Rail Cavity Data Link for Low-Interference Mobile Communication
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Solution Overview
Problem
Conventional rail systems face challenges in efficient and interference-free data transmission between movable and stationary components, particularly due to environmental interference and limited range.
Innovation Solution
The rail system incorporates a profiled part with a cavity and movable parts that project into the cavity, utilizing modulated light for data transmission, with absorbers to separate data regions and ensure low-interference communication, and also enables electromagnetic wave transmission through a slotted waveguide, allowing for dual physical principle data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data transmission is performed in free space using light, then the transmission range is limited and environmental interference occurs, but using a cavity structure increases device complexity
Solution Approach 1:
The patent merges the data transmission function with the existing rail structure by integrating a cavity into the rail profile. The cavity serves dual purposes: it provides a controlled transmission environment for light-based data communication while being structurally integrated with the rail itself, eliminating the need for separate housing structures.
Solution Approach 2:
The cavity acts as an intermediary between the transmitters/receivers and the external environment. It provides a controlled medium that guides light transmission while isolating the optical components from environmental interference such as dust, moisture, and external light sources.
2Length of stationary object
If the cavity is tightly implemented to reduce light losses and extend transmission range, then manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes the cavity geometry parameters, particularly the slot dimensions and shape, to achieve low light loss with relaxed manufacturing tolerances. By carefully selecting the slot width, length, and cross-sectional profile, the design maximizes light guidance while accommodating standard manufacturing capabilities.
3Reliability
If absorbers are added to separate data transmission regions to reduce interference, then device complexity increases, but without them mutual interference occurs
Solution Approach 1:
The absorber material is applied selectively at specific locations within the cavity where interference is most likely to occur, such as at regions where light paths from different transmitters may cross or where reflections could cause mutual interference. This localized application provides interference mitigation while minimizing additional complexity.
4Ease of manufacture
If the profiled part is made as one piece with the rail for economical production, then the cavity integration is simplified, but manufacturing flexibility decreases
Solution Approach 1:
The rail system is segmented into functional zones along its length, with cavities positioned at specific intervals where data transmission is required. This allows the majority of the rail to maintain a simple, economical structure while incorporating complex cavity features only where needed, balancing manufacturing efficiency with functional requirements.
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 data transmission range and security by minimizing interference and allowing data exchange using both light and electromagnetic waves, with the ability to maintain communication through curves and varying distances, and supports both half and full duplex methods.
Implementation Method 1
a profiled part (5) situated on the rail, which has a cavity (42) that terminates at an opening into the environment, and the profiled part is arranged as a slotted waveguide, e.g., as a hollow waveguide, for example, in order to conduct electromagnetic waves inside the cavity
Implementation Method 2
data are transmittable between movable mobile parts by transmitting and receiving modulated light
Implementation Method 3
transmitting and receiving modulated light
Implementation Method 4
an absorber is situated between the regions of the mobile part in the rail direction in each case
Data Source
AI summary
In a rail system with a rail and mobile parts movable along the rail, e.g., rail vehicles, a profiled part is arranged on the rail and includes a cavity, which, e.g., terminates at an opening into the environment. Regions of a mobile part, e.g., regions of each mobile part, at least partially project into the cavity, and at least one transmitter and receiver are situated in the respective region.