Information Terminal Status Acquisition via Power State Detection
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Solution Overview
Problem
Conventional systems face inefficiencies in obtaining status information from peripheral devices in power-save mode, leading to excessive load on the device and communication network, as they require switching to active mode for status updates, which can result in delayed notifications and increased load.
Innovation Solution
An information processing terminal repeatedly acquires status information from an image processing apparatus at set intervals, determining the power state to request either all or partial status information, thereby reducing the need for mode switching and minimizing network load by transmitting only necessary data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the peripheral device transmits status information only when switched from power-save mode to active mode, then the device can reduce power consumption, but the host device cannot obtain status information until mode switching occurs, causing delayed notifications
Solution Approach 1:
The peripheral device preps status information in advance during power-save mode and transmits it immediately upon receiving a request, even before fully transitioning to active mode. This preliminary preparation allows the host to obtain status information without waiting for complete mode switching, resolving the contradiction between power saving and timely information delivery
Solution Approach 2:
The system dynamically adjusts the mode switching behavior based on whether a status request is pending. When a request is received, the device prioritizes transmitting status information over completing the power-saving transition, making the system flexible enough to balance power consumption and response time based on real-time conditions
2Reliability
If the peripheral device stores information about the host device or broadcasts recovery time, then the host can be notified of status changes, but excessive load is applied to the peripheral device and communication network
Solution Approach 1:
The patent extracts only the essential status information needed by the host device and transmits it on-demand rather than storing comprehensive device information or broadcasting all recovery time details. This selective transmission reduces the information load on both the peripheral device and communication network while maintaining reliable status notification
Solution Approach 2:
The host device actively requests status information when needed rather than relying on the peripheral device to proactively broadcast updates. This reverses the information flow pattern, reducing the burden on the peripheral device to manage and transmit status information while ensuring the host receives necessary updates
Data Source
AI summary
A non-transitory computer-readable recording medium storing computer-readable instructions which causes an information processing terminal to transmit first request information requesting an image processing apparatus to transmit first information, receive the first information, as a response to the first request information, from the image processing apparatus, determine whether a set value of the received first information is the first value or the second value. When the first information is set to the first value, the instructions further cause the information processing terminal to transmit second request information requesting the image processing apparatus to transmit the second information, and receive the second information, as a response to the second request information, from the image processing apparatus. When the first information is set to the second value, the instructions do not cause the information processing terminal to transmit the second request information and to receive the second information.