Hopping Scheme for Embedded Wireless Sensors in Attenuating Media
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Solution Overview
Problem
Embedded RF transceivers in attenuating media, such as animal tissue, face shortened battery life due to power-hungry channel hopping regulations, leading to reduced communication efficiency and increased battery drain.
Innovation Solution
Implementing a method where the embedded transceiver operates at or above a threshold power to adhere to lower channel hopping requirements when inside the attenuating medium, reducing output power to below the threshold when outside, allowing for efficient data transmission without frequent channel hopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the embedded transceiver operates at or above threshold power to adhere to lower channel hopping requirements, then battery life is extended, but communication reliability may be compromised due to reduced power outside the medium
Solution Approach 1:
The transceiver applies different power levels locally based on the presence of an attenuating medium. When embedded in the medium, it operates at or above threshold power with reduced channel hopping. When outside the medium, it operates below threshold power. This local adaptation resolves the contradiction by optimizing power consumption and communication reliability for each specific operational context.
Solution Approach 2:
The transceiver dynamically adjusts its transmission power and channel hopping behavior based on whether it detects an attenuating medium. The system transitions between two operational states: high power with low channel hopping when embedded, and low power with standard channel hopping when external. This dynamic adjustment resolves the contradiction by adapting to changing environmental conditions.
2Reliability
If the embedded transceiver adheres to channel hopping regulations above threshold power, then communication reliability is improved, but energy consumption increases significantly
Solution Approach 1:
The transceiver changes key operating parameters (transmission power level and channel hopping frequency) based on the operational context. When embedded in an attenuating medium, it switches to high power mode with reduced channel hopping requirements, thereby improving reliability while managing energy consumption through the medium's natural attenuation properties.
3Use of energy by moving object
If the embedded transceiver operates below threshold power to reduce energy consumption, then battery life is extended, but channel hopping requirements increase reducing communication efficiency
Solution Approach 1:
The transceiver applies different operational characteristics locally based on environment. When outside the attenuating medium, it operates below threshold power with standard channel hopping. When embedded in the medium, it leverages the medium's attenuation to operate at high power with reduced channel hopping, thereby maintaining communication efficiency while managing energy consumption appropriately for each context.
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
This approach extends battery life and improves communication efficiency by reducing unnecessary channel hopping, maintaining effective data transmission while conserving power.
Implementation Method 1
leveraging RF attenuation in an RF attenuating medium, such as a cow tissue
Data Source
AI summary
A wireless communication method to alter RF regulatory channel hopping requirements (regulations) between a pair of transceivers is envisioned wherein an embedded transceiver embedded in an RF attenuating medium transmits signals at a lower hopping requirement than a paired open-air transceiver. The communication method adheres to these regulations, which define a threshold power for transmission above which require a high degree of frequency hopping. Because the attenuating medium attenuates the open-air RF signal from the embedded transceiver, channel hopping in the embedded transceiver is lowered however, the channel hopping in the open-air transceiver is not lowered. The two transceivers are essentially powered equally.