Train Configuration Monitoring via Wireless ID Exchange
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Solution Overview
Problem
Existing methods for monitoring the configuration of a train are economically impractical and cumbersome due to the need for expensive global positioning systems and complex communication networks, especially when applied to unpowered railway vehicles.
Innovation Solution
A method using low power radio modules installed on each railway vehicle to transmit unique identifiers, allowing a processing unit to determine the configuration of the train through simple data packet exchange, without the need for extensive cabling or networks, and enabling easy installation on various types of vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If global positioning system receivers are installed on every railway vehicle to determine train configuration, then the position of each vehicle can be determined, but the cost becomes prohibitively expensive and measurement errors up to a few meters occur
Solution Approach 1:
The patent replaces expensive GPS receivers with inexpensive wireless transceivers that can be easily installed on each railway vehicle. These low-cost devices transmit identification signals that are received by neighboring vehicles, enabling configuration monitoring without the high cost of GPS equipment on every vehicle.
Solution Approach 2:
The patent substitutes the mechanical/GPS-based position determination system with a wireless communication system. Instead of using satellite-based GPS receivers, the system uses wireless transceivers that exchange identification signals between adjacent vehicles to determine train configuration, eliminating the need for expensive GPS hardware.
2Measurement precision
If GPS receivers are installed on flatbed wagons to monitor train configuration, then vehicle positions can be tracked, but receivers on different vehicles may be at distances smaller than the error margin causing potential position swapping
Solution Approach 1:
The patent introduces wireless identification signals as an intermediary mechanism between vehicles. Each vehicle transmits its unique identification signal wirelessly, and receiving vehicles can identify which specific vehicle is adjacent to them, eliminating ambiguity about vehicle positions even when physically close together.
Solution Approach 2:
The patent uses wireless transmission of identification signals as a conceptual copy of the vehicle's identity, allowing the receiving vehicle to know exactly which vehicle it is communicating with without needing to physically measure or GPS-track the position, thus avoiding position swapping errors.
3Extent of automation
If synchronization signals and parameter measuring devices are installed in every railway vehicle to determine configuration, then train serialization can be achieved, but the method becomes expensive and cumbersome to install on existing vehicles
Solution Approach 1:
The patent makes the wireless transceiver universal by having it perform multiple functions: transmitting identification signals, receiving signals from neighboring vehicles, and providing this information to the control system. This multi-functionality eliminates the need for separate synchronization signals and parameter measuring devices, simplifying installation on existing vehicles.
Solution Approach 2:
The patent extracts the essential function of train configuration monitoring from the complex system of synchronization signals and parameter measurements, isolating only the critical element: wireless exchange of identification signals between adjacent vehicles. This simplified approach achieves automatic serialization without the cumbersome infrastructure of the previous methods.
4Reliability
If safety management devices with communication networks are installed on each railway vehicle to determine configuration, then train configuration can be determined, but the hardware cost and algorithm complexity increase significantly
Solution Approach 1:
The patent extracts only the essential configuration determination function from the complex safety management system. Instead of implementing full safety management devices with extensive communication networks, the invention uses simple wireless transceivers that exchange identification signals between adjacent vehicles, achieving configuration determination with minimal hardware and algorithmic complexity.
Data Source
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Figure 3
AI summary
The current invention relates to a method for monitoring the configuration of a train, the train comprising a plurality of railway vehicles coupled to each other, each of the railway vehicles comprising a monitoring module on each end, each monitoring module comprising a unique identifier, a low power radio configured to have a range within free space of at least 3 m and at most 10 m, a memory and a communication means to wirelessly communicate with a processing unit. The inventions also relates to a device for monitoring the configuration of a train.