after the face recognition is performed again.

With continued reference to fig. 1 and 2, after the non-permitted user performs face recognition and at least one password input operation and enters the room, the face recognition module 2 transmits information that the user is likely to be the non-permitted user to the controller, and the controller controls the camera A4 and the pyroelectric infrared detector A7 to be always powered on and operated. After the pyroelectric infrared detector A7 is powered on, when the user is in the detection range, the pyroelectric infrared detector A7 outputs a high level to enter the third relay K3. The third relay K3 is electrified and attracted, the power input end and the normally closed contact end are controlled to open, the control circuit is powered off and stops working at the moment, and the motor reducing mechanism M1 is not installed at the rotating angles of the dynamic pyroelectric infrared detector A7 and the camera A4 in the camera shooting shell 6. On the contrary, when the user is not in the detection range of the pyroelectric infrared detector A7, the pyroelectric infrared detector A7 can stop outputting a high level to enter the third relay K3, the third relay K3 is in power failure and is separated, and the power input end and the normally closed contact are not controlled to be closed.

At this time, the control circuit is electrically operated, the first time-space switch A5 outputs power to the positive and negative power input ends of the motor reducing mechanism M1, the power output shaft of the motor reducing mechanism M1 drives the pyroelectric infrared detector A7 and the camera A4 to rotate from right to left, after the second time-space switch A6 is electrically operated for a preset time, after the 3 feet and the 4 feet of the second time-space switch A6 are separated for a preset time, the power source for the preset time is continuously output to the positive and negative power input ends of the motor reducing mechanism M1, the power output shaft of the motor reducing mechanism M1 drives the pyroelectric infrared detector A7 and the camera A4 to rotate from left to right, after the preset time is separated, the 3 feet and the 4 feet of the first time-space switch A5 output 6 seconds power to the positive and negative power input ends of the motor reducing mechanism M1, and the reciprocating circulation is performed, the pyroelectric infrared detector A7 and the camera A4 continuously rotate from left to right, and video shooting and positioning are performed for monitoring.

In summary, according to the network equipment safety monitoring device provided by the embodiment of the application, the face recognition is performed through the face recognition module, the controller controls the pyroelectric infrared detector A7 and the camera A4 which are arranged indoors to perform video shooting and positioning on the user entering the indoor so as to complete monitoring, so that the network equipment supervisory personnel watching the monitoring can timely find the condition that the user is not allowed to enter the indoor, the motor speed reducing mechanism M1 can drive the camera A4 to move left and right under the action of the pyroelectric infrared detector A7 and the like, and the camera A4 stops moving after being aligned to the incoming person, so that the remote monitoring display screen A8 which is arranged at the far end and is not allowed to be remotely transmitted to the indoor can be displayed to the supervisory personnel as much as possible, the better monitoring effect can be achieved, the safety is higher, the network equipment is prevented from being damaged or lost, and the safety of the network equipment is further improved.

Meanwhile, the timing circuit, the password circuit, the trigger circuit and the control circuit in the controller are matched with components in the corresponding control circuit, so that the situation that the person can enter a room only by inputting a correct password after face recognition passes is achieved, the false opening rate of the door is reduced, and the safety is further improved.

Meanwhile, the sorting mode of the plurality of power switches in the password circuit is set to be disordered, so that the difficulty that the door-opening password is cracked is improved, and the safety is further improved.

In an alternative embodiment of the present application, the electronic components in the circuit described in the above embodiment are exemplified: the resistance value of the resistor R can be 4.7K, the first relay K1, the second relay K2 and the third relay K3 can be DC12V relays, the first time control switch A5 and the second time control switch A6 can be full-automatic microcomputer time control switches, the microcomputer time control switches are provided with seven keys, two power input ends 1 and 2 pins and two power output ends 3 and 4 pins, and when the device is used, a user can respectively press and operate the seven keys, so that the interval time of the two power output ends outputting power can be set. The time relay A3 can be a time controller, and the time relay A3 can comprise a setting key 5 pin, an emergency stop key 6 pin, a time adding key 7 pin, a time subtracting key 8 pin and a normally open power supply output end 9 pin. Pyroelectric infrared detector A7 may be a human infrared sensing electronic module sensor having two power input pins 1 and 2 and a signal output pin 3. The first and second thyristors VS1 and VS may be plastic packaged unidirectional thyristors.

Based on the above embodiment, in an alternative embodiment of the present application, the detection surface of the pyroelectric infrared detector A7 is inclined downward toward the target area, and in this embodiment, the upper end of the detection surface of the pyroelectric infrared detector A7 faces forward, and the lower end faces backward, and forms an inclination angle of about 10 degrees with the ground.

Correspondingly, since the pyroelectric infrared detector A7 and the camera A4 are both mounted on the imaging housing 6, in an alternative embodiment of the present application, the imaging view angle orientation of the camera A4 is also inclined downward toward the target area. Here, the inclination angle of about 10 degrees may be adjusted at any time according to the indoor environment and the size of the area to be monitored.

In summary, according to the network equipment safety monitoring device provided by the embodiment of the application, the detection surface formed by installing the pyroelectric infrared detector A7 is inclined downwards, so that the pyroelectric infrared detector A7 can also detect when the head height of a user entering a room is lower than the detection surface, the probability of omission detection is reduced, and the safety is further improved.

The embodiment of the application also provides an access control system, which comprises: the access control device comprises an access control body arranged on the door, an electromagnetic lock electrically connected with the access control body, an external power input end interface electrically connected with the access control body and the network equipment safety monitoring device as described in the embodiment.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

In the description of the present specification, reference is made to the description of the terms "an alternative embodiment" and "one possible implementation" etc. means that a particular feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. A network device security monitoring apparatus, comprising: the system comprises a face recognition module, a controller, a power supply module, a motor speed reducing mechanism, a pyroelectric infrared detector, a camera and a monitoring display screen;

The face recognition module is deployed in the access control system and is used for executing face recognition operation;

the controller is electrically connected with the face recognition module;

The input end of the power supply module is electrically connected with an external power supply, and the output end of the power supply module is electrically connected with the face recognition module;

The motor speed reducing mechanism is electrically connected with the controller, a power output end of the motor speed reducing mechanism is fixedly connected with the camera, and the motor speed reducing mechanism is used for driving the camera to rotate so as to enable the visual field range of the camera to fully cover a target area;

the pyroelectric infrared detector is electrically connected with the controller;

The camera is in communication connection with the face recognition module and is used for collecting image data in a target area;

The monitoring display screen is in communication connection with the camera and is used for receiving and displaying image data acquired by the camera.

2. The network device security monitoring apparatus of claim 1 wherein the controller comprises a timing circuit, a cryptographic circuit, a trigger circuit, and a control circuit;

The timing circuit is respectively and electrically connected with the power supply module and the password circuit, and is used for setting the power supply output time of the power supply output module;

The password circuit is electrically connected with the trigger circuit and is used for responding to the password door opening operation input by a user after the face recognition operation is successful;

The trigger circuit is electrically connected with the control circuit.

3. The network device security monitoring apparatus of claim 2 wherein: the timing circuit comprises a time relay and a diode, wherein the negative electrode input end of the time relay is electrically connected with the negative electrode output end of the power supply module.

4. The network equipment safety monitoring device according to claim 3, wherein an electromagnetic lock is arranged in the access control system;

Correspondingly, the password circuit comprises a plurality of power switches, a first relay, a resistor and a first silicon controlled rectifier, wherein 3 power switches in the plurality of power switches are connected in series to form a series switch, two ends of the series switch are respectively and electrically connected with a normally closed point end of the first relay and the electromagnetic lock, other power switches in the plurality of power switches are connected in parallel, two ends of each power switch are connected with the input end of the first relay and one end of the resistor, the other end of the resistor is connected with a control electrode of the first silicon controlled rectifier, and a cathode of the first silicon controlled rectifier is connected with the input end of the first relay.

5. The network device security monitor of claim 4, wherein the plurality of power switches in the cryptographic circuit are ordered in an out-of-order manner.

6. The network device security monitoring apparatus of claim 4, wherein the trigger circuit comprises a second thyristor and a second relay, a control electrode of the second thyristor is connected with a control electrode of the first thyristor, and a cathode of the second thyristor is connected with an anode of the second relay.

7. The network device safety monitoring apparatus of claim 6, wherein the control circuit comprises a first time control switch, a second time control switch and a third relay, wherein positive input ends of the first time control switch and the second time control switch are connected with a normally closed contact end of the third relay, and a negative electrode of the third relay is grounded.

8. The network equipment safety monitoring device according to claim 2, wherein a baffle is installed at the power output shaft end of the motor speed reducing mechanism, two supporting seat plates are arranged on the shell of the motor speed reducing mechanism at intervals, a reset switch is installed on each supporting seat plate, and the two reset switches are connected in series between the output end of the control circuit and the input end of the motor speed reducing mechanism.

9. The network device security monitoring apparatus of any one of claims 1 to 8 wherein the detection face of the pyroelectric infrared detector is inclined downwardly towards the target area.

10. An access control system, comprising: an access control body mounted on a door, an electromagnetic lock electrically connected to the access control body, an external power input port interface electrically connected to the access control body, and the network equipment security monitoring device according to any one of claims 1-9.