Portable Device Power Generation via Kinetic Energy Harvesting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable electronic devices with secondary batteries face issues when the battery capacity is low, especially in areas without commercial power sources, leading to device shutdown and inability to immediately use the device due to lack of external charging options.
Innovation Solution
Incorporating a power generation unit within the device that generates electrical power through user actions, such as stepping, to supply power to the signal processing unit and electricity storage, allowing the device to operate without external charging and adapt playback modes based on battery capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary battery is used as the power source, then the portable electronic device can be recharged, but the device cannot be used immediately after a long period of non-use and requires external charging infrastructure
Solution Approach 1:
The power generation unit generates and stores electrical energy in advance through user actions (such as shaking or stepping), so that when power is needed, the device can be used immediately without waiting for external charging. The electricity storage unit accumulates energy beforehand to ensure immediate availability.
2Reliability
If a secondary battery is used as the power source, then the device can store energy, but the device cannot operate in places without commercial power sources when battery capacity is low
Solution Approach 1:
The device generates its own power through the power generation unit using user actions (shaking, stepping, or other movements). This self-powered mechanism eliminates the need for external charging infrastructure, allowing the device to operate independently in remote areas without commercial power sources.
3Use of energy by moving object
If the battery remaining capacity becomes insufficient, then the device can be charged, but the device must be stopped in places without commercial power sources
Solution Approach 1:
The power generation unit enables continuous operation by generating power on-demand through user actions. When the battery capacity becomes insufficient, the user can immediately generate power through shaking or stepping, ensuring uninterrupted operation without needing to stop the device for charging.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous operation of portable electronic devices without the need for external charging, ensuring uninterrupted use even in areas without commercial power sources and allowing adaptive playback modes based on battery levels.
Implementation Method 1
a power generation unit that generates an electrical signal as power
Data Source
AI summary
Provided is a portable electronic device including a signal processing unit, a controller that supplies a control signal to the signal processing unit, and a power generation unit that generates an electrical signal as power and supplies the generated electrical signal to the signal processing unit.