Wireless-Charged Secondary Power for Beacon Sensor Functions
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Solution Overview
Problem
Beacon and sensor devices powered by small batteries face challenges in providing enhanced functionality without increasing size and cost, as they require oversized batteries to support additional features like sensor monitoring and user input/output operations.
Innovation Solution
A dual power source system where a primary power source is used for basic functions, and a secondary power source, capable of wireless charging, is utilized for advanced functions, allowing 'as needed' power delivery and reducing overall device size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single power source is used to support both basic and advanced functions, then the device can perform enhanced functionality, but the battery size and cost increase significantly
Solution Approach 1:
The power system is divided into two separate power sources: a primary power source for basic functions and a secondary power source for advanced functions. This segmentation allows each power source to be sized appropriately for its specific workload, avoiding the need for an oversized single battery that would be required to handle all functions simultaneously.
Solution Approach 2:
The system dynamically switches between power sources based on functional requirements. The controller determines when to use the primary power source for basic operations and when to activate the secondary power source for advanced features, optimizing power utilization and extending operational flexibility without requiring a large fixed-capacity battery.
2Adaptability or versatility
If a single power source is used to support both basic and advanced functions, then the device can perform enhanced functionality, but the device cost increases
Solution Approach 1:
By segmenting the power system into two smaller power sources rather than one large power source, the overall cost is reduced. Each power source can be selected to match the specific power requirements of its designated functions, avoiding the premium cost of a high-capacity single battery and its associated charging infrastructure.
Solution Approach 2:
The system changes the power capacity parameters of individual power sources based on functional needs. The primary power source maintains adequate capacity for basic operations, while the secondary power source provides supplemental capacity only when advanced features are activated, optimizing the cost-performance ratio.
3Duration of action of moving object
If wireless charging is added to enable secondary power source charging, then the device can perform advanced functions with reduced primary battery drain, but the device complexity increases
Solution Approach 1:
The system replaces mechanical charging connections with wireless charging technology. The secondary power source can be recharged wirelessly through electromagnetic induction or resonance, eliminating the need for physical charging ports and cables, thereby reducing mechanical complexity while extending battery life through flexible recharging capability.
4Duration of action of moving object
If wireless charging is added to enable secondary power source charging, then the device can perform advanced functions with reduced primary battery drain, but additional components are required
Solution Approach 1:
The wireless charging components are designed to serve multiple functions: they can charge the secondary power source, provide power transfer between devices, and potentially serve as communication interfaces. This multi-functionality reduces the need for separate dedicated components for each function, minimizing overall system complexity while enabling extended battery life through wireless recharging capability.
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
Enables beacon and sensor devices to perform advanced functions without draining the primary battery, reducing size and cost while extending battery life by using wireless charging for the secondary power source when necessary.
Implementation Method 1
wireless sound power transmission through suitable techniques such as pocket-forming
Data Source
Figure 1~2
AI summary
A beacon and/or sensor device (100) having a primary and secondary power source uses the second power source in case of a requirement to carry out additional tasks such as advanced functions. The secondary power source of the beacon or sensor device is capable of being wirelessly charged by a wireless charging transmitter (200) when brought in close proximity and/or contact to the beacon and/or sensor device (100). Thus, the primary power source is not used and drained while performing advanced functions.