Dynamic Operation Persistence Time Control for Power Generation Devices

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Solution Overview

Problem

Existing electronic devices with power generation functions face issues of unnecessary power consumption and decreased convenience due to fixed operation persistence times, leading to inefficient use of battery life and potential voltage drops during non-use periods.

Innovation Solution

Incorporating a system with charge detection, voltage detection, and timer management to dynamically adjust operation persistence times based on battery voltage, allowing for appropriate persistence time display and adjustment, preventing premature operation suspension and reducing wasteful power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the operation persistence time is set to a predetermined fixed period, then the device operation can be maintained after power generation suspension, but unnecessary power consumption occurs when the device is seldom used

Engineering Contradiction:

Improveoperation persistence timeVSAvoidpower consumption

Core Design Contradiction:

Duration of action of moving objectVSLoss of energy

Solution Approach 1:

The operation persistence time is changed from a fixed predetermined period to a dynamically adjustable parameter based on detected voltage levels. When voltage is high, the persistence time is extended; when voltage is low, it is reduced. This dynamic adjustment eliminates wasteful energy consumption while maintaining adequate operation continuity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The persistence time parameter is modified based on voltage detection results. The system detects voltage at specific time points and adjusts the persistence time accordingly, changing the operational parameter to match actual power availability and usage patterns.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If the operation persistence time is extended to maintain operation after power generation suspension, then convenience is improved, but voltage depletion occurs during non-use periods

Engineering Contradiction:

ImproveconvenienceVSAvoidbattery voltage

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The persistence time parameter is adjusted based on detected voltage levels. When voltage is high, the system extends operation persistence time to improve convenience. When voltage is low, it reduces persistence time to conserve battery energy, preventing voltage depletion.

Inventive Principle:

Principle #35Parameter changes

3Loss of energy

If the operation is suspended when voltage decreases below initial voltage, then unnecessary power consumption is suppressed, but convenience deteriorates when power generation is needed

Engineering Contradiction:

Improvepower consumptionVSAvoidconvenience

Core Design Contradiction:

Loss of energyVSEase of operation

Solution Approach 1:

The suspension voltage threshold is changed from a fixed initial voltage to a dynamically determined voltage based on detected voltage levels and time. This allows the system to suppress unnecessary power consumption when voltage is genuinely low while maintaining convenience when voltage is adequate.

Inventive Principle:

Principle #35Parameter changes

4Duration of action of moving object

If the operation is continued for a predetermined period after power generation suspension, then operation continuity is maintained, but useless power consumption occurs when the device is not in use

Engineering Contradiction:

Improveoperation continuityVSAvoiduseless power consumption

Core Design Contradiction:

Duration of action of moving objectVSLoss of energy

Solution Approach 1:

The operation persistence time parameter is adjusted based on detected voltage levels and usage patterns. When voltage is high and usage is frequent, the persistence time is extended to maintain operation continuity. When voltage is low or usage is minimal, it is reduced to eliminate useless power consumption.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9575526B2Electronic device having power generation function, control method of electronic device having power generation function, and portable electronic device having power generation function, and control method of portable electronic device having power generation function

Publication Date: 2017.02.21 SEIKO EPSON CORP

AI summary

An electronic device is equipped with power generating means (unit), a secondary battery, a device, charging detection means (unit), battery voltage detection means (unit), and a time display control means (unit). The time display control means (unit) is equipped with an operation suspension portion, an operation resumption portion, a timer, a persistence display control portion and a timer updating portion. The timer updating portion updates the remaining time of the timer to the persistence time according to the detected voltage detected by the battery voltage detection means (unit) is longer than the remaining time, and operates the timer in operation as it is when the persistence time according to the detected voltage is equal to or less than the remaining time of the timer in operation.