Wireless Charger Power Scheduling for Energy Waste Reduction
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Solution Overview
Problem
Existing wireless power systems face inefficiencies due to delivering either too much or too little energy, leading to waste, as they typically operate with fixed power settings that do not account for varying device energy needs over time.
Innovation Solution
A method and system where a wireless charger determines the power requirement of devices based on their scheduled operations and energy profiles, adjusting the power emission level to deliver the necessary energy efficiently, thereby reducing waste and optimizing energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a fixed power emission level is used by the wireless charger, then the system operation is simple, but energy waste occurs when the power delivered exceeds device needs
Solution Approach 1:
The wireless charger dynamically adjusts its power emission level based on real-time device power requirements and scheduling information. The system transitions from a static fixed power mode to a dynamic adaptive power mode, where the transmission power is continuously optimized to match actual device needs, thereby reducing energy waste without requiring complex infrastructure changes
Solution Approach 2:
The system implements a feedback mechanism where the wireless charger receives power requirement information from devices or scheduling entities, processes this information to determine optimal power levels, and adjusts its transmission accordingly. This closed-loop control enables the system to respond to changing power demands while minimizing energy waste
2Loss of energy
If power is delivered in advance or at wrong times, then device operation continuity is ensured, but energy efficiency deteriorates due to unconsumed wireless energy
Solution Approach 1:
The system uses scheduling information to perform preliminary actions by pre-planning power delivery timing and amounts based on anticipated device needs. The wireless charger receives scheduling information about future device operations and prepares appropriate power delivery plans in advance, ensuring power is available when needed while avoiding premature delivery that would result in waste
Solution Approach 2:
The wireless charger delivers power in periodic intervals synchronized with device operation schedules rather than continuously or in advance. The system aligns power transmission periods with actual device power consumption periods, ensuring energy is delivered when devices are actively consuming power and reducing unconsumed energy waste
3Adaptability or versatility
If fixed power settings are used, then system complexity is reduced, but adaptability to varying device energy needs deteriorates
Solution Approach 1:
The wireless charger is designed with multi-functionality to serve different device types with varying power requirements using a single system. The charger can adapt its transmission parameters based on received power requirement information, enabling it to efficiently serve multiple device categories (smartphones, tablets, laptops, etc.) without requiring separate specialized charging systems for each device type
Solution Approach 2:
The system changes transmission parameters (power level, timing, duration) based on received power requirement information and scheduling data. By dynamically adjusting these parameters according to device needs, the system achieves high adaptability to different device types and power requirements while maintaining a relatively simple base hardware architecture
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 ensures that devices receive the required energy at the right time, minimizing energy waste and conserving resources by dynamically adjusting power emission levels according to device needs, resulting in more efficient wireless power distribution.
Implementation Method 1
wireless power transfer, a wireless charger connected to a power source conveys the field energy across an intervening space to one or more receivers, where it is converted to electricity and consumed by a power-consuming device
Data Source
AI summary
A wireless charger can determine a power requirement associated with operating at least a first device at a scheduled time. The wireless charger can determine a power emission level for the wireless charger based, at least in part, on the power requirement, such that the power emission level will provide sufficient wireless energy to satisfy the power requirement. The wireless charger can transmit wireless energy at the power emission level to cause the device to operate.