Wireless Power Antenna Alignment via Received Power Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power supply systems using microwaves face inefficiencies and electromagnetic wave leakage due to positional deviations between power transmission and reception antennas, requiring large and complex configurations to accommodate movement and positional changes.
Innovation Solution
A wireless power supply method that adjusts the rotational and positional alignment of antennas using adjustment antenna elements arranged on the same plane, detecting and correcting deviations based on received power levels to ensure accurate and efficient power transmission with minimal leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large antenna is used to accommodate positional deviation, then power transmission reliability is improved, but device complexity and size increase
Solution Approach 1:
The patent applies dynamics by making the antenna system adjustable rather than fixed. The power transmission antenna and power reception antenna are positioned adjustably relative to each other, allowing the system to adapt to positional deviations dynamically. This resolves the contradiction by maintaining reliability through adjustment capability while avoiding the need for an excessively large fixed antenna structure.
Solution Approach 2:
The patent implements feedback by detecting the amount of received electric power and using this information to adjust the relative positions of the antennas. The control device monitors power reception levels and automatically positions the antennas to optimize transmission, thereby maintaining reliability without requiring complex predetermined antenna configurations.
2Adaptability or versatility
If microwave beam transmission is used for long distance, then adaptability to moving objects is improved, but electromagnetic wave leakage and interference increase
Solution Approach 1:
The patent uses dynamics by enabling real-time adjustment of antenna positions to track moving objects. The power reception antenna can be positioned to follow the movement of the power supply target, maintaining effective power transmission while minimizing beam spread and leakage to surrounding areas.
Solution Approach 2:
The patent replaces mechanical positioning systems with electromagnetic field-based detection and control. By detecting received power levels and automatically adjusting antenna positions through control devices, the system achieves precise tracking of moving objects without requiring complex mechanical positioning mechanisms, thereby reducing electromagnetic wave leakage.
3Productivity
If positional adjustment mechanism is added, then power transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by making the antennas serve dual functions: both power transmission/reception and positional detection. The same power transmission antenna and power reception antenna are used for both generating/detecting electromagnetic waves and determining relative positions based on signal strength, eliminating the need for separate positioning systems and reducing overall device complexity.
Solution Approach 2:
The patent implements self-service by enabling the system to automatically detect and correct its own positional deviations. The power reception antenna detects the amount of received power, and this information is fed back to automatically adjust the relative positions of the antennas, allowing the system to self-optimize without external intervention or complex control mechanisms.
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
This method enables precise and safe wireless power supply with reduced electromagnetic wave leakage and eliminates the need for complex configurations, allowing for accurate alignment and efficient power transfer without additional positioning systems.
Implementation Method 1
transmitting electric power wirelessly by microwaves between a power transmission antenna and a power reception antenna
Implementation Method 2
the electric power is transmitted wirelessly to the power reception antenna, and then the electric power is supplied to a power supply target
Implementation Method 3
adjusting a rotational deviation and a positional deviation of the power transmission antenna and the power reception antenna based on an amount of the received electric power
Data Source
AI summary
A rotational deviation and a positional deviation of a power transmission antenna and a power reception antenna are adjusted using an amount of electric power received in adjustment antenna elements provided on the same plane as the power transmission antenna and the power reception antenna.