CN111275871A - Embedded access control system and operation method thereof - Google Patents
Embedded access control system and operation method thereof Download PDFInfo
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- CN111275871A CN111275871A CN202010192461.9A CN202010192461A CN111275871A CN 111275871 A CN111275871 A CN 111275871A CN 202010192461 A CN202010192461 A CN 202010192461A CN 111275871 A CN111275871 A CN 111275871A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
Abstract
The invention discloses an embedded access control system and an operation method thereof, wherein the system comprises an electromagnetic door lock and a relay connected with the electromagnetic door lock; further comprising: the camera is used for acquiring a face image and a real-time scene of a monitoring area and generating face recognition data and monitoring scene data; the information input module is used for inputting pre-stored information and inputting an unlocking key; the infrared detector is used for detecting the biological temperature characteristics of the detection area and generating biological characteristic data; the server is used for receiving and storing the face recognition data, the monitoring scene data, the prestored information, the input unlocking key and the biological temperature characteristic data, is electrically connected with the relay and outputs a high-level or low-level electric signal to the relay, and the relay controls the opening and closing of the electromagnetic door lock; the audio output module is connected with the server and is controlled by the server to output audio information.
Description
Technical Field
The invention relates to the technical field of access control, in particular to an embedded access control system and an operation method thereof.
Background
Today, as society becomes increasingly information-oriented, the use of computers and networks has fully penetrated everyday life. The application of embedded systems is everywhere seen, for example: aerospace, automotive, medical, industrial control, etc. have large-scale applications of embedded systems.
Along with the popularization of intelligent life and intelligent home concepts in recent years, the embedded system is closer to the life of people, replaces the traditional products and becomes an important component of intelligent life. The rapid development of intelligent access control systems is typical of the intelligent access control systems. Compared with the traditional door lock, the door lock has the advantages that functions such as fingerprint identification, face identification and voice identification are added, the traditional key and the traditional password are replaced, and the unlocking is realized by using biological characteristics. The fingerprint identification is hidden, simple and efficient when having advantages. The facial features are one of the natural human recognition features, and can be recognized only by people in front of the door without redundant actions. And people can be distinguished by faces naturally, and the unification of mechanical and human recognition modes provides possibility for realizing more functions in the future.
Many of present face identification access control systems still stop logging in facial, discernment unblock simple stage, and the function is single, and the security level is low, only an isolated point in the furniture. It can be roughly summarized as follows:
1. the face recognition speed is inefficient. Due to the limitation of cost control and development period, the hardware of face recognition is relatively backward, and although the recognition requirement can be met, the speed is not high, and the addition of a neural network is lacked. And the recognition algorithm is relatively backward, and the situation of multiple recognition often appears.
2. The access control system is closed and is not interconnected with other equipment through a network, so that the functions of remote reminding, control, information checking and the like are lacked.
3. For example, high-frequency pulses generated by a Tesla coil easily cause the system to crash and restart, and the system generally defaults to the unlocking of a door lock after restarting, so that the system is cracked, ② potential safety level is low, and the system cannot store facial data of strangers who try to unlock the door lock so as to remind a master to prevent potential danger.
4. The functionality is redundant. Many devices incorporate speech recognition or fingerprint recognition based on face recognition. These functions are used less frequently and increase much development cost, reducing investment in algorithms and interconnect.
5. The cost is high. At present, the selling price of the face recognition door lock is more than thousand yuan. More than 3000 products. Compared with the traditional door lock, the cost required by a user is increased by more than ten times.
Disclosure of Invention
Aiming at the situation of the prior art, the invention aims to provide an embedded access control system which is flexible in mechanism, good in experience, convenient to control and good in safety protection effect and an operation method thereof.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an embedded access control system comprises an electromagnetic door lock and a relay connected with the electromagnetic door lock; it still includes:
the camera is used for acquiring a face image and a real-time scene of a monitoring area and respectively generating face identification data and monitoring scene data;
the information input module is used for inputting pre-stored information and inputting an unlocking key;
the infrared detector is used for detecting the biological temperature characteristics of the detection area and generating biological characteristic data;
the server is used for receiving and storing face recognition data and monitoring scene data generated by the camera, prestored information and an input unlocking key which are input by the information input module, biological temperature characteristic data generated by the infrared detector, and carrying out corresponding feedback operation according to a preset program, is also electrically connected with the relay and outputs a high-level or low-level electric signal to the relay, and controls the opening and closing of the electromagnetic door lock by the relay;
and the audio output module is connected with the server and is controlled by the server to output audio information.
As one of possible implementation manners, further, the server is a local server.
As a second possible implementation manner, the system further comprises a communication module connected to the server, and the server is in communication connection with the internet and the remote terminal through the communication module respectively and performs data interaction.
As a possible implementation manner, further, the information entry module is an input keyboard.
As a possible implementation manner, further, the audio output modules are sound boxes, which are respectively disposed indoors and outdoors.
The operation method of the embedded access control system comprises the steps that a visitor mode and a home mode are preset in a server;
the visitor mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs a preset prompt audio to the audio output module, the audio output module located outdoors plays the prompt audio, and meanwhile, the step (1) is returned according to a preset period;
the home mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs preset prompt audio to the audio output module, and the audio output module located indoors plays the prompt audio.
As a possible implementation manner, further, when the mobile terminal is in the visitor mode, the server records the times that the fitting degree of the biological feature data and the face recognition data in the preset period is lower than the preset percentage, and triggers the server to send the prompt message to the remote terminal through the communication module according to the preset times.
As a possible implementation manner, in the visitor mode or the home mode, the face recognition data and the biometric data when the door lock is opened are both sent to the internet cloud end for storage through the server in the form of data packets.
As a possible implementation manner, further, the method further includes that the remote terminal transmits a one-time key to a server, and the remote terminal is a mobile phone, a PAD, a smart watch, or a notebook computer.
As a possible implementation manner, further, the server is pre-stored with pre-input face recognition data, and the face recognition data corresponds to operation authorities that are not identical.
Based on the above possible embodiments, the following cooperation effect can be achieved:
(1) can identify the function of the owner whether the owner is at home
The system reads the current position of the host mobile phone through the positioning information of the remote terminal (such as the mobile phone) to judge whether the host is at home. The master enters a home-returning mode at home: when a person visits, the voice prompt is sent indoors. The system enters guest mode when not at home: besides the indoor voice prompt, the mobile phone app can also send out the prompt to remind people of visiting.
(2) Intelligent visitor/stranger identification function
The system has the function of simultaneously identifying a plurality of faces. When the owner and the stranger are simultaneously present in the identification scene, the stranger is identified as the visitor, and the data is added into the timestamp for storage, so that the user can conveniently check the people who visit the house. The user can set the time for which these data are saved according to the size of the storage space.
(3) Visitor function
After the visitor mode is selected to be started, when the face of the visitor is detected by the camera, if the owner is not at home, the visitor image can be sent to the mobile phone app, the owner is reminded by sending a message, and the door lock system can broadcast the set visitor voice in advance. And the voice can also be set not to be played temporarily, and when the remote end of the host is set in a user-defined way, the voice playing method comprises the following steps: and the visitor is replied after the voice, such as 'you are good, the owner is not at home temporarily' and the like.
(4) Intelligent sleep function
Because the face recognition scene of the access control system is in a static state most of the time, the system is awakened when the external scene is changed by utilizing the real-time comparison of the camera to the external scene, and the rest of the time is in the dormancy time according to the system, thereby achieving the purpose of energy conservation. The function is a command line application program and a language code library, and is used for detecting scene changes in the video, so that the function of only being capable of sleeping and starting and stopping is achieved.
(5) Human body feature detection function
The camera is used for obtaining the solid geometric characteristics of the human face, and the infrared sensor is used for detecting temperature data which accord with biological characteristics. At the hardware level, the difficulty of cracking is high. The function uses the traditional detection technology and combines with a visual algorithm, a useless detection window is rapidly provided, and the efficiency is higher.
(6) End data synchronization function
And uploading the unlocking data and time and the unlocking user name to a cloud administrator account through a connection network. Meanwhile, the door lock fault can be notified in a message form, so that a user can prevent brute force from being cracked in time. When there is no network signal, the data is stored in the local database.
(7) Disposable password and remote control function
The system retains password unlocking and can provide a password-one and password-use expiration interval in the networked state. The administrator can open and close the door lock and modify the user permission at the cloud.
(8) Multi-way unlocking function
The system can realize face, password and key unlocking. Wherein the key unlock is consistent with the traditional door lock and has the highest right hardware limit. Even if the system is not in operation, the lock can still be unlocked by the key.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: the system module of the scheme of the invention is simple, flexible in operation and high in unlocking efficiency, is suitable for remote control or local servo control, and in addition, after the communication module is combined, the remote control can be realized, so that the operation mode is more humanized and intelligent, and the reliability and convenience are improved.
Drawings
The invention will be further explained with reference to the drawings and the detailed description below:
FIG. 1 is a schematic diagram of a schematic connection scheme of the present invention;
fig. 2 is a schematic diagram of the logic of the present invention.
Detailed Description
As shown in fig. 1, the embedded access control system of the present invention includes an electromagnetic door lock and a relay connected to the electromagnetic door lock; it still includes:
the camera is used for acquiring a face image and a real-time scene of a monitoring area and respectively generating face identification data and monitoring scene data;
the information input module is used for inputting pre-stored information and inputting an unlocking key;
the infrared detector is used for detecting the biological temperature characteristics of the detection area and generating biological characteristic data;
the server is used for receiving and storing face recognition data and monitoring scene data generated by the camera, prestored information and an input unlocking key which are input by the information input module, biological temperature characteristic data generated by the infrared detector, and carrying out corresponding feedback operation according to a preset program, is also electrically connected with the relay and outputs a high-level or low-level electric signal to the relay, and controls the opening and closing of the electromagnetic door lock by the relay;
and the audio output module is connected with the server and is controlled by the server to output audio information.
As a possible implementation manner, the system further comprises a communication module connected to the server, the server is in communication connection with the internet and a remote terminal through the communication module respectively, and data interaction is performed, the remote terminal can be a mobile phone, a PAD, a smart watch or a notebook computer, and an App which interacts with the server information is built in the remote terminal; if the off-line single machine is used, the server can use a local server.
In addition, in order to facilitate instruction input, as a possible implementation manner, the information entry module is further an input keyboard.
In order to distinguish the indoor and outdoor audio prompts, the audio output module can be a plurality of sound boxes which are respectively arranged indoors and outdoors.
Based on the scheme shown in fig. 1, in combination with fig. 2, the general and brief workflow of the scheme may be:
1. inputting face data and account information of a user, and keeping the system in a dormant state in standby.
2. When the camera detects the change of an external scene, the system is started, firstly, the algorithm is carried out to carry out face feature detection and infrared biological feature detection, and when the face is confirmed, the server sends an instruction to the audio output module and sends a prompt tone to prompt a user to scan the posture.
3. The camera shoots face head portrait information and feeds generated data back to the server, the characteristic points of the face and facial contour of the five sense organs are detected and identified by using an algorithm packet arranged in the server, and compared with the characteristic point data of the face of the account in the database, when the fitting degree of the characteristic points reaches a certain percentage, the system outputs high level to pins of an external relay through verification, the relay is powered on, the electromagnetic mechanism of the door lock is powered off, and the door lock is opened. And when the fitting degree does not reach the standard, the system sends a prompt without passing the verification.
4. And when the lock is unlocked, the door lock state and the unlocking account are sent to the cloud server in the form of a data packet.
Based on the above scheme, the advantages of the scheme and the implementation of the technology which can be further expanded may be as follows:
1. the application of the face recognition algorithm, a neural network is utilized to carry out a large amount of image training in the early stage, and during recognition, a face window in a picture is extracted, the detection of a face contour is carried out, geometric feature points of the face are extracted, and the similarity of the existing face features is compared;
2. the method comprises the steps of realizing intelligent classification of human faces, namely identifying the distance of relative positions by adopting a wide-angle lens in the identification of multiple human faces in the same scene, removing useless detection windows, and storing a user cut image appearing in the same scene with a host into a database one by one according to the similarity of human faces;
3. the ups power supply of the system is switched without delay, namely the ups power supply can be switched to a standby power supply within millisecond grade through a static switch during power failure, and the power supply is supplied for 12 hours, so that the situation that a door lock is opened during power failure is prevented;
4. prevent cracking-the system deals with brute force cracking-high frequency pulse cracking-external data invasion cracking-use the face model to crack.
Based on a possible implementation form of the technical expansion, as an intelligent operation method of the embedded access control system, the embedded access control system can operate in the following form:
the server is preset with a visitor mode and a home mode;
the visitor mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs a preset prompt audio to the audio output module, the audio output module located outdoors plays the prompt audio, and meanwhile, the step (1) is returned according to a preset period;
the home mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs preset prompt audio to the audio output module, and the audio output module located indoors plays the prompt audio.
When the mobile phone is in the visitor mode, the server records the times that the fitting degree of the biological feature data and the face recognition data in a preset period is lower than a preset percentage, and triggers the server to send prompt information to the remote terminal through the communication module according to the preset times.
In addition, in the visitor mode or the home mode, the face recognition data and the biological characteristic data when the door lock is opened are sent to the internet cloud end to be stored in a data packet mode through the server.
In order to improve convenience, a remote terminal can be arranged in the server in the scheme and transmits a disposable secret key to the server, the remote terminal is a mobile phone, a PAD, a smart watch or a notebook computer, and after the disposable secret key is input through an information input module, the unlocking permission of the disposable secret key is automatically deleted by the server after a door lock is started.
In order to improve the operation authority of different people, as a possible implementation manner, further, the server is pre-stored with pre-input face recognition data, and the face recognition data correspond to operation authorities that are not identical.
The foregoing is directed to embodiments of the present invention, and equivalents, modifications, substitutions and variations such as will occur to those skilled in the art, which fall within the scope and spirit of the appended claims.
Claims (10)
1. An embedded access control system comprises an electromagnetic door lock and a relay connected with the electromagnetic door lock; the method is characterized in that: it still includes:
the camera is used for acquiring a face image and a real-time scene of a monitoring area and respectively generating face identification data and monitoring scene data;
the information input module is used for inputting pre-stored information and inputting an unlocking key;
the infrared detector is used for detecting the biological temperature characteristics of the detection area and generating biological characteristic data;
the server is used for receiving and storing face recognition data and monitoring scene data generated by the camera, prestored information and an input unlocking key which are input by the information input module, biological temperature characteristic data generated by the infrared detector, and carrying out corresponding feedback operation according to a preset program, is also electrically connected with the relay and outputs a high-level or low-level electric signal to the relay, and controls the opening and closing of the electromagnetic door lock by the relay;
and the audio output module is connected with the server and is controlled by the server to output audio information.
2. The embedded access control system of claim 1, wherein: the server is a local servo server.
3. The embedded access control system of claim 1, wherein: the server is in communication connection with the internet and the remote terminal through the communication module respectively, and data interaction is achieved.
4. The embedded access control system of claim 1, wherein: the information input module is an input keyboard.
5. The embedded access control system of claim 1, wherein: the audio output module is a sound box which is provided with a plurality of sound boxes respectively arranged indoors and outdoors.
6. The operation method of the embedded access control system according to one of claims 1 to 5, characterized in that: the server is preset with a visitor mode and a home mode;
the visitor mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs a preset prompt audio to the audio output module, the audio output module located outdoors plays the prompt audio, and meanwhile, the step (1) is returned according to a preset period;
the home mode comprises the following steps:
(1) the camera monitors a preset monitoring area in real time and feeds monitoring data back to the server;
(2) the server calls a preset program to identify images according to the monitoring data fed back by the camera;
when the fed back monitoring data has no image change, the server enters a standby dormant mode;
when the fed back monitoring data has image change, the server is awakened to enter a working mode, a face recognition program is called to perform face recognition on the monitoring data fed back by the camera, and meanwhile, an infrared detector is called to perform biological temperature characteristic scanning on biological characteristics of a detection area and generate biological characteristic data; and continuing to perform the following operations:
1. when the fitting degree of the biological characteristic data and the face recognition data reaches a preset percentage, the server outputs a high level to the relay, the relay is powered on, the electromagnetic door lock is powered off, and the door lock is opened;
2. when the fitting degree of the biological characteristic data and the face recognition data is lower than the preset percentage, the server outputs preset prompt audio to the audio output module, and the audio output module located indoors plays the prompt audio.
7. The operation method of the embedded access control system according to claim 6, characterized in that: when the mobile phone is in the visitor mode, the server records the times that the fitting degree of the biological feature data and the face recognition data in the preset period is lower than the preset percentage, and triggers the server to send prompt information to the remote terminal through the communication module according to the preset times.
8. The operation method of the embedded access control system according to claim 6, characterized in that: in visitor's mode or mode at home, face identification data and biological characteristic data when the lock is opened all can be stored in the internet high in the clouds through the server in the data packet form.
9. The operation method of the embedded access control system according to claim 6, characterized in that: the server stores a disposable secret key transmitted by the remote terminal to the server, and the remote terminal is a mobile phone, a PAD, an intelligent watch or a notebook computer.
10. The operation method of the embedded access control system according to claim 6, characterized in that: the server is internally pre-stored with face recognition data which are not completely identical in operation authority.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112671622A (en) * | 2020-12-24 | 2021-04-16 | 珠海格力电器股份有限公司 | Safety monitoring method and device based on intelligent mobile equipment and intelligent mobile equipment |
| CN113506399A (en) * | 2021-06-03 | 2021-10-15 | 山西三友和智慧信息技术股份有限公司 | Wisdom campus access control system based on artificial intelligence |
-
2020
- 2020-03-18 CN CN202010192461.9A patent/CN111275871A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112671622A (en) * | 2020-12-24 | 2021-04-16 | 珠海格力电器股份有限公司 | Safety monitoring method and device based on intelligent mobile equipment and intelligent mobile equipment |
| CN112671622B (en) * | 2020-12-24 | 2022-06-14 | 珠海格力电器股份有限公司 | Safety monitoring method and device based on intelligent mobile equipment and intelligent mobile equipment |
| CN113506399A (en) * | 2021-06-03 | 2021-10-15 | 山西三友和智慧信息技术股份有限公司 | Wisdom campus access control system based on artificial intelligence |
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