Electric quantity protection method for mobile phone adopting Android operating system

An operating system and power technology, applied in the direction of current supply devices, advanced technology, climate sustainability, etc., can solve problems such as lack of power, battery power lasting as long as possible, user troubles, etc., to achieve convenient and fast switching Effect

Inactive Publication Date: 2011-02-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When existing mobile phones are in use, they often shut down automatically due to insufficient power, causing great trouble to users
Moreover, all current mobile phone operating systems do not have the ability to perform power protection when the power is insufficient.
When the user's power is about to

Method used

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  • Electric quantity protection method for mobile phone adopting Android operating system
  • Electric quantity protection method for mobile phone adopting Android operating system
  • Electric quantity protection method for mobile phone adopting Android operating system

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 It is a flowchart of an embodiment of the present invention. The method includes: 1) power threshold monitoring, 2) power protection, and 3) operating system protection.

[0026] The specific operation process of the present invention is as follows:

[0027] 1) Power threshold monitoring

[0028] Such as figure 2 It is a schematic diagram of power threshold monitoring according to an embodiment of the present invention. The system presets a power threshold m, and when the battery power is lower than the threshold, it automatically switches to power protection.

[0029] 2) Carry out battery protection

[0030] Adjust the CPU status to Sleep, turn off the system's dynamic memory, Bluetooth, network connection, and screen.

[0031] CPU: Existing embedded CPU processors, such as the ARM series, the Atom series developed by Intel, etc., all have frequency modulation capabilities, and various states of the CPU can be set through the system call pm_suspend (function). The Andr...

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PUM

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Abstract

The invention discloses an electric quantity protection method for a mobile phone adopting an Android operating system, which is characterized by comprising the following steps: 1) electric quantity threshold monitoring: reading the electric quantity of the mobile phone through the application program interface (API) program interface of the Android, and rendering the system into a low-electric quantity protection state when the electric quantity is smaller than a preset threshold value m of the system; 2) low-electric quantity protection: regulating the state of a central processing unit (CPU) to a Sleep state, and turning off a dynamic storage, a Bluetooth, network connection and a screen of the system; and 3) operating system protection: when the dynamic storage is turned off, writing the operation information of the operation system, which is stored in the dynamic storage originally, into a static storage. In the invention, when system electric quantity of the mobile phone adopting the Android operating system is about to be consumed completely, the most important module, which cannot be turned off, is maintained and the service life of the system is prolonged as much as possible, so that when the power supply is restored, the system can be switched to a normal state quickly. Thus, the effective time of the important functions of the system are guaranteed.

Description

Technical field [0001] The invention relates to the field of energy-saving in embedded systems, and in particular to an electric power protection method on Android. Background technique [0002] The rapid development of semiconductor technology has created conditions for the continuous improvement of embedded processor technology. With the increase in integration, complexity, and performance of processors, their power consumption is also rising. In recent years, the power consumption per unit area of ​​the processor has increased exponentially. The rapid increase in power consumption has become a major factor restricting the further development of processors. However, most mobile embedded systems have to use battery power supply due to the particularity of their application environment. Compared with wired power supplies, the battery capacity is limited, so mobile embedded systems have more stringent requirements for power consumption. However, compared with the rapid develop...

Claims

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Application Information

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IPC IPC(8): H04M1/73
CPCY02D30/70
Inventor 陈天洲居立晗黄文胡同森
Owner ZHEJIANG UNIV
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