CN106792545B - Data transmission method, mobile terminal and server - Google Patents

Abstract

The present invention is applicable to the field of network technology, and provides a data transmission method, comprising: submitting a target search request including search conditions to a server, so that the server obtains location information of at least one second mobile terminal that satisfies the search conditions; The location information of at least one second mobile terminal is sent, and the location information of at least one second mobile terminal is displayed on the map of the first mobile terminal; according to the target device selected by the user on the map, the server sends a For the communication request of connection, after receiving the confirmation information of connection with the target device fed back by the server, data transmission is performed with the target device. The embodiment of the present invention ensures that the search range for the second mobile terminal is not limited by the signal transmission distance of the first mobile terminal; the user can transmit data to strangers in the vicinity anytime and anywhere, which satisfies the user's social needs, Expanded the social function of map software.

Description

A data transmission method, mobile terminal and server

technical field

The invention belongs to the field of network technology, and in particular relates to a data transmission method, a mobile terminal and a server.

Background technique

With the rapid development of the mobile Internet, there are more and more application scenarios for data transmission between mobile terminals. At present, there are four main ways for mobile terminals to transmit data: 1. Make the sender and receiver of data access the same wireless local area network; 2. Make one of the devices turn on the wireless hotspot function, so that other devices can connect to 3. Enable the Bluetooth function on both the sender and receiver of the data, and transmit data through Bluetooth technology; 4. After searching for the other party's application account based on third-party software, the data is transmitted.

The current data transmission methods based on mobile terminals all need to know the other party's application account or device account in advance to transmit data to the other party's device, and cannot transmit data to strangers in the vicinity anytime, anywhere, and cannot meet the growing social needs of users.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a data transmission method, a mobile terminal and a server, aiming at solving the problem that in the prior art, data cannot be transmitted to strangers in the vicinity anytime and anywhere, and users cannot meet the increasing social needs of users. question.

A first aspect of the embodiments of the present invention provides a data transmission method, which is applied to a first mobile terminal, including:

Submitting a target search request containing search conditions to the server, so that the server obtains location information of at least one second mobile terminal that satisfies the search conditions;

receiving the location information of the at least one second mobile terminal issued by the server, and displaying the location information of the at least one second mobile terminal on a map of the first mobile terminal;

Send a communication request to the server to connect with the target device according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals;

After receiving the confirmation information fed back by the server to connect with the target device, perform data transmission with the target device.

In a second aspect of the embodiments of the present invention, a data transmission method is provided, applied to a server, including:

receiving a target search request including search conditions uploaded by the first mobile terminal;

obtaining location information of at least one second mobile terminal that satisfies the search condition;

Return the location information of the at least one second mobile terminal to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal on the first mobile terminal. on the map;

When receiving a communication request sent by the first mobile terminal to connect with a target device, request the target device to establish a communication connection with the first mobile terminal, wherein the target device is sent by the first mobile terminal selected from the map, and the target device is one or more of the second mobile terminals;

After receiving the connection confirmation information returned by the target device, the connection confirmation information is fed back to the first mobile terminal, so that the first mobile terminal and the target device perform data transmission.

In a third aspect of the embodiments of the present invention, a mobile terminal is provided, including:

a submitting unit, configured to submit a target search request including a search condition to a server, so that the server obtains the location information of at least one second mobile terminal that satisfies the search condition;

a receiving unit, configured to receive the location information of the at least one second mobile terminal issued by the server, and display the location information of the at least one second mobile terminal on a map of the first mobile terminal;

a sending unit, configured to send a communication request to the server to connect with the target device according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals;

The transmission unit is configured to perform data transmission with the target device after receiving the confirmation information fed back by the server to connect with the target device.

A fourth aspect of the embodiments of the present invention provides a server, including:

a receiving unit, configured to receive a target search request including search conditions uploaded by the first mobile terminal;

an acquiring unit, configured to acquire location information of at least one second mobile terminal that satisfies the search condition;

A returning unit, configured to return the location information of the at least one second mobile terminal to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal on the first mobile terminal on the map of the first mobile terminal;

a requesting unit, configured to request the target device to establish a communication connection with the first mobile terminal when receiving a communication request sent by the first mobile terminal to connect with a target device, wherein the target device is The user of the first mobile terminal selects in the map, and the target device is one or more of the second mobile terminals;

The feedback unit is configured to feed back the connection confirmation information to the first mobile terminal after receiving the connection confirmation information returned by the target device, so that the first mobile terminal and the target device perform data transmission.

This embodiment of the present invention implements data transmission between devices at both ends based on map software. Based on the search conditions uploaded by the first mobile terminal, the server screens the second mobile terminals that satisfy the search conditions, ensuring that the second mobile terminal meets the search conditions. The search range of the mobile terminal can not be limited by the signal transmission distance of the first mobile terminal; the first mobile terminal can intuitively view and select the target device from the currently displayed map according to the location information of the second mobile terminal returned by the server. The data transmission is completed, the operation is simple, and the application scenarios of map software are expanded. The embodiment of the present invention enables the user to transmit data to the second mobile terminal in the vicinity anytime, anywhere, and to communicate with strangers using the second mobile terminal. Therefore, the user's growing social needs are met, and the The social function of map software.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying 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 some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

1 is a system architecture diagram to which the data transmission method provided by an embodiment of the present invention is applicable;

Fig. 2 is the realization flow chart of the first mobile terminal side of the data transmission method provided by the embodiment of the present invention;

Fig. 3 is the realization flow chart of the first mobile terminal side of the data transmission method provided by another embodiment of the present invention;

4 is a schematic diagram of a curve pattern drawing provided by an embodiment of the present invention;

5 is a schematic diagram of a connection line drawing provided by an embodiment of the present invention;

Fig. 6 is the realization flow chart of the server side of the data transmission method provided by the embodiment of the present invention;

7 is a specific implementation flowchart of S601 and S602 on the server side of the data transmission method provided by the embodiment of the present invention;

FIG. 8 is a specific implementation flowchart of the first screening of the pre-stored historical information of each device in the data transmission method S702 provided by the embodiment of the present invention;

FIG. 9 is a specific implementation flowchart of the second screening of the pre-stored historical information of each device in the data transmission method S702 provided by the embodiment of the present invention;

10 is a specific implementation flowchart of the data transmission method S704 provided by an embodiment of the present invention;

11 is a structural block diagram of a mobile terminal provided by an embodiment of the present invention;

12 is a structural block diagram of a server provided by an embodiment of the present invention;

FIG. 13 is a structural block diagram of a mobile terminal according to another embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

FIG. 1 shows a system architecture diagram to which the data transmission method provided by the embodiment of the present invention is applicable. For convenience of description, only parts related to this embodiment are shown.

1, the system consists of a first mobile terminal 11, a server 12 and a second mobile terminal 13;

The first mobile terminal 11 and the second mobile terminal 13 are both terminal devices with wireless network access function. Communication with the server 12 is ensured by a map-based application software running on the mobile terminal. The first mobile terminal 11, as a requesting client, submits a search request for the second mobile terminal 13 to the server 12, and selects one or more second mobile terminals 13 on the map as the target device according to the search results returned by the server 12 data transfer.

In this system, the server 12 is configured to process the search conditions uploaded by the first mobile terminal 11 according to the stored historical information of each device. The server 12 requests to acquire real-time location information about the second mobile terminal 13 according to the analysis result of the above historical information, and returns the location information to the first mobile terminal 11 . At the same time, the server 12 is also used to provide a data transfer service for the first mobile terminal 11 , so that the first mobile terminal 11 can forward the data to be transmitted to the target device in at least one second mobile terminal 13 through the server 12 .

Fig. 2 shows the implementation flow chart of the first mobile terminal side of the data transmission method provided by the embodiment of the present invention, and the details are as follows:

In S201, a target search request including search conditions is submitted to the server, so that the server obtains location information of at least one second mobile terminal that satisfies the search conditions.

The first mobile terminal submits a target search request to the server through the map-based application software running in the first mobile terminal, and the request includes the search conditions for the second mobile terminal set by the user or by default.

The search conditions include, but are not limited to, the search distance range value, the search area, and the personality tag and other information. The maximum distance between the second mobile terminal and the geographic location where the first mobile terminal is currently located is the search distance range value; the administrative area at all levels where the second mobile terminal is located is the search area; for the first mobile terminal or the second mobile terminal For users of , their personal status information is a personality tag, including information such as hobbies, occupation, gender, and constellation.

In S202, the location information of the at least one second mobile terminal issued by the server is received, and the location information of the at least one second mobile terminal is displayed on a map of the first mobile terminal.

As the background system of the above-mentioned map-based application software, the server reads the basic information of all currently stored devices from the database, and selects the basic information of the devices that meet the search conditions according to the received search conditions, as The response information of the target search request is returned to the first mobile terminal.

The basic information includes, but is not limited to, the device's personality tag, personal avatar, and current location and other information. If there is a historical data transmission record between the second mobile terminal and the first mobile terminal, the basic information further includes acquaintance mark information.

In this embodiment, the first mobile terminal receives the basic information corresponding to at least one second mobile terminal returned by the server, because each piece of basic information includes the personal avatar of the second mobile terminal representing the source of the information and the second mobile terminal. The real-time position of the terminal, therefore, after the first mobile terminal for displaying information extracts the real-time position of each second mobile terminal from each piece of basic information received, finds out the corresponding Map location points for live location. Thereafter, the personal avatar of each second mobile terminal is displayed at the map location point.

In S203, a communication request for connecting with the target device is sent to the server according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals.

When the user clicks on the personal avatar of any second mobile terminal in the map, the personalized label of the target device and some additional function keys will pop up on the map. The function keys may be, for example, function menu buttons such as file transfer, quick speech, emoticon, and close. Based on the currently displayed basic information of the second mobile terminal, the user can issue a corresponding operation instruction on the map, so as to implement related functions.

When the user sends a touch command on the map, and the touch command is associated with the function keys such as file transfer, quick speech, expression, etc. corresponding to any second mobile terminal, it indicates that the user sends a communication connection with the second mobile terminal instruction, therefore, the second mobile terminal becomes a target device selected by the user.

The first mobile terminal submits a communication connection request according to the target device indicated by the communication connection instruction, and the request carries the identification of the target device, so that the server can distinguish that the target device that the first mobile terminal needs to connect to is one of many devices. which one, and enable the server to issue a communication connection request to the target device in the name of the first mobile terminal.

In S204, after receiving the confirmation information fed back by the server to connect with the target device, perform data transmission with the target device.

After receiving the communication connection request, the target device returns connection confirmation information to the server to indicate that the request has been confirmed currently. At this time, the server acts as a relay station for the information, and forwards the information to the first mobile terminal.

After receiving the connection confirmation information, the first mobile terminal uploads the valid data information to be transmitted by the user to the server through the wireless network, so that the server can continue to transmit information between the two end devices and realize data transmission between the two end devices. and interaction.

This embodiment of the present invention implements data transmission between devices at both ends based on map software. Based on the search conditions uploaded by the first mobile terminal, the server screens the second mobile terminals that satisfy the search conditions, ensuring that the second mobile terminal meets the search conditions. The search range of the mobile terminal can not be limited by the signal transmission distance of the first mobile terminal; the first mobile terminal can intuitively view and select the target device from the currently displayed map according to the location information of the second mobile terminal returned by the server. The data transmission is completed, the operation is simple, and the application scenarios of map software are expanded. The embodiment of the present invention enables the user to transmit data to the second mobile terminal in the vicinity anytime, anywhere, and to communicate with strangers using the second mobile terminal. Therefore, the user's growing social needs are met, and the The social function of map software.

FIG. 3 shows a specific implementation process of the first mobile terminal side S201 of the data transmission method provided by the embodiment of the present invention, which is described in detail as follows:

In S301, the current real-time positioning of the first mobile terminal is uploaded to a server.

In this embodiment, the first mobile terminal obtains real-time positioning through its built-in GPS module; if the first mobile terminal is a mobile phone, it also includes an implementation method of positioning based on the base station of the mobile operation network. The actual location information of the first mobile terminal, such as longitude and latitude coordinate data, three-dimensional data, etc., can be determined. While uploading the acquired real-time positioning information to the server, the first mobile terminal may also carry a personality tag identifying its user characteristics.

In S302, submit a target search request including search conditions to the server, and the search conditions include a search distance range value, so that the server selects the pre-stored historical information of multiple devices, One or more candidate devices are determined in the device, and the real-time positioning and the search distance range value are sent to the candidate device, and the candidate device judges according to the real-time positioning of the first mobile terminal. Whether its current position is within the search distance range value, if so, the candidate device acts as the second mobile terminal and returns its corresponding position information to the server.

For each device with the above map software installed, the server will keep a fixed time interval to obtain the device information of each device. Since the device information is continuously updated in the server, before the real-time system time of the server, the device information of each device obtained by the server is historical information. Historical information can be stored in a database within the server, or independently in a third-party database. The historical information of each device includes, but is not limited to, data information such as historical positioning, personality tags, and moving speed of the device.

If each device uploads device information at a certain time in the past, and after a fixed time, B uploads device information again at a certain time, then at this time, the server updates or overwrites the historical information of the device, so that The currently stored historical information is the information obtained last time.

Preferably, when the device runs the above-mentioned map software, even if the preset time point is not reached, the device will actively upload the device information at the current moment to the server.

The server screens the pre-stored historical information according to the received search conditions, so as to ensure that a candidate device can be finally determined. The candidate device is the device with the highest probability of becoming the second mobile terminal.

After the screening is completed, the server sends the real-time positioning and search conditions uploaded by the first mobile terminal to each candidate device.

After the candidate device obtains its own real-time positioning, it performs analysis and processing in conjunction with the real-time positioning of the first mobile terminal, and judges whether it is the second mobile terminal sought by the first mobile terminal according to the search distance range value in the search conditions, and if so , the judgment result and its corresponding basic information are returned to the server.

As an embodiment of the present invention, after the above S202 and before the above S203, the method further includes:

When it is detected that the pattern drawn by the user on the map is a closed curve including a plurality of the second mobile terminals or a connecting line starting and ending with the first mobile terminal and the second mobile terminal respectively, determine The target device is the second mobile terminal associated with the pattern.

Since the first mobile terminal is a touch screen device, that is, a device that can determine the type of control instruction according to the user's touch gesture, the user can draw a preset pattern shape on the map to issue a communication connection instruction about the target device .

As an implementation example of the present invention, FIG. 4 shows a first mobile terminal, wherein the inner rectangular frame is the display screen of the first mobile terminal, and a map area covering the full screen is currently displayed. Each circle point represents a second mobile terminal at a corresponding position on the map, and the closed curve is a pattern drawn by the user on the map by touching the screen. In this example figure, the first mobile terminal detects that the pattern drawn by the user is a closed curve, and can know each specific second mobile terminal corresponding to the circle point surrounded by the curve. Therefore, the first mobile terminal can determine the current The received touch command is a communication connection command with each second mobile terminal surrounded by the curve, that is, each second mobile terminal surrounded by the curve is the target device, and the first mobile terminal needs to communicate with each second mobile terminal surrounded by the curve. Each target device communicates with each other one by one.

As another implementation example of the present invention, FIG. 5 shows another first mobile terminal, wherein each circle point represents a second mobile terminal at a corresponding position on the map, point A represents the first mobile terminal itself, Point B is a second mobile terminal selected by the user and needs to communicate, the connecting line is a pattern drawn by the user on the map by touching the screen, and the starting and ending points of the connecting line are points A and B. Thus, the first mobile terminal can determine that the currently received touch command is a communication connection command for the device corresponding to the start and end points, that is, the first mobile terminal A needs to communicate with the second mobile terminal B. Therefore, the second mobile terminal B is the target device.

In this embodiment, it is determined whether a communication connection instruction is acquired by detecting the pattern drawn by the user. When it is determined that the current touch instruction is a communication connection instruction, the relevant information of the target device can be acquired according to the shape of the pattern, and then sent to the server. A communication connection request carrying the relevant information. The trigger mode of this command is simple to operate, and only one line is needed to realize one-to-one and one-to-many data transmission. Compared with the traditional target device selection method, the time for selecting devices is reduced, thereby improving the efficiency of data transmission. .

FIG. 6 shows the implementation process on the server side of the data transmission method provided by the embodiment of the present invention. In this embodiment, the execution body of the process is the server, and the details are as follows:

In S601, a target search request including search conditions uploaded by a first mobile terminal is received.

In S602, obtain location information of at least one second mobile terminal that satisfies the search condition.

In S603, the location information of the at least one second mobile terminal is returned to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal on the first mobile terminal. on a map of a mobile terminal.

In S604, when receiving a communication request sent by the first mobile terminal to connect with a target device, request the target device to establish a communication connection with the first mobile terminal, wherein the target device is The user of the first mobile terminal selects in the map, and the target device is one or more of the second mobile terminals.

In S605, after receiving the connection confirmation information returned by the target device, the connection confirmation information is fed back to the first mobile terminal, so that the first mobile terminal and the target device perform data transmission.

The contents of all the embodiments disclosed herein are also applicable to the embodiments of the present invention, and the data transmission principles in the embodiments of the present invention are consistent with the implementation principles of the data transmission methods described in FIG. 1 to FIG. 5 . , so we will not repeat them one by one.

As an embodiment of the present invention, as shown in FIG. 7 , the above S601 and S602 are as follows:

In S701, receive the real-time positioning of the first mobile terminal and a target search request including search conditions, where the search conditions include a search distance range value.

In 702, a first screening and a second screening are performed on the pre-stored historical information of each device to determine one or more candidate devices from the devices.

According to the received search conditions, the server roughly firstly filters the historical information of each device, so that devices with a higher degree of relevance to the search conditions can be preferentially selected. After that, the server performs a second screening on the selected device to ensure that the candidate device is finally determined. The candidate device is the device with the highest probability of becoming the second mobile terminal.

In 703, deliver the real-time positioning and the search distance range value to the candidate device, so as to obtain the position information returned by the second mobile terminal that satisfies the search condition in the one or more candidate devices .

After the screening is completed, the server sends the real-time positioning and search conditions uploaded by the first mobile terminal to each candidate device.

After the candidate device obtains its own real-time positioning, it performs analysis and processing in conjunction with the real-time positioning of the first mobile terminal, and judges whether it is the second mobile terminal sought by the first mobile terminal according to the search distance range value in the search conditions, and if so , the judgment result and its corresponding basic information are returned to the server. At this time, the server can obtain the location information of the second mobile terminal that satisfies the search condition.

The implementation principles of the steps not mentioned in the embodiments of the present invention are the same as the implementation principles of the first mobile terminal-side embodiments in the above data transmission method, and therefore will not be described in detail.

When searching for the second mobile terminal in this embodiment, it is only necessary to upload the real-time positioning and search conditions of the first mobile terminal to the server, and the server will perform secondary screening processing on each device with known historical information, ensuring that the After the first screening, the data information with low correlation can be quickly eliminated from the historical information of the device with a large amount of data, so as to improve the search speed and efficiency of the second mobile terminal; The positioning is sent to the candidate device, and the candidate device judges whether the search conditions are met according to its own real-time information, which can make up for the shortage of the server to find the second mobile terminal according to historical information, reduce the possibility of errors, and ensure that the first mobile terminal finally obtains the The basic information about the second mobile terminal can be more in line with the actual needs of the user, and the accuracy of searching for the second mobile terminal is improved.

As an embodiment of the present invention, FIG. 8 shows a specific implementation process of first screening the pre-stored historical information of each device in the data transmission method S702 provided by the embodiment of the present invention. In this embodiment, the process The execution body of the server is the server, as follows:

In S801, the geographic area to which the first mobile terminal belongs is acquired according to the real-time positioning.

For example, after acquiring the real-time positioning of the first mobile terminal, the server obtains the geographic data coordinate points corresponding to the real-time positioning. At this time, the server superimposes the pre-stored layer map of the administrative region with the coordinate points. If the coordinate point is located within a certain administrative area of the layer map, the name attribute of the administrative area is read, and the name attribute is the geographic area where the first mobile terminal is currently located.

In particular, according to the degree of demand for the first screening result of the terminal equipment, the level map of the administrative area can be divided into level maps with different levels. By superimposing layer maps of different levels with coordinate points respectively, the name attributes of geographical areas with different levels can be obtained. For example, for the same coordinate point, it may belong to different levels of geographical areas such as Guangdong, Shenzhen or Futian District.

In S802, the pre-stored historical positioning of each device is acquired.

Historical information can be stored in a database within the server, or independently in a third-party database. The historical information of each device includes, but is not limited to, data information such as historical positioning, personality tags, and moving speed of the device.

In S803, the geographic area to which each device belongs is acquired according to the historical positioning.

Using the same implementation manner in S801, the server determines, according to the historical location in each piece of historical information, the geographic area where the terminal device is located when the historical location of each device is received.

In S804, a first device that is the same as the geographic area to which the first mobile terminal belongs is screened out from the respective devices.

For any device, according to the geographical area where it is located, it can be determined whether the geographical area to which the device and the first mobile terminal belong are the same. If they are the same, it can be determined that the user of the device is very likely to be the group that the user of the first mobile terminal wants to search for, and therefore, the device is determined to be a first device.

In particular, in addition to judging whether the geographical area to which the device and the first mobile terminal belong are the same, so as to filter out the first device, it is also possible to judge whether the personality tag of the device and the first mobile terminal are the same, or to judge whether the device Whether the geographic area and personality tag to which the first mobile terminal belongs are the same, so as to filter out the first device from multiple devices.

The implementation principles of the steps not mentioned in the embodiments of the present invention are the same as the implementation principles of the first mobile terminal-side embodiments in the above data transmission method, and therefore will not be described in detail.

As an embodiment of the present invention, FIG. 9 shows a specific implementation flow of the second screening of the pre-stored historical information of each device in the data transmission method S702 provided by the embodiment of the present invention. In this embodiment, the flow The execution body of the server is the server, as follows:

In S901, the update time of the historical information of the first device and the moving speed of the device in the historical information are acquired.

The server may obtain the update time of each piece of historical information from the attribute of the historical information, and read the moving speed of each first device from each piece of historical information.

Among them, when the server receives the historical positioning of the device, it can analyze and obtain the moving speed of each device based on the processing mode of big data, and store it in the historical information corresponding to the device, so as to facilitate the calculation of the possible generation of the device in the future. moving distance.

In S902, determine whether the first device satisfies a preset condition, and if so, determine the first device as the candidate device;

Wherein, the preset condition is:

A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V

In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device.

The server substitutes the information parameter value corresponding to each first candidate device into the preset condition, so as to determine whether the preset condition is satisfied, and if so, determines that the first device is a candidate device.

As an embodiment of the present invention, FIG. 10 shows a specific implementation process of the data transmission method S704 provided by the embodiment of the present invention, which is described in detail as follows:

In S1001, the candidate devices are sorted according to the order of the update time of the historical information.

Since each candidate device has a piece of historical information in the server, and the server records the update time of the piece of historical information, all historical information can be sorted in ascending order according to the update time of the historical information. The order of is the sorting result of the candidate devices corresponding to the piece of historical information.

In this embodiment, for a piece of historical information acquired by the server at a point in time closest to the current moment, the more "first" the historical information is updated, the more "first" the historical information is updated, the more information the server acquires at a point in time farthest from the current moment A piece of historical information, the more "later" the update time of the historical information is.

The specific effect of the sorting rule is to make the candidate device with a later update time of the historical information to be ranked before the candidate target device with an earlier update time of the historical information.

In S1002, according to the sorting of the candidate devices, the real-time positioning and the search distance range value are sequentially delivered to the candidate devices.

The higher the priority of the candidate target device in the ranking, the higher the weight. Therefore, when the server sends the real-time positioning and search conditions uploaded by the first mobile terminal to each candidate device, the data will be sent in sequence according to the level of priority.

The data delivery method provided in this embodiment ensures that candidate devices with a late update time of historical information can preferentially receive the search condition information delivered by the server, and perform self-judgment processing according to the search condition information in advance, so as to be able to update more information. Quickly return the judgment result to the server. Since the candidate target device whose history information is updated later may have the highest probability of becoming the second mobile terminal, the search efficiency of the first mobile terminal for the second mobile terminal can be improved.

As an embodiment of the present invention, the server acquires the hotspot access information uploaded by the first mobile terminal and the target device, wherein the first mobile terminal and the target device are in a communication connection state.

After reading the hotspot access information, the server switches the data transmission modes of the first mobile terminal and the target device when recognizing that both devices at both ends are connected to the same wireless hotspot. That is, the original mode of transferring data by the server is switched to the mode in which the devices at both ends directly transmit data through the wireless local area network.

As an embodiment of the present invention, when the first mobile terminal requests to download data in the target device, the target device initiates a password acquisition request, requesting the first mobile terminal to send the download password to the target device. After receiving the download password sent by the first mobile terminal, the target device determines whether the preset password is the same as the download password according to the preset password stored in the interior. If the same, the first mobile terminal is allowed to download the stored data.

Preferably, the second mobile terminal acquires the time period information preset by the user in the second mobile terminal. When the second mobile terminal is determined as a candidate device, if it is detected that the current system time is not within the time period, the server refuses to receive the search distance range value sent by the server and the real-time positioning of the first mobile terminal, so that the The first mobile terminal cannot search for the second mobile terminal and cannot transmit data therewith.

Preferably, the second mobile terminal acquires a distance range value preset by the user within the second mobile terminal. When the second mobile terminal is determined as a candidate device, if it receives the search distance range value sent by the server and the real-time positioning of the first mobile terminal, the second mobile terminal judges the current position of itself and the first mobile terminal. Whether the distance of the terminal is within the preset distance range value. If the distance between the current position of the user and the first mobile terminal is not within the preset distance range value, the basic information about the own device is not returned, so that the first mobile terminal cannot search the second mobile terminal. , cannot transfer data to it.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Corresponding to the data transmission method on the side of the first mobile terminal provided by the embodiment of the present invention, FIG. 11 shows a structural block diagram of the mobile terminal provided by the embodiment of the present invention, and the mobile terminal is used to complete the first mobile terminal in the above data transmission method. The functions that the terminal needs to implement. For convenience of explanation, only the parts related to this embodiment are shown.

11, the mobile terminal includes:

The submitting unit 1101 is configured to submit a target search request including search conditions to a server, so that the server obtains the location information of at least one second mobile terminal that satisfies the search conditions.

The receiving unit 1102 is configured to receive the location information of the at least one second mobile terminal delivered by the server, and display the location information of the at least one second mobile terminal on a map of the first mobile terminal.

The sending unit 1103 is configured to send a communication request for connecting with the target device to the server according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals.

The transmission unit 1104 is configured to perform data transmission with the target device after receiving the confirmation information fed back by the server for connecting with the target device.

Optionally, the mobile terminal further includes:

The uploading unit is configured to upload the current real-time positioning of the first mobile terminal to the server.

The submitting unit 1101 is specifically used for:

Submit a target search request containing search conditions to the server, and the search conditions include a search distance range value, so that after the server has screened the pre-stored historical information of a plurality of devices, a or multiple candidate devices, and send the real-time positioning and the search distance range value to the candidate device, and the candidate device determines its current position according to the real-time positioning of the first mobile terminal Whether it is within the search distance range value, and if so, the candidate device, as the second mobile terminal, returns its corresponding location information to the server.

Optionally, the mobile terminal further includes:

The detection unit is configured to detect that the pattern drawn by the user on the map is a closed curve including a plurality of the second mobile terminals or a pattern starting and ending with the first mobile terminal and the second mobile terminal respectively. When connecting the lines, it is determined that the target device is the second mobile terminal associated with the pattern.

Corresponding to the data transmission method on the server side described in the above embodiment, FIG. 12 shows a structural block diagram of the server provided by the embodiment of the present invention. For convenience of description, only the part related to this embodiment is shown.

Referring to Figure 12, the server includes:

The receiving unit 1201 is configured to receive a target search request including search conditions uploaded by the first mobile terminal.

The obtaining unit 1202 is configured to obtain location information of at least one second mobile terminal that satisfies the search condition.

Returning unit 1203, configured to return the location information of the at least one second mobile terminal to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal in the on the map of the first mobile terminal.

The requesting unit 1204 is configured to request the target device to establish a communication connection with the first mobile terminal when receiving a communication request sent by the first mobile terminal to connect with the target device, wherein the target device is configured by The user of the first mobile terminal selects in the map, and the target device is one or more of the second mobile terminals.

The feedback unit 1205 is configured to feed back the connection confirmation information to the first mobile terminal after receiving the connection confirmation information returned by the target device, so that the first mobile terminal and the target device perform data transmission .

Optionally, the receiving unit 1201 includes:

The receiving subunit is configured to receive the real-time positioning of the first mobile terminal and a target search request including search conditions, where the search conditions include a search distance range value.

The obtaining unit 1202 includes:

The screening subunit is configured to perform a first screening and a second screening on the pre-stored historical information of each device, so as to determine one or more candidate devices from the devices.

The obtaining subunit is configured to send the real-time positioning and the search distance range value to the candidate device, so as to obtain the information returned by the second mobile terminal that satisfies the search condition in the one or more candidate devices. location information.

Optionally, the screening subunit is specifically used for:

obtaining, according to the real-time positioning, the geographic area to which the first mobile terminal belongs;

Obtain the pre-stored historical positioning of each device;

According to the historical positioning, obtain the geographic area to which each device belongs;

A first device that is the same as the geographic area to which the first mobile terminal belongs is filtered out from the respective devices.

Optionally, the screening subunit is also used for:

Obtain the update time of the historical information of the first device and the moving speed of the device in the historical information;

Determine whether the first device satisfies a preset condition, and if so, determine the first device as the candidate device;

Wherein, the preset condition is:

A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V;

In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device.

Optionally, the obtaining subunit is specifically used for:

Sorting the candidate devices according to the sequence of the update time of the historical information;

According to the sorting of the candidate devices, the real-time positioning and the search distance range value are sequentially delivered to the candidate devices.

FIG. 13 shows a structural block diagram of a mobile terminal provided by another embodiment of the present invention, where the mobile terminal is used to complete the functions required to be implemented by the first mobile terminal in the above data transmission method. For convenience of explanation, only the parts related to this embodiment are shown.

The mobile terminal 1300 shown in FIG. 13 includes: at least one processor 1301 , memory 1302 , at least one network interface 1303 and user interface 1304 . The various components in the mobile terminal 1300 are coupled together by a bus system 1305 . It can be understood that the bus system 805 is used to implement the connection communication between these components. In addition to the data bus, the bus system 1305 also includes a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1305 in FIG. 13 .

Among them, the user interface 1304 may include a display, a keyboard, or a pointing device. For example, a mouse, trackball, touch pad or touch screen, and the like.

It can be understood that the memory 1302 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (ErasablePROM, EPROM), Electrically Erasable Program read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double data rate synchronous dynamic random access memory (DoubleDataRateSDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct memory bus random access Memory (DirectRambusRAM, DRRAM). The memory 1302 of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

In some embodiments, memory 1302 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set of them: an operating system 1321 and applications 1322 .

The operating system 1321 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 1322 includes various application programs, such as a media player (MediaPlayer), a browser (Browser), etc., for implementing various application services. The program implementing the method of the embodiment of the present invention may be included in the application program 1322 .

In this embodiment of the present invention, by calling the program or instruction stored in the memory 1302, specifically, the program or instruction stored in the application program 1322, the processor 1301 is configured to receive social dynamic update prompt information about the second mobile terminal; Acquiring the real-time geographic location of the second mobile terminal; and displaying the real-time geographic location of the second mobile terminal and the social dynamic update prompt information on the electronic map interface of the first mobile terminal.

The methods disclosed in the above embodiments of the present invention may be applied to the processor 1301 or implemented by the processor 1301 . The processor 1301 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 1301 or an instruction in the form of software. The above-mentioned processor 1301 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates. Or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1302, and the processor 1301 reads the information in the memory 1302, and completes the steps of the above method in combination with its hardware.

It will be appreciated that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD) ), a Field-Programmable Gate Array (FPGA), a general-purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented through unit modules, such as procedures, functions, etc., that perform the functions described herein. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

Optionally, the processor 1301 is further configured to:

Submitting a target search request containing search conditions to the server, so that the server obtains location information of at least one second mobile terminal that satisfies the search conditions;

receiving the location information of the at least one second mobile terminal issued by the server, and displaying the location information of the at least one second mobile terminal on a map of the first mobile terminal;

Send a communication request to the server to connect with the target device according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals;

After receiving the confirmation information fed back by the server to connect with the target device, perform data transmission with the target device.

Optionally, the processor 1301 is further configured to:

uploading the current real-time positioning of the first mobile terminal to the server;

Submit a target search request containing search conditions to the server, and the search conditions include a search distance range value, so that after the server has screened the pre-stored historical information of a plurality of devices, a or multiple candidate devices, and send the real-time positioning and the search distance range value to the candidate device, and the candidate device determines its current position according to the real-time positioning of the first mobile terminal Whether it is within the search distance range value, and if so, the candidate device, as the second mobile terminal, returns its corresponding location information to the server.

Optionally, the processor 1301 is further configured to:

When it is detected that the pattern drawn by the user on the map is a closed curve including a plurality of the second mobile terminals or a connecting line starting and ending with the first mobile terminal and the second mobile terminal respectively, determine The target device is the second mobile terminal associated with the pattern.

The mobile terminal 1300 can implement each process implemented by the first mobile terminal in the foregoing embodiment, and in order to avoid repetition, details are not repeated here.

This embodiment of the present invention implements data transmission between devices at both ends based on map software. Based on the search conditions uploaded by the first mobile terminal, the server screens the second mobile terminals that satisfy the search conditions, ensuring that the second mobile terminal meets the search conditions. The search range of the mobile terminal can not be limited by the signal transmission distance of the first mobile terminal; the first mobile terminal can intuitively view and select the target device from the currently displayed map according to the location information of the second mobile terminal returned by the server. The data transmission is completed, the operation is simple, and the application scenarios of map software are expanded. The embodiment of the present invention enables the user to transmit data to the second mobile terminal in the vicinity anytime, anywhere, and to communicate with strangers using the second mobile terminal. Therefore, the user's growing social needs are met, and the The social function of map software.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (8)

1. a data transmission method, applied to the first mobile terminal, is characterized in that, comprising: A target search request containing search conditions is submitted to the server through the map-based application software running inside the first mobile terminal, so that the server obtains the location information of at least one second mobile terminal that satisfies the search conditions, the target The search request is used to request to search for other nearby mobile terminals; receiving the location information of the at least one second mobile terminal issued by the server, and displaying the location information of the at least one second mobile terminal on a map of the first mobile terminal; Send a communication request to the server to connect with the target device according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals; After receiving the confirmation information fed back by the server to connect with the target device, upload the valid data information to be transmitted to the server, and perform data transmission with the target device through the server and based on the application software; Before the step of submitting a target search request containing search conditions to the server, the method further includes: uploading the current real-time positioning of the first mobile terminal to the server; The submitting a target search request including search conditions to the server, so that the server obtains the location information of at least one second mobile terminal that satisfies the search conditions, includes: Submit a target search request including search conditions to the server, where the search conditions include a search distance range value, so that after the server performs the first screening and the second screening on the pre-stored historical information of multiple devices, One or more candidate devices are determined from the devices, and the real-time positioning and the search distance range value are sent to the candidate devices, and the candidate devices are based on the real-time positioning of the first mobile terminal. , judging whether its current position is within the range of the search distance value, and if so, the candidate device, as the second mobile terminal, returns its corresponding position information to the server; The first screening includes: The server acquires, according to the real-time positioning, the geographic area to which the first mobile terminal belongs; The server obtains the pre-stored historical positioning of each device; The server obtains, according to the historical location, the geographic area to which each device belongs; The server selects, from the respective devices, a first device that is the same as the geographic area to which the first mobile terminal belongs; The second screening includes: The server obtains the update time of the historical information of the first device and the moving speed of the device in the historical information; The server determines whether the first device satisfies a preset condition, and if so, determines the first device as the candidate device; Wherein, the preset condition is: A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device. 2 . The method according to claim 1 , wherein, when receiving the location information of the at least one second mobile terminal issued by the server, and converting the location information of the at least one second mobile terminal to the server. 3 . After the step of displaying on the map of the first mobile terminal, and before the step of sending a communication request for connecting with the target device to the server according to the target device selected by the user on the map, the The method also includes: When it is detected that the pattern drawn by the user on the map is a closed curve including a plurality of the second mobile terminals or a connecting line starting and ending with the first mobile terminal and the second mobile terminal respectively, determine The target device is the second mobile terminal associated with the pattern. 3. A data transmission method, applied to a server, comprising: Receive a target search request including search conditions uploaded by the first mobile terminal, where the target search request is used to request to search for other nearby mobile terminals; the target search request is submitted through a map-based application software running inside the first mobile terminal of; obtaining location information of at least one second mobile terminal that satisfies the search condition; Return the location information of the at least one second mobile terminal to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal on the first mobile terminal. on the map; When receiving a communication request sent by the first mobile terminal to connect with a target device, request the target device to establish a communication connection with the first mobile terminal, wherein the target device is sent by the first mobile terminal selected from the map, and the target device is one or more of the second mobile terminals; After receiving the connection confirmation information returned by the target device, feeding back the connection confirmation information to the first mobile terminal, so that the first mobile terminal performs data transmission with the target device based on the application software; The receiving a target search request containing search conditions uploaded by the first mobile terminal includes: receiving the real-time positioning of the first mobile terminal and a target search request including search conditions, where the search conditions include a search distance range value; The acquiring the location information of at least one second mobile terminal that satisfies the search condition includes: Perform the first screening and the second screening on the pre-stored historical information of each device to determine one or more candidate devices from the devices; sending the real-time positioning and the search distance range value to the candidate device, so as to obtain the position information returned by the second mobile terminal that satisfies the search condition in the one or more candidate devices; The first screening of the pre-stored historical information of each device includes: obtaining, according to the real-time positioning, the geographic area to which the first mobile terminal belongs; Obtain the pre-stored historical positioning of each device; According to the historical positioning, obtain the geographic area to which each device belongs; Filter out the first device that is the same as the geographic area to which the first mobile terminal belongs from the respective devices; The second screening of the pre-stored historical information of each device includes: Obtain the update time of the historical information of the first device and the moving speed of the device in the historical information; Determine whether the first device satisfies a preset condition, and if so, determine the first device as the candidate device; Wherein, the preset condition is: A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device. 4. The method of claim 3, wherein sending the real-time positioning and the search distance range value to the candidate device comprises: Sorting the candidate devices according to the sequence of the update time of the historical information; According to the sorting of the candidate devices, the real-time positioning and the search distance range value are sequentially delivered to the candidate devices. 5. A mobile terminal, comprising: A submitting unit for submitting a target search request including search conditions to a server through a map-based application software running inside the first mobile terminal, so that the server obtains the location of at least one second mobile terminal that satisfies the search conditions information, the target search request is used to request to search for other nearby mobile terminals; a receiving unit, configured to receive the location information of the at least one second mobile terminal issued by the server, and display the location information of the at least one second mobile terminal on a map of the first mobile terminal; a sending unit, configured to send a communication request to the server to connect with the target device according to the target device selected by the user on the map, where the target device is one or more of the second mobile terminals; The transmission unit is used to upload the valid data information to be transmitted to the server after receiving the confirmation information fed back by the server to connect with the target device, and perform data transmission with the target device through the server and based on the application software. transmission; The mobile terminal also includes: an uploading unit, configured to upload the current real-time positioning of the first mobile terminal to a server; The submission unit is specifically used for: Submit a target search request including search conditions to the server, where the search conditions include a search distance range value, so that after the server performs the first screening and the second screening on the pre-stored historical information of multiple devices, One or more candidate devices are determined from the devices, and the real-time positioning and the search distance range value are sent to the candidate devices, and the candidate devices are based on the real-time positioning of the first mobile terminal. , judging whether its current position is within the range of the search distance value, and if so, the candidate device, as the second mobile terminal, returns its corresponding position information to the server; The first screening includes: The server acquires, according to the real-time positioning, the geographic area to which the first mobile terminal belongs; The server obtains the pre-stored historical positioning of each device; The server obtains, according to the historical location, the geographic area to which each device belongs; The server selects, from the respective devices, a first device that is the same as the geographic area to which the first mobile terminal belongs; The second screening includes: The server obtains the update time of the historical information of the first device and the moving speed of the device in the historical information; The server determines whether the first device satisfies a preset condition, and if so, determines the first device as the candidate device; Wherein, the preset condition is: A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device. 6. The mobile terminal of claim 5, wherein the mobile terminal further comprises: The detection unit is configured to detect that the pattern drawn by the user on the map is a closed curve including a plurality of the second mobile terminals or a pattern starting and ending with the first mobile terminal and the second mobile terminal respectively. When connecting the lines, it is determined that the target device is the second mobile terminal associated with the pattern. 7. A server, characterized in that, comprising: The receiving unit is configured to receive a target search request including search conditions uploaded by the first mobile terminal, where the target search request is used to request to search for other nearby mobile terminals; the target search request is based on an internal operation of the first mobile terminal. Submitted by the map application software; an acquiring unit, configured to acquire location information of at least one second mobile terminal that satisfies the search condition; A returning unit, configured to return the location information of the at least one second mobile terminal to the first mobile terminal, so that the first mobile terminal displays the location information of the at least one second mobile terminal on the first mobile terminal on the map of the first mobile terminal; a requesting unit, configured to request the target device to establish a communication connection with the first mobile terminal when receiving a communication request sent by the first mobile terminal to connect with a target device, wherein the target device is The user of the first mobile terminal selects in the map, and the target device is one or more of the second mobile terminals; a feedback unit, configured to feed back the connection confirmation information to the first mobile terminal after receiving the connection confirmation information returned by the target device, so that the first mobile terminal communicates with the target based on the application software equipment for data transmission; The receiving unit includes: a receiving subunit, configured to receive the real-time positioning of the first mobile terminal and a target search request including search conditions, where the search conditions include a search distance range value; The acquisition unit includes: a screening subunit, configured to perform a first screening and a second screening on the pre-stored historical information of each device, so as to determine one or more candidate devices from the devices; The obtaining subunit is configured to send the real-time positioning and the search distance range value to the candidate device, so as to obtain the information returned by the second mobile terminal that satisfies the search condition in the one or more candidate devices. location information; The screening subunit is specifically used for: obtaining, according to the real-time positioning, the geographic area to which the first mobile terminal belongs; Obtain the pre-stored historical positioning of each device; According to the historical positioning, obtain the geographic area to which each device belongs; Filter out the first device that is the same as the geographic area to which the first mobile terminal belongs from the respective devices; The screening subunit is also used for: Obtain the update time of the historical information of the first device and the moving speed of the device in the historical information; Determine whether the first device satisfies a preset condition, and if so, determine the first device as the candidate device; Wherein, the preset condition is: A/2>(B ₁ -B ₂ )-(C ₁ -C ₂ )*V; In the above formula, A is the range value of the search distance, B1 is the historical positioning of the _first device, B2 is the real _- time positioning of the first mobile terminal, _C1 is the real-time time, and _C2 is the first. The update time of the historical information of a device, and V is the moving speed of the first device. 8. The server according to claim 7, wherein the acquiring subunit is specifically used for: Sorting the candidate devices according to the sequence of the update time of the historical information; According to the sorting of the candidate devices, the real-time positioning and the search distance range value are sequentially delivered to the candidate devices.

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