CN101389011A - Device and method for sending GPS positioning information in videophone service - Google Patents

Abstract

The invention discloses a device for sending GPS positioning information in a videophone service, wherein, the GPS positioning module is used to obtain the GPS positioning information of the current position and send it to the mobile phone map module; the mobile phone map module is used to store the map information, and according to The received GPS positioning information determines the current map position of the mobile phone; the screenshot and image processing module intercepts the map of the location of the mobile phone from the map information according to the map position, and sends it to the video transmission format conversion module; the video transmission format conversion module is used to intercept The map is converted into a screenshot file in the transmission format and sent to the call processing module; the call processing module is used to replace the current video stream with the screenshot file in the video transmission format or insert it into the current video stream and send it to the other party in the call. The invention also discloses a method for sending GPS positioning information in the videophone service. The invention can conveniently transmit the position information of the person to the other party in real time.

Description

Device and method for sending GPS positioning information in videophone service

technical field

The invention mainly relates to the application field of mobile phones, in particular to a device and method for sending GPS positioning information in a mobile phone videophone.

Background technique

At present, mobile phone-assisted GPS positioning technology is developing vigorously. Through the combination of cell-ID positioning and A-GPS positioning, in ordinary mobile phone applications, the accuracy can reach meter level. Although there is still a gap with the accuracy of GPS high-end applications, ordinary user positioning can be realized. There is no problem with the street and approximate location.

At present, many mid-to-high-end mobile phone terminals already support built-in GPS receivers, and mobile phones without built-in GPS can also be connected to GPS receivers externally through Bluetooth, USB, etc. for positioning operations. And some mobile phones for special groups, such as the elderly and children, have gradually begun to popularize mobile phone positioning functions in consideration of factors such as protecting the safety of vulnerable groups.

Combining the positioning of the mobile phone with the geographic information system, that is, the electronic map, the corresponding location can be found on the electronic map according to the latitude and longitude information obtained from the positioning, thereby marking the user's location on the map. At present, mobile positioning applications support users' self-positioning, and under certain circumstances, support the query of other people's current positions.

On the other hand, mobile phone applications gradually enter the 3G field. With the great improvement of network transmission performance, a new service - videophone is gradually entering people's field of vision. This service enables the user to see the image captured by the other party's terminal while talking, and to communicate with voice and video at the same time, which greatly facilitates people's long-distance communication and communication. In the videophone service system, there is a technology called "replacement picture". Start this function, at this time, the other party will see the selected alternative picture in the video window of the mobile phone. The main principle of the picture-replacing technology is that the sender converts the picture into code, converts the still picture into the H.263 format video stream transmitted in the video phone, and transmits the video signal captured by the camera to the other party instead.

However, in the current mobile terminal, the technology for users to actively transmit their own location information to their friends is still relatively lacking. When a party that can be located wishes to actively tell another user's own location information, there is no quick and easy way.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device for sending GPS positioning information in the videophone service, which can conveniently transmit the person's location information to the other party in real time.

In order to solve the above problems, the present invention provides a device for sending GPS positioning information in videophone services, including: a GPS positioning module, a mobile phone map module, a screenshot and image processing module, a video transmission format conversion module and a call processing module, wherein ,

GPS positioning module, used to obtain the GPS positioning information of the current position, and send the GPS positioning information to the mobile phone map module;

The mobile phone map module is used to store map information, and determine the current map position of the mobile phone according to the received GPS positioning information;

The screenshot and image processing module intercepts the map of the location of the mobile phone from the map information according to the map position, and sends the intercepted map to the video transmission format conversion module;

A video transmission format conversion module, configured to convert the intercepted map into a screenshot file in a transmission format, and send the screenshot file to the call processing module;

The call processing module is configured to replace the current video stream with the screenshot file in the video transmission format, or insert the screenshot file in the video transmission format into the current video stream and send it to the calling party.

Further, a mobile phone file module is included, the mobile phone file module is used to receive and store the intercepted map, and send the map to the video transmission format conversion module.

Further, an interface module is included, and the interface module is used for providing a user interface of the videophone.

Further, the screenshot and image processing module is also used to add a user logo in the map.

Another technical problem solved by the present invention is to provide a method for sending GPS positioning information in the videophone service, which can conveniently transmit the person's location information to the other party in real time.

In order to solve the above problems, the present invention provides a method for sending GPS positioning information in a videophone service, including:

The GPS positioning module obtains the GPS positioning information of the current position, and sends the GPS positioning information to the mobile phone map module;

The mobile phone map module determines the current map position of the mobile phone according to the received GPS positioning information;

The screenshot and image processing module intercepts the map of the location of the mobile phone from the map information according to the map position, and sends the intercepted map to the video transmission format conversion module;

The video transmission format conversion module converts the intercepted map into a screenshot file in a transmission format, and sends the screenshot file to the call processing module;

The call processing module replaces the screenshot file in the video transmission format with the current video stream, or inserts the screenshot file in the video transmission format into the current video stream and sends it to the calling party.

Preferably, the mobile phone file module receives and stores the intercepted map, and sends the map to the video transmission format conversion module.

Preferably, the interface module provides a user interface of the videophone, and the user activates and activates the GPS positioning module through the user interface.

Preferably, after the real-time refresh is started, the location is relocated at regular intervals, and the updated GPS location information is sent to the mobile phone map module.

The technical scheme of the invention enables the mobile phone user to transmit the location information of the user to the other party more freely and conveniently in real time in the 3G videophone service. The invention combines the mobile phone electronic map positioning technology with the "replacement picture" technology in the video phone, and can use the mobile phone GPS positioning information as a substitute picture in the video phone to replace your own video and send it to the other party, making the other party more clear and intuitive , Obtain the location information of the sender in real time. The specific effect is as follows:

A. To facilitate the exchange of information among friends. When the user needs to explain his own location or a certain other location in the videophone, he can directly activate GPS and electronic map through this function, so that the other party user can directly see the location information to be described during the call.

B. For vulnerable groups, such as the elderly and children, this function enables their relatives or guardians to obtain their location information conveniently, which greatly facilitates the search and rescue work in lost or dangerous situations.

C. For deaf-mute people, mobile phones can be used to better describe their own location or other location information.

Description of drawings

Fig. 1 is a structural diagram of a device for sending GPS positioning information in the present invention;

Fig. 2 is a brief process flow chart of successfully starting the GPS positioning module and sending mobile phone map positioning information between users in the videophone in the present invention;

Fig. 3 is a flowchart of sending GPS positioning information in the videophone according to the present invention.

Detailed ways

The prerequisite for this solution is that the user's mobile terminal is a 3G mobile terminal or other terminals that support mobile phone GPS positioning, electronic maps or videophone functions. On the premise that it supports mobile phone GPS positioning and videophone functions, the user interface (UI, User Interface) in the videophone call increases the function option of sending mobile phone positioning information. This function uses the electronic map of the user's area as Instead of pictures and local video transmission to the other party, the electronic map should also indicate the location information obtained by the user through A-GPS positioning. Since the user's location may move during the call, the location replacement image should also be able to be refreshed in real time or periodically.

When the user cannot search enough GPS satellites or cannot start the GPS receiver at all, it can still support the transmission of specific location information selected by the user. For example, when the GPS positioning information cannot be obtained due to limited circumstances, the user can select a part of the area on the map and send it as the content of the videophone instead of the picture. This solution technically satisfies the following functions:

(1) The area screenshot function of the electronic map.

(2) Add the user's personalized avatar in the electronic map according to the user's location, or manually select it by the user to control the avatar and its location.

(3) Convert the format of the map image after adding the user's location mark to the screenshot of the area, so as to transmit it through the H.263 video transmission protocol of the videophone.

(4) Provide a real-time refresh function for positioning instead of pictures. When the GPS is activated and the electronic map is sent in the videophone, the user can choose whether to perform real-time positioning refresh and control the refresh frequency.

After starting the real-time refresh, if the user moves, the other party will see the user's movement on the displayed electronic map.

Referring to the accompanying drawings, preferred embodiments of the present invention will be described in detail below.

As shown in Figure 1, it is a structural diagram of a device for sending GPS positioning information in the present invention, including: interface module 101, GPS positioning module 102, mobile phone map module 103, screenshot and image processing module 104, mobile phone file module 105, video transmission format conversion module 106 and call processing module 107 .

The interface module 101 is used to provide the UI interface of the videophone call, the user can see the content such as the video call picture of the videophone or the alternative picture picture of the mobile phone positioning in the UI interface, and can send instructions through the UI interface menu to call The other party in the picture sends the location information obtained by GPS positioning combined with the mobile phone map in a way of replacing pictures.

The GPS positioning module 102 receives the instruction sent by the interface module 101, obtains the GPS positioning information of the current position of the mobile phone, and provides the GPS positioning information to the mobile phone map module 103; or Bluetooth to the mobile phone.

The mobile phone map module 103 is used for storing map information, and determining the current map position of the mobile phone according to the received GPS positioning information. The map information is carried by the mobile phone, and can also be downloaded through the network. It should at least store the detailed map information of the area where the user is located. The positioning information finds the corresponding map position of the mobile phone in the map information, and sends the map position to the screenshot and image processing module 104 .

The screenshot and image processing module 104 automatically cuts off the map of the location of the mobile phone from the map information or manually cuts off the map of the location specified by the user. After the screenshot is completed, the screenshot and image processing module 104 should also implement adding a user logo (such as a personalized profile picture) to mark the location of the user in detail. In addition, if the user takes a screenshot manually, the image size and aspect ratio of the screenshot may not meet the transmission requirements. At this time, the screenshot and image processing module 104 should also automatically scale and stretch the image to meet the needs of subsequent processing.

The mobile phone file module 105 is responsible for storing the image-processed screenshot file for subsequent transmission and conversion processing.

The video transmission format conversion module 106 is responsible for converting the screenshot file into a format suitable for transmission. Since the video part in the video phone is transmitted in the H.263 format, it is necessary to perform corresponding format conversion on the image file before it can be transmitted in the video phone.

The call processing module 107, after receiving the screenshot file that can be transmitted as a substitute picture from the video transmission format conversion module 106, starts the substitute picture function, and sends the screenshot file to the other party through the video stream. Since the screenshot file contains the location information of the user on the mobile phone map, the other party can see the location information of the user on the call UI interface of the videophone.

As shown in Figure 2, it is a brief process flowchart of successfully starting the GPS positioning module 102 and sending the mobile phone map positioning information between users in the videophone in the present invention, and the specific steps are as follows:

Step 201: In the videophone, the user operates the UI interface to send a start signal to the GPS positioning module 102;

Step 202: GPS positioning module 102 starts and locates successfully, starts the electronic map and transmits GPS positioning information to it;

Step 203: intercept and store the screenshot file;

Step 204: the screenshot file is sent to the video transmission format conversion module 106 for video transmission format conversion;

Step 205: sending the converted picture data as a substitute picture;

Step 206: Displaying a GPS location replacement picture on the interfaces of the self and the other party.

As shown in Figure 3, it is a flow chart of the present invention sending GPS positioning information in videophone, and the realization of function specifically has the following steps:

Step 301: The user activates the "send positioning information (or similar description)" function on the UI interface during a videophone call, and the mobile phone prompts the user whether to activate the GPS positioning module 102; if the user chooses to activate, then enter step 302, otherwise enter step 302 303.

Step 302: Try to start the GPS positioning module 102, and prompt the user to wait.

If the activation is not successful, prompt the user and perform a secondary start. If the secondary start cannot be successful, then enter step 303;

If the GPS positioning module 102 is successfully started and the positioning is successful, the positioning information is automatically added to the electronic map, and the regional electronic map containing the GPS positioning information is intercepted, and sent to the screenshot and image processing module 104, and enters step 304.

Step 303: If the GPS positioning module 102 is not activated successfully, prompt the user whether to manually select a map to send to the other party.

If the user selects no, then directly exit the application and return to the normal videophone call screen; if the user selects yes, enter the electronic map, and the map of a certain area is manually controlled by the user and sent to the screenshot and image processing module 104, Go to step 304, and then control whether to add a personalized head portrait at a certain position.

Step 304: The video transmission format conversion module 106 converts the format of the electronic map screenshot obtained above in the background, so as to transmit it to the other party through the H.263 video transmission protocol in the videophone.

Step 305: Send the processed electronic map containing location information as a substitute picture to the other party according to the substitute picture function already implemented in the videophone.

If the user successfully activates the GPS positioning module 102 and the positioning is successful, the menu should provide the options of whether to perform real-time refresh and the refresh frequency. After starting the real-time refresh, it will reposition every once in a while, and send the positioning result instead of the previous picture to the other party.

Step 306: If the relocation fails, do not change the sent location picture, if it fails multiple times, prompt the user whether to exit the application, if the user chooses yes, then exit the application, delete the temporary location information image used in the application, and Turn off GPS and electronic maps; if the user chooses not to launch the app, continue to try to locate.

Claims (8)

1, send the device of GPS locating information in a kind of visual telephone service, it is characterized in that, comprising: GPS locating module, cell phone map module, sectional drawing and image processing module, video transmission format converting module and session processing module, wherein,

The GPS locating module is used to obtain the GPS locating information of current location, and described GPS locating information is sent to described cell phone map module;

The cell phone map module is used for storing map information, and determines the map location that mobile phone is current according to the described GPS locating information that receives;

Sectional drawing and image processing module cut down the map of mobile phone position according to described map location from described cartographic information, and the map of intercepting is sent to described video transmission format converting module;

Video transmission format converting module is used for the map of described intercepting is converted to the sectional drawing file of transformat, and described sectional drawing file is sent to described session processing module;

Session processing module is used for the sectional drawing file of described video transmission format is replaced current video stream, perhaps, sends to partner in the sectional drawing file insertion current video stream with described video transmission format.

2, send the device of GPS locating information in the visual telephone service as claimed in claim 1, it is characterized in that, further comprise the mobile phone file module, described mobile phone file module is used to receive and store the map of described intercepting, and described map is sent to described video transmission format converting module.

3, send the device of GPS locating information in the visual telephone service as claimed in claim 1, it is characterized in that further comprise interface module, described interface module is used to provide the user interface of video telephone.

4, send the device of GPS locating information in the visual telephone service as claimed in claim 1, it is characterized in that described sectional drawing and image processing module also are used for adding user label at described map.

5, send the method for GPS locating information in a kind of visual telephone service, it is characterized in that, comprising:

The GPS locating module obtains the GPS locating information of current location, and described GPS locating information is sent to the cell phone map module;

Described cell phone map module is determined the map location that mobile phone is current according to the described GPS locating information that receives;

Sectional drawing and image processing module cut down the map of mobile phone position according to described map location from described cartographic information, and the map of intercepting is sent to video transmission format converting module;

Described video transmission format converting module is converted to the sectional drawing file of transformat with the map of described intercepting, and described sectional drawing file is sent to session processing module;

Described session processing module is replaced current video stream with the sectional drawing file of described video transmission format, perhaps, sends to partner in the sectional drawing file insertion current video stream with described video transmission format.

6, send the method for GPS locating information in the visual telephone service as claimed in claim 5, it is characterized in that, the mobile phone file module receives and stores the map of described intercepting, and described map is sent to described video transmission format converting module.

7, send the method for GPS locating information in the visual telephone service as claimed in claim 5, it is characterized in that interface module provides the user interface of video telephone, the user starts by user interface and activation GPS locating module.

8, send the method for GPS locating information in the visual telephone service as claimed in claim 5, it is characterized in that, after startup refreshes in real time, reorientate once at set intervals, and the GPS locating information after will upgrading sends to described cell phone map module.

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