Wireless Power Receiver Communication Switching for Reliable Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission systems face challenges in performing appropriate control communication between power transmission and receiving apparatuses, particularly when using both in-band and out-band communication methods.
Innovation Solution
The system incorporates a power receiving apparatus and a power transmission apparatus, each equipped with both in-band and out-band communication units. A control unit manages these communication units to determine the appropriate method for control communication based on the capabilities of the connected devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If in-band communication is used for control communication, then the communication can be performed using the same frequency as power transmission/reception, but the communication range is narrower and errorless communication is more difficult to achieve
Solution Approach 1:
The system dynamically selects between in-band and out-band communication methods based on the communication environment and requirements. The power receiving apparatus and power transmission apparatus can switch communication bands to maintain reliable control communication across different ranges and conditions.
Solution Approach 2:
Out-band communication serves as an intermediary solution when in-band communication cannot achieve errorless communication within the required range. By using a different frequency band, the system can extend communication range while maintaining reliability through alternative communication pathways.
2Area of stationary object
If out-band communication is used for control communication, then the communication range is extended, but the system requires additional frequencies and communication units
Solution Approach 1:
The power transmission apparatus and power receiving apparatus are designed with multi-functional communication capabilities, incorporating both in-band and out-band communication units. This universal design allows the same device to operate in different communication modes depending on environmental requirements, extending range without requiring separate dedicated systems for each mode.
3Adaptability or versatility
If both in-band and out-band communication capabilities are incorporated, then the system can adapt to different communication requirements, but the device complexity and control difficulty increase
Solution Approach 1:
The system performs preliminary assessment of communication requirements and environmental conditions to determine the appropriate communication band before initiating control communication. By evaluating conditions in advance and selecting the suitable band beforehand, the system avoids the complexity of real-time switching and simplifies control while maintaining 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
This approach enables effective control communication, ensuring that the system can establish the correct connections for power transmission and reception, thereby improving the reliability and efficiency of wireless power transfer.
Implementation Method 1
power transmission/reception and control communication therefor are performed by magnetic induction
Implementation Method 2
a first communication unit configured to perform communication of a first method using a first frequency to be used for power transmission; a second communication unit configured to perform communication of a second method using a second frequency different from the first frequency
Data Source
AI summary
A power receiving apparatus, which has a first communication function and a second communication function, controls the first communication function to receive a first signal including information representing whether a power transmission apparatus can execute control communication using a second method, controls, based on the information representing that the power transmission apparatus can execute the control communication using the second method, the first communication function to transmit, to the power transmission apparatus, a second signal to request identification information of the power transmission apparatus for the communication of the second method and receive the identification information from the power transmission apparatus, and determines which one of the first communication function and a second communication function should be used for the control communication, based on the first signal and whether the identification information is received.