Multi-Antenna Signal Compensation for Wireless Charging Links
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Solution Overview
Problem
Existing communication systems face challenges in maximizing transmission and reception strength of communication signals in shadow areas, particularly within buildings and vehicles, due to obstacles like metal structures, where the position of antennas and communication devices affects signal quality.
Innovation Solution
A communication signal compensator system that uses multiple antennas and a switch control unit to select the antenna with the greatest signal magnitude, integrated with a wireless charging device to amplify both power and signal transmission, reducing cable length and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are provided to maximize signal reception, then the signal reception strength is improved, but the device complexity increases
Solution Approach 1:
The system divides the antenna function into multiple separate antennas instead of using a single antenna. Each antenna is independently connected to the switch unit, allowing the system to segment the signal reception function across multiple elements to improve overall reception reliability while managing complexity through modular architecture
Solution Approach 2:
The switch unit dynamically selects which antenna to connect to the communication signal compensator based on real-time signal conditions. This dynamic switching capability allows the system to adapt to changing environmental conditions and optimize signal reception without permanently increasing the active complexity of the system
2Device complexity
If the antenna and communication device positions are fixed, then the device complexity is reduced, but the signal transmission and reception strength varies with position
Solution Approach 1:
The communication signal compensator receives feedback about signal strength from multiple antenna inputs and uses this information to determine which antenna provides the strongest signal. This feedback mechanism allows the system to automatically compensate for position-related signal variations without requiring complex mechanical adjustment systems
Solution Approach 2:
The communication signal compensator is designed to work with multiple antennas simultaneously, making it a universal solution that can handle signal reception from various positions and orientations. This multi-functional design allows the same device to serve multiple antenna configurations without requiring position-specific customization
3Adaptability or versatility
If longer cable lengths are used to connect antennas, then the adaptability to different positions is improved, but the risk of cable errors and tangling increases
Solution Approach 1:
The switch unit provides a selective connection mechanism that allows the system to use only the necessary cable length for each specific antenna configuration. Instead of requiring excessive cable length to accommodate all possible positions, the system selectively connects antennas that are optimally positioned, reducing the required cable length and minimizing tangling risks while maintaining position adaptability
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
Enhances signal transmission and reception strength without relying on specific antenna positions, simplifies the structure, and reduces the risk of cable errors and tangling, while maintaining efficient wireless charging.
Implementation Method 1
a wireless charging unit for charging the portable device by using a wireless charging coil
Implementation Method 2
a communication signal may be received at the greatest magnitude by selecting an antenna having a greatest magnitude of a reception signal
Implementation Method 3
a communication signal compensator for maximizing transmission and reception strength of a communication signal
Data Source
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AI summary
The present invention relates to a wireless charging device including a communication signal compensator, a communication signal compensator comprises a power detector configured to detect a magnitude of a communication signal received through each of the plurality of antennas, and a control unit configured to acquire a communication signal having the greatest signal magnitude as the detection result, select an antenna corresponding to the communication signal having the greatest signal magnitude among the plurality of antennas, and transmit, to the coupling antenna, a switch control signal for controlling the switch to be connected to the selected antenna.