Wireless Charging Firmware Upgrade Without Reverse Power Hardware
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Solution Overview
Problem
Existing firmware upgrade methods for wireless charging receiving end chips in wearable devices require a reverse power supply circuit or wired charging, which increases device size and hardware cost and prevents waterproofing, leading to failed upgrades without these components.
Innovation Solution
A method and apparatus that maintain wireless charging during firmware upgrades by using a preset original data packet to continue energy transfer, caching a bootloader program, and verifying upgrade success, with backup data packets for failed attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reverse power supply circuit is used to power the receiving end chip during firmware upgrade, then the firmware upgrade can be performed, but the device size and hardware cost increase
Solution Approach 1:
The patent extracts the power supply function from the traditional reverse power supply circuit by utilizing the existing wireless charging power transmission channel. The receiving end chip uses the wireless charging power to fuel the firmware upgrade process, eliminating the need for separate reverse power supply hardware while maintaining upgrade capability.
Solution Approach 2:
The wireless charging power transmission channel is given dual functionality: it serves both the normal wireless charging operation and the firmware upgrade process. By making the power channel universal, the system eliminates the need for dedicated reverse power supply circuits, reducing device complexity and size.
2Reliability
If a wired charging interface is used to power the receiving end chip during firmware upgrade, then the firmware upgrade can be performed, but the waterproof requirement cannot be met
Solution Approach 1:
The patent removes the wired charging interface requirement by extracting the power supply function to the wireless channel. This allows firmware upgrades to occur through wireless power transmission alone, maintaining the waterproof integrity of the wearable device while enabling upgrade capability.
Solution Approach 2:
The patent replaces the mechanical wired charging interface with a wireless power transmission mechanism. This substitution eliminates the physical opening needed for wired charging, thereby preserving waterproof performance while providing firmware upgrade functionality.
3Device complexity
If energy transfer is stopped during firmware upgrade, then the upgrade process can be simplified, but the firmware upgrade fails
Solution Approach 1:
The patent maintains continuous energy transfer during the firmware upgrade process by keeping the wireless charging power transmission active. The receiving end chip continues to receive power throughout the upgrade, ensuring that the upgrade can complete successfully without interruption while avoiding the need to stop normal charging operations.
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
Ensures successful firmware upgrades without a reverse power supply circuit or wired interface, reducing hardware costs and enabling waterproofing in wearable devices.
Implementation Method 1
the receiving end chip needs to be powered through a reverse power supply circuit from the battery of the wearable device, or the receiving end chip is powered via a wired charging method
Data Source
AI summary
Provided are a firmware upgrade method and apparatus, a receiving end device, and a storage medium, The method includes: if an upgrade message for charging firmware is received during wireless charging, controlling a wireless charging receiving end device and a wireless charging transmitting end device to continue the wireless charging according to a preset original data packet of the charging firmware; updating a pre-stored data packet of the charging firmware in a first storage area according to an upgrade data packet of the charging firmware in the upgrade message during the wireless charging, so as to upgrade the charging firmware; and if the charging firmware is successfully upgraded, controlling the wireless charging receiving end device and the wireless charging transmitting end device to carry out the wireless charging according to the upgraded charging firmware in the first storage area.