Anti-theft method, device and anti-theft system

Abstract

The present invention provides an anti-theft method, device and anti-theft system. The anti-theft method includes the following steps: in response to receiving the door opening information sent by the smart door lock, obtaining the real-time location information of the smart phone; calculating the distance difference according to the real-time location information and the preset door lock location information of the smart door lock; if the distance difference exceeds the preset distance threshold, generating an alarm signal to trigger the smart phone to sound an alarm. The anti-theft method can enable the smart phone to have an anti-theft alarm function. When the user is out, if the door lock of the residence is opened by others, the user can know it in time through the smart phone.

Description

Technical Field

[0001] The present invention relates to the field of intelligent anti-theft technology, and in particular to an anti-theft method, device and anti-theft system. Background Art

[0002] With the development of science and technology, smart devices such as smart phones have become more and more popular in people's lives, and have even become an indispensable part. When people go out, they usually carry their mobile phones. However, ordinary smart phones are usually used for telephone communication, entertainment, and work matters, and do not have smart anti-theft functions. That is, when someone illegally enters your residence, you cannot know the theft through the smart phone. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the embodiments of the present invention provide an anti-theft method, device and anti-theft system. The anti-theft method can enable a smart phone to have an anti-theft alarm function. When the user is out, if the door lock of the residence is opened by others, the user can know it in time through the smart phone.

[0004] According to a first aspect of an embodiment of the present invention, there is provided an anti-theft method, comprising the following steps:

[0005] In response to receiving the door opening information sent by the smart door lock, obtaining the real-time location information of the smart phone;

[0006] Obtaining a distance difference value by calculating the real-time location information and the preset door lock location information of the smart door lock;

[0007] If the distance difference exceeds a preset distance threshold, an alarm signal is generated to trigger the smartphone to sound an alarm;

[0008] The smart phone includes a householder's mobile phone and several family members' mobile phones; the real-time location information includes first real-time location information corresponding to the householder's mobile phone and second real-time location information corresponding to the family members' mobile phones;

[0009] The calculating and obtaining the distance difference according to the real-time position information and the preset door lock position information of the smart door lock includes:

[0010] Obtaining a first distance difference value by calculation according to the first real-time location information and the preset door lock location information of the smart door lock;

[0011] Obtaining a second distance difference value by calculation according to the second real-time location information and the preset door lock location information of the smart door lock;

[0012] If the distance difference exceeds the preset distance threshold, an alarm signal is generated to trigger the smart phone to send out an alarm, the method is:

[0013] When both the first distance difference and the second distance difference exceed a preset distance threshold, an alarm signal is generated to trigger the smart phone to sound an alarm;

[0014] When the first distance difference or the second distance difference does not exceed the preset distance threshold, the door opening information is ignored and no alarm signal is generated;

[0015] When the first distance difference or the second distance difference does not exceed the preset distance threshold, the values ​​of the first distance difference and the second distance difference are compared to obtain the corresponding smartphone with the larger distance difference, and an inquiry message is sent to the smartphone with the larger distance difference to prompt whether it is necessary to call the smartphone with the smaller distance difference for anti-theft reminder.

[0016] According to a second aspect of an embodiment of the present invention, there is provided an anti-theft device for executing the above-mentioned anti-theft method, comprising:

[0017] A response module, used for obtaining real-time location information of the smart phone in response to receiving door opening information sent by the smart door lock;

[0018] A calculation module, used for calculating and obtaining a distance difference according to the real-time position information and the preset door lock position information of the smart door lock;

[0019] The alarm module is used to generate an alarm signal to trigger the smart phone to sound an alarm if the distance difference exceeds a preset distance threshold.

[0020] According to a third aspect of an embodiment of the present invention, there is provided an anti-theft system, comprising a smart door lock and an anti-theft server; the anti-theft server and the smart door lock establish communication, and the smart door lock sends door opening information to the anti-theft server;

[0021] The anti-theft server receives the door opening information and executes the anti-theft method described in any one of the above embodiments.

[0022] By applying the above-mentioned technical scheme of the embodiment of the present invention, the real-time location information of the smart phone is obtained by receiving the door opening information sent by the smart door lock. When the real-time location of the smart phone is far away from the location of the door lock, it means that the user is out. At this time, if the door opening information is received, an alarm signal is generated to trigger the smart phone to sound an alarm, so that the user can know the door lock opening status in time through the smart phone, which is convenient for the user to take preventive measures and improve the safety of the user's residence.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

[0024] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of an anti-theft system according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a flow chart of an anti-theft method according to an embodiment of the present application;

[0028] Figure 3 This is a flow chart of step S2 of the anti-theft method according to an embodiment of the present application;

[0029] Figure 4 This is a structural block diagram of an anti-theft device according to an embodiment of the present application;

[0030] Figure 5 This is a structural block diagram of a smart door lock shown in one embodiment of the present application;

[0031] Figure 6 This is a schematic block diagram of the structure of an anti-theft server shown in one embodiment of the present application. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0033] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the present invention, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" / "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0035] People usually carry their mobile phones when they go out. However, ordinary smart phones are usually used for telephone communication, entertainment, work matters, etc., and do not have intelligent anti-theft functions. When the residence is illegally entered by others, it is impossible to know the theft through the smart phone. The embodiment of the present invention is intended to solve the above technical problems and provide corresponding technical solutions, which can enable the smart phone to have an anti-theft function. When the user is out, if the door lock of the residence is illegally opened, the user can know it in time through the smart phone, which is convenient for the user to take preventive measures and improve the safety of the residence.

[0036] The following is an explanation through specific examples.

[0037] The application environment of the anti-theft method in this application is an anti-theft system, and the anti-theft method is applied to an anti-theft server in a smart home system. Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of an anti-theft system according to an embodiment of the present application.

[0038] The anti-theft system includes a smart door lock 100, an anti-theft server 200 and several smart phones 300; the smart door lock 100 and the several smart phones 300 all establish communication with the anti-theft server 200 to achieve the transmission of anti-theft signals.

[0039] like Figure 5 As shown, the smart door lock 100 includes a processor 101, a memory 102, a communication module 103 and a door opening detection module 104 electrically connected to the processor 101; the memory 102 stores an anti-theft application, and the processor 101 establishes communication with the anti-theft server 200 through the communication module, and can also establish communication with the smart phone 300. The door opening detection module 104 is used to detect whether the door lock is touched or opened, and the processor 101 executes the anti-theft application stored in the memory 102 to send door opening information to the anti-theft server 200.

[0040] like Figure 6As shown, the anti-theft server 200 includes a processor 210, a memory 240 and a communication module 260 electrically connected to the processor 210; the memory 240 stores an anti-theft application, and the processor 210 implements the anti-theft method in this application when executing the anti-theft application stored in the memory 240. The anti-theft server 200 can be a smart device such as a desktop computer, a tablet computer, a smart phone, etc. In this embodiment, the anti-theft server 200 is described as a smart phone.

[0041] The smart phone 300 is a smart phone for the user and his family. Several smart phones 300 establish communication with the anti-theft server 200 to achieve the transmission of relevant signals. The smart phone 300 is installed with a GPS positioning module, a Beidou positioning module, or other positioning modules, which are not limited here, as long as the positioning of the smart phone 300 can be achieved, so as to facilitate the acquisition of the real-time location information of the smart phone 300.

[0042] According to a first aspect of an embodiment of the present invention, an anti-theft method is disclosed, and the method is applied to an electronic device. The electronic device can implement the anti-theft method of the present application by pure software, or by a combination of software and hardware. The electronic device can run an application for executing the anti-theft method, and the application can be presented in a form suitable for the electronic device, for example, it can be an APP application. In some examples, it can also be presented in the form of a system plug-in, a web page plug-in, etc. In the following, the present application is described with the electronic device as an anti-theft server, and the anti-theft server can be a smart device such as a desktop computer, a tablet computer, a smart phone, etc. In this embodiment, the anti-theft server 200 is described as a smart phone.

[0043] See also Figure 2 , Figure 2 A schematic diagram of a flow chart of an anti-theft method according to an embodiment of the present application.

[0044] The anti-theft method is applied to an anti-theft server and includes the following steps:

[0045] S1: In response to receiving the door opening information sent by the smart door lock, obtaining the real-time location information of the smart phone.

[0046] In the embodiment of the present application, the smart phone is taken as an example for explanation, the user's residence is a modern residence equipped with an anti-theft server, and the smart door lock is installed at the door of the user's residence to prevent others from entering the residence without permission and to prevent the items in the user's residence from being stolen. When the smart door lock of the user's residence is opened by someone, the smart door lock can send door opening information to the anti-theft server so that the anti-theft server can obtain the real-time location information of the smart phone, thereby facilitating the judgment of whether the owner of the residence is opening the door.

[0047] In an optional embodiment, the method of responding to receiving the door opening information sent by the smart door lock may be:

[0048] Establish communication with the smart door lock in response to receiving door opening information sent when the smart door lock is opened; wherein the door opening information is an early warning information generated when the smart door lock is touched, or a warning information generated when the smart door lock is opened.

[0049] The early warning information is the door opening information sent before the smart door lock is opened. This early warning information is sent to the anti-theft server, so that the anti-theft server can generate an alarm signal in time and send it to the smartphone to notify the user to return to the residence in time, thereby preventing the smart door lock of the residence from being opened.

[0050] The warning message is the door opening information sent after the smart door lock is opened. This warning message is sent to the anti-theft server, so that the anti-theft server can generate an alarm signal in time and send it to the smart phone to inform the user that the door lock has been opened and notify the user to return to the residence in time, thereby preventing the theft of property in the home.

[0051] In an optional embodiment, the smart phone may include the mobile phone of the householder and several mobile phones of family members; the real-time location information includes first real-time location information corresponding to the mobile phone of the householder and second real-time location information corresponding to the mobile phones of the family members. In this embodiment, the real-time location information of several smart phones is used to compare the real-time location information with the door lock location information of the smart door lock, so as to accurately determine whether someone is out, so as to make an accurate alarm decision.

[0052] S2: Obtain the distance difference based on the real-time location information and the preset door lock location information of the smart door lock.

[0053] In this embodiment, if the real-time location information includes first real-time location information corresponding to the householder's mobile phone, and second real-time location information corresponding to the family member's mobile phone, the first distance difference can be calculated based on the first real-time location information and the preset door lock position information of the smart door lock; the second distance difference can be calculated based on the second real-time location information and the preset door lock position information of the smart door lock.

[0054] After obtaining a number of distance difference values, it is convenient to compare each distance difference value with a preset distance threshold value, so as to further determine whether to generate an alarm signal to trigger an alarm.

[0055] S3: If the distance difference exceeds a preset distance threshold, an alarm signal is generated to trigger the smart phone to sound an alarm.

[0056] The preset distance threshold may be a more appropriate distance threshold customized by the user according to the actual situation, or may be a more appropriate distance threshold set by the developer according to business experience.

[0057] The alarm signal may be a text message prompt, a voice prompt, or an alarm signal formed by other alarm methods, which is not limited in this embodiment.

[0058] In an optional embodiment, the alarm signal may be a text message prompt, the specific content of which may be "the door lock at home is about to be opened, please pay attention to whether it is opened illegally by others", or "the door lock at home has been opened, please pay attention to whether it is opened illegally by others".

[0059] In an optional embodiment, when both the first distance difference and the second distance difference exceed a preset distance threshold, it indicates that the owners of the residence are not at home. At this time, if the smart door lock is opened, it can be determined that it was opened illegally by someone else. Therefore, an alarm signal can be generated to trigger the smartphones of all owners of the residence to sound an alarm, thereby realizing an anti-theft alarm when all owners of the residence are out.

[0060] In an optional embodiment, when the first distance difference or the second distance difference does not exceed the preset distance threshold, it means that someone is at home or the owner of the residence is opening the door, and there is no need for high vigilance for anti-theft. The door opening information is ignored and no alarm signal is generated, thereby realizing a more intelligent anti-theft alarm.

[0061] In an optional embodiment, when the first distance difference or the second distance difference does not exceed the preset distance threshold, it means that someone is at home or the owner of the residence is opening the door. However, if someone is at home at this time and the smart door lock is still illegally opened, the anti-theft server will compare the values ​​of the first distance difference and the second distance difference, obtain the corresponding smartphone with the larger distance difference, that is, query the smartphone of the owner of the residence who has gone out, and send an inquiry message to the smartphone with the larger distance difference, prompting whether to call the smartphone with the smaller distance difference for anti-theft reminder, that is, prompting whether to call the smartphones of family members at home to notify them to take precautions.

[0062] In an optional embodiment, when the first distance difference or the second distance difference does not exceed a preset distance threshold, the position change value of the smartphone with a smaller distance difference within a preset time is obtained. If the position change value does not exceed the preset change value, it means that the owner of the smartphone with a smaller distance difference has been at home and has no record of going out. At this time, an alarm signal is generated to trigger the smartphone to sound an alarm, reminding each owner to take precautions.

[0063] In an optional embodiment, the smartphones are identified to distinguish between regular smartphones and special smartphones; regular smartphones are smartphones that owners often need to carry when going out, while special smartphones are smartphones used by elderly people at home, or smartphones used by people at home who do not need to go out often.

[0064] When the first distance difference or the second distance difference does not exceed the preset distance threshold, if the smart phone corresponding to the distance difference that does not exceed the preset distance threshold is a special mobile phone, an alarm signal is generated to trigger the regular mobile phone and the special mobile phone to send out an alarm; if the smart phone corresponding to the distance difference that does not exceed the preset distance threshold is a regular mobile phone, the door opening information is ignored and no alarm signal is generated. This makes it easy to determine whether an alarm is needed according to the usage of the smart phone, further improving the intelligence of the anti-theft method.

[0065] By applying the above-mentioned technical scheme of the embodiment of the present invention, the real-time location information of the smart phone is obtained by receiving the door opening information sent by the smart door lock. When the real-time location of the smart phone is far away from the location of the door lock, it means that the user is out. At this time, if the door opening information is received, an alarm signal is generated to trigger the smart phone to sound an alarm, so that the user can know the door lock opening status in time through the smart phone, which is convenient for the user to take preventive measures and improve the safety of the user's residence.

[0066] According to the second aspect of the present application, an anti-theft device is also provided, which can be used to execute the content of the anti-theft method of the corresponding embodiment of the present application and has corresponding functions and beneficial effects. For details not disclosed in the embodiment of the anti-theft device of the present application, please refer to the content of the anti-theft method of the present application.

[0067] See also Figure 4 , which is a structural block diagram of an anti-theft device provided by an embodiment of the present application, the anti-theft device 400 includes:

[0068] A response module 410 is used to obtain real-time location information of the smart phone in response to receiving the door opening information sent by the smart door lock;

[0069] A calculation module 420 is used to calculate and obtain a distance difference according to the real-time location information and the preset door lock location information of the smart door lock;

[0070] The alarm module 430 is used to generate an alarm signal to trigger the smart phone to sound an alarm if the distance difference exceeds a preset distance threshold.

[0071] It is worth noting that in the above-mentioned embodiment of the anti-theft device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0072] According to a third aspect of the present application, there is also provided an anti-theft system, such as Figure 1 As shown, the anti-theft system includes a smart door lock 100, an anti-theft server 200 and several smart phones 300; the anti-theft server 200 establishes communication with the smart door lock 100, and the smart door lock 100 sends door opening information to the anti-theft server 200; and several smart phones 300 establish communication with the anti-theft server 200.

[0073] The anti-theft server 200 receives the door opening information, and executes the anti-theft method as described in any one of the above embodiments, generates an alarm signal and sends it to the smart phone 300, so as to realize the anti-theft alarm through the smart phone 300.

[0074] like Figure 5 and Figure 6 As shown, Figure 5 A structural block diagram of a smart door lock provided by an embodiment of the present application; Figure 6 A structural block diagram of an anti-theft server provided in one embodiment of the present application.

[0075] Among them, the smart door lock 100 includes a processor 101, a memory 102, a communication module 103 and a door opening detection module 104; the processor 101 establishes communication with the anti-theft server 200 through the communication module 103; when the door opening detection module detects a door opening signal, the processor 101 generates door opening information and sends it to the anti-theft server 200.

[0076] The anti-theft server 200 includes a processor 210, a memory 240 and a communication module 260 electrically connected to the processor 210; the memory 240 stores an anti-theft application, and the processor 210 implements the anti-theft method of the present application when executing the anti-theft application stored in the memory 240. In this embodiment, the anti-theft server 200 can be a smart phone.

[0077] The smart phone 300 is a smart phone used by the user and his family, and a plurality of smart phones 300 establish communication with the anti-theft server 200 to achieve the transmission of relevant signals. The smart phone 300 is installed with a GPS positioning module, a Beidou positioning module, or other positioning modules, which are not limited here, as long as the positioning of the smart phone 300 can be achieved, so as to facilitate the acquisition of the real-time location information of the smart phone 300.

[0078] By applying the above-mentioned technical scheme of the embodiment of the present invention, the real-time location information of the smart phone is obtained by receiving the door opening information sent by the smart door lock. When the real-time location of the smart phone is far away from the location of the door lock, it means that the user is out. At this time, if the door opening information is received, an alarm signal is generated to trigger the smart phone to sound an alarm, so that the user can know the door lock opening status in time through the smart phone, which is convenient for the user to take preventive measures and improve the safety of the user's residence.

[0079] According to the fourth aspect of the present application, a storage medium containing computer executable instructions is also provided, and the computer executable instructions are used to perform the relevant operations in the anti-theft method provided in any embodiment of the present application when executed by a computer processor, and have corresponding functions and beneficial effects. Among them, computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information can be a computer-readable instruction, a data structure, a module of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape magnetic disk storage or other magnetic storage device or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. According to the definition in this article, computer-readable media does not include temporary computer-readable media (transitory media), such as modulated data signals and carriers.

[0080] According to a fifth aspect of the present application, an anti-theft server is also provided. The anti-theft server may be a computer, a smart phone, a tablet computer, etc. In an embodiment of the present application, the anti-theft server is a smart phone.

[0081] like Figure 6 As shown, the anti-theft server 200 includes at least one processor 210, at least one network interface 220, a user interface 230, a memory 240, at least one communication bus 250, and a communication module 260. The communication bus 250 is used to realize the connection and communication between these components. The communication module 260 is used to communicate with a remote intelligent device.

[0082] The user interface 230 may include an interface for connecting to a display screen, and the optional user interface 230 may also include a standard wired interface or a wireless interface.

[0083] The network interface 220 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0084] The processor 210 may include one or more processing cores. The processor 210 uses various interfaces and lines to connect various parts of the entire anti-theft server 200, and executes various functions and processes data of the anti-theft server 200 by running or executing instructions, programs, code sets or instruction sets stored in the processor 210, and calling data stored in the memory 240. Optionally, the processor 210 can be implemented in at least one hardware form of digital signal processing (DSP), field programmable gate array (FPGA), and programmable logic arrays (PLA). The processor 210 can integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 210, but may be implemented separately through a chip.

[0085] The memory 240 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 240 includes a non-transitory computer-readable storage medium. The memory 240 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 240 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned method embodiments, etc.; the data storage area may store data involved in the above-mentioned method embodiments, etc. The memory 240 may optionally be at least one storage device located away from the aforementioned processor 210. As Figure 2 As shown, the memory 240 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an operating application of the anti-theft server 200 .

[0086] exist Figure 2 In the anti-theft server 200 shown, the user interface 230 is mainly used to provide an input interface for the user and obtain data input by the user; and the processor 210 can be used to call the operation application of the smart device stored in the memory 240 and execute the relevant operations in the anti-theft server method in the above embodiment.

[0087] The above-mentioned anti-theft server 200 can be used to execute the content of the anti-theft method corresponding to the embodiment of the present application, and has corresponding functions and beneficial effects.

[0088] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0089] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A theft prevention method, characterized in that: The following steps are involved: In response to receiving the door opening information sent by the smart door lock, obtaining the real-time location information of the smart phone; Obtaining a distance difference value by calculating the real-time location information and the preset door lock location information of the smart door lock; If the distance difference exceeds a preset distance threshold, an alarm signal is generated to trigger the smartphone to sound an alarm; The smart phone includes a householder's mobile phone and several family members' mobile phones; the real-time location information includes first real-time location information corresponding to the householder's mobile phone and second real-time location information corresponding to the family members' mobile phones; The calculating and obtaining the distance difference according to the real-time position information and the preset door lock position information of the smart door lock includes: Obtaining a first distance difference value by calculation according to the first real-time location information and the preset door lock location information of the smart door lock; Obtaining a second distance difference value by calculation according to the second real-time location information and the preset door lock location information of the smart door lock; If the distance difference exceeds the preset distance threshold, an alarm signal is generated to trigger the smart phone to send out an alarm, the method is: When both the first distance difference and the second distance difference exceed a preset distance threshold, an alarm signal is generated to trigger the smart phone to sound an alarm; When the first distance difference or the second distance difference does not exceed the preset distance threshold, the door opening information is ignored and no alarm signal is generated; When the first distance difference or the second distance difference does not exceed the preset distance threshold, the values ​​of the first distance difference and the second distance difference are compared to obtain the corresponding smartphone with the larger distance difference, and an inquiry message is sent to the smartphone with the larger distance difference to prompt whether it is necessary to call the smartphone with the smaller distance difference for anti-theft reminder.

2. The anti-theft method according to claim 1, characterized in that: The method for responding to receiving the door opening information sent by the smart door lock is: Establish communication with the smart door lock in response to receiving door opening information sent when the smart door lock is opened; wherein the door opening information is an early warning information generated when the smart door lock is touched, or a warning information generated when the smart door lock is opened.

3. The anti-theft method according to claim 1, characterized in that: When the first distance difference or the second distance difference does not exceed the preset distance threshold, the position change value of the smartphone with the smaller distance difference within the preset time is obtained, and if the position change value does not exceed the preset change value, an alarm signal is generated to trigger the smartphone to issue an alarm.

4. The anti-theft method according to claim 1, characterized in that: Identify the smart phones to distinguish between regular phones and special phones; When the first distance difference or the second distance difference does not exceed the preset distance threshold, if the smart phone corresponding to the distance difference that does not exceed the preset distance threshold is a special mobile phone, an alarm signal is generated to trigger the regular mobile phone and the special mobile phone to send out an alarm; If the smart phone corresponding to the distance difference that does not exceed the preset distance threshold is a regular mobile phone, the door opening information is ignored and no alarm signal is generated.

5. An anti-theft device, executing the anti-theft method according to any one of claims 1 to 4, characterized in that: include: A response module, used for obtaining real-time location information of the smart phone in response to receiving door opening information sent by the smart door lock; A calculation module, used for calculating and obtaining a distance difference according to the real-time position information and the preset door lock position information of the smart door lock; The alarm module is used to generate an alarm signal to trigger the smart phone to sound an alarm if the distance difference exceeds a preset distance threshold.

6. A theft prevention system, characterized in that: It includes a smart door lock and an anti-theft server; the anti-theft server and the smart door lock establish communication, and the smart door lock sends door opening information to the anti-theft server; The anti-theft server receives the door opening information and executes the anti-theft method according to any one of claims 1 to 4.

7. The anti-theft system according to claim 6, characterized in that: The anti-theft server is a smart phone.

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