Anti-lost label, searching method and device thereof, and electronic device

Abstract

The present disclosure provides a kind of anti-lost label and its search method and device, electronic equipment, wherein the anti-lost label includes: first antenna, for receiving the energy of WiFi signal;Second antenna, for receiving broadcast signal;Rectifier, connect with first antenna, for converting the energy of WiFi signal into direct current;Conversion circuit, connect with rectifier, for supplying direct current to label circuit or battery module;Label circuit, connect with conversion circuit and second antenna, for receiving the Bluetooth broadcast signal sent by terminal device through second antenna, determine the position information of anti-lost label relative to terminal device based on AOD / AOA protocol, and emit the broadcast signal containing the position information through second antenna;Battery module, connect with conversion circuit, for storing direct current, and driving label circuit through conversion circuit.The function of anti-lost label can be realized in the battery no electricity state by the present disclosure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and in particular to a loss-prevention tag, a searching method and device thereof, and an electronic device. BACKGROUND

[0002] The existing Bluetooth tracking device can be used to track and search important articles, and is powered by a battery and communicates through Bluetooth connection. Since it needs to rely on battery power, the battery needs to be replaced regularly to ensure normal use by the user. Replacing the battery is troublesome and increases the cost of consumption, which seriously affects the user experience.

[0003] At present, there is no effective solution to the problem of battery replacement of the Bluetooth tracking device in the related art. SUMMARY

[0004] The purpose of the present disclosure is to provide a loss-prevention tag, a searching method and device thereof, and an electronic device to at least solve the problem of battery replacement of the Bluetooth tracking device in the related art, aiming at the deficiencies in the prior art.

[0005] According to an aspect of the present disclosure, a loss-prevention tag is provided, comprising:

[0006] a first antenna for receiving energy of a WiFi signal;

[0007] a second antenna for transmitting and receiving a broadcast signal;

[0008] a rectifier connected to the first antenna, for converting the energy of the WiFi signal into direct current;

[0009] a conversion circuit connected to the rectifier, for supplying the direct current to a tag circuit or a battery module;

[0010] the tag circuit is connected to the conversion circuit and the second antenna, for receiving a Bluetooth broadcast signal emitted by a terminal device through the second antenna, determining position information of the loss-prevention tag relative to the terminal device based on an AOD / AOA protocol, and emitting a broadcast signal containing the position information through the second antenna;

[0011] the battery module is connected to the conversion circuit, for storing the direct current and driving the tag circuit through the conversion circuit.

[0012] According to another aspect of the present disclosure, a searching method for a loss-prevention tag is provided, comprising:

[0013] detecting whether a WiFi broadcast signal emitted by the loss-prevention tag is received;

[0014] outputting a reminder message if the WiFi broadcast signal transmitted by the anti-lost tag is not received, wherein the reminder message is used to remind a user to return to an initial position, the initial position being a position at which the WiFi broadcast signal transmitted by the anti-lost tag was last received;

[0015] detecting whether the WiFi broadcast signal transmitted by the anti-lost tag is received after the initial position is reached;

[0016] if the WiFi broadcast signal transmitted by the anti-lost tag is received, starting a Bluetooth broadcast and detecting whether a Bluetooth broadcast signal transmitted by the anti-lost tag is received, wherein the Bluetooth broadcast signal carries a position message of the anti-lost tag;

[0017] if the Bluetooth broadcast signal transmitted by the anti-lost tag is received, searching for the anti-lost tag according to the position message of the anti-lost tag.

[0018] According to another aspect of the present disclosure, there is provided an anti-lost tag searching device, comprising:

[0019] a first detection unit configured to detect whether a WiFi broadcast signal transmitted by the anti-lost tag is received;

[0020] a reminding unit configured to output a reminder message if the WiFi broadcast signal transmitted by the anti-lost tag is not received, wherein the reminder message is used to remind a user to return to an initial position, the initial position being a position at which the WiFi broadcast signal transmitted by the anti-lost tag was last received;

[0021] a second detection unit configured to detect whether the WiFi broadcast signal transmitted by the anti-lost tag is received after the initial position is reached;

[0022] a third detection unit configured to, if the WiFi broadcast signal transmitted by the anti-lost tag is received, start a Bluetooth broadcast and detect whether a Bluetooth broadcast signal transmitted by the anti-lost tag is received, wherein the Bluetooth broadcast signal carries a position message of the anti-lost tag;

[0023] a searching unit configured to, if the Bluetooth broadcast signal transmitted by the anti-lost tag is received, search for the anti-lost tag according to the position message of the anti-lost tag.

[0024] According to another aspect of the present disclosure, there is provided an electronic device, comprising:

[0025] a processor; and

[0026] a memory storing a program,

[0027] The program includes instructions which, when executed by the processor, cause the processor to perform the anti-lost tag searching method in the present disclosure.

[0028] According to another aspect of the present disclosure, a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the anti-lost tag searching method in the present disclosure is provided.

[0029] One or more technical solutions provided in the embodiments of the present disclosure are that the anti-lost tag receives energy of a WiFi signal through a first antenna; converts the energy of the WiFi signal into direct current through a rectifier; supplies the direct current to a tag circuit or a battery module through a conversion circuit; receives a Bluetooth broadcast signal sent by a terminal device through the tag circuit, determines position information of the anti-lost tag relative to the terminal device based on an AOD / AOA protocol; stores the direct current through a battery module and drives the tag circuit through the conversion circuit; and transmits and receives a broadcast signal through a second antenna. The anti-lost tag in the embodiments of the present disclosure is charged by using a WiFi signal and can realize the function of the anti-lost tag in a battery-free state based on passive environmental backscatter communication, so as to solve the problem of battery replacement of a Bluetooth tracking device in related technologies and achieve the technical effect of realizing the function of the anti-lost tag in a battery-free (lithium battery-free) state. BRIEF DESCRIPTION OF DRAWINGS

[0030] In the following description of exemplary embodiments in conjunction with the accompanying drawings, more details, features and advantages of the present disclosure are disclosed, in which:

[0031] Figure 1 A schematic diagram of an anti-lost tag structure according to an exemplary embodiment of the present disclosure is shown;

[0032] Figure 2 A schematic diagram of a position relationship between an anti-lost tag and a mobile phone WiFi signal coverage range according to an exemplary embodiment of the present disclosure is shown;

[0033] Figure 3 A flowchart of an anti-lost tag working process in a first working mode according to an exemplary embodiment of the present disclosure is shown;

[0034] Figure 4 A flowchart of an anti-lost tag working process in a second working mode according to an exemplary embodiment of the present disclosure is shown;

[0035] Figure 5 A flowchart of an anti-lost tag working process when a user searches for an anti-lost tag according to an exemplary embodiment of the present disclosure is shown;

[0036] Figure 6 A flowchart of an anti-lost tag searching method according to an exemplary embodiment of the present disclosure is shown;

[0037] Figure 7 A flowchart illustrating the user's process of finding an anti-loss tag according to an exemplary embodiment of the present disclosure is shown;

[0038] Figure 8 A schematic block diagram of a device for finding anti-loss tags according to an exemplary embodiment of the present disclosure is shown;

[0039] Figure 9 A structural block diagram of an exemplary electronic device that can be used to implement embodiments of the present disclosure is shown. Detailed Implementation

[0040] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0041] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0042] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc., used in this disclosure are only used to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0043] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0044] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0045] The present disclosure is described below with reference to the accompanying drawings.

[0046] The present disclosure exemplary embodiments provide an anti-lost tag.

[0047] Figure 1 A schematic diagram of an anti-lost tag structure according to the present disclosure exemplary embodiments is shown as Figure 1 The anti-lost tag can include:

[0048] A first antenna 101 for receiving energy of WiFi signals;

[0049] A rectifier 102 connected with the first antenna 101 for converting the energy of WiFi signals into direct current;

[0050] A conversion circuit 103 connected with the rectifier 102 for supplying the direct current to a tag circuit 104 or a battery module 105;

[0051] The tag circuit 104 connected with the conversion circuit 103 for receiving a Bluetooth broadcast signal sent by a terminal device, determining position information of the anti-lost tag relative to the terminal device based on AOD / AOA protocol, and emitting a broadcast signal containing the position information through a second antenna;

[0052] The battery module 105 connected with the conversion circuit 103 for storing the direct current and driving the tag circuit 104 through the conversion circuit 103;

[0053] The second antenna 106 connected with the tag circuit 104 for receiving and emitting broadcast signals.

[0054] Optionally, the first antenna 101 is composed of molybdenum disulfide (MoS2) material. The rectifier 102 is composed of a rectifier diode and a radio frequency signal converter for energy conversion, converting the alternating current signal received by the first antenna 101 into direct current + WiFi Bluetooth communication signal. The conversion circuit 103 is a power supply conversion circuit, receiving the direct current converted by the rectifier 102, supplying the tag circuit 104 or storing to the battery module 105, such as lithium battery, according to real-time power consumption of the system. The tag circuit 104 is composed of a low-power MCU, a WiFi module and a Bluetooth module, realizing anti-lost related functions. The second antenna 106 is a planar inverted-F antenna (PIFA) for communication data receiving and emitting.

[0055] In some embodiments, the anti-lost tag has two working modes, i.e. a first working mode and a second working mode, wherein:

[0056] When the anti-lost tag is in the first working mode and the anti-lost tag is located in the coverage range of the WiFi signal transmitted by the terminal device, the first antenna 101 is used to receive the energy of the WiFi signal, the rectifier 102 is used to convert the energy of the WiFi signal into direct current, and the conversion circuit 103 is used to drive the tag circuit 104 to work by using the direct current.

[0057] When the anti-lost tag is in the first working mode and the anti-lost tag is not located in the coverage range of the WiFi signal transmitted by the terminal device, the terminal device displays a prompt message.

[0058] When the anti-lost tag is in the first working mode for a target time period, the battery module 105 is charged, the anti-lost tag enters the second working mode, and the battery module 105 drives the tag circuit 104 to work by using the conversion circuit 103.

[0059] Based on passive environment backscattering communication, when the anti-lost tag is in the coverage range of the WiFi signal of the mobile phone (for example, state 1 shown in FIG. 2), the working process of the anti-lost tag includes the following steps. Figure 2 Figure 3 The working process of the anti-lost tag includes the following steps.

[0060] Step S301, the first antenna 101 of the anti-lost tag receives a signal.

[0061] Step S302, the rectifier 102 rectifies and converts the signal into electric energy.

[0062] Step S303, the conversion circuit 103 drives the tag circuit 104 to work, and the tag circuit 104 works in WiFi mode.

[0063] Step S304, the second antenna 106 transmits a WiFi broadcast signal.

[0064] The mobile phone confirms whether the anti-lost tag is near the mobile phone according to the WiFi broadcast signal of the anti-lost tag. When the anti-lost tag is not in the coverage range of the WiFi signal of the mobile phone (for example, state 2 shown in FIG. 3), the mobile phone sends a prompt “xxx is not near you / you have lost xxx”. Figure 2

[0065] When the anti-lost tag is in the first working mode for a period of time, the battery module 105 will be gradually charged, and the surplus electric energy can drive the Bluetooth in the tag circuit 104 to work and enter standby mode. The specific process includes the following steps. Figure 4

[0066] Step S401, the first antenna 101 of the anti-lost tag receives a signal.

[0067] ​​​Step S402, the rectifier 102 rectifies the signal to convert into electric energy;

[0068] Step S403, the conversion circuit 103 drives the tag circuit 104 to work, and the remaining electric energy is stored in the battery module 105.

[0069] Step S404, the tag circuit 104 works in WiFi, transmits a broadcast signal through the second antenna 106, and the tag circuit 104 starts to work in Bluetooth, and enters standby and waiting.

[0070] In some embodiments, when the anti-lost tag receives the Bluetooth broadcast signal transmitted by the terminal device, the tag circuit 104 can confirm the position information relative to the terminal device based on the Bluetooth AOD / AOA protocol, and transmit a broadcast signal including the position information through the second antenna 106.

[0071] As shown in Figure 5 When the user starts to find the position of the anti-lost tag, the mobile phone transmits a Bluetooth broadcast, and after entering the signal range, the working process of the tag circuit includes the following steps:

[0072] Step S501, the tag circuit 104 receives the Bluetooth broadcast, and the Bluetooth starts to work.

[0073] Step S502, the tag circuit 104 judges the direction with the mobile phone based on the Bluetooth AOD / AOA protocol.

[0074] Step S503, a Bluetooth broadcast signal containing position information is transmitted through the second antenna 106.

[0075] The anti-lost tag of the embodiment of the present disclosure charges by using a WiFi signal, and realizes the function of the anti-lost tag in a battery-free (lithium battery-free) state based on passive environment backscattering communication. When the anti-lost tag is in a WiFi signal coverage, the battery is charged to a certain amount of electric quantity, and then the Bluetooth can be started to realize accurate directional positioning and finding.

[0076] The present disclosure exemplary embodiment provides a finding method of an anti-lost tag. Figure 6 A flow chart of the finding method of the anti-lost tag according to the exemplary embodiment of the present disclosure is shown, as shown in Figure 6 The method includes the following steps:

[0077] Step S601, whether a WiFi broadcast signal transmitted by the anti-lost tag is received is detected.

[0078] Step S602, if the WiFi broadcast signal transmitted by the anti-lost tag is not received, a prompt message is output, wherein the prompt message is used to remind the user to return to an initial position, and the initial position is a position at which the WiFi broadcast signal transmitted by the anti-lost tag is last received.

[0079] Step S603, detecting whether the WiFi broadcast signal emitted by the anti-lost tag is received after reaching the initial position;

[0080] Step S604, if the WiFi broadcast signal emitted by the anti-lost tag is received, starting the Bluetooth broadcast, and detecting whether the Bluetooth broadcast signal emitted by the anti-lost tag is received, wherein the Bluetooth broadcast signal carries the position message of the anti-lost tag;

[0081] Step S605, if the Bluetooth broadcast signal emitted by the anti-lost tag is received, searching for the anti-lost tag according to the position message of the anti-lost tag.

[0082] In some embodiments, when the user starts searching for the anti-lost tag, as shown in FIG. 6, the specific process includes the following steps: Figure 7

[0083] Step S701, starting the WiFi of the mobile phone;

[0084] Step S702, emitting the WiFi signal by the mobile phone;

[0085] Step S703, judging whether the anti-lost tag is configured; if yes, executing step S704; if no, executing step S712;

[0086] Step S704, detecting whether the WiFi broadcast signal emitted by the anti-lost tag is received; if yes, executing step S711; if no, executing step S705;

[0087] Step S705, issuing a prompt that the anti-lost tag is not nearby;

[0088] Step S706, prompting the user to return to the previous position by the mobile phone, and the mobile phone continues to scan;

[0089] Step S707, detecting whether the WiFi broadcast signal emitted by the anti-lost tag is received; if yes, executing step S708; if no, executing step S706;

[0090] Step S708, starting the Bluetooth broadcast of the mobile phone, and starting scanning;

[0091] Step S709, detecting whether the Bluetooth broadcast signal emitted by the anti-lost tag is received; if yes, executing step S710; if no, executing step S708;

[0092] Step S710, instructing the user to find the anti-lost tag based on the received position message.

[0093] Step S711, determining that the anti-lost tag is nearby the mobile phone, and then executing step S702. ​

[0094] Step S712, configuring the anti-lost tag.

[0095] The embodiment of the present application utilizes WiFi signal charging, and is based on passive environment backscattering communication. The anti-lost tag can realize the function of anti-lost tag in the state of no battery (lithium battery without electricity). When the anti-lost tag is in the coverage of WiFi signal, the battery can be charged to a certain amount of electricity, and then the Bluetooth can be started to realize the precise directional positioning and searching.

[0096] It should be noted that the steps shown in the above flow or the flowchart of the accompanying drawings can be executed in a computer system such as a group of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from here.

[0097] The exemplary embodiments of the present disclosure also provide a searching device for the anti-lost tag, which is used to realize the above-mentioned embodiments and preferred embodiments, and will not be described again. As used below, the terms "module", "unit", "sub-unit" and the like can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiments is preferably realized in software, the realization of hardware, or a combination of software and hardware is also possible and conceived.

[0098] Figure 8 A schematic block diagram of a searching device for the anti-lost tag according to the exemplary embodiments of the present disclosure is shown, as shown in Figure 8 The device comprises:

[0099] A first detection unit 81 is configured to detect whether the WiFi broadcast signal emitted by the anti-lost tag is received;

[0100] A reminding unit 82 is configured to output a reminding message if the WiFi broadcast signal emitted by the anti-lost tag is not received, wherein the reminding message is used to remind the user to return to the initial position, and the initial position is the position where the WiFi broadcast signal emitted by the anti-lost tag is last received;

[0101] A second detection unit 83 is configured to detect whether the WiFi broadcast signal emitted by the anti-lost tag is received after reaching the initial position;

[0102] A third detection unit 84 is configured to start the Bluetooth broadcast if the WiFi broadcast signal emitted by the anti-lost tag is received, and detect whether the Bluetooth broadcast signal emitted by the anti-lost tag is received, wherein the Bluetooth broadcast signal carries the position message of the anti-lost tag;

[0103] The searching unit 85 is configured to search the anti-lost tag according to the position message of the anti-lost tag if the Bluetooth broadcast signal transmitted by the anti-lost tag is received.

[0104] In some embodiments, the apparatus further comprises:

[0105] The judging unit is configured to judge whether the anti-lost tag is configured or not;

[0106] The configuring unit is configured to configure the anti-lost tag if the anti-lost tag is not configured.

[0107] The executing unit is configured to execute the step of detecting whether the WiFi broadcast signal transmitted by the anti-lost tag is received if the anti-lost tag is configured.

[0108] It should be noted that each of the above modules can be a functional module or a program module, and can be implemented by software or hardware. For the module implemented by hardware, each of the above modules can be located in the same processor; or each of the above modules can also be located in different processors in any combination.

[0109] The exemplary embodiments of the present disclosure further provide an electronic device, comprising: at least one processor; and a memory connected with the at least one processor in communication. The memory stores a computer program capable of being executed by the at least one processor, and the computer program, when executed by the at least one processor, is configured to cause the electronic device to perform the method according to the embodiments of the present disclosure.

[0110] The exemplary embodiments of the present disclosure further provide a non-transitory computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor of a computer, is configured to cause the computer to perform the method according to the embodiments of the present disclosure.

[0111] The exemplary embodiments of the present disclosure further provide a computer program product comprising a computer program, wherein the computer program, when executed by a processor of a computer, is configured to cause the computer to perform the method according to the embodiments of the present disclosure.

[0112] Reference Figure 9An architectural block diagram of an electronic device 900 that can be a server or a client of the present disclosure, which is an example of a hardware device that can be applied to aspects of the present disclosure, will now be described. The electronic device is intended to represent a wide variety of digital electronic computer devices, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent a wide variety of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components, their connections, and their functions, as described herein, are meant to be examples only, and are not intended to limit implementations of the present disclosure described and / or claimed herein.

[0113] As shown in FIG. 9, Figure 9 The electronic device 900 includes a computing unit 901 that can perform various appropriate actions and processes in accordance with a computer program stored in a read-only memory (ROM) 902 or a computer program loaded into a random access memory (RAM) 903 from a storage unit 908. Various programs and data required for the operation of the device 900 can also be stored in the RAM 903. The computing unit 901, the ROM 902, and the RAM 903 are connected to each other through a bus 904. An input / output (I / O) interface 905 is also connected to the bus 904.

[0114] Various components in the electronic device 900 are connected to the I / O interface 905, including an input unit 906, an output unit 907, the storage unit 908, and a communication unit 909. The input unit 906 can be any type of device that can input information to the electronic device 900, and can receive inputted digital or character information, and generate key signal inputs related to user settings and / or function controls of the electronic device. The output unit 907 can be any type of device that can present information, and can include, but is not limited to, a display, a speaker, a video / audio output terminal, a vibrator, and / or a printer. The storage unit 908 can include, but is not limited to, a magnetic disk, an optical disk. The communication unit 909 allows the electronic device 900 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks, and can include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication transceiver, and / or a chipset, such as a Bluetooth device, a WiFi device, a WiMax device, a cellular communication device, and / or the like.

[0115] The computing unit 901 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the computing unit 901 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 901 performs various methods and processes described above. For example, in some embodiments, the anti-lost tag finding method can be implemented as a computer software program, which is tangibly embodied in a machine-readable medium, such as the storage unit 908. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 900 via the ROM 902 and / or the communication unit 909. In some embodiments, the computing unit 901 can be configured to perform the anti-lost tag finding method by any other suitable means, such as by means of firmware.

[0116] Program code for carrying out methods of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the program code, when executed by the processor or controller, produces a function / operation specified in the flowchart and / or block diagram. The program code can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package, and partially on a remote machine or entirely on a remote machine or server.

[0117] In the context of the present disclosure, a machine-readable medium can be a tangible medium that can contain or store program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable storage media can include, without limitation, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include, but are not limited to, an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0118] As used in this disclosure, the terms "machine-readable medium" and "computer- readable medium" refer to any computer program product, apparatus and / or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0119] To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0120] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0121] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.

Claims

1. An anti-lost label, characterized by, include: The first antenna is used to receive the energy of WiFi signals; The second antenna is used to transmit and receive broadcast signals; A rectifier, connected to the first antenna, is used to convert the energy of the WiFi signal into direct current. A conversion circuit, connected to the rectifier, is used to supply the DC power to the tag circuit or the battery module; The tag circuit is connected to the conversion circuit and the second antenna, and is used to receive Bluetooth broadcast signals sent by the terminal device through the second antenna, determine the position information of the anti-loss tag relative to the terminal device based on the AOD / AOA protocol, and transmit a broadcast signal containing the position information through the second antenna; The battery module is connected to the conversion circuit, used to store the DC power, and to drive the tag circuit through the conversion circuit; The anti-loss tag has a first working mode and a second working mode. When the anti-loss tag is in the first working mode and is within the coverage area of ​​the WiFi signal emitted by the terminal device, the first antenna is used to receive the energy of the WiFi signal, the rectifier is used to convert the energy of the WiFi signal into DC power, and the conversion circuit is used to drive the tag circuit to work with the DC power. The tag circuit operates in WiFi mode and transmits a WiFi broadcast signal through the second antenna, so that the terminal device can confirm whether the anti-loss tag is near the terminal device based on the WiFi broadcast signal of the anti-loss tag. When the anti-loss tag is in the first working mode and is not within the coverage area of ​​the WiFi signal emitted by the terminal device, the terminal device will display a reminder message to remind the user to return to the initial position, which is the position where the WiFi broadcast signal emitted by the anti-loss tag was last received. After the anti-loss tag has been in the first working mode for a target time period, the battery module is charged, the anti-loss tag enters the second working mode, the battery module drives the tag circuit to work through the conversion circuit, the tag circuit starts Bluetooth and enters standby waiting, when the anti-loss tag receives a Bluetooth broadcast signal transmitted by the terminal device, the tag circuit determines the position information of the anti-loss tag relative to the terminal device based on the AOD / AOA protocol, and transmits a Bluetooth broadcast signal containing the position information through the second antenna.

2. The anti-loss tag of claim 1, wherein, The tag circuit includes: an MCU, a WiFi module, and a Bluetooth module.

3. The anti-loss tag of claim 1, wherein, The rectifier includes: a rectifier diode and an radio frequency signal converter.

4. The anti-loss tag of claim 1, wherein, The first antenna is made of molybdenum disulfide.

5. A method of finding a loss-preventing tag according to any one of claims 1 to 4, characterized in that, include: Detect whether the WiFi broadcast signal emitted by the anti-loss tag is received; If the WiFi broadcast signal emitted by the anti-loss tag is not received, a reminder message is output, wherein the reminder message is used to remind the user to return to the initial position, which is the position where the WiFi broadcast signal emitted by the anti-loss tag was last received; detecting whether the WiFi broadcast signal emitted by the anti-lost tag is received after reaching the initial position; if the WiFi broadcast signal emitted by the anti-lost tag is received, starting a Bluetooth broadcast, and detecting whether the Bluetooth broadcast signal emitted by the anti-lost tag is received, wherein the Bluetooth broadcast signal carries a position message of the anti-lost tag; if the Bluetooth broadcast signal emitted by the anti-lost tag is received, searching for the anti-lost tag according to the position message of the anti-lost tag.

6. The method of claim 5, wherein, Further comprising: judging whether the anti-lost tag is configured; if the anti-lost tag is not configured, configuring the anti-lost tag; if the anti-lost tag is configured, executing the step of detecting whether the WiFi broadcast signal emitted by the anti-lost tag is received.

7. An electronic device, comprising: Comprise: a processor; and a memory for storing programs, wherein the programs comprise instructions which, when executed by the processor, cause the processor to perform the searching method for the anti-lost tag according to claim 5 or 6.

8. A non-transitory computer-readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to cause the computer to perform the searching method for the anti-lost tag according to claim 5 or 6.

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