Inter-Device Charging Control with Dynamic Direction Switching
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Solution Overview
Problem
Existing methods for inter-charging between electronic devices, such as mobile phones, often result in random charging directions, inefficiency, and inability to continuously monitor and adjust charging based on device status, leading to inconvenient and inefficient charging processes.
Innovation Solution
A charging control method that involves sending and receiving data packets to determine and execute a charging strategy, including identifying device roles and adjusting power supply based on real-time characteristics like battery level and temperature, using a modified PD protocol for intelligent inter-charging communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two mobile phones charge each other using existing methods, then charging can be performed without external chargers, but the charging direction is random and inefficient
Solution Approach 1:
The patent implements a feedback mechanism where devices continuously exchange data packets containing battery status, temperature, and charging characteristics. The system determines charging direction based on real-time feedback from both devices, ensuring the device with lower battery level charges the device with higher battery level, thereby improving charging efficiency while maintaining versatility
Solution Approach 2:
Before charging begins, the system performs preliminary actions by exchanging data packets to identify device roles (charging device vs. being charged device) based on battery levels, temperature, and other characteristics. This preliminary determination prevents random charging direction and ensures efficient power transfer from the start
2Adaptability or versatility
If existing inter-charging methods are used, then devices can charge each other, but they cannot continuously monitor and adjust charging based on device status
Solution Approach 1:
The patent establishes a continuous feedback loop where devices periodically exchange data packets containing real-time status information (battery level, temperature, charging power). Based on this feedback, the system dynamically adjusts charging parameters or switches roles when conditions change (e.g., when the previously charged device has higher battery level or lower temperature), ensuring reliable and safe charging throughout the process
Solution Approach 2:
The charging system is designed to be dynamic rather than static. Devices can switch charging roles based on real-time conditions, and charging parameters are continuously adjusted according to device status changes. This dynamic approach enhances reliability by adapting to changing thermal and power conditions during the charging process
3Ease of operation
If random charging direction is used, then charging can start immediately, but it may charge a device with high electricity from one with low electricity
Solution Approach 1:
Before charging begins, the system performs a preliminary assessment by exchanging data packets to determine which device should be the charging source and which should be the sink. This preliminary action compares battery levels, temperature, and other characteristics to prevent energy waste from reverse charging, while still enabling quick charging initiation once the determination is made
Data Source
AI summary
A charging control method and an electronic device implementing a charging control method includes: sending a first data packet, in which, the first data packet includes to-be-charged identification information and first characteristic information of the first electronic device; receiving a second data packet corresponding to the first data packet sent by the second electronic device, in which, the second data packet includes power supply identification information and charging strategy information; determining and performing a charging strategy according to the second data packet, in which, the charging strategy includes at least one of: the first electronic device receiving power supply from the second electronic device, and the first electronic device supplying power to the second electronic device.