Wireless Energy Data Transmission Coil Segmentation

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Solution Overview

Problem

Existing wireless energy and data transmission systems face interference and wear issues due to simultaneous unidirectional or bidirectional transmission of electrical energy and data, leading to errors and energy losses, particularly in rotating mechanical systems where contact-based solutions are impractical.

Innovation Solution

A system utilizing separate coils or conductor tracks for energy and data transmission, with distinct frequency ranges and modulation methods to minimize interference, including the use of filters and magnetic field-guiding materials to enhance signal separation and efficiency, allowing for virtually interference-free and wear-free transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate coils are used for energy and data transmission with distinct frequency ranges, then interference between energy and data transmission is reduced, but device complexity increases

Engineering Contradiction:
Improvedata transmission securityVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system divides the transmission function into separate coils: one coil dedicated to energy transmission and another coil dedicated to data transmission. This segmentation eliminates mutual interference between energy and data channels, ensuring reliable data transmission while maintaining wireless energy transfer capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs distinct frequency ranges for energy and data transmission. The energy transmission uses a higher frequency range while data transmission uses a lower frequency range, creating frequency separation that prevents interference. This parameter differentiation allows both functions to coexist without mutual disruption.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If contact-based connector systems are used, then secure transmission of energy and data signals is achieved, but wear and vibration problems occur leading to transmission errors

Engineering Contradiction:
Improvetransmission securityVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent replaces mechanical contact-based connector systems with wireless electromagnetic induction-based transmission systems. This substitution eliminates mechanical wear and vibration issues inherent in contact-based systems while maintaining secure transmission of energy and data signals through electromagnetic fields.

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

3Ease of operation

If electrical inductive or capacitive systems are used for wireless transmission, then contactless energy or data transmission is achieved, but mutual interference occurs leading to errors and energy losses

Engineering Contradiction:
Improvecontactless transmissionVSAvoidtransmission accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system separates energy transmission and data transmission into distinct coils, preventing mutual interference between the two wireless transmission channels. This segmentation maintains the advantages of contactless transmission while eliminating the interference problems that occur when both signals share the same transmission path.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

By assigning different frequency ranges to energy and data transmission coils, the system creates parameter differentiation that prevents electromagnetic interference. This allows both wireless transmission functions to operate simultaneously without compromising transmission accuracy or causing energy losses.

Inventive Principle:
Principle #35Parameter changes

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 simultaneous, high-security, and low-error transmission of energy and data over long periods without maintenance, with compact design and resistance to environmental influences, maintaining high data transmission rates suitable for various applications.

Implementation Method 1

at least two coils or electrical conductor tracks arranged at a distance from one another for the transmission of energy

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The electrical coils or electrical conductor tracks for the transmission of data are operated with electrical voltage at a frequency which is lower than the frequency at which an electrical voltage is used for the transmission of energy

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP3440782B1System for wirelessly transmitting energy and data
Publication Date: 2020.07.15 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • EP3440782B1 patent drawingFigure 1
  • EP3440782B1 patent drawingFigure 2
  • EP3440782B1 patent drawingFigure 3

AI summary

The invention relates to a system for wirelessly transmitting energy and data, in which at least two coils or electrical conductor tracks for transmitting energy which are arranged at a distance from one another are present. In this case, at least one electrical coil or electrical conductor track for transmitting energy and/or at least one electrical coil or electrical conductor track for transmitting data is/are respectively connected to an electrical AC voltage source in each case. In this case, at least one electrical AC voltage source can be modulated. The electrical coils or electrical conductor tracks for transmitting data are operated with electrical voltage at a frequency which is lower than the frequency at which an electrical voltage for transmitting energy using the electrical coils or electrical conductor tracks is used to transmit energy.