Planar Drive Rotor Coil Load Modulation for Reliable Data Transfer
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Solution Overview
Problem
Existing planar drive systems face challenges in efficiently transmitting data between the stator and rotor, particularly due to the limitations of existing data transmission methods which struggle with noise immunity and reliability.
Innovation Solution
The proposed planar drive system employs a method where the rotor temporarily loads its coil to increase current consumption of the stator conductors, allowing for data transmission through load modulation. This involves generating an alternating magnetic field by the stator, inducing an alternating voltage in the rotor coil, and modulating the rotor coil loading to transmit data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional data transmission methods are used between stator and rotor, then the system structure remains simple, but noise immunity and data transmission reliability deteriorate
Solution Approach 1:
The rotor coil serves dual purposes: it functions as both the drive coil for generating motion and as the data transmission medium. By temporarily loading the rotor coil, data is transmitted through variations in current consumption of the stator conductors, eliminating the need for separate communication hardware and improving reliability without significantly increasing system complexity
Solution Approach 2:
The system uses its own operational components (stator conductors and rotor coil) for both driving and communication functions. The data transmission is achieved by modulating the existing electromagnetic interaction between stator and rotor, rather than introducing independent communication subsystems, thereby maintaining structural simplicity while enhancing reliability
2Reliability
If the rotor temporarily loads the rotor coil to transmit data, then noise immunity improves, but current consumption increases
Solution Approach 1:
The rotor coil is temporarily and periodically loaded only during data transmission periods, rather than continuously. This allows data to be transmitted through controlled variations in current consumption, improving noise immunity through deliberate modulation while minimizing overall energy increase by limiting the duration and frequency of loading events
Solution Approach 2:
The rotor coil loading is applied partially and selectively only when data transmission is required, rather than continuously. This partial action approach achieves sufficient noise immunity for reliable communication while avoiding excessive current consumption that would occur with continuous loading, optimizing the trade-off between reliability and energy use
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 enables reliable data transmission from the rotor to the stator by leveraging the increased current consumption caused by the rotor coil loading, thereby improving noise immunity and data transmission reliability.
Implementation Method 1
The stator is embodied to carry out the energization of stator conductors in such a way that an alternating magnetic field may be generated via energized stator conductors
Implementation Method 2
The rotor comprises at least one rotor coil in which an alternating voltage may be induced due to the alternating magnetic field
Data Source
AI summary
A planar drive system comprises a stator and a rotor. The stator comprises a plurality of energizable stator conductors. The rotor comprises a magnet device having at least one rotor magnet. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device in order to drive the rotor. The stator is configured to carry out energization of the stator conductors so that an alternating magnetic field can be generated via the energized stator conductors. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field. The planar drive system is configured to transmit data from the rotor to the stator, and the rotor is configured to temporarily load the at least one rotor coil to temporarily cause increased current consumption of the energized stator conductors of the stator.