WO2015010579A1

WO2015010579A1 - Target searching method, device, apparatus and system

Info

Publication number: WO2015010579A1
Application number: PCT/CN2014/082568
Authority: WO
Inventors: 牟伟成; 曹志灵
Original assignee: 腾讯科技（深圳）有限公司
Priority date: 2013-07-22
Filing date: 2014-07-21
Publication date: 2015-01-29
Also published as: CN104333845B; CN104333845A

Abstract

Disclosed are a target searching method, device, apparatus and system, the method comprising: receiving the position parameters of a terminal (202); according to the position parameters of the terminal, searching for at least one target meeting predetermined conditions, the predetermined conditions including that the geographical location of the target belongs to a predetermined range indicated by the position parameters of the terminal (204); determining the display position of the information of the target according to a relative geographical location between the target and the terminal (206); transmitting the information of the target and the display position of the information of the target to the terminal (208); and displaying the information of at least one target in a superimposed manner on a real-time street view image displayed by the terminal (210). The present invention displays a relative geographical location between a target and a terminal on a real-time street view image, clearly showing the actual geographical location of the target.

Description

Target search method, device, device and system The present application claims priority to Chinese patent application filed on July 22, 2013 by the Chinese Patent Office, application number 2013103092833, and the invention titled "target finding method, device, device and system" The entire contents of which are incorporated herein by reference. Technical field

The present invention relates to the field of communications, and in particular, to a target search method, apparatus, device, and system. Background technique

Terminals such as smartphones, tablets, PDAs, and e-book readers have been widely used by users in their daily lives. Among them, viewing the nearby people through the terminal is one of the most commonly used functions of the user.

Taking a nearby person as a target, the current target search method includes: First, the current user triggers the terminal to start searching for nearby people through trigger signals such as "shake" and "blow"; The terminal first locates its own geographical location, and then finds several other users in the same area as its own geographical location. The "same area" may refer to the location of the terminal itself, 500 meters, 1 kilometer or 5 kilometers, etc.; The terminal displays the several other users that are found to the current user through the list, so that the current user performs subsequent operations such as adding a friend, sending a message, or navigating.

However, since the list mode can only display some text information of other users, the current user can only determine whether other users are users who need to perform subsequent operations through the text information, and the effective information that can be obtained is less. Summary of the invention

The embodiment of the invention provides a target searching method, device, device and system. The technical solution is as follows.

According to an aspect of the present invention, a target search method is provided, the method comprising: receiving a location parameter of a terminal;

Finding, according to the location parameter of the terminal, at least one target that meets a predetermined condition, where the predetermined condition includes that the geographic location of the target belongs to a predetermined range indicated by the location parameter of the terminal; Determining a display position of the information of the target according to a relative geographic location between the target and the terminal;

And transmitting the information of the target and the display position of the information of the target to the terminal, so that the terminal superimposes the information of the at least one target on the displayed real-time street view image.

According to an aspect of the present invention, a target search method is provided, the method comprising: transmitting a location parameter of a terminal to a server; so that the server receives a location parameter of the terminal, and the server searches for a match according to the location parameter of the terminal At least one target of the predetermined condition, the predetermined condition includes that the geographic location of the target belongs to a predetermined range indicated by the location parameter of the terminal, and the server determines according to the relative geographic location between the target and the terminal a display position of the information of the target, and sending the information of the target and the display position of the information of the target to the terminal;

Receiving a display position of the information of the target and the information of the target sent by the server; and displaying information of the at least one target according to the display position superimposed on the displayed real-time street view image.

According to an aspect of the present invention, a target search device is provided, the device includes: a parameter receiving module, configured to receive a location parameter of the terminal;

a target search module, configured to search for at least one target that meets a predetermined condition according to the location parameter of the terminal acquired by the parameter obtaining module, where the predetermined condition includes that the geographic location of the target belongs to a location parameter of the terminal Within the predetermined range;

a location determining module, configured to determine, according to a relative geographic location between the target and the terminal, a display location of information of the target;

An information sending module, configured to send the information of the target and the display position of the information of the target to the terminal, so that the terminal displays at least one of the found ones according to the display position superimposed on the displayed real-time street image. Target information.

According to an aspect of the present invention, a target search device is provided, the device includes: a parameter sending module, configured to send a location parameter of a terminal to a server, so that the server receives a location parameter of the terminal, and the server is configured according to the The location parameter of the terminal searches for at least one target that meets a predetermined condition, the predetermined condition that the geographic location of the target belongs to a predetermined range indicated by the location parameter of the terminal, and the server according to the target and the terminal The relative geographical position between the two determines the display position of the information of the target, and displays the information of the target and the information of the target The location is sent to the terminal;

An information receiving module, configured to receive information about the target sent by the server and a display location of the information of the target;

And an information display module, configured to superimpose and display the information of the at least one target according to the display position on the displayed real-time street view image.

According to an aspect of the invention, a computer readable storage medium storing one or more programs executed by a computer system, the program comprising instructions for performing the following steps:

Receiving a location parameter of the terminal;

Finding, according to the location parameter of the terminal, at least one target that meets a predetermined condition, where the predetermined condition includes that the geographic location of the target belongs to a predetermined range indicated by a location parameter of the terminal; according to the target and the terminal The relative geographical position between the two determines the display position of the information of the target;

Transmitting the information of the target and the display position of the information of the target to the terminal, so that the terminal superimposes the information of the at least one target according to the display position on the displayed real-time street view image.

According to an aspect of the invention, a computer readable storage medium storing one or more programs executed by a computer system, wherein the program comprises instructions for: transmitting a location parameter of a terminal to a server The server receives the location parameter of the terminal, and the server searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, where the predetermined condition includes that the geographic location of the target belongs to the location parameter of the terminal. Within a predetermined range, the server determines a display position of the information of the target according to a relative geographic location between the target and the terminal, and sends the information of the target and the display position of the information of the target to the location Terminal

Finding at least one target that meets a predetermined condition by using a location parameter of the terminal, and determining a display position of the information of the target according to a relative geographic location between the target and the terminal, and transmitting the information of the target and the display position of the information of the target to the terminal, so that The terminal superimposes the information of at least one target on the displayed real-time street view image, and can display the relative geographical position between the target and the terminal in the real-time street view image. Set, more clearly shows the actual geographical location of the target. BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic structural diagram of an implementation environment involved in a target search method according to an embodiment of the present invention;

2 is a flowchart of a method for searching for a target according to an embodiment of the present invention;

3A is a flowchart of a method for searching for a target according to an embodiment of the present invention;

3B is a schematic diagram of implementation of a polar coordinate system according to an embodiment of the present invention;

3C is a schematic diagram of implementation of coordinate conversion according to an embodiment of the present invention;

FIG. 3D is a schematic diagram showing display of information of a target according to an embodiment of the present invention; FIG.

4 is a flowchart of a method for searching for a target according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a target search apparatus according to an embodiment of the present invention; FIG.

6 is a structural block diagram of a target search apparatus according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of a target search apparatus according to an embodiment of the present invention;

8 is a structural block diagram of a target search system according to an embodiment of the present invention;

FIG. 9 is a structural block diagram of a target search apparatus according to an embodiment of the present invention; FIG.

FIG. 10 is a structural block diagram of a target search apparatus according to an embodiment of the present invention; FIG.

FIG. 11 is a structural block diagram of a target search apparatus according to an embodiment of the present invention. Mode for carrying out the invention

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of an implementation environment involved in a target search method according to an embodiment of the present invention. The implementation environment includes a terminal 120 and a server 140.

The terminal 120 may be an electronic device including a camera, and the electronic device may be a smart phone, a tablet, an e-book reader, or an MP3 player (Moving Picture Experts Group Audio Layer) III, Motion Picture Expert Compresses Standard Audio Level 3), MP4 (Moving Picture Experts Group

Audio Layer IV, Motion Picture Expert compresses standard audio layers 3) Players, laptop portable computers and desktop computers, etc.

The terminal 120 and the server 140 can be connected through a wireless network or a wired network.

The server 140 can be a server, or a server cluster consisting of several servers, or a cloud computing service center. Please refer to FIG. 2, which illustrates a method flow diagram of a target search method provided by an embodiment of the present invention. The target search method can be used in the implementation environment in Figure 1, and the target search method includes the following steps.

Step 202: The server receives a location parameter of the terminal.

The location parameters of the terminal usually include the geographic location of the terminal and the orientation information of the camera of the terminal. After obtaining the location parameters of the terminal, the terminal sends the location parameters of the terminal to the server. Correspondingly, the server receives the location parameters of the terminal.

Step 204: The server searches for at least one target that meets a predetermined condition according to the location parameter of the terminal, where the predetermined condition includes that the geographic location of the target belongs to a predetermined range indicated by the location parameter of the terminal.

The predetermined range indicated by the positional parameter of the terminal is usually a sector area whose vertex angle is determined by the geographical position of the terminal, and the angle bisector of the central angle of the sector area is determined by the orientation information of the camera of the terminal.

The target may be any of other users, other terminals, POI (Point of Interest), and a router whose IP address can identify the location. In this article, we only give examples to other users.

Step 206: The server determines a display location of the information of the target according to a relative geographic location between the target and the terminal.

Step 208: The server sends the information of the target and the display position of the information of the target to the terminal. The target information includes at least one of a target avatar, nickname, IP address, gender, age, status, occupation, category, address, and keyword.

The display position of the information of the target is used to instruct the terminal to display the information of the at least one target based on the display position superimposed on the displayed real-time street view image.

Correspondingly, the terminal receives the information of the target transmitted by the server and the display position of the information of the target. Step 210: The terminal superimposes the information of the at least one target according to the display position on the displayed real-time street view image.

There are two types of Street View images: traditional Street View images and real-time Street View images. The traditional street view image is a street view image that is pre-collected and saved in the server, and the terminal can call the street view image to display from the server at any time; the real-time street view image refers to the real-time street view image through the built-in camera when the terminal is located in a certain street scene. The image collected. In the embodiment of the present invention, the main latter is taken as an example, that is, a real-time street view image.

In summary, the target search method provided by the embodiment searches for at least one target that meets a predetermined condition by using a location parameter of the terminal, and determines a display position of the target information according to a relative geographic location between the target and the terminal, and the target is The information and the display position of the target information are sent to the terminal, so that the terminal superimposes and displays the information of the at least one target on the displayed real-time street view image, and the relative geographical position between the target and the terminal can be displayed in the real-time street view image, more clearly The actual location of the target is shown.

The relative geographic location between the target and the terminal includes a relative direction and a relative distance between the target and the terminal, and the relative position between the target and the terminal may determine a display position of the information of the target in the first display dimension, the first display The dimension is typically the horizontal display dimension of the terminal relative to the ground; the second display dimension is typically the vertical display dimension of the terminal relative to the ground. Please refer to FIG. 3A, which illustrates a method flow diagram of a target search method provided by an embodiment of the present invention. This embodiment is still exemplified by the target search method used in the implementation environment shown in FIG. 1. The target search method includes the following steps.

Step 301: The server receives a location parameter of the terminal.

The location parameter of the terminal may be actively sent by the terminal to the server. At this time, the server receives the location parameter of the terminal sent by the terminal. The location parameters of the terminal usually include the geographic location of the terminal and the orientation information of the camera of the terminal, and may also include elevation information of the camera of the terminal and motion information of the terminal.

If the location parameter of the terminal includes the geographic location of the terminal, the terminal acquires its geographic location through an LBS (Location Based Service) positioning technology. The LBS positioning technology includes but is not limited to: GPS (Global Positioning System) positioning technology, COO (Cell of Origin) positioning technology, TDO A (Time Difference of Arrival) positioning technology, at least One. If the location parameter of the terminal includes the orientation information of the camera of the terminal, the terminal acquires the orientation information of the camera of the terminal through the built-in electronic compass sensor.

If the location parameter of the terminal includes the elevation information of the terminal, the terminal acquires the elevation information of the terminal through the built-in gyro sensor.

If the position parameter of the terminal includes the motion information of the terminal, the terminal acquires the motion information of the terminal through the built-in three-axis acceleration sensor and/or the gyro sensor. The three-axis acceleration sensor is used to acquire motion information when the terminal moves, and the gyro sensor is used to acquire motion information when the terminal rotates.

After that, the server searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, and the predetermined condition includes that the geographical location of the target belongs to a predetermined range indicated by the location parameter of the terminal. The searching process is as follows in steps 302 to 306.

Step 302: The server determines a sector area according to the position parameter of the terminal. The center angle vertices of the sector area are determined by the geographic location of the terminal, and the angle bisector of the central angle of the sector area is determined by the orientation information of the camera.

The location parameter of the terminal includes at least the geographic location of the terminal and the orientation information of the camera in the terminal. Specifically, this step includes the following substeps:

1. The server uses the geographic location of the terminal as the origin, and establishes the polar coordinate system with the orientation of the camera in the terminal as the polar axis.

Referring to FIG. 3B, the geographic location of the terminal is (x0, y0), and the orientation of the camera is as shown by the ray a. The point identified by (x0, y0) is used as the origin in the polar coordinate system, and the ray a is used as the pole. The polar axis in the coordinate system to establish the polar coordinate system. On both sides of the central angle, the arc of the sector is determined by the predetermined radius r to obtain a sector.

Let the ray where the predetermined angle β is located be the ray b, and the ray where the predetermined angle -β is located is the ray c, and the two sides of the central angle of the sector area are determined by the ray b and the ray C. Wherein, the size of β is a preset value or a value associated with the horizontal angle of view of the camera of the terminal. For example, if the camera's horizontal viewing angle is 120 degrees, then β is 60 degrees.

At the same time, the arc of the sector area is determined with a predetermined radius r to obtain a sector area. The predetermined radius r may be a preset value, a value associated with the field of view of the camera of the terminal, or a value set by the user, for example, the predetermined radius r is 1200 meters. When the predetermined radius r is a value associated with the field of view of the camera of the terminal, the predetermined radius r is dynamically determined based on the elevation information of the camera of the terminal. In other words, the larger the elevation angle of the camera of the terminal with respect to the horizontal line, the larger the predetermined radius r; the smaller the elevation angle of the camera of the terminal with respect to the horizontal line, the smaller the predetermined radius r. At this time, the server may simultaneously acquire the elevation angle information of the camera of the terminal in step 401; then, before sub-step 2, determine the predetermined radius r according to the elevation angle information, and the magnitude of the predetermined radius r is positively correlated with the magnitude of the elevation angle represented by the elevation information. relationship.

Step 303: The server finds that the geographic location belongs to at least one target in the sector.

This step can include the following four sub-steps:

1. The server obtains the geographic location of the candidate's several targets.

The server obtains the geographic locations of the candidate's several targets. Specifically, after obtaining the geographic location of the terminal, the server selects several targets within a predetermined distance in the vicinity of the geographic location as candidate targets. It is assumed that the geographic locations of several targets of the candidate obtained by the server are the coordinates (x, y) in the initial coordinate system.

2. The server converts the geographic locations of the candidate targets into polar coordinates (p, θ) in the polar coordinate system.

The server may convert the geographic locations of the acquired plurality of targets to the polar coordinates in the polar coordinate system established in step 402. Referring to FIG. 3C, in particular, the server converts the geographical position (x, y) of the candidate targets in the initial coordinate system into the first coordinate (xl, yl) in the predetermined Cartesian coordinate system according to the first predetermined formula. The origin of the predetermined Cartesian coordinate system is determined by the geographic location (x ₀ , y ₀ ) of the terminal, and the X-axis forward direction of the predetermined Cartesian coordinate system is determined by the orientation information of the camera of the terminal, and the first predetermined formula is:

Xl=xcosa+ysina- ( x ₀ cosa+y ₀ sina );

y 1 =-xsina+ycosa- ( -x ₀ sina+y ₀ cosa ), where a is the z-axis positive direction of the Cartesian coordinate system and the counterclockwise direction is between the X-axis positive direction of the initial coordinate system Angle.

Converting the first coordinates (xl, yl) of the respective targets into a second coordinate (ρ, θ) in the polar coordinate system according to a second predetermined formula, the second predetermined formula being:

p=

( yl , xl ).

4. The server searches for at least one target in the sector based on the converted polar coordinates (ρ, Θ).

Then, the server searches for the geographic position according to the converted polar coordinates (ρ, Θ ) of the candidate targets. Set at least one target within the sector.

Step 304: If the predetermined condition further includes specifying the attribute, searching for the target that meets the specified attribute from the found at least one target.

When the server searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, the predetermined condition does not necessarily include only the geographical location of the target belongs to a predetermined range indicated by the location parameter of the terminal, and the predetermined condition includes the specified attribute, The specified attribute includes at least one of gender, age, status, occupation, category, address, and keyword. For example, the current user needs to query other users whose "1000 meters" and whose gender is "female" and whose age is between "18-45".

If the predetermined condition also includes specifying an attribute, the server also needs to find the target that meets the specified attribute again from at least one of the targets found in step 403.

It should be noted that the predetermined condition may also include other conditions. For example, when the terminal is a mobile phone, the predetermined condition may further include "a user who shakes the mobile phone at the same time as the current terminal." These other conditions may vary from one embodiment to another, but do not affect the description of the present invention, and therefore are not described herein.

Step 305: The server detects whether the number of the found targets exceeds a predetermined number.

Since the target found by the terminal needs to be superimposed on the display screen of the terminal for display, it is not necessary to find the target that meets the predetermined condition as much as possible. For this reason, after finding the target meeting the predetermined condition, the terminal needs to detect whether the number of the found targets exceeds a predetermined number.

Step 306: If the detection result is that the number of the queried targets exceeds a predetermined number, after the predetermined radius r is decreased by a predetermined amplitude, the arc of the sector area is re-determined with the reduced predetermined radius r, and the geographic area is searched. The location belongs to at least one of the re-determined sector regions; or, the target that does not exceed a predetermined number is randomly selected from the targets exceeding a predetermined number.

If the result of the detection is that the number of targets that meet the predetermined conditions exceeds a predetermined number, the terminal needs to reduce the target, and the reduction is performed in the following two ways.

One way is that after the server reduces the predetermined radius r by a predetermined amplitude, the arc of the sector region is re-determined with the reduced predetermined radius r, and the geographical location belongs to at least one of the redefined sectors. For example, the original predetermined radius r is 1000 meters, and the reduced predetermined radius r is 500 meters. Since the sector area is reduced, the target that is re-discovered to meet the predetermined condition is generally reduced accordingly, and this step can be Execute multiple times until the target that meets the predetermined conditions is found to not exceed the predetermined number. The number of goals.

For example, if the number of targets found by the server that meet the predetermined conditions is 148 and the number of reservations is five, the terminal can randomly select no more than five targets from the 148 targets that are found.

It can be seen that, if the number of the target that meets the predetermined condition is not more than the predetermined number, the terminal increases the predetermined radius r by a predetermined amplitude, and then re-determines the arc of the sector area with the increased predetermined radius r. And finding at least one target in the sector that belongs to the re-determined geographic location. At this point, the terminal is generally able to find more targets that meet the predetermined conditions.

In step 307, the server determines the display location of the information of the target according to the relative geographic location between the target and the terminal.

Since the relative geographic location between the target and the terminal includes a relative direction and a relative distance between the target and the terminal, the server determines the display position of the information of the target in the first display dimension of the terminal according to the relative direction between the target and the terminal. And determining a display position of the information of the target on the second display dimension of the terminal according to the relative distance between the target and the terminal.

Typically, the first display dimension of the terminal is perpendicular to the second display dimension, the first display dimension is the horizontal display dimension of the terminal relative to the ground, and the second display dimension is the vertical display dimension of the terminal relative to the ground.

Specifically, the server determines the display position of the information of each target on the first display dimension of the terminal and the display position on the second display dimension of the terminal according to the polar coordinates of each target found.

For each target, the polar coordinate angle 该 of the target is used as a variable, and the display position X, X=fx ( Θ ) of the information of the target in the first display dimension of the terminal is determined, and X is less than or equal to the screen width of the terminal. .

For each target, the polar coordinate distance p of the target is used as a variable, and the display position Y, Y=fx ( p ) of the information of the target in the second display dimension of the terminal is determined, and Y is less than or equal to the screen height of the terminal. .

The screen parameters of the terminal may be obtained by the server after obtaining the identifier of the terminal. This is a prior art and will not be described again.

X=fx ( Θ ) = ( ( β - θ ) /2β ) * W; Y = fx ( p ) = ( p / r ) * H. For example, the polar coordinates of the target are (200 meters, 40 degrees), β is 60 degrees, r is 1000 meters, W=200 pixels, H=400 pixels, then the display position of the target in the first display dimension is X=50 pixels. , Y = 80 pixels. It can be seen that the display position of the target in the first display dimension indicates the actual position of the target relative to the terminal in the current camera view, and the display position on the second display dimension of the target indicates the target relative to the terminal. Far and near, the higher the display position on the second display dimension, the farther the target is from the terminal; the lower the display position on the second display dimension, the closer the target is to the terminal.

Step 308: The server sends the information of the target and the display position of the information of the target to the terminal.

At this time, the server transmits the finally found information of the target meeting the predetermined condition, and the display position of the information of the target in the first display dimension and the display position on the second display dimension to the terminal.

Correspondingly, the terminal receives the information of the target transmitted by the server and the display position of the information of the target. Step 309: The terminal superimposes the information of the at least one target according to the display position on the displayed real-time street view image.

Finally, the terminal superimposes the information of the target on the real-time street view image according to the display position on the first display dimension of the terminal and the display position on the second display dimension, and the display position on the first display dimension is according to the target and the terminal. The relative direction is determined, and the display position in the second display dimension is determined according to the relative distance between the target and the terminal, and the effect diagram can be referred to as shown in FIG. 3D. The target information includes at least one of an avatar, a nickname, an IP address, and an introduction.

It should be noted that the above process may be performed more than once, but once every predetermined time interval, for example: The terminal reports its own position parameter to the server every 1 second, even if the terminal moves horizontally or horizontally. However, since the location parameter reported by the terminal to the server is the latest each time, the display position of the target changes accordingly on the screen following the movement of the terminal. In another implementation manner, the terminal can report the location parameter to the server while remaining still, and re-report the location parameter to the server each time the motion occurs.

In summary, the target search method provided by the embodiment of the present invention searches for at least one target that meets a predetermined condition by using a location parameter of the terminal, and superimposes on the real-time street view image displayed by the terminal according to the relative geographic location between the target and the terminal. Displaying information of at least one target can display the relative geographical position between the target and the terminal in the real-time street view image, and more clearly show the actual geographical position of the target.

In addition, adaptive adjustment is also achieved by dynamically changing the predetermined radius r to increase or decrease the number of found targets that meet the predetermined condition, such that the number of search targets differs greatly from the expected number. By determining the magnitude of the predetermined radius r by the elevation information of the terminal, it is possible to trigger the search for a target in a range of different sizes by simply performing the operation of tilting the terminal.

As the computing power of the terminal becomes stronger, as a possible implementation manner, many computing functions in the foregoing target searching method can also be carried by the terminal. For example, please refer to FIG. 4A, which shows a flowchart of a method for a target search method provided by another embodiment of the present invention. This embodiment is mainly illustrated by applying the target search method to the implementation environment shown in FIG. 1. The target search method includes the following steps.

Step 401: The terminal acquires a location parameter of the terminal.

First, the terminal acquires the location parameter of the terminal. The location parameter of the terminal usually includes the geographic location of the terminal and the orientation information of the camera of the terminal, and may also include the elevation information of the camera of the terminal and the motion information of the terminal.

Specifically, if the location parameter of the terminal includes the geographic location of the terminal, the terminal acquires its geographic location by using an LBS (Location Based Service) positioning technology; the LBS positioning technology includes but is not limited to: GPS (Global Positioning) System, Global Positioning System) At least one of positioning technology, COO (Cell of Origin) positioning technology, TDOA (Time Difference of Arrival) positioning technology.

If the location parameter of the terminal includes the orientation information of the camera of the terminal, the terminal acquires the orientation information of the camera of the terminal through the built-in electronic compass sensor.

After that, the terminal searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, and the predetermined condition includes that the geographical location of the target belongs to a predetermined range indicated by the location parameter of the terminal. The search process is as follows in step 402 to step 406.

Step 402: The terminal determines a sector area according to the position parameter of the terminal. The center angle vertices of the sector area are determined by the geographic location of the terminal, and the angle bisector of the central angle of the sector area is determined by the orientation information of the camera.

The location parameter of the terminal includes at least the geographic location of the terminal and the orientation information of the camera in the terminal. Specifically, this step includes the following sub-steps.

1. Using the geographic location of the terminal as the origin, the polar coordinate system is established with the orientation of the camera in the terminal as the polar axis. Referring to FIG. 4B, it is assumed that the geographical position of the terminal in the initial coordinate system is (x., y.), and the orientation of the camera is as shown by the ray a, and the point identified by (Xo, y _Q ) is used as the polar coordinate system. The origin of the polar coordinate system is established by using the ray a as the polar axis in the polar coordinate system. On both sides of the corner, the arc of the sector area is determined by a predetermined radius r to obtain a sector area.

At the same time, the arc of the sector area is determined at a predetermined radius r to obtain a sector area. The predetermined radius r may be a preset value, a value associated with the field of view of the camera of the terminal, or a value set by the user, for example, the predetermined radius r is 1200 meters.

When the predetermined radius r is a value associated with the field of view of the camera of the terminal, the predetermined radius r is dynamically determined based on the elevation information of the camera of the terminal. In other words, the larger the elevation angle of the camera of the terminal with respect to the horizontal line, the larger the predetermined radius r; the smaller the elevation angle of the camera of the terminal with respect to the horizontal line, the smaller the predetermined radius r. At this time, the terminal may simultaneously acquire the elevation angle information of the camera of the terminal in step 401; then, before sub-step 2, determine the predetermined radius r according to the elevation angle information, and the magnitude of the predetermined radius r is positively correlated with the magnitude of the elevation angle represented by the elevation information. relationship.

Step 403: The terminal searches for at least one target whose geographic location belongs to the sector.

This step can include the following three sub-steps:

1. The terminal acquires the geographical location of the candidate target objects from the server;

The terminal can obtain the geographical location of the candidate several targets from the server. Specifically, the terminal may send its own geographic location to the server, and then after receiving the geographic location, the server selects several targets within a predetermined distance in the vicinity of the geographic location as candidate targets, and then selects the target of the candidate. The location of the location is fed back to the terminal. Generally speaking, the terminal also obtains information about the candidate targets at the same time, so that it can be used for subsequent display.

Assume that the geographic location of several targets of the candidate acquired by the terminal is the coordinates in the initial coordinate system.

( x, y ).

2. The terminal converts the geographic locations of the candidate targets into polar coordinates (ρ, θ) in the polar coordinate system; the terminal may convert the geographic locations of the plurality of targets obtained from the server into steps Polar coordinates in the polar coordinate system established in 302. Referring to FIG. 3C, specifically:

The terminal converts the geographical position (x, y) of the candidate target in the initial coordinate system into a first coordinate (xl, yl) in a predetermined Cartesian coordinate system according to a first predetermined formula, and the origin of the predetermined Cartesian coordinate system is The geographic location (xo, y _Q ) of the terminal determines that the X-axis forward direction of the predetermined Cartesian coordinate system is determined by the orientation information of the camera of the terminal, and the first predetermined formula is:

Xl=xcosa+ysina- ( x ₀ cosa+y ₀ sina );

y 1 =-xsina+ycosa- ( -x ₀ sina+y ₀ cosa ), where a is the z-axis positive direction of the Cartesian coordinate system and the counterclockwise direction is between the X-axis positive direction of the initial coordinate system Angle

Converting the first coordinate (χ1, yl) of each target into a second coordinate (ρ, θ) in the polar coordinate system according to a second predetermined formula, the second predetermined formula being:

( yl , xl ).

3. The terminal searches for at least one target whose geographic location belongs to the sector based on the converted polar coordinates (ρ, Θ).

Then, the terminal finds at least one target whose geographical position belongs to the sector based on the converted polar coordinates (ρ, Θ ) of the candidate respective targets.

Step 404: If the predetermined condition further includes specifying the attribute, searching for the target that meets the specified attribute from the found at least one target.

When the terminal searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, the predetermined condition does not necessarily include only the geographical location of the target belongs to a predetermined range indicated by the location parameter of the terminal, and the predetermined condition includes the specified attribute, The specified attribute includes at least one of gender, age, status, occupation, category, address, and keyword. For example, the current user needs to query other users whose "1000 meters" and whose gender is "female" and whose age is between "18-35".

If the predetermined condition further includes specifying the attribute, the terminal further needs to find the target that meets the specified attribute again from the at least one target found in step 403.

Step 405: The terminal detects whether the number of the found targets exceeds a predetermined number.

Since the target found by the terminal needs to be superimposed on the display screen of the terminal for display, it is not necessary to find the target that meets the predetermined condition as much as possible. To this end, the terminal is found to meet the predetermined bar. After the target of the piece, it is necessary to detect whether the number of targets found exceeds a predetermined number.

Step 406: If the detection result is that the number of the queried targets exceeds a predetermined number, after the predetermined radius r is decreased by a predetermined amplitude, the arc of the sector area is re-determined with the reduced predetermined radius r, and the geographic area is searched The location belongs to at least one of the re-determined sector regions; or, the target that does not exceed a predetermined number is randomly selected from the targets exceeding a predetermined number.

If the result of the detection is that the number of targets meeting the predetermined conditions exceeds a predetermined number, the terminal needs to reduce the target, and there are two ways to reduce, as follows:

First, after the terminal reduces the predetermined radius r by a predetermined amplitude, the arc of the sector region is re-determined with the reduced predetermined radius r, and the geographic location belongs to at least one target in the re-determined sector region; for example, The original predetermined radius r is 1000 meters, and the reduced predetermined radius r is 500 meters. Since the sector area is reduced, the target that is re-discovered to meet the predetermined condition is generally reduced accordingly, and this step can be performed more. Second, until the found target meeting the predetermined condition does not exceed the predetermined number. For example, if the number of targets that the terminal finds that meet the predetermined conditions is 138, and the predetermined number is five, the terminal can randomly select no more than five targets from the 138 targets that are found.

If the number of targets met by the terminal that meet the predetermined condition does not exceed a predetermined number, the terminal increases the predetermined radius r by a predetermined amplitude, and then re-determines the arc of the sector area with the increased predetermined radius r, and searches for the geographical position. Belonging to at least one of the redefined sectors. At this point, the terminal is generally able to find more targets that meet the predetermined conditions.

Step 407: The terminal determines the display position of the information of the target according to the relative geographical position between the target and the terminal.

Since the relative geographic location between the target and the terminal includes a relative direction and a relative distance between the target and the terminal, the terminal determines a display position of the information of the target in the first display dimension of the terminal according to the relative direction between the target and the terminal, and The display position of the information of the target in the second display dimension of the terminal is determined according to the relative distance between the target and the terminal.

Specifically, the terminal determines the display position of the information of each target in the first display dimension of the terminal and the display position on the second display dimension according to the polar coordinates of each target found.

For each target, the polar coordinate angle 该 of the target is used as a variable, and the information of the target is determined to be final. The display position X, X=fx ( Θ ), on the first display dimension of the end, and X is less than or equal to the screen width w of the terminal.

X=fx ( θ ) = ( ( β - θ ) /2β ) * W; Y = fx ( ρ ) = ( p / r ) * Η. For example, the polar coordinates of the target are (200 meters, 40 degrees), β is 60 degrees, r is 1000 meters, W=200 pixels, H=400 pixels, then the display position of the target in the first display dimension is X=50 pixels. , Y = 80 pixels. It can be seen that the display position of the target in the first display dimension indicates the actual position of the target relative to the terminal in the current camera view, and the display position on the second display dimension of the target indicates the target relative to the terminal. Far and near, the higher the display position on the second display dimension, the farther the target is from the terminal; the lower the display position on the second display dimension, the closer the target is to the terminal.

Step 408: The terminal superimposes the information of the at least one target according to the display position on the displayed real-time street view image.

Finally, the terminal superimposes the information of the target on the real-time street view image according to the display position on the first display dimension of the terminal and the display position on the second display dimension, and the display position on the first display dimension is according to the target and the terminal. The relative direction is determined, and the display position in the second display dimension is determined according to the relative distance between the target and the terminal, and the effect diagram can be referred to as shown in FIG. 3D. The target information includes at least one of an avatar, a nickname, an IP address, a gender, an age, a status, an occupation, a category, an address, and a keyword. The information of the target 33 shown in Fig. 3D is exemplified by an avatar, a nickname and a gender.

In addition, adaptive adjustment is also achieved by dynamically changing the predetermined radius r to increase or decrease the number of found targets that meet the predetermined condition, such that the number of search targets differs greatly from the expected number. The determination of the predetermined radius r by the elevation information of the terminal makes it possible to trigger the search of the target within a range of different sizes by simply performing the operation of tilting the terminal. The following is an apparatus embodiment of the present invention. For content that is not described in detail in the device embodiment, reference may be made to the description of the corresponding method embodiment. Please refer to FIG. 5, which is a structural block diagram of a target search apparatus according to an embodiment of the present invention. The target lookup device can be implemented as all or part of the server. The target search device includes: a parameter receiving module 520, a target finding module 540, a position determining module 560, and an information sending module 580.

The parameter receiving module 520 is configured to acquire a position parameter of the terminal.

The target search module 540 is configured to search for at least one target that meets a predetermined condition according to the location parameter of the terminal acquired by the parameter obtaining module 520, where the predetermined condition includes a geographic location of the target belongs to a location parameter of the terminal. Within the predetermined range indicated.

The location determining module 560 is configured to determine a display location of the information of the target according to a relative geographic location between the target and the terminal.

The information sending module 580 is configured to send the information of the target and the display position of the information of the target to the terminal, so that the terminal superimposes the found information of the at least one target according to the display position on the displayed real-time street image. .

In summary, the target search device provided by the embodiment of the present invention searches for at least one target that meets a predetermined condition by using a location parameter of the terminal, and superimposes on the real-time street view image displayed by the terminal according to the relative geographic location between the target and the terminal. Displaying information of at least one target can display the relative geographical position between the target and the terminal in the real-time street view image, and more clearly show the actual geographical position of the target. Please refer to FIG. 6, which is a block diagram showing the structure of a target search device according to another embodiment of the present invention. The target lookup device can be implemented as all or part of the server. The target finding device includes: a parameter obtaining module 520, a target finding module 540, a position determining module 560, and a target display module 580.

The parameter obtaining module 520 is configured to acquire a location parameter of the terminal.

The target search module 540 is configured to search for at least one target that meets a predetermined condition according to the location parameter of the terminal acquired by the parameter obtaining module 520, where the predetermined condition includes a geographic location of the target belongs to a location parameter of the terminal. Within the predetermined range indicated. The location determining module 560 is configured to determine a display location of the information of the target according to the relative geographic location between the target and the terminal found by the target finding module 540.

The information sending module 580 is configured to send the information of the target and the display position of the information of the target to the terminal, so that the terminal displays the found at least according to the display position superimposed on the displayed real-time street image. Information about a target.

Specifically, the relative geographic location includes a relative direction and a relative distance between the target and the terminal, and the location determining module 560 includes: a first determining unit 562 and a second determining unit 564. The display location of the information of the target on the first display dimension of the terminal.

The second determining unit 564 is configured to determine, according to a relative distance between the target and the terminal, a display position of the information of the target in a second display dimension of the terminal.

Specifically, the location parameter includes a geographic location of the terminal and orientation information of the camera in the terminal, and the target search module 540 includes: an area determining unit 542 and a target finding unit 544.

The area determining unit 542 is configured to determine a sector area according to the position parameter of the terminal acquired by the parameter obtaining module, where a central point apex of the sector area is determined by a geographic location of the terminal, the sector area The angle bisector of the central angle of the circle is determined by the orientation information of the camera.

The target searching unit 544 is configured to find at least one target in the sector area determined by the area determining unit 542.

Further, the area determining unit 542 includes: a coordinate establishing subunit and a region determining subunit (not specifically shown).

The coordinate establishing subunit is configured to establish a polar coordinate system by using a geographic location of the terminal as an origin and a direction of the camera in the terminal as a polar axis. The ray determines both sides of the central angle of the sector, and the arc of the sector is determined with a predetermined radius r to obtain the sector.

The target search unit 544 includes: a candidate acquisition subunit, a coordinate conversion subunit, and a coordinate lookup subunit (not specifically shown).

The candidate acquisition subunit is configured to acquire a geographic location of a plurality of candidate targets.

The coordinate conversion subunit is configured to convert a geographic location of the target of the candidate into a location The polar coordinates (p, θ) in the polar coordinate system.

The coordinate search subunit is configured to find, according to the converted polar coordinates (ρ, Θ), at least one target whose geographic location belongs to the sector.

Further, the coordinate conversion subunit is configured to convert a geographical position (x, y) of the plurality of targets in the initial coordinate system into a first coordinate in a predetermined rectangular coordinate system according to a first predetermined formula ( Xl, yl ), an origin of the predetermined Cartesian coordinate system is determined by a geographical position (Xo, y ₀ ) of the terminal, and an X-axis forward direction of the predetermined Cartesian coordinate system is determined by orientation information of the camera, The first predetermined formula is:

Xl=xcosa+ysina- ( x ₀ cosa+y ₀ sina );

Yl=-xsina+ycosa- ( -x ₀ sina+y ₀ cosa ), where a is the x-axis positive direction of the subordinate fixed Cartesian coordinate system pointing in the counterclockwise direction to the X-axis forward direction of the initial coordinate system The angle between.

Converting a first coordinate (xl, yl) of the plurality of targets of the candidate into a second coordinate (ρ, θ) in the polar coordinate system according to a second predetermined formula, the second predetermined formula being:

( yl , xl ).

Further, the target search module 540 further includes: an attribute searching unit 546.

The attribute searching unit 546 is configured to: if the predetermined condition further includes the specified attribute, search for the target that meets the specified attribute again from at least one of the targets searched by the target search unit.

The specified attribute includes at least one of gender, age, status, occupation, category, address, and keyword.

Further, the target search module 540 further includes: a number detecting unit 548a and a radius adjusting unit 548b.

The number detecting unit 548a is configured to detect whether the number of the targets searched by the target searching unit exceeds a predetermined number.

The radius adjusting unit 548b is configured to reduce the predetermined radius r by a predetermined amount after the detection result of the number detecting unit 548a is that the number of the targets exceeds a predetermined number. Redetermining an arc of the sector area by a predetermined radius r, and finding that the geographic location belongs to at least one of the re-determined sector areas; or randomly selecting no more than the predetermined number of objects Schedule a number of goals.

Further, the area determining unit 542 further includes: an elevation angle obtaining subunit and a radius determining subunit (not specifically shown). The elevation angle obtaining subunit is configured to acquire elevation angle information of a camera of the terminal. The radius determining subunit is configured to determine the predetermined radius r according to the elevation information acquired by the elevation angle acquiring unit, and the magnitude of the predetermined radius r is positively correlated with the magnitude of the elevation angle represented by the elevation information. relationship.

Further, the first determining unit 562 is configured to determine, for each target, a display position of the information of the target in a first display dimension of the terminal by using a polar coordinate angle 所述 of the target as a variable. , the value of x=fx ( e ), and the X is less than or equal to the screen width of the terminal.

The second determining unit 564 is configured to determine, for each target, a display position Y of the information of the target in a second display dimension of the terminal by using a polar coordinate distance p of the target as a variable, Y=fx ( p ), and the Y is less than or equal to the screen height 11 of the terminal.

Further, the X = fx ( Θ ) = ( ( β - θ ) /2 β ) * W; the Y = fx ( p ) = ( p / r ) * H. In summary, the target search device provided by the embodiment of the present invention searches for at least one target that meets a predetermined condition by using a location parameter of the terminal, and superimposes on the real-time street view image displayed by the terminal according to the relative geographic location between the target and the terminal. Displaying information of at least one target can display the relative geographical position between the target and the terminal in the real-time street view image, and more clearly show the actual geographical position of the target.

In addition, adaptive adjustment is also achieved by dynamically changing the predetermined radius r to increase or decrease the number of found targets that meet the predetermined condition, such that the number of search targets differs greatly from the expected number. By determining the magnitude of the predetermined radius r by the elevation information of the terminal, it is possible to trigger the search for a target in a range of different sizes by simply performing the operation of tilting the terminal. Referring to Figure 7, there is shown a block diagram showing the structure of a target finding device provided by an embodiment of the present invention. The target finding device can be implemented as all or part of the terminal. The target finding means includes: a parameter transmitting module 510, an information receiving module 530, and an information display module 550.

The parameter sending module 510 is configured to send a location parameter of the terminal to the server, so that the server receives the location parameter of the terminal, and the server searches for at least one target that meets the predetermined condition according to the location parameter of the terminal, where the predetermined condition includes The geographic location of the target belongs to a predetermined range indicated by the location parameter of the terminal, and the server determines a display location of the information of the target according to a relative geographic location between the target and the terminal, and the target is The information and the display location of the information of the target are sent to the terminal. The information receiving module 530 is configured to receive information about the target sent by the server and a display location of the information of the target.

The information display module 550 is configured to superimpose the information of the at least one target according to the display position on the displayed real-time street view image.

The relative geographic location includes a relative direction and a relative distance between the target and the terminal. The information display module 550 is configured to superimpose and display the information of the target on the real-time street view image according to the display position on the first display dimension of the terminal and the display position on the second display dimension, where the first display dimension is The display position is determined according to a relative direction between the target and the terminal, and the display position in the second display dimension is determined according to a relative distance between the target and the terminal.

The server in this embodiment may be the server provided in the embodiment shown in Fig. 5 or Fig. 6. In summary, the target search device provided by the embodiment of the present invention searches for at least one target that meets a predetermined condition by using a location parameter of the terminal, and superimposes on the real-time street view image displayed by the terminal according to the relative geographic location between the target and the terminal. Displaying information of at least one target can display the relative geographical position between the target and the terminal in the real-time street view image, and more clearly show the actual geographical position of the target.

It should be noted that, when the target search device provided by the foregoing embodiment is used for searching for a target, only the division of the above functional modules is illustrated. In actual applications, the function distribution may be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above. In addition, the target search device and the target search method are provided in the same embodiment. For details, refer to the method embodiment, and details are not described herein. Please refer to FIG. 8, which is a structural block diagram of a target search system according to an embodiment of the present invention. The target lookup system includes a terminal 820 and a server 840. The terminal 820 and the server 840 are connected by a wired network or a wireless network. The terminal 820 includes the target finding means provided by the embodiment shown in FIG. The server 840 includes the target finding means provided by the embodiment shown in Fig. 5 or Fig. 6 above. Please refer to FIG. 9, which is a structural block diagram of a target search apparatus according to an embodiment of the present invention. As shown in FIG. 9, the target search device 900 includes, for example, one or more processors 901, a memory. 902 and one or more applications 903 stored on memory 902 for execution by one or more processors 901. The application 903 includes, for example, the instructions for performing the steps of the steps 202-208 in the method embodiment of FIG. 2, and the detailed process is described in the method embodiment, and details are not described herein again.

Please refer to FIG. 10, which shows a structural block diagram of a target search device according to another embodiment of the present invention. As shown in FIG. 10, target lookup device 1000 includes, for example, one or more processors 1001, memory 1002, and one or more applications 1003 stored on memory 1002 for execution by one or more processors 1001. The application 1003 includes, for example, instructions for performing the steps 301-308 of the method embodiment of FIG. 3A. For details, refer to the description in the method embodiment, and details are not described herein again.

Referring to Figure 11, there is shown a block diagram showing the structure of a target finding apparatus provided by still another embodiment of the present invention. As shown in FIG. 11, target lookup device 1100 includes, for example, one or more processors 1101, memory 1102, and one or more applications 1103 stored on memory 1102 for execution by one or more processors 1101. The application 1103 includes, for example, instructions for performing the steps of steps 401-408 in the method embodiment of FIG. 4, and the detailed process is described in the method embodiment, which is not described herein. The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

claims

1. A target search method, characterized in that the method includes:

Receive the location parameters of the terminal;

Searching for at least one target that meets predetermined conditions according to the location parameters of the terminal, the predetermined conditions including that the geographical location of the target falls within a predetermined range indicated by the location parameters of the terminal; According to the relationship between the target and the terminal The relative geographical location between the two determines the display location of the target information;

The information of the target and the display position of the information of the target are sent to the terminal, so that the terminal superimposes and displays the information of the at least one target on the displayed real-time street view image according to the display position.

2. The target search method according to claim 1, wherein the relative geographical location includes the relative direction and relative distance between the target and the terminal, and the The relative geographical location determines the display location of the target information, including:

Determine the display position of the target's information on the first display dimension of the terminal according to the relative direction between the target and the terminal;

The display position of the information of the target on the second display dimension of the terminal is determined according to the relative distance between the target and the terminal.

3. The target search method according to claim 2, wherein the location parameter includes the geographical location of the terminal and the orientation information of the camera in the terminal, and the location parameter according to the terminal Find at least one target that meets predetermined criteria, including:

A sector-shaped area is determined according to the position parameters of the terminal, the central angle vertex of the sector-shaped area is determined by the geographical location of the terminal, and the angular bisector of the central angle of the sector-shaped area is determined by the orientation information of the camera;

Find at least one target whose geographical location falls within the sector area.

4. The target search method according to claim 3, wherein the determining a sector area according to the position parameters of the terminal includes: Using the geographical location of the terminal as the origin and the orientation of the camera in the terminal as the polar axis, a polar coordinate system is established; on both sides of the central angle, the arc of the sector-shaped area is determined with a predetermined radius r to obtain the Sector area; The searched geographical location belongs to at least one target within the sector area, including:

Obtain the geographical locations of several candidate targets;

Convert the geographical locations of the candidate targets into polar coordinates (p,

Θ );

Find at least one target whose geographical location belongs to the sector area according to the converted polar coordinates (ρ, Θ).

5. The target search method according to claim 4, wherein said converting the geographical locations of several candidate targets into polar coordinates (ρ, θ) in the polar coordinate system includes:

The geographical locations (x, y) of the several candidate targets in the initial coordinate system are converted into first coordinates (xl, yl) in the predetermined rectangular coordinate system according to the first predetermined formula. The origin is determined by the geographical location (x _Q , y _Q ) of the terminal, the positive direction of the X-axis of the predetermined rectangular coordinate system is determined by the orientation information of the camera, and the first predetermined formula is:

xl=xcosa+ysina- (x ₀ cosa+y ₀ sina);

y 1 =-xsina+ycosa- (-x ₀ sina+y ₀ cosa), where a is the positive x-axis of the sub-rectangular coordinate system pointing in the counterclockwise direction to the positive x-axis of the initial coordinate system the angle between directions;

Convert the first coordinates (xl, yl) of the candidate targets into second coordinates (ρ, θ) in the polar coordinate system according to a second predetermined formula, and the second predetermined formula is:

( yl , xl ).

6. The target search method according to any one of claims 3 to 5, characterized in that, after the search for at least one target whose geographical location belongs to the sector-shaped area, it further includes:

If the predetermined condition also includes a specified attribute, then search again for a target that matches the specified attribute from at least one of the found targets;

Wherein, the specified attributes include at least one of gender, age, status, occupation, category, address and keywords.

7. The target search method according to claim 4 or 5, characterized in that after the search geographical location belongs to at least one target in the sector area, it further includes:

Detect whether the number of targets found by the target search unit exceeds a predetermined number; if the detection result is that the number of targets exceeds a predetermined number, then reduce the predetermined radius r by a predetermined amount, with Re-determine the arc of the sector-shaped area with the reduced predetermined radius r, and find at least one target whose geographical location belongs to the re-determined sector-shaped area; or, from all targets exceeding the predetermined number

8. The target search method according to claim 4 or 5, characterized in that, the ray at a predetermined angle β and the ray at a predetermined angle -β determine both sides of the central angle of the sector-shaped area, with a predetermined radius. r Determining the arc of the sector-shaped area. Before obtaining the sector-shaped area, the method further includes: obtaining the elevation angle information of the camera of the terminal;

The predetermined radius r is determined according to the elevation angle information, and the numerical value of the predetermined radius r is positively correlated with the elevation angle represented by the elevation angle information.

9. The target search method according to claim 4 or 5, characterized in that: the information that determines the target based on the relative direction between the target and the terminal is in the first display dimension of the terminal. The display position; determining the display position of the target information on the second display dimension of the terminal according to the relative distance between the target and the direction of the terminal, including:

For each target, using the polar coordinate angle Θ of the target as a variable, determine the display position X of the target information on the first display dimension of the terminal, where X=fx (0), and X is less than or equal to the screen width W of the terminal;

For each target, using the polar coordinate distance p of the target as a variable, determine the display position Y of the target information on the second display dimension of the terminal, the Y=fx (p), and the Y is less than or equal to the screen height of the terminal 11.

10. The target search method according to claim 9, characterized in that:

The X=fx (Θ) = ((β-θ)/2β) * W;

The Y=fx (p) = (p/r) *H.

11. A target search method, characterized in that the method includes:

Send the location parameter of the terminal to the server; so that the server receives the location parameter of the terminal, and the server searches for at least one target that meets predetermined conditions according to the location parameter of the terminal, and the predetermined condition includes that the geographical location of the target belongs to the location parameter of the terminal. within a predetermined range indicated by the location parameter of the terminal, the server determines the display location of the target information based on the relative geographical location between the target and the terminal, and combines the target information and the target information. The display position of the information is sent to the terminal;

Receive the information of the target and the display position of the information of the target sent by the server; superimpose and display the information of the at least one target on the displayed real-time street view image according to the display position.

12. The target search method according to claim 11, wherein the relative geographical location includes the relative direction and relative distance between the target and the terminal, and the displayed real-time street view image is based on the The display position superimposes and displays the information of the at least one target, including:

The information of the target is superimposed on the real-time street view image according to the display position in the first display dimension of the terminal and the display position in the second display dimension, and the display position in the first display dimension is determined by the server. The display position in the second display dimension is determined by the server according to the relative distance between the target and the terminal.

13. A target search device, characterized in that the device includes:

Parameter receiving module, used to receive the position parameters of the terminal;

A target search module, configured to search for at least one target that meets predetermined conditions according to the location parameters of the terminal obtained by the parameter acquisition module. The predetermined conditions include that the geographical location of the target belongs to the location parameter indicated by the terminal. within the predetermined range; the display position of the information about the target;

An information sending module, configured to send the target information and the display position of the target information to the terminal, so that the terminal can superimpose and display at least one of the found objects on the displayed real-time street view image according to the display position. target information.

14. The target search device according to claim 13, wherein the relative geographical position includes the relative direction and relative distance between the target and the terminal, and the position determination module includes: first determination unit and the second determining unit; the display position of the target information on the first display dimension of the terminal;

The second determining unit is configured to determine the display position of the target information in the second display dimension of the terminal according to the relative distance between the target and the terminal.

15. The target search device according to claim 14, wherein the location parameter includes the geographical location of the terminal and the orientation information of the camera in the terminal, and the target search module includes: area Identify units and target search units;

The area determination unit is configured to determine a sector-shaped area according to the location parameters of the terminal obtained by the parameter acquisition module. The central angle vertex of the sector-shaped area is determined by the geographical location of the terminal. The angle bisector of the central angle is determined by the orientation information of the camera;

The target search unit is used to search for at least one target whose geographical location belongs to the sector area determined by the area determination unit.

16. The target search device according to claim 15, characterized in that the area determination unit includes: a coordinate establishment subunit and an area determination subunit;

The coordinate establishment subunit is used to establish a polar coordinate system with the geographical location of the terminal as the origin and the orientation of the camera in the terminal as the polar axis; rays determine both sides of the central angle of the sector area, Determine the arc of the sector-shaped area with a predetermined radius r to obtain the sector-shaped area;

The target search unit includes: a candidate acquisition subunit, a coordinate conversion subunit and a coordinate search subunit;

The candidate acquisition subunit is used to acquire the geographical locations of several candidate targets;

The coordinate conversion subunit is used to convert the geographical locations of several candidate targets into polar coordinates (ρ, Θ) in the polar coordinate system;

The coordinate search subunit is used to search for geographical location attributes based on the converted polar coordinates (ρ, Θ). at least one target within the sector area.

17. The target search device according to claim 16, characterized in that the coordinate conversion subunit is used to convert the geographical locations (x, y) of the several candidate targets in the initial coordinate system according to the first The predetermined formula is converted into the first coordinate (xl, yl) in the predetermined rectangular coordinate system. The origin of the predetermined rectangular coordinate system is determined by the geographical location (xo, _yQ ) of the terminal. The X of the predetermined rectangular coordinate system The forward direction of the axis is determined by the orientation information of the camera, and the first predetermined formula is:

xl=xcosa+ysina- (x ₀ cosa+y ₀ sina);

( yl , xl ).

18. The target search device according to any one of claims 15 to 17, characterized in that the target search module further includes: an attribute search unit;

The attribute search unit is configured to, if the predetermined condition also includes a specified attribute, search again for a target that matches the specified attribute from at least one of the targets found by the target search unit; wherein, the specified attribute Including at least one of gender, age, status, occupation, category, address and keywords.

19. The target search device according to claim 15 or 17, characterized in that the target search module further includes: a number detection unit and a radius adjustment unit;

The number detection unit is used to detect whether the number of targets found by the target search unit exceeds a predetermined number;

The radius adjustment unit is configured to, if the detection result of the number detection unit is that the number of targets exceeds a predetermined number, then reduce the predetermined radius r by a predetermined amplitude to the reduced predetermined radius r Redefine the arc of the sector-shaped area, and search for a predetermined number of targets whose geographical locations belong to the re-determined sector-shaped area.

20. The target search device according to claim 16 or 17, characterized in that the area determination unit further includes: an elevation angle acquisition subunit and a radius determination subunit;

The elevation angle acquisition subunit is used to obtain the elevation angle information of the camera of the terminal;

The radius determination subunit is used to determine the predetermined radius r according to the elevation information obtained by the elevation acquisition unit. The numerical value of the predetermined radius r is positively correlated with the elevation angle represented by the elevation information. relation.

21. The target search device according to claim 16 or 17, characterized in that:

The first determination unit is configured to determine, for each target, the display position X of the target's information on the first display dimension of the terminal, using the polar coordinate angle Θ of the target as a variable. =fx

( θ ), and the X is less than or equal to the screen width w of the terminal;

The second determination unit is configured to determine, for each target, the display position Y of the target's information on the second display dimension of the terminal, using the polar coordinate distance p of the target as a variable. =fx (p), and the Y is less than or equal to the screen height 11 of the terminal.

22. The target search device according to claim 21, characterized in that:

The X=fx (Θ) = ((β-θ)/2β) * W;

The Y=fx ( p ) = ( p/r ) *H.

23. A target search device, characterized in that the device includes:

A parameter sending module, configured to send the location parameters of the terminal to the server; so that the server receives the location parameters of the terminal, and the server searches for at least one target that meets predetermined conditions based on the location parameters of the terminal, and the predetermined conditions include the The geographical location of the target falls within a predetermined range indicated by the location parameter of the terminal, the server determines the display location of the target's information based on the relative geographical location between the target and the terminal, and converts the target's The information and the display position of the information of the target are sent to the terminal;

An information receiving module, configured to receive the target information and the display position of the target information sent by the server;

An information display module, configured to superimpose and display the information of the at least one target on the displayed real-time street view image according to the display position.

24. The target search device according to claim 23, wherein the relative geographical position includes the relative direction and relative distance between the target and the terminal;

The information display module is configured to superimpose and display the information of the target on the real-time street view image according to the display position on the first display dimension of the terminal and the display position on the second display dimension, the first display dimension The display position on the second display dimension is determined by the server based on the relative direction between the target and the terminal. The display position on the second display dimension is determined by the server based on the relative distance between the target and the terminal. Sure.

25. A computer-readable storage medium that stores one or more programs executed by a computer system, characterized in that the program includes instructions for performing the following steps:

Receive the location parameters of the terminal;

26. A computer-readable storage medium that stores one or more programs executed by a computer system, characterized in that the program includes instructions for performing the following steps: