Power State Switching via Timing Mechanism
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Solution Overview
Problem
Current power management systems in computers fail to efficiently switch between power-saving and working states, leading to unnecessary power consumption and reduced device lifespan, as they cannot automatically transition back to a power-saving state after executing a scheduled function.
Innovation Solution
A method that automatically switches an electronic apparatus from a power-saving state to a working state at a predetermined waking up time ahead of the scheduled function's execution time and then back to the power-saving state after the function is completed, using a timing mechanism and user input signals to manage state transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the computer is kept in the S0 working state all the time to execute an assigned function at a preset time, then the assigned function can be executed reliably, but power consumption increases and device lifespan decreases
Solution Approach 1:
The system performs preliminary actions by setting a waking-up time that is earlier than the executing time of the assigned function. This allows the computer to be switched on in advance, execute the function, and then automatically switched off, rather than remaining continuously on. The preliminary setup of the timing mechanism enables automated power management.
Solution Approach 2:
The system uses feedback through the timing mechanism to monitor the current time and compare it with the preset waking-up time and executing time. Based on this feedback, the system automatically switches between power-saving and working states, ensuring the function is executed at the correct time while minimizing power consumption before and after execution.
2Extent of automation
If the computer is automatically switched on from a power-saving state to execute an assigned function, then the function can be executed automatically, but the computer fails to automatically return to the power-saving state, causing continuous power consumption
Solution Approach 1:
The system performs preliminary action by pre-configuring not only the waking-up time to switch on the computer but also the executing time to automatically switch it off after the function completes. This dual preliminary configuration ensures full automation of both power-on and power-off operations.
Solution Approach 2:
The system implements periodic action through the timing mechanism that automatically triggers power state transitions at predetermined intervals. The computer is periodically switched on at the waking-up time, executes the function, and is periodically switched off at the executing time, creating an automated cycle of operation.
3Loss of energy
If the computer is forced into a shutdown state whenever in vacancy, then energy is saved, but the computer cannot execute scheduled functions automatically
Solution Approach 1:
The system applies dynamics by making the power state adaptable rather than static. The computer dynamically transitions between power-saving and working states based on the timing mechanism's detection of the current time relative to the preset waking-up and executing times. This dynamic behavior allows the system to save energy during vacancy while automatically executing scheduled functions when needed.
Data Source
AI summary
A method for automatically switching power states is disclosed. According to the method, when an electronic apparatus is in a power-saving state and a waking up time is reached, the electronic apparatus is switched into a working state, and when an executing time is reached, the electronic apparatus automatically executes an assigned function. After completing the assigned function, the electronic apparatus is switched back into the power-saving state for energy-saving purpose.