Wireless Power Reservation Control for Multi-Receiver Charging
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Solution Overview
Problem
Existing wireless power transfer systems face inefficiencies and complexities in adapting power levels to varying device requirements, particularly when multiple devices are involved, leading to suboptimal operation and resource wastage.
Innovation Solution
A wireless power transmitter apparatus with a power reserver that manages power levels by reserving and dynamically adjusting power levels for multiple receivers, ensuring they do not exceed a maximum threshold, and negotiating power level changes with individual receivers to optimize resource sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power transmitter is set up to provide maximum power level, then reliable operation is ensured, but efficiency decreases and resources are wasted
Solution Approach 1:
The system dynamically adjusts the reserved power level based on actual device needs and available capacity. The power transmitter continuously monitors power consumption patterns and modifies reservation levels in real-time, transitioning from a static maximum power setting to a dynamic adaptation mechanism that matches supply with actual demand.
Solution Approach 2:
The invention changes the parameter of reserved power level from a fixed maximum value to a variable parameter that can be adjusted based on device characteristics, power consumption patterns, and system conditions. This allows the system to optimize the balance between reliability and efficiency by modifying power reservation parameters according to actual needs.
2Productivity
If power reservation is shared among multiple devices, then resource utilization improves, but device complexity increases
Solution Approach 1:
The system merges power reservation management for multiple devices into a unified control mechanism. Instead of maintaining separate reservation systems for each device, the invention combines them under a single power reserver that coordinates allocations across all connected devices, reducing overall system complexity while improving resource utilization.
Solution Approach 2:
The power reserver component is designed with multi-functionality to handle power reservation, monitoring, and adjustment for various types of devices simultaneously. It serves multiple purposes: allocating power to individual devices, coordinating shared resources, and adapting to different device characteristics, thereby reducing the need for device-specific complexity.
3Adaptability or versatility
If negotiation process is implemented for power level changes, then adaptability improves, but operation time increases
Solution Approach 1:
The system performs preliminary power level negotiations during device connection and initialization phases, establishing reserved power levels before actual power transfer begins. This preliminary action allows the negotiation to occur in advance, so that when power transfer starts, the parameters are already optimized without causing delays in the main operation.
Solution Approach 2:
The negotiation process is implemented periodically at key milestones such as device connection, power level changes, or system reconfiguration events, rather than continuously. This periodic approach maintains adaptability by updating power levels when needed while minimizing the time overhead of negotiations.
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 enhances flexibility, efficiency, and reliability in power transfer operations, allowing simultaneous support for multiple devices while optimizing resource utilization and user experience.
Implementation Method 1
wireless power transfer systems... operate with a variety of different devices... power is inductively transferred from a transmitter coil in a power transmitter device to a receiver coil in the individual devices
Data Source
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AI summary
A power transmitter (101) wirelessly provides power to a plurality of power receivers (105) via an inductive power transfer signals. The power transmitter (101) comprises a power reserver (209) determining reserved power levels for power receivers. In response to receiving a power reservation request, the power reserver (209) proceeds to determine a combined reserved power level including the requested reserved power level and already reserved power levels; comparing the combined reserved power level to a maximum power level threshold; transmit a power reservation change request to an already supported power receiver (105) if the combined reserved power level exceeds the maximum power level threshold; and to reserve a reserved power level for the first power receiver (105) with this being dependent on the response to the power reservation change request received from the first supported power receiver (105).