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

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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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example one

[0019] figure 1 This is a flowchart of a method for drawing a navigation image provided by Embodiment 1 of the present invention. This method can be executed by a device for navigating image drawing. The device can be implemented by software and / or hardware, and can generally be integrated in a mobile terminal with navigation functions. Among them, 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: Change the frame limit parameter according to the current navigation state parameter.

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

[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 drawing thread...

Example Embodiment

[0030] Example two

[0031] figure 2 This is a flowchart of a method for drawing a navigation image provided in the second embodiment of the present invention. The method for drawing a navigation image is based on the first embodiment above. Further, when the frame limit parameter is the current limit frame 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 period; calculating the current frame time threshold and the current time difference The navigation image drawing thread is controlled to sleep according to the first difference; the navigation image drawing is performed after the navigation image drawing thread sleeps, and the drawing time is recorded.

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

[0033] Step 201: Change the frame limit par...

Example Embodiment

[0043] Example three

[0044] image 3 A flowchart of a method for drawing a navigation image is provided for the third embodiment of the invention. The method for drawing a navigation image is based on all the above-mentioned embodiments. Further, changing the frame limit parameter according to the current navigation state parameter is optimized as follows: The status parameter of the current navigation identifies the scene you are in, and changes the frame limit parameters according to the scene you are in.

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

[0046] Step 301: Identify the scene in accordance with the state parameters of the current navigation, and change the frame limiting parameters according to the scene in which they are in.

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

[0048] In the following s...

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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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