Using distributed acoustic sensing for rail security

Using distributed acoustic sensing for rail security

Peter Derry, innovations director, considers the pros and cons of distributed acoustic sensing (DAS) for security in the rail industry.

Monitoring large areas if track and stock has never been so easy. Fibre optic cables carry pulses of light from one end to the other. Any disturbance will disrupt this light through the vibrations of an object landing near the cable or a person walking over them. This simple but effective technology can be used alongside railway tracks, in depots and close to other rail assets to increase security of this high-value equipment.

With the right monitoring in place these disruptions can be analysed to determine the strength, nature and location of the disturbance. Acoustic sensing can be used in this way to enhance the delivery of security services across the rail industry. However to implement this would crucially require commitment and investment in training – the technology is only as good as the response of a monitoring team.

Peter Derry, innovations director, further considers the pros and cons of distributed acoustic security for security in the rail industry in Railway Strategies magazine. Read the full story here from page 14 – 17.

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