Mobile Terminal Solar Charging Status Feedback
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Solution Overview
Problem
Conventional mobile terminals do not provide detailed information on charging using a solar cell as a power source when in a low power state, nor do they inform users about the remaining power amount resulting from charging.
Innovation Solution
A mobile terminal with multiple power sources, including a solar cell, that determines if charging can be done using only the solar cell when in a low power state, and outputs information related to the callable time based on the remaining power amount after charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the mobile terminal charges power using only the solar cell among multiple power sources in a low power state, then the terminal can extend its operation time, but the user receives insufficient information about charging progress and remaining power amount
Solution Approach 1:
The patent implements feedback by displaying charging status information including remaining power amount and expected operation time during solar cell charging. The controller calculates and updates the charging status based on the charging speed and remaining capacity, providing continuous feedback to the user about the charging progress and anticipated operation duration, thereby resolving the information deficiency while maintaining extended operation capability
2Loss of information
If the mobile terminal provides detailed charging information during solar cell charging, then user awareness of power status improves, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating the expected operation time based on the charging speed and remaining power capacity before full charging is complete. The controller determines the charging status in advance and displays the projected operation time to users, allowing them to plan their usage without requiring complex real-time monitoring systems, thus providing detailed information while maintaining relatively simple device architecture
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 users to anticipate and manage call times even in low power conditions by providing actionable information on charging progress and remaining power, ensuring emergency calls can be made when necessary.
Implementation Method 1
a power supply including first and second power sources, a controller for, when a remaining power amount of the power supply is less than a minimum power consumption amount required for a call, determining whether the charging of the power supply can be performed using only the second power source
Data Source
AI summary
For a mobile terminal and a method for controlling charging thereof, when the remaining power amount of a power supply, including first and second power sources, is less than a minimum power consumption amount required for a call, power is charged using the second power source. The remaining power amount resulting from the charging is compared with a power consumption amount corresponding to a callable time, and information that is associated with the callable time corresponding to a result of the comparison is outputted.