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Method and device for drawing navigation image

An image drawing and image technology, applied in the field of navigation, can solve the problems of reducing the frame rate, stuttering of navigation animation, affecting the user's navigation experience, etc., to achieve the effect of reducing power consumption and reducing the impact

Active Publication Date: 2015-12-16
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the measures taken in the prior art are only to reduce the frame rate blindly. When the frame rate is too low, the navigation animation will be stuck, which will seriously affect the user experience of navigation.

Method used

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  • Method and device for drawing navigation image
  • Method and device for drawing navigation image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] figure 1 It is a flow chart of a method for drawing a navigation image provided by Embodiment 1 of the present invention. The method can be executed by an apparatus for rendering a navigation image. Wherein the device can be realized by software and / or hardware, and generally can be integrated in a mobile terminal with a navigation function. Wherein, the mobile terminal may be a mobile phone, a tablet computer or a GPS navigator.

[0020] see figure 1 , the method specifically includes the following steps:

[0021] Step 101, changing the frame limit parameter according to the state parameter of the current navigation.

[0022] Step 102: Perform frame-limiting processing on drawing the navigation image according to the frame-limiting parameters.

[0023] At present, the drawing and rendering of the navigation image is usually completed by starting the navigation image drawing thread. One of the important parameters is the start interval of the navigation image draw...

Embodiment 2

[0031] figure 2 It is a flow chart of a navigation image rendering method provided by Embodiment 2 of the present invention. The navigation image rendering method is based on the above Embodiment 1. Further, when the frame limit parameter is the current frame limit time threshold , optimizing the frame-limiting processing of the navigation image drawing according to the frame-limiting parameters is: calculating the time difference between the current time and the last navigation image drawing time according to the set cycle; calculating the current time frame-limiting time threshold and the current time difference The first difference between them; control the navigation image drawing thread to sleep according to the first difference; draw the navigation image after the navigation image drawing thread sleeps, and record the drawing time.

[0032] see figure 2 , the method specifically includes the following steps:

[0033] Step 201. Change the frame limit parameter accordi...

Embodiment 3

[0044] image 3 It is a flow chart of a navigation image drawing method provided by Embodiment 3 of the invention. The navigation image drawing method is based on all the above-mentioned embodiments. Further, the frame limit parameter is optimized according to the current navigation state parameter as follows: The status parameter of the current navigation identifies the scene, and changes the frame limit parameter according to the scene.

[0045] see image 3 , the method specifically includes the following steps:

[0046] Step 301: Identify the current scene according to the current navigation state parameters, and change the frame limit parameter according to the current scene.

[0047] Exemplarily, the scene includes any one of the following: a following state, a browsing state where user interaction occurs, and a high-speed vehicle driving state.

[0048] In the following state, the navigation function of the mobile terminal is generally fully handed over to the naviga...

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Abstract

The embodiment of the invention discloses a method and a device for drawing a navigation image. The method comprises the following steps: changing frame limiting parameters according to current navigation state parameters; and carrying out frame limiting disposal on drawing of a navigation image according to the frame limiting parameters. According to the embodiment of the invention, navigation state parameters can be obtained based on a mobile terminal, the navigation drawing image can be determined according to the current navigation frame limiting parameters, so that the power consumption of the mobile terminal can be reduced on the premise of not affecting the navigation map and the flash playing effect, and further the cruise duration of the mobile terminal can be increased, and the use experience of the user can be promoted.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of navigation, and in particular, to a method and device for drawing a navigation image. Background technique [0002] With more and more people traveling by car to visit relatives, explore and travel, mobile terminals with navigation functions are also more and more widely used. Utilizing the navigation function of the mobile terminal has brought convenience to people's travel to a large extent. [0003] An important performance index of a mobile terminal with a navigation function is its battery life, and the main factor affecting the battery life is the power consumption of navigation. The power consumption of navigation mainly comes from CPU consumption. The power consumption of the entire navigation layer module CPU in the mobile terminal accounts for about 30%-40% of the total power consumption of the mobile terminal CPU, and the drawing and rendering of the navigation layer modu...

Claims

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Application Information

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IPC IPC(8): G01C21/00G01C21/32
CPCG01C21/00G01C21/32G01C21/367G09G3/20G09G2320/08G09G2330/023G09G2340/0435G09G5/00G01C21/3804G01C21/3655G06F1/3246G06F1/329
Inventor 邓健
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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