Wireless Device Radiative Power Harvesting and Coordination

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Solution Overview

Problem

Wireless communication devices powered by batteries face frequent charging needs due to limited battery capacity, which is inefficient and requires frequent connection to traditional electrical power sources.

Innovation Solution

Implementing a method where wireless communication devices coordinate to establish a radiative power delivery sequence, adjusting transmission frequency and power to enable cooperative wireless power transfer, allowing devices to receive power without disrupting communication modes and extending battery life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless communication devices use battery power, then portability and mobility are improved, but battery capacity is limited requiring frequent charging

Engineering Contradiction:
ImproveportabilityVSAvoidbattery life
Core Design Contradiction:
Ease of operationVSDuration of action of moving object

Solution Approach 1:

The patent implements a system where wireless communication devices can harvest power from ambient electromagnetic signals in the environment. The device serves itself by capturing and converting radio frequency energy from surrounding wireless communications into electrical power, thereby extending battery life without requiring frequent manual charging or connection to external power sources.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent changes the energy parameter by harvesting power from ambient electromagnetic fields at different frequencies and power levels. The system dynamically adjusts to available energy parameters in the environment, converting varying levels of ambient RF energy into usable electrical power to extend battery operation duration.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If wireless devices transmit at higher power, then communication range and reliability are improved, but energy consumption increases reducing battery life

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements a feedback mechanism where the wireless device monitors its own transmission power levels and adjusts accordingly. By harvesting power from ambient signals and receiving feedback on available energy reserves, the device can dynamically optimize transmission power to maintain reliable communication while minimizing energy consumption, preventing battery depletion during high-power transmission events.

Inventive Principle:
Principle #23Feedback

3Reliability

If traditional charging methods are used, then power delivery is reliable, but frequent connection to electrical sources is required reducing mobility

Engineering Contradiction:
Improvepower delivery reliabilityVSAvoidmobility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system enables wireless devices to harvest and store power from ambient electromagnetic environments continuously during normal operation. This self-charging capability eliminates the need for frequent connections to external electrical power sources, maintaining reliable power delivery while preserving device mobility and portability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent enables continuous power harvesting from ambient electromagnetic signals during normal device operation and communication. By continuously capturing and storing energy from the environment rather than relying on periodic charging events, the system maintains uninterrupted power supply and extends operational duration between intentional charging events.

Inventive Principle:
Principle #20Continuity of useful action

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 reduces the frequency of traditional charging by enabling efficient wireless power delivery, extending battery life and maintaining device functionality through coordinated power transfer sequences.

Implementation Method 1

a first wireless communication device generates and transmits a radio frequency signal modulated with encoded information. This radio frequency signal is transmitted into a wireless environment

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

The second wireless communication device demodulates and decodes the received signal to obtain the information

Methodology Applied
Scientific EffectElectromagnetic signal reception and demodulation: Electromagnetic Induction

Implementation Method 3

managing a communication band for wireless communication and radiative power delivery

Methodology Applied
Scientific EffectRadiative power delivery: Electromagnetic Induction

Data Source

PatentUS9408155B2Coordinated wireless communication and power delivery
Publication Date: 2016.08.02 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
  • US9408155B2 patent drawing
  • US9408155B2 patent drawing
  • US9408155B2 patent drawing

AI summary

The present disclosure is directed to a method, apparatus, and system for managing wireless communications between wireless devices, including providing radiative power delivery to the wireless devices. The wireless devices may include a communication transceiver to wireless communicate with other wireless devices and a radiative power harvester to receive radiative power transmissions from the other wireless devices. The wireless devices may also include a switching unit to selectively provide a connection to the communication transceiver and the wireless power harvester based on the mode of operation of the wireless devices.