Power Consumption Display Using Generated Power in Information Processing Devices

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Solution Overview

Problem

Existing information processing devices face challenges in reducing power consumption during power saving modes, as displaying power consumption information typically increases energy usage, and existing solutions do not effectively utilize generated or stored power to provide this information.

Innovation Solution

An information processing device with a computing unit that calculates power consumption based on interrupt signals and a display unit using generated or stored power, allowing the sub-panel to display power consumption during power saving mode without increasing overall power usage, utilizing a low-power CPU and pre-stored power values to minimize energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If power consumption information is displayed during power saving mode, then users can be informed about power usage, but overall power consumption increases

Engineering Contradiction:

Improvepower consumption informationVSAvoidpower consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

Power consumption values are pre-calculated and stored in a table for different interrupt signal types before entering power saving mode. When an interrupt occurs, the system simply retrieves and displays the pre-stored value rather than calculating it in real-time, minimizing power consumption during display mode

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses its own generated or stored electric power to display power consumption information, rather than requiring additional external power sources. The display unit operates using the device's internal power resources, making the information display self-sufficient

Inventive Principle:

Principle #25Self-service

2Measurement precision

If a full-power CPU is used to compute power consumption in real-time, then accurate power consumption data is obtained, but power consumption increases during power saving mode

Engineering Contradiction:

Improvepower consumption accuracyVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the operational state of the CPU between full-power mode (for initial calculations) and low-power mode (for retrieval and display). By switching CPU power states and using pre-stored values, the system maintains measurement capability while minimizing power consumption during power saving mode

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9286555B2Information processing device, information processing method, and image processing device

Publication Date: 2016.03.15 FUJIFILM BUSINESS INNOVATION CORP

AI summary

An information processing device includes a computing unit and a display unit. The computing unit computes a power consumption per a predetermined time during a power saving mode that reduces power consumption, on the basis of a count per type of an interrupt signal produced during the power saving mode, and a power consumption pre-estimated per type of the interrupt signal. The display unit displays a power consumption computed by the computing unit using generated or stored electric power.