Power Supply State Selection for Error Recovery
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Solution Overview
Problem
Existing information processing apparatuses face inefficiencies in restoring hardware and software states after errors occur, leading to longer activation times when the power supply is invariably changed to a first power-off state, which accompanies hardware reset and program restart, instead of a second power-off state that does not.
Innovation Solution
An information processing apparatus with a processor that determines the type of error and changes the power supply state to either a first power-off state (for errors that can be eliminated by reset and restart) or a second power-off state (for errors that cannot be eliminated by reset and restart) to minimize activation time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power supply state is invariably changed to the first power-off state after an error occurs, then the error can be eliminated by resetting hardware and restarting programs, but the time taken to restore the apparatus becomes longer
Solution Approach 1:
The patent applies dynamics by making the power-off state selectable rather than fixed. The system dynamically transitions between first power-off state (full reset) and second power-off state (no reset) based on the error type detected, allowing optimal recovery strategy to be chosen for each specific error condition, thereby resolving the contradiction between ensuring error elimination and minimizing activation time
Solution Approach 2:
The patent changes the parameter of power supply state (from invariant to variable) based on error type. By categorizing errors into different types and selecting corresponding power-off states, the system optimizes the balance between error elimination effectiveness and activation time, applying parameter changes to resolve the technical contradiction
2Loss of time
If the power supply state is changed to the second power-off state for errors that cannot be eliminated by reset, then the activation time is reduced, but the error cannot be eliminated
Solution Approach 1:
The system dynamically selects between second power-off state (fast recovery) and first power-off state (error elimination) based on error type classification. For non-resettable errors, the second state provides fast recovery, while for resettable errors, the first state ensures error elimination, thus resolving the contradiction through dynamic adaptation
Solution Approach 2:
The patent changes the power supply state parameter based on error characteristics. By introducing error type classification and mapping it to appropriate power-off states, the system optimizes both activation time and error elimination capability, resolving the contradiction through parameter changes
Data Source
AI summary
An information processing apparatus includes a processor. A first power-off state, which accompanies a reset of hardware and a restart of a program, and a second power-off state, which does not accompany the reset of the hardware and the restart of the program, are defined as states of a power supply of the information processing apparatus. The processor is configured to change, if an operation for turning off the information processing apparatus is performed after an error occurs in the information processing apparatus, a state of the power supply to the first power-off state or the second power-off state in accordance with a type of error that has occurred in the information processing apparatus.