Railway Wayside Object Controller Remote Data Analysis
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Solution Overview
Problem
Existing railway wayside object controllers face issues such as high costs due to reliability and safety requirements, complex components leading to obsolescence, and bandwidth limitations in data transmission, along with challenges in site compatibility and environmental protection.
Innovation Solution
A railway wayside object controller design that offloads data analysis to a remote digital processor, using an analogue signal processor and signal converter to transmit raw digitised waveforms, reducing local processing and hardware complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional wayside object controller is used with local digital processing unit, then data processing can be performed locally, but device complexity increases and components become obsolete faster
Solution Approach 1:
The patent extracts the digital processing functionality from the wayside object controller and relocates it to a remote digital processor. The wayside object controller now only contains the analogue signal processor and signal converter, while the remote digital processor handles all data analysis, diagnostic capabilities, and communication functions. This extraction reduces the complexity of the wayside device and eliminates the need for frequent local hardware upgrades.
2Reliability
If high-grade components are used to meet reliability and safety requirements, then system reliability improves, but cost increases
Solution Approach 1:
The patent employs a disposable analogue signal processor that can be easily replaced if needed, rather than investing in expensive, complex digital processing hardware. The simplified design uses standard analogue components that are cheaper to manufacture and replace, while the remote digital processor handles the complex processing functions centrally, reducing the need for expensive high-grade components at the wayside location.
3Temperature
If ventilation grids are added to provide ventilation, then heat dissipation improves, but water ingress protection deteriorates
Solution Approach 1:
The patent removes the need for ventilation grids by eliminating the internal digital processing unit that would generate heat requiring ventilation. With only the analogue signal processor remaining, the device requires minimal ventilation, allowing the housing to be fully sealed against water ingress while still maintaining adequate thermal management for the simplified component set.
4Loss of information
If bandwidth of network connection is increased, then data transmission capability improves, but device complexity and cost increase
Solution Approach 1:
The patent extracts all data processing and analysis functions from the wayside object controller to a remote digital processor. This allows the use of standard, lower-bandwidth communication interfaces for data transmission, as the complex processing that would require high bandwidth is performed remotely. The wayside controller only transmits raw analogue signal data, which requires minimal bandwidth compared to processed digital data streams.
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
Reduces costs, simplifies installation, improves reliability, and enhances diagnostic capabilities by transmitting raw data for remote analysis, while minimizing environmental impact and reducing hardware requirements.
Implementation Method 1
a signal converter coupled to the analogue signal processor and adapted to convert reversibly between digitised waveforms and analogue signals
Data Source
Figure 1~2
Figure 3~4
AI summary
A railway wayside object controller (20), railway signalling infrastructure and methods of operating the railway signalling infrastructure are described. The analysis of data obtained by the wayside object controller (20) is done remotely, with only raw, unprocessed digital data being transmitted from the wayside object controller. This removes the requirement for data processing to be done locally on site within the signalling infrastructure.