CN103280009B - Multifunctional entrance guard device - Google Patents

Abstract

The invention discloses a multifunctional access control device, which comprises a main controller and a mobile phone remote terminal, wherein the main controller is provided with an indoor part, an outdoor part and a remote control part; the indoor part comprises a central processing unit, a doorbell, an indoor voice module, a video display, an indoor MIC (microphone), an electronic door lock, a door opening button and a data memory; the outdoor part comprises a doorbell/password key, an outdoor voice module, a camera, an infrared induction probe and an outdoor MIC; the remote control part comprises a wireless transceiving module and a remote control key; the mobile phone remote terminal is provided with a remote control end central processing unit, a remote control end data memory, a remote control end wireless transceiving module and a remote control end control output module. The entrance guard device is based on a face recognition system and a remote wireless control system of a central processing unit, can realize intelligent face recognition and decoding prevention, and can be applied to a mobile phone for remote control.

Description

A multifunctional access control device

technical field

The invention relates to the technology in the field of security equipment, in particular to a multifunctional access control device.

Background technique

As the public has higher and higher requirements for the safety of entering and exiting public buildings, in addition to installing access control systems in rental houses, intelligent buildings, computer rooms and other places, people have also installed video surveillance systems to monitor the entry and exit personnel by swiping cards and real-time video recording. In this way, detailed records of personnel entry and exit information and video information can be realized, security personnel can be reduced, and intelligent management can be carried out. Most of the video access control devices currently on the market are composed of access control controllers, video cameras, front-end controllers and remote control centers. The face information collected by the collector is then sent to the server for comparison, and at the same time it is determined whether the electronic door lock is opened and the key box is unlocked.

Due to the huge amount of processing and comparison of face images, especially when there are many pre-stored face images, real-time performance cannot be guaranteed when using a microprocessor, and the cost of using a computer or server is too high. Furthermore, the existing access control devices based on face recognition rely solely on collected face images for recognition, and there are several major shortcomings:

First, there is no preliminary identification and judgment on the tester, and the face image collection is directly carried out, which increases the additional identification work of the access control device.

Second, if someone else obtains the face image or facial model of the legal person, the authentication can be passed, and the security is low.

Three, the above-mentioned access control management system has a single function and is inconvenient to use. Especially, if the owner is not at home, but can't monitor what visitors come and visit, it is difficult to meet people's needs.

Aiming at the problems existing in the existing access control devices for face recognition, it is necessary for professional and technical personnel of the same profession to propose a new access control device.

Contents of the invention

In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a multifunctional access control device, which can realize intelligent face recognition, anti-decoding, and can also be applied to mobile phones for remote control.

To achieve the above object, the present invention adopts the following technical solutions:

A multifunctional access control device, comprising

A main controller, the main controller has indoor, outdoor and remote control parts; the indoor part includes a central processing unit, a doorbell respectively connected to the central processing unit, an indoor voice module for talking or sending out prompts or alarm sounds, Video display for monitoring visitors, indoor MIC for dialogue, electronic door lock for installation on the gate, door open button for manually opening the electronic door lock, data storage for saving video information, and main controller The power supply for power supply; the outdoor part includes the doorbell/password key respectively connected to the central processing unit, the outdoor voice module for calling, the camera for collecting the image information of the visitor, the infrared sensor probe for detecting the arrival of the visitor, and the An outdoor MIC for dialogue; the remote control part includes a wireless transceiver module connected to the central processing unit and a remote control button for opening the remote control function;

A mobile phone remote terminal, the mobile phone remote terminal is equipped with a remote control terminal central processing unit, a remote control terminal data memory connected to the remote control terminal central processing unit for storing monitoring signals, and a remote control terminal for realizing the wireless communication function with the main controller The wireless transceiver module of the remote terminal, a control output module of the remote terminal for controlling the main controller, and a power supply for the central processing unit of the remote terminal.

Preferably, the central processing unit is connected with an image data processing module, the image data processing module includes an image comparison analysis unit and an image database unit storing images of family members and frequent relatives and friends, the image comparison analysis unit, the image database unit They are respectively connected to the central processing unit and the camera.

Preferably, the main controller is an FPGA control chip.

Preferably, the central processing unit is also provided with a time setting module, which is connected with the infrared sensing probe.

Preferably, the infrared sensing probe adopts a hybrid circuit of analog and digital.

Preferably, the infrared sensing probe includes a low-power voltage regulator, a pyroelectric sensor, a processing IC, a low-pass filter, a signal amplifier, a signal comparator, a logic controller, and a state controller arranged on the same circuit board. and signal output modules.

Preferably, an alarm is set in the indoor voice module, and a photoresistor is connected to the alarm.

Preferably, the wireless transceiver module of the remote terminal of the mobile phone is paired with the wireless transceiver module on the main controller sharing the CDMA3G network.

Preferably, the indoor part of the master controller is installed on the inner wall next to the gate of the house, and the outdoor part is installed on the outer wall next to the outer gate.

Preferably, the outdoor part is integrated with the electronic peephole on the gate, and the infrared induction probe and camera are set in the electronic peephole.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solution that the face recognition system and the remote wireless control system based on the central processing unit are powerful and easy to use. Among them, the face recognition system enters the pre-set simple password through the button, the voice will prompt to collect the face image, the image decoder temporarily stores the collected face information in the data memory, and the face recognition module inside the central processing unit Preprocess and compare the collected image information with the template image (the face image of the person with access control authority) stored in the data memory in advance to obtain the comparison result, and determine whether the electronic door lock is opened according to the comparison result; If it is determined that it is not one person, an alarm will be generated. The remote wireless control system can realize the remote control of mobile phones, including remote unlocking, real-time calling, real-time video monitoring and remote alarm functions.

In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural principle diagram of the embodiment of the present invention;

Fig. 2 is the connection diagram of image data processing module in the embodiment of the present invention;

Fig. 3 is the connection diagram of the time setting module in the embodiment of the present invention;

Fig. 4 is the structural principle diagram of infrared induction probe in the embodiment of the present invention;

Fig. 5 is a structural principle diagram of the indoor voice module in the embodiment of the present invention.

Explanation of the accompanying drawings:

1. Main controller 2. Mobile phone remote terminal

3. CPU 4. Doorbell

5. Indoor voice module 6. Door open button

7. Video display 8. Indoor MIC

9. Voice dialogue button 10. Data memory

11 Electronic door lock 12. Power supply

13. Doorbell/password key 14. Outdoor voice module

15. Camera 16. Infrared sensor probe

17. Outdoor MIC18, wireless transceiver module

19. Remote control button 20. Central processing unit of remote control

21. Data memory of remote control terminal 22. Wireless transceiver module of remote control terminal

23. Remote control output module 24. Power supply

25. Image data processing module 26. Image contrast analysis unit

27. Image database unit 28. Time setting module

29. Low power consumption regulator 30. Pyroelectric sensor

31. Processing IC32, low-pass filter

33. Signal amplifier 34. Signal comparator

35. Logic controller 36. State controller

37. Signal output module 38. DC power supply

39. Alarm 40. Photoresistor

detailed description

Please refer to shown in Fig. 1, it has shown the concrete structure of the preferred embodiment of the present invention, and this access control device comprises master controller 1 and mobile phone remote terminal 2, and it can realize intelligent recognition face, anti-decoding, and also It can be applied to mobile phones for remote control of various functions.

Wherein, the main controller 1 has three parts: indoor, outdoor and remote control. The indoor part includes a central processing unit 3, a doorbell 4 connected to the central processing unit 3, an indoor voice module 5, a door opening button 6, a video display 7, an electronic door lock 11, a indoor MIC8, a data memory 10 and a power supply 24. The outdoor part includes a doorbell/password key 13, an outdoor voice module 14, a camera 15, an infrared sensing probe 16, and an outdoor MIC17 connected to the central processing unit 3, respectively.

In application, the indoor part is installed on the inner wall next to the gate, but it can also be installed in other convenient places according to the needs of the owner. This outdoor part is installed on the outer wall next to the outside of the gate, or directly cooperates with the electronic cat's eye of the gate door panel. When the outdoor part and the electronic cat's eye are set as one, the infrared sensing probe 16 and camera 15 are arranged in the electronic cat's eye .

The central processing unit 3 is the core of the access control device, and the present embodiment selects an FPGA control chip for realization. After the central processing unit 3 is connected with the peripheral modules, the following functions are realized: a). Judging whether the input password is correct; b). Prompting to collect face images; c). Collecting suitable face images; d). Image comparison; e) .Open the electronic door lock 11; f). Send an alarm signal; g). Send real-time monitoring data to the mobile phone remote terminal 2; h). Receive the control signal from the mobile phone remote terminal 2 and operate the access control device to realize dialogue, door opening, alarm and other functions .

Specifically, as shown in FIG. 2 , an image data processing module 25 is connected to the central processing unit 3, and the image data processing module 25 includes an image contrast analysis unit 26 and an image database unit 27, which are stored in the image database unit 27. There are family members and the image data sent to relatives and friends who often communicate with each other, and it is used in conjunction with the camera 15 to realize the face recognition function.

As shown in Figure 3, the central processing unit 3 is also provided with a time setting module 28, which is connected with the infrared sensing probe 16, and the owner can control and set the infrared sensing sensor through the time setting module 28 as required. Probe 16 turn-on and turn-off times. When the infrared sensing probe 16 is in the open state, once the human body enters the sensing area, the access control device can be started automatically; when the infrared sensing probe 16 is closed, the visitor presses the doorbell/password key 13 to start the access control device.

As shown in Fig. 4, this infrared induction probe 16 adopts analog and digital hybrid circuit, and the infrared induction probe 16 includes the low power consumption regulator 29, pyroelectric sensor 30, processing IC31, low-pass circuit board arranged on the same circuit board. Filter 32, signal amplifier 33, signal comparator 34, logic controller 35, state controller 36 and signal output module 37, this infrared induction probe 16 is powered by DC power supply 38, and DC power supply 38 passes through low power consumption regulator 29 After performing voltage stabilization and filtering, it is provided to the pyroelectric sensor 30 and the processing IC31 to work. After the pyroelectric sensor 30 senses the signal, it is input to the processing IC31 through the low-pass filter 32. After the signal is amplified, the signal is compared and logically controlled to realize the sensor signal. Voltage to logic level conversion, and finally output control signal level.

In addition, as shown in Figure 5, an alarm 39 is set in the indoor voice module 5, and a photoresistor 40 is connected in the alarm 39, and the day or night is judged by the photoresistor 40, when the photosensitive electric group detection value is night, The alarm 39 is turned on. At this time, when the image comparison analysis unit 26 analyzes that a person in the infrared sensing area does not match the person in the image database unit 27, the alarm 39 sends an alarm signal.

The automatic face recognition control principle of this access control device is as follows:

When the human body enters the sensing area of the infrared sensor probe or presses the doorbell/password key 13, the access control device is triggered to start, and the people's visit signal is sent to the central processing unit 3, which sends a control signal.

1) When the visitor is a stranger who does not know the password to open the door, pressing the doorbell 4 button in the doorbell/password key 13 will trigger the doorbell 4 in the room to ring, and at the same time the camera 15 and video display 7 will start automatically, on the one hand The picture taken by the camera 15 is transmitted to the video display 7 for display, and the data memory 10 stores the video data simultaneously; , the image comparison and analysis unit 26 analyzes the human body picture taken by the camera 15, and makes a corresponding judgment after matching and comparing with the pre-stored image of the image database unit 27, and the image comparison and analysis unit 26 analyzes and compares the data Transmitted to the indoor voice module 5, the indoor voice module 5 broadcasts through the loudspeaker according to the set character name or appellation; when there is no matching character in the image database unit 27, the indoor voice module 5 sends a corresponding prompt The prompt sound of a stranger coming to guard against, let the owner further judge.

After the owner watches the picture outside the door through the video display 7, if further understanding is needed, the voice dialogue button 9 can be pressed for dialogue. MIC17 is opened, and can realize dialogue, and the sound of dialogue is sent out from outdoor voice module 14 and indoor voice module 5 respectively, thereby makes things convenient for the owner to understand the information of stranger, determines whether to open the door again. If you need to open the door, you can press the door-opening button 6, and the central processing unit 3 sends an unlocking signal to unlock the electronic door lock 11.

2) When the visitor is a family member or relative or friend who knows the password to open the door, the face recognition method of the access control device is as follows:

a). Judging whether the keyed-in password is correct: the central processing unit 3 judges whether the digital password keyed in by the user through the key password button is correct, and if correct, execute step b); if not correct, send "re-enter the password" through the outdoor voice module 14 ” voice prompt;

b). Prompt to collect facial images: send out a voice prompt "Please bring your face closer to the camera 15" through the voice module, so as to collect the user's facial images;

c). Gather a suitable face image: the central processing unit 3 obtains the image of the user's face through the camera 15, and obtains an image of a suitable size by judging the size and inclination of the line connecting the two pupils on the face image; if If the size of the connecting line between the two pupils is too small, a voice warning of "Please approach the camera 15" will be issued; if the size of the connecting line of the two pupils is too large, a voice warning of "Please stay away from the camera 15" will be issued; if the connecting line of the two pupils is tilted to the right, Then issue a voice warning "please tilt your head to the left", if the line connecting the two pupils tilts to the left, then issue a voice warning "please tilt your head to the right"; until a suitable face image is collected;

d). Image comparison: compare the collected face image with the pre-stored template image, and judge whether there is an image consistent with the collected face image in the template image; if it exists, perform step e); if does not exist, then perform step f);

e). Open the electronic door lock 11: the central processing unit 3 sends a control signal to open the electronic door lock 11;

f). Send out an alarm signal: send out an alarm signal through the voice module to warn someone of illegal entry.

As shown in Figure 1, the remote control part of the main controller 1 includes a wireless transceiver module 18 and a remote control button 19 respectively connected to the central processing unit 3, the wireless transceiver module 18 is used to communicate with the mobile phone remote terminal 2 to realize signal docking and real-time information transmission, the remote control button 19 is used to start the wireless operation function, so that the central processing unit 3 executes the control command sent by the remote terminal 2 of the mobile phone.

The mobile phone remote terminal 2 realizes the remote control function by installing operating software on the mobile phone. The remote terminal 2 of the mobile phone is provided with a remote terminal central processing unit 20, a remote terminal data memory 1021 connected to the remote terminal central processor 20, a remote terminal wireless transceiver module 22, a remote terminal control output module 23 and a The power supply 24 for the central processing unit 20 of the remote control terminal.

Wherein, the remote control terminal wireless transceiver module 22 of the mobile phone remote terminal 2 is matched with the wireless transceiver module 18 on the main controller 1 to complete the line signal receiving and sending functions. Effectively prevent signal interference and ensure normal use.

After pressing the remote control button 19, the wireless transceiver module 18 is powered on and starts to work. In the course of work, when there is no visitor, the main controller 1 will not send a signal to the mobile phone remote terminal 2. When there is a visitor, the main controller 1 will automatically dial the owner's mobile phone. In this state, the mobile phone remote terminal 2 will There are several working modes:

1. The mobile phone remote terminal 2 controls to open the door: the wireless transceiver module 22 of the remote terminal of the mobile phone remote terminal 2 will receive the wireless signal sent by the wireless transceiver module 18 of the main controller 1, and send it to the central processor 20 of the remote control terminal to identify the signal. Command the wireless transceiver module 22 of the remote control terminal to perform signal feedback to feed back to the central processing unit 3 of the main controller 1. After the two signals are matched and connected, the remote terminal 2 of the mobile phone can be used to directly operate and control the access control device. For example: the door-opening password is pressed by the mobile phone remote terminal 2, and the door-opening signal is sent by wireless transmission, and then the wireless transceiver module 18 receives the door-opening signal and sends it to the central processing unit 3, which is judged to be the correct door-opening code matching the door-opening signal of the owner's mobile phone Afterwards, the central processing unit 3 issues an order to start the electronic door lock 11 to unlock the action.

2, mobile phone remote terminal 2 monitoring video: when there is no one at home, the signal of the visitor will not be prompted by the doorbell 4, and will not be displayed by the video display 7, but the signal of the visitor will be sent by the central processing unit 3 through the wireless transceiver module 18 On the owner's mobile phone, if the visitor is a familiar relative or friend, the owner can send a signal to open the door through the mobile phone, and through remote control, open the electronic door lock 11; Pick up, turn on the voice call, the owner can remotely use the mobile phone to talk with the visitor to learn about the information. If illegal, then can control central processing unit 3 by mobile phone, open alarm 39 and report to the police, realize active alarm function. In addition, illegal elements forcibly destroy the electronic door lock 11 and enter the house, which will also trigger the central processing unit 3 to open the alarm 39 to realize the passive alarm function. to the owner's mobile phone and forwarded to the nearby Public Security Bureau.

In summary, the focus of the design of the present invention is that the face recognition system and the remote wireless control system based on the central processing unit 3 are powerful and easy to use. Wherein, the face recognition system enters the pre-set simple password through the key, and the voice will prompt to collect the face image, and the image decoder temporarily stores the collected face information in the data memory 10, and the face information in the central processing unit 3 The recognition module preprocesses and compares the collected image information with the template image (the face image of the person with access control authority) pre-stored in the data memory 10 to obtain the comparison result, and determines the electronic door lock according to the comparison result. 11 whether to open; if it is determined that there is not one person, an alarm will be generated. The remote wireless control system can realize the remote control of the mobile phone, including remote unlocking, real-time calling, real-time video monitoring and remote alarm functions. .

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solutions of the present invention.

Claims (1)

1. A multifunctional access control device, characterized in that: comprising A main controller, the main controller has indoor, outdoor and remote control parts; the indoor part includes a central processing unit, a doorbell respectively connected to the central processing unit, an indoor voice module for talking or sending out prompts or alarm sounds, Video display for monitoring visitors, indoor MIC for dialogue, electronic door lock for installation on the gate, door open button for manually opening the electronic door lock, data storage for saving video information, and main controller The power supply for power supply; the outdoor part includes the doorbell/password key respectively connected to the central processing unit, the outdoor voice module for calling, the camera for collecting the image information of the visitor, the infrared sensor probe for detecting the arrival of the visitor, and the An outdoor MIC for dialogue; the remote control part includes a wireless transceiver module connected to the central processing unit and a remote control button for opening the remote control function; A mobile phone remote terminal, the mobile phone remote terminal is equipped with a remote control terminal central processing unit, a remote control terminal data memory connected to the remote control terminal central processing unit for storing monitoring signals, and a remote control terminal for realizing the wireless communication function with the main controller The wireless transceiver module of the remote control terminal, a control output module of the remote control terminal for controlling the main controller, and a power supply for the central processing unit of the remote control terminal, the central processing unit is connected with an image data processing module, and the image data processing module includes There is an image contrast analysis unit and an image database unit storing images of family members and frequent relatives and friends. The image contrast analysis unit and the image database unit are respectively connected to a central processing unit and a camera. The main controller selects an FPGA control chip, and the central The processor is also provided with a time setting module, the time setting module is connected with the infrared sensing probe, the infrared sensing probe adopts analog and digital hybrid circuits, and the infrared sensing probe includes a low power consumption stable transformer, pyroelectric sensor, processing IC, low-pass filter, signal amplifier, signal comparator, logic controller, state controller and signal output module, an alarm is set in the indoor voice module, and the alarm is connected to There is a photoresistor, and the wireless transceiver module of the remote terminal of the mobile phone remote terminal shares the CDMA3G network with the wireless transceiver module on the main controller. The indoor part of the main controller is installed on the inner wall next to the door of the house, and the outdoor part Installed on the outer wall next to the outer side of the gate, or the outdoor part is integrated with the electronic cat's eye on the gate, and the infrared induction probe and camera are arranged in the electronic cat's eye.