Battery Pack NFC Power Control for Off-State Device Detection
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Solution Overview
Problem
Conventional electronic devices with near field communication functions cannot utilize this feature when powered off, limiting their ability to detect the device's position using external terminals.
Innovation Solution
A battery pack with a communicator and setting storage that supplies power to the communicator based on stored settings, allowing near field communication even when the electronic device is powered off, by electrically connecting the battery and communicator via a switch within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the electronic device is powered off to save energy, then power consumption is reduced, but the near field communication function cannot be used
Solution Approach 1:
The battery pack is divided into two independent power supply systems: one for the electronic device main body and another for the communicator. This segmentation allows the communicator to operate independently even when the main device is powered off, resolving the contradiction between power saving and communication availability.
Solution Approach 2:
The setting storage pre-stores power supply settings that determine when the communicator should be activated. This preliminary configuration enables the communicator to be powered on automatically under specific conditions (when the device is off) without requiring real-time decision-making, thus maintaining communication functionality while managing power consumption efficiently.
2Adaptability or versatility
If the communicator is always powered on to enable near field communication, then communication availability is improved, but power consumption increases
Solution Approach 1:
The power supply to the communicator is made dynamic rather than static. The switch controller dynamically adjusts the power supply state based on the power state of the electronic device and stored settings, allowing the communicator to be powered on only when necessary (when the device is off) and powered off when the device is on, thus optimizing power consumption while maintaining communication availability.
Solution Approach 2:
The communicator operates in periodic intervals rather than continuously. It is activated periodically when the electronic device transitions to a powered-off state and deactivated when the device is powered on, creating a rhythmic on-off pattern that reduces overall power consumption while ensuring communication functionality is available when needed.
3Adaptability or versatility
If the battery pack includes a communicator and setting storage to enable communication when off, then communication availability is improved, but device complexity increases
Solution Approach 1:
The battery pack is designed with multi-functionality, serving both as a power source for the electronic device and as an independent communication unit. By integrating the communicator and setting storage into the battery pack, the invention eliminates the need for separate communication modules in the main device, actually reducing overall system complexity while enabling communication when the device is off.
Data Source
AI summary
A battery pack according to the present disclosure comprises a battery that supplies power to the electronic device, a communicator that receives power from the battery and performs near field communication, and a setting storage that stores a setting related to power supply from the battery to the communicator, wherein when the battery pack is connected to the electronic device, the communicator is supplied with power from the battery on a basis of the setting stored in the setting storage and performs near field communication.