Rail Vehicle Coupling Integrity Confirmation via Coded Signal
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Solution Overview
Problem
Existing systems for confirming the integrity of a railway convoy coupling are unreliable due to signal attenuation in long trains, making it difficult to distinguish the transmitted signal from random noise, leading to uncertain confirmation of the convoy's integrity.
Innovation Solution
A device with a communication medium between cars, where a second beacon generates a modulated signal with predetermined coding data, and a first beacon receives and compares this data to confirm the coupling integrity if it matches the expected code, using error detection algorithms to ensure reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If acoustic wave transmission through pressure pipe is used for long trains, then the detection range is extended, but the signal attenuation increases making it impossible to distinguish from noise
Solution Approach 1:
The patent replaces the acoustic wave transmission system with an electrical signal transmission system through cables. This substitution eliminates the signal attenuation problem that occurs with acoustic waves in long pressure pipes, as electrical signals can be transmitted over long distances with maintained signal integrity through the cable medium.
Solution Approach 2:
The patent changes the physical medium for signal transmission from acoustic waves in pressure pipes to electrical signals in cables. This parameter change fundamentally alters the transmission characteristics, enabling reliable signal transmission over long distances without the attenuation issues that plague acoustic wave systems.
2Reliability
If coded signals are transmitted to improve reliability, then the ability to distinguish signal from noise improves, but the device complexity increases
Solution Approach 1:
The patent uses a predefined code that is copied from the transmitting beacon to the receiving beacon. This code copying mechanism provides a simple yet effective way to verify signal authenticity and distinguish it from noise, without requiring complex processing or multiple sophisticated components.
Solution Approach 2:
The system transmits periodic coded signals at regular intervals. This periodic transmission allows the receiving beacon to expect and identify signals at known time intervals, making it easier to distinguish legitimate coded signals from random noise while maintaining system simplicity.
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 the reliability of confirming the convoy's integrity by allowing for the discrimination of the coded signal from noise, ensuring accurate detection of coupling integrity with a low error rate.
Implementation Method 1
the communication medium is an electric cable of the railway convoy, and in that the second beacon is capable of applying an electric signal to the communication medium
Data Source
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AI summary
The invention relates to a device for confirming the integrity of a coupling of a railway train comprising at least a first car and a second car, the device comprising a communication medium extending between the first car and the second car, a first beacon on board one of the cars and connected to the communication medium, a second beacon on board the other of the cars and connected to the communication medium, the device being characterized in that the communication medium is adapted to carry a signal modulated by predetermined coding data from the second beacon to the first beacon, and to break in the event of a break in a coupling between the two cars, and in that the device is adapted to confirm the integrity of a coupling between the cars of the railway train if the signal received by the first beacon is identical to the predetermined coding data.