CN214403105U - Intelligent door lock and intelligent door lock system - Google Patents
Intelligent door lock and intelligent door lock system Download PDFInfo
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- CN214403105U CN214403105U CN202021014362.3U CN202021014362U CN214403105U CN 214403105 U CN214403105 U CN 214403105U CN 202021014362 U CN202021014362 U CN 202021014362U CN 214403105 U CN214403105 U CN 214403105U
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Abstract
The utility model provides an intelligence lock and intelligent lock system relates to the tool to lock field, has solved the remote management problem that can not insert the intelligent lock of internet. In the system, a near field communication connection is established between an intelligent door lock and a door lock user side; the door lock user side establishes remote communication connection with the door lock management side through the server; the system comprises a door lock user side, a door lock management side and a server, wherein the door lock user side is used for sending a first request message to the door lock management side through the server, and the first request message is used for requesting door lock operation indication information; the door lock operation instruction information comprises an operation instruction; the door lock management terminal is used for sending door lock operation indication information to the door lock user terminal through the server after acquiring the door lock operation indication information according to the first request message; the intelligent door lock is used for receiving an operation instruction sent by a door lock user side and executing operation according to the operation instruction; or the door lock operation instruction information is used for prompting the operation for triggering the operation instruction; the intelligent door lock is used for responding to the operation instruction and executing operation according to the operation instruction.
Description
Technical Field
The utility model relates to a tool to lock field especially relates to intelligent lock and intelligent lock system.
Background
The intelligent door lock is a lock which is more intelligent and simpler in the aspects of user safety and management. The intelligent door lock is an execution component for locking a door in an access control system. The intelligent door lock is combined with the current mobile internet, and can utilize an intelligent terminal (such as a mobile phone) to perform remote management functions of remote opening, remote setting, remote monitoring and the like.
At present, an intelligent door lock needs to be accessed to the internet when remote management is to be achieved, the intelligent door lock is generally accessed to the internet by adopting two schemes, one scheme is that the door lock is firstly accessed to a locally deployed gateway through a near-end communication protocol (such as Bluetooth, zigbee, 433, 2.5G and the like), the locally deployed gateway is connected with a wireless fidelity (WIFI) router, the gateway is connected with the WIFI router through a WIFI network, the Internet is accessed through the WIFI router, and the other scheme is that the intelligent door lock is directly accessed to the Internet through the WIFI router.
In the two modes of accessing the intelligent door lock to the internet, a gateway or a WIFI router needs to be separately deployed, so that the hardware cost is increased, and the intelligent door lock (such as a Bluetooth door lock) which cannot be accessed to the internet cannot be remotely managed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligence lock and intelligent lock system has solved and has carried out remote management's problem to the intelligent lock that can not insert the internet.
In a first aspect, an intelligent door lock system is provided, which includes: the system comprises an intelligent door lock, a door lock user side, a server and a door lock management side; the intelligent door lock and the door lock user side establish close range communication connection; the door lock user side establishes remote communication connection with the door lock management side through the server; the system comprises a door lock user side, a door lock management side and a server, wherein the door lock user side is used for sending a first request message to the door lock management side through the server, and the first request message is used for requesting door lock operation indication information; the door lock operation instruction information comprises an operation instruction; the door lock management terminal is used for sending door lock operation indication information to the door lock user terminal through the server after acquiring the door lock operation indication information according to the first request message; the intelligent door lock is used for receiving an operation instruction sent by a door lock user side and executing operation according to the operation instruction; or the door lock operation instruction information is used for prompting the operation for triggering the operation instruction; the intelligent door lock is used for responding to the operation instruction and executing operation according to the operation instruction.
Therefore, remote management can be realized for the door lock which can not be accessed to the Internet through transfer of the door lock user side, and the remote management of a door lock manager on the door lock is facilitated.
In a possible implementation manner, the door lock user side is further configured to send a second request message to the intelligent door lock; the second request message is used for requesting a key; the intelligent door lock is also used for acquiring the secret key according to the second request message and sending the secret key to the door lock user side; the first request message includes a key; the door lock management end is also used for encrypting the operation instruction according to the secret key; the door lock operation instruction information comprises an encrypted operation instruction; the door lock user side is also used for sending door lock operation instruction information to the intelligent door lock; and the intelligent door lock is specifically used for decrypting the encrypted operation instruction and executing operation according to the operation instruction.
Therefore, the operation instruction is encrypted, so that the safety management of the intelligent door lock by the door lock management end is realized, and the operation of the door lock cannot be realized under the condition of no secret key for the equipment intercepting the message.
In another possible implementation manner, the door lock management end is further used for acquiring an administrator password; the operation instruction comprises an administrator password; and the intelligent door lock is specifically used for decrypting the encrypted operation instruction, verifying the password of the administrator, and executing operation according to the operation instruction if the password passes the verification.
In another possible implementation manner, the intelligent door lock is further configured to send a random number to a user side of the door lock; the first request message further includes a random number; the operation instruction further comprises a random number and/or an administrator password; and the intelligent door lock is specifically used for decrypting the encrypted operation instruction, verifying the administrator password and/or the random number, and executing operation according to the operation instruction if the verification is passed. In this way, the security of the remote management door lock is further enhanced.
In another possible implementation manner, the intelligent door lock is further configured to send the execution result of the operation instruction to the door lock management end through the door lock user end.
The second aspect of the invention provides an intelligent door lock, which is characterized by comprising a near field communication module and a processing module, wherein the near field communication module is used for establishing communication connection with a door lock user side and receiving an operation instruction sent by the door lock user side through the established communication connection; the operation instruction is sent to the door lock user side by the door lock management side through the server; the processing module is used for executing operation according to the operation instruction. Thus, the utility model discloses a remote management of the lock that can not insert the internet has been realized in the transfer of lock user side.
In a possible implementation manner, the near field communication module is further configured to receive a key request message sent by a door lock user side; the processing module is also used for acquiring a key according to the key request message; the near field communication module is also used for sending a secret key to the door lock user side; the secret key is used for encrypting an operation instruction at the door lock management end; and the processing module is specifically used for decrypting the encrypted operation instruction and executing operation according to the operation instruction. Therefore, the operation instruction is encrypted, the safety management of the door lock by the door lock management end is realized, and the operation of the door lock cannot be realized under the condition of no secret key for the equipment intercepting the message.
In another possible implementation, the operation instruction includes an administrator password; and the processing module is specifically used for decrypting the encrypted operation instruction, verifying the administrator password, and executing operation according to the operation instruction if the verification is passed.
In another possible implementation manner, the near field communication module is further configured to send a random number to the door lock user side; the operation instruction comprises a random number and/or an administrator password; and the processing module is specifically used for decrypting the encrypted operation instruction, verifying the random number and/or the administrator password, and executing operation according to the operation instruction if the verification is passed.
In another possible implementation manner, the near field communication module is further configured to send the execution result of the operation instruction to the door lock management terminal through the door lock user terminal.
The utility model discloses in, the name of equipment or module does not constitute the restriction to equipment or functional module itself in above-mentioned intelligent lock and intelligent lock system, and in the actual realization, these equipment or functional module can appear with other names. Insofar as the function of each device or functional module is similar to the present invention, it is within the scope of the present invention and the equivalents thereof.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent door lock system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an intelligent door lock according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a hardware structure of an intelligent door lock to which an embodiment of the present invention is applied.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," in an embodiment of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic structural diagram of an intelligent door lock system according to an embodiment of the present invention. As shown in fig. 1, the intelligent door lock system includes an intelligent door lock 100, a door lock user terminal 101, a door lock management terminal 102, and a server 103. Wherein, the near field communication connection is established to intelligent lock 100 and lock user 101, if: any one of a bluetooth connection, a zigbee connection, an infrared data connection, or the like. The door lock user terminal 101 establishes a remote communication connection with the door lock management terminal 102 through the server 103. Such as: wireless communication connections, and the like.
The system comprises a door lock user side 101, a door lock management side 102 and a door lock management server, wherein the door lock user side is used for sending a first request message to the door lock management side, and the first request message is used for requesting door lock operation indication information; the door lock operation instruction information includes an operation instruction. Specifically, the operation instruction includes: any one of newly creating a door opening certificate, prolonging the validity period of the door opening certificate, losing the door opening certificate, deleting the door opening certificate, inquiring the door opening certificate or modifying the door opening certificate and the like. The door opening voucher may be at least one of card information, a character password, a two-dimensional code, a three-dimensional code, a bar code or a biometric feature. The biological characteristics include: at least one of fingerprint information, voice print information, iris information, or face image information. The door lock user terminal 101 is used for sending an operation instruction to the intelligent door lock 100.
Optionally, the door lock user 101 is further configured to send a second request message to the intelligent door lock 100; the second request message is used for requesting a key; the intelligent door lock 100 is further configured to obtain the key according to the second request message, and send the key to the door lock user 101; the first request message includes a key; the door lock management end 102 is further used for encrypting the operation instruction according to the secret key; the door lock operation instruction information includes an encrypted operation instruction.
And the door lock management terminal 102 is configured to obtain the door lock operation instruction information according to the first request message, and send the door lock operation instruction information to the door lock user terminal 101 through the server 103.
The intelligent door lock 100 is used for receiving an operation instruction sent by a door lock user side 101 and executing operation according to the operation instruction; for example, when the operation instruction is a door opening instruction, the intelligent door lock 100 receives the operation instruction sent by the door lock user 101, and then performs a door opening operation. In this way, the holder of the door-lock user terminal 101 can perform the door opening operation using the door-lock user terminal 101.
Or the door lock operation instruction information is used for prompting the operation for triggering the operation instruction; the smart door lock 100 is configured to respond to an operation instruction and perform an operation according to the operation instruction. Illustratively, when the operation instruction is a new door opening certificate, the door lock operation instruction information comprises a temporary password and instruction information for creating the door opening certificate. The indication information for creating the door opening credential may include: and inputting the temporary password, and collecting the biological characteristics of the owner of the door lock user side 101 or collecting the password input by the owner of the door lock user side 101. The intelligent door lock 100 creates a door opening certificate corresponding to the user identifier of the door lock user 101 according to the action of the door lock user 101 owner triggering the operation instruction.
The server 103 stores a corresponding relationship between each user identifier of one or more user identifiers and the door opening credential. The server 103 is configured to receive a first request message sent by the door lock user 101, and after generating a new request message according to the first request message, send a new request message to the door lock management end 101, where the new request message includes a door opening credential corresponding to the user identifier. Alternatively, the server 103 is configured to forward the first request message to the door lock management terminal 102.
Illustratively, when the first request message is a door opening credential corresponding to a user identifier for extending the door lock user 101, the server obtains the door opening credential corresponding to the user identifier of the first request message sender according to a correspondence between each user identifier in the plurality of user identifiers and the door opening credential, and generates a new request message, where the new request message includes the door opening credential corresponding to the user identifier of the first request message sender.
It is understood that the correspondence between each of the one or more user identifiers stored in the server 103 and the door opening credential may be stored in the door lock management terminal 102.
Optionally, the intelligent door lock 100 is specifically configured to decrypt the encrypted operation instruction and execute an operation according to the operation instruction.
Optionally, the intelligent door lock 100 is further configured to send a random number to the door lock user 101; the first request message also includes a random number.
Illustratively, the smart door lock 100 is configured to obtain a random number and store the random number before sending the key to the door lock client 101. The smart door lock 100 transmits the key to the door lock user 101 together with the random number.
Optionally, the operation instruction comprises an administrator password and/or a random number.
Optionally, the door lock manager 102 is further configured to obtain an administrator password. The utility model does not limit the realization mode of the door lock management terminal 102 for acquiring the password of the administrator; in one implementation, the door lock manager 102 is configured to obtain an administrator password in response to an administrator password input operation by a user. In another implementation, the door lock manager 102 is configured to obtain a pre-stored administrator password.
Illustratively, the door lock management terminal 102 is configured to generate an operation instruction after receiving the first request message, encrypt the operation instruction, and send the encrypted operation instruction to the door lock user terminal 101. Wherein the operation instruction comprises an administrator password and a random number.
Optionally, the intelligent door lock 100 is specifically configured to decrypt the encrypted operation instruction, verify the administrator password and/or the random number, and execute an operation according to the operation instruction if the verification passes.
Illustratively, the smart door lock 100 decrypts the operation instruction according to the stored decryption key corresponding to the encryption key sent to the door lock user 101, obtains the administrator password and the random number, compares the administrator password with the administrator password stored in the smart door lock 100, compares the random number with the random number stored in the smart door lock 100, if the administrator password is the same and the random number is the same, the verification is passed, and the smart door lock 100 executes the corresponding operation according to the operation instruction (e.g., extending the validity period of the door opening certificate corresponding to the user identifier of the door lock user 101). If not, the intelligent door lock 100 does not execute the operation corresponding to the operation command.
Therefore, the operation instruction is encrypted, so that the safety management of the intelligent door lock by the door lock management end is realized, and the operation of the door lock cannot be realized under the condition of no secret key for the equipment intercepting the message.
Optionally, the intelligent door lock 100 is further configured to send an execution result of the operation instruction to the door lock management terminal 102 through the door lock user terminal 101.
Illustratively, after the intelligent door lock 100 extends the validity period of the door opening certificate corresponding to the user identifier of the door lock client 101, the new validity period of the door opening certificate is sent to the door lock management client 102 through the door lock client 101.
As shown in fig. 2, the structure schematic diagram of the intelligent door lock provided by the present invention, the intelligent door lock 100 includes a near field communication module 201 and a processing module 202, wherein the near field communication module 201 is configured to establish a communication connection with a door lock user side and receive an operation instruction sent by the door lock user side through the established communication connection; the operation instruction is sent to the door lock user side by the door lock management side through the server.
The processing module 202 is configured to perform operations according to the operation instructions.
Optionally, the near field communication module 201 is further configured to receive a key request message sent by the door lock user. The processing module 202 is further configured to obtain the key according to the key request message. The near field communication module 201 is further configured to send a key to the door lock user side; the key is used for the door lock management end to encrypt the operation instruction. The processing module 202 is specifically configured to decrypt the encrypted operation instruction and execute an operation according to the operation instruction.
Optionally, the operation instruction includes an administrator password; the processing module 202 is specifically configured to decrypt the encrypted operation instruction, verify the administrator password, and execute an operation according to the operation instruction if the verification is passed.
Optionally, the near field communication module 201 is further configured to send a random number to the door lock user side; the operation instruction comprises a random number and/or an administrator password; the processing module 202 is specifically configured to decrypt the encrypted operation instruction, verify the random number and/or the administrator password, and execute an operation according to the operation instruction if the verification is passed.
Optionally, the near field communication module 201 is further configured to send an execution result of the operation instruction to the door lock management end through the door lock user end.
Optionally, the intelligent door lock 100 further includes an information acquisition module 203, and the information acquisition module is connected to the processing module 202. The information acquisition module 203 is used for acquiring the door opening voucher when a holder at the door lock user side executes the operation of triggering the newly-built door opening voucher. The intelligent door lock 100 further includes a storage module 204, configured to store a correspondence between the collected door opening credential and the user identifier of the holder at the user side of the door lock.
The embodiment of the utility model provides an including the near field communication module among the intelligent lock, wherein, the near field communication module is used for carrying out the information interaction with the door lock user side to convey corresponding information to lock management end through the door lock user side, and receive the instruction that lock management end sent through the door lock user side, and be applied to intelligent lock with this instruction, thereby realized the remote management to this intelligent lock. The hardware overhead of the intelligent door lock accessing to the Internet is reduced.
The intelligent door lock 100, the door lock user terminal 101, the door lock management terminal 102 and the server 103 can be implemented by the electronic device 30 shown in fig. 3, and the electronic device 30 can include a processor 301, a communication line 302, a memory 303 and at least one communication interface 304.
The processor 301 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs that control the functions of the present invention.
The communication link 302 may include a path for communicating information between the aforementioned components (e.g., the at least one processor 301, the communication link 302, the memory 303, and the at least one communication interface 304).
When the electronic device 30 is a door lock, the communication interface 304 may include: when the electronic device 30 is a door lock user terminal, a door lock management terminal, or a server, the communication interface 304 uses any transceiver or other device for communicating with other devices or communication networks, such as a Wide Area Network (WAN), a Local Area Network (LAN), and the like.
The memory 303 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 303, which may be separate, is coupled to the processor 301 via the communication line 302. The memory 303 may also be integrated with the processor 301. Embodiments of the present invention provide that memory 303 may be generally non-volatile. The memory 303 is used for storing computer instructions for executing the functions of the present invention, and is controlled by the processor 301. Processor 301 is configured to execute computer instructions stored in memory 303 to implement the functions of the apparatus provided by the embodiments of the present invention.
In one embodiment, the electronic device 30 may include a plurality of processors, and each of the processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
In particular implementations, electronic device 30 may also include an output device 305 and/or an input device 306, as one embodiment. The output device 305 is in communication with the processor 301 and may display information in a variety of ways. For example, the output device 305 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 306 is in communication with the processor 301 and may receive user input in a variety of ways. For example, input device 306 may be a mouse, keyboard, touch screen device, microphone, camera, physical password keyboard or sensing device, and the like.
In one example, referring to FIG. 2, the functionality of the near field communication module 201 described above can be implemented by the communication interface 304 of FIG. 3. The functions of the processing module 202 described above may be implemented by the processor 301 in fig. 3 calling a computer program stored in the memory 303. The information collecting module 203 can be implemented by the input device 306 in fig. 3. The storage module 204 may be implemented by the memory 303 in fig. 3. For example, the specific functions of the door lock user terminal 101 and the door lock management terminal 102 may be implemented by applications (e.g., a mobile phone APP, a wechat applet, etc.) in the electronic device 30 (e.g., a terminal device such as a mobile phone, a palm computer, a tablet computer, a notebook computer, or a desktop computer).
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The intelligent door lock is characterized by comprising a near field communication module and a processing module, wherein the near field communication module is used for establishing communication connection with a door lock user side and receiving an operation instruction sent by the door lock user side through the established communication connection; the operation instruction is sent to the door lock user side by the door lock management side through the server;
the processing module is used for executing operation according to the operation instruction.
2. The intelligent door lock of claim 1,
the near field communication module is also used for receiving a key request message sent by the door lock user side;
the processing module is further configured to obtain a key according to the key request message;
the near field communication module is also used for sending the secret key to the door lock user side; the secret key is used for encrypting the operation instruction by the door lock management end;
the processing module is specifically configured to decrypt the encrypted operation instruction and execute an operation according to the operation instruction.
3. The intelligent door lock of claim 2, wherein the operating instruction comprises an administrator password;
the processing module is specifically configured to verify the administrator password, and if the administrator password passes the verification, execute an operation according to the operation instruction.
4. The intelligent door lock of claim 2, wherein the near field communication module is further configured to send a random number to the door lock user; the operation instruction comprises the random number and/or an administrator password;
the processing module is specifically configured to verify the random number and/or the administrator password, and if the random number and/or the administrator password passes the verification, execute an operation according to the operation instruction.
5. The intelligent door lock according to any one of claims 1 to 4, wherein the near field communication module is further configured to send an execution result of the operation instruction to the door lock management terminal through the door lock user terminal.
6. An intelligent door lock system applied to the intelligent door lock of any one of claims 1 to 5, the intelligent door lock system comprising: the system comprises an intelligent door lock, a door lock user side, a server and a door lock management side; the intelligent door lock and the door lock user side establish close range communication connection; the door lock user side establishes remote communication connection with the door lock management side through the server;
the door lock user side is used for sending a first request message to the door lock management side through the server, wherein the first request message is used for requesting door lock operation indication information; the door lock operation instruction information comprises an operation instruction;
the door lock management terminal is used for sending the door lock operation indication information to the door lock user terminal through the server after acquiring the door lock operation indication information according to the first request message;
the intelligent door lock is used for receiving the operation instruction sent by the door lock user side and executing operation according to the operation instruction; or the door lock operation instruction information is used for prompting the operation for triggering the operation instruction; the intelligent door lock is used for responding to the operation instruction and executing operation according to the operation instruction.
7. The intelligent door lock system according to claim 6,
the door lock user side is also used for sending a second request message to the intelligent door lock; the second request message is used for requesting a key;
the intelligent door lock is further used for acquiring a secret key according to the second request message and sending the secret key to the door lock user side;
the first request message includes the key;
the door lock management end is also used for encrypting the operation instruction according to the secret key; the door lock operation instruction information comprises the encrypted operation instruction;
the door lock user side is also used for sending the door lock operation instruction information to the intelligent door lock;
the intelligent door lock is specifically used for decrypting the encrypted operation instruction and executing operation according to the operation instruction.
8. The intelligent door lock system according to claim 7,
the door lock management end is also used for acquiring an administrator password; the operation instruction comprises the administrator password;
the intelligent door lock is specifically used for verifying the administrator password, and if the administrator password passes the verification, the intelligent door lock executes operation according to the operation instruction.
9. The intelligent door lock system according to claim 7, wherein the intelligent door lock is further configured to send a random number to the door lock user side; the first request message further includes the nonce; the operation instruction further comprises the random number and/or an administrator password;
the intelligent door lock is specifically used for verifying the administrator password and/or the random number, and if the administrator password and/or the random number pass the verification, the intelligent door lock executes operation according to the operation instruction.
10. The intelligent door lock system according to any one of claims 6 to 9,
the intelligent door lock is further used for sending the execution result of the operation instruction to the door lock management end through the door lock user end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021014362.3U CN214403105U (en) | 2020-06-05 | 2020-06-05 | Intelligent door lock and intelligent door lock system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021014362.3U CN214403105U (en) | 2020-06-05 | 2020-06-05 | Intelligent door lock and intelligent door lock system |
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| CN214403105U true CN214403105U (en) | 2021-10-15 |
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| CN202021014362.3U Active CN214403105U (en) | 2020-06-05 | 2020-06-05 | Intelligent door lock and intelligent door lock system |
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