Power Status Transition Loop Detection and Deactivation
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Solution Overview
Problem
Information processing apparatuses face power status transition loops due to repeated events triggering power status changes, leading to inefficiencies and increased power consumption.
Innovation Solution
An information processing apparatus is configured with a power log unit, sensing unit, detection unit, deactivation unit, and status change unit to detect and interrupt power status transition loops by deactivating the event policy causing the loop, ensuring the apparatus can operate according to an event policy without entering a loop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power status is changed in accordance with an event policy triggered by event occurrence, then the information processing apparatus can operate efficiently according to predefined policies, but a power status transition loop may occur causing repeated events and inefficiencies
Solution Approach 1:
The system performs preliminary recording of power status changes in a log before the actual status transition occurs. This allows the detection unit to reference the log and identify potential transition loops in advance, preventing the system from entering an infinite cycle of status changes while still allowing legitimate policy-driven transitions to proceed.
Solution Approach 2:
The detection unit continuously monitors the power status transition log and provides feedback when a loop is detected. When the sensing unit detects an event that would trigger a policy change, the detection unit checks the log to see if this would create a repetitive transition pattern, and the deactivation unit responds by deactivating the event policy to break the loop.
2Productivity
If event policy is deactivated to interrupt power status transition loop, then repeated events causing inefficiencies are prevented, but the apparatus loses the ability to respond to legitimate events governed by the deactivated policy
Solution Approach 1:
The log serves as an intermediary data structure that records power status transitions without being the direct cause of policy deactivation. The detection unit uses this intermediary log to identify loops, and only deactivates policies when actual repetitive patterns are confirmed, rather than preemptively disabling all policies.
Solution Approach 2:
The system changes the operational parameter of the event policy from active to deactivated state, but only when a loop is actually detected through analysis of the power status log. This conditional parameter change allows the system to maintain policy responsiveness for legitimate events while interrupting only the problematic repetitive transitions.
3Loss of energy
If power status transition loop is detected and interrupted, then power consumption is reduced by preventing repeated transitions, but additional monitoring and detection mechanisms increase system complexity
Solution Approach 1:
The power log unit is merged with the existing power management system, serving dual purposes: recording power status transitions for auditing purposes and providing data for loop detection. The detection unit combines information from the log with current event sensing to identify loops, eliminating the need for separate monitoring hardware.
Solution Approach 2:
The system uses its own existing log recording functionality to detect loops, rather than requiring external monitoring tools. The detection unit analyzes the self-generated log data to identify repetitive patterns, and the deactivation unit autonomously interrupts loops without external intervention, making the system self-regulating.
Data Source
AI summary
It is sensed that an event has occurred which is a target of an event policy to transition power status with an event occurrence as a trigger, a setting of the event policy is acquired, it is determined whether or not a loop of power status transition has occurred, and the event policy is deactivated if the loop of the power status transition has occurred.