Arc Coupler Rotation Data Transmission
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Solution Overview
Problem
Current rotation information transmission systems face challenges in achieving high-speed data communication between rotating substrates without miniaturizing couplers, leading to signal interference and installation difficulties due to the limitations in coupler size and alignment.
Innovation Solution
A rotation information transmission apparatus with a first coupler in arc form on one substrate and a second coupler in arc form on another, where the length of the second coupler's arc is shorter, allowing for wireless communication of several Gbps without requiring extreme miniaturization, and enabling couplers to be installed around a rotational axis while allowing signal connection at various angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the length of the coupler is reduced to increase bandwidth and data transfer speed, then the bandwidth and data transfer speed are improved, but the coupler becomes difficult to install and requires extreme miniaturization
Solution Approach 1:
The system is divided into two separate substrates (first substrate and second substrate) with couplers formed on each. This segmentation allows the couplers to be manufactured and installed independently, avoiding the need for extreme miniaturization of a single coupler while still achieving high data transfer speeds through electromagnetic field coupling between the segmented components.
Solution Approach 2:
The invention transitions from a single-plane coupler design to a three-dimensional arrangement where the first coupler and second coupler are formed on opposite sides of a rotational axis. This dimensional change allows the couplers to be positioned at different radial distances from the rotation axis, enabling high-speed communication without requiring either coupler to be extremely small.
2Reliability
If the distance between connector terminals is narrowed to prevent brush contact, then the risk of adjacent brush contact is reduced, but the apparatus cannot be miniaturized
Solution Approach 1:
The invention replaces the mechanical contact-based brush and ring electrode system with a wireless electromagnetic field coupling system. Data is transmitted through capacitive and inductive coupling between transmission lines on the rotating and stationary substrates, eliminating the need for physical contact and the associated reliability issues while allowing for compact apparatus design.
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 reliable high-speed data communication of several Gbps without miniaturizing the couplers to an extent that installation becomes difficult, preventing signal interference and allowing for flexible coupler alignment, suitable for applications like surveillance cameras and robot joints.
Implementation Method 1
wireless communication of digital data by utilizing capacitive coupling and inductive coupling (together, referred to as electromagnetic field coupling) between transmission lines formed on the substrates that are placed in proximity to each other
Data Source
AI summary
The invention relates to a rotation information transmission apparatus where wireless communication of data of several Gbps is made possible without miniaturizing the coupler to such an extent that installation is difficult. A first substrate where a first coupler in arc form is provided in an upper portion or a lower portion and a second substrate where a second coupler in arc form of which the length of the arc is shorter than that of the first coupler in arc form is arranged in a location where coupling with the first coupler in arc form is possible are arranged so as to rotate relative to each other by fixing either the first substrate or the second substrate to a non-movable portion and fixing the other of the first substrate or the second substrate to a rotational member.