CN214012068U - Novel cloud entrance guard visual intercom system - Google Patents
Novel cloud entrance guard visual intercom system Download PDFInfo
- Publication number
- CN214012068U CN214012068U CN202022911362.XU CN202022911362U CN214012068U CN 214012068 U CN214012068 U CN 214012068U CN 202022911362 U CN202022911362 U CN 202022911362U CN 214012068 U CN214012068 U CN 214012068U
- Authority
- CN
- China
- Prior art keywords
- communication module
- audio
- cloud server
- cloud
- outdoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephonic Communication Services (AREA)
Abstract
The application relates to a novel cloud entrance guard visual intercom system, which comprises an outdoor unit, an encryption device, a first wireless communication module, a cloud server, a second wireless communication module, an indoor unit and an intelligent terminal; the outdoor unit comprises a first audio and video acquisition device and a first audio and video playing device, and the intelligent terminal is used for installing a user side APP; the indoor unit machine comprises a second audio and video acquisition device and a second audio and video playing device, the encryption device encrypts and decrypts data between the outdoor unit machine and the cloud server, between the intelligent terminal and the cloud server and between the indoor unit machine and the cloud server, and solves the technical problems that in the prior art, wired deployment engineering quantity is large, complexity is high, wireless deployment transmission distance is short, and requirements for environment are high, the technical effects of high efficiency and good safety of data transmission are achieved, and real-time remote control can be achieved.
Description
Technical Field
The application relates to the technical field of entrance guard, especially, relate to a novel visual intercom system of cloud entrance guard.
Background
At present, with the rapid development of the RFID radio frequency technology and the biotechnology, the access control system can be classified into three categories according to the difference of the input device identification principle and mode: the system comprises a card swiping access control system, a biological identification access control system and a novel access control system.
1. The card swiping access control system comprises: the card can be divided into a contact card access control system (a magnetic stripe card and a bar code card) and a non-contact card (an induction card and a radio frequency card) access control system according to the type of the card. The contact card access control system has fewer and fewer used scenes because the card is easy to wear and tear due to contact, information is easy to copy, and the card is easy to lose effectiveness due to interference of an external magnetic field, and is generally only used in places related to bank cards (magnetic stripe cards). The non-contact card does not need to be contacted with a card reading device when in use, has the advantages of convenience in use, strong durability, high cost performance, high reading speed, difficulty in copying card information, high safety and the like, and is the mainstream of the current access control system.
2. Biological identification access control system: an access control system for identifying identity by verifying human body biological characteristics. Common biological characteristics are: fingerprint (fingerprint information on the surface of a finger, and differences exist in fingerprint line characteristics of each person), palm type (differences exist in skeleton shapes of palms of each person), facial recognition (differences exist in the characteristics and positions of five sense organs of each person), iris (differences exist in the retinas of each person through optical scanning), finger veins (differences exist in the shapes and distribution of finger veins of each person), and the like.
The advantages are that: the method has the advantages that media such as cards do not need to be carried, the safety is excellent from the recognition perspective, the repeated probability is low, and the copying is not easy.
The disadvantages are as follows: the cost is high. The identification rate is not high, and is required for the environment height, and is required for the user height (for example fingerprint can not the fish tail, the eye can not red and swell and bleed, can not have the wound on the face, or how much of beard), and it is inconvenient to use (for example iris type and face identification type, the mounting height position is certain, but user's height is the diverse), because biological identification need compare very many parameter characteristics, compare speed slow, be unfavorable for the too many occasions of personnel number. The biological characteristics of the human body vary with the environment and time, and thus rejection rate is easily generated, for example: the fingerprint is different due to different seasons and humidity, palm shape and portrait are changed due to aging, iris is changed due to eye diseases, and the like, which is clearly the person, but his biological characteristics are changed, and the biometric access control system can not be considered as the person.
3. Novel access control system: the access control system which takes the two-dimensional code as the identification carrier of the identity is newly developed in recent years. The method is characterized in that the traditional card information is coded into a two-dimensional code graph, the two-dimensional code graph is sent and stored on a mobile phone or directly printed in a short message and multimedia message mode, when the method is used, the two-dimensional code graph is identified, read and verified through special code reading equipment, and personnel access is controlled through judging the legality of the two-dimensional code information and the identity card information.
The advantages are that: need not to carry the card medium, with low costs, easily preparation, simple structure, nimble practical, be used for interim authority management, for example: temporary visitor registration, reservation.
The disadvantages are as follows: the two-dimensional code has the characteristic of large information amount, but the two-blade sword is a pair of double-blade swords, and the personal information of the two-dimensional code can be leaked due to the small two-dimensional code while more information can be obtained through the two-dimensional code. At present, two-dimensional codes capable of storing personal information are arranged on train tickets, and in the near future, the train tickets are discarded at will and are utilized by lawless persons, so that the news of illegal activities of passenger information is obtained.
In the aspect of data transmission, the wireless modes applied to the access control system which are relatively concerned in the market at present are as follows: micropower wireless 485 scheme: the transmission distance is within hundreds of meters, although the cost is low, because the wireless transmission country of micropower does not have too big policy restriction, the use is relatively more flooded, many devices such as remote controller burglar alarm have adopted micropower's scheme for some region easily receives the interference of other signals a lot and the communication is unstable, because the transmission distance is too short to be easily applied on large-scale project. The scheme of the wireless data transmission radio station (medium and high power wireless 485): the transmission distance may be up to several kilometers. Due to the national policy of radio management, if the system is used legally, high annual fee needs to be paid, and the access control cost is too high. If the device is illegally used, the device is easy to check and fine, and can be used by strangers. Short message mode: the data transmission quantity is small, the data transmission is easy to lose, the communication is unstable, the real-time performance is not good, and the GPRS and the CDMA are as follows: the mobile phone can be networked as long as the mobile phone signal covers the place, the signal is stable, but the annual fee is paid, and the access equipment is expensive, which is different from more than one thousand yuan to more than several thousand yuan. Generally, the mobile phone is only suitable for being used by mobile users and connected users, and other users are mostly unavailable. Short-distance transmission, wireless jump mode: by using a chip design supporting 100 meters (the distance between the open space and the barrier distance with the wall can be greatly shortened), the controller is a transceiver and a transfer device for sending data to the next device. The scheme cannot solve wireless transmission with large span, the distance between doors is not enough (if a wall is shorter) when the distance between the doors exceeds 100 meters, if one controller fails, the communication of the whole network is influenced, and the trouble is inconvenient to find. Frequent signal transfer makes the stability of communication worried. Wireless router scheme: the cost of the TCP controller, the wireless router and the wireless receiving equipment is only hundreds of yuan, but the transmission distance of 2.4G is relatively stable, but the transmission distance is short, the maximum open distance is 100 m, and if a wall exists, the transmission distance is shortened greatly, so that the scheme has no great practical value.
The mainstream access control systems in the existing market have different defects, for example, a card swiping access control system utilizing the RFID radio frequency technology needs a card medium, is easy to copy and has poor safety; if the biological identification access control system using the biotechnology is used, although the safety is good, the repetition probability is less, and the system is not easy to copy, the cost is high, the identification rate is low, and the requirements on the environment and the user are high; if the two-dimension code is used as an access control system of an identity recognition carrier, although the cost is low and the manufacture is easy, personal information is easy to leak due to the large information amount of the two-dimension code, and potential safety hazards exist. In addition, in the transmission mode, wiring and networking are required during wired transmission, the engineering quantity is large, and the construction is complicated; short communication distance, unstable communication, radio frequency policy restrictions, and the like in wireless transmission
In summary, the applicant has found that the prior art has at least the following technical problems:
1. the access control system is deployed in a wired mode, so that the engineering quantity is large and the complexity is high;
2. the access control system is short in wireless deployment wireless distance and high in environmental requirement.
SUMMERY OF THE UTILITY MODEL
The access control system is large in engineering quantity and high in complexity due to wired deployment; adopt wireless deployment wireless distance short and to the technical problem that the environment required height or solve above-mentioned technical problem at least partially, this application provides a novel visual intercom system of cloud entrance guard.
The application provides a novel visual intercom system of cloud entrance guard, include: the system comprises an outdoor unit machine, an encryption device, a first wireless communication module, a cloud server, a second wireless communication module, an indoor machine and an intelligent terminal;
the outdoor unit comprises a first audio and video acquisition device and a first audio and video playing device, and the intelligent terminal is used for installing a user side APP; the indoor unit comprises a first audio and video acquisition device and a first audio and video playing device, the outdoor unit is communicated with the cloud server in a two-way mode, the intelligent terminal is communicated with the cloud server in a two-way mode, the indoor unit comprises a second audio and video acquisition device and a second audio and video playing device, and the encryption device is used for encrypting and decrypting data between the outdoor unit and the cloud server, between the intelligent terminal and the cloud server and between the indoor unit and the cloud server.
Preferably, the outdoor unit is an authentication device.
Preferably, the identity authentication device comprises one or more of a call intercom device, a face recognition device, a password input device, a two-dimensional code recognition device and bluetooth.
Preferably, the novel cloud entrance guard visual intercom system further comprises a positioning module, and the positioning module is connected to the first wireless communication module.
Preferably, the positioning module comprises a Beidou positioning module and/or a GPS positioning module.
Preferably, the first wireless communication module comprises a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
Preferably, the second wireless communication module comprises a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: novel visual intercom system of cloud entrance guard comprises modules such as cloud ware, outdoor unit machine, encryption device, indoor unit, first wireless communication module, intelligent terminal and second wireless communication module, encrypts the transmission through encryption device to data, and the security is good, and cloud ware is as high in the clouds brain, can improve entrance guard's distinguishable rate, and the function is abundant many units, and user side APP through intelligent terminal installation can real-time remote management, realizes the high-efficient interconnection of people and space, equipment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a composition of a novel cloud entrance guard visual intercom system provided in an embodiment of the present application;
fig. 2 is a schematic view of a working principle of the novel cloud entrance guard visual intercom system provided in the embodiment of the present application.
Icon:
1. an outdoor unit machine; 2. an encryption device; 3. a first wireless communication module; 4. a cloud server; 5. a second wireless communication module; 6. indoor machines; 7. and (4) an intelligent terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
For convenience of understanding, the following detailed description is provided for a novel cloud entrance guard visual intercom system provided in an embodiment of the present application, and referring to fig. 1 to fig. 2, a novel cloud entrance guard visual intercom system includes: the system comprises an outdoor unit machine 1, an encryption device 2, a first wireless communication module 3, a cloud server 4, a second wireless communication module 5, an indoor machine 6 and an intelligent terminal 7;
the outdoor unit machine 1 comprises a first audio and video acquisition device and a first audio and video playing device, and the intelligent terminal 7 is used for installing a user side APP; the outdoor unit machine 1 is in bidirectional communication with the cloud server 4, the intelligent terminal 7 is in bidirectional communication with the cloud server 4, the indoor machine 6 comprises a second audio and video acquisition device and a second audio and video playing device, and the encryption device 2 is used for encrypting and decrypting data between the outdoor unit machine 1 and the cloud server, between the intelligent terminal 7 and the cloud server 4 and between the indoor machine 6 and the cloud server 4.
In some embodiments of the present application, the outdoor unit 1 may generate door opening call information, where the door opening call information includes a first audio/video streaming media; the first audio/video streaming media comprise audio/video information of a visitor, an owner and other users who want to pass through the access control, which is acquired by the first audio/video acquisition device;
the encryption device 2 is used for encrypting the door opening call information; as an example, the cryptographic apparatus 2 is a hardware dongle;
the first wireless communication module 3 is used for transmitting the encrypted door opening call information to the cloud server 4;
the cloud server 4 processes the door opening call information and forwards the door opening call information to corresponding indoor machines 6 and user side APPs of the intelligent terminal 7; the cloud server 4 can be installed with software for encryption and decryption, and the decryption software decrypts the encrypted first audio/video streaming media and processes the decrypted first audio/video streaming media, for example, identifies audio information in the first audio/video streaming media by a voice identification technology, determines the number of the user to be called and the owner, or extracts image information in the first audio/video streaming media by an image processing technology to perform image identification, and determines the number of the user to be called and the owner;
the indoor unit 6 and the intelligent terminal 7 are used for receiving and playing the first audio and video streaming media and transmitting a response signal back to the cloud server 4, wherein the response signal comprises a second audio and video streaming media; the response signal comprises a signal which is automatically transmitted back to the cloud server 4 after the indoor unit machine 6 and the intelligent terminal 7 agree to establish communication connection with the outdoor unit machine 1, and the signal is used for indicating that a communication link between the outdoor unit machine 1 and the indoor unit machine 6 can be connected.
The second wireless communication module 5 is used for transmitting the response signal to the outdoor unit 1;
the outdoor unit machine 1 is used for receiving and playing the second audio/video streaming media. And playing the second audio and video streaming media through the first audio and video playing device. The second audio/video streaming media comprise audio/video information of the user, which is acquired by the second audio/video acquisition device;
in some embodiments of the present application, the outdoor unit 1 is an authentication device.
In some embodiments of the present application, the authentication device includes one or more of a call intercom device, a face recognition device, a password input device, a two-dimensional code recognition device, and bluetooth.
In some embodiments of the present application, the novel cloud entrance guard visual intercom system further includes a positioning module, the positioning module is connected to the first wireless communication module 3, and in some embodiments of the present application, the positioning module includes a beidou positioning module and/or a GPS positioning module.
The system comprises a positioning module, a first wireless communication module 3, a cloud server and other equipment (such as an indoor machine or an intelligent terminal), wherein the positioning module is used for generating position information of the access control places according to the scene that the access control places in different areas and the distance between the access control places is far, and the other equipment (such as the indoor machine or the intelligent terminal) accesses the cloud server to obtain the position information of the access control places, so that the position of a visitor can be conveniently and quickly positioned.
In some embodiments of the present application, the first wireless communication module 3 comprises a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
In some embodiments of the present application, the second wireless communication module 5 includes a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
The working process of the novel cloud entrance guard visual intercom system is introduced as follows: the owner or visitor can select the door opening mode on the outdoor unit 1, where the door opening mode may be a door opening call by calling an intercom, performing face recognition by using a face recognition device, inputting a temporary password through a password input device (such as a mechanical key keyboard), scanning a two-dimensional code through a two-dimensional code recognition device, or directly inputting a bluetooth connection password through a bluetooth connection for verification, and the like.
The following takes the user (visitor or owner) to select the call talkback as an example, and introduces the working principle of the novel cloud gate inhibition visual talkback system:
1. when selecting call talkback:
(1) after a owner or a visitor or other users who want to pass through the door control (hereinafter referred to as visitors) press the number of a calling interphone on the outdoor unit machine 1, dialing is selected;
(2) after automatically generating call information containing audio and video streaming media on the outdoor unit machine 1, encrypting the call information by using a hardware dongle;
the method comprises the steps that a first audio and video acquisition device acquires audio data or audio and video data of a visitor to generate call information containing audio and video streaming media, namely the first audio and video streaming media;
(3) the outdoor unit machine 1 uploads calling information to a cloud brain through wireless communication;
here, as described in connection with the above example, the first wireless communication module, that is, the 4G communication module, the 5G communication module, or the NB-IOT communication module, may implement wireless communication, and the cloud brain, that is, the cloud server 4, and the cloud server 4 carries a hub processing function, which is similar to a human brain, and thus can be called a cloud brain.
(4) Judging the house number and the owner by the cloud brain according to the calling information;
(5) the cloud brain forwards the calling information to the indoor machine 6 and the owner APP of the corresponding account number;
an artificial intelligence algorithm can be arranged in the cloud brain, namely the cloud server 4, and is used for intelligently analyzing and processing the received first audio and video streaming media, for example, the house number information and owner information (such as owner names or owner codes) contained in the call information can be judged according to the first audio and video streaming media, and the first audio and video streaming media are encrypted and then transmitted to the indoor machine 6 or the intelligent terminal 7 of the corresponding house number;
(6) after the indoor unit 6 or the owner APP is switched on and answered, playing first audio and video streaming media from the outdoor unit 1 on the indoor unit 6 and the owner APP; the user can visually see the audio and video information of the visitor through the second audio and video playing device;
(7) meanwhile, the indoor unit 6 or the owner APP sends the response streaming media back to the cloud brain through wireless communication.
(8) And then transmitted to the corresponding outdoor unit machine 1 by the cloud brain.
(9) Response streaming media from the indoor unit 6 or the owner APP is played on the outdoor unit machine 1, and bidirectional real-time visual intercommunication between the outdoor unit machine 1 and the indoor unit 6 or the owner APP is achieved.
Owner APP also is above-mentioned user side APP, the property APP also can be installed to the property, the response streaming media includes answer signal and second audio frequency and video streaming media, after the owner switches on, can pass back the answer signal and give cloud ware 4, and simultaneously, the audio frequency and video information (being second audio frequency and video streaming media) of the access control system's that second audio frequency and video collection system gathered authorizes the person (for example, owner) encrypt the back through second wireless communication module 5, cloud ware 4 transmits to off-premises station unit, after encryption device deciphers it, second audio frequency and video play device plays.
As another example, when the visitor selects face recognition:
(1) after the outdoor unit machine 1 is installed and before the outdoor unit machine is formally started, firstly, downloading the face recognition libraries of all owners in the outdoor unit machine from the cloud brain and storing the face recognition libraries locally;
(2) after the outdoor unit machine 1 is formally started, in normal operation, if the cloud brain is updated by the owner face recognition library, the face recognition library stored in the outdoor unit machine 1 is automatically updated;
(3) after the outdoor unit machine 1 is formally started, in normal operation, when the owner opens the door through face recognition, the outdoor unit machine 1 automatically shoots and recognizes according to a face recognition algorithm, and the door is automatically opened after successful recognition.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a novel visual intercom system of cloud entrance guard which characterized in that includes: the system comprises an outdoor unit machine, an encryption device, a first wireless communication module, a cloud server, a second wireless communication module, an indoor machine and an intelligent terminal;
the outdoor unit comprises a first audio and video acquisition device and a first audio and video playing device, and the intelligent terminal is used for installing a user side APP; the indoor unit comprises a first audio and video acquisition device and a first audio and video playing device, the outdoor unit is communicated with the cloud server in a two-way mode, the intelligent terminal is communicated with the cloud server in a two-way mode, the indoor unit comprises a second audio and video acquisition device and a second audio and video playing device, and the encryption device is used for encrypting and decrypting data between the outdoor unit and the cloud server, between the intelligent terminal and the cloud server and between the indoor unit and the cloud server.
2. The new visual intercom system as in claim 1 wherein said outdoor unit is an authentication device.
3. The novel cloud entrance guard visual intercom system according to claim 2, wherein the authentication device comprises one or more of a calling intercom device, a face recognition device, a password input device, a two-dimensional code recognition device and Bluetooth.
4. The novel cloud access control visual intercom system of claim 1 further comprising a location module, said location module connected to said first wireless communication module.
5. The novel cloud access control visual intercom system according to claim 4 wherein said positioning module comprises a Beidou positioning module and/or a GPS positioning module.
6. The novel cloud entry visual intercom system according to claim 1, wherein said first wireless communication module comprises a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
7. The novel cloud entry visual intercom system according to claim 1, wherein said second wireless communication module comprises a 4G communication module and/or a GPRS communication module and/or a 5G communication module and/or an NB-IOT communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022911362.XU CN214012068U (en) | 2020-12-08 | 2020-12-08 | Novel cloud entrance guard visual intercom system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022911362.XU CN214012068U (en) | 2020-12-08 | 2020-12-08 | Novel cloud entrance guard visual intercom system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214012068U true CN214012068U (en) | 2021-08-20 |
Family
ID=77309831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022911362.XU Active CN214012068U (en) | 2020-12-08 | 2020-12-08 | Novel cloud entrance guard visual intercom system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214012068U (en) |
-
2020
- 2020-12-08 CN CN202022911362.XU patent/CN214012068U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105303659B (en) | A kind of gate inhibition's personal identification method and device based on ultrasonic wave | |
| CN106506442B (en) | A kind of smart home multi-user identification and its Rights Management System | |
| JP4524306B2 (en) | Authorization method | |
| CN103116922B (en) | Networking management system and management method for wireless gate lock | |
| CN107967741A (en) | Double-channel testimony of a witness in-one intelligent lock control method and system | |
| CN202523131U (en) | Intelligent visitor management system based on Android operating platform | |
| CN106023373A (en) | Big data and human face identification based access control system for school dormitory | |
| CN103795540B (en) | Mobile device, authentication device and right discriminating system | |
| US20180359635A1 (en) | Securitization of Temporal Digital Communications Via Authentication and Validation for Wireless User and Access Devices | |
| CN105654584A (en) | Access control monitoring method and system thereof | |
| JP2002511968A (en) | Method, system and apparatus for identifying a person | |
| CN105659244A (en) | Security system, apparatus and method using additional code | |
| CN104778773A (en) | System and method for controlling entrance guard by mobile phone | |
| CN102663846A (en) | Intelligent visitor management system based on android operating platform and control method thereof | |
| CN107492173A (en) | A kind of cloud password access control system and method | |
| CN102497531A (en) | Human face recognition wireless video monitoring system based on cloud computing platform | |
| CN106875092A (en) | A kind of movable police patrols special policeman's system | |
| CN105261100A (en) | Entrance guard unlocking method and system | |
| KR101622154B1 (en) | Security device using portable certification device including tag reader and personal certification function | |
| CN106850671A (en) | The identity identifying method and its system of a kind of utilization acoustic communication | |
| CN109002875A (en) | Two dimensional code encryption method, two dimensional code Transmission system and storage medium | |
| KR101765080B1 (en) | smart door lock system based on iot and the method thereof | |
| CN110009792A (en) | A kind of WIFI intelligent doorbell unlocking system and method based on recognition of face | |
| CN114022838A (en) | Wisdom people management system based on wisdom thing allies oneself with | |
| CN111968275A (en) | Intelligent lock, and communication method and device of intelligent building visual intercom system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |