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Method for reducing power consumption of embedded system by contact dynamic sampling technique

An embedded system and dynamic sampling technology, applied in the input/output process of data processing, instruments, data processing power supply, etc., can solve the problems of system execution efficiency reduction, power consumption, etc.

Active Publication Date: 2013-01-30
SHANDONG UNIV
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AI Technical Summary

Problems solved by technology

The touch screen scans and samples the screen at a fixed frequency. In actual operation, such as during movie playback, the user has little interaction with the touch screen and does not need to scan the screen frequently. However, if the screen is still scanned at a fixed frequency Sampling is unnecessary, and it will cause unnecessary power consumption, and the system execution efficiency will be greatly reduced

Method used

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Embodiment

[0051] A method for reducing power consumption of embedded systems through contact dynamic sampling technology, suitable for embedded terminal systems with touch screens, system developers count Android applications, such as video, music, contacts, each application is a scene , all applications are regarded as sample space, each application has its own ID, according to the frequency of interaction between the application and the user (the number of times the user clicks the screen per unit time under the application), corresponding to different screen sampling frequencies (system scan The number of click events per unit time on the screen), formulate a sample frequency mapping table, determine the current application program of the system through process scanning, and automatically adjust the screen sampling frequency by using sample space mapping; this method includes the following parts. First, count Android applications program, formulate the mapping table from the applicati...

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Abstract

A method for reducing power consumption of an embedded system by a contact dynamic sampling technique belongs to the technical field of the touch screen of the embedded system. The method is suitable for the Android platform and comprises the following steps of: scanning the screen by the system to capture a touch event, performing the dynamic sampling technique, mapping the scene to a sample space, classifying the sample space and dynamically adjusting the sampling frequency, thereby reducing the system power consumption. The touch sampling technique provided by the invention is simple and also capable of effectively utilizing the system resources to reduce the system power consumption.

Description

technical field [0001] The invention relates to a method for reducing power consumption of an embedded system through a contact dynamic sampling technology, and belongs to the technical field of touch screens of embedded systems. Background technique [0002] With the large-scale construction of 3G networks and the rapid popularization of smart terminals, the era of mobile Internet has arrived. As an operating system launched by Google, Android has attracted widespread attention since its inception, and has been ported to various platforms due to its open source nature. There are more and more applications on the Android platform, and people have higher and higher requirements for the applications. [0003] Touch is the primary way users interact with Android system applications. With the development of society, the application of electronic equipment with a touch screen is constantly expanding. Centralized touch screen display, fast touch screen operation, intuitive hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F3/041G06F3/044
Inventor 张海霞王宏宾袁东风徐加利马翠云冯骁孙志猛孙文纪洪亮杨刚震林慧琳
Owner SHANDONG UNIV
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