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safety

Intelligent Computer Vision Agents Optimising PTI Safety and Train Dwell Times

Digital Rail have worked with Lancaster University on a project under which our intelligent computer vision system is optimising safety and vehicle dwell times. The project is based upon patented technology developed at Lancaster University. Years of research by Professor Plamen Angelov and Dr Gruff Morris have allowed the intelligent vision system to be computationally efficient to reduce data dimensionality in detecting both static and moving objects by autonomously performing platform train interface (PTI) monitoring after being taught what both a good and errant platform situation looks like.

Findings

The Vision system:

  • Can detect where passengers are on the platform (if they cross the yellow line)
  • Alerts be sent to drivers, staff and other stakeholders if someone is stuck in the gap
  • Can get a measure of the number of passengers on both the train carriages and the platforms
  • All using existing camera infrastructure
  • processing can be done in real time on a computer the size of a credit card (Raspberry Pi for example)

How it works

  • Uses CV analysis with filters applied to remove clutter
  • Computationally efficient
  • Detects static and moving objects
  • Distinguish between objects based on motion criteria
  • Analyses both platforms and carriages
  • Provides a busyness measure for each, compensating for perspective distortion

Platform Train Interface Vision System

Stakeholder Benefit

Passengers (customers)

  • Improved safety at the Platform Train Interface
  • Optimisation of their Platform Train Interface experience

Drivers

  • Increase driver’s experience and go some way to reduce stress and pressure
  • Assist the driver to maintain on-time services by reducing passenger boarding dwell time, further helping to reduce safety related incidents

Train and Station Operators

  • Improved safety of passengers through a reduction in Platform Train Interface FWI incidents
  • Faster passenger boarding at the Platform Train Interface can aid station operators in running a safer and quicker service
  • (side effect) improved passenger movement will help to reduce larger crowds and subsequently improving safety

Upcoming Conferences

Conference Railway

7th European Transport Research Arena

Between 16-19th April 2018 Digital Rail will be presenting a Poster on ‘Opportunities for resilient rail system development using natural language processing’ at the 7th European Transport Research Arena Conference in Vienna. The Transport Research Arena 2018 will include a wide spectrum of research and innovation activities spanning basic research to application-oriented engineering, social, technical and economic aspects as well as policies and standards. The Conference covers all modes of transport: rail, road, waterborne, aviation, and cross-modal.

You can read our paper which examines a natural language and machine learning approach to assessing railway hazard logs here.

Find out more about the full Conference programme on their website: www.traconference.eu

Fourth International Conference on Railway Technology: Research, Development and Maintenance

In September 2018 we will be running a Special Session on ‘Using Big data to Increase Railway Resilience’ at the Fourth International Conference on Railway Technology: Research, Development and Maintenance in Barcelona, Incorporating: The Eighth International Symposium on Speed-up and Sustainable Technology for Railway and Maglev Systems.

The conference will be exploring themes ranging from Infrastructure, Strategies and Economics, Planning and Operations, and Signalling and Communication, amongst others.

www.railwaysconference.com

Upcoming Conference: Railway

Will a data driven approach replace RAMS and conventional safety engineering?

If one looks through the railway safety and reliability standards, EN50126 / EN51028/9 https://www.linkedin.com/groups/4985242 and the recommended activity at each life-cycle stage it will be seen that nearly all the items are data driven. Using Big Data and Machine Learning we could eliminate a lot of the work done now by safety engineers. Of course you would have to follow a more formal system engineering approach to ensure that the data was created and logged properly but requirements management databases like DOORS and system modelling using for example SysML (Systems Modeling Language) would enable that to happen couple with BIM (Business Information Modelling). BIM means that railway design and development is properly documented through the use of CAD.

factors-influencing-railway-rams

The diagram above shows factors affecting RAMS and they are all based upon some form of data either structure/unstructured and real time/historical. They all provide management information that must be acted upon by using some form of decision logic. All of which is amenable to replication by an intelligent machine.

I conclude that RAMS is a now a past-its-sell by date of a commodity. The Fault Tree below might soon be redundant replaced by real data and modelling.

fault-tree