Communication Device Power Management Using Segmented Power-Off States
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing number of applications on communication devices leads to prolonged power-on times due to the need to suspend and resume various functions, which is inefficient and time-consuming.
Innovation Solution
A power-on/off management system that includes a screen control module to suspend signal transmission, a timing module to determine the duration of the power-off state, and an execution module to activate the device based on predefined thresholds, allowing for a simulated power-off state without complete shutdown until a preset time is exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the device is completely powered off and then re-powered on, then power consumption is reduced and the powered-off state is maintained, but the power-on time becomes excessively long due to the increasing number of applications that need to be suspended and resumed
Solution Approach 1:
The patent segments the power-off state into two distinct modes: simulated power-off state (first power-off state) where the system suspends signal transmission but maintains core functionality, and complete power-off state (second power-off state). This segmentation allows the device to appear powered off to users while actually maintaining a reduced operational state, eliminating the need to fully resume applications and thus reducing power-on time while still achieving power savings.
Solution Approach 2:
The timing module monitors the duration of the simulated power-off state and automatically triggers a complete power-off when the preset time threshold is exceeded. This preliminary action ensures that the device transitions to a true powered-off state before excessive power consumption can occur, while still maintaining the benefit of quick reactivation from the simulated power-off state for shorter durations.
2Speed
If the device enters a simulated power-off state with signal transmission suspended, then quick reactivation is achieved, but power consumption is not reduced as much as a complete shutdown
Solution Approach 1:
The patent implements a dynamic power management system that automatically adjusts the power-off mode based on the elapsed time. The timing module continuously monitors the duration and transitions from simulated power-off to complete power-off when the preset threshold is reached. This dynamic adjustment ensures that the device maintains quick reactivation capability for short absences while achieving maximum power savings during longer periods when the device will not be immediately needed.
Solution Approach 2:
The timing module provides continuous feedback on the duration of the simulated power-off state and compares it against the preset time threshold. This feedback mechanism automatically triggers the transition to complete power-off state when necessary, ensuring optimal balance between reactivation speed and power consumption based on actual usage patterns.
3Loss of energy
If all applications are suspended during power-off, then complete power savings are achieved, but the device cannot be quickly reactivated when needed
Solution Approach 1:
The patent segments the power management approach into two distinct states: simulated power-off for quick reactivation and complete power-off for maximum energy savings. By offering both modes, the system achieves both goals - energy savings through complete shutdown when appropriate and quick reactivation through simulated power-off when needed, eliminating the need to choose one approach over the other.
Solution Approach 2:
The system changes the operational parameters of the device based on the power-off mode. In simulated power-off state, signal transmission is suspended but core system functions remain active. In complete power-off state, all functions are fully shut down. This parameter change allows the device to optimize between energy savings and reactivation efficiency based on the specific usage scenario.
Data Source
AI summary
In a power-on/off management method of a communication device, a display screen of the communication device is powered off, and a signal transmitting function of the communication device is suspended, when a power key of the communication device is pressed upon the condition that the communication device is in a power-on state. A duration time of how long the display screen is powered off is determined, and the communication device is activated according to the duration time when the power key is pressed upon the condition that the display screen is powered off.