WO2023035319A1

WO2023035319A1 - Device positioning method and apparatus, and device, wallet and storage medium

Info

Publication number: WO2023035319A1
Application number: PCT/CN2021/119439
Authority: WO
Inventors: 李川川; 姜波
Original assignee: 深圳市雪球科技有限公司
Priority date: 2021-09-09
Filing date: 2021-09-18
Publication date: 2023-03-16
Also published as: CN113766429A

Abstract

Provided in the present application are a device positioning method and apparatus, and a device, a wallet and a storage medium. The method comprises: sending a query request to a server, wherein the query request carries identification information of a target device to be subjected to a query; receiving returned information of the server based on the query request, wherein the returned information carries broadcast information, which is received by an auxiliary terminal and from the target device, and auxiliary location information when the auxiliary terminal receives the broadcast information; and determining target location information of the target device according to the broadcast information and the auxiliary location information. By means of the present application, when the target device is not in the vicinity of a terminal carried by a user, the target device may also be remotely positioned, so as to find the lost target device in a timely manner, thereby reducing property losses of the user.

Description

Device location method, device, device, wallet and storage medium

Cross References to Related Applications

This application claims the priority of the Chinese Patent Application No. 2021110535845 entitled "Device Locating Method, Device, Device, Wallet, and Storage Medium" filed with the China Patent Office on September 09, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of information processing, and in particular, relates to a device positioning method, device, device, wallet and storage medium.

Background technique

Electronic wallets are commonly used payment tools in e-commerce shopping activities. Electronic money, such as electronic cash, electronic change, electronic credit card, etc., is stored in the electronic wallet. There are two concepts of electronic wallets: one is based on software, which is mainly used for online consumption and account management. Such software is usually connected with bank accounts or bank card accounts. The second is the smart stored-value card. The cardholder deposits a certain amount of money in the card in advance, and the transaction amount is directly deducted from the stored-value account during the transaction.

With the development of information technology, smart stored-value cards are becoming more and more popular, bus cards, access control cards, bank cards, etc. are well known and used by ordinary users, and software-based electronic wallet devices are gradually entering people's lives. However, in actual scenarios, both stored-value cards and electronic wallet devices are very easy to lose, which brings property losses to people's lives. Therefore, how to automatically locate and find lost electronic wallets has become an urgent technical problem to be solved.

Contents of the invention

The purpose of the embodiment of the present application is to provide a device location method, device, device, wallet and storage medium, so that when the target device is not near the terminal carried by the user, the target device can be remotely located, and the lost device can be found in time. Target equipment, reducing user property losses.

The first aspect of the embodiment of the present application provides a device positioning method, including: sending a query request to a server, the query request carrying the identification information of the target device to be queried; receiving the server's return information based on the query request , the returned information carries the broadcast information received by the auxiliary terminal from the target device and the auxiliary location information of the auxiliary terminal when receiving the broadcast information; according to the broadcast information and the auxiliary location information , to determine the target location information of the target device.

In an embodiment, the number of the auxiliary terminals is multiple, and each of the auxiliary terminals corresponds to one of the broadcast information and one of the auxiliary location information; according to the broadcast information and the auxiliary location information , determining the target location information of the target device, including: calculating the relationship between each of the auxiliary terminals and the The relative distance between the target devices; according to the auxiliary position information corresponding to each of the auxiliary terminals and the relative distance, calculate a plurality of position estimation values of the target device; calculate the average of the plurality of position estimation values value, using the average value as the target location information of the target device.

In an embodiment, the calculation of the distance between each of the auxiliary terminals and the target device is based on the broadcast information received by each of the auxiliary terminals and the auxiliary location information of each of the auxiliary terminals. The relative distance includes: for each of the auxiliary terminals, calculating the relative distance between the auxiliary terminal and the target device according to the signal strength of the broadcast information and the auxiliary location information.

In an embodiment, the calculating multiple estimated position values of the target device according to the auxiliary position information and the relative distance corresponding to each of the auxiliary terminals includes: calculating the auxiliary position information every two pairs A center point position of the information, using the center point position as the estimated position value of the target device.

In an embodiment, the calculating the average value of the plurality of position estimation values and using the average value as the target position information of the target device includes: calculating the average position of all the center point positions, The average position is used as the target position information of the target device.

In one embodiment, the number of the auxiliary terminal is one; the determining the location information of the target device according to the broadcast information and the location information of the auxiliary terminal includes: The auxiliary location information is used as the target location information of the target device.

In one embodiment, the returned information is ciphertext encrypted by the public key of the target device; before determining the target location information of the target device according to the broadcast information and the auxiliary location information , further comprising: decrypting the returned information according to a preset private key to obtain the decrypted broadcast information and the auxiliary location information, where the private key and the public key are a pair of key pairs.

The second aspect of the embodiment of the present application provides a device locating device, including: a sending module, configured to send a query request to the server, the query request carrying identification information of the target device to be queried; a receiving module, configured to receive the The server returns information based on the query request, the returned information carries the broadcast information received by the auxiliary terminal from the target device and the auxiliary location information of the auxiliary terminal when receiving the broadcast information; determine A module, configured to determine target location information of the target device according to the broadcast information and the auxiliary location information.

In one embodiment, the number of the auxiliary terminals is multiple, and each of the auxiliary terminals corresponds to one of the broadcast information and one of the auxiliary location information; the determining module is configured to: according to each auxiliary terminal received The broadcast information and the auxiliary location information of each of the auxiliary terminals, calculate the relative distance between each of the auxiliary terminals and the target device; according to the auxiliary location corresponding to each of the auxiliary terminals information and the relative distance, and calculate multiple estimated position values of the target device; calculate an average value of the multiple estimated position values, and use the average value as the target position information of the target device.

In an embodiment, the number of the auxiliary terminal is one; the determining module is configured to: use the auxiliary location information of the auxiliary terminal as the target location information of the target device.

In an embodiment, the returned information is a ciphertext encrypted by the public key of the target device; the device further includes: a decryption module, configured to transmit the information according to the broadcast information and the auxiliary location information , before determining the target location information of the target device, decrypt the returned information according to a preset private key to obtain the decrypted broadcast information and the auxiliary location information, the private key and the public The key is a pair of key pairs.

The third aspect of the embodiment of the present application provides an electronic device, including: a memory for storing a computer program; a processor for executing the computer program, so as to realize the first aspect of the embodiment of the present application and any embodiment thereof Methods.

The fourth aspect of the embodiment of the present application provides an electronic wallet, including: a security module, used to load virtual card information; a communication module, used to establish a communication connection with a bound external device; a main control module, respectively connected to the security module and the communication module are used to control the virtual card of the security module to perform data interaction with the external device through the communication module; the main control module is also used to: receive the offline protection sent by the external device instruction, the offline protection instruction carries an offline protection duration; when the electronic wallet does not establish a communication connection with the external device within the offline protection duration, control the security module to close the virtual card data interaction permissions.

The fifth aspect of the embodiment of the present application provides a non-transitory electronic device-readable storage medium, including: a program that, when run by the electronic device, enables the electronic device to execute the first aspect of the embodiment of the present application and any other A method of an embodiment.

The device positioning method, device, device, wallet and storage medium provided in this application can query the server for the broadcast information sent by the target device and the auxiliary location information of the auxiliary terminal when receiving the broadcast information through the user terminal, based on the broadcast information and The auxiliary location information can locate the location of the target device, so that when the target device is not in the vicinity of the user terminal, the target device can also be remotely located, and then the target device can be found in time when the target device is lost, reducing the user's property loss.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings that need to be used in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, so It should not be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings according to these drawings without creative work.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

2A to 2F are schematic diagrams of application scenarios of a device positioning method according to an embodiment of the present application;

FIG. 3 is a schematic flowchart of a device positioning method according to an embodiment of the present application;

FIG. 4 is a schematic flowchart of a device positioning method according to an embodiment of the present application;

5A to 5C are schematic diagrams for calculating the center point between two auxiliary points according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an equipment positioning device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the present application, the terms "first", "second" and the like are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

As shown in FIG. 1 , this embodiment provides an electronic device 1 , including: at least one processor 11 and a memory 12 , and one processor is taken as an example in FIG. 1 . Processor 11 and memory 12 are connected via bus 10 . The memory 12 stores instructions that can be executed by the processor 11, and the instructions are executed by the processor 11, so that the electronic device 1 can execute all or part of the process of the method in the following embodiments to remotely locate the target device, and then the target device When the device is lost, the target device can be found in time to reduce the user's property loss.

In one embodiment, the electronic device 1 may be a mobile phone, a tablet computer, a notebook computer, a desktop computer and other devices.

In one embodiment, the target device may be a mobile device with e-wallet function.

As shown in FIG. 2A, it is a schematic diagram of a device positioning system according to an embodiment of the present application, including: an electronic wallet 2, an electronic device 1 and a server 3, wherein:

The server 3 may include: a location search module, a virtual card management module and a device management module.

The electronic wallet 2 stores the user's smart virtual card information, such as access control cards, bus cards, bank cards, and digital RMB wallets. The electronic wallet 2 can perform data interaction with the electronic device 1 through a data connection. The electronic device 1 is loaded with application program, the electronic device 1 can perform data interaction with the electronic wallet 2 and the server 3 based on the application program, so as to complete the control of the electronic wallet 2 .

As shown in Figure 2B, it is a schematic diagram of an electronic wallet 2 according to an embodiment of the present application, including: a main control module, a security module, and a communication module, wherein the communication module may include: an NFC module, a Bluetooth module, and a UWB (Ultra Wide Band, Ultra Wide Band) Broadband) module, in which:

The security module is used for loading virtual card information. The private information of the user is stored in the security module, for example, it may include: the key data of the electronic wallet 2 itself, bus card, access control card, bank card, digital RMB and other application data. The security module has the function of anti-attack and anti-cracking, which can guarantee the security of user data.

The communication module is used to establish a communication connection with the bound external device. For example, the NFC module supports an external NFC card reader, transmits data through the NFC antenna, and can interact with the security module to complete the card swiping recharge transaction of virtual cards such as bus cards, and can complete the identity verification transaction of the access control card and the deduction of the bank card. Remittance transactions, as well as digital RMB consumption transactions and other types of transactions that comply with industry norms. The NFC module can also accept instructions from the main control module to perform read and write operations on external physical cards.

The main control module is respectively connected to the security module and the communication module, and the virtual card used to control the security module performs data interaction with external devices through the communication module. The electronic wallet 2 can control the bluetooth antenna of the bluetooth module to broadcast messages to the outside through the main control module, and can establish communication with the electronic device 1 supporting bluetooth. For example, the electronic wallet 2 can be connected with the user's mobile phone or computer to complete operations such as activation and management of the electronic wallet 2 and virtual card management. At the same time, the bluetooth module can also be connected with the acceptance terminal of the electronic wallet 2 to complete the transaction. For example, the access control card reader (acceptance terminal) that supports Bluetooth can establish a connection with the electronic wallet 2, complete the transaction logic through the main control module, and use the security key stored in the security module to open the door after identity verification.

The e-wallet 2 has a built-in UWB module, which can be used for data interaction with other UWB devices to complete precise positioning. For example, the main control module establishes a connection with the external auxiliary terminal 4 or electronic device 1 that supports UWB by controlling the UWB module, so that the electronic device 1 can accurately locate the electronic wallet 2, thereby facilitating the user to find the location of the electronic wallet 2.

In addition, for external devices that support UWB protocol communication, the electronic wallet 2 can also use the bus card application or digital RMB application stored in the security module to complete consumption transactions. Take out the e-wallet 2 to complete the premium experience of the transaction.

In an embodiment, the main control module is further configured to: receive an offline protection instruction sent by an external device, and the offline protection instruction carries an offline protection duration. When the electronic wallet 2 does not establish a communication connection with the external device within the offline protection period, the control security module closes the data interaction authority of the virtual card.

In an actual scenario, the user can set the offline time of the electronic wallet 2 through the smart phone application, where the definition of offline can be a state where the user's mobile phone and the electronic wallet 2 are not connected. That is, when the communication between the electronic wallet 2 and the user's mobile phone stops, the timing starts. Within the offline time range, the electronic wallet 2 normally performs various functions, including the use of virtual cards. After the e-wallet 2 counts beyond the offline time, it will set itself to the lost mode, and the virtual card simulation function will be closed, thereby protecting the fund security and identity security in the virtual card, so that the person who picks up or steals the e-wallet 2 It is impossible to use the e-wallet 2 to take a car, or to swipe the card to enter and exit the community or company access control, so as to realize the loss protection of the e-wallet 2. When the electronic wallet 2 is successfully connected with the user's mobile phone again, check the enabling status of the virtual card and keep it in an available mode. At the same time, the internal timer of the electronic wallet 2 is reset. User can choose to disable this feature.

As shown in Figure 2C, when using the electronic wallet 2 (i.e., the smart wallet), it is first necessary to complete the activation of the electronic wallet 2 and the binding process between the electronic wallet 2 and the electronic device 1. The electronic device 1 takes the user's smart phone as an example. The specific process is as follows:

1. First of all, the electronic wallet 2 needs its own battery, such as a button battery or a lithium battery. After purchasing the electronic wallet 2, the user needs to ensure that the electronic wallet 2 has sufficient power. After turning on the power of the electronic wallet 2, it will automatically enter the waiting state.

2. The electronic wallet 2 sends Bluetooth broadcasts waiting for pairing at regular intervals. The user opens the corresponding application on the smart phone, selects to add a device, and actively scans the electronic wallet 2 through Bluetooth. After the electronic wallet 2 is found, the user is prompted to bind it.

3. After the user confirms the binding, the smart phone application establishes a connection with the e-wallet 2 and performs a device verification process to ensure that the e-wallet 2 is a real and legal device, allowing the establishment of a binding relationship with the application. Alternatively, the Wallet 2 may require the user to click a button or vibrate the Wallet 2 to authorize the smartphone connection. After the connection is successful, a secure channel between the smart phone application program and the electronic wallet 2 is established to protect subsequent data transmission.

4. The smartphone application generates an asymmetric public-private key pair, and securely stores the private key with the smartphone. The private key will be used to decrypt the geographic location information encrypted by the public key in the future. According to security requirements and device capabilities, you can choose to store the private key in eSE (Embedded SE, Embedded Secure Element), TEE ((Trusted Execution Environment, Trusted Execution Environment) or other secure storage methods in the operating system.

5. The smart phone application writes the public key into the electronic wallet 2 through a secure channel.

6. The smart phone application sends the device identification information of the electronic wallet 2 and the account currently logged in by the user to the server 3 to realize the registration of the electronic wallet 2 and bind the electronic wallet 2 to the current account. In the future, the user can obtain the location information of the electronic wallet 2 through the current account. The pairing process is now complete.

7. The smart phone application program reads the information of the electronic wallet 2, including information such as the brand, model, serial number, and opened virtual card of the electronic wallet 2.

8. The smart phone application displays the information that the user cares about, and prompts the user that the device is successfully bound.

As shown in Figure 2D, when the electronic wallet 2 (that is, the smart wallet) is used, if the user wants to use a certain virtual card, he first needs to complete the opening process of the relevant virtual card. The electronic device 1 takes the user's smart phone as an example. The process is as follows:

1. The electronic wallet 2 repeatedly sends broadcast information at regular intervals.

2. The smart phone application initiates a connection action to establish a connection with the electronic wallet 2 .

3. The user can select a virtual card application in the application program of the smartphone to apply for activation. Virtual card applications can be bus cards, access control cards, bank cards or digital renminbi, etc.

4. According to the settings of the virtual card, when payment is required, the user first completes the payment action in the application program of the smartphone.

5. After completing the payment, the application program of the smart phone applies to the server 3 for opening a virtual card.

6. The virtual card management module of the server 3 requests the payment result from the payment channel.

7. The payment channel returns the successful payment result to the virtual card management module.

8. The virtual card management module of the server 3 requests a card issuing authority from the card issuing institution.

9. The card issuer authorizes the application for card issuance, and returns the authorization result to the server 3 .

10. The virtual card management module of the server 3 generates a virtual card activation instruction and sends it to the application program of the smart phone.

11. After the application program of the smart phone obtains the activation instruction of the virtual card, it forwards it to the electronic wallet 2 for execution, so that the electronic wallet 2 downloads the virtual card application into the electronic wallet 2.

12. The main control module of the electronic wallet 2 can receive the activation instruction of the virtual card through the Bluetooth module, and then forward the instruction to the security module for execution. The security module returns the execution result to the main control module.

13. The main control module of the electronic wallet 2 returns the execution result of the activation instruction of the virtual card to the application program of the smart phone through the Bluetooth module. The application program of the smart phone then verifies the execution result through the server 3 to determine that the virtual card is activated successfully.

14. The smart phone application prompts the user that the virtual card is activated successfully, and displays the activation result to the user.

After the virtual card is opened, the user can manage the virtual card through the application program of the smart phone: for example, the user can delete the virtual card. Users can specify the bus card, access control card, bank card or digital RMB wallet application to delete in the smartphone application. After the user initiates a deletion request through the application program, the application program requests a virtual card deletion instruction through the virtual card management module to complete the deletion process.

In one embodiment, the virtual bus card can also be recharged through an application program on a smart phone. The recharging process is similar to the opening process of a virtual card. The user needs to select the recharge amount and pay the corresponding amount, and then the application virtual card management module of the smart phone applies for a recharge instruction to complete the recharge process.

Use of virtual card: After the user activates the relevant virtual card through the relevant application program of the smart phone, the user can carry the electronic wallet 2 and use it on the acceptance terminals such as bus POS machines, community or company access control, and store consumption POS machines.

In one embodiment, the electronic device 1 can be the user's mobile phone. Suppose the electronic wallet 2 is lost. When the electronic wallet 2 is near the user's location, the user can use the UWB function of the mobile phone to check the exact location of the electronic wallet 2. display. The user can search for the electronic wallet 2 according to the position and direction displayed on the screen of the mobile phone. As shown in Figure 2E, the positioning method of the short-distance electronic wallet 2 is as follows:

1. The e-wallet 2 will continuously send broadcast information through bluetooth at regular intervals.

2. The user's mobile phone establishes a connection with the electronic wallet 2 via Bluetooth, and negotiates a UWB communication key.

3. The user's mobile phone uses its own UWB module to locate the electronic wallet 2, calculate the distance by calculating the transmission and return time of communication data, and calculate the angle of the electronic wallet 2 through the arrival angle of the UWB signal, so as to accurately calculate the electronic wallet 2. The location of wallet 2.

4. The user's mobile phone displays the location information of the electronic wallet 2 and the current location information of the user to the user based on the application program, and assists the user in locating and finding the lost electronic wallet 2 .

In actual scenarios, after the electronic wallet 2 is lost, it often occurs that the electronic wallet 2 is not within the UWB positioning range of the mobile phone. At this time, the user can initiate a remote positioning operation by starting an application program on the mobile phone.

As shown in FIG. 2F , it is a schematic diagram of a device positioning system according to an embodiment of the present application, which also includes: an auxiliary terminal 4, where the auxiliary terminal 4 can be any other user's mobile phone, tablet computer, smart bracelet and other devices.

In actual scenarios, the electronic wallet 2 will automatically broadcast messages at certain intervals. When there is an auxiliary terminal 4 nearby that can communicate with the electronic wallet 2 , the auxiliary terminal 4 can establish a connection with the electronic wallet 2 , and then encrypt and upload its location information to the server 3 . The user downloads and decrypts the location information of the auxiliary terminal 4 through the application program on the mobile phone, and then obtains the location of the electronic wallet 2 based on the location information of the auxiliary terminal 4 . The specific process can be as follows:

Please refer to FIG. 3 , which is a device positioning method according to an embodiment of the present application. This method can be executed by the electronic device 1 shown in FIG. 1 as the current terminal, and can be applied to the electronic wallet 2 shown in FIG. 2A to FIG. 2F In the positioning scenario, to realize that when the electronic wallet 2 is not near the electronic device 1, the electronic wallet 2 can also be remotely located, and then the lost electronic wallet 2 can be found in time to reduce the user's property loss. The method comprises the steps of:

Step 301: Send a query request to the server 3, where the query request carries identification information of the target device to be queried.

In this step, the target device is an electronic wallet 2, and the electronic device 1 is an example of a user's mobile phone. The identification information can be the unique product number of the electronic wallet 2, or self-defined identification information, and the identification information can be searched Wallet 2 distinguishes itself from other devices. When the user's electronic wallet 2 is lost, the user can actively send an inquiry request to the server 3 through the mobile phone to perform remote location search.

Step 302: Receiving the information returned by the server 3 based on the query request, the returned information carries the broadcast information received by the auxiliary terminal 4 from the target device and the auxiliary location information of the auxiliary terminal 4 when receiving the broadcast information.

In this step, before the electronic device 1 sends a query request to the service, the electronic wallet 2 will continuously send broadcast information via bluetooth at a certain interval. The public key of the electronic wallet 2 may be carried in the broadcast information. Any smart device, including mobile phones, tablets, computers, routers and Internet of Things devices, etc., as long as it can support the establishment of data communication with the electronic wallet 2, can be used as the auxiliary terminal 4. When the auxiliary terminal 4 appears near the electronic wallet 2 , can accept the broadcast information sent by electronic wallet 2, and read the public key of electronic wallet 2. After the auxiliary terminal 4 receives the broadcast information, it can read the geographic location information of itself in real time, and then use the public key to encrypt the geographic location information of the auxiliary terminal 4 (ie, auxiliary location information). The geographic location information of the auxiliary terminal 4 itself is encrypted and uploaded to the server 3 . Since the geographic location information of the auxiliary terminal 4 itself is encrypted by the public key of the electronic wallet 2, the corresponding private key only exists in the mobile phone device bound to the electronic wallet 2. Therefore, only the mobile phone bound with the electronic wallet 2 can decrypt and view the information, which ensures the security of user information. After step 301, the mobile phone can receive the return information from the server 3 in real time, and the return information is the specific information returned by the server 3 based on the query request. The returned information may be the encrypted geographic location information uploaded by the auxiliary terminal 4 within a period of time and the broadcast information received by the auxiliary terminal 4 from the electronic wallet 2 .

Step 303: Determine the target location information of the target device according to the broadcast information and the auxiliary location information.

In this step, when the user's mobile phone cannot directly locate the electronic wallet 2 at close range, the electronic wallet 2 can be located indirectly based on the geographic location information of other auxiliary devices stored in the server 3 and related broadcast information , on the mobile phone side, the current location and track of the electronic wallet 2 can be displayed to the user based on the application program, and then assist the user to find the lost electronic wallet 2 .

In one embodiment, the returned information is a ciphertext encrypted by the public key of the target device. That is, the information returned by the server 3 is encrypted by the public key of the e-wallet 2, and the private key of the e-wallet 2 is stored in the mobile phone of the user bound to the e-wallet 2, and the private key and the above-mentioned public key are a pair key pair. Therefore, before step 303, the return information is firstly decrypted according to the preset private key to obtain the decrypted broadcast information and auxiliary location information, and then the geographic location information of the auxiliary device and related broadcast information are indirectly connected to the electronic wallet 2 for remote positioning.

In the above device positioning method, the user terminal can query the server 3 for the broadcast information sent by the target device and the auxiliary location information when the auxiliary terminal 4 receives the broadcast information, and based on the broadcast information and the auxiliary location information, the target can be located The location of the device realizes that when the target device is not near the user terminal, the target device can also be located remotely, and then the target device can be found in time when the target device is lost, reducing the user's property loss.

Please refer to FIG. 4, which is a device positioning method according to an embodiment of the present application. This method can be executed by the electronic device 1 shown in FIG. 1 as the current terminal, and can be applied to the electronic wallet 2 shown in FIG. 2A to FIG. 2F In the positioning scenario, to realize that when the electronic wallet 2 is not near the electronic device 1, the electronic wallet 2 can also be remotely located, and then the lost electronic wallet 2 can be found in time to reduce the user's property loss. The method comprises the steps of:

Step 401: Send a query request to the server 3, where the query request carries the identification information of the target device to be queried. For details, refer to the description of step 301 in the foregoing embodiments.

Step 402: Receiving the information returned by the server 3 based on the query request, the returned information carries the broadcast information received by the auxiliary terminal 4 from the target device and the auxiliary location information of the auxiliary terminal 4 when receiving the broadcast information. For details, refer to the description of step 302 in the foregoing embodiments.

Step 403: Calculate the relative distance between each auxiliary terminal 4 and the target device according to the broadcast information received by each auxiliary terminal 4 and the auxiliary location information of each auxiliary terminal 4 .

In this step, if there are multiple auxiliary terminals 4, each auxiliary terminal 4 corresponds to one piece of broadcast information and one piece of auxiliary location information. That is to say, when remote positioning, at the same time, there may be multiple smart devices that can be used as auxiliary terminals 4 near the electronic wallet 2, and each smart device will upload the broadcast information received by the electronic wallet 2 to the server. 3. At this time, when determining the target location information of the target device according to the broadcast information and the auxiliary location information, firstly, according to the broadcast information received by each auxiliary terminal 4 and the auxiliary location information corresponding to the auxiliary terminal 4, calculate each auxiliary terminal 4 The relative distance to the target device.

In an embodiment, step 403 may include: for each auxiliary terminal 4 , calculating the relative distance between the auxiliary terminal 4 and the target device according to the signal strength of the broadcast information and the auxiliary location information. The broadcast information may include broadcast content and broadcast signal strength RSSI (Received Signal Strength Indication, signal strength indication) information. RSSI information is a commonly used indicator in Bluetooth communication. Each auxiliary terminal 4 will upload the received broadcast content and RSSI information to the server 3. RSSI information can be used to estimate the distance between the sender and receiver of the Bluetooth signal . When the auxiliary terminal 4 receives the broadcast information sent by the electronic wallet 2, it will carry RSSI. From the RSSI, the relative distance between the auxiliary terminal 4 and the smart wallet can be estimated.

Step 404: According to the auxiliary position information and relative distance corresponding to each auxiliary terminal 4, calculate multiple position estimation values of the target device.

In this step, if the information returned by the server 3 includes auxiliary location information of a plurality of auxiliary terminals 4, then the same amount of relative location information can be obtained in the corresponding step 403, considering the positioning information uploaded by each auxiliary terminal 4 comprehensively, To calculate multiple position estimates of the electronic wallet 2, the accuracy of remote positioning can be improved.

In an embodiment, step 403 may include: calculating a center point position of every pair of auxiliary position information, and using the center point position as an estimated position value of the target device.

If there is more than one auxiliary terminal 4 positioning information P1...Pn in the information returned by the server 3 (i.e. auxiliary position information, wherein Pn represents the auxiliary point corresponding to the auxiliary position information of the nth auxiliary terminal 4, and n is an integer greater than 1 ), the relative distances between the auxiliary position information P1...Pn corresponding to each auxiliary terminal 4 and the electronic wallet 2 are L1...Ln respectively, and the center positions are calculated pair by pair for n auxiliary points.

In one embodiment, it is assumed that the position of the center point between the auxiliary point Pa and the auxiliary point Pb needs to be calculated: a circle A is drawn with the auxiliary point Pa as the center and the relative distance La as the radius. And a circle B is drawn with the auxiliary point Pb as the center and the relative distance Lb as the radius. It is calculated as follows:

1. As shown in Figure 5A, if circle A and circle B have two intersection points: R and S, then take the middle point of the line connecting point R and point S as the center point position between auxiliary point Pa and auxiliary point Pb p.

2. As shown in FIG. 5B, if circle A and circle B have an intersection point: P, then take point P as the center point between auxiliary point Pa and auxiliary point Pb.

3. As shown in Figure 5C, if there is no intersection point between circle A and circle B, the intersection points of the line connecting the centers of circle A and circle B and the circumference are R and S respectively. Take the middle point P of the line connecting point R and point S as the center point between auxiliary point Pa and auxiliary point Pb.

Step 405: Calculate the average value of multiple estimated position values, and use the average value as the target position information of the target device.

In this step, the remote positioning of the electronic wallet 2 can be realized by averaging multiple estimated positions of the electronic wallet 2, and the more the auxiliary position information is, the more accurate the calculation result will be.

In an embodiment, step 405 may include: calculating an average position of all center point positions, and using the average position as target position information of the target device.

Based on the method of calculating the central points of the two auxiliary points in the above step 404, for n auxiliary points P1...Pn two-by-two calculation, it can be obtained

a central point. if

m is a positive integer, P'1...P'm are m center points, and their coordinates are (x ₁ ,y ₁ )...(x _m ,y _m ). Then the average point Q coordinates of m center points can be calculated by the following formula:

Finally, the point Q(x, y) is used as the target position information of the electronic wallet 2 .

In one embodiment, the number of the auxiliary terminal 4 is one. When determining the location information of the target device according to the broadcast information and the location information of the auxiliary terminal 4, the auxiliary location information of the auxiliary terminal 4 may be directly used as the target location information of the target device. That is to say, if the information returned by the server 3 only includes the location information P of one smart device and its relative distance L to the electronic wallet 2, then the location information P is directly used as the target location information of the electronic wallet 2.

Please refer to FIG. 5, which is a device positioning device 600 according to an embodiment of the present application. This device can be applied to the electronic device 1 shown in FIG. In order to realize that when the electronic wallet 2 is not in the vicinity of the electronic device 1, the electronic wallet 2 can also be remotely located, and then the lost electronic wallet 2 can be found in time to reduce the user's property loss. The device includes: a sending module 601, a receiving module 602 and a determining module 603, and the principle relationship of each module is as follows:

The sending module 601 is configured to send a query request to the server 3, where the query request carries identification information of the target device to be queried.

The receiving module 602 is configured to receive the information returned by the server 3 based on the query request, the returned information carries the broadcast information received by the auxiliary terminal 4 from the target device and the auxiliary location information of the auxiliary terminal 4 when receiving the broadcast information.

The determining module 603 is configured to determine the target location information of the target device according to the broadcast information and the auxiliary location information.

In one embodiment, there are multiple auxiliary terminals 4, and each auxiliary terminal 4 corresponds to a piece of broadcast information and a piece of auxiliary location information. The determining module 603 is configured to: calculate the relative distance between each auxiliary terminal 4 and the target device according to the broadcast information received by each auxiliary terminal 4 and the auxiliary location information of each auxiliary terminal 4 . According to the auxiliary position information and the relative distance corresponding to each auxiliary terminal 4, multiple estimated position values of the target device are calculated. Calculate an average value of a plurality of position estimation values, and use the average value as target position information of the target device.

In one embodiment, according to the broadcast information received by each auxiliary terminal 4 and the auxiliary location information of each auxiliary terminal 4, calculating the relative distance between each auxiliary terminal 4 and the target device includes: for each auxiliary terminal 4 , calculate the relative distance between the auxiliary terminal 4 and the target device according to the signal strength of the broadcast information and the auxiliary location information.

In one embodiment, according to the auxiliary position information and relative distance corresponding to each auxiliary terminal 4, the calculation of multiple estimated position values of the target device includes: calculating the center point position of every pair of auxiliary position information, and taking the center point position as The location estimate of the target device.

In one embodiment, calculating the average value of multiple position estimation values and using the average value as the target position information of the target device includes: calculating the average position of all center points, and using the average position as the target position information of the target device.

In one embodiment, the number of the auxiliary terminal 4 is one. The determining module 603 is configured to: use the auxiliary location information of the auxiliary terminal 4 as the target location information of the target device.

In one embodiment, the returned information is a ciphertext encrypted by the public key of the target device. The device also includes: a decryption module 604, configured to decrypt the returned information according to the preset private key before determining the target location information of the target device according to the broadcast information and the auxiliary location information, to obtain the decrypted broadcast information and the auxiliary location Information, the private key and the public key are a pair of key pairs.

For the detailed description of the device locating apparatus 600, please refer to the description of relevant method steps in the above embodiments.

The embodiment of the present application also provides a non-transitory electronic device 1 readable storage medium, including: a program, when running on the electronic device 1, the electronic device 1 can execute all or part of the process of the method in the above embodiment . Wherein, the storage medium can be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a flash memory (Flash Memory), a hard disk (Hard Disk Drive, Abbreviation: HDD) or Solid-State Drive (SSD), etc. The storage medium may also include a combination of the above-mentioned kinds of memories.

Although the embodiment of the application has been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the application, and such modifications and variations all fall into the scope defined by the appended claims. within the limited range.

Claims

A device positioning method, characterized in that, comprising:

Sending a query request to the server, the query request carrying identification information of the target device to be queried;

receiving the return information from the server based on the query request, the return information carrying the broadcast information received by the auxiliary terminal from the target device and the auxiliary location information of the auxiliary terminal when receiving the broadcast information ;

Determine target location information of the target device according to the broadcast information and the auxiliary location information.
The method according to claim 1, wherein the number of the auxiliary terminals is multiple, and each of the auxiliary terminals corresponds to one of the broadcast information and one of the auxiliary location information; Information and the auxiliary location information, determining the target location information of the target device, including:

calculating a relative distance between each of the auxiliary terminals and the target device according to the broadcast information received by each of the auxiliary terminals and the auxiliary location information of each of the auxiliary terminals;

calculating a plurality of estimated position values of the target device according to the assisted position information and the relative distance corresponding to each assisted terminal;

calculating an average value of the plurality of estimated position values, and using the average value as the target position information of the target device.
The method according to claim 2, characterized in that, according to the broadcast information received by each of the auxiliary terminals and the auxiliary location information of each of the auxiliary terminals, the distance between each of the auxiliary terminals is calculated. The relative distance between the target devices, including:

For each of the auxiliary terminals, the relative distance between the auxiliary terminal and the target device is calculated according to the signal strength of the broadcast information and the auxiliary location information.
The method according to claim 2, wherein the calculating multiple estimated position values of the target device according to the auxiliary position information and the relative distance corresponding to each of the auxiliary terminals includes:

Calculate the center point position of every pair of the auxiliary position information, and use the center point position as the estimated position value of the target device.
The method according to claim 4, wherein the calculating the average value of the plurality of position estimation values and using the average value as the target position information of the target device comprises:

Calculate the average position of all the central point positions, and use the average position as the target position information of the target device.
The method according to claim 1, wherein the number of the auxiliary terminal is one; determining the location information of the target device according to the broadcast information and the location information of the auxiliary terminal includes:

The auxiliary location information of the auxiliary terminal is used as the target location information of the target device.
The method according to claim 1, wherein the returned information is a ciphertext encrypted by the public key of the target device; and determining the Before the target location information of the target device, also include:

Decrypting the returned information according to a preset private key to obtain the decrypted broadcast information and the auxiliary location information, where the private key and the public key are a pair of key pairs.
A device positioning device, characterized in that it comprises:

A sending module, configured to send a query request to the server, where the query request carries identification information of the target device to be queried;

A receiving module, configured to receive the information returned by the server based on the query request, the returned information carries the broadcast information received by the auxiliary terminal from the target device and the broadcast information received by the auxiliary terminal after receiving the broadcast information Auxiliary location information at the time;

A determining module, configured to determine target location information of the target device according to the broadcast information and the auxiliary location information.
The device according to claim 8, wherein the number of the auxiliary terminals is multiple, and each of the auxiliary terminals corresponds to one of the broadcast information and one of the auxiliary location information; the determining module is used for:

calculating a relative distance between each of the auxiliary terminals and the target device according to the broadcast information received by each of the auxiliary terminals and the auxiliary location information of each of the auxiliary terminals;

calculating a plurality of estimated position values of the target device according to the assisted position information and the relative distance corresponding to each assisted terminal;

calculating an average value of the plurality of estimated position values, and using the average value as the target position information of the target device.
The device according to claim 9, wherein, according to the broadcast information received by each of the auxiliary terminals and the auxiliary location information of each of the auxiliary terminals, the distance between each of the auxiliary terminals is calculated. The relative distance between the target devices, including:

For each of the auxiliary terminals, the relative distance between the auxiliary terminal and the target device is calculated according to the signal strength of the broadcast information and the auxiliary location information.
The device according to claim 9, wherein the calculating multiple estimated position values of the target device according to the auxiliary position information and the relative distance corresponding to each of the auxiliary terminals includes:

Calculate the center point position of every pair of the auxiliary position information, and use the center point position as the estimated position value of the target device.
The device according to claim 11, wherein the calculating the average value of the plurality of estimated position values, using the average value as the target position information of the target device, comprises:

Calculate the average position of all the central point positions, and use the average position as the target position information of the target device.
The device according to claim 8, wherein the number of the auxiliary terminal is one; the determining module is used for:

The auxiliary location information of the auxiliary terminal is used as the target location information of the target device.
The device according to claim 8, wherein the returned information is a ciphertext encrypted by the public key of the target device; the device further comprises:

A decryption module, configured to decrypt the returned information according to a preset private key before determining the target location information of the target device according to the broadcast information and the auxiliary location information, to obtain the decrypted The broadcast information and the auxiliary location information, the private key and the public key are a key pair.
An electronic device, characterized in that it comprises:

memory for storing computer programs;

A processor, configured to execute the computer program to implement the method according to any one of claims 1-7.
An electronic wallet, characterized in that it comprises:

A security module for loading virtual card information;

A communication module, configured to establish a communication connection with a bound external device;

The main control module is connected to the security module and the communication module respectively, and is used to control the virtual card of the security module to perform data interaction with the external device through the communication module;

The main control module is also used for:

receiving an offline protection instruction sent by the external device, the offline protection instruction carrying an offline protection duration;

When the electronic wallet does not establish a communication connection with the external device within the offline protection duration, the security module is controlled to close the data interaction authority of the virtual card.
A storage medium readable by a non-transitory electronic device, characterized by comprising: a program, which, when run by the electronic device, causes the electronic device to execute the method described in any one of claims 1-7.