Inductive Power Transfer with Redundant Measurement Signal Channels
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Solution Overview
Problem
Existing induction energy transmission systems lack sufficient safety measures to ensure reliable and error-free transmission of measurement variables, potentially leading to user risks and malfunctions.
Innovation Solution
The system incorporates multiple information channels for transmitting coded measurement variables, including a first information channel using radio signals and a second channel utilizing the supply and receiving induction elements, allowing for verification and redundancy in signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single information channel is used for transmitting measurement variables, then the device complexity is reduced, but the reliability and safety of signal transmission deteriorates
Solution Approach 1:
The patent divides the information transmission system into multiple independent channels: a first information channel for primary data transmission and a second information channel for redundant/verification transmission. This segmentation allows the system to achieve higher reliability through diversity without requiring complete redesign of the entire transmission system, as each channel can operate independently with its own modulation and frequency characteristics.
Solution Approach 2:
The patent employs different transmission parameters for the two information channels, including different frequency ranges (first channel uses lower frequencies, second channel uses higher frequencies), different modulation schemes, and different signal characteristics. This parameter diversity ensures that the channels can operate simultaneously without interference and provides robustness against frequency-specific interference or fading conditions.
2Reliability
If multiple information channels are implemented for redundant signal transmission, then the safety and reliability improve, but the device complexity increases
Solution Approach 1:
The supply induction element serves multiple functions: it acts as both an energy transmission medium for inductive power transfer and as a communication channel for the second information channel. This multi-functionality reduces the need for separate dedicated communication hardware, thereby limiting the increase in device complexity while still achieving redundant transmission capability.
Solution Approach 2:
The patent uses the electromagnetic field between the supply induction element and receiving induction element as an intermediary medium for transmitting the second information channel. This intermediary approach allows data transmission to occur through the existing energy transfer path without requiring additional physical communication infrastructure, thus managing complexity effectively.
3Object-affected harmful factors
If redundant information channels are used for verification, then user safety improves, but the energy consumption increases
Solution Approach 1:
The system implements partial redundancy by using the second information channel primarily for verification and critical safety-related data transmission rather than duplicating all communications. The second channel carries measurement variables and status information that are essential for safety verification, while allowing the system to manage energy consumption by not fully utilizing both channels for all types of data transmission.
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 enhances safety and reliability by ensuring correct transmission of measurement variables, reducing user risks and improving usability and convenience.
Implementation Method 1
at least one supply induction element which in an operating state provides energy inductively
Implementation Method 2
a first information channel for transmitting at least one first signal between the receiving unit and the supply unit
Data Source
AI summary
An induction energy transmission system includes a supply unit having a supply induction element to inductively provide energy in an operating state. A receiving unit receives at least part of the energy provided by the supply induction element in the operating state. A sensor unit detects a measurement variable and a first information channel transmits a first signal between the receiving unit and the supply unit, with the first signal coding the measurement variable. A second information channel which differs from the first information channel transmits a second signal between the receiving unit and the supply unit, with the second signal coding the measurement variable.