APS Power Saving Algorithm for Portable Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional MEMS devices face challenges in reducing power consumption, increasing computational power, and supporting complex microsystems, which limits their performance and efficiency in applications such as portable computing devices.
Innovation Solution
The implementation of a software-based power saving algorithm, specifically the Accel-based Power Savings (APS) method, which uses MEMS sensors like accelerometers to detect orientation changes and idle operations, disabling unnecessary components to conserve battery life in portable computing devices like smartphones and tablets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If MEMS devices increase computational power and support complex microsystems, then performance and functionality are improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning MEMS devices between active and standby states based on operational needs. The system dynamically adjusts the operational state of individual MEMS devices or groups of devices, allowing them to be activated only when required for specific sensing or actuation tasks, thereby reducing overall power consumption while maintaining computational capability when needed.
Solution Approach 2:
The patent changes the operational parameter state of MEMS devices from fully active to standby mode. By modifying the operational state parameter (active/standby) based on system requirements, the patent reduces power consumption without permanently degrading computational power capabilities, as devices can be reactivated when needed.
2Speed
If MEMS devices are kept in active state to maintain responsiveness, then operational readiness is improved, but battery life deteriorates
Solution Approach 1:
The patent implements periodic action by cycling MEMS devices between active and standby states based on predetermined conditions and time intervals. The system periodically evaluates whether MEMS devices need to be active for current operations, and transitions them to standby when not needed, creating a rhythmic pattern of activation that balances responsiveness with battery conservation.
Solution Approach 2:
The patent applies preliminary action by pre-establishing criteria for when MEMS devices should be activated or placed in standby. The system proactively manages device states based on anticipated operational needs, putting devices in standby before battery depletion becomes critical and activating them in advance when operations are predicted to require their functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The APS method effectively reduces power consumption by putting idle components into standby mode, extending battery life and optimizing resource usage across sensors and communication processes in portable devices.
Implementation Method 1
determining, in a sensor in the portable computing device, orientation changes of the portable computing device
Data Source
AI summary
A portable computing device using power consumption reduction and a method of operating therefor. The method can include the following steps: determining, in a sensor in the portable computing device, orientation changes of the portable computing device; determining, in the portable computing device, a status of a first operation of the portable computing device; determining, in the portable computing device, a status of a second operation of the portable computing device; discontinuing, in the portable computing device, the second operation in response to when the orientation changes of the portable computing device are less than a threshold, and in response to the status of the first operation and the status of the second operation; and outputting, on a display of the portable computing device, an indication to a user that the second operation has been discontinued.