Power Feed Mat Placement Evaluation for Wireless Charging Demand
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Solution Overview
Problem
The existing power feed systems, such as those described in Japanese Patent Laying-Open No. 2018-157686, face challenges in determining the optimal placement location for a power feed mat due to its high degree of freedom in placement, making it difficult for users to select appropriate locations, especially in environments with varying traffic patterns, power requirements, and user preferences.
Innovation Solution
A power feed system that includes a computer, referred to as an evaluation computer, which assesses the placement benefit of a power feed mat at different locations within a subject region by analyzing traffic patterns, duration of stay, remaining power levels, and density of people, facilitating the selection of optimal placement locations and providing improvement strategies to enhance placement benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a power feed mat is placed in a location with high traffic of movable bodies, then the frequency of use and placement benefit increase, but the mat is more likely to deteriorate due to increased wear and exposure
Solution Approach 1:
The system performs preliminary evaluation of placement benefits for multiple candidate locations before final placement. By analyzing traffic patterns, power consumption data, and usage frequency in advance, the system identifies optimal locations that balance high productivity with acceptable durability, preventing premature placement in overly demanding environments
Solution Approach 2:
The evaluation system changes multiple parameters simultaneously including traffic volume, duration of stay, remaining power levels, and density of people to compute a comprehensive placement benefit score. This multi-parameter approach allows optimization of the trade-off between usage frequency and deterioration by considering the overall operational context rather than single factors
2Productivity
If the power feed mat is placed to serve areas with high power demand, then the placement benefit increases, but the complexity of selecting the optimal location increases due to multiple evaluation criteria
Solution Approach 1:
The evaluation computer performs multiple functions including collecting traffic data, monitoring power consumption, analyzing duration of stay, measuring density of people, and computing placement benefit scores. By consolidating these diverse evaluation tasks into a single multi-functional system, the patent manages complexity while comprehensively assessing power supply efficiency and other critical factors
3Duration of action of moving object
If the power feed mat is placed in an area with long duration of stay, then the placement benefit increases, but the mat experiences prolonged exposure leading to increased deterioration
Solution Approach 1:
The system evaluates the duration of stay as one of multiple parameters before determining optimal placement. By analyzing historical data on how long movable bodies remain in different areas, the system can identify locations where long duration of stay provides sufficient power benefit without exposing the mat to excessively demanding conditions that would cause rapid deterioration
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
The system effectively facilitates the placement of power feed mats at locations with higher traffic and power demand, ensuring efficient and convenient power supply to movable bodies while minimizing deterioration and optimizing user benefits.
Implementation Method 1
a power feed mat 100 placed on a floor indoors and configured to wirelessly feed power to a movable body 201 that comes closer thereto
Data Source
AI summary
A power feed system includes a computer that evaluates benefit obtained when a power feed mat is placed, for each of a plurality of locations within a subject region where the power feed mat can be placed, the power feed mat being configured to wirelessly feed power to a movable body. In a power feed method using such a computer, a display shows a result of evaluation of the benefit for each location within the subject region evaluated by the computer.