CN117727113A

CN117727113A - NFC technology-based door lock control device, NFC equipment, system and method

Info

Publication number: CN117727113A
Application number: CN202311558205.7A
Authority: CN
Inventors: 周剑; 王兴伟; 蒋一杰; 高龙
Original assignee: Singapore Shanghuazhu Holdings Ltd
Current assignee: Huazhu Technology Private Ltd
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-03-19

Abstract

The application provides a door lock control device, NFC equipment, a system and a method based on NFC technology, wherein the device comprises: NFC tags; the controller is used for writing starting application data into the NFC tag in an initial state, monitoring data change of the NFC tag, checking unlocking request data when the NFC device writes the unlocking request data into the NFC tag, and sending an unlocking instruction to the lock body when the checking is successful, wherein the NFC device is configured to start data processing application and write the unlocking request data into the NFC tag when the NFC device scans the NFC tag and acquires the starting application data. The door lock control device can be applied to unlocking control of an intelligent door lock, NFC card numbers and NFC communication functions are preset in the door lock through NFC labels, information interaction is carried out through NFC equipment, the function of unblanking without sense is achieved, user operation in the unlocking process is reduced as much as possible, and the whole unlocking process is more convenient and rapid.

Description

NFC technology-based door lock control device, NFC equipment, system and method

Technical Field

The application relates to the technical field of intelligent door locks, in particular to a door lock control device, NFC equipment, a system and a method based on NFC technology.

Background

An intelligent door lock is a door lock that is distinguished from a conventional door lock by not requiring a physical key. It is most advantageous in that it is not necessary to carry a key for the door lock. The physical key is removed, so that great convenience is brought to the user. Meanwhile, the physical key is easy to lose or steal, inconvenience and potential safety hazard are brought to users, and the safety of the intelligent door lock is generally higher than that of the traditional door lock. Therefore, intelligent door locks are favored by more and more people.

The current mode of realizing intelligent unlocking by using a communication technology mainly comprises the following steps:

(1) The door is opened by adopting an entity IC card, the IC card information is input through a card manufacturing machine, and the IC card information is read and checked at the door lock side through NFC (Near Field Communication ) technology, so that the door is opened. This way, an additional IC card needs to be carried, and the IC card may be inconsistent with the authorized person, and the IC card itself cannot bind the identity information of the operator.

(2) The mobile phone is adopted to simulate IC card door opening, entity IC card information is written into the NFC module of the mobile phone, an unlocking access control card is generated in the wallet of the mobile phone, NFC card number reading and checking are achieved through the collision of the mobile phone and the door lock, and door opening is achieved. The mode does not need to additionally carry an IC physical card, and the door opening operation is simple. However, an additional mobile phone analog card operation is required to be added, card information is read into the NFC module of the mobile phone, the IC card may be inconsistent with an authorized person, and the IC card cannot bind the identity information of an operator. And, mobile phone NFC unblanks and need to carry out the multistep operation of opening APP and selecting corresponding analog card. When the NFC of the mobile phone is used as a tag, the system logic is complex, and the mobile phone is easy to couple with other mobile phone functions to cause discontinuous flow. In terms of analog card operation, a user needs to simulate an NFC door card newly every time he/she is about to dock a door lock, and in terms of long-term use, the user has to simulate an NFC door card again every time he/she is in store, which is very inconvenient to use. In addition, the existing unlocking operation by adopting the NFC technology is complex, a user needs to execute a plurality of operations on the mobile phone to unlock smoothly, and the unlocking operation is very inconvenient to use.

(3) The mobile phone Bluetooth mode is adopted for opening the door, and even if Bluetooth communication is established between the mobile phone and the door lock, the door is opened through communication and verification by the APP. The mode does not need to additionally carry an IC entity card, the mobile phone APP has good compatibility, and the mobile phone APP can complete information interaction and authorization of the door lock through Bluetooth communication, so that a door opening function is realized. However, when the user uses the Bluetooth connection system, the APP needs to be additionally opened and selected, if the Bluetooth connection process is interrupted, the door opening request needs to be resent, the operation process is complex, the use stability cannot be guaranteed, and the use experience is poor.

Disclosure of Invention

Aiming at the problems in the prior art, the aim of the application is to provide a door lock control device, NFC equipment, a system and a method based on NFC technology, which realize strong binding of personnel and door lock authorities, greatly simplify the operation steps when unlocking, and are more convenient and faster to use.

The embodiment of the application provides a door lock control device based on NFC technology, which comprises:

NFC tags;

the controller is used for writing the NDEF data of the starting application into the NFC tag in an initial state, monitoring the data change of the NFC tag, checking the unlocking request data when the NFC device writes the unlocking request data into the NFC tag, and sending an unlocking instruction to the lock body when the checking is successful, wherein the NFC device is configured to start the data processing application and write the unlocking request data into the NFC tag when the NFC device scans the NFC tag and acquires the NDEF data of the starting application.

In some embodiments, the controller is further configured to send a lock-dropping instruction to the lock body after a preset time interval after sending the unlocking information to the lock body.

In some embodiments, the controller is further configured to reset data in the NFC tag after sending a lock-down instruction to the lock body, and write NDEF data of a start application to the NFC tag.

In some embodiments, the controller is further configured to write unlocking result data to the NFC tag after sending unlocking information to the lock body.

In some embodiments, the controller is further configured to control a prompting device to send a prompting message when the verification of the unlocking request data fails, and write an unlocking failure result into the NFC tag.

The embodiment of the application also provides an NFC device, including:

the tag communication module is used for scanning an NFC tag of the door lock control device and reading NDEF data of starting application in the NFC tag;

and the data processing module is used for calling a data processing application when the NDEF data is acquired, analyzing the NDEF data through the data processing application and writing unlocking request data into the NFC tag.

In some embodiments, the tag communication module is further configured to read unlocking result data in the NFC tag, and the data processing application is further configured to display an unlocking success notification or an unlocking failure notification according to the unlocking result data.

The embodiment of the application also provides a door lock control system based on NFC technology, which comprises:

the door lock control device; and

the NFC equipment is provided.

The embodiment of the application also provides a door lock control method based on NFC technology, which adopts the door lock control system, and comprises the following steps:

the controller writes start application data to the NFC tag in an initial state;

the controller monitors the data change of the NFC tag;

the NFC equipment scans an NFC tag of a door lock control device and reads NDEF data of an application started in the NFC tag;

the NFC equipment analyzes the NDEF data through the data processing application and writes unlocking request data into the NFC tag;

the controller monitors that unlocking request data newly written by NFC equipment exists in the NFC tag, and verifies the unlocking request data;

and after the controller passes the verification, sending an opening instruction to the lock body.

In some embodiments, after the controller passes the verification, the method further includes the following steps after sending an opening instruction to the lock body:

the controller writes unlocking result data into the NFC tag;

the NFC equipment reads unlocking result data in the NFC tag, and displays an unlocking success notification according to the unlocking result data;

after a preset time interval, the controller sends a lock falling instruction to the lock body;

and the controller resets the data in the NFC tag, and writes the NDEF data for starting the application into the NFC tag.

The door lock control device, the NFC equipment, the system and the method based on the NFC technology have the following advantages:

the door lock control device can be applied to unlocking control of an intelligent door lock, NFC card numbers and NFC communication functions are preset in the door lock through NFC labels, information interaction is carried out through NFC equipment, the function of unblanking without sense is achieved, user operation in the unlocking process is reduced as much as possible, the whole unlocking process is more convenient and rapid, communication safety is guaranteed through encryption and authentication mechanisms of NFC technology, safety problems existing in a traditional door lock can be effectively prevented, such as key loss, password leakage and the like, risks of illegal invasion are greatly reduced due to short-distance communication characteristics of NFC communication, and safety of door lock use is greatly improved. The method and the device can be applied to various environments such as hotels, apartments, offices, warehouses and the like, and the convenience of use is greatly improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.

Fig. 1 is a block diagram of a door lock control device based on NFC technology according to an embodiment of the present application;

fig. 2 is a block diagram of the structure of an NFC device according to an embodiment of the present application;

FIG. 3 is a flow chart of a door lock control method according to an embodiment of the present application;

fig. 4 is a timing chart of a door lock control method according to an embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. "or", "or" in the specification may each mean "and" or ". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe various example features and elements of the present application, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure to fall within the scope of this application. Although the terms "first" or "second" etc. may be used herein to describe certain features, these features should be interpreted in a descriptive sense only and not for purposes of limitation as to the number and importance of the particular features.

NFC technology is a short-range communication technology that operates at a frequency of 13.56MHz, within 10 cm of communication distance, with short connection setup time (typically within 1 second), and with faster transmission speeds (three of 106Kbit/s, 212Kbit/s, or 424 Kbit/s). NFC transfer data is safe, efficient and low in power consumption, and the current middle-high-end intelligent equipment basically supports the NFC function. NFC provides higher security as a new generation of near field communication technology. The NFC technology adopts an advanced authentication mechanism, and ensures the security of communication through encryption and authentication.

As shown in fig. 1, the present application provides a door lock control device based on NFC technology, which includes an NFC tag and a controller. The controller, namely the MCU, is used for writing the NDEF data for starting the application into the NFC tag in an initial state and monitoring the data change of the NFC tag. And the data format recorded in the NFC tag is an NDEF format. The NFC Data Exchange Format (NDEF) is a standardized data format that can be used to exchange information between any compatible NFC device and another NFC device or tag. The NFC device may write unlock request data to the NFC tag after scanning the NFC tag. When the controller monitors that the NFC equipment writes unlocking request data into the NFC tag, the controller checks the unlocking request data, and when the check is successful, an unlocking instruction is sent to the lock body. The door lock control device can be arranged in the door lock, for example, the door lock control device is arranged above the door handle according to the traditional card reading area, so that a user can conveniently use NFC equipment to scan.

As shown in fig. 2, an embodiment of the present application further provides an NFC device, including: the tag communication module is used for scanning an NFC tag of the door lock control device and reading NDEF data of starting application in the NFC tag; and the data processing module is used for calling a data processing application when the NDEF data is acquired, analyzing the NDEF data through the data processing application and writing unlocking request data into the NFC tag. The embodiment of the application also provides a door lock control system based on NFC technology, which comprises: the door lock control device; and the NFC equipment. The NFC device may be, for example, a mobile phone, and the data processing application is an APP installed in the mobile phone for processing NDEF data. In this application, the NFC device is taken as an example of a mobile phone, but the application is not limited thereto, and in different embodiments, the NFC device may also be a tablet computer or other portable devices, which also falls within the protection scope of the application.

Therefore, the door lock control device can be applied to the unlocking control of an intelligent door lock, NFC card numbers and NFC communication functions are preset in the door lock through NFC labels, information interaction is carried out through NFC equipment, the function of unlocking without sense is achieved, user operation in the unlocking process is reduced as much as possible, the whole unlocking process is more convenient and rapid, communication safety is ensured through encryption and authentication mechanisms of NFC technology, safety problems existing in a traditional door lock can be effectively prevented, such as key loss, password leakage and the like, and risks of illegal invasion are greatly reduced due to short-distance communication characteristics of NFC communication, so that safety of door lock use is greatly improved. The method and the device can be applied to various environments such as hotels, apartments, offices, warehouses and the like, and the convenience of use is greatly improved.

In this embodiment, the controller is further configured to send a lock-dropping instruction to the lock body after a preset time interval after sending the unlocking information to the lock body, so as to implement an automatic lock-dropping function. The time length of the preset time interval can be set according to needs, and the application is not limited.

In this embodiment, the controller is further configured to reset data in the NFC tag after sending a lock-down instruction to the lock body, that is, reset the data in the NFC tag to NDEF data for starting an application, so that the door lock control device may be repeatedly used.

In this embodiment, the controller is further configured to write unlocking result data into the NFC tag after sending unlocking information to the lock body, and when verification of the unlocking request data fails, control a prompting device to send prompting information, and write unlocking failure results into the NFC tag. The prompting device can be a display screen, an indicator light, a loudspeaker and the like, and the corresponding prompting information can be a displayed prompting text, indicator light, prompting sound and the like. Therefore, in this embodiment, the tag communication module of the NFC device is further configured to read unlocking result data in the NFC tag, and the data processing application is further configured to display an unlocking success notification or an unlocking failure notification according to the unlocking result data.

As shown in fig. 3, the embodiment of the present application further provides a door lock control method based on NFC technology, and the door lock control system is adopted, where the method includes the following steps:

the controller monitors the data change of the NFC tag;

In this embodiment, after the controller passes the verification, the method further includes the following steps after sending an opening instruction to the lock body:

the controller writes unlocking result data into the NFC tag;

the controller resets data in the NFC tag.

Fig. 4 shows a timing chart of the door lock control method of the present application. The NFC device is divided into an operating system of the device itself and a data processing application. As shown in fig. 4, in this embodiment, the specific implementation manner of the door lock control method includes the following steps:

firstly, starting a door lock, and enabling a controller, an NFC tag and a lock body to enter a ready state;

the controller writes NDEF data for starting the application into the NFC tag to finish initializing the NFC tag, wherein the data comprises a plurality of Record data;

the controller monitors the data change of the NFC tag, so that unlocking operation can be executed after unlocking request data are received;

after unlocking the NFC equipment by holding the NFC equipment by a user, the operating system enters an NFC scanning state and approaches to the NFC tag;

reading the NDEF data of the starting application in the NFC tag by the operating system, analyzing the Record data, and retrieving the installed application capable of processing the NDEF data in the operating system;

when the operating system does not retrieve the application capable of processing the NDEF data, the operating system jumps to an application market to download the application capable of processing the NDEF data, and then the subsequent steps are continued;

when the operating system retrieves an application capable of processing the NDEF data, the operating system wakes up the application and sends the NDEF data to the application;

after receiving the NDEF data, the application analyzes the NDEF data and jumps to an unlocking page, so that the application generates unlocking request data and writes the unlocking request data into an NFC label of the door lock;

the controller monitors unlocking request data written in the NFC tag by the NFC equipment, checks the unlocking request data, and checks whether the unlocking request data is legal and effective;

when the controller checks that the unlocking request data fails, sending out a voice prompt of unlocking failure, writing an unlocking result into the NFC tag, and resetting the data of the NFC tag as NDEF data for starting the application after delaying for 1 second;

when the controller checks unlocking request data successfully, an unlocking instruction is sent to the lock body, an unlocking success voice prompt is sent, an unlocking success result is written into the NFC tag, and a 5-second timer is started at the same time;

after the unlocking success result is read by the application of the NFC equipment, prompting the user that the unlocking is successful at the application side;

after unlocking is successful for 5 seconds, the door lock sends a locking falling instruction to the lock body, the lock body enters a locking state, and meanwhile data of the NFC tag are reset to NDEF data for starting the application. The times 1 second and 5 seconds listed here are only examples, and the actual time may be set as needed.

In summary, the door lock control device, the NFC device, the system and the method based on the NFC technology provided by the present application have the following advantages:

The foregoing is a further detailed description of the present application in connection with the specific preferred embodiments, and it is not intended that the practice of the present application be limited to such description. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.

Claims

1. A door lock control device based on NFC technology, characterized by comprising:

NFC tags;

2. The NFC technology-based door lock control device according to claim 1, wherein the controller is further configured to send a lock-down instruction to the lock body after a preset time interval after sending the unlock information to the lock body.

3. The door lock control device based on NFC technology according to claim 2, wherein the controller is further configured to reset data in the NFC tag after sending a lock-down instruction to the lock body, and write NDEF data for starting an application to the NFC tag.

4. The NFC technology-based door lock control device according to claim 1, wherein the controller is further configured to write unlocking result data to the NFC tag after transmitting unlocking information to the lock body.

5. The door lock control device based on NFC technology according to claim 1, wherein the controller is further configured to control a prompting device to send a prompting message when the verification of the unlocking request data fails, and write an unlocking failure result into the NFC tag.

6. An NFC device, comprising:

7. The NFC device of claim 6, wherein the tag communication module is further configured to read unlocking result data in the NFC tag, and wherein the data processing application is further configured to display an unlocking success notification or an unlocking failure notification according to the unlocking result data.

8. A door lock control system based on NFC technology, comprising:

the door lock control apparatus of claim 1; and

the NFC device of claim 6.

9. A door lock control method based on NFC technology, characterized in that the door lock control system according to claim 8 is adopted, the method comprising the steps of:

the controller monitors the data change of the NFC tag;

10. The door lock control method based on NFC technology according to claim 9, wherein after the controller passes the verification, the controller sends an unlock command to the lock body, further comprising the steps of:

the controller writes unlocking result data into the NFC tag;