Wireless Power Management Detecting Charge Insufficiency
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Solution Overview
Problem
Conventional wireless power supply systems face inefficiencies in charging power storage devices due to positional shifts between primary and secondary coils, varying task durations, and differing power consumption loads, leading to insufficient charging and potential device shutdowns, as they rely solely on detecting full charge states rather than power insufficiency.
Innovation Solution
A wireless power supply management apparatus that acquires and analyzes charge and discharge information across multiple periods to detect power insufficiency, outputs warnings or adjustments to mitigate charge shortages, and adjusts power transmission to ensure adequate charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charge is performed for a predetermined period of time, then the power storage device can be charged with electric power, but charge insufficiency occurs when positional relationship between coils is shifted or task duration varies
Solution Approach 1:
The patent implements feedback by detecting the charged state of the power storage device and comparing it with the required power consumption pattern. The detecting unit monitors whether sufficient charge has been accumulated for future tasks, and this information feeds back to control the charging process, ensuring reliable power supply even when charging duration or coil positioning varies.
Solution Approach 2:
The patent applies preliminary action by detecting in advance whether the power storage device has sufficient charge for future tasks before actual power consumption occurs. This allows the system to identify charge insufficiency early and take corrective measures, preventing device shutdown during task execution.
2Device complexity
If conventional full charge detection is used, then charging control is simple, but charge insufficiency cannot be properly detected for varying power consumption patterns
Solution Approach 1:
The patent applies dynamics by transitioning from a static full charge detection threshold to a dynamic detection method that adapts to varying power consumption patterns. The system adjusts its detection criteria based on the specific task requirements and power consumption characteristics, enabling accurate charge sufficiency detection for different operational scenarios without excessive complexity.
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
Properly detects and outputs charge insufficiency in power storage devices, preventing device shutdowns by adjusting power transmission and operation modes to maintain sufficient energy levels.
Implementation Method 1
wireless power supply system including a power storage device... repeatedly charge and discharge the power storage device
Data Source
AI summary
In order to solve a problem that it is not possible to properly detect and output charge insufficiency of a power storage device in a case where it is not charged to a fully charged state, a wireless power supply management apparatus used for a wireless power supply system configured to repeatedly charge and discharge a power storage device includes a detecting portion that acquires, for one or more charge periods, information regarding insufficiency of electric power charged in each charge period, and detects charge insufficiency of the power storage device using the acquired information; and an output portion that performs output according to a result of the detection by the detecting portion. Accordingly, it is possible to properly detect charge insufficiency of a power storage device.