Railway Inspection Using Drones and Fiber-Optic Technologies
21.10.2025
Sensonic and Skylark Drones unveiled a joint initiative on railway inspection through distributed acoustic sensing along with Bharat autonomous drones to increase efficiency as well as security in rail transportation.
This is reported by the railway transport news portal Railway Supply.

Railway Inspection with the Innovative DAS System
Sensonic, India’s Kaynes Technology Group company, and Skylark Drones, a pioneering drone technology firm, signed a joint cooperation agreement. The joint players will combine Distributed Acoustic Sensing (DAS), dependent on fiber-optic cable technology, with Bharat drone technology with an aim to transform rail infrastructure surveillance.
This method can identify unauthorized intrusions, ground movements, or other threating situations to the infrastructure in real-time. The sound and vibration are detected along the tracks through DAS system technology, while flagged locations are promptly scanned with drones—saving on manpower to send to the location.
Integrating DAS with drones forms a smart ecosystem that brings together monitoring, analytics, and predictive maintenance. It minimizes operating expenses as well as assists operators in avoiding accidents rather than responding after incidences happen.
How Railway Inspection Accelerates Rail Industry Digitalization
The joint venture of Sensonic with Skylark Drones is a testament that digitalization of railways is going international. The utilization of Bharat drones is not only allowing visual inspection of data but also allowing proper 3D models for analysis of infrastructures.
Since both technologies support one another, their combination enhances decision-making speed as well as diagnostic accuracy. Railway managers can predict technical failures, schedule maintenance, as well as guarantee network sustainability and reliability.
Specialists are of the view that such collaboration represents a new era in rail system administration. It opens up fully automated modes of control, with people concentrating on analysis of data while machines are in charge of observation and reacting.
News on railway transport, industry, and railway technologies from Railway Supply that you might have missed:
What is railway inspection?
It is the process of monitoring and analyzing rail infrastructure to ensure safety, reliability, and early detection of technical issues.
How does the DAS system work in railway inspection?
DAS technology uses fiber-optic cables to capture vibrations and sounds, enabling real-time detection of potential threats or damage along railway tracks.
Can drones be used for regular railway monitoring?
Yes, autonomous drones like the Bharat series can perform routine inspections and capture visual data, accelerating diagnostics and reducing maintenance costs.
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