CN108492431B - Intelligent access control system - Google Patents
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- CN108492431B CN108492431B CN201810540413.7A CN201810540413A CN108492431B CN 108492431 B CN108492431 B CN 108492431B CN 201810540413 A CN201810540413 A CN 201810540413A CN 108492431 B CN108492431 B CN 108492431B
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- 238000005516 engineering process Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 238000012805 post-processing Methods 0.000 claims description 6
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/38—Individual registration on entry or exit not involving the use of a pass with central registration
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The invention discloses an intelligent access control system, which comprises a background processing system, wherein the background processing system is respectively connected with a first memory, a second memory, a counter and a comparator, the first memory is used for storing resident information and advertisement information required to be put in, and the second memory is used for storing visitor information acquired by the access control system; the background processing system is also connected with an electromagnetic lock, a code scanner, a mobile terminal, a face recognition living body detector, a camera module, an identity card reader, an infrared sensor and a multimedia display for playing advertisements on the entrance guard through a communication module; the mobile terminal is a mobile phone. The access control system can realize face brushing or code scanning access, is safer and more convenient, and has a more accurate advertisement putting system.
Description
Technical Field
The invention relates to the technical field of access control safety system equipment, in particular to an intelligent access control system.
Background
With the rapid development of information technology and network technology, access control systems with better intelligence and safety performance are more and more mature. People tend to open the access control system by unique identification of individuals. Many defects are exposed for the traditional card swiping access and the input coded lock access, and the identification technology based on biological feature identification is mature in recent years and shows great superiority in practical application, but the traditional single face recognition, voiceprint recognition and fingerprint recognition only can ensure that the characteristics of people can be effectively verified, the operators cannot be ensured to be the operators, and the cases using photos, fingerprint films and recording crimes are caused to be subjected to common report ends.
The face recognition living body detection technology solves the counterfeiting problem to a certain extent. The technology obtains the true identity of the visitor through the identity recognition system, and the safety performance is greatly improved, but the technology also brings a plurality of inconveniences. When resident households forget to take certificates and door opening cards, or some resident visitors do not have the door opening cards, particularly, express delivery personnel of some normal companies often need to call and then wait for the owners to open the access control system to enter, which is troublesome and wastes time even because no one enters the home.
Although visitors or households can open the access control system through identity recognition at present, the methods generally need to carry with them some certificates, access cards or identity cards, but forget to carry with them occurs, and often the access control system is locked outside the door because of forgetting to carry with them. But it is almost a habit for modern people to carry mobile phones with them, which is easier than carrying credentials. For some high-grade communities, the requirements on safety and comfort performance are more strict, a community property company or a management company establishes a network APP platform for communicating and publishing notices, and besides publishing some community notices, platforms for communicating by some owners can be further arranged, and each owner's mobile phone APP can be distributed with a unique two-dimensional code for starting a corresponding access control system. The two-dimensional code on the mobile phone is used for opening the access control system, so that the access control system is more and more popular with people, and great convenience is brought.
The strongest convenience of the two-dimensional code access control is that the door can be opened without any actual key, and the door can be opened only by a mobile phone, so how can the two-dimensional code access control realize the door opening by using the mobile phone? The two-dimensional code entrance guard is to realize that the door is opened, and is essential just the two-dimensional code, and the two-dimensional code divides static two-dimensional code and dynamic two-dimensional code, and the trend of dynamic two-dimensional code has been moved close gradually now, and dynamic two-dimensional code can be updated in real time, is difficult for being stolen by other people, also can lose efficacy in the short time after being stolen, and present two-dimensional code entrance guard can then generate the two-dimensional code through applet such as WeChat, realizes opening the door, only needs simple several steps to register and accomplishes, still can carry out real-time sharing of a key, and is simple convenient and safe. The management system of the district can completely install an APP applet on each mobile phone of the safety resident, and the APP applet is used for acquiring a two-dimensional code for an access control system.
And for many cell gates or elevator gates, there are advertisement devices which can attract a large part of eyeballs of people entering the cell gates or waiting for the elevator, so as to play a propaganda role. However, these advertisement devices are all rolling broadcasting, and cannot be put in purposefully according to the identity of the viewer, so that the advertisement putting efficiency is low. Moreover, many people have hurried about it and even if there is interest in the advertisement being seen, further detailed knowledge is not possible for various reasons such as time.
The present invention has been made in view of the above problems.
Disclosure of Invention
In order to solve the problems, the invention provides an intelligent access control system.
The technical scheme provided by the invention is as follows: the intelligent access control system comprises a background processing system, wherein the background processing system is respectively connected with a first memory, a second memory, a counter and a comparator, the first memory is used for storing resident information and advertisement information required to be put in, and the second memory is used for storing visitor information acquired by the access control system; the background processing system is also connected with an electromagnetic lock, a code scanner, a mobile terminal, a face recognition living body detector, a camera module, an identity card reader, an infrared sensor and a multimedia display for playing advertisements on the entrance guard through a communication module; the mobile terminal is a mobile phone, the code scanning device is used for scanning two-dimension codes distributed on a mobile phone APP carried by a resident and sending the scanned two-dimension codes to the background processing system, the electromagnetic lock is connected with the electromagnetic lock controller, and the electromagnetic lock controller is connected with the background processing system through the communication module.
Further, the background processing system is also connected with a timer, and when the background processing system receives a signal sent by the infrared sensor, the timer starts to count.
Further, the camera module comprises a binocular camera and a monocular camera.
Further, the camera module is connected with a light supplementing module, and the light supplementing module is respectively connected with the radar detector and the photosensitive module.
Further, the background processing system is also connected with a display.
Further, the communication module comprises a wired network and a wireless network.
Further, the post-processing system is provided with an ARM processor.
Further, the multimedia display comprises a first display and a second display, the first display is arranged above the gate inhibition outer code scanner, the second display is arranged at the elevator opening in the gate inhibition, and the first display and the second display are synchronously played.
Further, the two-dimension code is a dynamic two-dimension code distributed by a background processing system.
The beneficial effects of the invention are as follows:
according to the intelligent access control system, for resident owners and residents, two-dimension codes acquired on the mobile phone APP can be directly scanned and enter, an access control card is not required to be carried, the intelligent access control system is more convenient, when the scanning is carried out and the door is opened, the camera module acquires images of the personnel and sends the images to the background processing system, and the background processing system puts corresponding advertisements on a multimedia display arranged on the access control through analyzing image data, so that the attention of the personnel is conveniently attracted, and the advertisement is put more accurately; meanwhile, the entrance guard system records the identity card information aiming at the personnel needing to enter temporarily, compares the influence of the shooting of the camera with the image on the identity card information through the post-processing system, judges that the person is the same person, and then carries out living detection through the living detector to prevent the person from taking the photo to impersonate, so that the entrance guard system is safer; after the identity card is successfully brushed, the background processing system records the times, after the identity card is successfully brushed for a preset number of times, the system considers that the personnel is basically safe, the information of the personnel is stored in an independent memory, the personnel can enter the memory through the face brushing directly when entering the memory again, and the resident can enter the memory through the face brushing after the identity card is brushed for a preset number of times in the early stage for foreign personnel. The access control system is provided with a more accurate advertisement delivery system, and is safer through identity verification and living body detection.
Drawings
The invention, together with a further understanding of the many of its attendant advantages, will be best understood by reference to the following detailed description, when considered in conjunction with the accompanying drawings, which are included to provide a further understanding of the invention, and the accompanying drawings, illustrate and do not constitute a limitation on the invention, and wherein:
fig. 1 is a connection diagram of an intelligent access control system according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the technical scheme provided by the invention is that the intelligent access control system comprises a background processing system, wherein the background processing system is respectively connected with a first memory, a second memory, a counter and a comparator, the first memory is used for storing resident information and advertisement information required to be put in, and the second memory is used for storing visitor information acquired by the access control system; the background processing system is also connected with an electromagnetic lock, a code scanner, a mobile terminal, a face recognition living body detector, a camera module, an identity card reader, an infrared sensor and a multimedia display for playing advertisements on the entrance guard through a communication module; the mobile terminal is a mobile phone, the code scanning device is used for scanning two-dimension codes distributed on a mobile phone APP carried by a resident and sending the scanned two-dimension codes to the background processing system, the electromagnetic lock is connected with the electromagnetic lock controller, and the electromagnetic lock controller is connected with the background processing system through the communication module.
The access control system can be opened in two ways, the first identity card reader brushes an identity card, the camera module shoots images, the information obtained by the identity card reader and the camera module is sent to the background processing system, the background processing system compares the stored pictures in the identity card magnetic card with the shot images, and meanwhile, the face recognition living body detector detects whether the camera module shoots a living body or not, so that the counterfeits in the forms of pictures and the like are prevented. The living body detector sends the detection result to the background processing system, and when the shot image is consistent with the identity card image and is the living body result, the living body detector sends an opening instruction to the access control system. Meanwhile, the information read out by the camera module and the identity card reader is stored in the second memory, and counted once by the counter. The door opening mode is mainly used for temporary visitors without other door opening modes, and is equivalent to entering after registering real identity information.
After the counter is connected and counted to count the normal door opening times of the same identity information to the preset times, the post-processing system marks the person to obtain the authorization of face brushing and door entering, the person can directly stand under the camera module when entering the person, the camera module shoots images and transmits the images to the background processing system, the background processing system searches images stored in the second memory, and if matched image data are searched, and the data information already obtains the authorization of face brushing and door entering, a door opening signal is sent, and face brushing and door entering is achieved. The method is mainly used for obtaining the authorization of the face brushing access through continuous and repeated access aiming at frequent visitor or resident, and is safe and convenient.
This access control system opens door's second mode, sweeps the two-dimensional code on the APP of yard ware scanning installation on the cell-phone and opens. The mobile phone APP obtains a two-dimension code for personal door opening, the two-dimension code is sent to the mobile phone through the background processing system, the code scanner scans and then sends the code to the background processing system for comparison, and the code scanner sends a door opening instruction if the comparison is consistent. The door opening method mainly aims at resident registered by a resident in a property or a district management department, the resident acquires own APP and ID address during registration, and the information of the resident is stored in a first memory by a two-background processing system.
The entrance guard system also has the function of intelligently putting advertisements, firstly, after people enter the sensing range of the infrared sensor, the camera module shoots images and sends the images to the background processing system through the communication module, analysis software installed by the background processing system analyzes and processes the images to obtain the gender and age of the images, and then the corresponding advertisements are selected from the first memory and put on the multimedia display. The person now sees the advertisement for him from the multimedia display. The advertisement is accurately delivered.
The face recognition technology is used, wherein the face recognition technology searches and captures the human images of the recognition activities through the camera, and a person can be recognized in the crowd through the high-definition camera, the background processing system and software. The system uses a camera to scan and shoot a certain area, searches for the shape of a possible face, then searches a memory for similar facial features which are stored in advance, then a background processing system analyzes pixels forming a facial image, compares the brightness of each pixel point with adjacent points, searches for an area with the brightness of the pixel points suddenly changing in radiation to the surrounding, the system outlines the position of each pixel point, the points are called as reference points, then connecting lines among the points to form a network formed by triangles, the system measures the angle of each triangle, then a program tries to find similar records matched with the data from a database of the triangle, thereby judging the identity of a consumer, and then displays and puts advertisements of corresponding contents stored in the memory in advance through a display.
In the living body detection technology, the camera module adopts two cameras, namely a camera for shooting visible light and a near infrared camera for filtering the visible light, wherein the near infrared camera is a common camera plus an optical filter for transmitting 810nm wave band or an infrared film for transmitting 810nm wave band is plated on the camera. The two cameras take pictures for the same person at the same time or within a second of time, and respectively acquire visible light and near infrared images.
Detecting a face area on a visible light image, if no face is detected, re-shooting photos by two cameras, if the face is detected, expanding the range on the face area detected by the visible light, searching the face characteristics on a near infrared image by using the expanded area, if the face is considered to be similar, performing histogram analysis in the searched face range, and calculating the histogram contrast, wherein the formula is as follows:
C＝∑ δ δ(i，j) 2 P δ (i，j)
δ(i，j)＝|i-j|p δ (i，j)
delta is the gray level difference between adjacent pixels, and delta is the pixel distribution probability of the gray level difference between the adjacent pixels.
The contrast is larger than a certain threshold value, the living body is primarily judged, otherwise, the living body is a imitative object, the living body image is primarily judged, then the two-to-two relation between the two eyes and the nose part is further judged according to the near infrared image, the living body is judged according to the relation, and otherwise, the imitative object is judged.
In the technical scheme, the background processing system is also connected with an infrared sensor. The infrared sensor is a pyroelectric infrared sensor, a person enters the sensing range of the infrared sensor, then the infrared sensor outputs a high level, the infrared sensor sends a sensing signal to the background processing system through the sensor control module, the background processing system starts the camera to start working, and the person leaves the sensing range, so that the camera stops working, and the energy-saving effect is achieved.
In the above technical scheme, the background processing system is further connected with a timer, and when the background processing system receives the signal sent by the infrared sensor, the timer starts to count. That is, when the background processing system receives the signal transmitted by the infrared sensor, namely, the background processing system indicates that a person approaches the access control system, the background processing system sends a signal to the timer to start timing, and when the infrared sensor does not sense the person, the background processing system stops timing of the timer. The time calculated by the timer is sent to the background processing system, the background processing system is compared with the preset time, when the calculated time exceeds the preset time, the preset time can be set to 30 seconds to 60 seconds, the person is indicated to have longer residence time beside the display, and the advertisement comparison is possibly interested, if the background processing system also obtains the APP of the person through the code scanner, the advertisement put in the residence time of the person is sent to the mobile phone APP of the person by the background processing system, and the person can see the put advertisement as long as the person opens the APP again. The interested person can further know the advertisement conveniently, and the optimal effect of the advertisement is achieved.
Further, the camera module comprises a binocular camera and a monocular camera.
In each technical scheme, the second camera is connected with the shooting light supplementing module, the light supplementing module is connected with the photosensitive module and the radar detector, and the control of the photosensitive module and the radar detector is received. Better shooting effect and improved confirmation accuracy.
In the above technical solutions, the background processing system is further connected with a display. The display can call out the identity information in all the first memories and the second memories, so that the checking is convenient. Pruning or additions may also be made and monitored when a problem occurs with the system or otherwise desired.
More preferably, the post-processing system is provided with an ARM processor.
More preferably, the mobile terminal is connected with the background processing system through the communication module and is used for receiving the signal sent by the background processing system by the mobile terminal APP. The communication module is mainly used for receiving and transmitting signals between the central controller and the mobile terminal of the mobile phone.
More preferably, the communication module comprises a wired network and a wireless network, namely a WIFI module and a 3G/4G module.
More preferably, the multimedia display comprises a first display and a second display, the first display is arranged outside the entrance guard, the second display is arranged at the elevator opening in the entrance guard, and the first display and the second display are synchronously played. The first display is arranged outside the access control, particularly above the code scanner, so that people can watch the code conveniently, the camera is also arranged above the code scanner, accurate identity confirmation and advertisement putting precision can be carried out on the code scanner, and the time calculated by the timer is more likely to be the time for watching the advertisement putting time of the person. The second display is arranged at the door of the elevator, and advertisements selected for the person are also put in when waiting for the elevator.
More preferably, the two-dimension code is a dynamic two-dimension code distributed by a background processing system. The dynamic two-dimensional code replaced at any time is safer than the distributed fixed static two-dimensional code, so that the possibility that someone steals the static two-dimensional code is avoided.
In summary, according to the intelligent access control system disclosed by the invention, for resident owners and residents, the two-dimension codes acquired on the mobile phone APP can be directly scanned to enter the intelligent access control system, an access control card is not required to be carried, the intelligent access control system is more convenient, when the scanning codes wait for opening the door, the camera module acquires images of the personnel and sends the images to the background processing system, and the background processing system analyzes the image data to put corresponding advertisements on a multimedia display arranged on the access control system so as to attract the attention of the personnel, and the advertisement putting is more accurate; meanwhile, the entrance guard system records the identity card information aiming at the personnel needing to enter temporarily, compares the influence of the shooting of the camera with the image on the identity card information through the post-processing system, judges that the person is the same person, and then carries out living detection through the living detector to prevent the person from taking the photo to impersonate, so that the entrance guard system is safer; after the identity card is successfully brushed, the background processing system records the times, after the identity card is successfully brushed for a preset number of times, the system considers that the personnel is basically safe, the information of the personnel is stored in an independent memory, the personnel can enter the memory through the face brushing directly when entering the memory again, and the resident can enter the memory through the face brushing after the identity card is brushed for a preset number of times in the early stage for foreign personnel. The access control system is provided with a more accurate advertisement delivery system, and is safer through identity verification and living body detection.
The above examples are presented only to aid in understanding the core concept of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (7)
1. The intelligent access control system is characterized by comprising a background processing system, wherein the background processing system is respectively connected with a first memory, a second memory, a counter and a comparator, the first memory is used for storing resident information and advertisement information required to be put in, and the second memory is used for storing visitor information acquired by the access control system; the background processing system is also connected with an electromagnetic lock, a code scanner, a mobile terminal, a face recognition living body detector, a camera module, an identity card reader, an infrared sensor and a multimedia display for playing advertisements on the entrance guard through a communication module; the mobile terminal is a mobile phone, the code scanning device is used for scanning two-dimension codes distributed on a mobile phone APP carried by a resident and sending the scanned two-dimension codes to the background processing system, the electromagnetic lock is connected with the electromagnetic lock controller, and the electromagnetic lock controller is connected with the background processing system through the communication module;
the background processing system is also connected with a timer, and when the background processing system receives a signal sent by the infrared sensor, the timer starts to count;
the camera module comprises a binocular camera and a monocular camera;
the intelligent access control system is started in two modes, firstly, an identity card reader is used for brushing an identity card, a camera module is used for shooting images, information obtained by the identity card reader and the camera module is sent to a background processing system, the background processing system compares a stored photo in the identity card and the shot images, and meanwhile, a face recognition living body detector is used for detecting whether the shot image is a living body or not, so that the counterfeiting of the photo form is prevented; the living body detector sends the detection result to the background processing system, and when the shot image is consistent with the identity card image and is the living body result, the living body detector sends an opening instruction to the intelligent access control system; simultaneously storing the information read out by the camera module and the identity card reader into a second memory, and counting once by a counter;
when the counter is connected and counted to count the normal door opening times of the same identity information to a preset number of times, the post-processing system marks the personnel of the identity information to obtain the authorization of face brushing and door entering, the personnel of the identity information can directly stand under the camera module when entering the camera module, the camera module shoots images and transmits the images to the background processing system, the background processing system searches the images stored in the second memory, and if matched image data are searched, and the data information already obtains the authorization of face brushing and door entering, a door opening signal is sent, so that face brushing and door entering are realized;
the face recognition living body detection uses the face recognition technology, a camera is utilized to scan and shoot a certain area, the shape of a possible face is searched, then the face features which are stored in advance and are similar to the face features are searched in a memory, then a background processing system analyzes pixels forming the face image, the brightness of each pixel point is compared with adjacent points, the area with the brightness which is suddenly changed in radiation is searched, the system outlines the position of each pixel point, the points are called as reference points, then a network formed by triangles is formed by connecting the points, the system measures the angle of each triangle, then a program tries to find similar records matched with the data from a database of the triangle, so that the identity of a consumer is judged, and then advertisements of corresponding content stored in the memory in advance are displayed and put in through a display;
in the living body detection technology used by the human face recognition living body detector, a camera module adopts two cameras, a camera for shooting visible light and a near infrared camera for filtering visible light, wherein the near infrared camera is a common camera plus an optical filter penetrating 810nm wave band or an infrared film penetrating 810nm wave band is plated on the camera; the two cameras take pictures for the same person at the same time or within a second of time, and respectively acquire visible light and near infrared images;
detecting a face area on a visible light image, if no face is detected, re-shooting photos by two cameras, if the face is detected, expanding the range on the face area detected by the visible light, searching the face characteristics on a near infrared image by using the expanded area, if the face is considered to be similar, performing histogram analysis in the searched face range, and calculating the histogram contrast;
the contrast is larger than a certain threshold value, the living body is primarily judged, otherwise, the living body is a imitative object, the image of the living body is primarily judged, then the two-to-two relation between the two eyes and the nose part is further judged according to the near infrared image, the living body is judged according to the relation, and otherwise, the imitative object is judged;
the background processing system is also connected with a timer, and when the background processing system receives a signal sent by the infrared sensor, the timer starts to count; when the background processing system receives the signal transmitted by the infrared sensor, namely that a person approaches the access control system, the background processing system sends a signal to the timer to start timing, and when the infrared sensor does not sense the person, the background processing system stops the timing of the timer; the time calculated by the timer is sent to the background processing system, the background processing system is compared with the preset time, when the calculated time exceeds the preset time, the preset time can be set to 30 seconds to 60 seconds, the fact that the person has long residence time beside the display is possibly interested in advertisement comparison is indicated, if the background processing system also obtains the APP of the person through the code scanner at this time, the advertisement put in the residence time of the person is sent to the mobile phone APP of the person through the APP of the background processing system, and the person can see the put advertisement as long as the person opens the APP again.
2. The intelligent access control system according to claim 1, wherein the camera module is connected with a light supplementing module, and the light supplementing module is respectively connected with the radar detector and the photosensitive module.
3. An intelligent access control system according to any of claims 1-2, wherein the background processing system is further coupled with a display.
4. The intelligent access control system of claim 3, wherein the communication module comprises a wired network and a wireless network.
5. The intelligent access control system of claim 4, wherein the background processing system is provided with an ARM processor.
6. The intelligent access control system of claim 5, wherein the multimedia display comprises a first display and a second display, the first display is mounted above the door access outer code scanner, the second display is mounted at an elevator entrance in the door access, and the first display and the second display play synchronously.
7. The intelligent access control system of claim 6, wherein the two-dimensional code is a dynamic two-dimensional code distributed by a background processing system.
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| CN111145402A (en) * | 2018-11-05 | 2020-05-12 | 珠海精讯知识产权管理有限公司 | Intelligent access control system for identification of identity card, two-dimensional code and WeChat card package |
| CN109544754B (en) * | 2018-11-27 | 2021-09-28 | 湖南视觉伟业智能科技有限公司 | Access control method and system based on face recognition and computer equipment |
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