Inductive Power Supply Timing for Interference-Free Wireless Communication
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Solution Overview
Problem
Existing induction energy supply devices face interference between wireless communication signals and alternating electromagnetic fields, leading to transmission errors and reduced user convenience.
Innovation Solution
The induction energy supply device incorporates a control unit that temporarily interrupts the operation of the inverter unit during periodic intervals to enable reliable wireless communication, while also adjusting the frequency and duration of energy provision to ensure efficient power transfer and compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication is performed simultaneously with inductive energy supply, then communication functionality is provided, but transmission errors occur due to interference with the alternating electromagnetic field
Solution Approach 1:
The patent implements periodic interruption of the inductive energy supply during communication time windows. The control unit temporarily stops the inverter unit operation at regular intervals to create interference-free periods for wireless communication, thereby eliminating transmission errors caused by electromagnetic interference while maintaining both functions
2Reliability
If the inverter unit is interrupted for wireless communication, then communication reliability is improved, but energy supply continuity is reduced
Solution Approach 1:
The system uses periodic interruption with controlled duty cycles, where the inverter unit operates for most of the time and is briefly interrupted only during designated communication time windows. This allows maintaining high energy supply continuity while providing regular communication opportunities
Solution Approach 2:
The control unit dynamically adjusts the operation state of the inverter unit based on communication requirements. The system transitions between operating states (on/off) in a controlled manner, optimizing the balance between energy supply continuity and communication reliability
3Power
If the inverter unit operates at target power frequency, then power transfer efficiency is maximized, but gentle operation and longevity are reduced
Solution Approach 1:
The control unit adjusts the operating frequency parameter of the inverter unit. During transition time windows, the frequency is modified from the target power frequency to enable gentle run-up and run-down operations, reducing mechanical stress and extending the lifespan of the placeable unit while maintaining efficient power transfer during stable operation
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 enhances operating convenience, reliability, and electromagnetic compatibility, allowing for a broad power spectrum to support various devices with different power requirements and enabling gentle operation and longevity of placeable units.
Implementation Method 1
at least one supply induction element (14) for the inductive provision of energy to a placeable unit (16)
Data Source
AI summary
An induction energy supply device includes a placeable unit, a supply unit having a supply induction element designed to inductively provide energy to the placeable unit, an inverter unit designed to drive the supply induction element, and a control unit designed to control the inverter unit and comprising a communication unit for wireless communication between the control unit and the placeable unit. The control unit is designed to interrupt an operation of the inverter unit at temporally repeating intervals during an interruption time window for the wireless communication.