Wire Magnet Induction for Sensor Power

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Sensor devices deployed in remote locations often face power challenges due to limited battery life and unreliable solar power sources, which can require inconvenient maintenance.

Innovation Solution

A sensor device system that harnesses energy through electromagnetic induction using a wire proximate to a moving magnet in an external device, where relative motion between the wire and magnet generates current to charge an energy storage device, enabling continuous operation without direct power sources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If batteries are used to power sensor devices in remote locations, then the sensor device can operate independently, but the battery life is limited and requires replacement

Engineering Contradiction:
Improvebattery lifeVSAvoidbattery replacement
Core Design Contradiction:
Duration of action of moving objectVSEase of repair

Solution Approach 1:

The sensor device charges its own battery using the electromagnetic induction system integrated into the external device it monitors. The relative motion between the external device and sensor device generates electrical current that automatically recharges the battery, eliminating the need for manual battery replacement and enabling continuous operation.

Inventive Principle:
Principle #25Self-service

2Duration of action of moving object

If photovoltaic solar systems are used to power sensor devices, then continuous operation is possible, but the system requires periodic maintenance and is not always reliable

Engineering Contradiction:
Improvecontinuous operationVSAvoidpower source reliability
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The patent replaces the photovoltaic solar system with an electromagnetic induction-based power generation system. Instead of relying on sunlight conversion, the system uses relative motion between magnetic components to generate electrical current, providing a more reliable power source that works independently of weather conditions and requires no maintenance.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If sensor devices are deployed in remote locations without wired power sources, then deployment flexibility is improved, but power supply becomes unreliable

Engineering Contradiction:
Improvedeployment flexibilityVSAvoidpower supply reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The external device serves multiple functions: it performs its primary monitoring function while simultaneously acting as a power generator through electromagnetic induction. This dual functionality enables the sensor device to operate reliably in remote locations without wired power sources, as the external device itself provides the necessary electrical energy.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution provides a reliable and maintenance-free power source for sensor devices, ensuring continuous operation in remote or hard-to-reach locations by leveraging inherent motion in external devices, enhancing operational efficiency and reducing maintenance costs.

Implementation Method 1

relative motion between the second portion of the wire and the at least one magnet induces current in the wire

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11228191B2Sensor devices powered by inherent motion of external devices
Publication Date: 2022.01.18 CHEVRON USA INC
  • US11228191B2 patent drawing
  • US11228191B2 patent drawing
  • US11228191B2 patent drawing

AI summary

A sensor device can include an energy storage device that provides power when charged. The sensor device can also include a first sensor coupled to the energy storage device, where the first sensor measures at least one first parameter when receiving the power. The sensor device can further include a wire having a first portion and a second portion, where the first portion of the wire is coupled to the energy storage device, where the second portion of the wire is disposed proximate to the at least one magnet, where relative motion between the second portion of the wire and the at least one magnet induces current in the wire, where the current induced in the second portion of the wire flows to the energy storage device through the first portion of the wire to charge the energy storage device.