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TRI-NETRA : enhancing the vision of Locomotive Pilots in inclement weather
Jul 18, 2016

TRI-NETRA stands for - Terrain imaging for diesel dRivers INfra-red, Enhanced opTical &Radar Assisted system.

TRI-NETRA system shall be made up of high-resolution optical video camera, high sensitivity infra-red video camera and additionally a radar-based terrain mapping system.

These three components of the system shall act as three eyes (Tri-Netra) of the Locomotive Pilot.

TRI-NETRA is designed to “see” the terrain ahead of the running locomotive during inclement weather by combining the images captured by the three sub-systems and to create a composite video image which shall be displayed in front of the Loco Pilot on a computer monitor.

During fog, heavy rain and also during night, the locomotive pilots face serious challenges in looking out ahead to spot any obstruction on the track such as vehicles which get stuck while crossing the track or trees or boulders which have fallen across the track etc. Because of the heavy momentum of the running train, the train driver has to always adjust the speed of the train such that he or she can stop the train on visually

seeing the obstruction. In fair weather and in daytime, this is not a problem since train driver has a clear view of the track ahead. But in poor visibility, he has to reduce the speed suitably so that the brakes can be applied in time to stop the train without hitting the obstructions.

This is where TRI-NETRA will come into picture and give the locomotive pilot a clear view of the track ahead in bad visibility conditions so that he can apply brakes well in time. Conversely, he can speed up the train even in poor visibility if the TRI-NETRA system shows that the track ahead is clear of obstruction. The system shall also map the terrain ahead so that the driver knows when he is approaching a station or a signal.


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