WO2021072846A1

WO2021072846A1 - Position acquisition method and apparatus, and storage medium and electronic device

Info

Publication number: WO2021072846A1
Application number: PCT/CN2019/116780
Authority: WO
Inventors: 王嵩
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2019-10-18
Filing date: 2019-11-08
Publication date: 2021-04-22
Also published as: CN111065088A; CN111065088B

Abstract

A position acquisition method and apparatus, and a storage medium and an electronic device. The method comprises: receiving first initial position information sent by a positioner at a target moment, and receiving first relative position information sent by the positioner relative to the first initial position information after the target moment (S101); acquiring second initial position information and second relative position information from the stored position information set, and performing confusion processing on the first initial position information, the first relative position information, the second initial position information and the second relative position information to obtain the position information set subjected to confusion processing (S102); and receiving a position acquisition request of the positioner sent by a user terminal (110), and sending the position information set subjected to confusion processing to the user terminal (110), so that the user terminal (110) performs de-confusion processing on the position information set subjected to confusion processing (S103). By adopting the method, the risk of position information leakage of the user can be reduced, and the privacy security of the user is improved.

Description

Location acquisition method, device, storage medium and electronic equipment

Technical field

This application relates to the field of computer technology, and in particular to a location acquisition method, device, storage medium, and electronic equipment.

Background technique

The description of the background technology in this application belongs to the related technology related to this application. It is only used to illustrate and facilitate the understanding of the application content of this application. It should not be construed as the applicant expressly believes or presumes that the applicant believes that the application is the first application for this application. Existing technology at the date of application.

With the popularity of wireless communication technology and smart terminal equipment, location-based services have increasingly become an indispensable part of people's work and life. At the same time, locators with location-based services (smart positioning watches, anti-lost devices, positioning bracelets, etc.) have also emerged. After users establish a connection with the locator through a user terminal (mobile phone, computer, etc.) that they carry with them, It is possible to grasp and obtain the location information of the positioned objects (children, elderly, pets, etc.) of the locator at any time through the user terminal.

Generally, the locator sends the position information of the positioned object to the server, and the server saves the position information so that the user can obtain the position information of the positioned object on the server through the user terminal.

At present, the locator encrypts the location information of the user (targeted object) and sends it directly to the server. The server then saves the encrypted location information. However, the location information is encrypted and sent by the server. The server saves the location information. It may be maliciously attacked due to security vulnerabilities, causing the user's location information to be leaked and affecting the user's privacy and security.

Summary of the invention

The embodiments of the present application provide a location acquisition method, device, storage medium, and electronic equipment, which can reduce the risk of the user's location information leakage and improve the user's privacy and security. The technical solution is as follows:

In the first aspect, an embodiment of the present application provides a location acquisition method, the method includes:

Receiving first initial position information sent by a locator at a target time, and receiving first relative position information sent by the locator with respect to the first initial position information after the target time;

Obtain the second initial position information and the second relative position information from the saved position information set, and compare the first initial position information, the first relative position information, the second initial position information, and the second Perform obfuscation processing on the relative position information to obtain a collection of obfuscated position information;

Receive the location acquisition request of the locator sent by the user terminal, and send the obfuscated location information set to the user terminal, so that the user terminal can de-obfuscate the obfuscated location information set deal with.

In the second aspect, an embodiment of the present application provides another method for obtaining a location, and the method includes:

When the position query instruction input for the locator is monitored, sending the position acquisition request of the locator to the server;

Receive the obfuscated location information set sent by the server based on the location acquisition request, where the location information set includes the first initial location information, the first relative location information, the second initial location information, and the second Relative position information;

Perform de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to obtain the first initial position information after the de-obfuscation processing And the first relative position information.

In a third aspect, an embodiment of the present application provides a location acquisition device, the device includes:

A position information receiving module, configured to receive first initial position information sent by a locator at a target time, and receive first relative position information sent by the locator with respect to the first initial position information after the target time;

The location information confusion module is used to obtain the second initial location information and the second relative location information from the saved location information set, and compare the first initial location information, the first relative location information, and the second initial location information. Performing obfuscation processing on the position information and the second relative position information to obtain an obfuscated position information set;

The location information sending module is configured to receive the location acquisition request of the locator sent by the user terminal, and send the location information set after the obfuscation processing to the user terminal, so that the user terminal can perform the obfuscation processing after the obfuscation processing. The collection of location information is de-obfuscated.

In a fourth aspect, an embodiment of the present application provides another device for obtaining a position, and the device includes:

The query command monitoring module is used to send the position acquisition request of the locator to the server when the position query command of the locator is monitored;

The location information receiving module is configured to receive the obfuscated location information set sent by the server based on the location acquisition request, where the location information set includes the first initial location information, the first relative location information, and the first relative location information. 2. Initial position information and second relative position information;

The position information de-obfuscation module performs de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information, and obtains the de-obfuscation process. The first initial position information and the first relative position information.

In a fifth aspect, an embodiment of the present application provides a computer storage medium that stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the above method steps.

In a sixth aspect, an embodiment of the present application provides an electronic device, which may include a processor and a memory; wherein the memory stores a computer program, and the computer program is adapted to be loaded by the processor and execute the above method steps .

The beneficial effects brought by the technical solutions provided by some embodiments of the present application include at least:

In one or more embodiments of the present application, the first initial position information sent by the locator at the target time is received, and the first relative position information sent by the locator relative to the first initial position information after the target time is received. Position information, acquiring second initial position information and second relative position information from a set of saved position information, for the first initial position information, the first relative position information, the second initial position information, and all Performing obfuscation processing on the second relative position information to obtain an obfuscated position information set, receiving the position acquisition request of the locator sent by the user terminal, and sending the obfuscated position information set to the user terminal, This allows the user terminal to perform de-obfuscation processing on the obfuscated location information set. By obfuscating the correspondence between the second initial position information, the second relative position information, and the first initial position information and the first relative position information, the position of the locator on the server When the information is leaked, the difficulty of cracking the location information is increased, thereby reducing the risk of the user’s location information leakage. At the same time, the locator sends the first initial location information encrypted by the public key and the first location information encrypted by the preset encryption algorithm to the server in turn. In the relative position information process, the risk of cracking after the first initial position information and/or the first relative position information is intercepted can be reduced, and the privacy and security of the user can be improved.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of a location acquisition scenario architecture provided by an embodiment of the present application;

2 is a schematic diagram of interaction of a location acquisition system provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a location acquisition method provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of another method for obtaining a location according to an embodiment of the present application;

FIG. 5 is a schematic diagram corresponding to an encryption scenario involved in a location acquisition method provided by an embodiment of the present application;

FIG. 6 is a scene diagram corresponding to the confusion processing involved in the location acquisition method provided by the embodiment of the present application;

FIG. 7 is a schematic flowchart of another method for obtaining a location according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a locator connection interface involved in a position acquisition method provided by an embodiment of the present application;

FIG. 9 is a diagram of a displacement track of a locator involved in a position acquisition method provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a location acquisition device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another device for obtaining a position according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a location acquisition module provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a location information de-obfuscation module provided by an embodiment of the present application;

FIG. 14 is a schematic structural diagram of another device for obtaining a position according to an embodiment of the present application;

FIG. 15 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless expressly stipulated and defined otherwise, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances. In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

The application will be described in detail below in conjunction with specific embodiments.

Please refer to FIG. 1, which is a schematic diagram of a scene of a location acquisition system provided by an embodiment of this application. As shown in FIG. 1, the position acquisition system may include a server 100, a user terminal 110, and a locator cluster. The locator cluster may include multiple locators, as shown in FIG. 1, specifically including locators 1, locators 2, ..., locators n, where n is an integer greater than 0; for ease of understanding, the embodiment of the present invention uses The server 100, the user terminal 110, and the locator 1 in FIG. 1 are described as examples.

The server 100 may be a single server device, such as a rack-type, blade, tower, or cabinet-type server device, or a workstation, a large computer, and other hardware devices with strong computing capabilities; or multiple A server cluster composed of servers, each server in the service cluster may be formed in a symmetrical manner, wherein each server is equivalent in function and position in the business link, and each server can independently provide external services. Providing services alone can be understood as without the assistance of another server.

The user terminal 110 may be a terminal device with a location acquisition function, including but not limited to: a mobile terminal, a handheld device, a personal computer, a tablet computer, a vehicle-mounted device, a computing device, or other processing devices connected to a wireless modem, etc.

The locator 1 may be an electronic device with a position locating function. The locator may be a separate device or integrated in an independent tool device, and it may be called a different name in different environments. For example: positioning terminals, trackers, wearable devices, handheld devices, positioning bags, smart school bags, smart luggage, etc.

The user terminal and the locator communicate with the server through a network. The network can be a wireless network or a wired network. The wireless network includes but is not limited to a cellular network, a wireless local area network, an infrared network or a Bluetooth network, and a wired network includes but is not limited to Ethernet, universal serial bus (USB) or controller area network.

Please refer to FIG. 2, which is a schematic diagram of interaction of a location acquisition system provided by an embodiment of this application.

Step 001: The user terminal 110 monitors the connection instruction input for the locator 1 and generates a connection request corresponding to the connection instruction.

The instructions are instructions and commands that direct the work of the user terminal, and can be understood as codes that specify the execution of a certain operation or a certain control realized by a function. The connection instruction refers to the code for the computer to perform the connection operation. In this embodiment, the code for the user terminal to perform the connection operation between the user terminal and the locator can be understood.

Specifically, the locator 1 has a connection code, and the connection code can be in the form of a two-dimensional code, a small program code, a string of random numbers, letter combinations, etc., when the user needs to establish a connection with the locator 1 through the user terminal 110 At this time, the camera function can be turned on through the user terminal, the connection code on the locator can be scanned, and the locator identification of the locator can be obtained by identifying the connection code. The user terminal generates a connection request corresponding to the connection instruction, and the pairing request carries the locator identifier of the locator and the terminal identifier of the user terminal.

Step 002: The user terminal 110 sends the connection request to the server 100, and the connection request carries the locator identifier of the locator 1 and the terminal identifier of the user terminal 110.

The connection request is used to instruct the server 100 to perform a request for connection, pairing, and binding operations. The server 100 may establish a connection relationship between the user terminal 110 and the locator 1 based on the connection request.

The locator identification may be information such as the MAC address, IP address, digital certificate and ID of the locator 1.

The terminal identification may be information such as the MAC address, IP address, digital certificate, and ID of the user terminal 110.

Step 003: The server 100 receives the connection request from the user terminal 110, and establishes a connection between the locator 1 and the user terminal 110.

Specifically, the server 100 receives the connection request of the user terminal 110, obtains the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request, based on the locator identifier and the terminal identifier The mapping relationship between the locator 1 and the user terminal 110 is established, and the mapping relationship between the locator 1 and the user terminal 110 is saved in the local storage space to complete the connection establishment process.

Step 004: The locator 1 obtains the first initial position at the target moment, encrypts the first initial position with a preset public key, and generates first initial position information.

The target time refers to the time used by the locator at the specified time to report the current initial position. In this embodiment, it can be understood that the locator has a timing function. When the locator reaches a certain specified time, the locator starts the positioning function. Get the geographic location of the current locator.

Wherein, the target time may be set by the user. For example, the positioning time set by the user on the user terminal that establishes a binding connection with the locator may be the locating time preset by the locator, for example, when the locator is shipped from the factory. The set positioning time can be the corresponding trigger time when the locator is triggered to report the position. For example, the locator can be a portable positioning bracelet, watch, schoolbag and other devices. When the user turns on the locator, for example, open the positioning The power button of the locator triggers the position report function of the locator. At this time, the trigger time corresponding to "turn on the power button of the locator" is the target time, and so on.

The preset public key is used in the key to encrypt and transmit the first initial location information. Generally, the preset public key corresponds to the preset private key, and the public key and the private key are used to encrypt and decrypt the transmission information. Generally referred to as asymmetric encryption. Wherein, the preset public key may be distributed based on an asymmetric encryption algorithm, and the asymmetric encryption algorithm includes but is not limited to RSA encryption algorithm, Elgamal encryption algorithm, knapsack algorithm, Rabin encryption algorithm, ECC (elliptic curve encryption algorithm) and many more.

Step 005: The locator 1 sends the first initial position information to the server 100.

Step 006: The server 100 receives the first initial location information.

Step 007: The locator 1 obtains the first relative position relative to the first initial position after the target time, and encrypts the first relative position using a preset encryption algorithm to generate first relative position information.

The preset encryption algorithm refers to an algorithm based on a symmetric encryption method, and the symmetric encryption method refers to that the sender and receiver of encrypted information use the same key for encryption/decryption. The algorithm based on the symmetric encryption method may be a DES encryption algorithm, a TripleDES encryption algorithm, an RC2/RC4/RC5 encryption algorithm, a Blowfish encryption algorithm, and so on.

Specifically, after the locator encrypts and sends the first initial location information to the server at the target moment, it can obtain the geographic location of the locator in real time or after a specific period of time (for example, 2s), calculate the relative position relative to the initial location, and The relative position is encrypted by using a preset encryption algorithm to generate first relative position information.

Step 008: The locator 1 sends the first relative position information to the server 100.

Step 009: The server 100 receives the first relative position information.

Step 010: The server 100 obtains the second initial position information and the second relative position information from the stored position information set.

The second initial position information and the second relative position information may be pre-cached by the server, and may be sent and stored by a locator other than the locator indicated by the first initial position information and the first relative position information. Based on the initial position information and relative position information in the existing position information set, it is generated virtually using a position information generator, and so on.

Step 011: The server 100 performs obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to obtain an obfuscated position information set.

The obfuscation processing is usually a process of disassembling and reorganizing obfuscated objects (files, correspondences, etc.). Before and after the obfuscation processing, the number of obfuscated objects usually does not change, and the obfuscated objects are reordered according to predetermined obfuscation rules. , Can improve the anti-deciphering ability of the confused object.

Specifically, the server 100 performs confusion processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to establish the first initial position information The corresponding relationship with the second relative position information, and the corresponding relationship between the first relative position information and the second initial position information is established to obtain the position information set after the obfuscation processing.

Step 012: When the user terminal 110 monitors the position query instruction of the locator 1, it sends the position acquisition request of the locator 1 to the server 100.

The location query instruction is used to query the location information of the queried object. In this embodiment, the location query instruction is used to query the location information of the locator.

The position acquisition request is used to acquire the position information of the locator at a certain point in time and/or time period. The position information is used to characterize the location and orientation of the locator, and may be in the form of an absolute position. For example, coordinates, latitude and longitude, etc., may be in the form of relative positions, that is, using a certain position as a reference point to indicate the position of the locator, and so on.

Step 013: The server 100 sends the obfuscated location information set to the user terminal 110.

Step 014: The user terminal 110 receives the obfuscated location information set, where the location information set includes the first initial location information, the first relative location information, the second initial location information, and the second relative location information .

Step 015: The user terminal 110 de-obfuscates the first initial position information, the first relative position information, the second initial position information, and the second relative position information.

The obfuscation processing is usually a process of disassembling and reorganizing obfuscated objects (files, correspondences, etc.). Before and after the obfuscation processing, the number of obfuscated objects usually does not change, and the obfuscated objects are reordered according to predetermined obfuscation rules. .

The de-obfuscation processing can also be understood as de-obfuscation processing, which is the inverse process of the obfuscation processing, that is, the process of restoring and combining the de-obfuscating objects (files, correspondences, etc.).

Specifically, the user terminal 110 performs de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to establish the first initial position The corresponding relationship between the information and the first relative position information establishes the corresponding relationship between the second initial position information and the second relative position information. Step 016: The user terminal 110 obtains the first initial position information and the first relative position information after de-obfuscation processing.

Specifically, the user terminal 110 obtains the first initial position information and the first initial position based on the corresponding relationship between the first initial position information and the first relative position information after completing the de-obfuscation processing. The first relative position information corresponding to the information.

Step 017: The user terminal 110 uses the preset private key to decrypt the first initial position information to obtain the first initial position corresponding to the first initial position information, and uses a preset decryption algorithm to decrypt the first relative position information Decryption is performed to obtain the first relative position corresponding to the first relative position information.

The preset private key is used in the key to decrypt the first initial location information, and usually the preset private key corresponds to the preset public key.

The preset decryption algorithm corresponds to the preset encryption algorithm. In this embodiment, the preset decryption algorithm is a decryption algorithm based on a symmetric encryption method. The symmetric encryption method means that the sender and receiver of encrypted information use the same A key is used for encryption/decryption. The decryption algorithm based on the symmetric encryption method may be a DES decryption algorithm, a TripleDES decryption algorithm, an RC2/RC4/RC5 decryption algorithm, a Blowfish decryption algorithm, and so on.

Step 018: The user terminal 110 uses the first initial position as a reference, calculates a displacement position corresponding to the first relative position, and generates a displacement trajectory of the locator based on the first initial position and the displacement position.

Specifically, the user terminal 110 decrypts the first initial position information and the first relative position information to obtain the first initial position and the first relative position, and uses the first initial position as a reference point to calculate the relative position of the first relative position. The displacement position of the reference point, wherein the first relative position corresponding to the first relative position information may be multiple, the first initial position and the time point indicated by the displacement position are acquired, and according to the sequence of the time points, The first initial position and the displacement position are connected in pairs to generate the displacement trajectory of the positioner 1.

In the embodiment of the present application, the first initial position information sent by the locator at the target time is received, and the first relative position information sent by the locator relative to the first initial position information after the target time is received. The second initial position information and the second relative position information are acquired from the saved position information set, and the first initial position information, the first relative position information, the second initial position information, and the second relative position information are The position information is obfuscated to obtain the obfuscated position information set, the position acquisition request of the locator sent by the user terminal is received, and the obfuscated position information set is sent to the user terminal, so that the The user terminal performs de-obfuscation processing on the obfuscated location information set. By obfuscating the correspondence between the second initial position information, the second relative position information, and the first initial position information and the first relative position information, the position of the locator on the server When the information is leaked, the difficulty of cracking the location information is increased, thereby reducing the risk of the user’s location information leakage. At the same time, the locator sends the first initial location information encrypted by the public key and the first location information encrypted by the preset encryption algorithm to the server in turn. In the relative position information process, the risk of cracking after the first initial position information and/or the first relative position information is intercepted can be reduced, and the privacy and security of the user can be improved.

In one embodiment, as shown in FIG. 3, a location acquisition method is specially proposed, which can be implemented by relying on a computer program and can be run on a location acquisition device based on the von Neumann system. The computer program can be integrated in the application or run as an independent tool application. For the convenience of description, the location acquisition device is used as a server for detailed description.

Specifically, the location acquisition method includes:

Step 101: Receive first initial position information sent by a locator at a target time, and receive first relative position information sent by the locator relative to the first initial position information after the target time.

Wherein, the target time may be set by the user. For example, the positioning time set by the user on the user terminal that establishes a binding connection with the locator may be the positioning time preset by the locator, for example, when the locator is shipped from the factory. The set positioning time can be the corresponding trigger time when the locator is triggered to report the position. For example, the locator can be a portable positioning bracelet, watch, schoolbag and other devices. When the user turns on the locator, for example, open the positioning The power button of the locator triggers the position report function of the locator. At this time, the trigger time corresponding to "turn on the power button of the locator" is the target time, etc.

The position information refers to the position, the place occupied, or the orientation, and the first initial position information refers to the corresponding initial position of the locator at the beginning of positioning, which can be understood as The first initial position information may be the initial position, the initial place occupied, or the initial position of the locator when the locator is first positioned. The first initial position information may usually be the latitude, longitude, latitude and longitude indicated by the initial position of the locator. Coordinates, direction, azimuth, etc.

The relative position information refers to the relative position determined by the position of its reference point, and the first relative position information can be understood as the relative position of the locator relative to the initial position of the locator after the target moment. Generally, the first relative position information may be the distance, angle, azimuth, latitude and longitude relative to the initial position of the locator.

The first initial position information and the first relative position information mentioned in this embodiment may be acquired by the locator using corresponding position acquisition technology, and the position acquisition technology includes but is not limited to: wireless positioning technology, short-distance connection Technology, sensor technology, location image processing technology, etc., among them:

Wireless positioning technology includes but is not limited to: satellite positioning technology, infrared indoor positioning technology, ultrasonic positioning technology, Bluetooth technology, radio frequency identification technology, ultra-wideband technology, Wi-Fi technology, ZigBee technology, etc.

Sensor technology uses proximity sensors and other position-sensing sensors to determine the position of the locator.

Image processing technology is to perform predictive processing on the location image taken by the camera to obtain location information and so on.

Specifically, the position report function of the locator is triggered, the locator obtains the current initial position of the locator at the target time (the time corresponding to the time when the position report function of the locator is triggered), and sends to the server the initial position containing the position The first initial position information of the initial position where the locator is currently located. At this time, the server receives the first initial position information sent by the locator.

Specifically, after the locator obtains the initial position information, it obtains the geographic location where the locator is located at a certain time interval (for example, 2 seconds) in the next time interval, and uses the initial position of the locator as a reference point to calculate The relative position of the geographic location where the locator is located with respect to the initial position, to obtain the first relative position information, and the locator sends the first relative position information to the server. At this time, the server can receive the positioning The first relative position information sent by the device.

Optionally, the position reporting function of the locator is triggered, which may be an active trigger, and the active trigger may be understood as the user carrying the locator arrives at a certain place at a certain time, and then starts the positioning at that time. The positioning function of the locator, the locator is in a shutdown or low power consumption state before that time, after the user actively turns on the positioning function of the locator, the locator obtains the first initial position information, and the first initial position information Sent to the server, usually the location of the user carrying the locator is not fixed, the locator is separated by a certain time interval, and the position information indicated by the next time interval is obtained, and the initial position is used as the reference point to obtain the positioning The first relative position information of the locator, the locator sends the first relative position information to the server.

Optionally, the location report function of the locator is triggered, which may be a passive trigger, and the passive trigger may be that the locator is set with a specific active area. After the locator is turned on, the current geographic location of the user carrying the locator is located in real time. When the geographic location is outside the specific active area, the position report function of the locator is triggered and sends the real-time position of the current locator to the server; the passive trigger may be that the locator is set with a specific time point ( For example, 21:00), when the time point is reached, the position report function of the locator is triggered, and so on.

In a specific implementation scenario, after the position report function of the locator is triggered, the locator obtains the current first initial position information-the latitude and longitude coordinates of the initial position, such as the latitude and longitude coordinates (a0, b0) of the initial position, and the The initial position coordinates are sent to the server, and the locator obtains the latitude and longitude coordinates corresponding to the next time interval at a specific time interval (for example, 2s). a0, b0) is the benchmark, calculate the relative position coordinates (a1-a0, b1-b0) corresponding to the next time interval, and send the first relative position information (relative position coordinates (a1-a0, b1-b0)) to the server At this time, the server receives the first initial position information (a0, b0) sent by the locator, and receives the first relative position information of the locator.

Optionally, the locator may package each relative position sub-information within a period of time (for example, within 10 minutes) in the form of first relative position information and send it to the server.

Optionally, the locator may sequentially send the first relative position information to the server within a specific time interval, and the server may receive at least one piece of the first relative position information within the specific time interval, and the server may The at least one piece of the first relative position information is combined and processed to obtain the processed first relative position information.

Step 102: Obtain the second initial position information and the second relative position information from the saved position information set, and compare the first initial position information, the first relative position information, the second initial position information, and all the information. The second relative position information is subjected to obfuscation processing to obtain the position information set after obfuscation processing.

The position information set stores the second initial position information and the second relative position information sent by at least one locator. In this embodiment, it can be understood that at least one locator is connected to the server, and the server is receiving the at least one locator. The initial second position information and the second relative position information sent by each locator in the locator save the initial second position information and the second relative position information sent by each locator in the at least one locator into the position information set.

The location information refers to the location, the occupied place, or the orientation, and the second initial location information refers to the initial location stored in the location information set and corresponding to the initial location of the locator. In this embodiment, it can be understood that the second initial position information may be the initial position, the initial place occupied, or the initial position of the locator when the locator is first positioned. The second initial position information may usually be the positioning The latitude, longitude, coordinates, direction, azimuth, etc. indicated by the initial position of the device.

The relative position information refers to the relative position determined by the position of its reference point, and the second relative position information can be understood as the relative position of the locator relative to the locator stored in the position information set after the target moment. The relative position corresponding to the initial position. Generally, the second relative position information may be the distance, angle, azimuth, latitude and longitude relative to the initial position of the locator.

Specifically, the first initial position information and the first relative position information of the locator received by the server usually have a position correspondence relationship, that is, the first initial position information corresponds to the first relative position information, and the server position information is stored in the collection There are second initial position information and second relative position information. In the position information set, the second initial position information and the second relative position information have a position correspondence relationship, and the server obtains the first position information stored in the position information set. 2. After the initial position information and the second relative position information, the correspondence between the set elements (first initial position information, second initial position information, first relative position information, second relative position information, etc.) in the position information set Perform confusion processing, such as establishing the first initial position information and the second relative position information, establishing the corresponding relationship between the first relative position information and the second initial position information, etc., to obtain the confusion processing that contains the first initial position information and all the information. The first relative position information, the second initial position information, and the position information set of the second relative position information.

Step 103: Receive the location acquisition request of the locator sent by the user terminal, and send the obfuscation processed location information set to the user terminal, so that the user terminal can understand the obfuscation processed location information set Perform de-obfuscation processing.

The location acquisition request is used to acquire the location information of the locator at a certain point in time and/or time period, and the location information is used to characterize the location and orientation of the locator. Generally, the location information may be It is in the form of absolute position, such as coordinates, latitude and longitude, etc., and may be in the form of relative position, that is, using a certain position as a reference point to indicate the position of the locator, and so on. In this embodiment, the position information obtaining request is used to obtain the first initial position information and the first relative position information of the locator from the server.

Specifically, when receiving the position acquisition request of the locator sent by the user terminal, the server sends the obfuscated position information set to the user terminal, where the position information set includes the first initial position information , The first relative position information, the second initial position information, and the second relative position information, the user terminal may perform de-obfuscation processing on the position information set after receiving the position information set, the The de-obfuscation process is an inverse process of performing obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information. After the collection is subjected to de-obfuscation processing, the first initial position information in the position information collection and the first relative position information corresponding to the first initial position information can be obtained.

Optionally, the server receives the location acquisition request of the locator sent by the user terminal, and sends the obfuscated location information set to the user terminal based on the current communication connection quality between the server and the user terminal. (For example, uplink and downlink rate, frame loss rate, time delay, etc.), after slicing or compressing the position information set, the position information set is sent to the user terminal.

Optionally, the server may send the location information set to the user terminal after slicing or compressing the location information set based on the current load status of the user terminal (CPU load, background thread, resource pool occupancy rate, etc.), and many more.

Please refer to FIG. 4, which is a schematic flowchart of another embodiment of a location acquisition method proposed by the present application. In this embodiment, the location acquisition method is applied to the server as an example. The location acquisition method may include the following steps:

Step 201: Receive a connection request from the user terminal, obtain the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request, and establish a connection relationship between the locator identifier and the terminal identifier.

The connection request is used to instruct the server to perform a request for connection, pairing, and binding operations, and the server may establish a connection relationship between the user terminal and the locator based on the connection request.

The locator identifier may be information such as the MAC address, IP address, digital certificate, and ID of the locator.

The terminal identification may be information such as the MAC address, IP address, digital certificate, and ID of the user terminal.

Specifically, after the server receives the connection request of the user terminal, the server may start to establish the connection relationship between the locator and the user terminal based on the wireless connection protocol. In the process of establishing the connection, the data communication is defined Various aspects of the communication interface, including the type of communication interface, the wireless connection protocol used, the data framework implemented, the type of communication wiring, etc., the commonly used wireless connection protocol can be Bluetooth low energy wireless protocol, WIFI protocol, ZigBee protocol, infrared Communication protocol, ultra-wideband (UWB) communication protocol, etc. In the process of establishing the connection, the server may obtain the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request, and establish the locator and the terminal identifier based on the locator identifier and the terminal identifier. The mapping relationship between the user terminal and the mapping relationship between the locator and the user terminal are stored in the local storage space to complete the connection establishment process.

Optionally, based on the locator identifier of the locator and the terminal identifier of the user terminal, the user terminal can directly establish a connection with the locator. After the connection is established, the user terminal sends the locator identifier and terminal identifier to The server saves and completes the process of establishing a connection.

Step 202: Receive the first initial position information generated by the preset public key encryption and sent by the locator at the target time.

The preset public key is used in the key to encrypt and transmit the first initial location information. Generally, the preset public key corresponds to the preset private key, and the public key and the private key are used to encrypt and decrypt the transmission information. It is generally called asymmetric encryption method. In asymmetric encryption method, as shown in Figure 5, Figure 5 is a scene diagram of an asymmetric encryption method. The encryption party-locator uses the public key to perform encrypted transmission of the initial position information. Encrypted and sent to the decryptor-user terminal by the server. The user terminal uses the preset private key to decrypt the encrypted information to obtain the initial location information. During the entire information transmission process, the private key is used for electronic devices other than the user terminal. Invisible, the transmission information encrypted by the public key can only be decrypted with the private key.

Wherein, the preset public key may be distributed based on an asymmetric encryption algorithm, and the asymmetric encryption algorithm includes but is not limited to RSA encryption algorithm, Elgamal encryption algorithm, knapsack algorithm, Rabin encryption algorithm, ECC (elliptic curve encryption algorithm) and many more.

Specifically, the position report function of the locator is triggered, the locator obtains the current initial position of the locator at the target time (the time corresponding to the trigger of the position report function of the locator), and obtains a preset public key based on In an asymmetric encryption mode, the initial position where the locator is currently located is encrypted by using the preset public key to generate encrypted first initial position information. The locator sends the first initial location information to the server. At this time, the server receives the first initial location information that is encrypted and generated by using a preset public key and sent by the locator at the target time.

Step 203: Receive first relative position information encrypted and generated by the locator using a preset encryption algorithm after the target time.

Specifically, after the locator encrypts and sends the first initial location information to the server at the target time, the locator obtains the geographic location of the locator at a certain time interval (for example, 2 seconds) at the next time interval, and uses the location of the locator The initial position is the reference point, the relative position of the geographic location where the locator is located relative to the initial position is calculated, and the relative position is encrypted by using a preset encryption algorithm to generate first relative position information, and the locator calculates the first relative position information. The location information is sent to the server. At this time, the server can receive the first relative location information encrypted and generated by the locator using a preset encryption algorithm after the target time.

Step 204: Obtain the second initial position information and the second relative position information from the saved position information set.

For details, refer to step 103, which will not be repeated here.

Step 205: Establish a corresponding relationship between the first initial position information and the second relative position information, and establish a corresponding relationship between the first relative position information and the second initial position information, to obtain the confusingly processed position Information collection.

Specifically, the server is connected to at least one locator, and the server receives the initial second position information and the second relative position information sent by each locator in the at least one locator, and sends each locator in the at least one locator. The initial second position information and the second relative position information of is saved in the position information set.

Optionally, the second initial position information and the second relative position information may be pre-cached by the server, and may be sent and received by a locator other than the locator indicated by the first initial position information and the first relative position information. The saved information may be virtually generated by a position information generator based on the initial position information and relative position information in the existing position information set, and so on.

In this embodiment, the obfuscation processing refers to the obfuscation processing of the corresponding relationship between the first initial position information and the first relative position information, and the second initial position information and the second relative position information. The confusion processing may be calculation based on a confusion matrix to confuse the correspondence between the first initial position information and the first relative position information, and the second initial position information and the second relative position information.

Specifically, after the server obtains the second initial position information and the second relative position information from the saved position information set, the server combines the first initial position information, the first relative position information, and the second initial position information. And the second relative position information is input into a preset confusion matrix for calculation to establish the correspondence between the first initial position information and the second relative position information, and establish the first relative position information and The corresponding relationship of the second initial position information outputs the position information set after the preset confusion matrix confusion processing.

In a feasible implementation manner, the obfuscation processing may be obtained based on a pre-trained obfuscation model, and the server combines the first initial position information, the first relative position information, the second initial position information, and the The second relative position information is input to the confusion model for confusion processing, and the position information set after the confusion processing is output.

Optionally, the confusion model may be trained using a large number of test samples. For example, the confusion model may be based on a convolutional neural network (Convolutional Neural Network, CNN) model, a deep neural network (Deep Neural Network, DNN) model, At least one of Recurrent Neural Networks (RNN), models, embedding models, Gradient Boosting Decision Tree (GBDT) models, Logistic Regression (LR) models, The confusion model is trained based on the labeled sample data, and a trained confusion model can be obtained.

In a specific implementation scenario, as shown in FIG. 6, FIG. 6 is a schematic diagram of a scene of obfuscation processing. The server obtains the second initial position information and the second relative position information from the stored position information set. The position information set includes a plurality of second initial position information and a plurality of second relative position information. Wherein, each of the plurality of second initial position information corresponds to the corresponding second relative position information, for example, the second initial position information 1 corresponds to the second relative position information 1, and the second initial position information 2 corresponds to The second relative position information 2, etc., in addition, the correspondence between the plurality of second initial position information and the plurality of second relative position information in the position information set may be a correspondence relationship after obfuscation processing.

Based on a preset confusion rule, the server inputs the first initial position information, the first relative position information, all the acquired second initial position information, and the second relative position information into the confusion model for confusion processing, and outputs the confusion processing. As shown in FIG. 6, in the position information set after obfuscation processing, the first initial position information corresponds to the second relative position information 2, and the first relative position information corresponds to the The correspondence of the second initial position information 2 is described.

Step 206: Receive the location acquisition request of the locator sent by the user terminal, and send the obfuscated location information set to the user terminal, so that the user terminal can understand the obfuscated location information set Perform de-obfuscation processing.

For details, refer to step 103, which will not be repeated here.

Please refer to FIG. 7, which is a schematic flowchart of a method for obtaining a location according to an embodiment of this application. In this embodiment, the location acquisition method is applied to the user terminal as an example. The location acquisition method may include the following steps:

Step 301: Listen to the connection instruction input for the locator, generate a connection request corresponding to the connection instruction, and send the connection request to the server, the connection request carrying the locator identifier of the locator and The terminal identifier of the user terminal.

Specifically, the user terminal displays an icon for connecting the locator on the current display interface, the user terminal includes a touch screen, and the touch screen has a function of sensing a user's touch operation. The structure of the touch screen includes at least 4 parts: the screen glass layer, the sensor film, the display panel layer, and the controller board. The sensor film has a touch sensor layer and contains a variety of sensors, such as pressure sensors, position sensors, etc. When the user touches the icon used for locator connection on the current display interface of the user terminal, the touch screen of the user terminal can obtain the touch position parameter of the user terminal through the sensor. Then the position parameter is processed, and it is recognized that the icon for locator connection on the display interface corresponding to the position parameter is touched. When the user touches the icon for locator connection, The user terminal monitors the connection instruction input to the locator.

For example: as shown in Figure 8, the interface in Figure 8 is a display interface for the user terminal to connect to the locator. The interface in Figure 8 contains multiple icons for connecting to the locator. When the user selects the locator on the user terminal screen Icon-locator 1, specifically by touching the screen glass layer of the touch screen of the user terminal, the touch screen of the user terminal obtains the position parameters of its touch "locator 1" icon through the position sensor in the sensor film, and then The position parameter is processed, and the instruction to connect to the "locator 1" input by the user is recognized. At this time, the user terminal detects the user's connection instruction for the locator 1 on the current display interface. By reading and executing the machine executable instruction corresponding to the control logic corresponding to the connection "locator 1", the next step of generating the connection request corresponding to the connection instruction is performed.

After the user terminal monitors the connection instruction input for the locator, it generates a connection request corresponding to the connection instruction. The connection request carries the locator identifier of the locator and the terminal identifier of the user terminal, and the The connection request is sent to the server.

Optionally, the connection instruction may be completed through an external device. For example, the user may select the icon of the locator on the display interface of the user terminal through the mouse connected to the user terminal and input the connection instruction; it may be the connection instruction input by the user through the connection to the user terminal. Keyboard or touchpad input corresponding instructions; it can be the user's instructions to connect to a certain locator through voice input (for example, the voice input connection is set to 1 etc.; it can be the user through the camera to collect gesture control instructions to complete the connection specific scheduled operation ,and many more.

In a feasible implementation manner, the locator has a connection code, and the connection code can be in the form of a two-dimensional code, a small program code, a string of random numbers, letter combinations, etc., when the user needs to communicate with the locator through the user terminal When establishing a connection, the user terminal can turn on the camera function, scan the connection code on the locator, and obtain the locator identifier of the locator by identifying the connection code. The user terminal generates a connection request corresponding to the connection instruction, and the pairing request carries the locator identifier of the locator and the terminal identifier of the user terminal.

Step 302: When the position query instruction of the locator is monitored, send the position acquisition request of the locator to the server.

Specifically, an icon for locator query is displayed on the display interface of the user terminal. When the user touches the icon for locator query on the display interface of the user terminal, the touch screen of the user terminal can pass through The sensor obtains the position parameter of its touch. Then, the position parameter is processed, and it is recognized that the icon for locator query on the display interface corresponding to the position parameter is touched. When the user touches the icon for the locator query, the user terminal listens to the position query command input for the locator, and at this time, the user terminal sends the position acquisition request of the locator to the server for Obtain the position information of the locator.

Step 303: Receive an obfuscated location information set sent by the server based on the location acquisition request, where the location information set includes the first initial location information, the first relative location information, and the second initial location information And the second relative position information.

Specifically, the user terminal sends the position acquisition request of the locator to the server. After receiving the position acquisition request, the server sends the obfuscated position information collection to the user terminal in response to the position acquisition request. That is, the obfuscated location information set sent by the server based on the location acquisition request is received, and the location information set includes the first initial location information, the first relative location information, the second initial location information, and The second relative position information.

Step 304: Perform de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to obtain the de-obfuscated first Initial position information and the first relative position information.

Specifically, the user terminal, based on a preset de-obfuscation rule, in the position information set after obtaining the obfuscation processing, compares the first initial position information, the first relative position information, and the first position information in the position information set. 2. Perform de-obfuscation processing on the initial position information and the second relative position information. In the de-obfuscation process, the user terminal establishes the corresponding relationship between the first initial position information and the first relative position information based on a preset de-obfuscation rule Establish a correspondence between the second initial position information and the second relative position information to complete the de-obfuscation processing.

Specifically, after completing the de-obfuscation process, the user terminal acquires the first initial location information and the first initial location information based on the correspondence between the first initial location information and the first relative location information The corresponding first relative position information.

Optionally, the preset de-obfuscation rule may be to combine the set elements in the position information set (the first initial position information, the first relative position information, the second initial position information, and the second relative position information) ) Input into the inverse confusion matrix, which may be inputting the set elements in the position information set into the de-obfuscation model for de-obfuscation processing, or may use the de-obfuscation algorithm to perform de-obfuscation calculation on the set elements in the position information set, Among them, the commonly used de-obfuscation algorithms may be inverse algorithms based on dynamic allocation, decryption algorithms based on differential privacy, inverse algorithms based on adaptive allocation, and so on.

In a feasible implementation manner, the server inputs the first initial position information, the first relative position information, the second initial position information, and the second relative position information into a preset confusion matrix. Obfuscation processing, sending the obfuscated location information set to the user terminal. After receiving the location information set, the user terminal combines the first initial location information, the first relative location information, and the location information in the location information set. The second initial position information and the second relative position information are input into a preset inverse confusion matrix for de-obfuscation, thereby establishing the corresponding relationship between the first initial position information and the first relative position information, and establishing all The corresponding relationship between the second initial position information and the second relative position information is used to complete the de-obfuscation processing.

Step 305: Use a preset private key to decrypt the first initial position information to obtain the first initial position corresponding to the first initial position information, and use a preset decryption algorithm to decrypt the first relative position information. Obtain the first relative position corresponding to the first relative position information.

Specifically, the locator uses a pre-made public key to encrypt the first initial position to generate the first initial position information, which is sent to the user terminal by the server, and the user terminal uses the preset private key to decrypt the encrypted information to obtain the initial position Information. During the entire information transmission process, the private key is invisible to electronic devices other than the user terminal, and its first initial location information encrypted by the public key can only be decrypted with the private key on the user terminal. The user terminal uses the pre-made private key to decrypt the first initial location information to obtain the first initial location corresponding to the first initial location information.

Specifically, the locator uses a preset encryption algorithm to encrypt the first relative position to generate the first relative position information, which is sent to the user terminal by the server, and after the user terminal receives the first relative position information, it uses preset decryption The algorithm decrypts the first relative position information to obtain the first relative position corresponding to the first relative position information.

Step 306: Using the first initial position as a reference, calculate the displacement position corresponding to the first relative position, and generate a displacement trajectory of the locator based on the first initial position and the displacement position.

Specifically, the user terminal decrypts the first initial position information and the first relative position information to obtain the first initial position and the first relative position, and uses the first initial position as a reference point to calculate the first relative position relative to the The displacement position of the reference point, where the first relative position corresponding to the first relative position information may be multiple, the first initial position and the time point indicated by the displacement position are acquired, and the first relative position is determined according to the sequence of the time points. An initial position and a displacement position are connected in pairs to generate the displacement trajectory of the locator.

Optionally, the user terminal pre-stores an electronic map, and the range of the electronic map covers the activity range of the user carrying the locator. The user terminal can mark the displacement trajectory of the locator at the corresponding position on the electronic map. When the user terminal makes the mark, it can mark relevant voice data, image data of the current position, time data, text data and other types of data based on the labeling rules. One or more of them are marked on the electronic map.

In a specific implementation scenario, the user terminal decrypts the first initial position information to obtain the first initial position-longitude and latitude coordinates A(a0, b0), and the user terminal decrypts the first relative position information to obtain the first relative position. The first relative position can correspond to multiple relative position coordinates, such as B1 (a1, b1), B2 (a2, b2), B3 (a3, b3) ~ Bn (an, bn), the relative position coordinate calculation formula can be Yes: relative position = displacement position-initial position, then the user terminal uses the latitude and longitude coordinates A (a0, b0) of the initial position as the reference, and the calculated displacement positions are: B1(a1+a0, b1+b0), B2( a2+a0, b2+b0), B3(a3+a0, b3+b0) ~ Bn(an+a0, bn+b0), the user terminal will, based on the time sequence corresponding to each point, assign the first corresponding to the adjacent time point An initial position and a displacement position are connected in pairs to generate the displacement trajectory of the locator, and the displacement trajectory is marked on a pre-stored electronic map. As shown in Figure 9, Figure 9 is a schematic diagram of the displacement track on the user terminal displayed on the electronic map. The A(a0, b0), B1(a1+a0, b1+b0), B2(a2+a0, b2+ b0), B3 (a3+a0, b3+b0) ~ Bn (an+a0, bn+b0) corresponding points on the electronic map can be seen in Figure 9. The dotted line connecting the points is the displacement track of the positioner.

In the embodiment of the present application, when the user terminal monitors the location query instruction of the locator, it sends the location acquisition request of the locator to the server, and receives the obfuscated location information sent by the server based on the location acquisition request. The set of position information includes the first initial position information, the first relative position information, the second initial position information, and the second relative position information. The position information, the second initial position information, and the second relative position information are subjected to de-obfuscation processing to obtain the first initial position information and the first relative position information after the de-obfuscation processing. By performing de-obfuscation processing on the obfuscated location information set, and then decrypting the first initial location information and the first relative location information after the de-obfuscation processing, respectively, the location information sent by the server can be received at the user terminal When the collection is intercepted, the risk of cracking the first initial location information and/or the first relative location information is reduced, and the privacy of the user is improved.

The following are device embodiments of this application, which can be used to execute the method embodiments of this application. For details not disclosed in the device embodiment of this application, please refer to the method embodiment of this application.

Please refer to FIG. 10, which shows a schematic structural diagram of a location acquiring apparatus provided by an exemplary embodiment of the present application. The location acquisition device can be implemented as all or a part of the device through software, hardware or a combination of the two. The device 1 includes a location information receiving module 11, a location information confusion module 12 and a location information sending module 13.

The position information receiving module 11 is configured to receive the first initial position information sent by the locator at the target time, and receive the first relative position information sent by the locator with respect to the first initial position information after the target time;

The location information obfuscation module 12 is configured to obtain second initial location information and second relative location information from the saved location information set, and compare the first initial location information, the first relative location information, and the second Performing obfuscation processing on the initial position information and the second relative position information to obtain an obfuscated position information set;

The location information sending module 13 is configured to receive the location acquisition request of the locator sent by the user terminal, and send the location information set after the obfuscation processing to the user terminal, so that the user terminal can process the obfuscation The subsequent location information collection is processed for de-obfuscation.

Optionally, the location information receiving module 11 is specifically configured to:

Receiving the first initial position information encrypted and generated using a preset public key sent by the locator at the target time, and receiving the first relative position information encrypted and generated by the locator using a preset encryption algorithm after the target time.

Optionally, the location information obfuscation module 12 is specifically used for:

The correspondence relationship between the first initial position information and the second relative position information is established, and the correspondence relationship between the first relative position information and the second initial position information is established, so as to obtain a position information set after obfuscation processing.

Optionally, as shown in FIG. 11, the device 1 further includes:

The connection relationship establishment module 14 is configured to receive the connection request of the user terminal, obtain the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request, and establish the locator identifier and the terminal identifier The connection relationship.

It should be noted that when the location acquisition device provided in the above embodiment executes the location acquisition method, only the division of the above functional modules is used as an example. In practical applications, the above functions can be allocated by different functional modules as needed. , Divide the internal structure of the device into different functional modules to complete all or part of the functions described above. In addition, the location acquisition device provided in the foregoing embodiment and the location acquisition method embodiment belong to the same concept, and the implementation process of the implementation process is detailed in the method embodiment, which will not be repeated here.

The serial numbers of the foregoing embodiments of the present application are only for description, and do not represent the superiority or inferiority of the embodiments.

In this embodiment, the first initial position information sent by the locator at the target time is received, and the first relative position information sent by the locator relative to the first initial position information after the target time is received. The second initial position information and the second relative position information are acquired from the saved position information set, and the first initial position information, the first relative position information, the second initial position information, and the second relative position Information is obfuscated to obtain an obfuscated location information set, receive the location acquisition request of the locator sent by the user terminal, and send the obfuscated location information set to the user terminal, so that the user The terminal performs de-obfuscation processing on the obfuscated location information set. By obfuscating the correspondence between the second initial position information, the second relative position information, and the first initial position information and the first relative position information, the position of the locator on the server When the information is leaked, the difficulty of cracking the location information is increased, thereby reducing the risk of the user’s location information leakage. At the same time, the locator sends the first initial location information encrypted by the public key and the first location information encrypted by the preset encryption algorithm to the server in turn. In the relative position information process, the risk of cracking after the first initial position information and/or the first relative position information is intercepted can be reduced, and the privacy and security of the user can be improved.

Please refer to FIG. 12, which shows a schematic structural diagram of a location obtaining apparatus provided by an exemplary embodiment of the present application. The location acquisition device can be implemented as all or a part of the device through software, hardware or a combination of the two. The device 2 includes: a query command monitoring module 21, a location information receiving module 22, and a location information de-obfuscation module 23.

The query instruction monitoring module 21 is configured to send a location acquisition request of the locator to the server when the location query instruction of the locator is monitored;

The location information receiving module 22 is configured to receive a set of obfuscated location information sent by the server based on the location acquisition request, where the location information set includes the first initial location information, the first relative location information, Second initial position information and second relative position information;

The position information de-obfuscation module 23 performs de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to obtain the de-obfuscated The first initial position information and the first relative position information.

Optionally, as shown in FIG. 14, the device 2 further includes:

The connection request sending module 24 is configured to monitor the connection instruction input for the locator, generate a connection request corresponding to the connection instruction, and send the connection request to the server, and the connection request carries the locator The locator ID of the user terminal and the terminal ID of the user terminal.

Optionally, as shown in FIG. 13, the location information de-obfuscation module 23 further includes:

The position information de-obfuscation unit 231 is configured to establish a correspondence between the first initial position information and the first relative position information, and establish a correspondence between the second initial position information and the second relative position information.

The position information acquiring unit 232 is configured to acquire the first initial position information and the first initial position information corresponding to the first initial position information based on the corresponding relationship between the first initial position information and the first relative position information. Relative location information.

Optionally, as shown in FIG. 14, the device 2 further includes:

The location information decryption module 25 is configured to decrypt the first initial location information using a preset private key to obtain the first initial location corresponding to the first initial location information, and use a preset decryption algorithm to decrypt the first relative location information. Decrypting the position information to obtain the first relative position corresponding to the first relative position information;

The displacement trajectory generating module 26 is configured to calculate the displacement position corresponding to the first relative position based on the first initial position, and generate the displacement of the locator based on the first initial position and the displacement position Trajectory.

In this embodiment, by performing de-obfuscation processing on the obfuscated position information set, and then decrypting the first initial position information and the first relative position information after the de-obfuscation processing, the user terminal can be When the collection of location information sent by the receiving server is intercepted, the risk of cracking the first initial location information and/or the first relative location information is reduced, and the user's privacy and security are improved.

The embodiment of the present application also provides a computer storage medium. The computer storage medium may store a plurality of instructions, and the instructions are suitable for being loaded by a processor and executed as described in the embodiments shown in FIGS. 1 to 9 above. For the location acquisition method, refer to the specific description of the embodiment shown in FIG. 1 to FIG. 9 for the specific execution process, which will not be repeated here.

The present application also provides a computer program product that stores at least one instruction, and the at least one instruction is loaded by the processor and executed as described in the above-mentioned embodiment shown in FIG. 1 to FIG. 9. For the specific execution process of the method, please refer to the specific description of the embodiment shown in FIG. 1 to FIG. 9, which will not be repeated here.

Please refer to FIG. 15, which provides a schematic structural diagram of an electronic device according to an embodiment of the application. As shown in FIG. 15, the electronic device 1000 may include: at least one processor 1001, at least one network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.

Among them, the communication bus 1002 is used to implement connection and communication between these components.

The user interface 1003 may include a display (Display) and a camera (Camera), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.

Among them, the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).

The processor 1001 may include one or more processing cores. The processor 1001 uses various excuses and lines to connect various parts of the entire server 1000, and executes the server by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1005, and calling data stored in the memory 1005. Various functions and processing data of 1000. Optionally, the processor 1001 may adopt at least one of digital signal processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). A kind of hardware form to realize. The processor 1001 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a modem, and the like. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is used to render and draw the content that needs to be displayed on the display; the modem is used to process wireless communication. It is understandable that the above-mentioned modem may not be integrated into the processor 1001, but may be implemented by a chip alone.

The memory 1005 may include random access memory (RAM) or read-only memory (Read-Only Memory). Optionally, the memory 1005 includes a non-transitory computer-readable storage medium. The memory 1005 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 1005 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing the operating system and instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), Instructions used to implement the foregoing method embodiments, etc.; the storage data area can store data and the like involved in the foregoing method embodiments. Optionally, the memory 1005 may also be at least one storage device located far away from the foregoing processor 1001. As shown in FIG. 15, the memory 1005, which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a location acquisition application program.

In the electronic device 1000 shown in FIG. 15, the user interface 1003 is mainly used to provide an input interface for the user to obtain data input by the user; and the processor 1001 may be used to call a location stored in the memory 1005 to obtain an application program, and specifically Do the following:

In an embodiment, the processor 1001 executes the receiving of the first initial position information sent by the locator at the target time, and receives the first initial position information sent by the locator after the target time. When the first relative position information of, specifically perform the following operations:

Receiving the first initial position information that is encrypted and generated by using a preset public key and is sent by the locator at the target time;

Receiving the first relative position information encrypted and generated by the locator using a preset encryption algorithm after the target time.

In one embodiment, the processor 1001 is performing the obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information , When the obfuscated location information collection is obtained, the following operations are specifically performed:

In an embodiment, the processor 1001 further performs the following operations before performing the receiving of the first initial position information and the first relative position information sent by the first terminal:

Receiving the connection request of the user terminal, and obtaining the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request;

Establishing a connection relationship between the locator identifier and the terminal identifier.

When the position query instruction of the locator is monitored, sending the position acquisition request of the locator to the server;

In an embodiment, the processor 1001 further performs the following operations before sending the position acquisition request of the locator to the server when the position query instruction of the locator is monitored:

Monitor the connection instruction input for the locator, generate a connection request corresponding to the connection instruction, and send the connection request to the server, the connection request carrying the locator identifier of the locator and the user The terminal ID of the terminal.

In one embodiment, the processor 1001 is performing the de-obfuscation of the first initial position information, the first relative position information, the second initial position information, and the second relative position information. Processing, when the first initial position information and the first relative position information after the de-obfuscation processing are obtained, the following operations are specifically performed:

A correspondence relationship between the first initial position information and the first relative position information is established, and a correspondence relationship between the second initial position information and the second relative position information is established.

Based on the correspondence between the first initial position information and the first relative position information, the first initial position information and the first relative position information corresponding to the first initial position information are acquired.

In an embodiment, when the processor 1001 executes the location acquisition method, it further executes the following steps:

Use a preset private key to decrypt the first initial location information to obtain the first initial location corresponding to the first initial location information, and use a preset decryption algorithm to decrypt the first relative location information to obtain the A first relative position corresponding to the first relative position information;

Using the first initial position as a reference to calculate the displacement position corresponding to the first relative position;

Based on the first initial position and the displacement position, a displacement trajectory of the locator is generated.

In this embodiment, when the user terminal monitors the position query instruction of the locator, it sends the position acquisition request of the locator to the server, and receives the obfuscated position information sent by the server based on the position acquisition request. The set of position information includes the first initial position information, the first relative position information, the second initial position information, and the second relative position information. The position information, the second initial position information, and the second relative position information are subjected to de-obfuscation processing to obtain the first initial position information and the first relative position information after the de-obfuscation processing. By performing de-obfuscation processing on the obfuscated location information set, and then decrypting the first initial location information and the first relative location information after the de-obfuscation processing, respectively, the location information sent by the server can be received at the user terminal When the collection is intercepted, the risk of cracking the first initial location information and/or the first relative location information is reduced, and the privacy of the user is improved.

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing relevant hardware through a computer program. The program can be stored in a computer readable storage medium, and the program can be stored in a computer readable storage medium. During execution, it may include the procedures of the above-mentioned method embodiments. Wherein, the storage medium can be a magnetic disk, an optical disc, a read-only storage memory or a random storage memory, etc. What has been disclosed above are only preferred embodiments of the present application, and of course the scope of rights of the present application cannot be limited by this. Therefore, equivalent changes made according to the claims of this application are still within the scope of this application.

Claims

A location acquisition method applied to a server, characterized in that the method includes:

Receiving first initial position information sent by a locator at a target time, and receiving first relative position information sent by the locator with respect to the first initial position information after the target time;

Obtain the second initial position information and the second relative position information from the saved position information set, and compare the first initial position information, the first relative position information, the second initial position information, and the second Perform obfuscation processing on the relative position information to obtain a collection of obfuscated position information;

Receive the location acquisition request of the locator sent by the user terminal, and send the obfuscated location information set to the user terminal, so that the user terminal can de-obfuscate the obfuscated location information set deal with.
The method according to claim 1, wherein the receiving first initial position information sent by the locator at the target time, and receiving the first initial position information sent by the locator after the target time The first relative position information of includes:

Receiving the first initial position information that is encrypted and generated by using a preset public key and is sent by the locator at the target time;

Receiving the first relative position information encrypted and generated by the locator using a preset encryption algorithm after the target time.
4. The method according to claim 1, wherein the first initial position information, the first relative position information, the second initial position information, and the second relative position information are obfuscated , Get the location information collection after obfuscation, including:

The correspondence relationship between the first initial position information and the second relative position information is established, and the correspondence relationship between the first relative position information and the second initial position information is established, so as to obtain a position information set after obfuscation processing.
The method according to claim 1, wherein the receiving the first terminal sent by the first terminal

Before the initial position information and the first relative position information, it further includes:

Receiving the connection request of the user terminal, and obtaining the locator identifier of the locator and the terminal identifier of the user terminal carried in the connection request;

Establishing a connection relationship between the locator identifier and the terminal identifier.
A location acquisition method applied to a user terminal, characterized in that the method includes:

When the position query instruction of the locator is monitored, sending the position acquisition request of the locator to the server;

Receive the obfuscated location information set sent by the server based on the location acquisition request, where the location information set includes the first initial location information, the first relative location information, the second initial location information, and the second Relative position information;

Perform de-obfuscation processing on the first initial position information, the first relative position information, the second initial position information, and the second relative position information to obtain the first initial position information after the de-obfuscation processing And the first relative position information.
The method according to claim 5, wherein when the position query instruction of the locator is monitored, before sending the position acquisition request of the locator to the server, the method further comprises:

Monitor the connection instruction input for the locator, generate a connection request corresponding to the connection instruction, and send the connection request to the server, the connection request carrying the locator identifier of the locator and the user The terminal ID of the terminal.
The method according to claim 5, wherein the de-obfuscation of the first initial position information, the first relative position information, the second initial position information, and the second relative position information Processing to obtain the first initial position information and the first relative position information after de-obfuscation processing includes:

A correspondence relationship between the first initial position information and the first relative position information is established, and a correspondence relationship between the second initial position information and the second relative position information is established.

Based on the correspondence between the first initial position information and the first relative position information, the first initial position information and the first relative position information corresponding to the first initial position information are acquired.
The method according to claim 7, wherein the method further comprises:

Use a preset private key to decrypt the first initial location information to obtain the first initial location corresponding to the first initial location information, and use a preset decryption algorithm to decrypt the first relative location information to obtain the A first relative position corresponding to the first relative position information;

Using the first initial position as a reference to calculate the displacement position corresponding to the first relative position;

Based on the first initial position and the displacement position, a displacement trajectory of the locator is generated.
A computer storage medium, wherein the computer storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the method steps according to any one of claims 1 to 4 or 5 to 8.
An electronic device, comprising: a processor and a memory; wherein the memory stores a computer program, and the computer program is adapted to be loaded by the processor and executed as claimed in claims 1 to 4 or 5 to 8. Any one of the method steps.