Wireless Power Split for Low-Power Sensing and Battery Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission technologies for low-power devices, such as nerve stimulators, result in frequent surgeries due to battery discharge and low energy efficiency, as energy is lost during battery charging.
Innovation Solution
A method and device configuration that allows a low-power device to perform operations using power from both an internal battery and wirelessly transmitted power, with high-power consuming operations being conducted solely with wirelessly received power to extend battery life and enhance energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless power transmission is used to charge the internal battery, then the battery can be recharged, but energy is lost during charging and frequent surgeries are still required
Solution Approach 1:
The patent segments the power consumption into two distinct parts: low-power sensing operations run on the internal battery, while high-power processing operations run on externally provided power. This segmentation allows the system to minimize battery usage and eliminate charging losses by only using the battery for essential low-power functions.
Solution Approach 2:
The system performs self-service by processing sensing data externally rather than internally. The low-power device collects data using its battery, then transmits this data to an external device that performs the computationally intensive processing, thereby saving the internal battery from high-power consumption and eliminating the need for frequent recharging.
2Duration of action of moving object
If all operations are performed using internal battery power, then the device can operate independently, but the battery depletes quickly requiring frequent surgeries
Solution Approach 1:
The patent divides operations into two categories: independent low-power sensing operations that extend battery life, and dependent high-power processing operations that consume external power. This segmentation enables the battery to last much longer while still maintaining full functionality through the combination of both operation types.
Solution Approach 2:
The system transitions from a single-dimension power model (everything runs on battery) to a two-dimension power model combining internal battery power for sensing and external power for processing. This dimensional change allows the device to maintain operational independence for data collection while relying on external infrastructure for computationally intensive tasks.
3Adaptability or versatility
If high-power operations are performed using internal battery, then all functions can be executed, but the power consumption exceeds what the battery can sustain
Solution Approach 1:
The patent segments functional capability into low-power sensing functions that run independently on the battery and high-power processing functions that run on external power. This segmentation allows the device to maintain full functional versatility while keeping battery power consumption within sustainable limits.
Solution Approach 2:
The patent introduces an intermediary external power source that handles high-power computational tasks. This intermediary allows the low-power device to access high-power functionality without directly consuming the battery, effectively decoupling functional capability from battery power consumption.
Data Source
AI summary
A method of controlling power on a low-power device and the low-power device for performing the method are provided. The method includes performing a first operation, of acquiring sensing data, using power stored in an internal battery of the low-power device, wherein the first operation consumes a first power consumption from the internal battery; and performing a second operation, with respect to the acquired sensing data, and which consumes a second power consumption, using power wirelessly transmitted from an external device located outside of the low-power device, wherein the second power consumption is greater than the first power consumption.