Image Processing Apparatus Power Saving Notification
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Solution Overview
Problem
In image processing apparatuses, there is a need to quickly transition to a power saving state while avoiding communication and processing that hinder this transition, and to securely notify a management server of this state change without disrupting the transition process.
Innovation Solution
The image processing apparatus stores time information when transitioning to a power saving state and reads this information back when returning from the power saving state to notify the management server, allowing for accurate logging and analysis without interfering with the state transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the apparatus notifies the management server of power state transition before transitioning to power saving state, then the server receives complete information for analysis, but the transition time is extended due to communication overhead
Solution Approach 1:
The apparatus performs preliminary action by storing transition time information in memory before actually transitioning to the power saving state. This allows the notification to be prepared in advance without delaying the actual power state transition, resolving the contradiction between information completeness and transition speed.
Solution Approach 2:
The notification function is extracted from the power transition process itself. The apparatus separates the information preparation (storing transition time) from the power transition execution, allowing the transition to occur quickly while the notification is handled independently after the transition completes.
2Speed
If the apparatus avoids communication during power saving transition, then the transition is quick, but the server does not receive timely notification of the state change
Solution Approach 1:
The apparatus performs preliminary action by storing the transition time information in memory before the actual power state transition occurs. This preparation is done quickly without extensive communication, and the detailed notification is sent after the transition completes, minimizing both transition delay and notification delay.
Data Source
AI summary
An image processing apparatus is provided. In a case where a transition from a certain power state to a first power saving state is made, the image processing apparatus stores first time information indicating a time of the transition to the first power saving state in a memory. In a case where a return from the first power saving state is made, the image processing apparatus notifies a management server of an event, which includes the first time information read out from the memory and indicates that the transition to the first power saving state has been made.